/* ── PAGE SHELL ── */
.page-shell {
  display: flex;
  min-height: calc(100vh - 61px);
}

/* ── MAIN CONTENT ── */
.main-content {
  flex: 1;
  min-width: 0;
  padding: 40px 40px 72px;
  display: flex;
  flex-direction: column;
  gap: 48px;
  overflow-anchor: none;
}

/* ── DOMAIN HEADER ── */
.domain-header {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.progress-labels {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.progress-label-text {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.55px;
  text-transform: uppercase;
  color: var(--muted);
}

/* Stat boxes */
.stat-boxes {
  display: none;
}

.stat-box-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 400;
  line-height: 15px;
  color: var(--muted);
}

.stat-box.active .stat-box-label {
  color: var(--primary);
}

.stat-box-value {
  font-size: 20px;
  font-weight: 600;
  line-height: 28px;
  color: var(--ink-var);
}

.stat-box.active .stat-box-value {
  color: var(--ink);
}

/* ── CONTENT AREA ── */
.content-area {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.content-left {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

/* ── SECTION CARDS ── */
.section-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.section-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.section-title {
  font-size: 20px;
  font-weight: 600;
  line-height: 28px;
  color: var(--ink);
}

.ts-badges {
  display: flex;
  gap: 8px;
}

.ts-badge {
  background: var(--surface-3);
  border-radius: 9999px;
  padding: 2px 8px;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  line-height: 19px;
}

/* DO / DON'T columns */
.do-dont {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.do-col,
.dont-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.col-heading {
  display: flex;
  align-items: center;
  gap: 8px;
}

.col-heading-icon {
  width: 11.67px;
  height: 11.67px;
  border-radius: 2px;
  flex: 0 0 11.67px;
}

.col-heading-icon.do {
  background: var(--cyan);
}
.col-heading-icon.dont {
  background: var(--salmon);
}

.col-heading-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  line-height: 12px;
  letter-spacing: 1.2px;
}

.col-heading-text.do {
  color: var(--cyan);
}
.col-heading-text.dont {
  color: var(--salmon);
}

.do-dont-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.do-dont-item {
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.do-dont-bullet {
  font-size: 16px;
  line-height: 24px;
  padding-top: 0px;
  flex: 0 0 9px;
}

.do-dont-bullet.do {
  color: var(--cyan);
}
.do-dont-bullet.dont {
  color: var(--salmon);
}

.do-dont-text {
  font-size: 16px;
  line-height: 24px;
  color: var(--ink);
}

/* Warning callout */
.callout-warning {
  background: rgba(147, 0, 10, 0.2);
  border: 1px solid rgba(255, 180, 171, 0.3);
  border-radius: 0.8px;
  padding: 16px 16px 16px 16px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.callout-warning-icon {
  font-size: 18px;
  flex: 0 0 22px;
  color: var(--salmon);
  line-height: 1;
  margin-top: 2px;
}

.callout-warning-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.callout-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  line-height: 12px;
  letter-spacing: 1.2px;
  color: var(--salmon);
  margin-bottom: 4px;
}

.callout-text {
  font-size: 14px;
  line-height: 20px;
  color: var(--ink-var);
}

/* Pro-tip callout */
.callout-tip {
  background: var(--cyan-soft);
  border-left: 4px solid var(--cyan);
  border-radius: 0 0.8px 0.8px 0;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.callout-tip-header {
  display: flex;
  align-items: center;
  gap: 8px;
}

.callout-tip-icon {
  color: var(--cyan);
  font-size: 12px;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
}

.callout-tip-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.2px;
  color: var(--cyan);
}

.callout-tip-text {
  font-size: 14px;
  line-height: 20px;
  color: var(--ink);
}

/* Mini cards */
.mini-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.mini-card {
  background: var(--surface-1);
  border: 1px solid var(--line);
  border-radius: 0.8px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.mini-card-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  line-height: 12px;
  letter-spacing: 1.2px;
  color: var(--primary);
}

.mini-card-body {
  font-size: 14px;
  line-height: 23px;
  color: var(--muted);
}

/* Good/Bad description lists */
.desc-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.desc-col-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 12px;
}

.desc-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 16px;
}

.desc-list li {
  font-size: 14px;
  color: var(--muted);
  line-height: 20px;
  list-style: disc;
}

/* Hierarchy cards */
.hierarchy-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.hier-card {
  background: var(--surface-3);
  border: 1px solid var(--line);
  border-radius: 0.8px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.hier-card.active-hier {
  border-color: rgba(198, 191, 255, 0.3);
}

