/* Apprendre — Design System: Minecraft Party!
   Colors from spec 03-design-system.md */

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; overflow-x: hidden; } /* scroll vertical de sécurité conservé */

/* ===== VARIABLES ===== */
:root {
  --sky: #87CEEB;
  --grass: #5D9C4A;
  --dirt: #8B5E3C;
  --stone: #808080;
  --gold: #FFD700;
  --lava: #C0392B;
  --deepslate: #2C3E50;
  --water: #3498DB;
  --oak: #A0845C;

  --letter-size-mobile: 6rem;
  --letter-size-tablet: 8rem;
  --letter-size-desktop: 10rem;
  --btn-min: 80px;

  --font-andika: 'Andika', sans-serif;
  --font-pixel: 'Press Start 2P', monospace;
  --font-text: 'Nunito', sans-serif;
}

/* ===== BACKGROUND MINECRAFT CHARACTERS (CSS Pixel Steve) ===== */
#bg-characters {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.bg-char {
  position: absolute;
  bottom: 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: charWalk 6s ease-in-out infinite;
}

/* Steve — CSS pixel art */
.steve {
  position: relative;
  width: 32px;
  height: 64px;
  image-rendering: pixelated;
}

.s-head {
  width: 28px;
  height: 28px;
  margin: 0 auto;
  background: var(--skin, #D2A679);
  border: 2px solid #8B5E3C;
  border-radius: 2px;
  position: relative;
  z-index: 2;
}
.s-head::before {
  content: '';
  position: absolute;
  top: 2px;
  left: 6px;
  width: 6px;
  height: 2px;
  background: #2C3E50;
  box-shadow: 10px 0 0 0 #2C3E50;
}
.s-head::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 10px;
  width: 8px;
  height: 4px;
  background: #8B4513;
  border-radius: 0 0 4px 4px;
}

.s-body {
  width: 24px;
  height: 16px;
  margin: 0 auto;
  background: var(--shirt, #4A90D9);
  position: relative;
  z-index: 1;
}
.s-body::before {
  content: '';
  position: absolute;
  top: 0;
  left: 10px;
  width: 4px;
  height: 8px;
  background: #2C3E50;
  border-radius: 1px;
  box-shadow: 0 10px 0 0 #2C3E50;
}

.s-arm {
  position: absolute;
  width: 6px;
  height: 20px;
  bottom: 16px;
  background: var(--shirt, #4A90D9);
  border-radius: 1px;
}
.s-arm-l {
  left: -6px;
  transform-origin: top center;
  animation: armSwingLeft 0.8s ease-in-out infinite;
}
.s-arm-r {
  right: -6px;
  transform-origin: top center;
  animation: armSwingRight 0.8s ease-in-out infinite;
}

.s-leg {
  position: absolute;
  width: 8px;
  height: 16px;
  bottom: 0;
  background: var(--pants, #2C3E50);
  border-radius: 1px;
}
.s-leg-l {
  left: 4px;
  animation: legWalkLeft 0.8s ease-in-out infinite;
}
.s-leg-r {
  right: 4px;
  animation: legWalkRight 0.8s ease-in-out infinite;
}

.pickaxe {
  font-size: 1.2rem;
  animation: pickSwing 0.6s ease-in-out infinite;
  margin-top: -4px;
}

@keyframes charWalk {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  25% { transform: translateY(-6px) rotate(-1deg); }
  50% { transform: translateY(2px) rotate(0.5deg); }
  75% { transform: translateY(-4px) rotate(-0.5deg); }
}

@keyframes pickSwing {
  0%, 100% { transform: rotate(-25deg) translateX(-3px); }
  50% { transform: rotate(25deg) translateX(3px); }
}

@keyframes armSwingLeft {
  0%, 100% { transform: rotate(-20deg); }
  50% { transform: rotate(20deg); }
}
@keyframes armSwingRight {
  0%, 100% { transform: rotate(20deg); }
  50% { transform: rotate(-20deg); }
}
@keyframes legWalkLeft {
  0%, 100% { transform: rotate(-10deg) translateY(0); }
  50% { transform: rotate(10deg) translateY(2px); }
}
@keyframes legWalkRight {
  0%, 100% { transform: rotate(10deg) translateY(0); }
  50% { transform: rotate(-10deg) translateY(2px); }
}
body {
  font-family: var(--font-text);
  background: linear-gradient(180deg, var(--sky) 0%, #B3E5FC 60%, var(--grass) 60%, var(--grass) 100%);
  min-height: 100vh;
  min-height: 100dvh; /* vrai viewport mobile (barre d'URL dynamique) */
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

