:root,
[data-theme="light"] {
  --bg: #F2ECE1;
  --surface: #FAF6EF;
  --surface-recessed: #E8DFD1;
  --surface-hover: #DFD4C3;
  --border-subtle: #DDD3C2;
  --border-strong: #C7B9A3;
  --ink-primary: #1F1A16;
  --ink-secondary: #5C5349;
  --ink-tertiary: #7A6F63;
  --accent: #D63B20;
  --accent-hover: #B82F17;
  --accent-soft: #FBEAE6;
  --accent-ink: #9E2410;
  --on-accent: #FFFDF9;
  --ok-bg: #E5EFE8;
  --ok-ink: #1F5B3A;
  --warn-border: #C87D1D;
  --dial-shadow: 0 14px 34px rgba(31, 26, 22, 0.06);
}

[data-theme="dark"] {
  --bg: #1A1613;
  --surface: #241F1B;
  --surface-recessed: #2F2823;
  --surface-hover: #3A312A;
  --border-subtle: #3B332C;
  --border-strong: #52473D;
  --ink-primary: #F4ECE1;
  --ink-secondary: #C2B6A6;
  --ink-tertiary: #9E9182;
  --accent: #E8553A;
  --accent-hover: #F26D54;
  --accent-soft: #3A201B;
  --accent-ink: #FFB4A4;
  --on-accent: #FFFDF9;
  --ok-bg: #1D3326;
  --ok-ink: #8CD3A7;
  --warn-border: #E09838;
  --dial-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  margin: 0;
  padding: 0;
  background-color: var(--bg);
  color: var(--ink-primary);
  font-family: 'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont, 'Apple SD Gothic Neo', sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.mono {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

button,
input,
select,
a {
  font-family: inherit;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.app-shell {
  max-width: 1080px;
  margin: 0 auto;
  padding: 20px 16px 44px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Compact popup fallback mode */
body.is-compact .app-shell {
  max-width: 460px;
  padding: 12px;
  gap: 10px;
}
body.is-compact .topbar-actions,
body.is-compact .site-bar,
body.is-compact .panel-trainer,
body.is-compact .target-picker,
body.is-compact .prealert-block,
body.is-compact .sound-block,
body.is-compact .sound-actions-row,
body.is-compact .panel-desc,
body.is-compact .editorial-section,
body.is-compact .site-footer {
  display: none !important;
}
body.is-compact .workspace-grid {
  grid-template-columns: 1fr;
}
body.is-compact .chronograph {
  padding: 16px;
}
body.is-compact .clock-hms {
  font-size: 2.8rem;
}
body.is-compact .clock-subsec {
  font-size: 1.4rem;
}

/* Header */
.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  color: var(--accent);
}

.brand-name {
  font-size: 1.18rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 8px;
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  color: var(--ink-secondary);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ink-tertiary);
}

.status-badge.is-synced {
  background: var(--ok-bg);
  color: var(--ok-ink);
  border-color: transparent;
}
.status-badge.is-synced .status-dot {
  background: var(--ok-ink);
}

.status-badge.is-syncing {
  background: var(--surface-recessed);
  color: var(--ink-secondary);
}
.status-badge.is-syncing .status-dot {
  background: var(--accent);
}

.status-badge.is-error {
  background: var(--accent-soft);
  color: var(--accent-ink);
  border-color: transparent;
}
.status-badge.is-error .status-dot {
  background: var(--accent);
}

.topbar-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 38px;
  padding: 7px 12px;
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
  background: var(--surface);
  color: var(--ink-primary);
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s;
}

.action-btn:hover {
  background: var(--surface-hover);
  border-color: var(--border-strong);
}

.action-btn.is-muted {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-ink);
}

.action-btn.is-ready {
  background: var(--ok-bg);
  color: var(--ok-ink);
  border-color: transparent;
}

/* Site Selector Bar */
.site-bar {
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: 18px;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sync-form {
  display: flex;
  gap: 10px;
}

.input-well {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface-recessed);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 0 12px;
  min-height: 44px;
  transition: border-color 0.15s, background-color 0.15s;
}