.hier-card-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 400;
  line-height: 15px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--primary);
}

.hier-card-code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  line-height: 20px;
  color: var(--ink);
}

.hier-card-desc {
  font-size: 11px;
  line-height: 16px;
  color: var(--muted);
}

/* Generic content blocks */
.content-block {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.content-block + .content-block {
  border-top: 1px solid var(--line);
  padding-top: 24px;
}

.block-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.block-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 24px;
  color: var(--ink-var);
  list-style: none;
}

.block-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 1px;
  background: var(--primary);
}

.block-list.cyan li::before {
  background: var(--cyan);
}

code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  background: var(--surface-4);
  padding: 1px 5px;
  border-radius: 4px;
  color: var(--ink);
  white-space: normal;
}

/* VS rows */
.vs-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.vs-card {
  background: var(--surface-3);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}

.vs-card-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}

.vs-card-label.cyan {
  color: var(--cyan);
}
.vs-card-label.red {
  color: var(--salmon);
}

.vs-card p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
}

.sub-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}

/* ── RIGHT SIDEBAR ── */
.content-right {
  flex: 0 0 299px;
  position: sticky;
  top: 80px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.quick-rules-card {
  background: rgba(21, 23, 29, 0.8);
  border: 1px solid var(--line);
  border-radius: 12px;
  backdrop-filter: blur(6px);
  padding: 25px;
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.qr-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.qr-header-icon {
  color: var(--primary);
  font-size: 18px;
}

.qr-title {
  font-size: 20px;
  font-weight: 600;
  line-height: 28px;
  color: var(--ink);
}

.qr-subtitle {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  line-height: 16px;
  letter-spacing: -0.6px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}

.qr-rules {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-bottom: 16px;
}

.qr-rule {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.qr-check {
  width: 16px;
  height: 16px;
  color: var(--cyan);
  flex: 0 0 16px;
  margin-top: 2px;
  font-size: 14px;
  font-weight: 700;
}

.qr-rule-text {
  font-size: 14px;
  line-height: 19px;
  color: var(--ink);
}

/* Distractors block */
.distractor-block {
  border-top: 1px solid var(--line);
  padding-top: 24px;
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.distractor-heading {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.2px;
  color: var(--salmon);
}

.distractor-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.distractor-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.distractor-x {
  width: 11.67px;
  height: 11.67px;
  border-radius: 2px;
  background: var(--salmon);
  flex: 0 0 11.67px;
}

.distractor-text {
  font-size: 12px;
  line-height: 16px;
  color: var(--ink-var);
}

/* Exam logistics */
.exam-logistics {
  background: var(--surface-3);
  border: 1px solid var(--line);
  border-radius: 0.8px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 16px;
}

.exam-logistics-heading {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.2px;
  color: var(--muted);
  margin-bottom: 8px;
}

.exam-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.exam-row-key {
  font-size: 12px;
  color: var(--ink);
}

.exam-row-val {
  font-size: 12px;
  font-weight: 700;
  color: var(--ink);
}

.exam-row-val.cyan {
  color: var(--cyan);
}

/* Atmospheric card */
.atmo-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  height: 128px;
  background: linear-gradient(135deg, rgba(198, 191, 255, 0.04), rgba(104, 214, 227, 0.04));
  display: flex;
  align-items: center;
  justify-content: center;
}

.atmo-inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.atmo-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--muted);
}

.atmo-val {
  font-size: 20px;
  font-weight: 600;
  color: var(--primary);
}

/* Domain panels */
.domain-panel {
  display: none;
}
.domain-panel.active {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

/* .domain-footer base shared via .domain-nav-footer in styles.css */

/* ── RESPONSIVE ── */
@media (max-width: 820px) {
  .page-shell {
    flex-direction: column;
  }
  .content-area {
    flex-direction: column;
  }
  .content-right {
    flex: none;
    width: 100%;
    position: static;
  }
}

@media (max-width: 640px) {
  .main-content {
    padding: 24px 20px 48px;
  }
  .section-card {
    padding: 20px;
  }
  .section-card-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .header-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .do-dont,
  .mini-cards,
  .desc-cols,
  .hierarchy-cards,
  .vs-row {
    grid-template-columns: 1fr;
  }
  /* .domain-footer mobile stacking now handled by shared .domain-nav-footer in styles.css */
}