/* Modern Web Guidance: Apply color-scheme to :root and map <meta name="color-scheme"> overrides */
:root {
  color-scheme: light dark;

  &:has(> head > meta[name="color-scheme"][content="dark"]) {
    color-scheme: dark;
  }
  &:has(> head > meta[name="color-scheme"][content="light"]) {
    color-scheme: light;
  }

  /* Light & Dark Tokens */
  --bg-canvas-light: #f4f6fb;
  --bg-canvas-dark: #0d1117;
  --bg-surface-light: #ffffff;
  --bg-surface-dark: #161b22;
  --bg-elevated-light: #edf2fa;
  --bg-elevated-dark: #21262d;

  --text-primary-light: #0f172a;
  --text-primary-dark: #f0f6fc;
  --text-secondary-light: #475569;
  --text-secondary-dark: #9ca3af;

  --border-subtle-light: #cbd5e1;
  --border-subtle-dark: #30363d;

  --brand-primary-light: #1a73e8;
  --brand-primary-dark: #58a6ff;
  --brand-on-primary-light: #ffffff;
  --brand-on-primary-dark: #071324;

  --success-bg-light: #ecfdf5;
  --success-bg-dark: #0a2e1f;
  --success-border-light: #059669;
  --success-border-dark: #34d399;
  --success-text-light: #065f46;
  --success-text-dark: #6ee7b7;

  --danger-bg-light: #fef2f2;
  --danger-bg-dark: #351317;
  --danger-border-light: #dc2626;
  --danger-border-dark: #f87171;
  --danger-text-light: #991b1b;
  --danger-text-dark: #fca5a5;

  /* Default fallback tokens */
  --bg-canvas: var(--bg-canvas-light);
  --bg-surface: var(--bg-surface-light);
  --bg-elevated: var(--bg-elevated-light);
  --text-primary: var(--text-primary-light);
  --text-secondary: var(--text-secondary-light);
  --border-color: var(--border-subtle-light);
  --brand-primary: var(--brand-primary-light);
  --brand-on-primary: var(--brand-on-primary-light);
  --success-bg: var(--success-bg-light);
  --success-border: var(--success-border-light);
  --success-text: var(--success-text-light);
  --danger-bg: var(--danger-bg-light);
  --danger-border: var(--danger-border-light);
  --danger-text: var(--danger-text-light);

  /* MANDATORY Fallback for browsers without light-dark() support */
  @media (prefers-color-scheme: dark) {
    --bg-canvas: var(--bg-canvas-dark);
    --bg-surface: var(--bg-surface-dark);
    --bg-elevated: var(--bg-elevated-dark);
    --text-primary: var(--text-primary-dark);
    --text-secondary: var(--text-secondary-dark);
    --border-color: var(--border-subtle-dark);
    --brand-primary: var(--brand-primary-dark);
    --brand-on-primary: var(--brand-on-primary-dark);
    --success-bg: var(--success-bg-dark);
    --success-border: var(--success-border-dark);
    --success-text: var(--success-text-dark);
    --danger-bg: var(--danger-bg-dark);
    --danger-border: var(--danger-border-dark);
    --danger-text: var(--danger-text-dark);
  }

  /* Modern light-dark() resolution */
  @supports (color: light-dark(white, black)) {
    --bg-canvas: light-dark(var(--bg-canvas-light), var(--bg-canvas-dark));
    --bg-surface: light-dark(var(--bg-surface-light), var(--bg-surface-dark));
    --bg-elevated: light-dark(var(--bg-elevated-light), var(--bg-elevated-dark));
    --text-primary: light-dark(var(--text-primary-light), var(--text-primary-dark));
    --text-secondary: light-dark(var(--text-secondary-light), var(--text-secondary-dark));
    --border-color: light-dark(var(--border-subtle-light), var(--border-subtle-dark));
    --brand-primary: light-dark(var(--brand-primary-light), var(--brand-primary-dark));
    --brand-on-primary: light-dark(var(--brand-on-primary-light), var(--brand-on-primary-dark));
    --success-bg: light-dark(var(--success-bg-light), var(--success-bg-dark));
    --success-border: light-dark(var(--success-border-light), var(--success-border-dark));
    --success-text: light-dark(var(--success-text-light), var(--success-text-dark));
    --danger-bg: light-dark(var(--danger-bg-light), var(--danger-bg-dark));
    --danger-border: light-dark(var(--danger-border-light), var(--danger-border-dark));
    --danger-text: light-dark(var(--danger-text-light), var(--danger-text-dark));
  }

  accent-color: var(--brand-primary);
}

/* Forced Colors Mode Support (Windows High Contrast) */
@media (forced-colors: active) {
  .choice-option,
  .card,
  .metric-pill,
  .nav-tab {
    border: 1px solid CanvasText;
  }
  .choice-option.selected {
    outline: 3px solid Highlight;
  }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

