/* ══════════════════════════════════════════════════════════════════════
   Uzbilim marketing site — Neo-retro pixel theme (light mode)
   Ported from the Uzbilim Telegram Mini App design system's light theme:
   Handjet (body/UI) + Pixelify Sans (display), cream/maroon/gold palette,
   hard-edged 2px ink borders, offset drop shadows, uppercase UI text.
   ══════════════════════════════════════════════════════════════════════ */

@font-face {
  font-family: 'Handjet';
  src: url('../fonts/Handjet-Variable.ttf') format('truetype-variations'),
       url('../fonts/Handjet-Variable.ttf') format('truetype');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Pixelify Sans';
  src: url('../fonts/PixelifySans-Variable.ttf') format('truetype-variations'),
       url('../fonts/PixelifySans-Variable.ttf') format('truetype');
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

:root {
  /* surfaces (theme.ts light branch) */
  --c-bg: #fdf6e3;
  --c-surface: #fff8ea;
  --c-surface-alt: #f5ecd0;
  --c-glass-card: #f5ecd0cc;
  --c-border: #3a2c1e;

  /* text */
  --c-text: #231a12;
  --c-text-sub: #6b5a44;
  --c-text-muted: #a89878;

  /* accents */
  --c-maroon: #9b1c37;
  --c-maroon-strong: #7f172d;
  --c-maroon-soft: #f0d9d1;
  --c-gold: #f2b134;        /* fills/backgrounds/icon tints -- bright brand gold */
  --c-gold-text: #8c6c14;   /* B1-light accent -- same gold family, calibrated for text/icon contrast on cream */
  --c-red: #a86026;         /* B2-light accent -- warm copper, used for "energetic" icon tints */
  --c-green: #288c5a;       /* MASTERED_GREEN light */
  --c-teal: #1e8c78;        /* A2-light accent */

  /* CEFR level accents (from theme.ts LEVEL_ACCENT, light variant) */
  --lvl-a1: 40, 120, 168;
  --lvl-a2: 30, 140, 120;
  --lvl-b1: 140, 108, 20;
  --lvl-b2: 168, 96, 38;
  --lvl-c1: 155, 28, 55;
  --lvl-c2: 108, 58, 145;

  /* type */
  --f-body: 'Handjet', ui-sans-serif, system-ui, sans-serif;
  --f-display: 'Pixelify Sans', var(--f-body);

  /* retro shadow/border language */
  --shadow-sm: 3px 3px 0 0 var(--c-border);
  --shadow-md: 5px 5px 0 0 var(--c-border);
  --shadow-lg: 8px 8px 0 0 var(--c-border);

  --radius: 14px;
  --radius-sm: 10px;
  --wrap: 1180px;
}

/* ── Reset ─────────────────────────────────────────────────────────────── */
* , *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 100%;
  scrollbar-width: none;      /* Firefox */
  -ms-overflow-style: none;   /* legacy Edge / IE */
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
  display: none;              /* Chrome, Safari, Opera */
  width: 0;
  height: 0;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * , *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--f-body);
  font-variation-settings: 'ELSH' 2, 'ELGR' 1;
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: 0.03em;
  scrollbar-width: none;
  -ms-overflow-style: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

button { font: inherit; cursor: pointer; background: none; border: none; color: inherit; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 24px;
}

.pxi {
  display: inline-block;
  vertical-align: -0.15em;
  shape-rendering: crispEdges;
  flex-shrink: 0;
}

/* ── Headings ──────────────────────────────────────────────────────────── */
h1, h2, h3, h4, h5 {
  font-family: var(--f-display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.01em;
  color: var(--c-text);
}

code {
  font-family: var(--f-body);
  background: var(--c-surface-alt);
  border: 2px solid var(--c-border);
  border-radius: 6px;
  padding: 0 6px;
  font-size: 0.9em;
}

strong { font-weight: 800; color: var(--c-text); }

/* ── Grain / scanline overlay ──────────────────────────────────────────── */
.grain-overlay {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0.5;
  mix-blend-mode: overlay;
  background-image:
    repeating-linear-gradient(0deg, rgba(35,26,18,0.05) 0px, rgba(35,26,18,0.05) 1px, transparent 1px, transparent 3px);
}

