/* ===========================================================================
 * IrisKids — Avatar Magique (kids-avatar)
 * Style mobile-first, palette verte émeraude (--ik-accent: #10b981) cohérente
 * avec la carte "Outils créatifs > Avatar IA" de la home.
 *
 * 4 écrans : welcome (form) → loading (sparkles) → result (image) ou error.
 * Une seule .screen porte .screen--active à la fois (gérée par avatar.js).
 * ========================================================================== */

:root {
  --av-accent: #10b981;
  --av-accent-dark: #047857;
  --av-accent-light: #6ee7b7;
  --av-accent-pale: #d1fae5;
  --av-ink: #0f172a;
  --av-ink-soft: #065f46;
  --av-bg: #fffafc;
  --av-card-bg: #ffffff;
  --av-shadow: 0 8px 24px rgba(4, 120, 87, 0.18);
  --av-radius: 16px;
}

html, body {
  height: 100%;
  margin: 0;
  font-family: var(--ik-font, 'Baloo 2', system-ui, -apple-system, sans-serif);
  color: var(--av-ink);
  background:
    radial-gradient(circle at 15% -10%, #d1fae5 0%, transparent 45%),
    radial-gradient(circle at 100% 100%, #fef3c7 0%, transparent 50%),
    var(--av-bg);
  overscroll-behavior: none;
}

body {
  padding-top: var(--ik-header-h, 52px);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.hidden { display: none !important; }

/* ─── Layout des écrans ─────────────────────────────────────────────────── */
.screen {
  display: none;
  flex: 1;
  flex-direction: column;
  padding: 1.25rem 1rem;
  gap: 1rem;
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
}
.screen--active { display: flex; }

/* ─── Hero (welcome + result + error) ───────────────────────────────────── */
.hero {
  text-align: center;
  padding: 1rem 0 0.25rem;
}
.hero--compact { padding: 0.5rem 0; }

.hero-emoji {
  font-size: 4rem;
  line-height: 1;
  margin-bottom: 0.4rem;
}

.hero-title {
  margin: 0 0 0.4rem;
  font-size: 2rem;
  font-weight: 800;
  color: var(--av-ink);
  letter-spacing: -0.02em;
}

.hero-sub {
  margin: 0;
  font-size: 1rem;
  color: var(--av-ink-soft);
  font-weight: 600;
}

/* ─── Boutons géants ────────────────────────────────────────────────────── */
.btn-giant {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1.05rem 1.5rem;
  border: 0;
  border-radius: 999px;
  font-family: inherit;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: transform .08s ease, box-shadow .15s ease, opacity .15s ease;
}
.btn-giant:active:not(:disabled) { transform: scale(0.97); }
.btn-giant:disabled { opacity: 0.45; cursor: not-allowed; }

.btn-giant--primary {
  background: linear-gradient(135deg, var(--av-accent), #06b6d4);
  color: #fff;
  box-shadow: var(--av-shadow);
}

.btn-giant--secondary {
  background: #fff;
  color: var(--av-ink);
  border: 2px solid var(--av-accent-light);
}

.btn-giant-icon { font-size: 1.3rem; line-height: 1; }

.hint-text {
  text-align: center;
  margin: 0;
  font-size: 0.85rem;
  color: var(--av-ink-soft);
  font-weight: 600;
}

/* ─── Écran 1 — Formulaire ──────────────────────────────────────────────── */
.form-card {
  background: var(--av-card-bg);
  border-radius: var(--av-radius);
  padding: 1.25rem;
  box-shadow: 0 4px 16px rgba(4, 120, 87, 0.08);
}

.form-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--av-ink);
}
.form-label--section {
  margin-top: 1.25rem;
}
.form-label-emoji { font-size: 1.2rem; line-height: 1; }

.form-input {
  display: block;
  width: 100%;
  box-sizing: border-box;
  padding: 0.85rem 1rem;
  border: 2px solid var(--av-accent-pale);
  border-radius: 12px;
  font-family: inherit;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--av-ink);
  background: #fff;
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.form-input:focus {
  border-color: var(--av-accent);
  box-shadow: 0 0 0 3px var(--av-accent-pale);
}
.form-input::placeholder {
  color: #9ca3af;
  font-weight: 500;
}

