/* ─── Makrota Mini App — стили ───────────────────────────────── */
/* Использует Telegram.WebApp themeParams через CSS переменные  */
/* Базовый сброс и тема ──────────────────────────────────────── */
:root {
  --bg-color: var(--tg-theme-bg-color, #fff);
  --text-color: var(--tg-theme-text-color, #222);
  --hint-color: var(--tg-theme-hint-color, #888);
  --link-color: var(--tg-theme-link-color, #2481cc);
  --button-color: var(--tg-theme-button-color, #2481cc);
  --button-text-color: var(--tg-theme-button-text-color, #fff);
  --secondary-bg-color: var(--tg-theme-secondary-bg-color, #f0f0f0);
  --section-bg: var(--tg-theme-section-bg-color, #f8f8f8);
  --card-bg: var(--tg-theme-card-bg-color, #fff);
  --accent: #e8553a;
  --success: #4caf50;
  --gold: #ffc107;
  --border-radius: 12px;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  --transition: 0.2s ease;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  max-width: 480px;
  margin: 0 auto;
  padding: 0 16px 80px;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ─── Шапка ──────────────────────────────────────────────────── */

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0 12px;
  border-bottom: 1px solid var(--secondary-bg-color);
  margin-bottom: 16px;
}
.app-header h1 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.3px;
}
.app-header .back-btn {
  background: none;
  border: none;
  font-size: 24px;
  color: var(--button-color);
  cursor: pointer;
  padding: 4px;
  display: none;
}

/* ─── Кнопки ─────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px 20px;
  border: none;
  border-radius: var(--border-radius);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--button-color);
  color: var(--button-text-color);
}
.btn-secondary {
  background: var(--secondary-bg-color);
  color: var(--text-color);
}
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--accent); color: #fff; }
.btn-outline {
  background: transparent;
  color: var(--button-color);
  border: 2px solid var(--button-color);
}
.btn-sm { padding: 10px 16px; font-size: 14px; }
.btn-icon { width: auto; padding: 10px; border-radius: 50%; }

/* ─── Главное меню ──────────────────────────────────────────── */

.main-menu { display: flex; flex-direction: column; gap: 12px; padding-top: 24px; }
.main-menu .btn { font-size: 18px; padding: 18px; border-radius: 16px; }
.menu-icon { font-size: 22px; }

/* ─── Сетка плиток ───────────────────────────────────────────── */

.tile-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 16px 0;
}
.tile {
  background: var(--secondary-bg-color);
  border-radius: var(--border-radius);
  padding: 20px 12px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}
.tile:active { transform: scale(0.96); }
.tile-icon { font-size: 32px; display: block; margin-bottom: 8px; }
.tile-title { font-size: 14px; font-weight: 600; }
.tile-sub { font-size: 12px; color: var(--hint-color); margin-top: 4px; }
.tile.locked { opacity: 0.5; cursor: default; }
.tile.locked .tile-icon { filter: grayscale(1); }
.tile.disabled { opacity: 0.4; cursor: default; }

/* ─── Таблица годзюон ───────────────────────────────────────── */

.kana-table-wrap { overflow-x: auto; margin: 12px 0; }
.kana-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 4px;
  font-size: 14px;
}
.kana-table th {
  font-weight: 600;
  font-size: 12px;
  color: var(--hint-color);
}
.kana-table td {
  text-align: center;
  padding: 8px 4px;
  border-radius: 8px;
  background: var(--card-bg);
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow);
  position: relative;
}
.kana-table td:active { transform: scale(0.92); }
.kana-table td.empty { background: transparent; box-shadow: none; cursor: default; }
.kana-table td.learned { background: var(--button-color); color: var(--button-text-color); }
.kana-table td.learning { background: var(--secondary-bg-color); }
.kana-table td .kana-char { font-size: 22px; display: block; font-family: 'Noto Sans JP', sans-serif; }
.kana-table td .kana-romaji { font-size: 11px; opacity: 0.7; }