/* ── Reveal-on-scroll ──────────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s cubic-bezier(0.22,1,0.36,1), transform 0.6s cubic-bezier(0.22,1,0.36,1);
  transition-delay: var(--delay, 0ms);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Buttons ───────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--f-body);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: 2px solid var(--c-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  transition: transform 0.08s ease, box-shadow 0.08s ease;
  white-space: nowrap;
}
.btn:active {
  transform: translate(3px, 3px);
  box-shadow: none;
}
.btn-primary {
  background: var(--c-maroon);
  color: #fff8ea;
}
.btn-primary:hover { background: var(--c-maroon-strong); }
.btn-ghost {
  background: var(--c-surface-alt);
  color: var(--c-text);
}
.btn-ghost:hover { background: var(--c-surface); }
.btn-lg { padding: 15px 26px; font-size: 1rem; }
.btn-sm { padding: 9px 16px; font-size: 0.8rem; box-shadow: var(--shadow-sm); }

/* ── Nav ───────────────────────────────────────────────────────────────── */
.site-nav {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  background: rgba(253,246,227,0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 2px solid transparent;
  transition: border-color 0.25s ease, background 0.25s ease;
}
.site-nav.scrolled {
  border-bottom-color: var(--c-border);
  background: rgba(253,246,227,0.92);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-mark { width: 32px; height: 32px; }
.brand-name {
  font-family: var(--f-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--c-text);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.nav-links a {
  color: var(--c-text-sub);
  transition: color 0.15s ease;
  position: relative;
  padding-block: 4px;
}
.nav-links a:hover { color: var(--c-gold-text); }

.nav-cta { display: flex; align-items: center; gap: 14px; }

/* ── Language toggle (UZ / RU) ─────────────────────────────────────────── */
.lang-toggle {
  display: inline-flex;
  border: 2px solid var(--c-border);
  border-radius: 999px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  background: var(--c-surface-alt);
  flex-shrink: 0;
}
.lang-btn {
  padding: 8px 14px;
  font-family: var(--f-body);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-text-sub);
  transition: background-color 0.15s ease, color 0.15s ease;
}
.lang-btn:first-child { border-right: 2px solid var(--c-border); }
.lang-btn:hover { color: var(--c-text); }
.lang-btn.is-active {
  background: var(--c-gold);
  color: #171009;
}
.lang-btn.is-active:hover { color: #171009; }

.lang-toggle-mobile { display: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border: 2px solid var(--c-border);
  border-radius: 8px;
  background: var(--c-surface-alt);
  box-shadow: var(--shadow-sm);
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--c-text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ══════════════════════════ HERO ══════════════════════════ */
.hero {
  position: relative;
  padding-top: calc(72px + 76px);
  padding-bottom: 64px;
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  inset: -10% -10% auto -10%;
  height: 780px;
  background:
    radial-gradient(52% 60% at 74% 22%, rgba(168,96,38,0.16), transparent 70%),
    radial-gradient(40% 46% at 18% 8%, rgba(242,177,52,0.22), transparent 70%),
    radial-gradient(60% 60% at 50% 0%, rgba(155,28,55,0.12), transparent 65%);
  pointer-events: none;
  z-index: 0;
}
.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 48px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--c-gold-text);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: rgba(242,177,52,0.16);
  border: 2px solid rgba(140,108,20,0.35);
  border-radius: 999px;
  padding: 7px 14px;
  margin-bottom: 22px;
}
.hero-title {
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  margin-bottom: 22px;
  color: var(--c-text);
}
.hero-sub {
  font-size: 1.08rem;
  color: var(--c-text-sub);
  max-width: 54ch;
  margin-bottom: 32px;
  letter-spacing: 0.02em;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 20px;
}
.hero-handle {
  font-size: 0.85rem;
  color: var(--c-text-muted);
  letter-spacing: 0.04em;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}
.hero-phone {
  width: 100%;
  max-width: 480px;
  height: auto;
  border: 3px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}
.floating-chip {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--c-surface);
  border: 2px solid var(--c-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  padding: 10px 14px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--c-text);
  animation: float 5s ease-in-out infinite;
}
.floating-chip .pxi { color: var(--c-gold-text); }
.chip-a { top: 8%; left: -4%; animation-delay: 0s; }
.chip-b { top: 10%; right: -6%; animation-delay: 1.2s; }
.chip-b .pxi { color: var(--c-red); }
.chip-c { bottom: 6%; left: 2%; animation-delay: 2.4s; }
.chip-c .pxi { color: var(--c-teal); }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ══════════════════════════ STATS STRIP ══════════════════════════ */
.stats-strip {
  border-block: 2px solid var(--c-border);
  background: var(--c-surface);
  padding-block: 28px;
}
.stats-track {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px;
  text-align: center;
}
.stat-item { display: flex; flex-direction: column; gap: 4px; }
.stat-num {
  font-family: var(--f-display);
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-weight: 700;
  color: var(--c-gold-text);
}
.stat-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-text-muted);
}

