/* ============================================================
   PlayLearn — Claymorphism theme (UI/UX Pro Max design system)
   Style: soft 3D, chunky, toy-like. Fonts: Baloo 2 + Comic Neue.
   Tablet-first, big touch targets, soft 200ms press, a11y-checked.
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Baloo+2:wght@400;500;600;700;800&family=Comic+Neue:wght@300;400;700&display=swap');

:root {
  /* Design tokens (from design-system/playlearn/MASTER.md) */
  --color-primary:#2563EB; --color-on-primary:#FFFFFF;
  --color-secondary:#F59E0B; --color-accent:#EC4899;
  --color-background:#EFF6FF; --color-foreground:#0F172A;
  --color-muted:#F1F5FD; --color-border:#E4ECFC;
  --color-destructive:#DC2626; --color-ring:#2563EB;

  --radius:22px; --radius-sm:14px;
  --border:3px solid var(--color-border);
  /* Claymorphism: soft outer drop + inner highlight (no hard lines) */
  --clay: 0 10px 22px rgba(37,99,235,.14), 0 3px 6px rgba(15,23,42,.06),
          inset 0 2px 3px rgba(255,255,255,.9), inset 0 -4px 8px rgba(37,99,235,.07);
  --clay-press: 0 4px 10px rgba(37,99,235,.16),
          inset 0 3px 7px rgba(37,99,235,.18), inset 0 -2px 3px rgba(255,255,255,.7);
  --ease: 200ms cubic-bezier(.22,1,.36,1);
}

* { box-sizing:border-box; }
html { -webkit-text-size-adjust:100%; }
body {
  margin:0; min-height:100dvh; overflow-x:clip;
  font-family:"Comic Neue", system-ui, sans-serif; font-size:18px; line-height:1.6;
  color:var(--color-foreground);
  background:
    radial-gradient(1100px 480px at 12% -8%, #DBE8FF 0%, transparent 60%),
    radial-gradient(900px 460px at 105% 0%, #FFE9F4 0%, transparent 55%),
    var(--color-background);
}

h1,h2,h3,.brand { font-family:"Baloo 2", system-ui, sans-serif; line-height:1.12; color:var(--color-foreground); }
h1 { font-size:clamp(2rem, 5vw, 3rem); font-weight:800; letter-spacing:-.01em; }
h2 { font-size:clamp(1.4rem, 3.2vw, 2rem); font-weight:700; margin-top:2.4rem; }
a { color:var(--color-primary); }

.container { max-width:1080px; margin:0 auto; padding:24px 18px 64px; }

/* ---- Header -------------------------------------------------- */
.site-header {
  position:sticky; top:0; z-index:100;
  display:flex; justify-content:space-between; align-items:center;
  padding:14px 20px; background:rgba(255,255,255,.82); backdrop-filter:blur(10px);
  border-bottom:3px solid var(--color-border);
}
.brand {
  display:inline-flex; align-items:center; gap:10px;
  font-size:1.5rem; font-weight:800; color:var(--color-primary); text-decoration:none;
}
.brand::before {
  content:""; width:30px; height:30px; border-radius:10px;
  background:linear-gradient(135deg, var(--color-secondary), var(--color-accent));
  box-shadow:var(--clay); transform:rotate(-8deg);
}
.lang-switch select {
  font-family:inherit; font-size:1rem; font-weight:700; color:var(--color-primary);
  padding:10px 14px; min-height:44px; border:var(--border); border-radius:var(--radius-sm);
  background:#fff; box-shadow:var(--clay); cursor:pointer;
}

/* ---- Breadcrumbs --------------------------------------------- */
.breadcrumbs { font-size:.95rem; color:#5b6478; margin:.4rem 0 1.4rem; }
.breadcrumbs a { color:var(--color-primary); text-decoration:none; font-weight:700; }

