/* ===== CSS Variables & Design Tokens ===== */
:root {
    /* Modern Color Palette - Enhanced Gradients */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-gradient-hover: linear-gradient(135deg, #7c8ef0 0%, #8e5ab8 100%);
    --secondary-gradient: linear-gradient(135deg, #00d2ff 0%, #3a7bd5 100%);
    --success-gradient: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    --warning-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --danger-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    --info-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    
    /* Gradient Overlays */
    --gradient-mesh: radial-gradient(at 40% 20%, hsla(260, 70%, 50%, 0.15) 0px, transparent 50%),
                     radial-gradient(at 80% 0%, hsla(189, 70%, 50%, 0.15) 0px, transparent 50%),
                     radial-gradient(at 0% 50%, hsla(355, 70%, 50%, 0.15) 0px, transparent 50%);
    
    /* Theme transition */
    --theme-transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;

    /* Primary Colors */
    --primary-500: #667eea;
    --primary-600: #5a67d8;
    --primary-700: #4c51bf;
    --primary-400: #7c8ef0;
    --primary-300: #b0b8f5;

    /* Accent Colors */
    --purple-500: #8b5cf6;
    --purple-600: #7c3aed;
    --purple-400: #a78bfa;

    --blue-500: #3b82f6;
    --blue-600: #2563eb;
    --blue-400: #60a5fa;

    --green-500: #10b981;
    --green-600: #059669;
    --green-400: #34d399;

    --orange-500: #f59e0b;
    --orange-600: #d97706;
    --orange-400: #fbbf24;

    --pink-500: #ec4899;
    --pink-600: #db2777;
    --pink-400: #f472b6;

    --cyan-500: #06b6d4;
    --cyan-600: #0891b2;
    --cyan-400: #22d3ee;

    /* Neutral Colors - Enhanced */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --gray-950: #020617;

    /* Semantic Colors - Dark Theme */
    --background: #0a0b11;
    --background-secondary: #0f1119;
    --surface: linear-gradient(135deg, rgba(15, 18, 29, 0.9) 0%, rgba(18, 21, 33, 0.9) 100%);
    --surface-card: rgba(20, 24, 38, 0.6);
    --surface-hover: rgba(30, 35, 52, 0.8);
    --border: rgba(148, 163, 184, 0.12);
    --border-light: rgba(148, 163, 184, 0.06);
    --border-strong: rgba(148, 163, 184, 0.2);
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --text-disabled: #64748b;

    /* Glass Effect */
    --glass-bg: rgba(15, 18, 29, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius - Modern */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.25rem;
    --radius-2xl: 1.5rem;
    --radius-3xl: 2rem;
    --radius-full: 9999px;

    /* Enhanced Shadows */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 2px 4px 0 rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px -2px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 12px 24px -4px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 24px 48px -12px rgba(0, 0, 0, 0.4);
    --shadow-2xl: 0 32px 64px -16px rgba(0, 0, 0, 0.5);
    --shadow-glow-primary: 0 0 32px rgba(102, 126, 234, 0.3);
    --shadow-glow-secondary: 0 0 32px rgba(59, 130, 246, 0.3);
    --shadow-glow-success: 0 0 32px rgba(16, 185, 129, 0.3);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.1);

    /* Transitions - Advanced */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --transition-smooth: 400ms cubic-bezier(0.25, 0.46, 0.45, 0.94);

    /* Sidebar */
    --sidebar-width: 280px;
    --sidebar-collapsed-width: 80px;

    /* Z-index layers */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ===== Light Theme ===== */
[data-theme="light"] {
    --background: #fafbfc;
    --background-secondary: #f5f7fa;
    --surface: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 250, 252, 0.95) 100%);
    --surface-card: rgba(255, 255, 255, 0.8);
    --surface-hover: rgba(241, 245, 249, 0.9);
    --border: rgba(15, 23, 42, 0.08);
    --border-light: rgba(15, 23, 42, 0.04);
    --border-strong: rgba(15, 23, 42, 0.16);
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;
    --text-disabled: #94a3b8;

    /* Glass Effect */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(148, 163, 184, 0.2);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.08);
    
    /* Enhanced Shadows for Light */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 2px 4px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 8px -2px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 24px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 24px 48px -12px rgba(0, 0, 0, 0.12);
    --shadow-2xl: 0 32px 64px -16px rgba(0, 0, 0, 0.14);
    --shadow-glow-primary: 0 0 32px rgba(102, 126, 234, 0.2);
    --shadow-glow-secondary: 0 0 32px rgba(59, 130, 246, 0.2);
    --shadow-glow-success: 0 0 32px rgba(16, 185, 129, 0.2);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);

    /* Gradient Mesh for Light */
    --gradient-mesh: radial-gradient(at 40% 20%, hsla(260, 60%, 85%, 0.2) 0px, transparent 50%),
                     radial-gradient(at 80% 0%, hsla(189, 60%, 85%, 0.2) 0px, transparent 50%),
                     radial-gradient(at 0% 50%, hsla(355, 60%, 85%, 0.2) 0px, transparent 50%);
}

[data-theme="light"] .sidebar {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 250, 252, 0.95) 100%);
    border-right: 1px solid var(--border);
    backdrop-filter: blur(20px);
}

[data-theme="light"] .nav-item:hover,
[data-theme="light"] .nav-item.active {
    background: rgba(16, 185, 129, 0.1);
}

[data-theme="light"] .stat-card,
[data-theme="light"] .card {
    background: #ffffff;
    border: 1px solid var(--border);
}

[data-theme="light"] .modal-content {
    background: #ffffff;
    border: 1px solid var(--border);
}

[data-theme="light"] input,
[data-theme="light"] select,
[data-theme="light"] textarea {
    background: #f8fafc;
    border-color: #e2e8f0;
    color: #0f172a;
}

[data-theme="light"] input:focus,
[data-theme="light"] select:focus,
[data-theme="light"] textarea:focus {
    background: #ffffff;
    border-color: var(--primary-500);
}

[data-theme="light"] .data-table th {
    background: #f1f5f9;
    color: #475569;
}

[data-theme="light"] .data-table td {
    border-bottom-color: #e2e8f0;
}

[data-theme="light"] .data-table tbody tr:hover {
    background: #f8fafc;
}

[data-theme="light"] .login-container {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

[data-theme="light"] .login-card {
    background: #ffffff;
    border: 1px solid var(--border);
}

[data-theme="light"] .calendar-day:hover {
    background: #f1f5f9;
}

[data-theme="light"] .chart-placeholder {
    background: #f8fafc;
}

[data-theme="light"] .user-profile {
    background: #f1f5f9;
}

[data-theme="light"] .user-avatar {
    background: var(--primary-gradient);
    color: white;
}

[data-theme="light"] .btn-secondary {
    background: #e2e8f0;
    color: #475569;
}

[data-theme="light"] .btn-secondary:hover {
    background: #cbd5e1;
}

[data-theme="light"] .activity-item {
    background: #f8fafc;
    border-left-color: var(--primary-500);
}

[data-theme="light"] .search-input {
    background: #f1f5f9;
    border-color: #e2e8f0;
}

[data-theme="light"] .search-input:focus {
    background: #ffffff;
    border-color: var(--primary-500);
}

[data-theme="light"] .notification-dropdown,
[data-theme="light"] .dropdown-menu {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .progress-bar {
    background: #e2e8f0;
}

[data-theme="light"] .faculty-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
}

[data-theme="light"] .faculty-card:hover {
    border-color: var(--primary-500);
}

[data-theme="light"] .chart-card {
    background: #ffffff;
    border: 1px solid var(--border);
}

[data-theme="light"] .chart-filter {
    background: #f1f5f9;
    color: #334155;
}

[data-theme="light"] .page-header p {
    color: #64748b;
}

/* ===== Global Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-mesh);
    opacity: 1;
    pointer-events: none;
    z-index: 0;
}