/* ===== SCREENS ===== */
.screen {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 600px;
  min-height: 100vh;
  min-height: 100dvh;
  padding: 16px;
  gap: 20px;
  position: relative;
  z-index: 1;
}
.screen.active { display: flex; }

/* ===== WELCOME SCREEN ===== */
.welcome-title {
  font-family: var(--font-pixel);
  font-size: 1.2rem;
  color: var(--deepslate);
  text-align: center;
  text-shadow: 2px 2px 0 rgba(0,0,0,0.1);
  margin-bottom: 8px;
}
.welcome-subtitle {
  font-family: var(--font-text);
  font-size: 1rem;
  color: var(--deepslate);
  margin-bottom: 24px;
}

.lang-select {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
}
.lang-btn {
  width: 72px;
  height: 72px;
  border: 4px solid var(--stone);
  border-radius: 4px;
  cursor: pointer;
  transition: transform 0.15s, border-color 0.15s;
  background: white;
  padding: 4px;
}
.lang-btn:hover { transform: scale(1.1); }
.lang-btn.selected { border-color: var(--gold); box-shadow: 0 0 0 3px var(--gold); }

.lang-btn svg { width: 100%; height: 100%; }

.btn-play {
  font-family: var(--font-pixel);
  font-size: 1.2rem;
  background: var(--grass);
  color: white;
  border: 4px solid #4A7A3A;
  padding: 20px 48px;
  cursor: pointer;
  border-radius: 4px;
  box-shadow: 0 6px 0 #4A7A3A;
  transition: transform 0.1s, box-shadow 0.1s;
  user-select: none;
}
.btn-play:active {
  transform: translateY(4px);
  box-shadow: 0 2px 0 #4A7A3A;
}
.btn-play:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: 0 6px 0 #4A7A3A;
}

/* ===== LETTER SCREEN ===== */
.letter-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 0 8px;
}
.letter-back {
  font-size: 2rem;
  background: none;
  border: none;
  cursor: pointer;
  width: 60px;
  height: 60px;
}
.letter-progress {
  font-family: var(--font-pixel);
  font-size: 0.7rem;
  color: var(--deepslate);
}
.letter-flag {
  width: 48px;
  height: 48px;
}

.letter-card {
  background: rgba(255,255,255,0.9);
  border: 4px solid var(--oak);
  border-radius: 4px;
  padding: 32px;
  text-align: center;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 8px 0 var(--oak), 0 4px 12px rgba(0,0,0,0.15);
  animation: popIn 0.3s ease-out;
}

@keyframes popIn {
  0% { transform: scale(0.8); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.letter-char {
  font-family: var(--font-andika);
  font-size: var(--letter-size-mobile);
  color: var(--deepslate);
  line-height: 1.2;
  margin-bottom: 8px;
}

.letter-image {
  width: 120px;
  height: 120px;
  object-fit: contain;
  margin: 8px auto;
  display: block;
}

.letter-word {
  font-family: var(--font-text);
  font-size: 1.1rem;
  color: var(--deepslate); /* contraste AA (le gris pierre était à 3,95:1) */
  margin-bottom: 8px;
}

.letter-replay {
  font-family: var(--font-pixel);
  font-size: 0.6rem;
  background: var(--water);
  color: white;
  border: 3px solid #2980B9;
  padding: 8px 16px;
  cursor: pointer;
  border-radius: 4px;
  box-shadow: 0 4px 0 #2980B9;
  transition: transform 0.1s;
}
.letter-replay:active {
  transform: translateY(2px);
  box-shadow: 0 2px 0 #2980B9;
}

.stars-bar {
  display: flex;
  gap: 8px;
  margin: 12px 0;
}
.star {
  font-size: 2rem;
  opacity: 0.2;
  transition: opacity 0.3s, transform 0.3s;
}
.star.filled {
  opacity: 1;
  animation: starPop 0.4s ease-out;
}
@keyframes starPop {
  0% { transform: scale(0); }
  50% { transform: scale(1.4); }
  100% { transform: scale(1); }
}

.btn-done {
  font-family: var(--font-pixel);
  font-size: 0.8rem;
  background: var(--grass);
  color: white;
  border: 4px solid #4A7A3A;
  padding: 16px 40px;
  cursor: pointer;
  border-radius: 4px;
  box-shadow: 0 5px 0 #4A7A3A;
  transition: transform 0.1s;
  margin-top: 8px;
}
.btn-done:active {
  transform: translateY(3px);
  box-shadow: 0 2px 0 #4A7A3A;
}

