:root {
  --bg-main: #F8FAFC;
  --bg-card: #FFFFFF;
  --text-main: #1E293B;
  --text-muted: #64748B;
  --primary: #2563EB;
  --primary-hover: #1D4ED8;
  --border: #E2E8F0;
  --correct: #10B981;
  --wrong: #EF4444;
  --font-main: 'Manrope', sans-serif;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; background: var(--bg-main); color: var(--text-main);
  font-family: var(--font-main); font-size: 16px; overflow: hidden;
  -webkit-font-smoothing: antialiased;
}
button, input, textarea, select { font-family: var(--font-main); }
.page { height: 100%; }

.leaflet-container .leaflet-control-attribution {
  font-family: var(--font-main); font-size: 11px; color: var(--text-muted);
  background: rgba(255, 255, 255, 0.9); border-radius: 8px; padding: 4px 8px;
  margin: 0 0 10px 10px;
}
.leaflet-container .leaflet-control-attribution a { color: var(--primary); }
/* Клик по району фокусирует SVG-путь, и браузер рисует вокруг него синюю рамку */
.leaflet-interactive:focus { outline: none; }

/* ШАПКА */
.header {
  position: fixed; top: 20px; left: 20px; z-index: 1200; max-width: 480px;
  padding: 24px 28px; border-radius: 24px; background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px); box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  display: flex; align-items: flex-start; gap: 16px;
}
.header-text { flex: 1; min-width: 0; }
.header h1 { margin: 0 0 8px; font-size: clamp(22px, 2vw, 28px); line-height: 1.2; font-weight: 800; letter-spacing: -0.02em; }
.header h1 span { color: var(--primary); }
.header p { margin: 0; font-size: 14px; line-height: 1.5; color: var(--text-muted); }
.rules-open-btn {
  flex-shrink: 0; width: 40px; height: 40px; border: none; background: var(--bg-main);
  color: var(--primary); font-size: 20px; font-weight: 700; border-radius: 50%;
  cursor: pointer; transition: 0.2s; display: grid; place-items: center;
}
.rules-open-btn:hover { background: var(--primary); color: #fff; transform: scale(1.05); }

/* КАРТА */
.map-card { position: fixed; inset: 0; z-index: 0; overflow: hidden; }
#map { height: 100%; width: 100%; background: #F1F5F9; }
.map-overlay {
  position: absolute; z-index: 500; left: 20px; bottom: 100px; padding: 16px 20px;
  border-radius: 16px; background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1); backdrop-filter: blur(8px); font-size: 14px;
}
.map-overlay strong { display: block; margin-bottom: 6px; font-weight: 600; }

/* ПАНЕЛЬ СЛОВ */
.sidebar {
  position: fixed; top: 20px; right: 20px; bottom: 20px; width: min(420px, calc(100vw - 40px));
  z-index: 1100; background: var(--bg-card); border-radius: 24px; padding: 24px;
  box-shadow: 0 10px 50px rgba(0, 0, 0, 0.12); overflow-y: auto; overscroll-behavior: contain;
  transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.3, 1), opacity 0.3s;
}
.sidebar.collapsed { transform: translateX(calc(100% + 40px)); opacity: 0; pointer-events: none; }
.sidebar-top { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; border-bottom: 1px solid var(--border); padding-bottom: 16px; }
.mode-switch { display: flex; gap: 8px; flex: 1; }
.mode-btn {
  flex: 1; padding: 10px 4px; background: transparent; border: none; border-radius: 8px;
  color: var(--text-muted); font-size: 13px; font-weight: 600; cursor: pointer; transition: 0.2s;
}
.mode-btn:hover { background: var(--bg-main); color: var(--text-main); }
.mode-btn.active { background: var(--primary); color: #fff; }
.sidebar-close-btn {
  flex-shrink: 0; width: 36px; height: 36px; border-radius: 10px; background: var(--bg-main); border: none;
  color: var(--text-muted); cursor: pointer; font-size: 16px; display: grid; place-items: center; transition: 0.2s;
}
.sidebar-close-btn:hover { background: #FEE2E2; color: var(--wrong); }
.sidebar-reopen-btn {
  position: fixed; top: 20px; right: 20px; z-index: 1150; padding: 14px 24px;
  background: var(--primary); color: #fff; border: none; border-radius: 14px;
  font-size: 15px; font-weight: 600; cursor: pointer; box-shadow: 0 8px 24px rgba(37, 99, 235, 0.3);
  display: flex; align-items: center; gap: 8px; opacity: 0; pointer-events: none; transform: translateY(-10px); transition: 0.3s;
}
.sidebar-reopen-btn.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.sidebar-reopen-btn:hover { background: var(--primary-hover); transform: translateY(-2px); }

