/* Mobile overflow fix */
html, body { overflow-x: hidden; max-width: 100vw; }
/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 500;
    background: #f4f1ec;
    color: #1a1625;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    padding-bottom: 6rem;
}

/* ── Color Tokens — aligned with gateway --g-* brand ── */
:root {
    --primary: #006d3f;
    --primary-dim: #00a35e;
    --primary-container: #e6f7ef;
    --on-primary: #ffffff;
    --on-primary-container: #003b22;
    --secondary: #00838f;
    --secondary-dim: #006772;
    --secondary-container: #e0f7fa;
    --secondary-fixed: #e0f7fa;
    --on-secondary: #ffffff;
    --on-secondary-container: #00343a;
    --tertiary: #6a37d4;
    --tertiary-container: #ede9fe;
    --on-tertiary: #ffffff;
    --on-tertiary-container: #2b006e;
    --surface: #f4f1ec;
    --surface-container: #faf9f7;
    --surface-container-low: #faf9f7;
    --surface-container-lowest: #ffffff;
    --surface-container-high: #f0ece5;
    --on-surface: #1a1625;
    --on-surface-variant: #6e6a7a;
    --outline-variant: #e8e3d8;
    --error: #dc2626;
    --error-container: #fef2f2;
}

[data-theme="dark"] {
    --primary: #a078ff;
    --primary-dim: #00a35e;
    --primary-container: #4a1d96;
    --on-primary: #f8f0ff;
    --on-primary-container: #d4bbff;
    --secondary: #37d4ff;
    --secondary-dim: #00a3cc;
    --secondary-container: #003d4d;
    --secondary-fixed: #80deff;
    --on-secondary: #e2f6ff;
    --on-secondary-container: #80deff;
    --tertiary: #fdd400;
    --tertiary-container: #5a4800;
    --on-tertiary: #1a1200;
    --on-tertiary-container: #ffeea0;
    --surface: #0b0f10;
    --surface-container: #1a1e20;
    --surface-container-low: #141819;
    --surface-container-lowest: #0b0f10;
    --surface-container-high: #242829;
    --on-surface: #e0e3e5;
    --on-surface-variant: #9a9d9f;
    --outline-variant: #595c5e;
    --error: #f74b6d;
    --error-container: #93002a;
}
[data-theme="dark"] body { background: var(--surface); color: var(--on-surface); }

/* ── Utility ── */
.container { max-width: 80rem; margin: 0 auto; padding: 0 1rem; }
@media (min-width: 640px) { .container { padding: 0 1.5rem; } }

.chunky-shadow { box-shadow: 8px 8px 0 rgba(0,109,63,0.12); }
.chunky-shadow-teal { box-shadow: 8px 8px 0 rgba(0,100,123,0.2); }
.chunky-shadow-yellow { box-shadow: 8px 8px 0 rgba(109,90,0,0.2); }
.hover-lift { transition: transform 0.2s, box-shadow 0.2s; }
.hover-lift:hover {
    transform: translate(-2px, -2px) scale(1.02);
    box-shadow: 10px 10px 0 rgba(0,109,63,0.12);
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}
.animate-float { animation: float 3s ease-in-out infinite; }