[hidden] {
  display: none !important;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  line-height: 1.55;
  padding-bottom: calc(140px + env(safe-area-inset-bottom, 0px));
  min-height: 100dvh;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

/* Header & Live Session Banner */
.app-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  padding-top: env(safe-area-inset-top, 0px);
}

.header-inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 6px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.brand-badge {
  background-color: var(--brand-primary);
  color: var(--brand-on-primary);
  font-weight: 800;
  font-size: 0.72rem;
  padding: 4px 6px;
  border-radius: 6px;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

.app-title {
  font-size: 0.96rem;
  font-weight: 700;
  line-height: 1.15;
}

.app-subtitle {
  font-size: 0.7rem;
  color: var(--text-secondary);
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.session-banner {
  max-width: 760px;
  margin: 0 auto;
  padding: 5px 12px;
  background-color: var(--bg-elevated);
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.session-meta {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.8rem;
  font-weight: 600;
  min-width: 0;
  flex: 1;
}

.session-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.btn-rename-inline {
  background-color: var(--bg-surface);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 2px 6px;
  font-size: 0.75rem;
  line-height: 1;
  min-block-size: 24px;
  min-inline-size: 24px;
  cursor: pointer;
  flex-shrink: 0;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--text-secondary);
  flex-shrink: 0;
}

.status-dot.active {
  background-color: var(--success-border);
}

.session-metrics {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: nowrap;
  flex-shrink: 0;
}

.metric-pill {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 2px 6px;
  font-size: 0.74rem;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  white-space: nowrap;
}

.metric-label {
  color: var(--text-secondary);
}

.btn-close-session {
  background-color: var(--danger-bg);
  color: var(--danger-text);
  border: 1px solid var(--danger-border);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.74rem;
  font-weight: 700;
  cursor: pointer;
  min-block-size: 24px;
  min-inline-size: 36px;
  white-space: nowrap;
  flex-shrink: 0;
}

/* Main Content Layout */
.app-main {
  max-width: 760px;
  margin: 0 auto;
  padding: 14px 12px;
}

.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 14px;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.card-desc,
.card-sub {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.quick-modes {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Question Card */
.question-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.badge-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.q-number-badge {
  background-color: var(--brand-primary);
  color: var(--brand-on-primary);
  font-weight: 700;
  font-size: 0.8rem;
  padding: 3px 9px;
  border-radius: 6px;
}

.multi-select-badge {
  background-color: var(--success-bg);
  color: var(--success-text);
  border: 1px solid var(--success-border);
  font-weight: 700;
  font-size: 0.78rem;
  padding: 3px 9px;
  border-radius: 6px;
}

.topic-badge,
.weight-badge,
.timer-pill {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.76rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 6px;
}

.q-utility-btns {
  display: flex;
  align-items: center;
  gap: 8px;
}

.bookmark-btn {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  width: 38px;
  height: 38px;
  font-size: 1.15rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}

.bookmark-btn[aria-pressed="true"] {
  color: #f59e0b;
  border-color: #f59e0b;
}

.question-history-strip {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.question-stem {
  font-size: 1.02rem;
  line-height: 1.6;
  white-space: pre-line;
  margin-bottom: 16px;
  font-weight: 500;
}

.question-images,
.answer-images {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 14px;
}

.exam-diagram-img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background-color: #ffffff;
  padding: 4px;
}

/* Choices Touch Cards */
.choices-fieldset {
  border: none;
  margin-bottom: 12px;
}

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

.choice-option {
  width: 100%;
  text-align: left;
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border: 2px solid var(--border-color);
  border-radius: 12px;
  padding: 13px 14px;
  min-height: 54px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  font-size: 0.96rem;
  line-height: 1.48;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.choice-option:hover:not(:disabled) {
  border-color: var(--brand-primary);
}

.choice-option.selected {
  border-color: var(--brand-primary);
  background-color: var(--bg-elevated);
}

.choice-option.correct-choice {
  border-color: var(--success-border);
  background-color: var(--success-bg);
}

.choice-option.wrong-choice {
  border-color: var(--danger-border);
  background-color: var(--danger-bg);
}