/* ---- Hero / intro -------------------------------------------- */
.hero {
  display:grid; grid-template-columns:1.1fr .9fr; gap:36px; align-items:center;
  background:linear-gradient(135deg, #fff 0%, var(--color-muted) 100%);
  border:var(--border); border-radius:calc(var(--radius) + 8px);
  padding:clamp(26px,5vw,52px); margin:.5rem 0 2rem; box-shadow:var(--clay);
  position:relative; overflow:hidden;
}
.hero-copy { position:relative; z-index:2; }
.intro { font-size:1.12rem; color:#2b3346; max-width:52ch; }
.hero-cta { margin-top:1.4rem; }
.btn-play {
  display:inline-flex; align-items:center; gap:10px; font-family:"Baloo 2",sans-serif;
  font-weight:700; font-size:1.1rem; color:#fff; text-decoration:none;
  background:linear-gradient(135deg, var(--color-primary), #4f7cf5);
  border-radius:999px; padding:14px 26px; min-height:52px; box-shadow:var(--clay);
  transition:transform var(--ease), box-shadow var(--ease), filter var(--ease);
}
.btn-play:hover { transform:translateY(-2px); filter:brightness(1.05); }
.btn-play svg { width:20px; height:20px; }

/* playful floating tiles */
.hero-visual { position:relative; height:280px; }
.hero-visual .blob {
  position:absolute; inset:8% 8%; border-radius:52px; transform:rotate(-6deg);
  background:radial-gradient(circle at 30% 25%, #FFE9F4, transparent 60%),
            linear-gradient(135deg, var(--color-secondary), var(--color-accent)); opacity:.16;
}
.hero-tile {
  position:absolute; width:130px; background:#fff; border:var(--border); border-radius:var(--radius);
  box-shadow:var(--clay); padding:16px; display:flex; flex-direction:column; gap:8px;
}
.hero-tile .icon-chip { width:46px; height:46px; border-radius:14px; margin:0; }
.hero-tile .icon-chip svg { width:24px; height:24px; }
.hero-tile .lbl { font-family:"Baloo 2",sans-serif; font-weight:700; font-size:.96rem; }
.hero-tile.h1t { top:2%; left:4%; transform:rotate(-7deg); }
.hero-tile.h1t .icon-chip { background:var(--color-primary); }
.hero-tile.h2t { top:26%; right:2%; transform:rotate(5deg); z-index:3; }
.hero-tile.h2t .icon-chip { background:var(--color-secondary); }
.hero-tile.h3t { bottom:2%; left:24%; transform:rotate(3deg); }
.hero-tile.h3t .icon-chip { background:var(--color-accent); }

/* ---- Card grids (bento-ish, playful) ------------------------- */
.card-grid, .game-grid {
  list-style:none; padding:0; margin:1rem 0 0; display:grid; gap:18px;
  /* min(100%, 220px) prevents a track from ever exceeding the viewport
     (root cause of mobile horizontal overflow). */
  grid-template-columns:repeat(auto-fill, minmax(min(100%,220px),1fr));
}
.card, .game-card {
  background:#fff; border:var(--border); border-radius:var(--radius);
  padding:20px; box-shadow:var(--clay);
  transition:transform var(--ease), box-shadow var(--ease);
}
.card:hover, .game-card:hover { transform:translateY(-4px) scale(1.015); }
.card:active, .game-card:active { transform:translateY(0) scale(.99); box-shadow:var(--clay-press); }
.card a, .game-card a {
  text-decoration:none; color:var(--color-foreground); display:flex; flex-direction:column; gap:6px;
}
/* Playful clay icon chip */
.icon-chip {
  width:58px; height:58px; border-radius:18px; display:grid; place-items:center;
  background:var(--color-primary); box-shadow:var(--clay); margin-bottom:10px;
}
.icon-chip svg { width:30px; height:30px; color:#fff; }
.card-h {
  font-family:"Baloo 2",sans-serif; font-weight:700; font-size:1.22rem; line-height:1.2;
  display:flex; align-items:center; gap:8px; flex-wrap:wrap;
}
.card-desc { font-size:.92rem; color:#5b6478; font-family:"Comic Neue",sans-serif; line-height:1.5; }
/* Alternating chunky accent stripe + matching chip color for playful rhythm */
.card-grid > :nth-child(3n+1), .game-grid > :nth-child(3n+1) { border-top:7px solid var(--color-primary); }
.card-grid > :nth-child(3n+2), .game-grid > :nth-child(3n+2) { border-top:7px solid var(--color-secondary); }
.card-grid > :nth-child(3n),   .game-grid > :nth-child(3n)   { border-top:7px solid var(--color-accent); }
.card-grid > :nth-child(3n+1) .icon-chip, .game-grid > :nth-child(3n+1) .icon-chip { background:var(--color-primary); }
.card-grid > :nth-child(3n+2) .icon-chip, .game-grid > :nth-child(3n+2) .icon-chip { background:var(--color-secondary); }
.card-grid > :nth-child(3n)   .icon-chip, .game-grid > :nth-child(3n)   .icon-chip { background:var(--color-accent); }
.game-desc { margin:.4rem 0 0; font-size:.85rem; color:#666; font-family:"Comic Neue",sans-serif; }
.age {
  font-family:"Baloo 2",sans-serif; font-size:.75rem; font-weight:700; color:#3a2a00;
  background:var(--color-secondary); border-radius:999px; padding:2px 9px; white-space:nowrap;
}
/* a11y: deepen amber where white icons sit, to keep ≥3:1 contrast */
.card-grid > :nth-child(3n+2) .icon-chip, .game-grid > :nth-child(3n+2) .icon-chip,
.hero-tile.h2t .icon-chip, .trust-item:nth-child(4n+2) .t-ic { background:#C76A02; }