/* ══════════════════════════ SECTIONS ══════════════════════════ */
.section { padding-block: 96px; }
.section-alt { background: var(--c-surface); border-block: 2px solid var(--c-border); }

.kicker {
  color: var(--c-gold-text);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  max-width: 20ch;
  margin-bottom: 18px;
}
.section-sub {
  color: var(--c-text-sub);
  max-width: 68ch;
  font-size: 1.02rem;
  margin-bottom: 48px;
}

/* ── Feature cards (Why section) ───────────────────────────────────────── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.feature-card {
  background: var(--c-surface-alt);
  border: 2px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 26px 22px;
}
.feature-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  border: 2px solid var(--c-border);
  background: var(--c-surface-alt);
  background: color-mix(in srgb, var(--icon-tint) 24%, var(--c-surface-alt));
  color: var(--icon-tint);
  margin-bottom: 18px;
}
.feature-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.feature-card p { color: var(--c-text-sub); font-size: 0.95rem; letter-spacing: 0.02em; }

/* ── Steps (How it works) ──────────────────────────────────────────────── */
.steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.step {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 24px;
  padding-block: 26px;
  border-top: 2px solid var(--c-border);
}
.step:last-child { border-bottom: 2px solid var(--c-border); }
.step-num {
  font-family: var(--f-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--c-maroon-strong);
  -webkit-text-stroke: 1px var(--c-gold-text);
}
.step-body h3 { font-size: 1.3rem; margin-bottom: 8px; }
.step-body p { color: var(--c-text-sub); font-size: 0.98rem; max-width: 62ch; }

/* ── Curriculum level cards ────────────────────────────────────────────── */
.level-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-bottom: 34px;
}
.level-card {
  position: relative;
  border: 2px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 22px 16px;
  background:
    linear-gradient(160deg, rgba(var(--lvl), 0.22), rgba(var(--lvl), 0.06) 60%),
    var(--c-surface-alt);
  overflow: hidden;
}
.level-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-top: 4px solid rgb(var(--lvl));
}
.level-badge {
  display: inline-block;
  font-family: var(--f-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: rgb(var(--lvl));
  margin-bottom: 10px;
}
.level-name { font-weight: 700; font-size: 0.95rem; margin-bottom: 6px; }
.level-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.74rem;
  color: var(--c-text-muted);
  letter-spacing: 0.02em;
}
.level-locked { opacity: 0.72; }
.level-locked .level-badge { color: var(--c-text-muted); }

.curriculum-note {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--c-surface-alt);
  border: 2px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 18px 20px;
  color: var(--c-gold-text);
}
.curriculum-note p { color: var(--c-text-sub); font-size: 0.95rem; }
.curriculum-note strong { color: var(--c-text); }

/* ── XP / gamification cards ───────────────────────────────────────────── */
.xp-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}
.xp-card {
  text-align: center;
  background: var(--c-surface-alt);
  border: 2px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 26px 16px;
}
.xp-icon {
  width: 44px; height: 44px;
  margin: 0 auto 14px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 10px;
  border: 2px solid var(--c-border);
  background: rgba(242,177,52,0.22);
  color: var(--c-gold-text);
}
.xp-amount {
  font-family: var(--f-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--c-maroon-strong);
  margin-bottom: 4px;
}
.xp-label {
  font-size: 0.78rem;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.retention-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.retention-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--c-surface-alt);
  border: 2px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 20px;
}
.retention-item > .pxi { color: var(--c-red); margin-top: 4px; }
.retention-item h4 { font-size: 1.02rem; margin-bottom: 6px; }
.retention-item p { color: var(--c-text-sub); font-size: 0.92rem; }

/* ── Placement batch flow ──────────────────────────────────────────────── */
.batch-flow {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 44px;
}
.batch-node {
  flex: 1 1 200px;
  background: var(--c-surface-alt);
  border: 2px solid var(--c-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.batch-node-strong {
  background: var(--c-maroon-soft);
  background: color-mix(in srgb, var(--c-maroon) 30%, var(--c-surface-alt));
  border-color: var(--c-border);
}
.batch-level { font-family: var(--f-display); font-weight: 700; font-size: 1.05rem; color: var(--c-gold-text); }
.batch-req { font-size: 0.78rem; color: var(--c-text-sub); letter-spacing: 0.02em; }
.batch-arrow { color: var(--c-text-muted); flex-shrink: 0; }

.placement-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.placement-card {
  background: var(--c-surface-alt);
  border: 2px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 24px 22px;
}
.placement-card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--c-gold-text);
  margin-bottom: 12px;
}
.placement-card-head h3 { font-size: 1.05rem; color: var(--c-text); }
.placement-card p { color: var(--c-text-sub); font-size: 0.92rem; }