/* Add smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--background);
}

::-webkit-scrollbar-thumb {
    background: var(--border-strong);
    border-radius: var(--radius-full);
    transition: background var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ===== Sidebar ===== */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--glass-bg);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    transition: width var(--transition-base);
    z-index: var(--z-fixed);
    box-shadow: var(--shadow-lg);
}

.sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: radial-gradient(ellipse at top, rgba(102, 126, 234, 0.15), transparent);
    pointer-events: none;
}

.sidebar-header {
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-Content: space-between;
    position: relative;
    z-index: 1;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all var(--transition-base);
}

.logo:hover {
    transform: scale(1.02);
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.sidebar-toggle {
    background: var(--surface-hover);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
}

.sidebar-toggle:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
    border-color: var(--primary-500);
    transform: rotate(90deg);
    box-shadow: var(--shadow-md);
}

.sidebar-nav {
    flex: 1;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    overflow-y: auto;
    overflow-x: hidden;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-lg);
    transition: all var(--transition-smooth);
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.nav-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 0;
    background: var(--primary-gradient);
    border-radius: 0 4px 4px 0;
    transition: height var(--transition-smooth);
}

.nav-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--primary-gradient);
    opacity: 0;
    transition: opacity var(--transition-fast);
    border-radius: var(--radius-lg);
}

.nav-item:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
    transform: translateX(4px);
    box-shadow: var(--shadow-sm);
}

.nav-item.active {
    background: var(--surface-card);
    color: var(--primary-500);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
}

.nav-item.active::before {
    height: 60%;
}

.nav-item.active::after {
    opacity: 0.05;
}

.nav-item svg {
    flex-shrink: 0;
    position: relative;
    z-index: 1;
    transition: transform var(--transition-smooth);
}

.nav-item:hover svg {
    transform: scale(1.1);
}

.nav-item span {
    position: relative;
    z-index: 1;
}

.nav-section-divider {
    padding: var(--spacing-sm) var(--spacing-lg);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
    border-top: 1px solid var(--border);
}

.nav-section-divider span {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
}

.sidebar-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border);
    backdrop-filter: blur(8px);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    background: var(--surface-card);
    border: 1px solid var(--border);
    position: relative;
    overflow: visible;
}

.user-profile::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--primary-gradient);
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
    z-index: 0;
}

.user-profile:hover {
    background: var(--surface-hover);
    border-color: var(--primary-500);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.user-profile:hover::before {
    opacity: 0.05;
}

/* Prevent hover effect interference with buttons */
.user-profile:hover .theme-toggle-btn,
.user-profile:hover .logout-btn {
    /* Maintain button styles on parent hover */
}

.user-avatar {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: 1;
    transition: all var(--transition-base);
}

.user-profile:hover .user-avatar {
    transform: scale(1.1);
    box-shadow: var(--shadow-glow-primary);
}

.user-info {
    flex: 1;
    position: relative;
    z-index: 1;
}

.user-name {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.theme-toggle-btn,
.logout-btn {
    position: relative;
    z-index: 2;
}

/* Ensure buttons are always visible and clickable */
.user-profile .theme-toggle-btn,
.user-profile .logout-btn {
    pointer-events: auto;
    cursor: pointer;
}

/* ===== Main Content ===== */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    padding: var(--spacing-2xl);
    transition: margin-left var(--transition-base);
    position: relative;
    z-index: 1;
}

/* ===== Page Styles ===== */
.page {
    display: none;
    animation: fadeInUp 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.page.active {
    display: block;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.page-header {
    margin-bottom: var(--spacing-2xl);
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    animation: fadeIn 0.6s ease-out;
}

.header-content h2 {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-content p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.5;
}

.header-actions {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
    padding: 0.875rem 1.75rem;
    border: none;
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    text-transform: none;
    letter-spacing: 0.01em;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    transform: translate(-50%, -50%);
    transition: width var(--transition-base), height var(--transition-base);
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn:active {
    transform: scale(0.98);
}

.btn svg {
    position: relative;
    z-index: 1;
    transition: transform var(--transition-fast);
}

.btn:hover svg {
    transform: scale(1.1);
}

.btn span {
    position: relative;
    z-index: 1;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: var(--shadow-glow-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-primary:hover {
    box-shadow: var(--shadow-xl), var(--shadow-glow-primary);
    transform: translateY(-2px);
    background: var(--primary-gradient-hover);
}

.btn-secondary {
    background: var(--surface-card);
    color: var(--text-primary);
    border: 1px solid var(--border);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover {
    background: var(--surface-hover);
    border-color: var(--primary-500);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.btn-danger {
    background: var(--surface-card);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.15);
    border-color: #ef4444;
    box-shadow: 0 0 20px rgba(239, 68, 68, 0.3);
    transform: translateY(-2px);
}

.btn-success {
    background: var(--success-gradient);
    color: white;
    box-shadow: var(--shadow-glow-success);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-success:hover {
    box-shadow: var(--shadow-xl), var(--shadow-glow-success);
    transform: translateY(-2px);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* ===== Stats Grid ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.stat-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    display: flex;
    gap: var(--spacing-lg);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-smooth);
}

.stat-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, rgba(102, 126, 234, 0.08), transparent 60%);
    opacity: 0;
    transition: opacity var(--transition-smooth);
    pointer-events: none;
}

.stat-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--primary-500);
}

.stat-card:hover::before {
    transform: scaleX(1);
}

.stat-card:hover::after {
    opacity: 1;
}

.stat-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--transition-smooth);
    box-shadow: var(--shadow-sm);
    position: relative;
    z-index: 1;
}

.stat-card:hover .stat-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--shadow-lg);
}

.stat-icon.purple {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(125, 58, 237, 0.2) 100%);
    color: var(--purple-500);
    box-shadow: 0 8px 16px rgba(139, 92, 246, 0.2);
}

.stat-icon.blue {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2) 0%, rgba(37, 99, 235, 0.2) 100%);
    color: var(--blue-500);
    box-shadow: 0 8px 16px rgba(59, 130, 246, 0.2);
}

.stat-icon.green {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.2) 0%, rgba(52, 211, 153, 0.2) 100%);
    color: var(--green-500);
    box-shadow: 0 8px 16px rgba(16, 185, 129, 0.2);
}

.stat-icon.orange {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2) 0%, rgba(251, 191, 36, 0.2) 100%);
    color: var(--orange-500);
    box-shadow: 0 8px 16px rgba(245, 158, 11, 0.2);
}

.stat-icon.pink {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.2) 0%, rgba(219, 39, 119, 0.2) 100%);
    color: var(--pink-500);
    box-shadow: 0 8px 16px rgba(236, 72, 153, 0.2);
}

.stat-icon.cyan {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.2) 0%, rgba(34, 211, 238, 0.2) 100%);
    color: var(--cyan-500);
    box-shadow: 0 8px 16px rgba(6, 182, 212, 0.2);
}

.stat-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.8125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    line-height: 1;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-change {
    font-size: 0.8125rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-full);
    backdrop-filter: blur(8px);
}

.stat-change.positive {
    color: var(--green-500);
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.stat-change.negative {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.stat-change::before {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    border-style: solid;
}

.stat-change.positive::before {
    border-width: 0 4px 6px 4px;
    border-color: transparent transparent currentColor transparent;
}

.stat-change.negative::before {
    border-width: 6px 4px 0 4px;
    border-color: currentColor transparent transparent transparent;
}

.stat-change.neutral {
    color: var(--text-secondary);
}

/* ===== Charts ===== */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.chart-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.chart-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top left, rgba(102, 126, 234, 0.05), transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-smooth);
    pointer-events: none;
}

.chart-card:hover {
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-500);
    transform: translateY(-4px);
}

