/**
 * Main stylesheet for TutorAide application
 * Contains common styles used across all pages
 */

/* Global Styles */
:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --border-radius: 0.375rem;
    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --transition: all 0.15s ease-in-out;
    --navbar-height: 64px; /* Offset for fixed-top navbar */
}

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #f8f9fa;
    /* Ensure content clears the fixed navbar */
    padding-top: var(--navbar-height);
}

/* Card Enhancements */
.card {
    border: none;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.card:hover {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.card-header {
    background-color: var(--light-color);
    border-bottom: 1px solid rgba(0, 0, 0, 0.125);
    font-weight: 500;
}

/* Button Enhancements */
.btn {
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
}

.btn:focus {
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Form Enhancements */
.form-control, .form-select {
    border-radius: var(--border-radius);
    border: 1px solid #ced4da;
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Table Enhancements */
.table {
    margin-bottom: 0;
}

.table th {
    border-top: none;
    font-weight: 600;
    color: var(--dark-color);
    background-color: var(--light-color);
}

.table-responsive {
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* Alert Enhancements */
.alert {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* Badge Enhancements */
.badge {
    font-weight: 500;
    border-radius: var(--border-radius);
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.spinner-border-sm {
    width: 1rem;
    height: 1rem;
}

/* Utility Classes */
.text-truncate-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.text-truncate-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.shadow-sm {
    box-shadow: var(--box-shadow) !important;
}

.border-radius {
    border-radius: var(--border-radius) !important;
}

/* Responsive Utilities */
@media (max-width: 768px) {
    .table-responsive {
        font-size: 0.875rem;
    }

    .btn-sm {
        padding: 0.25rem 0.5rem;
        font-size: 0.75rem;
    }

    .card-body {
        padding: 1rem;
    }
}

/* Print Styles */
@media print {
    .no-print {
        display: none !important;
    }

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

    .btn {
        display: none;
    }
}

/* Accessibility Enhancements */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus Indicators */
.btn:focus,
.form-control:focus,
.form-select:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.slide-in {
    animation: slideIn 0.3s ease-out;
}

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

/* Status Colors */
.status-scheduled { color: var(--warning-color); }
.status-completed { color: var(--success-color); }
.status-cancelled { color: var(--danger-color); }
.status-no-show { color: var(--secondary-color); }
.status-awaiting-confirmation { color: var(--info-color); }

/* Background Status Colors */
.bg-status-scheduled { background-color: var(--warning-color); }
.bg-status-completed { background-color: var(--success-color); }
.bg-status-cancelled { background-color: var(--danger-color); }
.bg-status-no-show { background-color: var(--secondary-color); }
.bg-status-awaiting-confirmation { background-color: var(--info-color); }

/* Toast Container */
#toast-container {
    z-index: 1055;
}

/* Table Scroll Indicator */
.table-scroll-indicator::after {
    content: "Scroll horizontally to see more →";
    display: block;
    text-align: center;
    font-size: 0.875rem;
    color: var(--secondary-color);
    margin-top: 0.5rem;
}

@media (min-width: 768px) {
    .table-scroll-indicator::after {
        display: none;
    }
}

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

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--dark-color);
}