/* ── Tech / trust ───────────────────────────────────────────────────────── */
.stack-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 44px;
}
.stack-chip {
  border: 2px solid var(--c-border);
  border-radius: 999px;
  background: var(--c-surface-alt);
  box-shadow: var(--shadow-sm);
  padding: 10px 18px;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--c-text);
}
.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.tech-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 18px;
  border: 2px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-bg);
  box-shadow: var(--shadow-sm);
}
.tech-item .pxi { color: var(--c-teal); margin-top: 3px; }
.tech-item p { color: var(--c-text-sub); font-size: 0.92rem; }
.tech-item strong { color: var(--c-text); }

/* ── Final CTA banner ───────────────────────────────────────────────────── */
.cta-banner {
  padding-block: 100px;
  text-align: center;
  position: relative;
  background:
    radial-gradient(60% 100% at 50% 0%, rgba(155,28,55,0.14), transparent 70%),
    var(--c-surface);
  border-top: 2px solid var(--c-border);
}
.cta-inner { display: flex; flex-direction: column; align-items: center; gap: 18px; }
.cta-logo { width: 64px; height: 64px; margin-bottom: 6px; }
.cta-banner h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); max-width: 18ch; }
.cta-banner p { color: var(--c-text-sub); max-width: 50ch; margin-bottom: 10px; }

/* ══════════════════════════ FOOTER ══════════════════════════ */
.site-footer {
  border-top: 2px solid var(--c-border);
  background: var(--c-bg);
  padding-block: 56px 28px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 40px;
}
.footer-brand p { color: var(--c-text-muted); font-size: 0.88rem; margin-top: 10px; }
.footer-col { display: flex; flex-direction: column; gap: 12px; }
.footer-col h5 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-text-muted);
  margin-bottom: 4px;
}
.footer-col a {
  font-size: 0.9rem;
  color: var(--c-text-sub);
  transition: color 0.15s ease;
}
.footer-col a:hover { color: var(--c-gold-text); }
.footer-bottom {
  border-top: 2px solid var(--c-border);
  padding-top: 22px;
}
.footer-bottom p { font-size: 0.8rem; color: var(--c-text-muted); text-align: center; }

/* ══════════════════════════ RESPONSIVE ══════════════════════════ */
@media (max-width: 1040px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .level-grid { grid-template-columns: repeat(3, 1fr); }
  .xp-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-grid { grid-template-columns: repeat(2, 1fr); }
  .placement-grid { grid-template-columns: 1fr; }
  .stats-track { grid-template-columns: repeat(3, 1fr); row-gap: 24px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; margin-bottom: 12px; max-width: 380px; margin-inline: auto; }
  .floating-chip { position: static; margin-top: 10px; display: inline-flex; animation: none; }
  .hero-visual { display: flex; flex-direction: column; align-items: center; }
  .hero-copy { text-align: center; }
  .hero-actions { justify-content: center; }
  .hero-sub { margin-inline: auto; }
  .chip-a, .chip-b, .chip-c { position: static; }
}

@media (max-width: 780px) {
  .nav-links {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--c-surface);
    border-bottom: 2px solid var(--c-border);
    padding: 8px 24px 18px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.22s ease, opacity 0.22s ease;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-links a { padding-block: 12px; width: 100%; border-top: 1px solid rgba(58,44,30,0.12); }
  .nav-links a:first-child { border-top: none; }
  .nav-toggle { display: flex; }
  .nav-cta .btn-sm { display: none; }
  .lang-toggle-desktop { display: none; }
  .lang-toggle-mobile {
    display: inline-flex;
    margin-top: 14px;
    margin-bottom: 4px;
    padding-top: 14px;
    border-top: 1px solid rgba(58,44,30,0.12);
  }

  .step { grid-template-columns: 56px 1fr; }
  .step-num { font-size: 1.4rem; }
}

@media (max-width: 680px) {
  .section { padding-block: 64px; }
  .feature-grid { grid-template-columns: 1fr; }
  .level-grid { grid-template-columns: repeat(2, 1fr); }
  .xp-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-grid { grid-template-columns: 1fr; }
  .retention-grid { grid-template-columns: 1fr; }
  .stats-track { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .batch-flow { flex-direction: column; align-items: stretch; }
  .batch-arrow { transform: rotate(90deg); align-self: center; }
  .hero { padding-top: calc(72px + 48px); }
}

@media (max-width: 420px) {
  .level-grid { grid-template-columns: 1fr 1fr; }
  .xp-grid { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .wrap { padding-inline: 18px; }
}