/* ==========================================================================
   1. ROOT THEME & COLOR-SCHEME TOKENS (Compliant with modern-web-guidance: dark-mode)
   ========================================================================== */
:root {
  --bg-canvas-light: #f4f6fb;
  --bg-canvas-dark: #090d16;
  --bg-panel-light: #ffffff;
  --bg-panel-dark: #111827;
  --bg-elevated-light: #eef2f9;
  --bg-elevated-dark: #1e293b;
  --text-primary-light: #0f172a;
  --text-primary-dark: #f1f5f9;
  --text-muted-light: #475569;
  --text-muted-dark: #94a3b8;
  --border-subtle-light: #cbd5e1;
  --border-subtle-dark: #263248;

  --brand-accent-light: #b91c1c;
  --brand-accent-dark: #f87171;
  --danger-bg-light: #fee2e2;
  --danger-bg-dark: #3f151b;
  --danger-text-light: #991b1b;
  --danger-text-dark: #fca5a5;

  --warn-bg-light: #fef3c7;
  --warn-bg-dark: #3b2a10;
  --warn-text-light: #92400e;
  --warn-text-dark: #fcd34d;

  --ok-bg-light: #dcfce7;
  --ok-bg-dark: #0f3322;
  --ok-text-light: #166534;
  --ok-text-dark: #86efac;

  --scrollbar-thumb-light: #94a3b8;
  --scrollbar-thumb-dark: #475569;
  --scrollbar-track-light: #e2e8f0;
  --scrollbar-track-dark: #0f172a;

  --bg-canvas: var(--bg-canvas-light);
  --bg-panel: var(--bg-panel-light);
  --bg-elevated: var(--bg-elevated-light);
  --text-primary: var(--text-primary-light);
  --text-muted: var(--text-muted-light);
  --border-subtle: var(--border-subtle-light);
  --accent-color: var(--brand-accent-light);
  --danger-bg: var(--danger-bg-light);
  --danger-text: var(--danger-text-light);
  --warn-bg: var(--warn-bg-light);
  --warn-text: var(--warn-text-light);
  --ok-bg: var(--ok-bg-light);
  --ok-text: var(--ok-text-light);
  --scrollbar-thumb: var(--scrollbar-thumb-light);
  --scrollbar-track: var(--scrollbar-track-light);

  /* MANDATORY Fallback for browsers without light-dark() support */
  @media (prefers-color-scheme: dark) {
    --bg-canvas: var(--bg-canvas-dark);
    --bg-panel: var(--bg-panel-dark);
    --bg-elevated: var(--bg-elevated-dark);
    --text-primary: var(--text-primary-dark);
    --text-muted: var(--text-muted-dark);
    --border-subtle: var(--border-subtle-dark);
    --accent-color: var(--brand-accent-dark);
    --danger-bg: var(--danger-bg-dark);
    --danger-text: var(--danger-text-dark);
    --warn-bg: var(--warn-bg-dark);
    --warn-text: var(--warn-text-dark);
    --ok-bg: var(--ok-bg-dark);
    --ok-text: var(--ok-text-dark);
    --scrollbar-thumb: var(--scrollbar-thumb-dark);
    --scrollbar-track: var(--scrollbar-track-dark);
  }

  /* Progressive enhancement with light-dark() */
  @supports (color: light-dark(white, black)) {
    --bg-canvas: light-dark(var(--bg-canvas-light), var(--bg-canvas-dark));
    --bg-panel: light-dark(var(--bg-panel-light), var(--bg-panel-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-muted: light-dark(var(--text-muted-light), var(--text-muted-dark));
    --border-subtle: light-dark(var(--border-subtle-light), var(--border-subtle-dark));
    --accent-color: light-dark(var(--brand-accent-light), var(--brand-accent-dark));
    --danger-bg: light-dark(var(--danger-bg-light), var(--danger-bg-dark));
    --danger-text: light-dark(var(--danger-text-light), var(--danger-text-dark));
    --warn-bg: light-dark(var(--warn-bg-light), var(--warn-bg-dark));
    --warn-text: light-dark(var(--warn-text-light), var(--warn-text-dark));
    --ok-bg: light-dark(var(--ok-bg-light), var(--ok-bg-dark));
    --ok-text: light-dark(var(--ok-text-light), var(--ok-text-dark));
    --scrollbar-thumb: light-dark(var(--scrollbar-thumb-light), var(--scrollbar-thumb-dark));
    --scrollbar-track: light-dark(var(--scrollbar-track-light), var(--scrollbar-track-dark));
  }

  /* MANDATORY: Apply color-scheme to :root for viewport-wide theming */
  color-scheme: light dark;
  accent-color: var(--accent-color);
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

