/* Puzlu Arena — Public Styles */

:root {
    --font: 'Inter', system-ui, -apple-system, sans-serif;
    --radius: 12px;
    --radius-lg: 20px;
    --shadow: 0 1px 3px rgba(0,0,0,.06), 0 8px 24px rgba(0,0,0,.04);
    --shadow-lg: 0 4px 24px rgba(0,0,0,.08);
    --transition: .2s ease;

    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-soft: rgba(99,102,241,.12);
    --accent: #8b5cf6;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;

    --bg: #f8fafc;
    --surface: #ffffff;
    --surface-alt: #f1f5f9;
    --text: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --header-bg: rgba(255,255,255,.85);
}

[data-theme="dark"] {
    --bg: #0b0f1a;
    --surface: #131a2b;
    --surface-alt: #1a2235;
    --text: #f1f5f9;
    --text-muted: #94a3b8;
    --border: #243044;
    --header-bg: rgba(11,15,26,.9);
    --shadow: 0 1px 3px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.2);
    --shadow-lg: 0 4px 24px rgba(0,0,0,.35);
    --primary-soft: rgba(99,102,241,.2);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; }

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }

.container { width: min(1200px, 100% - 2rem); margin-inline: auto; }
.container-narrow { width: min(480px, 100% - 2rem); margin-inline: auto; }

.sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0,0,0,0); border: 0;
}

/* Header */
.site-header {
    position: sticky; top: 0; z-index: 100;
    background: var(--header-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    display: flex; align-items: center; gap: 1rem;
    min-height: 64px;
}

.logo {
    display: flex; align-items: center; gap: .6rem;
    color: var(--text); font-weight: 700; font-size: 1.1rem;
}

.logo-img {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    object-fit: cover;
    flex-shrink: 0;
    display: block;
}

.logo-img--footer {
    width: 44px;
    height: 44px;
    margin-bottom: .35rem;
}

.logo-img--admin {
    width: 32px;
    height: 32px;
}

.logo-mark {
    display: grid; place-items: center;
    width: 36px; height: 36px; border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff; font-size: .75rem; font-weight: 800;
}

.main-nav {
    display: flex; gap: .25rem; margin-left: 1rem;
}

.main-nav a {
    color: var(--text-muted); padding: .5rem .75rem;
    border-radius: 8px; font-size: .9rem; font-weight: 500;
    transition: var(--transition);
}

.main-nav a:hover { color: var(--text); background: var(--surface-alt); }

.header-actions {
    display: flex; align-items: center; gap: .5rem; margin-left: auto;
}

.nav-toggle {
    display: none; flex-direction: column; gap: 5px;
    background: none; border: none; cursor: pointer; padding: .5rem;
}

.nav-toggle span {
    display: block; width: 22px; height: 2px;
    background: var(--text); border-radius: 1px;
}

.theme-toggle {
    display: grid; place-items: center;
    width: 40px; height: 40px; border-radius: 10px;
    border: 1px solid var(--border); background: var(--surface);
    color: var(--text); cursor: pointer; transition: var(--transition);
}

.theme-toggle:hover { border-color: var(--primary); }

[data-theme="light"] .icon-moon,
[data-theme="dark"] .icon-sun { display: none; }

.select-minimal, select, input, textarea {
    font: inherit; color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: .6rem .85rem;
    transition: var(--transition);
}

select:focus, input:focus, textarea:focus {
    outline: none; border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-soft);
}

.wallet-pill {
    padding: .4rem .75rem; border-radius: 999px;
    background: var(--primary-soft); color: var(--primary);
    font-weight: 600; font-size: .85rem;
}

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    gap: .4rem; padding: .65rem 1.1rem;
    border-radius: var(--radius); font-weight: 600; font-size: .9rem;
    border: 1px solid transparent; cursor: pointer;
    transition: var(--transition); text-decoration: none;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); color: #fff; }

.btn-secondary {
    background: var(--surface); color: var(--text);
    border-color: var(--border);
}
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); }

.btn-ghost { background: transparent; color: var(--text-muted); }
.btn-ghost:hover { color: var(--text); background: var(--surface-alt); }

.btn-sm { padding: .45rem .8rem; font-size: .82rem; }
.btn-lg { padding: .85rem 1.5rem; font-size: 1rem; }
.btn-block { width: 100%; }

/* Hero */
.hero {
    padding: 4rem 0 3rem;
    background: linear-gradient(180deg, var(--primary-soft) 0%, transparent 70%);
}

.hero-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center;
}

.eyebrow {
    display: inline-block; font-size: .8rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: .08em;
    color: var(--primary); margin-bottom: .75rem;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: 800; line-height: 1.1; margin: 0 0 1rem;
    letter-spacing: -.02em;
}