.choice-letter {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 7px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-elevated);
  font-weight: 700;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.choice-option.selected .choice-letter {
  background-color: var(--brand-primary);
  color: var(--brand-on-primary);
  border-color: var(--brand-primary);
}

.choice-option.correct-choice .choice-letter {
  background-color: var(--success-border);
  color: #ffffff;
}

.choice-option.wrong-choice .choice-letter {
  background-color: var(--danger-border);
  color: #ffffff;
}

.choice-body {
  flex: 1;
  word-break: break-word;
}

.choice-status-tag {
  font-size: 0.76rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 6px;
  align-self: center;
  flex-shrink: 0;
}

/* Feedback Section */
.feedback-section {
  margin-top: 18px;
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.feedback-section[hidden],
.ai-tutor-reply[hidden] {
  display: none !important;
}

.feedback-banner {
  border-radius: 12px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  border: 2px solid var(--border-color);
}

.feedback-banner.is-correct {
  background-color: var(--success-bg);
  border-color: var(--success-border);
  color: var(--success-text);
}

.feedback-banner.is-wrong {
  background-color: var(--danger-bg);
  border-color: var(--danger-border);
  color: var(--danger-text);
}

.feedback-icon {
  font-size: 1.5rem;
}

.feedback-heading {
  font-size: 1.02rem;
  font-weight: 700;
}

.feedback-sub {
  font-size: 0.84rem;
}

/* Gemini AI Box */
.ai-explanation-box {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 14px;
}

.ai-box-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
}

.ai-title-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.95rem;
  font-weight: 700;
}

.ai-summary-content {
  font-size: 0.92rem;
  line-height: 1.58;
  margin-bottom: 12px;
}

.tutor-input-row {
  display: flex;
  gap: 8px;
}

.ai-tutor-reply {
  margin-top: 10px;
  padding: 12px 14px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  font-size: 0.9rem;
  line-height: 1.56;
}

/* Safe Markdown Rendered Elements */
.md-heading {
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 12px 0 6px;
}

.md-heading:first-child {
  margin-top: 0;
}

.md-p {
  margin: 0 0 8px;
}

.md-p:last-child {
  margin-bottom: 0;
}

.md-list {
  margin: 4px 0 10px;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.md-code-block {
  background-color: var(--bg-canvas);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px;
  overflow-x: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.82rem;
  margin: 8px 0;
}

.md-inline-code {
  background-color: var(--bg-canvas);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 1px 5px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.84em;
}

.md-hr {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 10px 0;
}

/* Community Details & Notes */
.community-details,
.notes-details {
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 10px 14px;
  background-color: var(--bg-surface);
}

.details-summary {
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 4px 0;
}

.vote-pills {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.vote-pill {
  font-size: 0.74rem;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-color);
  padding: 2px 7px;
  border-radius: 99px;
}

.recorded-explanation {
  margin-top: 10px;
  padding: 10px 12px;
  background-color: var(--bg-elevated);
  border-radius: 8px;
  font-size: 0.9rem;
  white-space: pre-line;
}

.discussions-list {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.discussion-item {
  border-top: 1px solid var(--border-color);
  padding-top: 10px;
  font-size: 0.86rem;
}

.discussion-meta {
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 4px;
  font-size: 0.78rem;
}

.discussion-body {
  white-space: pre-line;
}

/* Buttons & Inputs */
.primary-btn,
.secondary-btn,
.small-outline-btn,
.icon-btn {
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.92rem;
  padding: 10px 16px;
  min-height: 44px;
  cursor: pointer;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.primary-btn {
  background-color: var(--brand-primary);
  color: var(--brand-on-primary);
}

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

.secondary-btn {
  background-color: var(--bg-elevated);
  color: var(--text-primary);
  border-color: var(--border-color);
}

.small-outline-btn {
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border-color: var(--border-color);
  min-height: 34px;
  padding: 5px 10px;
  font-size: 0.8rem;
}

.danger-outline-btn {
  background-color: var(--danger-bg);
  color: var(--danger-text);
  border-color: var(--danger-border);
}

.session-actions-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.icon-btn {
  background-color: var(--bg-elevated);
  color: var(--text-primary);
  border-color: var(--border-color);
  min-height: 32px;
  padding: 4px 10px;
  font-size: 0.78rem;
  border-radius: 8px;
}

.full-width {
  width: 100%;
}

.text-input,
.select-input,
.textarea-input {
  width: 100%;
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 0.94rem;
  min-height: 44px;
}

.notes-box {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.notes-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.save-note-status {
  font-size: 0.8rem;
  color: var(--success-text);
}

