/* KAKZ (KAKURO) — style kawaii sticker (standard FACETA, cf BACKLOG.md
   §PIVOT DESIGN / §PROGRAMME AUTONOME, vague 3 : 26/66, suite alphabétique
   après `jumpz`). Override LOCAL à kakz, chargé APRÈS /_kit/kit-design.css
   (même patron que faceta/triplo/mazz/melz/atouz/awalo/boxz) : contour épais
   net, aplats + une seule ombre plate (zéro flou), reflet kawaii en 2ᵉ couche
   de `background`, formes rondes. Remplace l'ancien mélange glassmorphism +
   CSS mort (variables jamais définies, `--text`/`--panel-border`/`--grid-bg`
   etc.). Le plateau (<canvas>, cf src/game.js) garde sa palette dédiée,
   choisie pour la lisibilité des chiffres/indices — seul le CHROME (HUD,
   toolbar, clavier, overlays) reçoit le traitement kawaii complet. */

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

:root {
  --dark: #171a33;
  --light: #fbf9f4;
  --accent: #5b9dff;
  --accent-dark: #2f5fc9;
  --gold: #ffc94d;

  /* (C8) panneaux en dégradé 2 tons (matière), pas un aplat plat. */
  --panel: linear-gradient(160deg, #232853 0%, #171933 100%);
  --panel-2: linear-gradient(150deg, #2b3164 0%, #1c2044 100%);
  --field: linear-gradient(165deg, #1b1e3c 0%, #101126 100%);

  /* Contour : --toon-outline ADAPTATIF (accent clair sur fond sombre, encre foncée sur
     fond clair) pour panneaux/chips/cartes ; --toon-outline-ink TOUJOURS foncé, pour
     les éléments posés sur un fond vif (boutons pleins), lisible dans les
     deux thèmes (même leçon FACETA C7). */
  --toon-outline: var(--accent);
  --toon-outline-ink: #0d1024;
  --toon-outline-w: 2.5px;
  --kawaii-sheen: radial-gradient(circle at 30% 26%, rgba(255, 255, 255, .35), rgba(255, 255, 255, 0) 48%);

  --border: var(--toon-outline-w) solid var(--toon-outline);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 0 var(--toon-outline-ink);
  --shadow-lg: 0 6px 0 var(--toon-outline-ink);

  color-scheme: dark light;
}

html[data-theme="light"] {
  --toon-outline: #1d4ed8;
  --toon-outline-ink: #1d4ed8;
  --panel: #ffffff;
  --panel-2: #eef2ff;
  --field: #f4f6ff;
  --gold: #c98a12;
}

html, body {
  margin: 0;
  min-height: 100%;
}

body {
  background: var(--dark);
  color: #fff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  font-size: 16px;
  line-height: 1.5;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  overscroll-behavior: none;
}

html[data-theme="light"] body {
  background: var(--light);
  color: var(--toon-outline-ink);
}

#wrap {
  display: flex;
  flex-direction: column;
  height: 100vh;
  max-height: 100dvh;
  max-width: 100%;
  overflow: hidden;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem 0.4rem;
  flex-wrap: wrap;
  flex: none;
}

.brand {
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: .14em;
}
.brand b { color: var(--accent); }

.hud {
  flex: 1;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
  min-width: 0;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--panel-2);
  border: var(--border);
  box-shadow: 0 3px 0 var(--toon-outline-ink);
  border-radius: 20px;
  padding: 0.4rem 0.8rem;
  font-size: 0.8rem;
  font-weight: 700;
  white-space: nowrap;
  color: var(--toon-outline);
}
.chip .ico { width: 16px; height: 16px; flex: none; display: block; }

#mistakes-chip.warn { color: var(--gold); border-color: color-mix(in srgb, var(--gold) 55%, var(--toon-outline)); }

.toolbar {
  display: flex;
  gap: 0.5rem;
  padding: 0.3rem 1rem 0.6rem;
  flex-wrap: wrap;
  justify-content: center;
  flex: none;
}

.tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.5rem 0.8rem;
  background: var(--panel-2);
  border: var(--border);
  box-shadow: 0 3px 0 var(--toon-outline-ink);
  border-radius: var(--radius-sm);
  color: var(--toon-outline);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform .12s, box-shadow .12s;
}
.tool-btn .ico svg { width: 18px; height: 18px; flex: none; display: block; }
.tool-btn .cost { color: var(--toon-outline); font-weight: 800; font-size: 0.8rem; }

.tool-btn:active:not(:disabled) {
  transform: translateY(2px);
  box-shadow: 0 1px 0 var(--toon-outline-ink);
}

.tool-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.tool-btn.insufficient {
  border-color: #ff5d6c;
  box-shadow: 0 3px 0 #a3212c;
}

.tool-btn.tool-ad { border-color: var(--gold); box-shadow: 0 3px 0 color-mix(in srgb, var(--gold) 60%, #000); }
.tool-btn.tool-ad .cost, .tool-btn.tool-ad .ico { color: var(--gold); }

.board-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  overflow: hidden;
  min-height: 0;
}

#canvas {
  max-width: 100%;
  max-height: 100%;
  display: block;
  touch-action: none;
  border-radius: var(--radius);
  border: var(--border);
  box-shadow: var(--shadow-lg);
}

/* ---- pavé numérique ---- */

.keypad {
  /* Les chiffres restent ordonnés 1->9 même en lecture RTL. */
  direction: ltr;
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 6px;
  padding: 8px 12px calc(8px + env(safe-area-inset-bottom));
  background: var(--panel);
  flex: none;
}

.key {
  appearance: none;
  min-width: 0;
  width: auto;
  padding: 10px 0;
  font: inherit;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--toon-outline);
  background: var(--panel-2);
  border: var(--border);
  box-shadow: 0 3px 0 var(--toon-outline-ink);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform .12s, box-shadow .12s;
  touch-action: manipulation;
  display: flex;
  align-items: center;
  justify-content: center;
}
.key svg { width: 18px; height: 18px; display: block; }

.key:active { transform: translateY(2px); box-shadow: 0 1px 0 var(--toon-outline-ink); }

.key-wide { grid-column: span 4; }
#key-erase { grid-column: span 5; font-size: 1.3rem; }

.key.active {
  background: linear-gradient(180deg, var(--accent), var(--accent-dark));
  border-color: var(--toon-outline-ink);
  color: #fff;
  box-shadow: 0 3px 0 var(--toon-outline-ink);
}

footer {
  padding: 0.5rem 1rem;
  text-align: center;
  font-size: 0.8rem;
  opacity: .75;
  background: var(--panel);
  flex: none;
}

#toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--panel);
  border: var(--border);
  color: #fff;
  padding: 0.7rem 1.2rem;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  font-weight: 700;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
  max-width: 86vw;
  text-align: center;
}
html[data-theme="light"] #toast { color: var(--toon-outline-ink); }
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---- overlays ---- */

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 10, 20, .72);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  padding: 1rem;
}

.overlay.show { opacity: 1; pointer-events: auto; }

.card {
  background: var(--panel);
  border: var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  max-width: 92%;
  width: 380px;
  max-height: 90%;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  text-align: center;
  color: #fff;
  animation: card-in .3s cubic-bezier(.175,.885,.32,1.275);
}
html[data-theme="light"] .card { color: var(--toon-outline-ink); }

@keyframes card-in {
  from { transform: scale(.92) translateY(8px); opacity: 0; }
  to { transform: none; opacity: 1; }
}

.card.home { max-width: 350px; }

.card h2 { margin: 0 0 0.3rem; font-size: 1.4rem; font-weight: 900; }

.logo {
  font-size: 2.3rem;
  font-weight: 900;
  margin-bottom: 0.4rem;
  letter-spacing: .5px;
}
.logo b { color: var(--accent); }

.sub { font-size: 0.95rem; opacity: .75; margin-bottom: 1.2rem; }

.level-badge {
  margin: 1rem 0 0.5rem;
  padding: 1rem 0.75rem;
  border-radius: var(--radius-sm);
  background: var(--panel-2);
  border: var(--border);
}

