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

:root {
  --primary: #a55eea;
  --accent:  #fd79a8;
  --ink:     #2d3436;
  --muted:   #636e72;
  --guide:   #e0d7f5;
  --start:   #1dd1a1;
  --shadow:  0 8px 24px rgba(165, 94, 234, 0.18);
}

html, body { height: 100%; }
body {
  font-family: 'Fredoka', system-ui, -apple-system, Segoe UI, sans-serif;
  background:
    radial-gradient(circle at 20% 10%, #f3e7ff 0%, transparent 40%),
    radial-gradient(circle at 80% 30%, #e0f4ff 0%, transparent 40%),
    radial-gradient(circle at 50% 95%, #fff4cc 0%, transparent 40%),
    linear-gradient(135deg, #fdf2f8, #f0f9ff);
  background-attachment: fixed;
  min-height: 100vh; min-height: 100dvh;
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior-y: contain;
}

button {
  font-family: inherit;
  touch-action: manipulation;
  border: 0;
  cursor: pointer;
}

#app {
  max-width: 1100px; margin: 0 auto;
  padding-top:    max(20px, env(safe-area-inset-top));
  padding-bottom: max(32px, env(safe-area-inset-bottom));
  padding-left:   max(14px, env(safe-area-inset-left));
  padding-right:  max(14px, env(safe-area-inset-right));
}

.screen { display: none; animation: fadeIn 0.3s ease; }
.screen.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

/* ============== nav (как в других модулях) ============== */
.kids-nav {
  display: flex; gap: 8px; margin-bottom: 20px;
  overflow-x: auto; padding: 4px 2px;
  -webkit-overflow-scrolling: touch; scrollbar-width: none;
}
.kids-nav::-webkit-scrollbar { display: none; }
.kids-nav__chip {
  flex-shrink: 0;
  padding: 8px 16px;
  background: white;
  border-radius: 22px;
  text-decoration: none;
  color: var(--ink);
  font-size: 0.95rem; font-weight: 500;
  box-shadow: var(--shadow);
  white-space: nowrap;
  transition: transform 0.2s;
}
.kids-nav__chip:active { transform: scale(0.95); }
.kids-nav__chip--active {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  pointer-events: none;
}

/* ============== Главная ============== */
.home-header { text-align: center; margin-bottom: 24px; }
.home-header h1 {
  font-size: clamp(2rem, 5vw, 2.8rem); font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
}
.home-header .subtitle { color: var(--muted); font-size: clamp(0.95rem, 2.4vw, 1.1rem); }

.tabs {
  display: flex; gap: 8px;
  justify-content: center;
  margin-bottom: 20px;
}
.tab {
  padding: 10px 24px;
  background: white;
  border-radius: 22px;
  font-size: 1rem; font-weight: 500;
  color: var(--muted);
  box-shadow: var(--shadow);
  transition: transform 0.2s;
}
.tab:active { transform: scale(0.96); }
.tab--active {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 12px;
}
.char-tile {
  aspect-ratio: 1;
  background: white;
  border-radius: 20px;
  display: flex; align-items: center; justify-content: center;
  font-size: clamp(2.6rem, 7vw, 3.4rem);
  font-weight: 600;
  color: var(--ink);
  box-shadow: var(--shadow);
  transition: transform 0.18s, box-shadow 0.18s;
  position: relative;
  overflow: hidden;
}
.char-tile:active { transform: scale(0.96); }
.char-tile::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 6px;
  background: var(--primary);
}
.char-tile--digit::before  { background: #48dbfb; }
.char-tile--letter::before { background: var(--primary); }

.char-tile .stars {
  position: absolute; top: 12px; right: 12px;
  font-size: 0.9rem; line-height: 1;
}

.footer {
  margin-top: 32px;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

/* ============== Экран обводки ============== */
.trace-top {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  gap: 8px;
  align-items: center;
  margin-bottom: 14px;
}
.back-btn {
  background: white;
  border-radius: 14px;
  padding: 10px 16px;
  font-weight: 600; color: var(--primary);
  box-shadow: var(--shadow);
  font-size: 0.95rem;
}
.back-btn--ghost { color: var(--muted); padding: 10px 14px; }
.back-btn:active { transform: scale(0.96); }
.trace-title {
  text-align: center;
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  font-weight: 600;
  color: var(--ink);
}

.canvas-wrap {
  position: relative;
  width: 100%;
  /* Высота: квадратный canvas с небольшим запасом сверху для Ё.
     viewBox 200×280 → соотношение 200:280 = 5:7. Берём ширину min(700px, 90vmin). */
  max-width: 700px;
  margin: 0 auto;
  aspect-ratio: 200 / 280;
  background: white;
  border-radius: 24px;
  box-shadow: var(--shadow);
  overflow: hidden;
  /* Отрубаем скролл/жесты браузера во время рисования */
  touch-action: none;
  -webkit-user-select: none; user-select: none;
}

.guide, .ink {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  display: block;
}
.guide {
  pointer-events: none;
}
.guide .stroke-guide {
  fill: none;
  stroke: var(--guide);
  stroke-width: 22;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.guide .stroke-guide.completed {
  stroke: #d4f5e6;
}
.guide .start-dot {
  fill: var(--start);
  filter: drop-shadow(0 2px 4px rgba(29, 209, 161, 0.45));
}
.guide .start-dot--completed {
  fill: #b2bec3;
  filter: none;
  opacity: 0.5;
}
.guide .start-num {
  fill: white;
  font-size: 14px;
  font-weight: 700;
  font-family: 'Fredoka', sans-serif;
  text-anchor: middle;
  dominant-baseline: central;
  pointer-events: none;
  user-select: none;
}

.ink {
  /* Canvas сам обрабатывает события */
  background: transparent;
  cursor: crosshair;
}

/* ============== Оверлей результата ============== */
/* КРИТИЧНО: [hidden] из user-agent имеет ту же специфичность что .result-overlay,
   но author CSS ниже по каскаду — он перебивает и оверлей продолжает ловить клики.
   Явно скрываем через атрибут с большей специфичностью. */
.result-overlay[hidden] { display: none; }

.result-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.94);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  border-radius: 24px;
  padding: 24px;
  animation: pop 0.4s ease;
}
@keyframes pop {
  from { opacity: 0; transform: scale(0.9); }
  to   { opacity: 1; transform: scale(1); }
}
.result-overlay .stars-row {
  font-size: clamp(2.5rem, 8vw, 4rem);
  letter-spacing: 6px;
  margin-bottom: 12px;
}
.result-overlay h3 {
  font-size: clamp(1.4rem, 4vw, 2rem);
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.result-overlay p {
  color: var(--muted);
  margin-bottom: 18px;
  max-width: 420px;
}
.result-overlay .result-buttons {
  display: flex; gap: 10px; flex-wrap: wrap; justify-content: center;
}

/* ============== Контролы ============== */
.trace-controls {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 16px;
  flex-wrap: wrap;
}
.ctrl-btn {
  padding: 14px 26px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  font-size: 1.05rem;
  font-weight: 600;
  box-shadow: var(--shadow);
  transition: transform 0.15s;
}
.ctrl-btn:active { transform: scale(0.97); }
.ctrl-btn--ghost {
  background: white;
  color: var(--muted);
}

.pen-hint {
  margin-top: 14px;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

/* iPad: чуть крупнее всё */
@media (min-width: 820px) {
  .canvas-wrap { max-width: 600px; }
  .home-header h1 { font-size: 3.2rem; }
}