@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@700;800;900&family=Inter:wght@400;500;600;700&display=swap');

:root {
    --bg: #0d0d0d;
    --bg-surface: #161616;
    --fg: #e8e4dc;
    --fg-muted: #a09888;
    --accent: #c9a84c;
    --accent-light: #dfc06a;
    --accent-dim: #8a6f2e;
    --border: #2a2520;
    --border-light: #3d362e;
    --found-bg: #1a2e1a;
    --found-border: #3d8c3d;
    --free-bg: #2a2210;
    --free-border: #c9a84c;
    --win-bg: #c9a84c;
    --cell-bg: #1a1816;
    --cell-border: #2a2520;
    --radius: 4px;
    --shadow: 0 2px 12px rgba(0,0,0,0.4);
    --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--fg);
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 12px;
}

/* ── Site Nav ── */
.site-nav {
    width: 100%;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    padding: 0 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    min-height: 48px;
    flex-shrink: 0;
}

.site-nav a {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--fg-muted);
    text-decoration: none;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 14px 0;
    border-bottom: 2px solid transparent;
    transition: color 0.15s, border-color 0.15s;
}

.site-nav a:hover,
.site-nav a.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.site-nav .nav-brand {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 800;
    color: var(--accent);
    letter-spacing: 0.04em;
    text-transform: none;
    border-bottom: none;
}

.site-nav .nav-brand:hover {
    color: var(--accent-light);
}

/* ── Header ── */
.header {
    text-align: center;
    margin-bottom: 8px;
    width: 100%;
    max-width: 420px;
}

.header h1 {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    color: var(--accent);
}

.header .subtitle {
    font-size: 0.9rem;
    color: var(--fg-muted);
    margin-top: 2px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* ── Controls ── */
.controls {
    display: flex;
    gap: 6px;
    flex-wrap: nowrap;
    justify-content: center;
    margin-bottom: 10px;
    width: 100%;
    max-width: 420px;
}

.controls select,
.controls button {
    font-family: var(--font-body);
    font-size: 0.8rem;
    padding: 8px 10px;
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
    background: var(--bg-surface);
    color: var(--fg);
    cursor: pointer;
    min-height: 44px;
    touch-action: manipulation;
    min-width: 0;
    text-align: center;
}

.controls select {
    flex: 1 1 0;
}

.controls button {
    flex: 0 0 44px;
    font-size: 1.1rem;
    padding: 8px 0;
    background: var(--accent);
    color: var(--bg);
    border-color: var(--accent);
    font-weight: 600;
}

.controls button:active {
    opacity: 0.8;
}

/* ── Bingo Grid ── */
.bingo-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 4px;
    width: 100%;
    max-width: 420px;
    aspect-ratio: 1;
}

.bingo-cell {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: 0.7rem;
    font-weight: 600;
    line-height: 1.15;
    padding: 4px;
    border: 2px solid var(--cell-border);
    border-radius: var(--radius);
    background: var(--cell-bg);
    color: var(--fg);
    cursor: pointer;
    word-break: break-word;
    hyphens: auto;
    transition: background 0.15s, border-color 0.15s, transform 0.1s;
    touch-action: manipulation;
    user-select: none;
    -webkit-user-select: none;
    overflow: hidden;
}

.bingo-cell:active {
    transform: scale(0.95);
}

.bingo-cell.found {
    background: var(--found-bg);
    border-color: var(--found-border);
}

.bingo-cell.free-space {
    background: var(--free-bg);
    border-color: var(--free-border);
}

.bingo-cell.win-cell {
    background: var(--win-bg) !important;
    border-color: #e6b800 !important;
    animation: pulse 0.6s ease-in-out infinite alternate;
}

.center-avatar {
    width: 85%;
    height: 85%;
    object-fit: contain;
    border-radius: var(--radius);
    pointer-events: none;
}

@keyframes pulse {
    from { transform: scale(1); }
    to { transform: scale(1.06); }
}

/* ── Win Overlay ── */
.win-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 100;
    background: rgba(0,0,0,0.6);
    align-items: center;
    justify-content: center;
}

.win-overlay.visible {
    display: flex;
}

.win-dialog {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    padding: 32px 28px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
    max-width: 320px;
    width: 90%;
}

.win-dialog h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 8px;
}

.win-dialog p {
    margin-bottom: 20px;
    font-size: 1rem;
    opacity: 0.85;
}

.win-dialog .win-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.win-dialog button {
    font-size: 0.95rem;
    padding: 10px 20px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    font-weight: 600;
    min-height: 44px;
    touch-action: manipulation;
}

.win-dialog .btn-primary {
    background: var(--accent);
    color: var(--bg);
}

.win-dialog .btn-secondary {
    background: var(--border-light);
    color: var(--fg);
}

/* ── Footer / Disclaimer ── */
.footer {
    margin-top: 16px;
    text-align: center;
    font-size: 0.75rem;
    opacity: 0.7;
    max-width: 420px;
    line-height: 1.5;
}

.footer a {
    color: var(--accent);
    text-decoration: underline;
}

/* ── Home Page ── */
.home-body {
    padding: 0;
}

.hero {
    width: 100%;
    text-align: center;
    padding: 64px 20px 48px;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    max-width: 500px;
    height: 100%;
    border-left: 1px solid var(--border-light);
    border-right: 1px solid var(--border-light);
    pointer-events: none;
}

.hero-logo {
    display: block;
    max-width: 280px;
    width: 70%;
    height: auto;
    margin: 0 auto 12px;
}

.hero-tagline {
    font-size: 0.85rem;
    margin-top: 12px;
    color: var(--fg-muted);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-style: normal;
}

.hero-divider {
    width: 60px;
    height: 1px;
    background: var(--accent);
    margin: 20px auto 0;
}