.level-badge-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 0.7;
}

.level-badge-value {
  font-size: 2.6rem;
  font-weight: 900;
  line-height: 1.1;
  color: var(--accent);
}

.level-badge-chapter { font-size: 0.8rem; opacity: 0.8; margin-top: 2px; }

.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin: 0.75rem 0 1.2rem;
  padding: 0.75rem;
  background: var(--panel-2);
  border: var(--border);
  border-radius: var(--radius-sm);
}
.stat { text-align: center; }
.stat .lbl { font-size: 0.72rem; opacity: .65; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 0.25rem; }
.stat .val { font-size: 1.3rem; font-weight: 800; color: var(--accent); }

.big {
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--accent);
  margin: 0.9rem 0 0.3rem;
}

.btn-primary, .btn-ghost {
  width: 100%;
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 800;
  cursor: pointer;
  margin: 0.4rem 0;
  position: relative;
  overflow: hidden;
  transition: transform .12s, box-shadow .12s;
}
.btn-primary::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--kawaii-sheen);
  pointer-events: none;
}

.btn-primary {
  background: linear-gradient(180deg, var(--accent), var(--accent-dark));
  color: #fff;
  border: var(--toon-outline-w) solid var(--toon-outline-ink);
  box-shadow: 0 4px 0 var(--toon-outline-ink);
}
.btn-primary:active { transform: translateY(3px); box-shadow: 0 1px 0 var(--toon-outline-ink); }

.btn-ghost {
  background: var(--panel-2);
  color: var(--toon-outline);
  border: var(--border);
  box-shadow: 0 4px 0 var(--toon-outline-ink);
}
.btn-ghost:active { transform: translateY(3px); box-shadow: 0 1px 0 var(--toon-outline-ink); }

/* ---- sélecteur de niveaux ---- */

.levels-card {
  width: min(420px, 92vw);
  max-height: 86vh;
  display: flex;
  flex-direction: column;
  padding: 1.4rem 1rem;
}

.levels-card h2 { margin: 0 0 0.75rem; text-align: center; }

.chapter-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.chapter-label { flex: 1; text-align: center; min-width: 0; }
.chapter-label-name { font-size: 0.9rem; font-weight: 700; }
.chapter-label-range { font-size: 0.78rem; opacity: 0.65; }

.nav-arrow {
  width: 40px;
  flex: 0 0 auto;
  padding: 0.5rem 0;
  font-size: 1.2rem;
  line-height: 1;
  margin: 0;
}
.nav-arrow:disabled { opacity: 0.35; cursor: not-allowed; }

.level-grid {
  direction: ltr;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  overflow-y: auto;
  padding: 4px;
  margin-bottom: 0.75rem;
  -webkit-overflow-scrolling: touch;
}

.level-cell {
  appearance: none;
  width: auto;
  min-width: 0;
  aspect-ratio: 1;
  padding: 0;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--toon-outline);
  background: var(--panel-2);
  border: var(--border);
  box-shadow: 0 3px 0 var(--toon-outline-ink);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform .12s, box-shadow .12s;
}
.level-cell:active:not(:disabled) { transform: translateY(2px); box-shadow: 0 1px 0 var(--toon-outline-ink); }

.level-cell.done {
  border-color: #3aff8f;
  color: #3aff8f;
}

.level-cell.current {
  background: linear-gradient(180deg, var(--accent), var(--accent-dark));
  border-color: var(--toon-outline-ink);
  color: #fff;
}

.level-cell.locked { opacity: 0.35; cursor: not-allowed; }

@media (max-width: 480px) {
  .card { padding: 1.3rem; }
  .logo { font-size: 1.9rem; }
  .level-badge-value { font-size: 2.1rem; }
  .level-grid { gap: 6px; }
  .keypad { gap: 4px; padding: 6px 8px calc(6px + env(safe-area-inset-bottom)); }
  .key { padding: 9px 0; font-size: 0.95rem; }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}