/* ── Top Nav ── */
.top-nav {
    position: sticky; top: 0; z-index: 50;
    max-width: 80rem; margin: 1rem auto 0;
    padding: 0.75rem 1.5rem;
    background: rgba(255,255,255,0.97);
    border-radius: 9999px;
    box-shadow: 0 4px 0 rgba(0,109,63,0.12);
    display: flex; align-items: center; justify-content: space-between;
}
[data-theme="dark"] .top-nav { background: rgba(15,23,42,0.97); box-shadow: 0 4px 0 rgba(0,0,0,0.3); }
.nav-brand { font-size: 1.5rem; font-weight: 800; color: var(--primary); letter-spacing: -0.05em; text-decoration: none; }
.nav-links { display: none; gap: 2rem; align-items: center; }
@media (min-width: 768px) { .nav-links { display: flex; } }
.nav-links a {
    text-decoration: none; font-weight: 600; color: var(--on-surface-variant);
    transition: transform 0.2s;
}
.nav-links a:hover { transform: scale(1.05) rotate(1deg); color: var(--primary); }
.nav-links a.active { color: var(--primary); border-bottom: 4px solid var(--primary); border-radius: 0 0 2px 2px; font-weight: 700; }
.nav-actions { display: flex; align-items: center; gap: 1rem; }
.btn-join {
    display: none; padding: 0.5rem 1.5rem;
    background: var(--primary); color: var(--on-primary);
    border: none; border-radius: 9999px; font-weight: 700; font-family: inherit;
    cursor: pointer; box-shadow: 0 4px 0 var(--primary-dim);
    transition: transform 0.2s;
}
.btn-join:hover { transform: scale(1.05); }
@media (min-width: 640px) { .btn-join { display: block; } }
.nav-icon { cursor: pointer; transition: transform 0.2s; font-size: 1.5rem; color: var(--primary); }
.nav-icon:hover { transform: scale(1.1); }

/* ── Hero ── */
.hero {
    position: relative; overflow: hidden;
    border-radius: 1.5rem; padding: 3rem 2rem;
    background: linear-gradient(135deg, var(--primary-container), var(--primary) 120%);
    display: flex; flex-direction: column; gap: 3rem; align-items: center;
}
@media (min-width: 768px) { .hero { flex-direction: row; padding: 4rem; } }
.hero-text { flex: 1; z-index: 2; }
.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 800;
    color: var(--on-primary-container); line-height: 1; letter-spacing: -0.04em;
}
.hero h1 em { color: var(--primary); font-style: italic; }
.hero p { font-size: 1.2rem; color: rgba(43,0,110,0.75); max-width: 32rem; margin-top: 1.5rem; }
.hero-buttons { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2rem; }
.btn-quest {
    padding: 1rem 2rem; background: var(--tertiary-container); color: var(--on-tertiary-container);
    border: none; border-radius: 9999px; font-size: 1.15rem; font-weight: 800;
    font-family: inherit; cursor: pointer;
    box-shadow: 0 6px 0 var(--on-tertiary-container);
    transition: transform 0.2s, box-shadow 0.1s;
    text-decoration: none;
}
.btn-quest:hover { transform: scale(1.05) rotate(-2deg); }
.btn-quest:active { transform: translateY(2px); box-shadow: none; }
.btn-explore {
    padding: 1rem 2rem; background: #fff; color: var(--primary);
    border: none; border-radius: 9999px; font-size: 1.15rem; font-weight: 800;
    font-family: inherit; cursor: pointer;
    box-shadow: 0 6px 0 var(--surface-container);
    transition: transform 0.2s, box-shadow 0.1s;
    text-decoration: none;
}
.btn-explore:hover { transform: scale(1.05) rotate(2deg); }
.btn-explore:active { transform: translateY(2px); box-shadow: none; }

.hero-visual { flex: 1; position: relative; }
.code-block {
    background: #1e1b2e; border-radius: 1rem; padding: 1.5rem;
    font-family: 'Courier New', monospace; font-size: 0.9rem; color: #d4d4d4;
    overflow: hidden; transform: rotate(2deg);
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.code-block .title-bar {
    display: flex; gap: 0.5rem; margin-bottom: 1rem;
}
.code-block .dot { width: 12px; height: 12px; border-radius: 50%; }
.code-block .dot-red { background: #ff5f57; }
.code-block .dot-yellow { background: #ffbd2e; }
.code-block .dot-green { background: #28c840; }
.code-keyword { color: #c792ea; }
.code-string { color: #c3e88d; }
.code-func { color: #82aaff; }
.code-comment { color: #676e95; }
.code-output {
    margin-top: 1rem; padding-top: 1rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #28c840;
}
.hero-blob-1 {
    position: absolute; top: -3rem; right: -3rem;
    width: 10rem; height: 10rem; background: var(--tertiary-container);
    border-radius: 50%; filter: blur(60px); opacity: 0.5;
}
.hero-blob-2 {
    position: absolute; bottom: -3rem; left: -3rem;
    width: 12rem; height: 12rem; background: var(--secondary-fixed);
    border-radius: 50%; filter: blur(60px); opacity: 0.4;
}

