:root {
  --bg-main: #0f1115;
  --bg-card: #181b21;
  --bg-card-hover: #22262f;
  --bg-input: #121418;
  --border: #282d37;
  --border-focus: #3e4554;
  --text-main: #f3f4f6;
  --text-muted: #94a3b8;
  --accent-blue: #3b82f6;
  --accent-green: #10b981;
  --accent-pink: #ec4899;
  --accent-orange: #f59e0b;
  --accent-purple: #a855f7;
  --radius: 10px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
}

.app-container { max-width: 1200px; margin: 0 auto; padding: 24px 20px; }

/* Шапка */
.main-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 24px; border-bottom: 1px solid var(--border); padding-bottom: 18px; gap: 16px;
}
.brand-title { display: flex; align-items: center; gap: 12px; }
.brand-title h1 { font-size: 22px; font-weight: 700; color: #fff; line-height: 1.2; }
.brand-title p { font-size: 13px; color: var(--text-muted); margin-top: 2px; }
.header-user-info { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }

/* Кнопки */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 9px 16px; border-radius: var(--radius); font-size: 13px; font-weight: 600;
  cursor: pointer; border: 1px solid var(--border); background: var(--bg-card);
  color: var(--text-main); text-decoration: none; transition: all 0.15s ease;
  min-height: 38px; touch-action: manipulation;
}
.btn:hover { background: var(--bg-card-hover); border-color: var(--border-focus); }
.btn-primary { background: var(--accent-blue); border-color: var(--accent-blue); color: #fff; }
.btn-primary:hover { background: #2563eb; }

/* Метрики */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; margin-bottom: 28px; }
.stat-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; }
.stat-card h3 { font-size: 11.5px; text-transform: uppercase; color: var(--text-muted); margin-bottom: 6px; letter-spacing: 0.5px; }
.stat-number { font-size: 26px; font-weight: 800; color: #fff; }
.progress-bar-bg { background: #252a34; height: 8px; border-radius: 99px; overflow: hidden; margin-top: 10px; }
.progress-bar-fill { background: var(--accent-green); height: 100%; width: 0%; transition: width 0.4s ease; }

/* Карточки месяцев */
.section-title { font-size: 18px; font-weight: 700; margin-bottom: 16px; color: #fff; }
.months-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 18px; margin-bottom: 36px; }
.month-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px;
  display: flex; flex-direction: column; justify-content: space-between; text-decoration: none; color: inherit; transition: all 0.2s ease;
}
.month-card:hover { transform: translateY(-2px); border-color: var(--accent-blue); }
.month-card.disabled { opacity: 0.45; pointer-events: none; filter: grayscale(0.8); }
.month-badge { display: inline-block; padding: 3px 8px; border-radius: 6px; font-size: 11px; font-weight: 700; text-transform: uppercase; margin-bottom: 12px; }
.badge-active { background: rgba(59, 130, 246, 0.2); color: var(--accent-blue); }
.badge-locked { background: rgba(148, 163, 184, 0.2); color: var(--text-muted); }

/* Фильтры и карточки уроков */
.filter-bar { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }
.lessons-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 14px; }
.lesson-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px;
  cursor: pointer; transition: all 0.15s ease; display: flex; flex-direction: column; justify-content: space-between;
}
.lesson-card:hover { border-color: var(--border-focus); }
.lesson-card.completed { border-left: 4px solid var(--accent-green); }
.lesson-card.in-progress { border-left: 4px solid var(--accent-orange); }

/* Модальное окно */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.85);
  backdrop-filter: blur(4px); display: none; justify-content: center; align-items: center; z-index: 1000; padding: 16px;
}
.modal-window {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px;
  max-width: 760px; width: 100%; max-height: 90vh; overflow-y: auto; padding: 24px;
}
.modal-block { background: #121418; border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; margin-bottom: 14px; font-size: 13.5px; }
.modal-block h4 { font-size: 11.5px; text-transform: uppercase; color: var(--accent-blue); margin-bottom: 6px; letter-spacing: 0.5px; }
.modal-block.eg-block { border-left: 3px solid var(--accent-purple); background: rgba(168, 85, 247, 0.04); }
.modal-block.eg-block h4 { color: #c084fc; }
.modal-block.interactive-block { border-left: 3px solid var(--accent-orange); background: rgba(245, 158, 11, 0.04); }
.modal-block.interactive-block h4 { color: #fbbf24; }
.modal-block.wife { border-left: 3px solid var(--accent-pink); background: rgba(236,72,153,0.03); }
.modal-block.wife h4 { color: var(--accent-pink); }
.modal-block.couple { border-left: 3px solid var(--accent-green); background: rgba(16,185,129,0.03); }
.modal-block.couple h4 { color: var(--accent-green); }