.input-well:focus-within {
  border-color: var(--accent);
  background: var(--surface);
}

.search-icon {
  color: var(--ink-tertiary);
  flex-shrink: 0;
}

.input-well input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--ink-primary);
  font-size: 0.95rem;
  padding: 10px 0;
}

.input-well input::placeholder {
  color: var(--ink-tertiary);
}

.clear-btn {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--ink-secondary);
  cursor: pointer;
}

.clear-btn:hover {
  background: var(--surface-hover);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s, transform 0.08s;
}

.btn:active:not(:disabled) {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-accent {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
  flex-shrink: 0;
}

.btn-accent:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-secondary {
  background: var(--surface-recessed);
  border-color: var(--border-subtle);
  color: var(--ink-primary);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--surface-hover);
  border-color: var(--border-strong);
}

.btn-outline-sm,
.btn-dismiss {
  min-height: 34px;
  padding: 6px 12px;
  font-size: 0.82rem;
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink-primary);
  border: 1px solid var(--border-strong);
}

.error-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-size: 0.88rem;
  font-weight: 600;
}

.preset-groups {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.preset-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.preset-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--ink-tertiary);
  min-width: 64px;
}

.preset-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 34px;
  padding: 6px 11px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  background: var(--surface-recessed);
  color: var(--ink-secondary);
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.14s, border-color 0.14s, color 0.14s;
}

.tab-btn:hover {
  background: var(--surface-hover);
  color: var(--ink-primary);
  border-color: var(--border-strong);
}

.tab-btn.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
}

.tab-btn.is-test {
  background: var(--accent-soft);
  border-color: transparent;
  color: var(--accent-ink);
}

.tab-btn.is-test:hover {
  background: var(--accent);
  color: var(--on-accent);
}

.chip-remove {
  font-size: 0.95rem;
  line-height: 1;
  color: var(--ink-tertiary);
  padding-left: 2px;
}

.chip-remove:hover {
  color: var(--accent);
}

/* Centerpiece Chronograph Dial */
.chronograph {
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: 24px;
  padding: 24px 26px;
  box-shadow: var(--dial-shadow);
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition: border-color 0.2s, background-color 0.2s;
}

.chronograph.state-warning {
  border-color: var(--warn-border);
}

.chronograph.state-critical,
.chronograph.state-ddang {
  border-color: var(--accent);
}

.chronograph.state-ddang {
  background: var(--accent-soft);
}

.dial-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.dial-site-info {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
}

.site-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink-primary);
}

.domain-sub {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--ink-tertiary);
}

.subtle-action {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  min-height: 30px;
  padding: 4px 10px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  background: var(--surface-recessed);
  color: var(--ink-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}

.subtle-action:hover {
  background: var(--surface-hover);
  color: var(--ink-primary);
}

.dial-date-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.date-label {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--ink-secondary);
}

.subsec-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--ink-secondary);
  cursor: pointer;
}

.subsec-toggle input {
  accent-color: var(--accent);
}

.sync-progress {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sync-progress-copy {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink-secondary);
}

.progress-track {
  width: 100%;
  height: 6px;
  border-radius: 8px;
  background: var(--surface-recessed);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  border-radius: 8px;
  background: var(--accent);
  transition: width 0.2s ease-out;
}

.clock-face {
  display: flex;
  align-items: baseline;
  justify-content: center;
  text-align: center;
  padding: 12px 0 8px;
  white-space: nowrap;
  line-height: 1.02;
}

.clock-hms {
  font-size: clamp(3rem, 9.2vw, 6.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--ink-primary);
}

.clock-subsec {
  font-size: clamp(1.45rem, 3.8vw, 2.75rem);
  font-weight: 700;
  color: var(--accent);
  margin-left: 4px;
  min-width: 3.1ch;
  text-align: left;
}

.dial-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  border-top: 1px solid var(--border-subtle);
  padding-top: 14px;
}

.comparison-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.comparison-badge {
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--ink-primary);
  background: var(--surface-recessed);
  padding: 5px 11px;
  border-radius: 8px;
}

.my-clock {
  font-size: 0.84rem;
  color: var(--ink-tertiary);
}

.guide-text {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--accent-ink);
}