.chart-card:hover::before {
    opacity: 1;
}

.chart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.chart-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--text-primary);
}

.chart-filter {
    background: var(--surface-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-smooth);
    backdrop-filter: blur(8px);
}

.chart-filter:hover {
    border-color: var(--primary-500);
    background: var(--surface-hover);
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}

.chart-container {
    height: 300px;
    position: relative;
}

.chart-container.large {
    height: 400px;
}

/* ===== Activity Section ===== */
.activity-section {
    background: var(--glass-bg);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-smooth);
}

.activity-section:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--border-strong);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.section-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--text-primary);
}

.view-all {
    color: var(--primary-500);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-lg);
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.2);
}

.view-all:hover {
    color: var(--primary-600);
    background: rgba(102, 126, 234, 0.15);
    transform: translateX(2px);
}

.activity-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.activity-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    transition: all var(--transition-smooth);
    border: 1px solid transparent;
}

.activity-item:hover {
    background: var(--surface-hover);
    border-color: var(--border);
    transform: translateX(4px);
    box-shadow: var(--shadow-sm);
}

.activity-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-smooth);
}

.activity-item:hover .activity-icon {
    transform: scale(1.1) rotate(5deg);
}

.activity-content {
    flex: 1;
}

.activity-title {
    font-weight: 600;
    margin-bottom: 0.125rem;
    color: var(--text-primary);
}

.activity-meta {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* ===== Faculty Grid ===== */
.faculty-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.faculty-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.faculty-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-smooth);
}

.faculty-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at bottom right, rgba(102, 126, 234, 0.08), transparent 60%);
    opacity: 0;
    transition: opacity var(--transition-smooth);
    pointer-events: none;
}

.faculty-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--primary-500);
}

.faculty-card:hover::before {
    transform: scaleX(1);
}

.faculty-card:hover::after {
    opacity: 1;
}

.faculty-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.faculty-avatar {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-xl);
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
}

.faculty-info h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.faculty-position {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.faculty-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.faculty-detail {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.faculty-detail svg {
    flex-shrink: 0;
}

.faculty-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.faculty-actions .btn {
    flex: 1;
    justify-content: center;
    padding: 0.625rem 1rem;
    font-size: 0.8125rem;
}

/* ===== Search Box ===== */
.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-box svg {
    position: absolute;
    left: var(--spacing-md);
    color: var(--text-secondary);
}

.search-box input {
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-size: 0.875rem;
    width: 300px;
    transition: all var(--transition-fast);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

/* ===== Workload Table ===== */
.workload-container {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
}

.workload-filters {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.filter-select {
    background: var(--background);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.625rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-select:hover {
    border-color: var(--primary-500);
}

.workload-table-container {
    overflow-x: auto;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

.workload-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.workload-table thead {
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
}

.workload-table th {
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: left;
    font-weight: 700;
    font-size: 0.8125rem;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-strong);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.workload-table th:first-child {
    border-top-left-radius: var(--radius-xl);
}

.workload-table th:last-child {
    border-top-right-radius: var(--radius-xl);
}

.workload-table td {
    padding: var(--spacing-lg) var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.workload-table tbody tr {
    transition: all var(--transition-smooth);
    position: relative;
}

.workload-table tbody tr:hover {
    background: var(--surface-hover);
    box-shadow: var(--shadow-sm);
}

.workload-table tbody tr:hover td {
    color: var(--text-primary);
}

.workload-table tbody tr:last-child td:first-child {
    border-bottom-left-radius: var(--radius-xl);
}

.workload-table tbody tr:last-child td:last-child {
    border-bottom-right-radius: var(--radius-xl);
}

.workload-table tbody tr:last-child td {
    border-bottom: none;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 700;
    border: 1px solid;
    backdrop-filter: blur(8px);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.status-badge.optimal {
    background: rgba(16, 185, 129, 0.15);
    color: var(--green-500);
    border-color: rgba(16, 185, 129, 0.3);
}

.status-badge.high {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    border-color: rgba(239, 68, 68, 0.3);
}

.status-badge.low {
    background: rgba(59, 130, 246, 0.15);
    color: var(--blue-500);
    border-color: rgba(59, 130, 246, 0.3);
}

/* ===== Workload Summary Grid ===== */
.workload-summary-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.workload-summary-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all var(--transition-base);
}

.workload-summary-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.summary-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.summary-icon.green {
    background: rgba(16, 185, 129, 0.15);
    color: var(--green-500);
}

.summary-icon.orange {
    background: rgba(251, 146, 60, 0.15);
    color: #fb923c;
}

.summary-icon.blue {
    background: rgba(59, 130, 246, 0.15);
    color: var(--blue-500);
}

.summary-icon.purple {
    background: rgba(139, 92, 246, 0.15);
    color: #8b5cf6;
}

.summary-content {
    display: flex;
    flex-direction: column;
}

.summary-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
}

.summary-label {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Workload Status Badge Extensions */
.status-badge.balanced {
    background: rgba(16, 185, 129, 0.15);
    color: var(--green-500);
    border-color: rgba(16, 185, 129, 0.3);
}

.status-badge.overloaded {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    border-color: rgba(239, 68, 68, 0.3);
}

.status-badge.underloaded {
    background: rgba(59, 130, 246, 0.15);
    color: var(--blue-500);
    border-color: rgba(59, 130, 246, 0.3);
}

/* Workload Table Row Clickable */
.workload-table tbody tr {
    cursor: pointer;
}

.workload-table tbody tr:hover {
    background: rgba(16, 185, 129, 0.08);
}

/* Classes Count Badge */
.classes-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    padding: 0 8px;
    background: rgba(59, 130, 246, 0.15);
    color: var(--blue-500);
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 0.875rem;
}

/* ===== Workload Detail Panel ===== */
.workload-detail-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.detail-panel-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border);
}

.detail-panel-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.faculty-detail-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border);
}

.faculty-detail-avatar {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 800;
    color: white;
    flex-shrink: 0;
}

.faculty-detail-info h3 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.faculty-detail-info p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.faculty-detail-status {
    margin-left: auto;
    text-align: right;
}

.faculty-detail-status .status-badge {
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
}

.workload-breakdown {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.breakdown-card {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
}

.breakdown-card h4 {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

.breakdown-card .value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
}

.breakdown-card .unit {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.breakdown-card.teaching {
    border-color: rgba(16, 185, 129, 0.3);
    background: rgba(16, 185, 129, 0.05);
}

.breakdown-card.teaching .value {
    color: var(--green-500);
}

.breakdown-card.admin {
    border-color: rgba(59, 130, 246, 0.3);
    background: rgba(59, 130, 246, 0.05);
}

.breakdown-card.admin .value {
    color: var(--blue-500);
}

.breakdown-card.research {
    border-color: rgba(139, 92, 246, 0.3);
    background: rgba(139, 92, 246, 0.05);
}

.breakdown-card.research .value {
    color: #8b5cf6;
}

/* Schedule Section in Detail */
.schedule-section {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.schedule-section h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.schedule-section h4 svg {
    color: var(--primary-500);
}

.schedule-grid-mini {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.schedule-item-mini {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.schedule-item-mini .course-code {
    font-weight: 700;
    color: var(--primary-500);
    font-size: 0.9375rem;
}

.schedule-item-mini .course-name {
    color: var(--text-secondary);
    font-size: 0.8125rem;
}

.schedule-item-mini .schedule-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xs);
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.schedule-item-mini .schedule-meta span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* Schedule Item Header with Edit Button */
.schedule-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn-update-progress {
    background: rgba(59, 130, 246, 0.15);
    border: none;
    border-radius: var(--radius-sm);
    padding: 0.375rem;
    cursor: pointer;
    color: var(--blue-500);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-update-progress:hover {
    background: rgba(59, 130, 246, 0.25);
    transform: scale(1.1);
}