/* ── Stats Bar ── */
.stats-bar {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem;
}
@media (min-width: 768px) { .stats-bar { grid-template-columns: repeat(4, 1fr); } }
.stat-card {
    background: var(--surface-container-lowest); padding: 1.5rem;
    border-radius: 1.5rem; text-align: center;
}
.stat-card .stat-value { font-size: 2rem; font-weight: 800; color: var(--primary); }
.stat-card .stat-label { font-size: 0.9rem; font-weight: 600; color: var(--on-surface-variant); }

/* ── Studios Grid ── */
.section-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 2.5rem; flex-wrap: wrap; gap: 1rem; }
.section-header h2 { font-size: 2rem; font-weight: 800; letter-spacing: -0.03em; }
.section-header p { font-size: 1.1rem; color: var(--on-surface-variant); font-weight: 500; }
.section-link { color: var(--primary); font-weight: 700; text-decoration: none; display: flex; align-items: center; gap: 0.25rem; }
.section-link:hover { text-decoration: underline; }

.studios-grid { display: grid; grid-template-columns: repeat(1, 1fr); gap: 1.5rem; }
@media (min-width: 640px) { .studios-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .studios-grid { grid-template-columns: repeat(3, 1fr); } }

.studio-card {
    background: var(--surface-container-lowest); padding: 2rem;
    border-radius: 1.5rem; border: 4px solid transparent;
    transition: all 0.25s; cursor: pointer; text-decoration: none; color: inherit; display: block;
}
.studio-card:hover { border-color: var(--primary); transform: translate(-2px, -2px); }
.studio-icon {
    width: 3.5rem; height: 3.5rem; border-radius: 0.75rem;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 1.25rem; font-size: 1.75rem;
    transition: transform 0.3s;
}
.studio-card:hover .studio-icon { transform: rotate(12deg); }
.studio-card h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 0.5rem; }
.studio-card p { color: var(--on-surface-variant); font-weight: 500; font-size: 0.95rem; }

.icon-code { background: var(--secondary-container); color: var(--on-secondary-container); transform: rotate(-3deg); }
.icon-web { background: var(--tertiary-container); color: var(--on-tertiary-container); transform: rotate(3deg); }
.icon-graphic { background: var(--primary-container); color: var(--on-primary-container); transform: rotate(6deg); }
.icon-data { background: var(--error-container); color: #510017; transform: rotate(-6deg); }
.icon-system { background: var(--surface-container-high); color: var(--on-surface); transform: rotate(2deg); }
.icon-ai { background: #e8def8; color: var(--primary); transform: rotate(-4deg); }

/* ── Bento: Leaderboard + Quest ── */
.bento-grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
@media (min-width: 1024px) { .bento-grid { grid-template-columns: 2fr 1fr; } }