/* Asymmetric Lower Workspace */
.workspace-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 16px;
  align-items: stretch;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: 18px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.panel-head h2 {
  margin: 0;
  font-size: 1.08rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.panel-desc {
  margin: 3px 0 0;
  font-size: 0.84rem;
  color: var(--ink-secondary);
}

.switch-control {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--ink-primary);
  cursor: pointer;
  flex-shrink: 0;
}

.switch-control input {
  accent-color: var(--accent);
}

.ddang-alert {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 10px;
  background: var(--accent);
  color: var(--on-accent);
}

.ddang-alert-inner {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.96rem;
}

.countdown-well {
  background: var(--surface-recessed);
  border-radius: 14px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.countdown-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
}

.countdown-label {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--ink-secondary);
}

.countdown-readout {
  font-size: 1.48rem;
  font-weight: 800;
  color: var(--ink-primary);
}

.countdown-readout.is-warning {
  color: var(--warn-border);
}

.countdown-readout.is-critical {
  color: var(--accent);
}

.is-countdown-track {
  background: var(--surface);
}

.target-picker {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.field-label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--ink-secondary);
}

.target-form {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.target-input-group {
  display: flex;
  gap: 8px;
  align-items: stretch;
}

.time-text-input {
  flex: 1 1 auto;
  min-width: 0;
  min-height: 44px;
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
  background: var(--surface-recessed);
  color: var(--ink-primary);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: border-color 0.15s, background-color 0.15s;
}

.time-text-input:focus {
  border-color: var(--accent);
  background: var(--surface);
  outline: none;
}

.time-text-input.is-error {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.btn-apply-time {
  min-height: 44px;
  padding: 8px 16px;
  flex-shrink: 0;
}

.field-hint {
  margin: 0;
  font-size: 0.78rem;
  color: var(--ink-tertiary);
}

.field-hint.is-error {
  color: var(--accent-ink);
  font-weight: 600;
}

.select-input {
  min-height: 40px;
  padding: 7px 11px;
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
  background: var(--surface-recessed);
  color: var(--ink-primary);
  font-size: 0.92rem;
}

.quick-target-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

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

.check-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  font-size: 0.85rem;
  color: var(--ink-primary);
}

.check-group label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.check-group input {
  accent-color: var(--accent);
}

.sound-block {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 12px;
}

.sound-mode-col,
.sound-volume-col {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sound-volume-col input[type="range"] {
  width: 100%;
  min-height: 36px;
  accent-color: var(--accent);
}

.sound-actions-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

/* Practice Panel */
.avg-label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--ink-secondary);
  background: var(--surface-recessed);
  padding: 4px 10px;
  border-radius: 8px;
  flex-shrink: 0;
}

.trainer-well {
  background: var(--surface-recessed);
  border-radius: 14px;
  padding: 18px 14px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.trainer-sublabel {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink-tertiary);
}

.trainer-digits {
  font-size: clamp(2.1rem, 4.6vw, 3rem);
  font-weight: 800;
  color: var(--ink-primary);
}

.trainer-digits.is-hit-window {
  color: var(--ok-ink);
}

.trainer-msg {
  margin: 0;
  font-size: 0.86rem;
  color: var(--ink-secondary);
  min-height: 2.6em;
  line-height: 1.45;
}

.trainer-msg.is-perfect {
  color: var(--ok-ink);
  font-weight: 700;
}

.trainer-msg.is-early {
  color: var(--accent);
  font-weight: 700;
}

.trainer-msg.is-late {
  color: var(--warn-border);
  font-weight: 700;
}

.trainer-buttons {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 8px;
}

.trainer-history-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.trainer-history {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.trainer-history li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.84rem;
  padding: 8px 12px;
  border-radius: 10px;
  background: var(--surface-recessed);
  color: var(--ink-secondary);
}

.trainer-history li.is-empty {
  justify-content: center;
  color: var(--ink-tertiary);
}

