/**
 * Common Styles for Cantonese Medical Handbook
 * Applied across all section pages for consistent UX
 */

/* Base improvements */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
}

/* Better table row styling */
.data-row {
    transition: background-color 0.2s ease;
}

.data-row:hover {
    background-color: #e6f2ff !important;
    cursor: default;
}

/* Improved buttons */
.btn-primary {
    transition: all 0.2s ease;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

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

/* Better focus states for accessibility */
button:focus,
input:focus,
a:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Improved collapse content */
.collapse {
    margin-top: 0.5rem;
}

.collapse .bg-light {
    border-left: 3px solid #667eea;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    .row > div {
        font-size: 0.9rem;
    }

    .data-header {
        font-size: 0.85rem;
    }

    .btn-sm {
        padding: 0.25rem 0.5rem;
        font-size: 0.8rem;
    }

    /* Stack columns on mobile for better readability */
    .data-row .col-3,
    .data-row .col-4 {
        min-width: 100px;
    }
}

/* Loading states */
.loading {
    text-align: center;
    padding: 3rem;
    color: #718096;
}

/* Error states */
.alert {
    border-radius: 8px;
    border: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Page header styling */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem 0;
    margin-bottom: 2rem;
    text-align: center;
}

.page-header h1 {
    margin: 0;
    font-size: 2.5rem;
    font-weight: 700;
}

.page-header p {
    margin: 0.5rem 0 0 0;
    opacity: 0.95;
}

/* Keyboard shortcut hints */
.keyboard-hint {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    z-index: 1000;
    display: none;
    animation: fadeIn 0.3s;
}

.keyboard-hint.show {
    display: block;
}

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

.keyboard-hint kbd {
    background: #4a5568;
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-family: monospace;
    margin: 0 0.2rem;
}

/* Character improvements */
.search-characters {
    font-size: 1.1rem;
    font-weight: 500;
}

/* Print styles */
@media print {
    .navbar,
    .btn,
    .keyboard-hint {
        display: none !important;
    }

    .data-row {
        page-break-inside: avoid;
    }

    body {
        background: white !important;
        color: black !important;
    }
}

/* Accessibility improvements */
.visually-hidden-focusable:focus {
    position: static;
    width: auto;
    height: auto;
    clip: unset;
}

/* Skip to content link */
.skip-to-content {
    position: absolute;
    top: -40px;
    left: 0;
    background: #667eea;
    color: white;
    padding: 0.5rem 1rem;
    text-decoration: none;
    z-index: 100;
}

.skip-to-content:focus {
    top: 0;
}

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

/* Better spacing */
.container-md {
    margin-bottom: 3rem;
}

/* Status messages */
.status-message {
    position: fixed;
    top: 80px;
    right: 20px;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    z-index: 1050;
    animation: slideInRight 0.3s;
}

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

.status-message.success {
    background: #48bb78;
    color: white;
}

.status-message.error {
    background: #f56565;
    color: white;
}

.status-message.info {
    background: #4299e1;
    color: white;
}