/* Mark Attendance Button - Clean, Classy, Modern */
.btn-mark-attendance {
    background: #667eea;
    color: #fff;
    border: none;
    border-radius: 2rem;
    font-weight: 600;
    font-size: 1.1rem;
    padding: 0.75rem 2.5rem;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.12);
    transition: background 0.3s, box-shadow 0.3s, transform 0.2s;
    position: relative;
    overflow: hidden;
}
.btn-mark-attendance:hover, .btn-mark-attendance:focus {
    background: #764ba2;
    box-shadow: 0 8px 32px rgba(102, 126, 234, 0.18);
    transform: translateY(-2px) scale(1.03);
    color: #fff;
}
/* Modern & Stylish Enhancements */
.glass-card {
    background: rgba(255, 255, 255, 0.7);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    backdrop-filter: blur(8px);
    border-radius: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.18);
    transition: box-shadow 0.4s cubic-bezier(.25,.8,.25,1), transform 0.4s cubic-bezier(.25,.8,.25,1);
    padding: 1.5rem;
}

.glass-card:hover {
    box-shadow: 0 16px 40px 0 rgba(31, 38, 135, 0.25);
    transform: translateY(-4px) scale(1.02);
}

.animated-btn {
    position: relative;
    overflow: hidden;
    transition: background 0.3s, color 0.3s, box-shadow 0.3s;
    box-shadow: 0 2px 8px rgba(13, 110, 253, 0.08);
}
.animated-btn::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 0;
    height: 0;
    background: rgba(13,110,253,0.1);
    border-radius: 100%;
    transform: translate(-50%, -50%);
    transition: width 0.4s cubic-bezier(.25,.8,.25,1), height 0.4s cubic-bezier(.25,.8,.25,1);
    z-index: 0;
}
.animated-btn:hover::after {
    width: 200%;
    height: 500%;
}
.animated-btn span {
    position: relative;
    z-index: 1;
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: #212529;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 8px rgba(0,0,0,0.08);
    animation: fadeIn 0.8s;
}

.card, .feature-card, .modal-content {
    transition: box-shadow 0.4s cubic-bezier(.25,.8,.25,1), transform 0.4s cubic-bezier(.25,.8,.25,1);
}
.card:hover, .feature-card:hover, .modal-content:hover {
    box-shadow: 0 12px 32px rgba(0,0,0,0.18);
    transform: translateY(-6px) scale(1.01);
}

.navbar {
    box-shadow: 0 2px 12px rgba(0,0,0,0.07);
    transition: box-shadow 0.3s;
}
.navbar.scrolled {
    box-shadow: 0 4px 24px rgba(0,0,0,0.12);
}

.fade-in-delayed {
    animation: fadeIn 0.8s 0.3s backwards;
}
.slide-in-up {
    animation: slideInUp 0.7s cubic-bezier(.25,.8,.25,1);
}
@keyframes slideInUp {
    from { opacity: 0; transform: translateY(60px); }
    to { opacity: 1; transform: translateY(0); }
}

.btn, .form-control, .card, .modal-content {
    border-radius: 0.75rem !important;
}

.btn-primary, .btn-outline-primary {
    box-shadow: 0 2px 8px rgba(13, 110, 253, 0.08);
}

.form-control:focus {
    box-shadow: 0 0 0 0.2rem rgba(13,110,253,0.15);
}

/* Add smooth scrolling */
html {
    scroll-behavior: smooth;
}
/* Classy font for the system */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700&family=Poppins:wght@400;600&display=swap');

body {
    font-family: 'Poppins', 'Playfair Display', Arial, sans-serif;
}
/* AttendX Custom Styles */

:root {
    --primary-color: #0d6efd;
    --success-color: #198754;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #0dcaf0;
    --dark-color: #212529;
    --light-color: #f8f9fa;
}

/* Global Styles */
body {
    background-color: #f8f9fa;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Navigation */
.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    font-weight: 500;
    padding: 0.75rem 1rem;
    border-radius: 0.375rem;
    margin: 0 0.25rem;
    transition: all 0.3s ease;
}

.navbar-nav .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.navbar-nav .nav-link.active {
    background-color: rgba(255, 255, 255, 0.2);
    font-weight: 600;
}

/* Cards */
.card {
    border: none;
    border-radius: 0.75rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.card-header {
    background-color: #fff;
    border-bottom: 1px solid #dee2e6;
    border-radius: 0.75rem 0.75rem 0 0 !important;
    padding: 1.25rem;
}

/* Buttons */
.btn {
    border-radius: 0.5rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(45deg, #0d6efd, #0056b3);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(45deg, #0056b3, #004085);
    transform: translateY(-1px);
}

.btn-success {
    background: linear-gradient(45deg, #198754, #146c43);
    border: none;
}

.btn-success:hover {
    background: linear-gradient(45deg, #146c43, #0f5132);
    transform: translateY(-1px);
}