.leaderboard {
    background: var(--surface-container-low); padding: 2rem;
    border-radius: 1.5rem; border: 4px solid var(--surface-container-lowest);
}
.leaderboard-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 1.5rem; flex-wrap: wrap; gap: 1rem;
}
.leaderboard-header h2 { font-size: 1.75rem; font-weight: 800; display: flex; align-items: center; gap: 0.5rem; }
.trophy-icon { font-size: 2rem; }
.week-badge {
    background: var(--surface-container-lowest); padding: 0.5rem 1rem;
    border-radius: 9999px; font-weight: 700; font-size: 0.85rem;
}
.rank-row {
    display: flex; align-items: center; gap: 1rem;
    background: var(--surface-container-lowest); padding: 1rem;
    border-radius: 0.75rem; margin-bottom: 0.75rem;
    transition: transform 0.2s;
}
.rank-row:hover { transform: scale(1.02); }
.rank-num { font-size: 1.5rem; font-weight: 800; width: 2rem; text-align: center; }
.rank-1 { color: var(--tertiary); }
.rank-2 { color: #94a3b8; }
.rank-3 { color: #b45309; }
.rank-avatar {
    width: 3rem; height: 3rem; border-radius: 50%; border: 4px solid;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.25rem; font-weight: 800; color: white;
}
.rank-info { flex: 1; }
.rank-info h4 { font-weight: 700; font-size: 1.05rem; line-height: 1.2; }
.rank-info span { font-size: 0.8rem; color: var(--on-surface-variant); font-weight: 500; }
.rank-points { text-align: right; }
.rank-points strong { display: block; font-weight: 800; color: var(--primary); }
.rank-points small { font-size: 0.65rem; text-transform: uppercase; font-weight: 700; color: var(--on-surface-variant); }

.daily-quest {
    background: var(--secondary); padding: 2rem; border-radius: 1.5rem;
    color: var(--on-secondary); display: flex; flex-direction: column; justify-content: space-between;
    border: 4px solid var(--secondary-fixed);
}
.quest-badge {
    display: inline-block; background: var(--secondary-fixed); color: var(--on-secondary-container);
    padding: 0.25rem 0.75rem; border-radius: 9999px; font-size: 0.7rem; font-weight: 800;
    text-transform: uppercase;
}
.daily-quest h3 { font-size: 1.75rem; font-weight: 800; margin-top: 1rem; }
.daily-quest > p { font-weight: 500; opacity: 0.9; margin-top: 0.5rem; }
.quest-progress { margin-top: 2rem; }
.quest-progress-header { display: flex; justify-content: space-between; margin-bottom: 0.5rem; font-weight: 700; font-size: 0.85rem; }
.progress-track {
    height: 1rem; background: var(--secondary-dim); border-radius: 9999px;
    position: relative; overflow: visible;
}
.progress-fill {
    height: 100%; background: var(--secondary-fixed); border-radius: 9999px;
    width: 66%;
}
.progress-blob {
    position: absolute; top: 50%; transform: translateY(-50%);
    width: 1.5rem; height: 1.5rem; background: white; border-radius: 50%;
    border: 4px solid var(--secondary-fixed);
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    left: calc(66% - 0.75rem);
}
.btn-continue {
    display: block; width: 100%; margin-top: 1.5rem;
    padding: 1rem; background: white; color: var(--secondary);
    border: none; border-radius: 9999px; font-weight: 800;
    font-family: inherit; font-size: 1rem; cursor: pointer;
    transition: transform 0.2s;
}
.btn-continue:hover { transform: scale(1.05); }

/* ── Featured Courses ── */
.courses-grid { display: grid; grid-template-columns: repeat(1, 1fr); gap: 1.5rem; }
@media (min-width: 640px) { .courses-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .courses-grid { grid-template-columns: repeat(3, 1fr); } }

.course-card {
    background: var(--surface-container-lowest); border-radius: 1.5rem;
    overflow: hidden; transition: all 0.25s; text-decoration: none; color: inherit; display: block;
}
.course-card:hover { transform: translate(-2px, -2px); box-shadow: 10px 10px 0 rgba(0,109,63,0.12); }
.course-thumb {
    height: 10rem; background: linear-gradient(135deg, var(--primary-container), var(--secondary-container));
    display: flex; align-items: center; justify-content: center; position: relative;
}
.course-thumb img { width: 100%; height: 100%; object-fit: cover; }
.xp-badge {
    position: absolute; top: 0.75rem; right: 0.75rem;
    background: var(--tertiary-container); color: var(--on-tertiary-container);
    padding: 0.25rem 0.75rem; border-radius: 9999px; font-size: 0.75rem; font-weight: 800;
}
.course-body { padding: 1.5rem; }
.course-category {
    display: inline-block; padding: 0.2rem 0.6rem;
    background: var(--primary-container); color: var(--on-primary-container);
    border-radius: 9999px; font-size: 0.7rem; font-weight: 700;
    text-transform: uppercase; margin-bottom: 0.5rem;
}
.course-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.5rem; }
.course-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 0.75rem; }
.course-instructor { font-size: 0.85rem; color: var(--on-surface-variant); font-weight: 500; }
.difficulty-stars { color: var(--tertiary); font-size: 0.85rem; letter-spacing: 2px; }

