/* Base styles */
:root {
    --primary-dark: #1e293b;
    --primary-light: #334155;
    --accent-primary: #3b82f6;
    --accent-secondary: #8b5cf6;
    --accent-success: #10b981;
    --accent-warning: #f59e0b;
    --accent-rose: #f43f5e;
    --accent-emerald: #059669;
    --accent-amber: #d97706;
    --link: #2563eb;
    --link-hover: #1d4ed8;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --bg-page: #f8fafc;
    --bg-card: #ffffff;
    --bg-subtle: #f1f5f9;
    --border-light: #e2e8f0;
    --border-default: #cbd5e1;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-page);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

ul {
    list-style: disc;
    list-style-position: outside;
    padding-left: 1.25rem;
    margin: 0.75rem 0;
}

ul ul {
    padding-left: 1rem;
}

/* Skip to content for accessibility */
.skip-to-content {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--accent-primary);
    color: white;
    padding: 0.5rem 1rem;
    text-decoration: none;
    border-radius: var(--radius-sm);
    z-index: 100;
    transition: top var(--transition-fast);
}

.skip-to-content:focus {
    top: 0.5rem;
    left: 0.5rem;
    outline: 2px solid white;
}

.container-wide {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 1rem;
}

/* Header */
header {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%);
    color: white;
    padding-top: 1rem;
    position: relative;
    box-shadow: var(--shadow-md);
}

header .header-content {
    display: flex;
    align-items: center;
    justify-content: left;
    gap: 2rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.main-nav {
    display: flex;
    gap: 0.5rem;
}

.main-nav a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: white;
    transition: all var(--transition-base);
    transform: translateX(-50%);
}

.main-nav a:hover::after {
    width: calc(100% - 2rem);
}

.main-nav a:hover {
    background: rgba(255,255,255,0.15);
    transform: translateY(-1px);
}

.main-nav a.active {
    background: rgba(255,255,255,0.25);
    font-weight: 600;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.main-nav a.active::after {
    width: calc(100% - 2rem);
}

header h1,
.site-title {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    font-weight: 800;
    letter-spacing: -0.025em;
}

header h1 a,
.site-title a {
    color: white;
    text-decoration: none;
}

header h1 a:hover,
.site-title a:hover {
    color: var(--link-hover);
}

.tagline {
    font-size: 1rem;
    opacity: 0.95;
    font-weight: 400;
    letter-spacing: 0.01em;
}

.lang-switch {
    position: absolute;
    top: 0.75rem;
    right: 1rem;
    z-index: 10;
}

.lang-switch a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255,255,255,0.3);
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-weight: 500;
    font-size: 0.9rem;
    background: rgba(255,255,255,0.05);
}

.lang-switch a::before {
    content: "🌐";
    font-size: 1rem;
}

.lang-switch a:hover {
    background: rgba(255,255,255,0.15);
    border-color: rgba(255,255,255,0.5);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Main content */
main {
    min-height: calc(100vh - 300px);
    padding: 2rem 0;
}

/* Hero section */
.hero {
    text-align: center;
    padding: 4rem 2rem 3rem;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #ddd6fe 100%);
    border-radius: var(--radius-xl);
    margin-bottom: 3rem;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%233b82f6' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.4;
    z-index: 0;
}

.hero > * {
    position: relative;
    z-index: 1;
}

.hero h2 {
    font-size: 2.75rem;
    color: var(--primary-dark);
    margin-bottom: 1rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    line-height: 1.2;
    text-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 650px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    font-weight: 600;
    color: var(--primary-dark);
    transition: all var(--transition-slow);
}

.hero-feature:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-primary);
}

.hero-icon {
    font-size: 1.5rem;
}

/* Random Idiom Button */
.random-idiom-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
    margin-top: 1rem;
}

.random-idiom-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

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

.random-idiom-btn svg {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-base);
}

.random-idiom-btn:hover svg {
    transform: rotate(180deg);
}

.random-idiom-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.random-idiom-btn:disabled:hover {
    transform: none;
}

.idiom-cards.shuffling {
    pointer-events: none;
    opacity: 0.6;
}

/* Search Box */
.search-box {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

.search-box input {
    width: 100%;
    padding: 1rem 4rem 1rem 1.5rem;
    border: 2px solid var(--border-default);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    background: white;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    color: var(--text-primary);
}