.empty-state { min-height: 400px; display: grid; place-items: center; text-align: center; }
.empty-state-icon { font-size: 56px; margin-bottom: 16px; }
.empty-state h2 { margin: 0 0 8px; font-size: 20px; font-weight: 700; }
.empty-state p { margin: 0; font-size: 14px; color: var(--text-muted); }

.district-name { margin: 0 0 20px; font-size: 26px; font-weight: 800; letter-spacing: -0.02em; }
.tabs { display: flex; gap: 8px; margin-bottom: 20px; }
.tab-button {
  flex: 1; padding: 12px; border: 1px solid var(--border); border-radius: 12px;
  color: var(--text-main); background: var(--bg-main); cursor: pointer; font-size: 14px; font-weight: 600; transition: 0.2s;
}
.tab-button:hover { border-color: var(--primary); color: var(--primary); }
.tab-button.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.tab-panel { display: none; animation: fadeIn 0.3s ease; }
.tab-panel.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

.word-card {
  margin-bottom: 12px; padding: 16px; border-radius: 16px; background: var(--bg-main);
  border: 1px solid var(--border); transition: 0.2s;
}
.word-card:hover { border-color: #CBD5E1; }
.word { font-size: 18px; font-weight: 700; margin-bottom: 6px; color: var(--primary); }
.meaning { line-height: 1.5; font-size: 14px; color: var(--text-main); }
.example-text { font-style: italic; margin-bottom: 6px; font-size: 15px; }
.example-context { font-size: 13px; color: var(--text-muted); font-weight: 500; }

/* ИГРЫ */
.quiz-wrap { display: flex; flex-direction: column; gap: 20px; }
.quiz-header { display: flex; justify-content: space-between; align-items: center; }
.quiz-title { font-size: 18px; font-weight: 800; }
.quiz-score { padding: 6px 14px; background: var(--bg-main); border-radius: 20px; font-size: 14px; font-weight: 700; color: var(--primary); }
.quiz-progress { height: 6px; background: var(--border); border-radius: 3px; overflow: hidden; }
.quiz-progress-bar { height: 100%; background: var(--primary); transition: width 0.4s; }
.quiz-word-block { text-align: center; padding: 32px 20px; background: var(--bg-main); border-radius: 20px; border: 2px solid var(--border); }
.quiz-question { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; font-weight: 500; }
.quiz-word { font-size: 32px; font-weight: 800; line-height: 1.1; color: var(--text-main); }
.quiz-options { display: flex; flex-direction: column; gap: 10px; }
.quiz-option {
  padding: 16px 20px; background: var(--bg-card); border: 2px solid var(--border); border-radius: 14px;
  cursor: pointer; font-size: 15px; font-weight: 600; color: var(--text-main); text-align: left; transition: 0.2s;
}
.quiz-option:hover:not(.disabled) { border-color: var(--primary); background: #EFF6FF; transform: translateY(-1px); }
.quiz-option.correct { background: #ECFDF5; color: #065F46; border-color: var(--correct); }
.quiz-option.wrong { background: #FEF2F2; color: #991B1B; border-color: var(--wrong); }
.quiz-option.disabled { cursor: default; opacity: 0.8; }
.quiz-next { padding: 16px; background: var(--primary); color: #fff; border: none; border-radius: 14px; font-size: 16px; font-weight: 600; cursor: pointer; transition: 0.2s; }
.quiz-next:hover { background: var(--primary-hover); transform: translateY(-1px); }
.quiz-result { text-align: center; padding: 40px 20px; }
.quiz-result-emoji { font-size: 64px; margin-bottom: 16px; }
.quiz-result-title { font-size: 24px; font-weight: 800; margin-bottom: 8px; }
.quiz-result-text { font-size: 16px; color: var(--text-muted); margin-bottom: 24px; line-height: 1.5; }
.quiz-restart { padding: 14px 28px; background: var(--primary); color: #fff; border: none; border-radius: 12px; font-size: 15px; font-weight: 600; cursor: pointer; }
.quiz-restart:hover { background: var(--primary-hover); }