/* Legacy fallback for WebKit/Blink browsers without scrollbar-color */
@supports not (scrollbar-color: auto) {
  *::-webkit-scrollbar {
    width: 10px;
    height: 10px;
  }
  *::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
  }
  *::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang TC", "Microsoft JhengHei", sans-serif;
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  line-height: 1.48;
  padding-block-end: 2.5rem;
}

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

/* ==========================================================================
   2. HEADER, CONTROLS & POLARITY LEGEND BANNER
   ========================================================================== */
.topbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background-color: var(--bg-panel);
  border-block-end: 1px solid var(--border-subtle);
}

.brand-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 0.15rem 0.55rem;
  border-radius: 4px;
  background-color: var(--danger-bg);
  color: var(--danger-text);
  margin-block-end: 0.25rem;
}

.topbar h1 {
  margin: 0;
  font-size: 1.25rem;
}

.subtitle {
  margin: 0.2rem 0 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.controls-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.inline-form {
  display: flex;
  gap: 0.35rem;
}

.polarity-banner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 460px), 1fr));
  gap: 0.75rem;
  padding: 0.75rem 1.5rem 0;
}

.polarity-item {
  padding: 0.55rem 0.85rem;
  border-radius: 8px;
  font-size: 0.79rem;
  border: 1px solid var(--border-subtle);
}

.polarity-item.bear-favorable {
  background-color: var(--danger-bg);
  color: var(--danger-text);
}

.polarity-item.squeeze-danger {
  background-color: var(--warn-bg);
  color: var(--warn-text);
}

input[type="text"],
input[type="number"] {
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  background-color: var(--bg-elevated);
  color: var(--text-primary);
  font-size: 0.85rem;
}

.btn {
  padding: 0.45rem 0.85rem;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
  font-size: 0.83rem;
  font-weight: 600;
  cursor: pointer;
  background-color: var(--bg-elevated);
  color: var(--text-primary);
}

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

.btn.accent {
  background-color: var(--accent-color);
  color: #ffffff;
  border-color: transparent;
}

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

/* ==========================================================================
   3. DASHBOARD GRID & KPI CARDS
   ========================================================================== */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 540px), 1fr));
  gap: 1.25rem;
  padding: 1rem 1.5rem;
}

.span-full {
  grid-column: 1 / -1;
}

.panel {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 1.15rem;
}

.panel-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
  margin-block-end: 1rem;
}

.panel-header h2 {
  margin: 0;
  font-size: 1.05rem;
}

.panel-desc {
  margin: 0.25rem 0 0.75rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.meta-tag {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.9rem;
  margin-block-end: 1.1rem;
}

.kpi-card {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.kpi-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-primary);
}

.kpi-polarity {
  font-size: 0.71rem;
  font-weight: 600;
}

.kpi-polarity.bear-tag {
  color: var(--danger-text);
}

.kpi-polarity.warn-tag {
  color: var(--warn-text);
}

.kpi-value-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  margin-block: 0.25rem;
}

.kpi-number {
  font-size: 1.65rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.kpi-note {
  margin: 0;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.status-pill {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 700;
}

.pill-danger {
  background-color: var(--danger-bg);
  color: var(--danger-text);
}

.pill-warn {
  background-color: var(--warn-bg);
  color: var(--warn-text);
}

.pill-ok {
  background-color: var(--ok-bg);
  color: var(--ok-text);
}

.split-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 480px), 1fr));
  gap: 1rem;
}

/* ==========================================================================
   4. RESPONSIVE TABLES (Compliant with modern-web-guidance: responsive-table)
   ========================================================================== */
.table-wrapper {
  overflow: auto;
  max-inline-size: 100%;
  max-block-size: min(560px, 78vh);
  container-type: inline-size;
  scrollbar-gutter: stable;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
}

table {
  inline-size: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.82rem;
}

caption {
  text-align: start;
  padding: 0.55rem 0.85rem;
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--text-muted);
  background-color: var(--bg-elevated);
  border-block-end: 1px solid var(--border-subtle);
}

thead {
  position: sticky;
  inset-block-start: 0;
  z-index: 2;
}

thead th {
  background-color: var(--bg-elevated);
  color: var(--text-muted);
  font-weight: 600;
  text-align: start;
  padding: 0.55rem 0.7rem;
  border-block-end: 1px solid var(--border-subtle);
  white-space: nowrap;
}

tbody tr {
  cursor: pointer;
}

tbody tr:hover td,
tbody tr:hover th {
  background-color: var(--bg-elevated);
}

tbody th {
  position: sticky;
  inset-inline-start: 0;
  z-index: 1;
  background-color: var(--bg-panel);
  text-align: start;
  padding: 0.55rem 0.7rem;
  border-block-end: 1px solid var(--border-subtle);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

tbody td {
  padding: 0.55rem 0.7rem;
  border-block-end: 1px solid var(--border-subtle);
  vertical-align: middle;
}