.search-box input::placeholder {
    color: var(--text-tertiary);
}

.search-box input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-lg), 0 0 0 3px rgba(59, 130, 246, 0.1);
    transform: translateY(-1px);
}

.search-box button {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    padding: 0.75rem 1rem;
    background: var(--accent-primary);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-box button:hover {
    background: var(--link-hover);
    transform: translateY(-50%) scale(1.05);
}

.search-box button:active {
    transform: translateY(-50%) scale(0.98);
}

.search-box button:focus-visible {
    outline: 2px solid white;
    outline-offset: 2px;
}

/* Idiom cards */
.idiom-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.idiom-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: all var(--transition-slow);
    min-height: 200px;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.idiom-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.idiom-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.03) 0%, rgba(139, 92, 246, 0.03) 100%);
    opacity: 0;
    transition: opacity var(--transition-slow);
    pointer-events: none;
}

.idiom-card:hover {
    transform: translateY(-4px) scale(1.01);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-primary);
}

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

.idiom-card:hover::after {
    opacity: 1;
}

.idiom-card:active {
    transform: translateY(-2px) scale(1.005);
}

.idiom-card h2,
.idiom-card h3,
.idiom-card h4 {
    color: var(--primary-dark);
    margin-bottom: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.01em;
    position: relative;
    z-index: 1;
}

.idiom-card h2 a,
.idiom-card h3 a,
.idiom-card h4 a {
    color: var(--primary-dark);
    text-decoration: none;
    transition: color var(--transition-base);
}

.idiom-card:hover h2 a,
.idiom-card:hover h3 a,
.idiom-card:hover h4 a {
    color: var(--accent-primary);
}

.category {
    display: inline-block;
    background-color: #3498db;
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.idiom-preview {
    color: var(--text-secondary);
    margin: 1rem 0 0 0;
    font-size: 1rem;
    flex-grow: 1;
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

.read-more {
    color: var(--link);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
    display: block;
    height: 100%;
}

.read-more:hover {
    color: var(--link-hover);
    text-decoration: none;
}

/* Loading state for cards */
.idiom-cards.loading {
    position: relative;
    min-height: 400px;
}

.idiom-cards.loading::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    border: 3px solid var(--border-light);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

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

.idiom-card {
    animation: fadeIn 0.4s ease-out backwards;
}

.idiom-card:nth-child(1) { animation-delay: 0.05s; }
.idiom-card:nth-child(2) { animation-delay: 0.1s; }
.idiom-card:nth-child(3) { animation-delay: 0.15s; }
.idiom-card:nth-child(4) { animation-delay: 0.05s; }
.idiom-card:nth-child(5) { animation-delay: 0.1s; }
.idiom-card:nth-child(6) { animation-delay: 0.15s; }
.idiom-card:nth-child(7) { animation-delay: 0.05s; }
.idiom-card:nth-child(8) { animation-delay: 0.1s; }
.idiom-card:nth-child(9) { animation-delay: 0.15s; }

/* Single idiom page */
.idiom-detail {
    position: relative;
    overflow: hidden;
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
}

.idiom-hero {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    padding-bottom: 1rem;
}

.idiom-hero .eyebrow {
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 0.8rem;
    color: #6c7a89;
    font-weight: 700;
}

.idiom-hero h2 {
    margin: 0;
    font-size: 2.25rem;
    color: var(--primary-dark);
    padding-left: 0;
    font-weight: 800;
    letter-spacing: -0.025em;
    line-height: 1.2;
}

.meta-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    padding-bottom: 0.5rem;
}

.meta-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    border-radius: 999px;
    background: white;
    border: 1px solid var(--border-light);
    color: var(--primary-dark);
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.meta-region {
    background: linear-gradient(135deg, #f0fdfa 0%, #ccfbf1 100%);
    border-color: #99f6e4;
}

.meta-difficulty {
    background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
    border-color: #fed7aa;
}

.chip-icon {
    font-size: 1.1rem;
    line-height: 1;
}

.meta-chip strong {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 0.01em;
    margin-right: -0.1rem;
}

.idiom-detail .content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.lead-card {
    background: linear-gradient(135deg, #f8fafc 0%, #eff6ff 100%);
    border: 1px solid var(--accent-primary);
    border-left-width: 6px;
    border-radius: var(--radius-lg);
    padding: 1rem;
    box-shadow: var(--shadow-md);
}