.home-section {
    width: 100%;
    max-width: 640px;
    margin: 0 auto;
    padding: 40px 20px;
    text-align: center;
}

.home-section + .home-section {
    border-top: 1px solid var(--border);
}

.home-section h2 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 0.04em;
    margin-bottom: 12px;
}

.home-section p {
    font-size: 1rem;
    line-height: 1.7;
    max-width: 500px;
    margin: 0 auto 20px;
    color: var(--fg-muted);
}

.home-btn {
    display: inline-block;
    padding: 12px 28px;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--bg);
    background: var(--accent);
    border: 1px solid var(--accent);
    border-radius: var(--radius);
    text-decoration: none;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    transition: background 0.15s, color 0.15s, transform 0.1s;
    min-height: 44px;
    touch-action: manipulation;
}

.home-btn:active {
    transform: scale(0.97);
}

.home-btn:hover {
    background: var(--accent-light);
}

.home-btn-outline {
    background: transparent;
    color: var(--accent);
}

.home-btn-outline:hover {
    background: var(--accent);
    color: var(--bg);
}

.home-btn-group {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Home mode selector */
.home-mode-select {
    margin-bottom: 16px;
}

.home-mode-select select {
    font-family: var(--font-body);
    font-size: 0.85rem;
    padding: 10px 16px;
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
    background: var(--bg-surface);
    color: var(--fg);
    cursor: pointer;
    min-height: 44px;
    touch-action: manipulation;
}

/* Category cards */
.category-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 14px;
    max-width: 520px;
    margin: 0 auto;
}

.category-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 24px 14px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--fg);
    transition: border-color 0.15s, transform 0.1s;
    touch-action: manipulation;
}

.category-card:hover,
.category-card:focus-visible {
    border-color: var(--accent);
}

.category-card:active {
    transform: scale(0.97);
}

.category-icon {
    font-size: 2rem;
    line-height: 1;
}

.category-name {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.04em;
}

/* ── Social Links ── */
.social-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    justify-content: center;
    max-width: 520px;
    margin: 4px auto 0;
}

.social-links a {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px 14px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--fg);
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-decoration: none;
    letter-spacing: 0.04em;
    transition: border-color 0.2s, color 0.2s, transform 0.1s;
    touch-action: manipulation;
}

.social-links a i {
    font-size: 1.6rem;
    color: var(--accent);
    transition: color 0.2s;
}

.social-links a span {
    font-size: 0.8rem;
    text-align: center;
    line-height: 1.3;
}

.social-links a:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.social-links a:active {
    transform: scale(0.97);
}

.home-footer {
    width: 100%;
    max-width: 640px;
    margin: 0 auto;
    padding: 28px 20px;
    border-top: 1px solid var(--border);
}

.footer-socials {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 14px;
}

.footer-socials a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
    color: var(--fg-muted);
    border: 1px solid var(--border);
    border-radius: 50%;
    text-decoration: none;
    transition: color 0.2s, border-color 0.2s, transform 0.15s;
}

.footer-socials a:hover {
    color: var(--accent);
    border-color: var(--accent);
    transform: scale(1.1);
}

/* ── Learn Page ── */
.learn-hero {
    text-align: center;
    padding: 40px 20px 32px;
    border-bottom: 1px solid var(--border);
}

.learn-hero h1 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    color: var(--accent);
    margin-bottom: 8px;
}

.learn-hero p {
    color: var(--fg-muted);
    font-size: 0.95rem;
    max-width: 480px;
    margin: 0 auto;
    line-height: 1.7;
}

.learn-content {
    max-width: 720px;
    margin: 0 auto;
    padding: 32px 20px;
}

.learn-category {
    margin-bottom: 36px;
}

.learn-category h2 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: var(--accent);
    letter-spacing: 0.04em;
    margin-bottom: 14px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
}

.article-card {
    display: block;
    padding: 18px 16px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--fg);
    transition: border-color 0.15s;
}

.article-card:hover {
    border-color: var(--accent);
}

.article-card h3 {
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.article-card p {
    font-size: 0.8rem;
    color: var(--fg-muted);
    line-height: 1.5;
}

.article-card .coming-soon {
    display: inline-block;
    margin-top: 8px;
    font-size: 0.7rem;
    color: var(--accent-dim);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* ── Content Pages (privacy, disclaimer, learn) ── */
.page {
    max-width: 640px;
    margin: 0 auto;
    padding: 32px 20px;
    line-height: 1.7;
}

.page h1 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 12px;
}

.page h2 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: var(--accent);
    margin-top: 28px;
    margin-bottom: 10px;
}

.page p {
    margin-bottom: 14px;
}

.page ul {
    padding-left: 20px;
    margin-bottom: 14px;
}

.page a {
    color: var(--accent);
}

.page a:hover {
    color: var(--accent-light);
}

/* ── Article Pages ── */
.article-page h1 {
    font-size: 1.8rem;
    margin-bottom: 6px;
}

.article-subtitle {
    font-size: 1.05rem;
    color: var(--fg-muted);
    font-style: italic;
    margin-bottom: 24px;
}

.article-breadcrumb {
    margin-bottom: 20px;
    font-size: 0.85rem;
}

.article-page ul li {
    margin-bottom: 6px;
    line-height: 1.6;
}

/* ── Responsive ── */
@media (min-width: 500px) {
    .bingo-cell {
        font-size: 0.8rem;
        padding: 6px;
    }
    .hero-logo {
        max-width: 340px;
    }
}

@media (min-width: 700px) {
    .bingo-grid {
        max-width: 520px;
    }
    .bingo-cell {
        font-size: 0.9rem;
    }
    .hero {
        padding: 80px 24px 60px;
    }
    .hero-logo {
        max-width: 400px;
    }
}