/* =============================================================
   DevOps Academy — Стили раздела «Тесты» (v2: категории + ранги)
   Используют переменные из style.css. Дополнительный акцент —
   --cat-color, задаётся inline через style="--cat-color:#xxx".
   ============================================================= */

/* ────────────── РАНК-ПЛАШКА (главная) ────────────── */
.rank-card {
  position: relative;
  background:
    radial-gradient(circle at 0% 0%, rgba(201,100,66,0.10), transparent 50%),
    linear-gradient(135deg, var(--bg-elevated) 0%, var(--accent-soft) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  margin: 24px 0 32px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 28px;
  align-items: center;
  overflow: hidden;
}
.rank-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 100% 100%, var(--rank-color, var(--accent)) 0%, transparent 60%);
  opacity: 0.07;
  pointer-events: none;
}

.rank-icon {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--rank-color, var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 44px;
  box-shadow: 0 0 0 6px rgba(255,255,255,0.4), 0 6px 24px rgba(0,0,0,0.08);
  flex-shrink: 0;
}
.rank-body { min-width: 0; }
.rank-eyebrow {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 4px;
  font-weight: 600;
}
.rank-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--rank-color, var(--text));
  margin-bottom: 4px;
  line-height: 1.1;
}
.rank-tagline {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 14px;
}

.xp-bar {
  height: 12px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 100px;
  overflow: hidden;
  position: relative;
}
.xp-bar > span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--rank-color, var(--accent)), color-mix(in srgb, var(--rank-color, var(--accent)) 60%, #ffd180));
  border-radius: 100px;
  transition: width 0.6s cubic-bezier(.2,.7,.2,1);
}
.xp-meta {
  display: flex;
  justify-content: space-between;
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 8px;
  font-feature-settings: 'tnum';
}
.xp-meta b { color: var(--text); font-weight: 600; }

.rank-stats {
  display: grid;
  grid-template-columns: repeat(2, auto);
  gap: 18px 24px;
  text-align: right;
}
.rank-stats .stat-val {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
  font-feature-settings: 'tnum';
}
.rank-stats .stat-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ────────────── СЕТКА КАТЕГОРИЙ ────────────── */
.cat-group {
  margin-top: 36px;
}
.cat-group-title {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 14px;
}
.cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}

.cat-card {
  position: relative;
  display: block;
  padding: 20px 22px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-left: 4px solid var(--cat-color, var(--accent));
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text);
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
  overflow: hidden;
}
.cat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--cat-color, var(--accent));
}
.cat-card-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
}
.cat-card-icon {
  font-size: 28px;
  line-height: 1;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: color-mix(in srgb, var(--cat-color, var(--accent)) 12%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.cat-card-title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.2;
  flex: 1;
  min-width: 0;
}
.cat-card-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.45;
  margin-bottom: 14px;
  min-height: 38px;
}

.cat-levels {
  display: flex;
  gap: 6px;
  margin-bottom: 10px;
}
.cat-level-pill {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 5px 8px;
  font-size: 11.5px;
  font-weight: 600;
  border-radius: 6px;
  background: var(--bg-soft);
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-family: var(--font-mono);
  border: 1px solid transparent;
}
.cat-level-pill.has    { background: var(--bg-soft); color: var(--text-muted); }
.cat-level-pill.done   { background: var(--success-soft); color: var(--success); }
.cat-level-pill.fail   { background: var(--warning-soft); color: var(--warning); }
.cat-level-pill.locked { opacity: 0.4; }

.cat-progress {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.cat-progress .bar {
  flex: 1;
  margin: 0 10px;
  height: 4px;
  background: var(--bg-soft);
  border-radius: 100px;
  overflow: hidden;
}
.cat-progress .bar > span {
  display: block;
  height: 100%;
  background: var(--cat-color, var(--accent));
  border-radius: 100px;
}

.cat-card.complete::after {
  content: "✓";
  position: absolute;
  top: 14px;
  right: 14px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--success);
  color: white;
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ────────────── СТРАНИЦА КАТЕГОРИИ: УРОВНИ ────────────── */
.category-hero {
  display: flex;
  gap: 24px;
  align-items: center;
  padding: 28px 32px;
  margin: 16px 0 28px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-left: 6px solid var(--cat-color, var(--accent));
  border-radius: var(--radius);
}
.category-hero .cat-card-icon {
  width: 64px; height: 64px; font-size: 40px; border-radius: 14px;
}
.category-hero h1 { margin: 0; font-size: 28px; }
.category-hero .desc { color: var(--text-muted); margin: 4px 0 0; font-size: 15px; }