/* ── CTA ── */
.cta-section {
    background: var(--tertiary-container); border-radius: 1.5rem;
    padding: 3rem 2rem; text-align: center;
}
.cta-section h2 { font-size: clamp(1.75rem, 4vw, 2.75rem); font-weight: 800; color: var(--on-tertiary-container); letter-spacing: -0.03em; }
.cta-section p { font-size: 1.15rem; color: rgba(89,74,0,0.75); max-width: 36rem; margin: 1rem auto 0; font-weight: 500; }
.cta-form {
    display: flex; flex-direction: column; gap: 1rem;
    max-width: 28rem; margin: 2rem auto 0;
}
@media (min-width: 640px) { .cta-form { flex-direction: row; } }
.cta-form input {
    flex: 1; padding: 1rem 1.5rem; border: none; border-radius: 9999px;
    background: var(--surface-container-lowest); font-size: 1rem; font-weight: 700;
    font-family: inherit; outline: none;
}
.cta-form input:focus { box-shadow: 0 0 0 3px rgba(109,90,0,0.2); }
.cta-form button {
    padding: 1rem 2rem; background: var(--primary); color: var(--on-primary);
    border: none; border-radius: 9999px; font-weight: 800; font-family: inherit;
    cursor: pointer; box-shadow: 0 4px 0 var(--primary-dim);
    transition: transform 0.2s; white-space: nowrap;
}
.cta-form button:hover { transform: scale(1.05); }

/* ── Footer ── */
.site-footer {
    background: #f8fafc; padding: 3rem 2rem; margin-top: 6rem;
}
[data-theme="dark"] .site-footer { background: #020617; }
.footer-inner {
    display: flex; flex-direction: column; align-items: center; gap: 2rem;
    max-width: 80rem; margin: 0 auto;
}
@media (min-width: 768px) { .footer-inner { flex-direction: row; justify-content: space-between; } }
.footer-brand { font-size: 1.15rem; font-weight: 700; color: var(--on-surface); }
.footer-links { display: flex; gap: 2rem; }
.footer-links a { color: var(--on-surface-variant); text-decoration: none; font-weight: 500; transition: color 0.2s; }
.footer-links a:hover { color: var(--primary); }
.footer-copy { color: var(--on-surface-variant); font-size: 0.9rem; }

/* ── Mobile Bottom Nav ── */
.bottom-nav {
    display: flex; position: fixed; bottom: 0; left: 0; width: 100%; z-index: 50;
    justify-content: space-around; align-items: center;
    height: 5rem; background: var(--surface-container-lowest);
    border-top: 4px solid var(--surface-container-low);
    border-radius: 2rem 2rem 0 0;
    box-shadow: 0 -8px 30px rgba(0,0,0,0.08);
    padding-bottom: env(safe-area-inset-bottom);
}
@media (min-width: 768px) { .bottom-nav { display: none; } }
.bottom-nav-item {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    color: var(--on-surface-variant); font-size: 0.7rem; font-weight: 500;
    text-decoration: none; padding: 0.25rem 0.75rem; transition: all 0.2s;
    border-radius: 9999px; gap: 0.15rem;
}
.bottom-nav-item.active {
    background: rgba(0,109,63,0.12); color: var(--primary);
    transform: translateY(-4px) scale(1.1);
    box-shadow: 0 4px 0 var(--primary);
}
.bottom-nav-item svg { width: 1.5rem; height: 1.5rem; }

/* ── Sections spacing ── */
.page-sections { display: flex; flex-direction: column; gap: 5rem; padding: 3rem 0; }