/* Progress Section in Schedule Item */
.progress-section {
    margin-top: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.progress-bar-mini {
    flex: 1;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 0.6875rem;
    color: var(--text-tertiary);
    white-space: nowrap;
}

/* Progress Modal Styles */
.progress-modal-info {
    background: var(--background);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.progress-modal-info strong {
    color: var(--primary-500);
    font-size: 1rem;
}

.progress-modal-info span {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.progress-preview {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--background);
    border-radius: var(--radius-md);
}

.progress-bar-preview {
    flex: 1;
    height: 12px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill-preview {
    height: 100%;
    border-radius: var(--radius-full);
    transition: all 0.3s ease;
    background: var(--blue-500);
}

#progressPercentPreview {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-primary);
    min-width: 50px;
    text-align: right;
}

/* Non-Teaching Load Section */
.non-teaching-section {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.non-teaching-section h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.non-teaching-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.non-teaching-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

.non-teaching-item .activity-name {
    font-weight: 500;
    color: var(--text-primary);
}

.non-teaching-item .activity-units {
    font-weight: 700;
    color: var(--primary-500);
}

/* Activity Progress UI */
.non-teaching-item {
    flex-direction: column;
    gap: var(--spacing-sm);
}

.non-teaching-item .activity-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.non-teaching-item .activity-progress {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    width: 100%;
}

.non-teaching-item .activity-progress .progress-bar-mini {
    flex: 1;
}

.non-teaching-item .activity-progress .progress-text {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    min-width: 35px;
    text-align: right;
}

.non-teaching-item .btn-update-progress {
    padding: 4px;
}

/* Percent Input Container for Activity Modal */
.percent-input-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.percent-input-container input[type="range"] {
    flex: 1;
    height: 8px;
    -webkit-appearance: none;
    appearance: none;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    cursor: pointer;
}

.percent-input-container input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-500);
    cursor: pointer;
    border: 2px solid var(--surface);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.percent-input-container input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-500);
    cursor: pointer;
    border: 2px solid var(--surface);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.percent-input-container input[type="number"] {
    width: 70px;
    text-align: center;
}

.percent-input-container span {
    font-weight: 600;
    color: var(--text-secondary);
}

#activityPercentPreview {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-primary);
    min-width: 50px;
    text-align: right;
}

/* Responsive for Summary Grid */
@media (max-width: 1024px) {
    .workload-summary-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .workload-summary-grid {
        grid-template-columns: 1fr;
    }
    
    .workload-breakdown {
        grid-template-columns: 1fr;
    }
}

/* ===== Analytics Grid ===== */
.analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
}

.analytics-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
}

.analytics-card.full-width {
    grid-column: 1 / -1;
}

.analytics-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-500);
}

/* ===== Calendar ===== */
.calendar-container {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
}

.calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.calendar-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
}

.calendar-nav {
    background: var(--background);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.calendar-nav:hover {
    background: var(--surface-hover);
    border-color: var(--primary-500);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: var(--spacing-sm);
}

.calendar-day-header {
    text-align: center;
    padding: var(--spacing-md);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.calendar-day {
    aspect-ratio: 1;
    padding: var(--spacing-sm);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.calendar-day:hover {
    background: var(--surface-hover);
    border-color: var(--primary-500);
}

.calendar-day.today {
    background: rgba(16, 185, 129, 0.1);
    border-color: var(--primary-500);
}

.calendar-day.other-month {
    opacity: 0.3;
}

.calendar-day-number {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.calendar-day-events {
    display: flex;
    gap: 2px;
}

.calendar-event-dot {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--primary-500);
}

/* ===== Reports Grid ===== */
.reports-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.report-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-base);
}

.report-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-500);
}

.report-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

.report-icon.purple {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(125, 58, 237, 0.15) 100%);
    color: var(--primary-500);
}

.report-icon.blue {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.15) 0%, rgba(8, 145, 178, 0.15) 100%);
    color: var(--blue-500);
}

.report-icon.green {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.2) 0%, rgba(52, 211, 153, 0.2) 100%);
    color: var(--green-500);
}

.report-icon.orange {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2) 0%, rgba(251, 191, 36, 0.2) 100%);
    color: var(--orange-500);
}

.report-icon.cyan {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.2) 0%, rgba(34, 211, 238, 0.2) 100%);
    color: #06b6d4;
}

.report-icon.pink {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.2) 0%, rgba(244, 114, 182, 0.2) 100%);
    color: #ec4899;
}

.report-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.report-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-lg);
}

.report-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

.report-actions .btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
}

.btn-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    border: none;
}

.btn-success:hover {
    background: linear-gradient(135deg,#059669 0%, #047857 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.35);
}

/* ===== Modal ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(12px) saturate(150%);
    -webkit-backdrop-filter: blur(12px) saturate(150%);
    z-index: var(--z-modal);
    align-items: center;
    justify-content: center;
    animation: fadeIn var(--transition-base);
    padding: var(--spacing-lg);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--glass-bg);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-3xl);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-2xl);
    animation: modalSlideUp 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
}

.modal-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: radial-gradient(ellipse at top, rgba(102, 126, 234, 0.15), transparent);
    pointer-events: none;
    border-radius: var(--radius-3xl) var(--radius-3xl) 0 0;
}

@keyframes modalSlideUp {
    from {
        opacity: 0;
        transform: translateY(40px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-2xl) var(--spacing-2xl) var(--spacing-xl);
    border-bottom: 1px solid var(--border);
    position: relative;
    z-index: 1;
}

.modal-header h3 {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-close {
    background: var(--surface-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-lg);
    transition: all var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
}

.modal-close:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
    border-color: var(--primary-500);
    transform: rotate(90deg);
    box-shadow: var(--shadow-md);
}

.modal-body {
    padding: var(--spacing-2xl);
    position: relative;
    z-index: 1;
}

.modal-footer {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-sm);
}

/* Large Modal for Edit Profile */
.modal-large {
    max-width: 800px;
}

/* Edit Profile Tabs */
.edit-profile-tabs {
    display: flex;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: var(--surface-card);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-xl);
    overflow-x: auto;
}

.edit-tab {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: transparent;
    border: none;
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-smooth);
    white-space: nowrap;
}

.edit-tab:hover {
    color: var(--text-primary);
    background: var(--surface-hover);
}

.edit-tab.active {
    background: var(--primary-gradient);
    color: white;
    box-shadow: var(--shadow-md);
}

.edit-tab-content {
    display: none;
}

.edit-tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Photo Upload Area */
.photo-upload-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xl);
    padding: var(--spacing-2xl);
    border: 2px dashed var(--border);
    border-radius: var(--radius-xl);
    background: var(--surface-card);
    cursor: pointer;
    transition: all var(--transition-smooth);
}

.photo-upload-area:hover,
.photo-upload-area.dragover {
    border-color: var(--primary-500);
    background: rgba(102, 126, 234, 0.05);
}

.photo-preview {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-hover);
    border: 3px solid var(--border);
}

.photo-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.photo-placeholder-large {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-secondary);
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.upload-instructions {
    text-align: center;
    color: var(--text-secondary);
}

.upload-instructions svg {
    opacity: 0.5;
    margin-bottom: var(--spacing-md);
}

.upload-instructions p {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.upload-instructions span {
    font-size: 0.875rem;
}

/* ===== Form Styles ===== */
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.form-group label svg {
    color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1.125rem;
    background: var(--surface-card);
    backdrop-filter: blur(8px);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-size: 0.9375rem;
    font-family: inherit;
    transition: all var(--transition-smooth);
    box-shadow: var(--shadow-sm);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover {
    border-color: var(--border-strong);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-500);
    background: var(--surface-hover);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15), var(--shadow-md);
    transform: translateY(-1px);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
    cursor: pointer;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--surface-hover);
    border: 1px solid var(--border);
    transition: var(--transition-base);
    border-radius: 26px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: var(--text-secondary);
    transition: var(--transition-base);
    border-radius: 50%;
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--primary-500);
    border-color: var(--primary-500);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(24px);
    background-color: white;
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .sidebar {
        width: var(--sidebar-collapsed-width);
    }