.section-label {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.5rem;
}

.section-icon {
    font-size: 1.2rem;
    line-height: 1;
}

.attribute.highlight strong {
    margin: 0;
    font-size: 1rem;
    letter-spacing: 0.02em;
    color: var(--accent-primary);
    text-transform: uppercase;
}

.attribute.highlight p {
    margin: 0.5rem 0 0;
    color: var(--primary-dark);
    font-weight: 700;
    font-size: 1.2rem;
    line-height: 1.5;
}

.attribute.highlight.subtle p {
    font-weight: 500;
    color: #344154;
}

.attribute-grid {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.attribute-card-block {
    background: white;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 0.5rem;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.attribute-card-block strong {
    font-size: 0.95rem;
    color: var(--text-secondary);
    letter-spacing: 0.01em;
    text-transform: uppercase;
    font-weight: 700;
}

.attribute-card-block p {
    margin: 0.75rem 0 0;
    color: var(--text-primary);
    line-height: 1.8;
    background: none;
    border: none;
    padding: 0;
}

.examples-card .examples-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.examples-card .examples-list li {
    background: var(--bg-subtle);
    border: 1px solid var(--border-light);
    border-left: 4px solid var(--accent-warning);
    border-radius: var(--radius-md);
    padding: 0.5rem;
}

.examples-card .example {
    font-weight: 700;
    color: var(--primary-dark);
    font-size: 1.1rem;
}

.examples-card .example-translation {
    color: var(--text-secondary);
    padding-top: 0.5rem;
}

.chip-list {
    list-style: none;
    padding: 0;
    margin: 0.75rem 0 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.chip-list li {
    /* background: var(--bg-subtle);
    border: 1px solid var(--border-light);
    border-radius: 999px; */
    padding: 0.25rem 0.75rem;
    color: var(--primary-dark);
    font-weight: 500;
}

.idiom-footer {
    background: var(--bg-card);
    border-top: 1px solid #e5e9f2;
    margin-top: 2rem;
    padding-top: 1.25rem;
    padding-bottom: 0.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.back-link {
    display: inline-flex;
    align-items: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
    font-weight: 500;
    padding: 0.65rem 1.25rem;
    border-radius: var(--radius-md);
    background: var(--bg-subtle);
    border: 1px solid var(--border-light);
    font-size: 0.95rem;
}

.back-link::before {
    content: "←";
    margin-right: 0.6rem;
    transition: transform 0.2s ease;
    font-size: 1.1rem;
}

.back-link:hover {
    color: var(--accent-primary);
    background: var(--bg-card);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-sm);
    text-decoration: none;
    transform: translateX(-2px);
}

.back-link:hover::before {
    transform: translateX(-4px);
}

.top-back {
    margin-bottom: 1.5rem;
}

.back-to-top {
    color: #64748b;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all .2s ease;
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    background: var(--bg-subtle);
    border: 1px solid transparent;
}

.back-to-top:hover {
    color: var(--accent-primary);
    background: white;
    border-color: var(--border-light);
    transform: translateY(-2px);
}

.back-to-top:hover {
    color: var(--link);
    background: #f8fafc;
    transform: translateY(-2px);
}

/* List page */

/* No content */
.no-content {
    background: var(--bg-card);
    padding: 3rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
}

.no-content ol {
    margin: 1rem 0 0 2rem;
}

.no-content li {
    margin: 0.5rem 0;
}

.no-content code {
    background: #f4f4f4;
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
}

/* Recent idioms section */
.recent-idioms {
    margin-top: 2rem;
}

.recent-idioms h3 {
    color: var(--primary-dark);
    font-size: 2rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    text-align: center;
}

.recent-idioms h3::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    margin: 1rem auto 0;
    border-radius: 2px;
}

.view-all {
    display: inline-flex;
    align-items: center;
    margin-top: 1.5rem;
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.2s ease;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    border: 1px solid var(--accent-primary);
}

.view-all::after {
    content: "→";
    margin-left: 0.5rem;
    transition: transform 0.2s ease;
}

.view-all:hover {
    color: white;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    text-decoration: none;
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.view-all:hover::after {
    transform: translateX(4px);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    list-style: none;
    padding: 0;
    margin: 3rem 0;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.page-item {
    display: inline-block;
}