/* ---- Buttons / play ------------------------------------------ */
.game-launch {
  display:inline-flex; align-items:center; gap:10px;
  font-family:"Baloo 2",sans-serif; font-weight:700; font-size:1.15rem;
  color:var(--color-on-primary);
  background:linear-gradient(135deg, var(--color-primary), #4f7cf5);
  border:0; border-radius:var(--radius); padding:15px 28px; min-height:54px;
  box-shadow:var(--clay); cursor:pointer; touch-action:manipulation;
  transition:transform var(--ease), box-shadow var(--ease), filter var(--ease);
}
.game-launch:hover { transform:translateY(-2px); filter:brightness(1.04); }
.game-launch:active { transform:translateY(1px); box-shadow:var(--clay-press); }
.game-launch svg { width:22px; height:22px; }

/* ---- Game embed / canvas ------------------------------------- */
.game-embed { margin:1.6rem 0; }
.embedded-game {
  background:var(--color-muted); border:var(--border); border-radius:var(--radius);
  padding:20px; box-shadow:var(--clay); margin:1.6rem 0;
}
.game-canvas {
  width:100%; aspect-ratio:4/3; border-radius:var(--radius);
  background:#0f172a; display:flex; align-items:center; justify-content:center;
  color:#fff; box-shadow:inset 0 0 0 4px var(--color-border);
}
/* Slot shown until a real game bundle is dropped in */
.game-canvas.game-slot {
  flex-direction:column; gap:8px; text-align:center; padding:24px;
  background:linear-gradient(135deg, #fff 0%, var(--color-muted) 100%);
  color:var(--color-foreground); box-shadow:inset 0 0 0 3px var(--color-border);
}
.game-slot svg { width:54px; height:54px; color:#fff; background:var(--color-primary);
  border-radius:18px; padding:13px; box-shadow:var(--clay); }
.game-slot .slot-title { font-family:"Baloo 2",sans-serif; font-weight:700; font-size:1.25rem; margin-top:6px; }
.game-slot .slot-sub { color:#5b6478; font-size:.95rem; }
/* Full-screen game overlay (plays edge-to-edge, like the standalone game) */
.game-overlay { position:fixed; inset:0; z-index:9999; background:#0b0f17; }
.game-frame-full { position:absolute; inset:0; width:100%; height:100%; border:0; display:block; }
.game-close {
  position:fixed; z-index:10000;
  top:max(10px, env(safe-area-inset-top)); right:max(10px, env(safe-area-inset-right));
  width:46px; height:46px; border-radius:50%; border:0; cursor:pointer;
  background:rgba(15,18,24,.6); color:#fff; font-size:1.25rem; line-height:1;
  display:grid; place-items:center; -webkit-backdrop-filter:blur(6px); backdrop-filter:blur(6px);
}
.game-close:hover { background:rgba(15,18,24,.85); }