    .sidebar .logo h1,
    .sidebar .nav-item span,
    .sidebar .user-info {
        display: none;
    }

    .main-content {
        margin-left: var(--sidebar-collapsed-width);
    }

    .charts-grid,
    .analytics-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: var(--spacing-lg);
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .header-actions {
        width: 100%;
        flex-wrap: wrap;
    }

    .search-box input {
        width: 100%;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .faculty-grid,
    .reports-grid {
        grid-template-columns: 1fr;
    }

    .workload-table-container {
        overflow-x: scroll;
    }
}

/* ===== Scrollbar Styling ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--background);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-600);
}

/* ===== Login Screen ===== */
.login-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--background);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transition: opacity var(--transition-slow);
}

.login-screen::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-mesh);
    opacity: 1;
    pointer-events: none;
}

.login-screen.hidden {
    opacity: 0;
    pointer-events: none;
}

.login-container {
    position: relative;
    z-index: 2;
    background: var(--glass-bg);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-3xl);
    padding: var(--spacing-2xl);
    width: 90%;
    max-width: 420px;
    box-shadow: var(--shadow-2xl), var(--shadow-glow-primary);
    animation: loginFadeIn 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.login-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: radial-gradient(ellipse at top, rgba(102, 126, 234, 0.2), transparent);
    pointer-events: none;
    border-radius: var(--radius-3xl) var(--radius-3xl) 0 0;
}

@keyframes loginFadeIn {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    position: relative;
    z-index: 1;
}

.login-logo {
    display: inline-flex;
    margin-bottom: var(--spacing-lg);
    animation: logoFloat 3s ease-in-out infinite;
    filter: drop-shadow(0 8px 16px rgba(102, 126, 234, 0.4));
}

.login-logo svg {
    width: 64px;
    height: 64px;
}

@keyframes logoFloat {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-12px);
    }
}

.login-header h1 {
    font-size: 2rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
}

.login-form .form-group {
    margin-bottom: var(--spacing-lg);
}

.login-form label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.login-form input {
    width: 100%;
    padding: 0.875rem 1.125rem;
    background: var(--surface-card);
    backdrop-filter: blur(8px);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-xl);
    color: var(--text-primary);
    font-size: 0.9375rem;
    font-family: inherit;
    transition: all var(--transition-smooth);
    box-shadow: var(--shadow-sm);
}

.login-form input::placeholder {
    color: var(--text-muted);
}

.login-form input:hover {
    border-color: var(--border-strong);
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary-500);
    background: var(--surface-hover);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15), var(--shadow-md);
    transform: translateY(-1px);
}

.password-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.toggle-password {
    position: absolute;
    right: 0.875rem;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.toggle-password:hover {
    color: var(--text-primary);
    background: rgba(148, 163, 184, 0.1);
    transform: scale(1.1);
}

.login-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-xl);
}

.remember-me {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.remember-me:hover {
    color: var(--text-primary);
}

.remember-me input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-500);
    border-radius: var(--radius-sm);
}

.btn-login {
    width: 100%;
    padding: 1rem 1.5rem;
    font-size: 1rem;
    font-weight: 700;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.01em;
}

.login-error {
    color: #ef4444;
    font-size: 0.875rem;
    font-weight: 600;
    text-align: center;
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    display: none;
    animation: errorShake 0.5s;
}

.login-error.show {
    display: block;
}

@keyframes errorShake {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-8px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(5px);
    }
}

.login-footer {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border);
    margin-top: var(--spacing-md);
}

.login-footer p {
    color: var(--text-secondary);
    font-size: 0.8125rem;
}

.login-footer strong {
    color: var(--primary-500);
    font-weight: 600;
}

.login-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: 1;
    opacity: 0.6;
}

.login-bg-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.15;
    filter: blur(60px);
    animation: floatCircle 25s ease-in-out infinite;
}

.circle-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.4), rgba(139, 92, 246, 0.2));
    top: -250px;
    left: -250px;
    animation-delay: 0s;
}

.circle-2 {
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.4), rgba(34, 211, 238, 0.2));
    bottom: -350px;
    right: -350px;
    animation-delay: 7s;
}

.circle-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.3), rgba(219, 39, 119, 0.2));
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 14s;
}

@keyframes floatCircle {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.15;
    }
    25% {
        transform: translate(40px, -50px) scale(1.15);
        opacity: 0.2;
    }
    50% {
        transform: translate(-30px, 30px) scale(0.95);
        opacity: 0.12;
    }
    75% {
        transform: translate(50px, 40px) scale(1.1);
        opacity: 0.18;
    }
}

/* ===== Theme Toggle Button ===== */
.theme-toggle-btn {
    background: var(--surface-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-lg);
    transition: all var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    flex-shrink: 0;
}

.theme-toggle-btn:hover {
    background: var(--surface-hover);
    color: var(--primary-500);
    border-color: var(--primary-500);
    transform: rotate(180deg);
    box-shadow: var(--shadow-md);
}

.theme-toggle-btn:active {
    transform: rotate(180deg) scale(0.95);
}

/* Show sun icon in dark mode (to switch to light), moon icon in light mode (to switch to dark) */
.theme-toggle-btn .sun-icon {
    display: block;
}

.theme-toggle-btn .moon-icon {
    display: none;
}

[data-theme="light"] .theme-toggle-btn .sun-icon {
    display: none;
}

[data-theme="light"] .theme-toggle-btn .moon-icon {
    display: block;
}

/* ===== Logout Button ===== */
.logout-btn {
    background: var(--surface-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-lg);
    transition: all var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    flex-shrink: 0;
}

.logout-btn:hover {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    border-color: rgba(239, 68, 68, 0.3);
    transform: translateX(2px);
    box-shadow: 0 0 16px rgba(239, 68, 68, 0.2);
}

.logout-btn:active {
    transform: translateX(2px) scale(0.95);
}

/* ===== App Content Hidden on Login ===== */
body.login-active .sidebar,
body.login-active .main-content {
    filter: blur(10px);
    pointer-events: none;
}

/* ===== Logout Confirmation Modal ===== */
.logout-modal-content {
    max-width: 420px;
    text-align: center;
    padding: var(--spacing-2xl);
}

.logout-modal-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(220, 38, 38, 0.1) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse-icon 2s ease-in-out infinite;
}

.logout-modal-icon svg {
    color: #ef4444;
}

@keyframes pulse-icon {

    0%,
    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4);
    }

    50% {
        transform: scale(1.05);
        box-shadow: 0 0 0 10px rgba(239, 68, 68, 0);
    }
}

.logout-modal-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.logout-modal-header p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.logout-modal-footer {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

.logout-modal-footer .btn {
    flex: 1;
    max-width: 150px;
}

.logout-confirm-btn {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%) !important;
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
}

.logout-confirm-btn:hover {
    box-shadow: 0 6px 20px rgba(239, 68, 68, 0.4);
    transform: translateY(-2px);
}

.delete-icon {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(220, 38, 38, 0.1) 100%);
}

.delete-icon svg {
    color: #ef4444;
}

/* ===== Role-Based Access Control ===== */
body.faculty-mode .btn-danger,
body.faculty-mode .btn-edit,
body.faculty-mode .icon-btn-delete,
body.faculty-mode .icon-btn-edit,
body.faculty-mode .action-buttons {
    display: none !important;
}

body.faculty-mode .faculty-card {
    pointer-events: none;
}

body.faculty-mode .faculty-card:hover {
    transform: none;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