/* ===== CELEBRATION BANNER ===== */
.celebration {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--deepslate);
  color: var(--gold);
  font-family: var(--font-pixel);
  font-size: 0.8rem;
  padding: 24px 32px;
  border: 4px solid var(--gold);
  text-align: center;
  z-index: 100;
  animation: bannerDrop 0.5s ease-out;
  display: none;
}
.celebration.show { display: block; }

@keyframes bannerDrop {
  0% { transform: translate(-50%, -200%); }
  100% { transform: translate(-50%, -50%); }
}

.btn-minigame {
  font-family: var(--font-pixel);
  font-size: 0.7rem;
  background: var(--gold);
  color: var(--deepslate);
  border: 4px solid #D4A000;
  padding: 16px 32px;
  cursor: pointer;
  border-radius: 4px;
  box-shadow: 0 5px 0 #D4A000;
  animation: pulse 1s ease-in-out infinite;
  margin-top: 24px;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

/* ===== MINIGAME ===== */
.minigame-title {
  font-family: 'Press Start 2P', monospace;
  font-size: 0.7rem;
  color: var(--deepslate);
  text-align: center;
}
.minigame-desc {
  font-family: 'Nunito', sans-serif;
  font-size: 0.9rem;
  color: var(--deepslate);
  margin-top: 8px;
}

.minigame-area {
  width: min(90vw, 520px);
  height: clamp(220px, 38vh, 340px);
  background: linear-gradient(180deg, #8B5E3C 0%, #6D4C2E 100%);
  border: 4px solid #5A3E1E;
  border-radius: 4px;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  margin: 16px 0;
}

.minigame-info {
  display: flex;
  gap: 24px;
  justify-content: center;
  align-items: center;
  margin-bottom: 8px;
}
.minigame-hits, .minigame-block-type {
  font-family: 'Press Start 2P', monospace;
  font-size: 0.55rem;
  color: var(--deepslate);
}

.block {
  position: absolute;
  width: 88px;
  height: 88px;
  background: var(--stone);
  border: 4px solid #666;
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  user-select: none;
  cursor: pointer;
  box-shadow: 0 3px 0 rgba(0,0,0,0.3);
  transition: transform 0.2s ease-out, left 0.3s, top 0.3s;
}
.block:active {
  transform: scale(0.9) !important;
}
.block.broken {
  transform: scale(0) !important;
  opacity: 0;
  transition: transform 0.4s ease-out, opacity 0.4s;
}

.btn-minigame-continue {
  font-family: 'Press Start 2P', monospace;
  font-size: 0.6rem;
  background: var(--gold);
  color: var(--deepslate);
  border: 4px solid #D4A000;
  padding: 14px 28px;
  cursor: pointer;
  border-radius: 4px;
  box-shadow: 0 5px 0 #D4A000;
  transition: transform 0.1s;
  animation: pulse 1s ease-in-out infinite;
  margin: 8px 0;
}
.btn-minigame-continue:active {
  transform: translateY(3px);
  box-shadow: 0 2px 0 #D4A000;
}

.btn-back-menu {
  font-family: 'Press Start 2P', monospace;
  font-size: 0.5rem;
  background: var(--dirt);
  color: white;
  border: 3px solid #6D4C2E;
  padding: 10px 20px;
  cursor: pointer;
  border-radius: 4px;
  box-shadow: 0 4px 0 #6D4C2E;
  transition: transform 0.1s;
  margin-top: 4px;
}
.btn-back-menu:active {
  transform: translateY(2px);
  box-shadow: 0 2px 0 #6D4C2E;
}

/* ===== FOOTER ===== */
.footer {
  font-size: 0.6rem;
  color: var(--deepslate);
  text-align: center;
  padding: 8px;
  opacity: 0.7;
  position: fixed;
  bottom: 4px;
  left: 0;
  right: 0;
}
.footer a {
  color: var(--deepslate);
}

/* ===== RESPONSIVE ===== */
@media (min-width: 768px) {
  .letter-char { font-size: var(--letter-size-tablet); }
  .welcome-title { font-size: 1.6rem; }
  .letter-card { padding: 48px; }
}
@media (min-width: 1024px) {
  .letter-char { font-size: var(--letter-size-desktop); }
}

/* ===== SVG FLAGS (inline) ===== */
.flag-fr { color: #002395; }
.flag-gb { color: #CF142B; }
.flag-es { color: #C60B1E; }

/* ============================================================
   v1.3 — zone adulte, paire minuscule/capitale, haut-parleur géant,
   collection, verrous langues, quota mini-jeu
   ============================================================ */

button { touch-action: manipulation; } /* tue le double-tap-zoom sans tuer le pinch page */