/* ─── Карточка знака (всплывающая) ──────────────────────────── */

.kana-card-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
  animation: fadeIn 0.2s;
}
.kana-card {
  background: var(--card-bg);
  border-radius: 20px;
  padding: 32px 24px;
  max-width: 320px;
  width: 90%;
  text-align: center;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
  animation: slideUp 0.3s;
}
.kana-card .big-kana { font-size: 64px; line-height: 1.2; font-family: 'Noto Sans JP', sans-serif; }
.kana-card .big-romaji { font-size: 28px; font-weight: 300; margin: 4px 0 8px; }
.kana-card .hint { font-size: 15px; color: var(--hint-color); margin: 8px 0 16px; line-height: 1.4; }
.kana-card .status-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 12px;
}
.kana-card .status-badge.learned { background: var(--success); color: #fff; }
.kana-card .status-badge.new { background: var(--secondary-bg-color); color: var(--hint-color); }

/* ─── Башня уровней ─────────────────────────────────────────── */

.tower-wrap {
  display: flex;
  flex-direction: column-reverse;
  align-items: center;
  gap: 8px;
  padding: 16px 0;
}
.tower-cell {
  width: 100%;
  max-width: 340px;
  padding: 14px 16px;
  border-radius: 12px;
  background: var(--secondary-bg-color);
  border: 2px solid transparent;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: var(--transition);
}
.tower-cell:active { transform: scale(0.97); }
.tower-cell.passed { border-color: var(--success); background: rgba(76,175,80,0.08); }
.tower-cell.available { border-color: var(--button-color); background: rgba(36,129,204,0.08); }
.tower-cell.locked { opacity: 0.45; cursor: default; }
.tower-cell .tower-level { font-weight: 700; font-size: 15px; }
.tower-cell .tower-stars { color: var(--gold); font-size: 14px; }
.tower-cell .tower-status { font-size: 12px; color: var(--hint-color); }

/* ─── Экран уровня ──────────────────────────────────────────── */

.level-header {
  text-align: center;
  padding: 16px 0;
}
.level-header h2 { font-size: 20px; margin-bottom: 4px; }
.level-header .sub { color: var(--hint-color); font-size: 14px; }

.progress-bar {
  height: 6px;
  background: var(--secondary-bg-color);
  border-radius: 3px;
  margin: 12px 0;
  overflow: hidden;
}
.progress-bar .fill {
  height: 100%;
  background: var(--button-color);
  border-radius: 3px;
  transition: width 0.4s ease;
}

.question-card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 24px 20px;
  margin: 16px 0;
  box-shadow: var(--shadow);
}
.question-card .q-text {
  font-size: 18px;
  margin-bottom: 16px;
  line-height: 1.5;
}
.question-card .q-kana {
  font-size: 42px;
  text-align: center;
  padding: 16px 0;
  font-family: 'Noto Sans JP', sans-serif;
}

.option-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.option-btn {
  padding: 14px 8px;
  border: 2px solid var(--secondary-bg-color);
  border-radius: 10px;
  background: var(--card-bg);
  font-size: 16px;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  -webkit-tap-highlight-color: transparent;
}
.option-btn:active { transform: scale(0.95); }
.option-btn.selected.correct {
  border-color: var(--success);
  background: rgba(76,175,80,0.1);
}
.option-btn.selected.wrong {
  border-color: var(--accent);
  background: rgba(232,85,58,0.1);
}
.option-btn.reveal-correct {
  border-color: var(--success);
  background: rgba(76,175,80,0.06);
}

.level-result {
  text-align: center;
  padding: 32px 16px;
}
.level-result .result-icon { font-size: 64px; margin-bottom: 12px; }
.level-result h2 { font-size: 24px; margin-bottom: 8px; }
.level-result .result-score { font-size: 28px; font-weight: 700; color: var(--button-color); margin: 8px 0; }
.level-result .result-detail { color: var(--hint-color); margin-bottom: 20px; line-height: 1.5; }

/* ─── Статистика ────────────────────────────────────────────── */

.stat-card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
}
.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--secondary-bg-color);
}
.stat-row:last-child { border-bottom: none; }
.stat-label { font-size: 14px; color: var(--hint-color); }
.stat-value { font-size: 16px; font-weight: 600; }