/* Admin mode - hide faculty-only pages if somehow accessed */
body.admin-mode #profile-page,
body.admin-mode #schedule-page,
body.admin-mode #saln-page {
    display: none !important;
}

/* ===== Event Notification Banner ===== */
.notification-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-bottom: 1px solid var(--glass-border);
    color: white;
    padding: 1.25rem 2rem;
    box-shadow: var(--shadow-lg);
    z-index: 10000;
    animation: notificationSlideDown 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@keyframes notificationSlideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.notification-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.notification-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: var(--success-gradient);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow-success);
    animation: iconPulse 2s ease-in-out infinite;
}

@keyframes iconPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.notification-icon svg {
    width: 24px;
    height: 24px;
    stroke: white;
}

.notification-text {
    flex: 1;
}

.notification-text strong {
    display: block;
    font-size: 1.0625rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.notification-text p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin: 0;
}

.notification-close {
    flex-shrink: 0;
    background: var(--surface-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-smooth);
}

.notification-close:hover {
    background: var(--surface-hover);
    border-color: var(--primary-500);
    transform: rotate(90deg);
    box-shadow: var(--shadow-md);
}

.notification-close svg {
    stroke: var(--text-primary);
}

/* Adjust body padding when notification is shown */
body.notification-active {
    padding-top: 80px;
}

body.notification-active .sidebar,
body.notification-active .main-content {
    top: 80px;
}

/* ===== Modern Utility Classes ===== */

/* Glassmorphism Card */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
}

/* Gradient Text */
.gradient-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Shimmer Effect */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.shimmer {
    animation: shimmer 2s infinite;
    background: linear-gradient(
        to right,
        var(--surface-card) 0%,
        var(--surface-hover) 20%,
        var(--surface-card) 40%,
        var(--surface-card) 100%
    );
    background-size: 1000px 100%;
}

/* Floating Animation */
@keyframes floating {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.floating {
    animation: floating 3s ease-in-out infinite;
}

/* Pulse Effect */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.6;
    }
}

.pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Glow Effect */
.glow {
    box-shadow: var(--shadow-glow-primary);
    transition: box-shadow var(--transition-smooth);
}

.glow:hover {
    box-shadow: 0 0 48px rgba(102, 126, 234, 0.5);
}

/* Hover Lift */
.hover-lift {
    transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

/* Focus Ring */
.focus-ring:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.2);
}

/* Smooth Transitions */
.transition-all {
    transition: all var(--transition-smooth);
}

.transition-fast {
    transition: all var(--transition-fast);
}

/* Text Utilities */
.text-gradient-primary {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-secondary {
    background: var(--secondary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Border Gradient */
.border-gradient {
    position: relative;
    background: var(--surface-card);
    border-radius: var(--radius-xl);
}

.border-gradient::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-xl);
    padding: 2px;
    background: var(--primary-gradient);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
}

/* Stagger Animation for Lists */
@keyframes staggerFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.stagger-item {
    animation: staggerFadeIn 0.5s ease-out;
    animation-fill-mode: both;
}

.stagger-item:nth-child(1) { animation-delay: 0.05s; }
.stagger-item:nth-child(2) { animation-delay: 0.1s; }
.stagger-item:nth-child(3) { animation-delay: 0.15s; }
.stagger-item:nth-child(4) { animation-delay: 0.2s; }
.stagger-item:nth-child(5) { animation-delay: 0.25s; }
.stagger-item:nth-child(6) { animation-delay: 0.3s; }
.stagger-item:nth-child(7) { animation-delay: 0.35s; }
.stagger-item:nth-child(8) { animation-delay: 0.4s; }

/* Loading Spinner */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.spinner {
    border: 3px solid var(--border);
    border-top-color: var(--primary-500);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    animation: spin 0.8s linear infinite;
}

/* Skeleton Loading */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--surface-card) 0%,
        var(--surface-hover) 50%,
        var(--surface-card) 100%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* ===== Schedule Page Styles ===== */
.schedule-container {
    padding: var(--spacing-lg);
}

.schedule-view-toggle {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    background: var(--surface-card);
    padding: var(--spacing-xs);
    border-radius: var(--radius-lg);
    width: fit-content;
}

.view-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: none;
    color: var(--text-muted);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.875rem;
}

.view-btn:hover {
    color: var(--text-primary);
    background: var(--surface-hover);
}

.view-btn.active {
    background: var(--primary-gradient);
    color: white;
}

.schedule-faculty-selector {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--surface-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.schedule-faculty-selector label {
    font-weight: 500;
    color: var(--text-secondary);
}

.schedule-faculty-selector select {
    flex: 1;
    max-width: 400px;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--glass-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
}

/* Timetable Styles */
.schedule-timetable {
    background: var(--surface-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    overflow: hidden;
}

.timetable-header {
    display: grid;
    grid-template-columns: 80px repeat(6, 1fr);
    background: rgba(102, 126, 234, 0.1);
    border-bottom: 1px solid var(--border);
}

.time-column,
.day-column {
    padding: var(--spacing-md);
    text-align: center;
    font-weight: 600;
    color: var(--text-primary);
    border-right: 1px solid var(--border);
}

.day-column:last-child {
    border-right: none;
}

.timetable-body {
    max-height: 600px;
    overflow-y: auto;
}

.timetable-row {
    display: grid;
    grid-template-columns: 80px repeat(6, 1fr);
    border-bottom: 1px solid var(--border-light);
}

.timetable-row:last-child {
    border-bottom: none;
}

.timetable-time {
    padding: var(--spacing-sm);
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-muted);
    background: rgba(15, 18, 29, 0.3);
    border-right: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60px;
}

.timetable-cell {
    padding: var(--spacing-xs);
    border-right: 1px solid var(--border-light);
    min-height: 60px;
    position: relative;
}

.timetable-cell:last-child {
    border-right: none;
}

.schedule-block {
    background: var(--primary-gradient);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    font-size: 0.75rem;
    color: white;
    height: 100%;
    cursor: pointer;
    transition: all 0.2s ease;
    overflow: hidden;
}

.schedule-block:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.schedule-block .course-code {
    font-weight: 700;
    font-size: 0.8rem;
    margin-bottom: 2px;
}

.schedule-block .course-name {
    font-size: 0.7rem;
    opacity: 0.9;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.schedule-block .room-info {
    font-size: 0.65rem;
    opacity: 0.8;
    margin-top: 4px;
}

.schedule-block.lecture { background: var(--primary-gradient); }
.schedule-block.laboratory { background: var(--success-gradient); }
.schedule-block.tutorial { background: var(--info-gradient); }
.schedule-block.consultation { background: var(--warning-gradient); }

/* Schedule List View */
.schedule-list {
    background: var(--surface-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    overflow: hidden;
}

.schedule-list .data-table {
    margin: 0;
}

/* Schedule Summary */
.schedule-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.summary-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--surface-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
}

.summary-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    border-radius: var(--radius-lg);
    color: white;
}

.summary-content {
    display: flex;
    flex-direction: column;
}

.summary-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

.summary-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ===== Profile Page Styles ===== */
.profile-container {
    padding: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.profile-header-card {
    display: flex;
    gap: var(--spacing-xl);
    padding: var(--spacing-xl);
    background: var(--surface-card);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border);
    margin-bottom: var(--spacing-xl);
}

.profile-avatar-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.profile-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    position: relative;
    overflow: hidden;
}

.profile-avatar span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.profile-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
}

.profile-header-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.profile-header-info h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.profile-title {
    font-size: 1.125rem;
    color: var(--primary-500);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.profile-department {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.profile-badges {
    display: flex;
    gap: var(--spacing-sm);
}

.badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-primary {
    background: rgba(102, 126, 234, 0.2);
    color: var(--primary-400);
}

.badge-success {
    background: rgba(16, 185, 129, 0.2);
    color: var(--green-400);
}