.lead { font-size: 1.1rem; color: var(--text-muted); margin: 0 0 1.5rem; max-width: 52ch; }

.hero-search {
    display: flex; gap: .5rem; margin-bottom: 1.5rem;
}

.hero-search input { flex: 1; }

.hero-cta { display: flex; gap: .75rem; flex-wrap: wrap; }

.hero-visual { position: relative; aspect-ratio: 1; max-width: 400px; margin-inline: auto; }

.hero-orb {
    position: absolute; inset: 10%;
    background: radial-gradient(circle, var(--primary) 0%, var(--accent) 50%, transparent 70%);
    border-radius: 50%; filter: blur(40px); opacity: .4;
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: .4; }
    50% { transform: scale(1.1); opacity: .6; }
}

.hero-puzzle-grid {
    position: relative; display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 8px; padding: 2rem;
}

.puzzle-cell {
    aspect-ratio: 1; border-radius: 12px;
    background: var(--surface); border: 1px solid var(--border);
    box-shadow: var(--shadow);
    animation: float 3s ease-in-out infinite;
}

.puzzle-cell:nth-child(odd) { animation-delay: .5s; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

/* Sections */
.section { padding: 3.5rem 0; }
.section-compact { padding: 1.5rem 0; }
.section-alt { background: var(--surface-alt); }

.section-header {
    display: flex; justify-content: space-between; align-items: end;
    margin-bottom: 2rem;
}

.section-header h2 { margin: 0; font-size: 1.75rem; font-weight: 700; }

.link-arrow { font-weight: 600; color: var(--primary); }

/* Cards & Grids */
.feature-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem;
}

.feature-card, .game-card, .competition-card, .entry-card, .step-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 1.5rem;
    box-shadow: var(--shadow); transition: var(--transition);
}

.feature-card:hover, .game-card:hover, .competition-card:hover {
    transform: translateY(-2px); box-shadow: var(--shadow-lg);
}

.feature-icon, .game-card-icon { font-size: 2rem; margin-bottom: .75rem; }

.feature-card h3, .game-card h3, .competition-card h3 { margin: 0 0 .5rem; font-size: 1.05rem; }
.feature-card p, .game-card p { margin: 0; color: var(--text-muted); font-size: .9rem; }

.card-grid { display: grid; gap: 1.25rem; }
.card-grid-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Badges */
.badge {
    display: inline-block; padding: .2rem .55rem;
    border-radius: 999px; font-size: .72rem; font-weight: 600;
    background: var(--surface-alt); color: var(--text-muted);
}

.badge-active { background: rgba(16,185,129,.15); color: var(--success); }
.badge-upcoming { background: rgba(99,102,241,.15); color: var(--primary); }
.badge-closed { background: var(--surface-alt); color: var(--text-muted); }
.badge-results { background: rgba(139,92,246,.15); color: var(--accent); }
.badge-accent { background: var(--primary-soft); color: var(--primary); }
.badge-free { background: rgba(16,185,129,.15); color: var(--success); margin-bottom: .5rem; }

/* Competition cards */
.competition-card-top { display: flex; flex-wrap: wrap; gap: .35rem; margin-bottom: .75rem; }
.competition-card h3 a { color: var(--text); }
.competition-card h3 a:hover { color: var(--primary); }

.competition-meta {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: .75rem;
    margin: 1rem 0; padding: 1rem 0;
    border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}

.meta-label { display: block; font-size: .72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .04em; }
.meta-value { font-weight: 600; font-size: .95rem; }
.meta-value.prize { color: var(--primary); font-size: 1.1rem; }

.competition-actions { display: flex; flex-direction: column; gap: .5rem; }

/* Announcements */
.announcement-list { display: flex; flex-direction: column; gap: .75rem; }

.announcement {
    display: flex; gap: 1rem; align-items: start;
    padding: 1rem 1.25rem; border-radius: var(--radius);
    background: var(--surface); border: 1px solid var(--border);
}

.announcement p { margin: .25rem 0 0; color: var(--text-muted); font-size: .9rem; }

/* Page hero */
.page-hero {
    padding: 3rem 0 2rem;
    background: linear-gradient(180deg, var(--primary-soft) 0%, transparent 100%);
}

.page-hero h1 { margin: 0; font-size: 2.25rem; font-weight: 800; }
.page-hero-accent { background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%); color: #fff; }
.page-hero-accent .lead, .page-hero-accent h1 { color: #fff; }

.hero-split { display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: center; }

.hero-cube {
    width: 120px; height: 120px; border-radius: 16px;
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    transform: rotate(15deg);
    box-shadow: 0 20px 40px rgba(0,0,0,.2);
}

.pill-row { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: 1rem; }
.pill-badge {
    padding: .35rem .85rem; border-radius: 999px;
    background: rgba(255,255,255,.2); font-size: .82rem; font-weight: 600;
}