/* Responsive Breakpoints (375px safe, split-screen friendly) */
@media (max-width: 860px) {
  .workspace-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .app-shell {
    padding: 12px 12px 32px;
    gap: 12px;
  }
  .site-bar,
  .panel {
    padding: 15px;
  }
  .chronograph {
    padding: 18px 15px;
  }
  .sync-form {
    flex-direction: column;
  }
  .sound-block,
  .sound-actions-row,
  .trainer-buttons {
    grid-template-columns: 1fr;
  }
  .action-btn {
    min-height: 44px;
  }
  .tab-btn {
    min-height: 40px;
  }
}

/* Below-the-fold Practical Guide, FAQ & Footer */
.editorial-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 8px;
}

.editorial-card {
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: 18px;
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.editorial-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
}

.editorial-head h2 {
  margin: 0;
  font-size: 1.08rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.editorial-lead {
  margin: 0;
  font-size: 0.88rem;
  color: var(--ink-secondary);
  line-height: 1.65;
}

.text-link {
  color: var(--accent-ink);
  font-weight: 700;
  font-size: 0.86rem;
  text-decoration: none;
}

.text-link:hover {
  text-decoration: underline;
}

.checklist-grid,
.site-tips-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.info-tile {
  background: var(--surface-recessed);
  border-radius: 14px;
  padding: 15px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.info-tile h3 {
  margin: 0;
  font-size: 0.94rem;
  font-weight: 800;
  color: var(--ink-primary);
}

.info-tile p {
  margin: 0;
  font-size: 0.84rem;
  color: var(--ink-secondary);
  line-height: 1.6;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.faq-item {
  background: var(--surface-recessed);
  border-radius: 12px;
  padding: 14px 16px;
}

.faq-item h3 {
  margin: 0 0 6px;
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--ink-primary);
}

.faq-item p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--ink-secondary);
  line-height: 1.62;
}

/* Site Footer */
.site-footer {
  margin-top: 8px;
  padding: 18px 4px 12px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.footer-nav a {
  color: var(--ink-secondary);
  text-decoration: none;
  font-size: 0.84rem;
  font-weight: 600;
}

.footer-nav a:hover,
.footer-nav a[aria-current="page"] {
  color: var(--accent-ink);
  text-decoration: underline;
}

.footer-meta {
  font-size: 0.8rem;
  color: var(--ink-tertiary);
  line-height: 1.6;
}

.footer-meta a {
  color: var(--ink-secondary);
  font-weight: 600;
}

/* Static Document Pages (/guide, /about, /privacy, /terms) */
.doc-nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.doc-nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 6px 11px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  background: var(--surface);
  color: var(--ink-secondary);
  font-size: 0.83rem;
  font-weight: 600;
  text-decoration: none;
}

.doc-nav-link:hover {
  background: var(--surface-hover);
  color: var(--ink-primary);
}

.doc-nav-link[aria-current="page"] {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
}

.doc-article {
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 28px 28px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.doc-hero {
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 16px;
}

.doc-hero h1 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.doc-hero p {
  margin: 8px 0 0;
  font-size: 0.92rem;
  color: var(--ink-secondary);
  line-height: 1.6;
}

.doc-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.doc-section h2 {
  margin: 0;
  font-size: 1.06rem;
  font-weight: 800;
  color: var(--ink-primary);
}

.doc-section h3 {
  margin: 6px 0 0;
  font-size: 0.94rem;
  font-weight: 700;
  color: var(--ink-primary);
}

.doc-section p,
.doc-section li {
  margin: 0;
  font-size: 0.9rem;
  color: var(--ink-secondary);
  line-height: 1.7;
}

.doc-section ul,
.doc-section ol {
  margin: 0;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.doc-section a {
  color: var(--accent-ink);
  font-weight: 600;
}

.doc-callout {
  background: var(--surface-recessed);
  border-radius: 12px;
  padding: 14px 16px;
  font-size: 0.86rem;
  color: var(--ink-secondary);
  line-height: 1.65;
}

@media (max-width: 720px) {
  .checklist-grid,
  .site-tips-grid {
    grid-template-columns: 1fr;
  }
  .doc-article {
    padding: 20px 16px;
  }
  .editorial-card {
    padding: 18px 16px;
  }
}