/* ИНТЕРАКТИВНЫЙ БЛОК ЗАДАНИЙ (ORANGE ZONE) */
.quiz-item {
  background: #171a21;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  margin-top: 10px;
}
.quiz-item.solved {
  border-color: rgba(16, 185, 129, 0.5);
  background: rgba(16, 185, 129, 0.05);
}
.quiz-ru { font-weight: 600; font-size: 14px; color: #fff; margin-bottom: 8px; }
.quiz-input-row { display: flex; gap: 8px; margin-bottom: 8px; }
.quiz-input {
  flex: 1; padding: 9px 12px; background: #0c0e12; border: 1px solid var(--border);
  border-radius: 6px; color: #fff; font-size: 13.5px; outline: none;
}
.quiz-input:focus { border-color: var(--accent-blue); }
.quiz-input.correct { border-color: var(--accent-green); color: #a7f3d0; }
.quiz-input.wrong { border-color: #ef4444; }
.quiz-btn {
  padding: 8px 14px; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 6px; color: #fff; font-size: 12.5px; font-weight: 600; cursor: pointer;
}
.quiz-btn:hover { background: var(--bg-card-hover); }
.chips-pool { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.word-chip {
  background: #252a34; border: 1px solid #374151; color: #e2e8f0; padding: 4px 10px;
  border-radius: 6px; font-size: 12px; cursor: pointer; user-select: none;
}
.word-chip:hover { background: #333a48; color: #fff; }
.quiz-feedback { font-size: 12px; margin-top: 4px; font-weight: 500; }
.quiz-feedback.success { color: var(--accent-green); }
.quiz-feedback.error { color: #f87171; }

.task-lock-alert {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 12.5px;
  color: #fbbf24;
  margin-top: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.task-success-alert {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 12.5px;
  color: #34d399;
  margin-top: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* СТИЛЬНЫЕ ПРЯМОУГОЛЬНЫЕ КНОПКИ (RED ZONE) */
.partner-completion-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 14px;
  margin-bottom: 12px;
}
.partner-pill-btn {
  background: #121418;
  border: 1.5px solid var(--border);
  color: var(--text-muted);
  border-radius: var(--radius);
  padding: 14px 10px;
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  user-select: none;
}
.partner-pill-btn:hover:not(:disabled) {
  border-color: #4b5563;
  background: #171a21;
}
.partner-pill-btn.active {
  background: #059669 !important;
  border-color: #10b981 !important;
  color: #ffffff !important;
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
}
.partner-pill-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  filter: grayscale(0.8);
}

.btn-complete-modal {
  width: 100%;
  padding: 13px;
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius);
  background: var(--accent-blue);
  color: #fff;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-complete-modal:hover:not(:disabled) { background: #2563eb; }
.btn-complete-modal:disabled {
  background: #1e232d;
  color: #64748b;
  border: 1px solid #282d37;
  cursor: not-allowed;
}

/* Мобильная адаптация */
@media (max-width: 768px) {
  .app-container { padding: 16px 12px; }
  .main-header { flex-direction: column; align-items: flex-start; gap: 12px; }
  .header-user-info { width: 100%; justify-content: space-between; background: #14171d; padding: 8px 12px; border-radius: var(--radius); }
  .stats-grid, .months-grid, .lessons-grid { grid-template-columns: 1fr; gap: 10px; }
  .filter-bar { display: flex; flex-wrap: nowrap; overflow-x: auto; padding-bottom: 6px; -webkit-overflow-scrolling: touch; }
  .filter-bar .btn { flex-shrink: 0; }
  .modal-overlay { padding: 8px; }
  .modal-window { padding: 16px 14px; max-height: 94vh; }
  .partner-completion-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
}