@container (width < 600px) {
  table,
  thead,
  tbody,
  tr,
  th,
  td {
    display: block;
  }

  thead {
    /* MANDATORY: Hide column header from layout and screen readers */
    display: none;
  }

  tr {
    margin-block-end: 1rem;
    border: 1px solid var(--border-subtle);
  }

  tbody th {
    position: sticky;
    inset-block-start: 0;
    z-index: 2;
    background-color: var(--bg-elevated);
  }

  .screener-table {
    --label-2: "空方總分 / 評級 (↑利空)";
    --label-3: "進退場狀態 (FSM)";
    --label-4: "做空安全分類";
    --label-5: "現價 / ATR14";
    --label-6: "A: 趨勢破位 (↑利空)";
    --label-7: "B: 相對弱勢 (↑利空)";
    --label-8: "C: 籌碼派發 (↑利空)";
    --label-9: "D: 基本面脆弱 (↑利空)";
    --label-10: "E: 軋空風險 (⚠️↑危險)";
    --label-11: "進場 / 停損 / 目標1";
    --label-12: "風報比 & 建議股數";
    --label-13: "完整決策卡";
  }

  .screener-table td:nth-child(2)::before { content: var(--label-2) ": "; font-weight: 600; }
  .screener-table td:nth-child(3)::before { content: var(--label-3) ": "; font-weight: 600; }
  .screener-table td:nth-child(4)::before { content: var(--label-4) ": "; font-weight: 600; }
  .screener-table td:nth-child(5)::before { content: var(--label-5) ": "; font-weight: 600; }
  .screener-table td:nth-child(6)::before { content: var(--label-6) ": "; font-weight: 600; }
  .screener-table td:nth-child(7)::before { content: var(--label-7) ": "; font-weight: 600; }
  .screener-table td:nth-child(8)::before { content: var(--label-8) ": "; font-weight: 600; }
  .screener-table td:nth-child(9)::before { content: var(--label-9) ": "; font-weight: 600; }
  .screener-table td:nth-child(10)::before { content: var(--label-10) ": "; font-weight: 600; }
  .screener-table td:nth-child(11)::before { content: var(--label-11) ": "; font-weight: 600; }
  .screener-table td:nth-child(12)::before { content: var(--label-12) ": "; font-weight: 600; }
  .screener-table td:nth-child(13)::before { content: var(--label-13) ": "; font-weight: 600; }
}

/* ==========================================================================
   5. ALERTS & WARNINGS
   ========================================================================== */
.warnings-list {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-block-end: 0.85rem;
}

.warning-banner {
  padding: 0.55rem 0.8rem;
  border-radius: 6px;
  font-size: 0.81rem;
  background-color: var(--warn-bg);
  color: var(--warn-text);
  border-inline-start: 4px solid var(--accent-color);
}

.alerts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 0.85rem;
}

.alert-card {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 0.85rem;
}

.alert-card.priority-CRITICAL {
  border-inline-start: 4px solid #ef4444;
}

.alert-card.priority-HIGH {
  border-inline-start: 4px solid #f97316;
}

.alert-card.priority-MEDIUM {
  border-inline-start: 4px solid #eab308;
}

.alert-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-block-end: 0.35rem;
}

.alert-title {
  font-weight: 700;
  font-size: 0.86rem;
  margin: 0.25rem 0;
}

.alert-msg {
  font-size: 0.79rem;
  color: var(--text-muted);
  margin: 0;
}

/* ==========================================================================
   6. DIALOG MODALS (Compliant with modern-web-guidance: light-dismiss-a-dialog)
   ========================================================================== */
dialog {
  inline-size: min(840px, 92vw);
  max-block-size: 86vh;
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 0;
  background-color: var(--bg-panel);
  color: var(--text-primary);
}

dialog::backdrop {
  background-color: rgba(0, 0, 0, 0.58);
  backdrop-filter: blur(2px);
}

.dialog-inner {
  padding: 1.25rem;
}

.dialog-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-block-end: 0.85rem;
}

.dialog-header h2 {
  margin: 0;
  font-size: 1.05rem;
}

.decision-pre {
  color-scheme: dark;
  accent-color: var(--accent-color);
  background-color: #0b1120;
  color: #e2e8f0;
  padding: 1rem;
  border-radius: 8px;
  overflow-x: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.82rem;
  line-height: 1.55;
  white-space: pre-wrap;
}

.missing-fields-note {
  margin-block-start: 0.75rem;
  font-size: 0.79rem;
  color: var(--warn-text);
  background-color: var(--warn-bg);
  padding: 0.6rem 0.85rem;
  border-radius: 6px;
}

.override-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.85rem;
}

.override-form label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.8rem;
  font-weight: 600;
}

.form-actions {
  grid-column: 1 / -1;
  display: flex;
  justify-content: flex-end;
  margin-block-start: 0.5rem;
}