/* ===== Variables de thème: palette claire (par défaut) ===== */
:root,
[data-theme="light"] {
  --bg:        #F8F5F0;
  --text:      #1E2328;
  --card:      #E9DFD0;
  --accent:    #2B87D1;
  --on-accent: #FFFFFF;
  --muted:     rgba(30, 35, 40, .55);
  --border:    rgba(30, 35, 40, .14);
  --track:     rgba(30, 35, 40, .12);
}

/* ===== Palette sombre ===== */
[data-theme="dark"] {
  --bg:        #071013;
  --text:      #FFFFFF;
  --card:      #0E1B22;
  --accent:    #55F1F1;
  --on-accent: #071013;
  --muted:     #6B7380;
  --border:    rgba(107, 115, 128, .35);
  --track:     rgba(107, 115, 128, .30);
}

/* ===== Base ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  transition: background .3s, color .3s;
}

#root { width: 100%; display: flex; justify-content: center; }

/* ===== Écran: le cadre central de chaque vue ===== */
.screen {
  position: relative;
  width: 100%;
  max-width: 560px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 40px 34px;
  box-shadow: 0 20px 55px rgba(0, 0, 0, .14);
  animation: fade .35s ease;
}
@keyframes fade { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ===== Logo ===== */
.logo { font-size: 2.6rem; font-weight: 800; letter-spacing: -1px; text-align: center; }
.logo-sm { font-size: 1.7rem; }

/* ===== Menu principal ===== */
.menu { text-align: center; padding: 64px 34px; }
.menu .logo { margin-bottom: 36px; }
.btn-play { font-size: 1.05rem; padding: 14px 48px; }

.theme-toggle {
  position: absolute;
  top: 18px; right: 18px;
  width: 42px; height: 42px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  font-size: 1.1rem;
  cursor: pointer;
  transition: background .2s, color .2s;
}
.theme-toggle:hover { background: var(--accent); color: var(--on-accent); }

/* ===== Configuration ===== */
.subtitle { text-align: center; color: var(--muted); margin: 6px 0 26px; }
.group-label {
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--muted);
  margin: 0 0 12px;
}
.options { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 26px; }

.option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 16px 8px;
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: 14px;
  color: var(--text);
  cursor: pointer;
  font-family: inherit;
  transition: border-color .2s, transform .12s;
}
.option:hover { transform: translateY(-2px); }
.option.selected { border-color: var(--accent); }
.opt-title { font-weight: 600; font-size: .95rem; }
.opt-big   { font-weight: 700; font-size: 1.25rem; }
.opt-sub   { font-size: .72rem; color: var(--muted); text-align: center; }
.opt-stars { color: var(--accent); font-size: .8rem; }

/* ===== Boutons ===== */
.btn-primary {
  display: block;
  width: 100%;
  background: var(--accent);
  color: var(--on-accent);
  border: none;
  border-radius: 12px;
  padding: 13px 26px;
  font-family: inherit;
  font-weight: 600;
  font-size: .98rem;
  cursor: pointer;
  transition: filter .2s, transform .12s;
}
.btn-primary:hover { filter: brightness(1.05); transform: translateY(-1px); }
.btn-primary:disabled { opacity: .6; cursor: default; transform: none; }
.btn-ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 12px;
  padding: 13px 26px;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
}

/* ===== Jeu: bandeau d'état ===== */
.hud {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  font-size: .85rem;
}
.hud-tag strong { color: var(--accent); }
.hud-hearts { color: var(--accent); font-size: 1.05rem; letter-spacing: 3px; }

/* ===== Jeu: séquence et minuteur ===== */
.game-title { text-align: center; font-size: 1.45rem; font-weight: 700; margin-bottom: 22px; }
.sequence {
  display: flex;
  justify-content: center;
  gap: clamp(10px, 4vw, 26px);
  margin-bottom: 18px;
  min-height: 64px;
}
.seq-char { font-size: clamp(2.2rem, 9vw, 3.4rem); font-weight: 800; letter-spacing: 1px; }

.timer-bar { height: 6px; background: var(--track); border-radius: 99px; overflow: hidden; }
.timer-fill { height: 100%; width: 100%; background: var(--accent); animation: shrink 5s linear forwards; }
@keyframes shrink { from { width: 100%; } to { width: 0; } }

/* ===== Jeu: réponse ===== */
.answer-block { min-height: 100px; }
.answer-label { text-align: center; color: var(--muted); margin: 0 0 14px; font-size: .9rem; }
.answer { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-bottom: 24px; }
.answer-box {
  width: 44px; height: 56px;
  background: transparent;
  border: none;
  border-bottom: 3px solid var(--border);
  color: var(--text);
  font-family: inherit;
  font-size: 1.6rem;
  font-weight: 700;
  text-align: center;
  text-transform: uppercase;
}
.answer-box:focus { outline: none; border-bottom-color: var(--accent); }
.answer-box.is-correct { border-bottom-color: var(--accent); }
.answer-box.is-wrong   { border-bottom-color: #E05252; }

/* ===== Résultat ===== */
.result { text-align: center; }
.result-title { font-size: 1.7rem; font-weight: 800; margin-bottom: 24px; }
.result-row {
  display: flex;
  justify-content: space-between;
  padding: 12px 4px;
  border-bottom: 1px solid var(--border);
  font-size: .9rem;
}
.result-row span { color: var(--muted); text-transform: uppercase; letter-spacing: 1px; font-size: .78rem; }
.result-row strong { color: var(--accent); font-size: 1rem; }
.result-msg { margin: 20px 0 26px; font-weight: 600; }
.result-actions { display: flex; gap: 12px; }
.result-actions .btn-primary, .result-actions .btn-ghost { width: 100%; }

/* ===== Lien de retour ===== */
.back-link {
  position: fixed;
  bottom: 18px; left: 22px;
  color: var(--muted);
  text-decoration: none;
  font-size: .85rem;
}
.back-link:hover { color: var(--accent); }

/* ===== Petits écrans ===== */
@media (max-width: 460px) {
  .options { grid-template-columns: 1fr; }
  .screen { padding: 30px 22px; }
}