/* Filters */
.filter-bar {
    display: flex; flex-wrap: wrap; gap: 1rem; align-items: end;
    padding: 1.25rem; margin-bottom: 2rem;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.filter-group { display: flex; flex-direction: column; gap: .35rem; min-width: 140px; }
.filter-group label { font-size: .78rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; }

/* Entry cards */
.entry-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.25rem; margin-top: 1.5rem; }
.entry-grid-large .entry-card { padding: 2rem; }
.entry-icon { font-size: 2rem; margin-bottom: .75rem; }
.steps-list { padding-left: 1.25rem; color: var(--text-muted); }
.steps-list li { margin-bottom: .5rem; }

.info-panel {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 1.5rem;
}

.info-panel ul { margin: 0; padding-left: 1.25rem; color: var(--text-muted); }

.compliance-banner {
    padding: 1.5rem 0; background: var(--primary-soft);
    border-top: 1px solid var(--border);
}

.compliance-banner .container { display: flex; gap: 1rem; align-items: center; }
.compliance-banner p { margin: 0; font-size: .9rem; }

/* Steps */
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; margin-bottom: 2rem; }
.step-number { font-size: 2.5rem; font-weight: 800; color: var(--primary); opacity: .3; }
.cta-center { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* Difficulty pills */
.difficulty-pills { display: flex; gap: .5rem; justify-content: center; flex-wrap: wrap; }
.pill {
    padding: .6rem 1.25rem; border-radius: 999px;
    border: 1px solid var(--border); background: var(--surface);
    font-weight: 600; cursor: pointer; transition: var(--transition);
}
.pill.active, .pill:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* Detail pages */
.detail-grid { display: grid; grid-template-columns: 1fr 300px; gap: 2rem; }
.competition-detail-header { display: flex; justify-content: space-between; align-items: start; gap: 2rem; }
.prize-highlight { text-align: right; }
.prize-highlight span { display: block; font-size: .8rem; color: var(--text-muted); }
.prize-highlight strong { font-size: 2.5rem; color: var(--primary); }

.info-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-bottom: 2rem; }
.info-card {
    padding: 1rem; border-radius: var(--radius);
    background: var(--surface); border: 1px solid var(--border);
}
.info-label { display: block; font-size: .75rem; color: var(--text-muted); }
.info-value { font-weight: 700; font-size: 1.1rem; }

.back-link { display: inline-block; margin-bottom: .75rem; color: var(--text-muted); font-size: .9rem; }

/* Tables */
.leaderboard-table-wrap { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--border); }
.leaderboard-table { width: 100%; border-collapse: collapse; background: var(--surface); }
.leaderboard-table th, .leaderboard-table td { padding: .85rem 1rem; text-align: left; border-bottom: 1px solid var(--border); }
.leaderboard-table th { font-size: .75rem; text-transform: uppercase; letter-spacing: .04em; color: var(--text-muted); background: var(--surface-alt); }
.leaderboard-table tr:last-child td { border-bottom: none; }

/* Auth */
.auth-section { min-height: 60vh; display: flex; align-items: center; }
.auth-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 2rem; box-shadow: var(--shadow-lg);
}
.auth-card h1 { margin: 0 0 .5rem; }
.auth-form { margin-top: 1.5rem; }
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: .35rem; font-size: .85rem; font-weight: 600; }
.form-group input, .form-group select { width: 100%; }
.auth-switch { text-align: center; margin-top: 1.5rem; font-size: .9rem; color: var(--text-muted); }

.alert { padding: .85rem 1rem; border-radius: var(--radius); margin-bottom: 1rem; font-size: .9rem; }
.alert-error { background: rgba(239,68,68,.1); color: var(--danger); border: 1px solid rgba(239,68,68,.2); }
.alert-success { background: rgba(16,185,129,.1); color: var(--success); border: 1px solid rgba(16,185,129,.2); }

.text-muted { color: var(--text-muted); }

.wallet-balance-card {
    text-align: center; padding: 2rem;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-lg); margin-bottom: 2rem;
}
.wallet-balance-card span { display: block; color: var(--text-muted); font-size: .9rem; }
.wallet-balance-card strong { display: block; font-size: 2.5rem; color: var(--primary); margin: .5rem 0 1rem; }