/* Modern button styles for reports page - unified border color */
.btn-modern {
    background: #fffbe9;
    color: #212529;
    border: 1.5px solid #e0cfae;
    border-radius: 0.75rem;
    font-weight: 600;
    font-size: 1rem;
    padding: 0.5rem 1.5rem;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.08);
    transition: background 0.3s, box-shadow 0.3s, transform 0.2s, color 0.3s;
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}
.btn-modern:hover, .btn-modern:focus {
    background: #fffde4;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.14);
    transform: translateY(-2px) scale(1.03);
    color: #212529;
    border-color: #e0cfae;
}
.btn-modern.btn-success,
.btn-modern.btn-danger,
.btn-modern.btn-warning,
.btn-modern.btn-info {
    border: 1.5px solid #e0cfae;
}
.btn-modern.btn-icon {
    padding: 0.5rem 1rem;
    font-size: 1.2rem;
    border-radius: 0.75rem;
    background: #fffbe9;
    border: 1.5px solid #e0cfae;
}

/* Tables */
.table {
    border-radius: 0.5rem;
    overflow: hidden;
}

.table th {
    background-color: #f8f9fa;
    border-top: none;
    font-weight: 600;
    padding: 1rem 0.75rem;
}

.table td {
    padding: 1rem 0.75rem;
    vertical-align: middle;
}

.table-hover tbody tr:hover {
    background-color: #f5f5f5;
}

/* Badges */
.badge {
    font-size: 0.75rem;
    padding: 0.5rem 0.75rem;
    border-radius: 0.375rem;
}

/* Forms */
.form-control, .form-select {
    border-radius: 0.5rem;
    border: 1px solid #ced4da;
    padding: 0.75rem;
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

/* Modals */
.modal-content {
    border-radius: 0.75rem;
    border: none;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.modal-header {
    border-bottom: 1px solid #dee2e6;
    border-radius: 0.75rem 0.75rem 0 0;
}

.modal-footer {
    border-top: 1px solid #dee2e6;
    border-radius: 0 0 0.75rem 0.75rem;
}

/* Alerts */
.alert {
    border-radius: 0.5rem;
    border: none;
    padding: 1rem 1.25rem;
}

.alert-success {
    background: linear-gradient(45deg, #d1e7dd, #a3d2ca);
    color: #0f5132;
}

.alert-danger {
    background: linear-gradient(45deg, #f8d7da, #f1aeb5);
    color: #721c24;
}

.alert-warning {
    background: linear-gradient(45deg, #fff3cd, #ffeaa7);
    color: #664d03;
}

.alert-info {
    background: linear-gradient(45deg, #cff4fc, #9ec5fe);
    color: #055160;
}

/* Stats Cards */
.stats-card {
    background: linear-gradient(45deg, #667eea, #764ba2);
    color: white;
    border-radius: 1rem;
    overflow: hidden;
    position: relative;
}

.stats-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.1);
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

/* Avatar */
.avatar-sm {
    width: 32px;
    height: 32px;
    font-size: 14px;
    font-weight: 600;
}

.avatar-md {
    width: 48px;
    height: 48px;
    font-size: 18px;
    font-weight: 600;
}

.avatar-lg {
    width: 64px;
    height: 64px;
    font-size: 24px;
    font-weight: 600;
}

/* Loading Spinner */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Feature Cards */
.feature-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="1" fill="white" opacity="0.1"/><circle cx="10" cy="60" r="1" fill="white" opacity="0.1"/><circle cx="90" cy="30" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

/* Apps Section Styles */
.apps-section-bg {
    background: url('../images/app-bg.png') center center/cover no-repeat;
    min-height: 350px;
    padding: 60px 0;
    color: #fff;
    position: relative;
}
.apps-section-bg .glass-card {
    background: rgba(255,255,255,0.15);
    border-radius: 1rem;
    box-shadow: 0 4px 32px rgba(0,0,0,0.12);
    color: #fff;
    margin-bottom: 2rem;
}
.apps-section-bg .glass-card .card-title {
    color: #fff;
    margin-bottom: 1.5rem;
}
.apps-section-bg .glass-card .card-text {
    color: #fff;
    margin-bottom: 1.5rem;
}
.apps-section-bg .glass-card .btn-download {
    background: #f98b37;
    color: #fff;
    border: none;
    font-weight: 500;
    padding: 0.5rem 1.5rem;
    border-radius: 2rem;
    box-shadow: 0 2px 8px rgba(249,139,55,0.15);
    transition: background 0.2s;
    margin-top: 0.5rem;
}
.apps-section-bg .glass-card .btn-download:hover {
    background: #d97706;
    color: #fff;
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar-nav .nav-link {
        padding: 0.5rem 0.75rem;
        margin: 0.125rem 0;
    }

    .card-body {
        padding: 1rem;
    }

    .table-responsive {
        font-size: 0.875rem;
    }

    .btn {
        padding: 0.5rem 0.75rem;
        font-size: 0.875rem;
    }
}

/* Print Styles */
@media print {
    .navbar, .btn, .modal, .alert {
        display: none !important;
    }

    .card {
        box-shadow: none;
        border: 1px solid #dee2e6;
    }

    body {
        background: white !important;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #1a1a1a;
        color: #ffffff;
    }

    .card {
        background-color: #2d2d2d;
        color: #ffffff;
    }

    .table th {
        background-color: #3d3d3d;
        color: #ffffff;
    }

    .form-control, .form-select {
        background-color: #3d3d3d;
        border-color: #4d4d4d;
        color: #ffffff;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

.slide-in-right {
    animation: slideInRight 0.5s ease-out;
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(100px); }
    to { opacity: 1; transform: translateX(0); }
}