/* KPI Grid & Lists */
.section-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.kpi-card {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.kpi-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.kpi-val {
  font-size: 1.25rem;
  font-weight: 800;
}

.sessions-list,
.topics-list,
.bank-items-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.session-row-card,
.topic-row-card,
.bank-row-card {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.row-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.row-title {
  font-weight: 700;
  font-size: 0.95rem;
}

.row-sub {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.filter-bar {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 10px;
}

.filter-selects {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.bank-count-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

/* Theme Radio Cards */
.theme-fieldset {
  border: none;
}

.theme-options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 10px;
}

.theme-radio-card {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
}

.theme-radio-title {
  font-weight: 700;
  font-size: 0.92rem;
}

.theme-radio-sub {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.info-list {
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.9rem;
}

/* Sticky Action Dock & Mobile Bottom Navigation */
.practice-action-dock {
  position: fixed;
  bottom: calc(60px + env(safe-area-inset-bottom, 0px));
  left: 0;
  right: 0;
  z-index: 25;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 8px 12px;
}

.dock-inner {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  gap: 10px;
}

.dock-main-btn {
  flex: 1;
}

.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 30;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.nav-tab {
  background: none;
  border: none;
  color: var(--text-secondary);
  padding: 8px 4px;
  min-height: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 600;
}

.nav-tab.active {
  color: var(--brand-primary);
}

.nav-icon {
  font-size: 1.2rem;
}

/* Native <dialog> Modals & Backdrop */
dialog {
  margin: auto;
  width: min(92vw, 460px);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 0;
}

dialog::backdrop {
  background-color: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(2px);
}

.dialog-form {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

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

.dialog-header h2 {
  font-size: 1.08rem;
}

.dialog-close-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.1rem;
  width: 36px;
  height: 36px;
  cursor: pointer;
  border-radius: 8px;
}

.dialog-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 65dvh;
  overflow-y: auto;
}

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

.field-label {
  font-size: 0.85rem;
  font-weight: 600;
}

.dialog-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

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

/* Keypad Passcode Authentication Overlay */
.auth-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background-color: var(--bg-canvas);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.auth-card {
  width: min(100%, 360px);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 22px;
  padding: 28px 22px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}

.auth-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 4px;
}

.auth-lock-badge {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-color);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.45rem;
  margin-bottom: 4px;
}

.auth-title {
  font-size: 1.25rem;
  font-weight: 800;
}

.auth-subtitle {
  font-size: 0.84rem;
  color: var(--text-secondary);
}

.pin-dots {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin: 4px 0;
}

.pin-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--border-color);
  background-color: transparent;
  transition: background-color 0.12s ease, border-color 0.12s ease, transform 0.12s ease;
}

.pin-dot.filled {
  background-color: var(--brand-primary);
  border-color: var(--brand-primary);
  transform: scale(1.1);
}

.pin-dots.is-error .pin-dot {
  border-color: var(--danger-border);
  background-color: var(--danger-bg);
}

.auth-status-msg {
  min-height: 22px;
  font-size: 0.85rem;
  font-weight: 600;
  text-align: center;
  color: var(--text-secondary);
  padding: 0 6px;
}

.auth-status-msg.is-error {
  color: var(--danger-text);
}

.auth-status-msg.is-locked {
  width: 100%;
  background-color: var(--danger-bg);
  border: 1px solid var(--danger-border);
  color: var(--danger-text);
  border-radius: 10px;
  padding: 10px 12px;
}

.keypad-grid {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 4px;
}

.keypad-btn {
  background-color: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  font-size: 1.38rem;
  font-weight: 700;
  min-block-size: 60px;
  min-inline-size: 60px;
  padding: 10px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  transition: background-color 0.1s ease, border-color 0.1s ease, transform 0.08s ease;
}

.keypad-btn:hover:not(:disabled) {
  border-color: var(--brand-primary);
}

.keypad-btn:active:not(:disabled) {
  transform: scale(0.96);
  background-color: var(--brand-primary);
  color: var(--brand-on-primary);
}

.keypad-btn:disabled {
  opacity: 0.38;
  cursor: not-allowed;
}

.keypad-action-btn {
  font-size: 1.05rem;
  color: var(--text-secondary);
}

:where(a:any-link, button):focus-visible {
  outline: 3px solid var(--brand-primary);
  outline-offset: 3px;
}

@media (pointer: coarse) {
  .keypad-btn {
    min-block-size: 66px;
  }
}

@media (max-width: 480px) {
  .filter-selects {
    grid-template-columns: 1fr;
  }
}