/* Profile Tabs */
.profile-tabs {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
    background: var(--surface-card);
    padding: var(--spacing-xs);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.profile-tab {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: transparent;
    border: none;
    color: var(--text-muted);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.9rem;
    font-weight: 500;
}

.profile-tab:hover {
    color: var(--text-primary);
    background: var(--surface-hover);
}

.profile-tab.active {
    background: var(--primary-gradient);
    color: white;
}

.profile-tab-content {
    display: none;
}

.profile-tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

.profile-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.profile-section {
    background: var(--surface-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    padding: var(--spacing-lg);
}

.profile-section h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-400);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.info-item.full-width {
    grid-column: 1 / -1;
}

.info-item label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.info-item span {
    font-size: 0.95rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* Education & Certification Lists */
.education-list,
.certifications-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.education-card,
.certification-card {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--surface-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    transition: all 0.2s ease;
}

.education-card:hover,
.certification-card:hover {
    border-color: var(--primary-500);
    transform: translateY(-2px);
}

.education-icon,
.certification-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    border-radius: var(--radius-lg);
    color: white;
    flex-shrink: 0;
}

.education-info,
.certification-info {
    flex: 1;
}

.education-info h4,
.certification-info h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.education-info p,
.certification-info p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.education-meta,
.certification-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ===== SALN Page Styles ===== */
.saln-container {
    padding: var(--spacing-lg);
}

.saln-records {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.saln-card {
    background: var(--surface-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: all 0.2s ease;
}

.saln-card:hover {
    border-color: var(--primary-500);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.15);
}

.saln-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.saln-year {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.saln-status {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

.saln-status.draft {
    background: rgba(148, 163, 184, 0.2);
    color: var(--gray-400);
}

.saln-status.submitted {
    background: rgba(59, 130, 246, 0.2);
    color: var(--blue-400);
}

.saln-status.reviewed {
    background: rgba(245, 158, 11, 0.2);
    color: var(--orange-400);
}

.saln-status.approved {
    background: rgba(16, 185, 129, 0.2);
    color: var(--green-400);
}

.saln-status.returned {
    background: rgba(236, 72, 153, 0.2);
    color: var(--pink-400);
}

.saln-card-body {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.saln-stat {
    text-align: center;
}

.saln-stat-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.saln-stat-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.saln-stat-value.positive {
    color: var(--green-400);
}

.saln-stat-value.negative {
    color: var(--pink-400);
}

.saln-card-footer {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border);
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* SALN Detail View */
.saln-detail {
    animation: fadeIn 0.3s ease;
}

.saln-detail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.saln-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.saln-summary-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.saln-summary-card {
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
}

.saln-summary-card.assets {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(56, 239, 125, 0.1) 100%);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.saln-summary-card.liabilities {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.15) 0%, rgba(254, 225, 64, 0.1) 100%);
    border: 1px solid rgba(236, 72, 153, 0.3);
}

.saln-summary-card.networth {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15) 0%, rgba(118, 75, 162, 0.1) 100%);
    border: 1px solid rgba(102, 126, 234, 0.3);
}

.saln-summary-card .summary-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.saln-summary-card .summary-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

.saln-summary-card.assets .summary-value {
    color: var(--green-400);
}

.saln-summary-card.liabilities .summary-value {
    color: var(--pink-400);
}

.saln-summary-card.networth .summary-value {
    color: var(--primary-400);
}

/* SALN Sections */
.saln-sections {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.saln-section {
    background: var(--surface-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    overflow: hidden;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(102, 126, 234, 0.1);
    border-bottom: 1px solid var(--border);
}

.section-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.saln-table-wrapper {
    overflow-x: auto;
}

.saln-table {
    width: 100%;
    border-collapse: collapse;
}

.saln-table th,
.saln-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

.saln-table th {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: rgba(15, 18, 29, 0.3);
}

.saln-table td {
    font-size: 0.9rem;
    color: var(--text-primary);
}

.saln-table tbody tr:hover {
    background: var(--surface-hover);
}

.saln-table .actions {
    display: flex;
    gap: var(--spacing-xs);
}

.saln-table .action-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
}

.saln-table .action-btn:hover {
    background: var(--surface-hover);
    border-color: var(--primary-500);
    color: var(--primary-400);
}

.saln-table .action-btn.delete:hover {
    border-color: var(--pink-500);
    color: var(--pink-400);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-muted);
}

.empty-state svg {
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-state h4 {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    font-size: 0.875rem;
}

/* Form Select Styling */
.form-select {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--glass-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    min-width: 150px;
}

.form-select:focus {
    outline: none;
    border-color: var(--primary-500);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .schedule-view-toggle {
        width: 100%;
    }
    
    .view-btn {
        flex: 1;
        justify-content: center;
    }
    
    .timetable-header,
    .timetable-row {
        grid-template-columns: 60px repeat(6, 1fr);
    }
    
    .profile-header-card {
        flex-direction: column;
        text-align: center;
    }
    
    .profile-badges {
        justify-content: center;
    }
    
    .profile-tabs {
        flex-wrap: wrap;
    }
    
    .saln-summary-cards {
        grid-template-columns: 1fr;
    }
    
    .saln-records {
        grid-template-columns: 1fr;
    }
}

/* ===== Enhanced Mobile Responsiveness ===== */

/* Small tablets and large phones */
@media (max-width: 768px) {
    :root {
        --spacing-lg: 1rem;
        --spacing-xl: 1.5rem;
    }
    
    /* Sidebar overlay mode on mobile */
    .sidebar {
        position: fixed;
        left: -280px;
        width: 280px;
        z-index: 1001;
        transition: left var(--transition-base);
        box-shadow: none;
    }
    
    .sidebar.mobile-open {
        left: 0;
        box-shadow: 0 0 50px rgba(0, 0, 0, 0.5);
    }
    
    .sidebar-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1000;
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }
    
    .sidebar-overlay.active {
        opacity: 1;
        visibility: visible;
    }
    
    .main-content {
        margin-left: 0;
        padding: var(--spacing-md);
    }
    
    /* Show all sidebar items when open on mobile */
    .sidebar.mobile-open .logo h1,
    .sidebar.mobile-open .nav-item span,
    .sidebar.mobile-open .user-info {
        display: block;
    }
    
    /* Mobile menu toggle button */
    .mobile-menu-btn {
        display: flex;
        position: fixed;
        bottom: 20px;
        right: 20px;
        width: 56px;
        height: 56px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
        color: white;
        border: none;
        box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
        z-index: 999;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: all var(--transition-fast);
    }
    
    .mobile-menu-btn:hover {
        transform: scale(1.1);
    }
    
    /* Page header adjustments */
    .page-header {
        gap: var(--spacing-md);
    }
    
    .page-header h2 {
        font-size: 1.5rem;
    }
    
    .page-header p {
        font-size: 0.875rem;
    }
    
    .header-actions {
        gap: var(--spacing-sm);
    }
    
    .header-actions .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.875rem;
    }
    
    /* Stats cards */
    .stat-card {
        padding: var(--spacing-md);
    }
    
    .stat-value {
        font-size: 1.75rem;
    }
    
    /* Tables - horizontal scroll with visual hint */
    .workload-table-container {
        position: relative;
        margin: 0 calc(var(--spacing-md) * -1);
        padding: 0 var(--spacing-md);
    }
    
    .workload-table-container::after {
        content: '';
        position: absolute;
        right: 0;
        top: 0;
        bottom: 0;
        width: 30px;
        background: linear-gradient(90deg, transparent, var(--glass-bg));
        pointer-events: none;
    }
    
    /* Table cells */
    .workload-table th,
    .workload-table td {
        padding: var(--spacing-sm);
        font-size: 0.8rem;
        white-space: nowrap;
    }
    
    /* Cards */
    .faculty-card,
    .report-card {
        padding: var(--spacing-md);
    }
    