.form-error {
  margin: 0.4rem 0 0;
  padding: 0;
  font-size: 0.85rem;
  font-weight: 600;
  color: #991b1b;
}

/* Palette de thèmes */
.themes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  min-height: 80px;
}

.themes-loading {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--av-ink-soft);
  font-size: 0.95rem;
  padding: 1.5rem 0;
}

.theme-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding: 0.85rem 0.5rem;
  background: #fff;
  border: 2px solid var(--av-accent-pale);
  border-radius: 12px;
  cursor: pointer;
  font-family: inherit;
  transition: transform .08s ease, border-color .15s ease, background .15s ease;
}
.theme-btn:active { transform: scale(0.96); }
.theme-btn--active {
  border-color: var(--av-accent);
  background: var(--av-accent-pale);
  box-shadow: 0 0 0 3px var(--av-accent-pale);
}
.theme-btn-emoji { font-size: 1.8rem; line-height: 1; }
.theme-btn-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--av-ink);
}

/* ─── Écran 2 — Loading ─────────────────────────────────────────────────── */
.loading-stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
}

.loading-orb {
  position: relative;
  width: 180px;
  height: 180px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--av-accent-pale), transparent 70%);
  animation: orb-pulse 2.4s ease-in-out infinite;
}

@keyframes orb-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}

.loading-orb-emoji {
  font-size: 4.5rem;
  line-height: 1;
  animation: orb-wiggle 3s ease-in-out infinite;
}

@keyframes orb-wiggle {
  0%, 100% { transform: rotate(-6deg); }
  50%      { transform: rotate(6deg); }
}

.sparkle {
  position: absolute;
  font-size: 1.6rem;
  animation: sparkle-orbit 4s linear infinite;
  pointer-events: none;
}

.sparkle--1 { animation-delay: 0s;   top:  8%; left: 50%; }
.sparkle--2 { animation-delay: 0.6s; top: 30%; left: 88%; }
.sparkle--3 { animation-delay: 1.2s; top: 70%; left: 86%; }
.sparkle--4 { animation-delay: 1.8s; top: 92%; left: 50%; }
.sparkle--5 { animation-delay: 2.4s; top: 70%; left: 14%; }
.sparkle--6 { animation-delay: 3.0s; top: 30%; left: 12%; }

@keyframes sparkle-orbit {
  0%   { transform: translate(-50%, -50%) scale(0.4); opacity: 0; }
  20%  { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
  80%  { opacity: 1; transform: translate(-50%, -50%) scale(1); }
  100% { transform: translate(-50%, -50%) scale(0.4); opacity: 0; }
}

.loading-title {
  text-align: center;
  margin: 0;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--av-ink);
}

.loading-sub {
  text-align: center;
  margin: 0;
  font-size: 1rem;
  color: var(--av-ink-soft);
  font-weight: 600;
}

/* ─── Écran 3 — Result ──────────────────────────────────────────────────── */
.result-img-wrap {
  display: flex;
  justify-content: center;
  padding: 0.5rem 0;
}

.result-img {
  max-width: min(360px, 86vw);
  width: 100%;
  height: auto;
  border-radius: var(--av-radius);
  box-shadow: var(--av-shadow);
  background: var(--av-accent-pale);
}

.result-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Sur tablet+, on garde Télécharger en pleine largeur (action primaire)
   et on met "En refaire un" + "Changer d'univers" côte à côte en dessous.
   3 boutons côte à côte sur 720px serait trop étriqué pour les labels. */
@media (min-width: 540px) {
  .result-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      "download download"
      "restart change";
    gap: 0.75rem;
  }
  #btn-download    { grid-area: download; }
  #btn-restart     { grid-area: restart; }
  #btn-change-theme { grid-area: change; }
}

/* ─── Tablet/desktop ────────────────────────────────────────────────────── */
@media (min-width: 720px) {
  .hero-title { font-size: 2.5rem; }
  .hero-emoji { font-size: 5rem; }
  .themes-grid { grid-template-columns: repeat(3, 1fr); }
}