/* --- zone adulte : petits boutons assumés (ce ne sont PAS des cibles enfant) --- */
.adult-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 0 8px;
}
.adult-btn {
  width: 48px;
  height: 48px;
  font-size: 1.1rem;
  font-family: var(--font-text);
  font-weight: 800;
  background: rgba(255,255,255,0.7);
  color: var(--deepslate);
  border: 2px solid var(--oak);
  border-radius: 4px;
  cursor: pointer;
}
.adult-btn:active { transform: scale(0.94); }
.adult-bar .letter-progress { margin-left: auto; }
.minigame-quota {
  margin-left: auto;
  font-family: var(--font-pixel);
  font-size: 0.6rem;
  color: var(--deepslate);
}

/* --- paire minuscule (modèle) + capitale --- */
.letter-pair {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 20px;
}
.letter-cap {
  font-family: var(--font-andika);
  font-size: 2.6rem;
  color: var(--deepslate);
  opacity: 0.55;
}
.review-badge {
  display: none;
  font-family: var(--font-text);
  font-size: 0.75rem;
  font-weight: 800;
  color: white;
  background: var(--water);
  border-radius: 10px;
  padding: 3px 10px;
}

/* --- haut-parleur géant (cible enfant ≥ 96px) --- */
.btn-speaker {
  width: 96px;
  height: 96px;
  font-size: 2.6rem;
  background: var(--water);
  color: white;
  border: 4px solid #2980B9;
  border-radius: 4px;
  cursor: pointer;
  box-shadow: 0 5px 0 #2980B9;
  transition: transform 0.1s;
}
.btn-speaker:active { transform: translateY(3px); box-shadow: 0 2px 0 #2980B9; }
.btn-speaker.speaking { animation: speakPulse 0.6s ease-in-out infinite; }
@keyframes speakPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.12); }
}

/* --- ✅ Recopié : vraie cible géante + zone morte au-dessus --- */
.btn-done {
  min-height: 80px;
  min-width: 240px;
  margin-top: 24px;
}

/* --- accueil : progression + reset adulte + verrous langue --- */
.welcome-progress {
  font-family: var(--font-text);
  font-weight: 800;
  color: var(--deepslate);
  min-height: 1.4em;
  margin-bottom: 12px;
}
.btn-reset {
  margin-top: 20px;
  font-family: var(--font-text);
  font-weight: 800;
  background: var(--lava);
  color: white;
  border: 3px solid #922B21;
  border-radius: 4px;
  padding: 10px 18px;
  cursor: pointer;
}
.lang-btn { position: relative; }
.lang-lock {
  display: none;
  position: absolute;
  right: -6px;
  bottom: -6px;
  font-size: 1.3rem;
}
.lang-btn.locked { opacity: 0.45; filter: grayscale(0.6); }
.lang-btn.locked .lang-lock { display: block; }
.lang-btn.shake { animation: shakeNo 0.4s; }
@keyframes shakeNo {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

/* --- célébration : les lettres de la série + sortie sans jeu --- */
.celebration-letters {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin: 18px 0 6px;
  flex-wrap: wrap;
}
.letter-chip {
  font-family: var(--font-andika);
  font-size: 1.6rem;
  color: var(--deepslate);
  background: white;
  border: 3px solid var(--oak);
  border-radius: 4px;
  min-width: 48px;
  padding: 4px 8px;
  display: inline-block;
}
.btn-skip-game {
  font-family: var(--font-pixel);
  font-size: 0.55rem;
  background: var(--grass);
  color: white;
  border: 3px solid #4A7A3A;
  padding: 12px 20px;
  cursor: pointer;
  border-radius: 4px;
  box-shadow: 0 4px 0 #4A7A3A;
  margin-top: 14px;
}

/* --- mini-jeu : bravo + collection (chips CSS, zéro emoji fragile) --- */
.minigame-bravo {
  font-family: var(--font-pixel);
  font-size: 0.8rem;
  color: var(--deepslate);
  background: var(--gold);
  border: 4px solid #D4A000;
  border-radius: 4px;
  padding: 14px 22px;
  animation: pulse 1s ease-in-out infinite;
}
.inventory {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 90%;
  min-height: 26px;
}
.inv-chip {
  width: 22px;
  height: 22px;
  border: 3px solid;
  border-radius: 3px;
  box-shadow: 0 2px 0 rgba(0,0,0,0.25);
}

/* --- footer : contraste relevé --- */
.footer { opacity: 0.9; font-size: 0.7rem; }