.level-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin: 24px 0 32px;
}
.level-card {
  display: block;
  padding: 22px 24px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-top: 4px solid var(--lvl-color, var(--accent));
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text);
  position: relative;
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}
.level-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.level-card.disabled {
  opacity: 0.55;
  pointer-events: none;
  filter: grayscale(0.4);
}
.level-card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.level-card-head .emoji { font-size: 24px; }
.level-card-head .title { font-size: 20px; font-weight: 600; color: var(--lvl-color); }
.level-card-head .badge-xp {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 100px;
  background: color-mix(in srgb, var(--lvl-color) 14%, transparent);
  color: var(--lvl-color);
}
.level-card .lvl-desc { color: var(--text-muted); font-size: 13.5px; line-height: 1.5; margin-bottom: 14px; }
.level-card .lvl-meta {
  display: flex;
  gap: 14px;
  font-size: 12px;
  color: var(--text-dim);
  font-family: var(--font-mono);
}
.level-card .lvl-meta span::before { content: "·  "; color: var(--border-strong); }
.level-card .lvl-meta span:first-child::before { content: ""; }
.level-card .lvl-score {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--border);
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.level-card .lvl-score b { color: var(--text); font-weight: 600; font-family: var(--font-mono); }
.level-card.passed .lvl-score b { color: var(--success); }
.level-card.locked-soon { color: var(--text-muted); }
.level-card .locked-note {
  font-size: 12px;
  color: var(--warning);
  font-style: italic;
  margin-top: 8px;
}

/* ────────────── СЕКЦИЯ ДОСТИЖЕНИЙ ────────────── */
.ach-section {
  margin: 40px 0;
}
.ach-section h2 { margin-top: 0; }
.ach-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}
.ach-card {
  padding: 14px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  gap: 12px;
  align-items: flex-start;
  transition: all 0.15s;
}
.ach-card.unlocked {
  border-color: var(--accent);
  background: linear-gradient(135deg, var(--bg-elevated), var(--accent-soft));
}
.ach-card.locked { opacity: 0.55; filter: grayscale(0.7); }
.ach-card .icon {
  font-size: 28px;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-soft);
  border-radius: 10px;
}
.ach-card.unlocked .icon { background: var(--accent-soft); }
.ach-card .ach-title { font-weight: 600; font-size: 13.5px; margin-bottom: 2px; }
.ach-card .ach-desc { font-size: 12px; color: var(--text-muted); line-height: 1.4; }

/* ────────────── ОБЩИЙ ПРОГРЕСС МИНИ-СТРОКА ────────────── */
.overall-strip {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 12px 18px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  font-size: 13px;
  color: var(--text-muted);
}
.overall-strip b { color: var(--text); font-weight: 600; font-feature-settings: 'tnum'; }
.overall-strip .strip-bar {
  flex: 1;
  height: 6px;
  background: var(--bg);
  border-radius: 100px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.overall-strip .strip-bar > span {
  display: block;
  height: 100%;
  background: var(--accent);
}

.tests-reset {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s;
}
.tests-reset:hover { color: var(--danger); border-color: var(--danger); }

/* ────────────── РАННЕР ТЕСТА (как раньше + улучшения) ────────────── */
.test-runner { max-width: 760px; margin: 0 auto; }

.test-header { margin-bottom: 24px; }
.test-header h1 { margin-bottom: 6px; }
.test-header .meta {
  color: var(--text-muted);
  font-size: 13.5px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
}
.test-header .level-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 12px;
  background: color-mix(in srgb, var(--lvl-color, var(--accent)) 14%, transparent);
  color: var(--lvl-color, var(--accent));
}

.test-progress-bar {
  height: 6px;
  background: var(--bg-soft);
  border-radius: 100px;
  margin: 20px 0 28px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.test-progress-bar > span {
  display: block;
  height: 100%;
  background: var(--lvl-color, var(--accent));
  border-radius: 100px;
  transition: width 0.3s ease;
}

.question {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 30px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}
.question .q-num {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--lvl-color, var(--accent));
  margin-bottom: 8px;
}
.question .q-text {
  font-size: 18px;
  font-weight: 500;
  line-height: 1.4;
  margin-bottom: 22px;
  color: var(--text);
}

.options { display: flex; flex-direction: column; gap: 10px; }
.option {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  cursor: pointer;
  transition: all 0.12s;
  font-size: 15px;
  color: var(--text);
  user-select: none;
}
.option:hover { border-color: var(--accent); background: var(--accent-soft); }
.option .letter {
  flex-shrink: 0;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--bg-soft);
  border: 1px solid var(--border-strong);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 600; color: var(--text-muted);
  font-family: var(--font-mono);
}
.option input { display: none; }
.option.selected { border-color: var(--accent); background: var(--accent-soft); }
.option.selected .letter { background: var(--accent); color: white; border-color: var(--accent); }
.option.correct { border-color: var(--success); background: var(--success-soft); }
.option.correct .letter { background: var(--success); color: white; border-color: var(--success); }
.option.wrong { border-color: var(--danger); background: var(--danger-soft); }
.option.wrong .letter { background: var(--danger); color: white; border-color: var(--danger); }
.option.locked { cursor: default; }