.ach-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 12px 0;
}
.ach-item {
  text-align: center;
  padding: 12px 4px;
  border-radius: 10px;
  background: var(--secondary-bg-color);
  font-size: 12px;
  cursor: default;
}
.ach-item .ach-icon { font-size: 28px; display: block; margin-bottom: 4px; }
.ach-item .ach-label { font-size: 10px; color: var(--hint-color); }
.ach-item.earned { background: rgba(255,193,7,0.12); border: 1px solid var(--gold); }
.ach-item.locked { opacity: 0.4; }

/* ─── Настройки ─────────────────────────────────────────────── */

.settings-section { margin: 16px 0; }
.settings-section h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--hint-color);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.settings-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--secondary-bg-color);
}
.settings-item:last-child { border-bottom: none; }

select, input[type="number"] {
  background: var(--secondary-bg-color);
  color: var(--text-color);
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 15px;
  outline: none;
}
select:focus, input:focus { border-color: var(--button-color); }

/* ─── Анимации ──────────────────────────────────────────────── */

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* ─── Утилиты ───────────────────────────────────────────────── */

.hidden { display: none !important; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mt-16 { margin-top: 16px; }
.text-center { text-align: center; }
.text-hint { color: var(--hint-color); font-size: 14px; }
.gap-8 { display: flex; flex-direction: column; gap: 8px; }
.flex-row { display: flex; gap: 8px; }
.flex-row .btn { flex: 1; }

/* ─── Нотификация ──────────────────────────────────────────── */
.notification {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--card-bg);
  color: var(--text-color);
  padding: 12px 24px;
  border-radius: var(--border-radius);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  z-index: 200;
  font-size: 14px;
  font-weight: 600;
  animation: slideUp 0.3s;
}

/* ─── Слушаем/аудио кнопка ────────────────────────────────── */
.listen-btn {
  background: var(--secondary-bg-color);
  border: none;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  font-size: 22px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.listen-btn:active { transform: scale(0.9); }

/* ─── Экзамены ───────────────────────────────────────────────── */

.exam-timer {
  font-family: monospace;
  font-size: 18px;
  font-weight: 700;
  color: var(--button-color);
}
.level-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.level-header h2 {
  font-size: 18px;
  font-weight: 600;
}
.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}
/* Exam result */
.exam-result .grade-label {
  font-size: 18px;
  font-weight: 700;
  text-align: center;
  margin: 12px 0;
  padding: 8px;
  border-radius: var(--border-radius);
}
.grade-excellent { color: var(--success); background: rgba(76,175,80,0.1); }
.grade-good { color: var(--button-color); background: rgba(36,129,204,0.1); }
.grade-fair { color: var(--gold); background: rgba(255,193,7,0.1); }
.grade-poor { color: var(--accent); background: rgba(232,85,58,0.1); }
.result-icon { font-size: 48px; text-align: center; margin-bottom: 8px; }
.result-score { font-size: 32px; font-weight: 700; text-align: center; }
.result-pct { font-size: 20px; font-weight: 600; text-align: center; color: var(--hint-color); }
.result-time { text-align: center; color: var(--hint-color); margin: 4px 0; }

/* Exam review */
.exam-review-item {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 12px;
  margin-bottom: 10px;
  box-shadow: var(--shadow);
}
.review-question {
  font-weight: 600;
  font-size: 15px;
  margin-bottom: 6px;
}
.review-line { margin: 3px 0; }
.review-label { font-size: 13px; color: var(--hint-color); }
.review-correct-text { color: var(--success); font-weight: 600; }
.review-wrong-text { color: var(--accent); font-weight: 600; text-decoration: line-through; }
.listen-btn-sm {
  background: none;
  border: 1px solid var(--secondary-bg-color);
  border-radius: 6px;
  padding: 4px 8px;
  cursor: pointer;
  font-size: 14px;
  margin-top: 4px;
}
.listen-btn-sm:active { opacity: 0.6; }

/* Mini-graph for exam history (pure CSS) */
.mini-graph {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 60px;
  padding: 8px 0;
}
.mini-bar {
  flex: 1;
  border-radius: 4px 4px 0 0;
  min-height: 4px;
  transition: var(--transition);
  background: var(--button-color);
  opacity: 0.6;
}
.mini-bar:hover { opacity: 1; }
.mini-bar.good { background: var(--success); }
.mini-bar.fair { background: var(--gold); }
.mini-bar.poor { background: var(--accent); }