    /* Modal full screen on mobile */
    .modal-content {
        width: 100%;
        max-width: 100%;
        height: 100%;
        max-height: 100%;
        border-radius: 0;
        margin: 0;
    }
    
    .modal-body {
        max-height: calc(100vh - 140px);
    }
    
    /* Form elements - larger touch targets */
    .form-input,
    .form-select,
    .form-textarea {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 16px; /* Prevents zoom on iOS */
        min-height: 48px;
    }
    
    /* Buttons - larger touch targets */
    .btn {
        min-height: 44px;
        padding: var(--spacing-sm) var(--spacing-lg);
    }
    
    /* Charts */
    .chart-container {
        height: 250px;
    }
    
    /* Calendar */
    .calendar-grid {
        font-size: 0.75rem;
    }
    
    .calendar-day {
        min-height: 60px;
        padding: var(--spacing-xs);
    }
    
    .calendar-event {
        font-size: 0.65rem;
        padding: 2px 4px;
    }
    
    /* Timetable - scroll horizontally */
    .timetable-container {
        overflow-x: auto;
        margin: 0 calc(var(--spacing-md) * -1);
        padding: 0 var(--spacing-md);
    }
    
    .timetable {
        min-width: 700px;
    }
    
    /* Profile sections */
    .profile-info-grid {
        grid-template-columns: 1fr;
    }
    
    /* Edit modal tabs */
    .edit-profile-tabs {
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
    
    .edit-profile-tabs::-webkit-scrollbar {
        display: none;
    }
    
    .edit-profile-tab {
        flex-shrink: 0;
        white-space: nowrap;
    }
    
    /* Report cards - 2 columns on tablet */
    .reports-grid {
        grid-template-columns: 1fr;
    }
    
    .report-actions {
        flex-direction: column;
    }
    
    .report-actions .btn {
        width: 100%;
    }
}

/* Extra small devices (phones) */
@media (max-width: 480px) {
    :root {
        --spacing-md: 0.75rem;
        --spacing-lg: 1rem;
    }
    
    .page-header h2 {
        font-size: 1.25rem;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.75rem;
    }
    
    /* Stack buttons vertically */
    .header-actions {
        flex-direction: column;
    }
    
    .header-actions .btn {
        width: 100%;
    }
    
    /* Modal actions */
    .modal-footer {
        flex-direction: column-reverse;
        gap: var(--spacing-sm);
    }
    
    .modal-footer .btn {
        width: 100%;
    }
    
    /* Calendar - compact view */
    .calendar-header {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .calendar-day {
        min-height: 50px;
    }
    
    /* Hide day names, show only first letter */
    .calendar-grid .calendar-day-header {
        font-size: 0.7rem;
    }
    
    /* User info compact */
    .user-section {
        padding: var(--spacing-sm);
    }
    
    /* Login form */
    .login-card {
        padding: var(--spacing-lg);
        margin: var(--spacing-md);
    }
    
    .login-title {
        font-size: 1.5rem;
    }
    
    /* Profile photo smaller */
    .profile-photo-container {
        width: 100px;
        height: 100px;
    }
    
    /* Stats grid - single column */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    /* Analytics numbers */
    .analytics-card h3 {
        font-size: 1.5rem;
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    /* Larger touch targets */
    .nav-item {
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .btn {
        min-height: 48px;
    }
    
    /* Remove hover effects that don't apply to touch */
    .faculty-card:hover,
    .report-card:hover,
    .stat-card:hover {
        transform: none;
    }
    
    /* Add active states instead */
    .btn:active {
        transform: scale(0.98);
    }
    
    .faculty-card:active,
    .report-card:active {
        transform: scale(0.99);
        background: rgba(255, 255, 255, 0.08);
    }
    
    /* Scrollable areas - better momentum */
    .modal-body,
    .workload-table-container {
        -webkit-overflow-scrolling: touch;
    }
}

/* Landscape phone orientation */
@media (max-height: 500px) and (orientation: landscape) {
    .modal-content {
        max-height: 100vh;
    }
    
    .modal-body {
        max-height: calc(100vh - 120px);
    }
    
    .login-card {
        padding: var(--spacing-md);
    }
    
    .login-form {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-md);
    }
}

/* Print styles */
@media print {
    /* Hide non-printable elements */
    .sidebar,
    .mobile-menu-btn,
    .modal,
    .login-screen,
    .schedule-view-toggle,
    .schedule-faculty-selector,
    .sidebar-overlay {
        display: none !important;
    }
    
    /* Show print button only when explicitly printing full page */
    .header-actions .btn:not(.print-visible) {
        display: none !important;
    }
    
    /* Reset layout */
    .main-content {
        margin-left: 0;
        padding: 0;
        width: 100%;
    }
    
    /* Hide inactive pages */
    .page:not(.active) {
        display: none !important;
    }
    
    .page.active {
        display: block !important;
    }
    
    .page {
        break-inside: avoid;
    }
    
    /* Base styles */
    body {
        background: white !important;
        color: black !important;
        font-size: 12pt;
        line-height: 1.4;
    }
    
    /* Cards and containers */
    .glass-card,
    .timetable-container,
    .schedule-list {
        background: white !important;
        border: 1px solid #ccc !important;
        box-shadow: none !important;
        backdrop-filter: none !important;
    }
    
    /* Page header for print */
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        border-bottom: 2px solid #8b5cf6;
        padding-bottom: 15px;
        margin-bottom: 20px;
    }
    
    .page-header h2 {
        color: #8b5cf6 !important;
        font-size: 18pt;
    }
    
    /* Timetable print styles */
    .timetable {
        width: 100%;
        border-collapse: collapse;
    }
    
    .timetable-header,
    .timetable-row {
        display: grid;
        grid-template-columns: 80px repeat(6, 1fr);
    }
    
    .timetable-cell {
        border: 1px solid #ccc !important;
        background: white !important;
        padding: 8px !important;
        min-height: 60px;
        font-size: 9pt;
    }
    
    .timetable-header .timetable-cell {
        background: #8b5cf6 !important;
        color: white !important;
        font-weight: bold;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
    
    .timetable-event {
        background: #f3f4f6 !important;
        border-left: 3px solid #8b5cf6 !important;
        padding: 4px !important;
        margin: 2px 0 !important;
        font-size: 8pt;
        color: black !important;
    }
    
    .timetable-event strong {
        display: block;
        color: #1f2937 !important;
    }
    
    .timetable-event small {
        color: #6b7280 !important;
    }
    
    /* Schedule list print styles */
    .schedule-card {
        background: white !important;
        border: 1px solid #ddd !important;
        box-shadow: none !important;
        page-break-inside: avoid;
        margin-bottom: 10px;
    }
    
    .schedule-card-header {
        border-bottom: 1px solid #ddd;
        background: #f9fafb !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
    
    /* Faculty info in schedule */
    .schedule-card h4 {
        color: #1f2937 !important;
    }
    
    /* Print-specific header */
    .print-header {
        display: block !important;
        text-align: center;
        margin-bottom: 20px;
        padding-bottom: 15px;
        border-bottom: 2px solid #8b5cf6;
    }
    
    .print-header h1 {
        font-size: 20pt;
        color: #8b5cf6;
        margin: 0;
    }
    
    .print-header p {
        color: #6b7280;
        margin: 5px 0 0 0;
    }
    
    /* Print footer */
    .print-footer {
        display: block !important;
        text-align: center;
        margin-top: 30px;
        padding-top: 15px;
        border-top: 1px solid #ddd;
        font-size: 9pt;
        color: #6b7280;
    }
    
    /* Page breaks */
    .schedule-container {
        page-break-before: avoid;
    }
    
    /* Links */
    a {
        color: black !important;
        text-decoration: none !important;
    }
}

/* Print header/footer (hidden by default, shown only in print) */
.print-header,
.print-footer {
    display: none;
}