/* ---- FAQ ------------------------------------------------------ */
.faq details {
  background:#fff; border:var(--border); border-radius:var(--radius-sm);
  padding:.8rem 1.1rem; margin:.7rem 0; box-shadow:var(--clay);
}
.faq summary { cursor:pointer; font-family:"Baloo 2",sans-serif; font-weight:700; font-size:1.1rem; }

/* ---- Article body -------------------------------------------- */
.body { max-width:68ch; }
.body h2 { color:var(--color-primary); }

/* ---- Footer --------------------------------------------------- */
.site-footer {
  border-top:3px solid var(--color-border); background:rgba(255,255,255,.7);
  padding:28px 20px; color:#5b6478; text-align:center; font-size:.95rem;
}

/* ---- A11y: focus, reduced motion, touch ---------------------- */
:focus-visible { outline:3px solid var(--color-ring); outline-offset:3px; border-radius:6px; }
a, button, select, summary { min-height:44px; }
.skip-link { position:absolute; left:-9999px; top:0; z-index:200;
  background:var(--color-primary); color:#fff; padding:12px 18px; border-radius:0 0 12px 0;
  font-family:"Baloo 2",sans-serif; font-weight:700; text-decoration:none; }
.skip-link:focus { left:0; }
.lang-go { margin-left:8px; font-family:"Baloo 2",sans-serif; font-weight:700;
  border:var(--border); border-radius:var(--radius-sm); background:#fff; padding:8px 14px;
  min-height:44px; cursor:pointer; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition:none !important; animation:none !important; }
  .card:hover, .game-card:hover, .game-launch:hover { transform:none; }
}
/* ---- Trust band (parent reassurance, playful) ----------------- */
.trust-band {
  display:flex; flex-wrap:wrap; gap:16px 30px; justify-content:center; align-items:center;
  background:#fff; border:var(--border); border-radius:var(--radius);
  padding:20px 26px; box-shadow:var(--clay); margin:0 0 2.4rem;
}
.trust-item { display:flex; align-items:center; gap:12px; font-family:"Baloo 2",sans-serif;
  font-weight:700; font-size:1rem; color:var(--color-foreground); }
.trust-item .t-ic { width:42px; height:42px; border-radius:13px; display:grid; place-items:center;
  box-shadow:var(--clay); flex:0 0 auto; }
.trust-item .t-ic svg { width:22px; height:22px; color:#fff; }
.trust-item:nth-child(4n+1) .t-ic { background:var(--color-primary); }
.trust-item:nth-child(4n+2) .t-ic { background:var(--color-secondary); }
.trust-item:nth-child(4n+3) .t-ic { background:var(--color-accent); }
.trust-item:nth-child(4n)   .t-ic { background:#22A06B; }

/* ---- Game / article polish ------------------------------------ */
.game-head { display:flex; align-items:center; gap:16px; margin-bottom:.4rem; }
.game-head .icon-chip { margin:0; flex:0 0 auto; }
.game-head h1 { margin:0; }
.embedded-game h2 { display:flex; align-items:center; gap:12px; margin-top:0; }
.embedded-game h2 .icon-chip { width:42px; height:42px; border-radius:13px; margin:0; background:var(--color-accent); }
.embedded-game h2 .icon-chip svg { width:22px; height:22px; }
.info-card { background:#fff; border:var(--border); border-radius:var(--radius);
  padding:20px 24px; box-shadow:var(--clay); margin:1.1rem 0; }
.info-card h2 { margin-top:0; }

@media (max-width:760px){
  .hero { grid-template-columns:1fr; gap:8px; }
  .hero-visual { display:none; }
}
@media (max-width:520px){ body{ font-size:17px; } .container{ padding:18px 14px 48px; } .trust-band{ gap:14px 20px; } }