:root {
    --primary-color: #0066cc;
    --primary-dark: #004a99;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-bg: #f8f9fa;
    --card-shadow: 0 4px 12px rgba(0,0,0,0.06);
    --card-shadow-hover: 0 8px 24px rgba(102, 126, 234, 0.15);
}

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-attachment: fixed;
    min-height: 100vh;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Navbar enhancements */
.navbar {
    background: rgba(102, 126, 234, 0.95) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1rem 0;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.navbar-brand i {
    color: #ffd700;
}

.nav-link {
    font-weight: 500;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 8px;
    margin: 0 0.25rem;
}

.nav-link:hover {
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
    transform: translateY(-1px);
}

.nav-link.active {
    background: rgba(255,255,255,0.3);
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* Main content container */
main.container {
    background: white;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    border: 1px solid rgba(102, 126, 234, 0.08);
    padding: 2rem;
    margin-top: 2rem;
    margin-bottom: 2rem;
    flex: 1;
}

/* Card enhancements */
.card {
    border: none;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    border: 1px solid rgba(102, 126, 234, 0.08);
}

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

.card-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 1rem 1.5rem;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* Schedule cards */
.schedule-card {
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: visible;
}

.schedule-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    border-radius: 10px 10px 0 0;
}

.schedule-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.25);
}

.schedule-card:hover::before {
    height: 5px;
}

.schedule-card .card-body {
    padding-top: 1.75rem;
}

.schedule-card .card-title {
    color: #2d3748;
    font-weight: 600;
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.schedule-card .card-footer {
    border-top: 1px solid rgba(0,0,0,0.05);
    padding: 1rem 1.5rem;
}

/* Buttons */
.btn {
    border-radius: 8px;
    font-weight: 500;
    padding: 0.5rem 1.25rem;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.25s ease;
}

.btn-primary:hover::before {
    opacity: 1;
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.01);
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.4);
}

.btn-primary:active {
    transform: translateY(0) scale(0.99);
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1.1rem;
}

/* Badges */
.badge {
    padding: 0.4rem 0.75rem;
    font-weight: 500;
    border-radius: 6px;
}

/* Tables */
.table {
    border-radius: 8px;
    overflow: hidden;
}

.table thead th {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: none;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    color: #495057;
    padding: 1rem;
}

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

.table tbody tr {
    transition: background 0.2s;
}

.table tbody tr:hover {
    background: rgba(102, 126, 234, 0.05);
}

/* Forms */
.form-control, .form-select {
    border-radius: 6px;
    border: 1px solid #dee2e6;
    padding: 0.6rem 1rem;
    transition: all 0.2s;
}

.form-control:focus, .form-select:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.15);
}

/* Alerts */
.alert {
    border-radius: 8px;
    border: none;
    box-shadow: var(--card-shadow);
    padding: 1rem 1.25rem;
}

.alert-success {
    background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
    color: #2e7d32;
    border-left: 4px solid #4caf50;
}

.alert-danger {
    background: linear-gradient(135deg, #ffebee 0%, #ffcdd2 100%);
    color: #c62828;
    border-left: 4px solid #f44336;
}

.alert-warning {
    background: linear-gradient(135deg, #fff8e1 0%, #ffecb3 100%);
    color: #f57c00;
    border-left: 4px solid #ff9800;
}

.alert-info {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    color: #1565c0;
    border-left: 4px solid #2196f3;
}

/* Toast notifications */
.toast-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 1050;
}

.toast {
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    border: 1px solid rgba(102, 126, 234, 0.1);
    backdrop-filter: blur(10px);
}

/* HTMX indicators */
.htmx-indicator {
    display: none;
}
.htmx-request .htmx-indicator {
    display: inline-block;
}
.htmx-request.htmx-indicator {
    display: inline-block;
}

/* Modals */
.modal-content {
    border-radius: 16px;
    border: none;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
    border: 1px solid rgba(102, 126, 234, 0.1);
}

.modal-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 12px 12px 0 0;
    padding: 1.25rem 1.5rem;
}

.modal-header .btn-close {
    filter: brightness(0) invert(1);
}

.modal-title {
    font-weight: 600;
}

.modal-footer {
    border-top: 1px solid #dee2e6;
    padding: 1rem 1.5rem;
}

/* Footer */
footer {
    background: transparent !important;
    color: rgba(255,255,255,0.9) !important;
}

footer small {
    color: rgba(255,255,255,0.9) !important;
    font-weight: 400;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.5px;
}

h1 {
    color: #2d3748;
    margin-bottom: 1.5rem;
}

/* Stat cards for finance users */
.stat-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--card-shadow);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.9;
    margin-top: 0.5rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    main.container {
        padding: 1rem;
        margin-top: 1rem;
    }
}