body {
    background-color: #F9FAFB;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.navbar-brand {
    color: #4F46E5 !important;
}

.hero-section {
    background: linear-gradient(45deg, #4F46E5, #6366F1);
    padding: 6rem 0;
}

.btn-primary {
    background-color: #4F46E5;
    border-color: #4F46E5;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
}

.btn-primary:hover {
    background-color: #4338CA;
    border-color: #4338CA;
}

.btn-outline-primary {
    border-color: #4F46E5;
    color: #4F46E5;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
}

.btn-outline-primary:hover {
    background-color: #4F46E5;
    color: white;
}

.btn-light {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
}

.card {
    border: none;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    transition: transform 0.2s ease-in-out;
}

.card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    width: 64px;
    height: 64px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: #EEF2FF;
    color: #4F46E5;
    border-radius: 50%;
}

.feature-icon i {
    width: 32px;
    height: 32px;
}

/* Timetable Demo Styles */
.timetable-container {
    padding: 2rem;
    background-color: #fff;
    border-radius: 0.5rem;
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

.timetable-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.timetable-header h1 {
    color: #111827;
}

.timetable-table {
    border-radius: 0.5rem;
    overflow: hidden;
}

.timetable-table th, .timetable-table td {
    text-align: center;
    vertical-align: middle;
    padding: 1rem;
    min-width: 120px;
}

.timetable-table thead th {
    background-color: #EEF2FF;
    color: #4338CA;
    font-weight: bold;
}

.day-header {
    background-color: #F9FAFB;
    font-weight: bold;
    width: 100px;
}

.timetable-cell {
    background-color: #fff;
    transition: background-color 0.2s;
}

.timetable-cell:hover {
    background-color: #F3F4F6;
}

.timetable-cell strong {
    display: block;
    color: #4F46E5;
}

.timetable-cell span {
    font-size: 0.875rem;
    color: #6B7280;
}

.break-cell {
    background-color: #F3F4F6;
    font-style: italic;
    color: #6B7280;
}

@media print {
    body * {
        visibility: hidden;
    }
    .printable-area, .printable-area * {
        visibility: visible;
    }
    .printable-area {
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
    }
    .btn { 
        display: none !important; 
    }
}