.page-link {
    display: block;
    padding: 0.65rem 1.25rem;
    color: var(--accent-primary);
    text-decoration: none;
    background-color: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    font-weight: 500;
}

.page-link:hover {
    background-color: var(--bg-subtle);
    border-color: var(--accent-primary);
    color: var(--link-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.page-item.active .page-link {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
}

.page-item.disabled .page-link {
    color: var(--text-tertiary);
    pointer-events: none;
    background-color: var(--bg-subtle);
    border-color: var(--border-light);
}

/* Footer */
footer {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%);
    color: white;
    text-align: center;
    padding: 3rem 0;
    margin-top: 4rem;
    box-shadow: var(--shadow-lg);
}

.footer-nav {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 0.75rem;
}

.footer-nav a {
    color: white;
    text-decoration: none;
    transition: all 0.2s ease;
    opacity: 0.9;
}

.footer-nav a:hover {
    color: white;
    opacity: 1;
    transform: translateY(-2px);
}

/* Responsive */
@media (max-width: 768px) {
    header .header-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .header-actions {
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .main-nav {
        width: 100%;
        justify-content: flex-start;
    }
    
    .main-nav a {
        padding: 0.625rem 1.25rem;
        font-size: 1rem;
        min-height: 44px;
        display: inline-flex;
        align-items: center;
    }

    header h1,
    .site-title {
        font-size: 1.5rem;
    }
    
    .hero {
        padding: 2.5rem 1.5rem;
    }
    
    .hero h2 {
        font-size: 1.875rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .hero-features {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .hero-feature {
        justify-content: center;
        padding: 1rem 1.5rem;
        min-height: 44px;
    }
    
    .search-box input {
        padding: 0.875rem 3.5rem 0.875rem 1rem;
        font-size: 0.95rem;
        min-height: 48px;
    }
    
    .search-box button {
        min-width: 44px;
        min-height: 44px;
    }
    
    .random-idiom-btn {
        min-height: 48px;
        width: 100%;
        justify-content: center;
    }
    
    .recent-idioms h3 {
        font-size: 1.75rem;
    }
    
    .idiom-cards {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .idiom-card {
        min-height: auto;
        padding: 1rem;
    }
    
    .idiom-detail {
        padding: 0.5rem;
    }
    
    .idiom-hero h2 {
        font-size: 1.75rem;
        padding-left: 0.5rem;
    }
    
    .meta-chips {
        gap: 0.5rem;
    }
    
    .meta-chip {
        font-size: 0.85rem;
        padding: 0.35rem 0.85rem;
    }
    
    .pagination {
        gap: 0.35rem;
    }
    
    .page-link {
        padding: 0.625rem 1rem;
        font-size: 0.9rem;
        min-height: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
    
    .back-link {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
    
    .view-all {
        width: 100%;
        min-height: 48px;
        justify-content: center;
    }
}

/* Accessibility improvements */
*:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Print styles */
@media print {
    header,
    footer,
    .lang-switch,
    .main-nav,
    .back-link,
    .view-all,
    .pagination {
        display: none;
    }
    
    body {
        background: white;
    }
    
    .idiom-card,
    .idiom-detail {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* Hide all cards on home page during initial load to prevent flash of content */
.home .idiom-cards a.read-more {
    display: none;
}

/* Show cards that are explicitly marked as visible after randomization */
.home .idiom-cards a.read-more.visible {
    display: block;
}

/* Ensure hidden attribute works for random selection */
.idiom-cards a[hidden],
.idiom-cards a.read-more[hidden] {
    display: none !important;
}

/* Filtered flagged idioms — hide flagged ones by default */
.idiom-card.flagged-idiom {
    display: none !important;
}

/* When the global flag is set, show them again */
body.show-flagged .idiom-card.flagged-idiom {
    display: block !important; /* override grid item hidden */
}

/* Filter toggle in header */
.flagged-filter {
    margin-left: 1rem;
    display: inline-flex;
    align-items: center;
}
.filter-label {
    display:inline-flex;
    gap: 0.5rem;
    align-items: center;
    color: white;
}
.filter-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
}

/* Flagged badge */
.flagged-badge {
    display: inline-block;
    margin-left: 0.5rem;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    background-color: #e67e22;
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
}