.q-explain {
  margin-top: 18px;
  padding: 14px 16px;
  background: var(--info-soft);
  border-left: 3px solid var(--info);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 14px;
  color: var(--text);
}
.q-explain b { color: var(--info); }

.test-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-top: 28px;
}
.test-nav .spacer { flex: 1; }

/* ────────────── ИТОГОВЫЙ ЭКРАН ────────────── */
.test-result {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 36px;
  text-align: center;
  margin-bottom: 24px;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}
.test-result::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, var(--lvl-color, var(--accent)) 0%, transparent 60%);
  opacity: 0.06;
  pointer-events: none;
}
.test-result .result-emoji { font-size: 56px; line-height: 1; margin-bottom: 14px; }
.test-result .result-headline { font-size: 26px; font-weight: 700; margin-bottom: 4px; }
.test-result .result-sub { color: var(--text-muted); margin-bottom: 24px; }

.result-score {
  font-size: 64px;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
  font-feature-settings: "tnum";
}
.result-score .pct { font-size: 32px; color: var(--text-muted); font-weight: 500; }
.result-detail { font-size: 14px; color: var(--text-muted); margin-top: 6px; }

.result-pass .result-score { color: var(--success); }
.result-fail .result-score { color: var(--warning); }

.result-rewards {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 24px 0 8px;
}
.reward-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 100px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
  font-size: 14px;
  border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
}
.reward-chip.xp { background: color-mix(in srgb, var(--accent) 14%, transparent); }
.reward-chip.rank { background: color-mix(in srgb, var(--rank-color, var(--accent)) 14%, transparent); color: var(--rank-color); }
.reward-chip.ach { background: var(--success-soft); color: var(--success); border-color: color-mix(in srgb, var(--success) 20%, transparent); }

.result-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 24px;
  flex-wrap: wrap;
}

/* Разбор по вопросам */
.review-list { margin-top: 32px; }
.review-list h3 { margin-top: 0; }
.review-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 10px;
  background: var(--bg-elevated);
  font-size: 14.5px;
}
.review-item .review-q { font-weight: 500; margin-bottom: 6px; }
.review-item .review-line { display: flex; gap: 8px; align-items: flex-start; font-size: 13.5px; color: var(--text-muted); }
.review-item .review-line .mark { width: 16px; flex-shrink: 0; }
.review-item .ok { color: var(--success); }
.review-item .err { color: var(--danger); }

/* ────────────── СТАРТ ТЕСТА (intro перед запуском) ────────────── */
.test-start {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-top: 4px solid var(--lvl-color, var(--accent));
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}
.test-start .emoji { font-size: 48px; margin-bottom: 12px; }
.test-start h2 { margin: 0 0 6px; }
.test-start .desc { color: var(--text-muted); margin-bottom: 22px; font-size: 14.5px; }
.test-start .start-meta {
  display: flex; gap: 28px; justify-content: center; flex-wrap: wrap;
  margin-bottom: 24px; font-size: 13px; color: var(--text-muted);
}
.test-start .start-meta b { color: var(--text); display: block; font-size: 20px; font-feature-settings:'tnum'; }

/* ────────────── ПУСТЫЕ СОСТОЯНИЯ ────────────── */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
  background: var(--bg-soft);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
}
.empty-state .emoji { font-size: 36px; margin-bottom: 8px; display: block; }
.empty-state h3 { margin: 0 0 6px; color: var(--text); }

/* ────────────── АДАПТИВ ────────────── */
@media (max-width: 768px) {
  .rank-card { grid-template-columns: 1fr; text-align: center; padding: 20px; }
  .rank-card .rank-icon { margin: 0 auto; }
  .rank-stats { grid-template-columns: repeat(2, 1fr); text-align: center; }
  .rank-stats .stat-val { font-size: 18px; }
  .category-hero { flex-direction: column; text-align: center; align-items: center; padding: 20px; }
  .test-start { padding: 24px 18px; }
}
@media (max-width: 480px) {
  .question { padding: 20px; }
  .question .q-text { font-size: 16px; }
  .option { padding: 12px 14px; font-size: 14px; }
  .result-score { font-size: 48px; }
  .result-score .pct { font-size: 24px; }
  .test-result { padding: 28px 20px; }
}