/* ПОДПИСИ НА КАРТЕ */
.district-label {
  background: rgba(255, 255, 255, 0.95); border: 1px solid var(--border); border-radius: 6px; padding: 4px 8px;
  font-size: 12px; font-weight: 700; color: var(--text-main); white-space: nowrap; box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  font-family: var(--font-main);
}
/* На обзорном зуме подписи цветных районов скрыты, чтобы не наезжали друг на друга */
.labels-hidden .district-label--district { display: none; }
.markers-hidden .district-marker { display: none; }

/* МОДАЛКА ПРАВИЛ */
.rules-overlay {
  position: fixed; inset: 0; background: rgba(15, 23, 42, 0.6); backdrop-filter: blur(4px);
  display: grid; place-items: center; z-index: 9999; padding: 20px; opacity: 0; pointer-events: none; transition: opacity 0.2s;
}
.rules-overlay.open { opacity: 1; pointer-events: auto; }
.rules-modal {
  background: var(--bg-card); border-radius: 24px; width: min(100%, 640px); max-height: 88vh; display: flex; flex-direction: column;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25); transform: translateY(20px) scale(0.98); transition: transform 0.2s;
}
.rules-overlay.open .rules-modal { transform: translateY(0) scale(1); }
.rules-header { padding: 24px 32px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.rules-header h2 { margin: 0; font-size: 22px; font-weight: 800; }
.rules-close { background: var(--bg-main); border: none; color: var(--text-muted); width: 36px; height: 36px; border-radius: 10px; cursor: pointer; font-size: 18px; font-weight: 700; display: grid; place-items: center; }
.rules-close:hover { background: #FEE2E2; color: var(--wrong); }
.rules-body { padding: 32px; overflow-y: auto; line-height: 1.6; font-size: 15px; color: var(--text-main); }
.rules-body h3 { font-size: 16px; font-weight: 700; margin: 24px 0 8px; color: var(--primary); }
.rules-body h3:first-child { margin-top: 0; }
.rules-body p { margin: 8px 0; }
.rules-body ul { margin: 8px 0; padding-left: 24px; }
.rules-body li { margin-bottom: 6px; }
.rules-tip { margin-top: 24px; padding: 16px; background: #EFF6FF; border-left: 4px solid var(--primary); border-radius: 8px; font-size: 14px; }
.rules-actions { padding: 24px 32px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; }
.rules-actions button { padding: 12px 28px; border-radius: 12px; font-size: 15px; font-weight: 600; cursor: pointer; border: none; background: var(--primary); color: #fff; }
.rules-actions button:hover { background: var(--primary-hover); }

@media (max-width: 1000px) {
  .header { top: 12px; left: 12px; right: 12px; padding: 16px 20px; border-radius: 16px; }
  .header p { display: none; }
  .header h1 { font-size: 18px; margin-bottom: 0; }
  .rules-open-btn { width: 32px; height: 32px; font-size: 16px; }
  .sidebar { top: auto; left: 12px; right: 12px; bottom: 12px; width: auto; max-height: 60vh; padding: 20px; border-radius: 20px; }
  .sidebar.collapsed { transform: translateY(calc(100% + 40px)); }
  .map-overlay { display: none; }
  .leaflet-bottom.leaflet-left { bottom: 60vh; }
  body.sidebar-collapsed .leaflet-bottom.leaflet-left { bottom: 12px; }
  .sidebar-reopen-btn { top: auto; bottom: 20px; left: 20px; right: 20px; justify-content: center; padding: 16px; }
  .empty-state { min-height: 250px; }
}