/* Profile */
.page-hero-subtitle { margin: .5rem 0 0; color: var(--text-muted); max-width: 50ch; }
.profile-grid { display: grid; gap: 1.5rem; }
.profile-sidebar { display: grid; gap: 1rem; align-content: start; }
.profile-avatar-card {
    text-align: center; padding: 1.5rem;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}
.profile-avatar-preview {
    width: 112px; height: 112px; margin: 0 auto 1rem;
    border-radius: 50%; overflow: hidden;
    background: linear-gradient(135deg, var(--primary), #8b5cf6);
    display: grid; place-items: center;
}
.profile-avatar-preview img { width: 100%; height: 100%; object-fit: cover; }
.profile-avatar-initial { font-size: 2.5rem; font-weight: 700; color: #fff; }
.profile-display-name { margin: 0 0 .25rem; font-size: 1.15rem; }
.profile-display-email { margin: 0 0 .75rem; color: var(--text-muted); font-size: .9rem; word-break: break-word; }
.profile-role-badge {
    display: inline-block; padding: .25rem .65rem; border-radius: 999px;
    font-size: .75rem; font-weight: 600; background: var(--surface-alt); color: var(--text-muted);
}
.profile-wallet-card { margin-bottom: 0; }
.profile-credits-hint { font-size: .85rem; margin: 0 0 1rem; }
.profile-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 1.5rem; margin-bottom: 1rem;
}
.profile-card h2 { margin: 0 0 .35rem; font-size: 1.1rem; }
.profile-card > .text-muted { margin: 0 0 1rem; font-size: .9rem; }
.profile-form { margin-top: 1rem; }
.profile-form-actions { display: flex; flex-wrap: wrap; gap: .75rem; }
.profile-wallet-link { margin: 1rem 0 0; font-size: .9rem; }
.header-profile-link {
    display: inline-flex; align-items: center; gap: .5rem;
    padding: .25rem .5rem .25rem .25rem; border-radius: 999px;
    border: 1px solid var(--border); background: var(--surface);
    color: var(--text); text-decoration: none; max-width: 180px;
}
.header-profile-link:hover { border-color: var(--primary); }
.header-avatar {
    width: 28px; height: 28px; border-radius: 50%; overflow: hidden;
    background: linear-gradient(135deg, var(--primary), #8b5cf6);
    display: grid; place-items: center; flex-shrink: 0;
    font-size: .75rem; font-weight: 700; color: #fff;
}
.header-avatar img { width: 100%; height: 100%; object-fit: cover; }
.header-profile-name {
    font-size: .8rem; font-weight: 600; white-space: nowrap;
    overflow: hidden; text-overflow: ellipsis;
}
@media (min-width: 900px) {
    .profile-grid { grid-template-columns: 280px 1fr; align-items: start; }
}

.empty-state { color: var(--text-muted); text-align: center; padding: 2rem; grid-column: 1 / -1; }

/* Footer */
.site-footer {
    margin-top: 3rem; padding: 2.5rem 0;
    border-top: 1px solid var(--border); background: var(--surface);
}

.footer-inner { display: grid; gap: 1.5rem; }
.footer-brand p { margin: .5rem 0 0; color: var(--text-muted); font-size: .85rem; max-width: 40ch; }
.footer-nav { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.footer-nav a { color: var(--text-muted); font-size: .9rem; }
.footer-social { display: flex; gap: .75rem; margin-top: .75rem; font-size: .85rem; }
.footer-social a { color: var(--text-muted); }
.footer-copy { margin: 0; color: var(--text-muted); font-size: .8rem; }

.install-pwa {
    position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 200;
    padding: .75rem 1.25rem; border-radius: 999px;
    background: var(--primary); color: #fff; border: none;
    font-weight: 600; cursor: pointer; box-shadow: var(--shadow-lg);
}
.install-pwa.hidden { display: none; }

/* Responsive */
@media (max-width: 1024px) {
    .card-grid-4 { grid-template-columns: repeat(2, 1fr); }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .detail-grid { grid-template-columns: 1fr; }
}

.competition-linked-puzzle { margin: -.25rem 0 .75rem; font-size: .9rem; }

.competition-play-cta { margin-bottom: 2rem; }

.competition-play-banner {
    background: linear-gradient(90deg, rgba(99, 102, 241, .12), rgba(99, 102, 241, .04));
    border-bottom: 1px solid var(--border);
    padding: .85rem 0;
}

.competition-play-banner-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.competition-play-banner-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: .9rem;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .main-nav {
        display: none; position: absolute; top: 64px; left: 0; right: 0;
        flex-direction: column; background: var(--surface);
        border-bottom: 1px solid var(--border); padding: 1rem;
    }
    .main-nav.open { display: flex; }
    .hero-grid { grid-template-columns: 1fr; }
    .hero-visual { display: none; }
    .card-grid-3, .card-grid-4, .feature-grid, .steps-grid, .entry-grid, .info-cards { grid-template-columns: 1fr; }
    .competition-meta { grid-template-columns: 1fr; }
    .header-actions .btn-ghost:not(.wallet-pill) { display: none; }
    .hero-split { grid-template-columns: 1fr; }
    .hero-cube { display: none; }
}