/* Decibel (dB) profile — drop-in theme for report/document pages.
 *
 * Load order in <head>:
 *   1. the document's own styles
 *   2. ../decibel/fonts.css   (self-hosted Stack Sans Text + Geist Mono)
 *   3. ../decibel/tokens.css  (optional — every var below has a literal fallback)
 *   4. this file              (must come last to win the cascade)
 *
 * Dark mode follows decibel: `.dark` on <html>, or the document's own
 * `[data-theme="dark"]`, or the OS preference when neither is set.
 */

/* ---------- token mapping (light) ---------- */
:root {
  --page:        var(--db-background, #FFFFFF);
  --surface:     var(--db-card, #FFFFFF);
  --surface-2:   var(--db-muted, #F4F5F7);
  --ink:         var(--db-foreground, #162235);
  --ink-2:       var(--db-muted-foreground, #606A79);
  --muted:       var(--db-muted-foreground, #606A79);
  --grid:        var(--db-border, #E3E6EB);
  --baseline:    var(--db-border, #E3E6EB);
  --border:      var(--db-border, #E3E6EB);
  --dkls:        var(--db-chart-2, #05357E);
  --dkls-soft:   var(--db-chart-3, #4070BF);
  --dkls-softer: var(--db-secondary, #EBF0F9);
  --dkls-deep:   var(--db-chart-1, #001760);
  --cggmp:       var(--db-muted-foreground, #606A79);
  --cggmp-soft:  #A7AEBB;
  --cggmp-deep:  #3E4349;
  --good:        #1A7F4B;

  --db-card-shadow: 0 1px 2px rgba(10, 26, 49, 0.06);
}

/* ---------- token mapping (dark) ---------- */
.dark,
:root[data-theme="dark"] {
  --page:        var(--db-background, #080B11);
  --surface:     var(--db-card, #0C1015);
  --surface-2:   var(--db-muted, #1F2226);
  --ink:         var(--db-foreground, #F8F8F8);
  --ink-2:       var(--db-muted-foreground, #A7AEBB);
  --muted:       var(--db-muted-foreground, #A7AEBB);
  --grid:        var(--db-border, #292B30);
  --baseline:    var(--db-border, #292B30);
  --border:      var(--db-border, #292B30);
  --dkls:        #7BAEFF;
  --dkls-soft:   #4070BF;
  --dkls-softer: #1E3A5F;
  --dkls-deep:   #A9DFFF;
  --cggmp:       #A7AEBB;
  --cggmp-soft:  #606A79;
  --cggmp-deep:  #C7CDD6;
  --good:        #4CC38A;

  --db-card-shadow: none;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not(.dark) {
    --page:        #080B11;
    --surface:     #0C1015;
    --surface-2:   #1F2226;
    --ink:         #F8F8F8;
    --ink-2:       #A7AEBB;
    --muted:       #A7AEBB;
    --grid:        #292B30;
    --baseline:    #292B30;
    --border:      #292B30;
    --dkls:        #7BAEFF;
    --dkls-soft:   #4070BF;
    --dkls-softer: #1E3A5F;
    --dkls-deep:   #A9DFFF;
    --cggmp:       #A7AEBB;
    --cggmp-soft:  #606A79;
    --cggmp-deep:  #C7CDD6;
    --good:        #4CC38A;
    --db-card-shadow: none;
  }
}

/* ---------- base type ---------- */
body { font-family: var(--db-font-sans, "Stack Sans Text", system-ui, sans-serif); }
h1, h2, h3, .chart-title { font-family: var(--db-font-heading, "Stack Sans Text", system-ui, sans-serif); }
.mono, code, kbd, pre { font-family: var(--db-font-mono, "Geist Mono", ui-monospace, monospace); }
a { color: var(--db-primary, #184691); }
h1 { font-weight: 600; letter-spacing: -0.025em; line-height: 1; }
h2 { font-weight: 600; letter-spacing: -0.02em; line-height: 1.1; }
h3 { font-weight: 600; letter-spacing: -0.6px; }

/* ---------- product nav bar (dark band, white wordmark) ---------- */
.brandbar {
  position: sticky; top: 0; z-index: 60;
  display: flex; align-items: center; justify-content: space-between;
  height: 64px; padding: 0 clamp(16px, 4vw, 24px);
  background: #162235;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.brandbar img { height: 26px; width: auto; display: block; }
.brandbar-cta {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--db-primary, #184691); color: var(--db-primary-foreground, #fff);
  font-size: 14px; font-weight: 500; line-height: 1;
  padding: 10px 16px; border-radius: var(--db-radius-md, 0);
  text-decoration: none;
  transition: background 120ms cubic-bezier(0.4, 0, 0.2, 1);
}
.brandbar-cta:hover { background: color-mix(in srgb, var(--db-primary, #184691) 90%, #000 10%); }

/* ---------- side toc ---------- */
nav.toc { top: 64px; height: calc(100vh - 64px); width: 210px; padding: 40px 20px 40px 0; border-right: 1px solid var(--border); }
nav.toc .brand { font-family: var(--db-font-sans, "Stack Sans Text", sans-serif); font-size: 12px; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
nav.toc a { font-family: var(--db-font-sans, "Stack Sans Text", sans-serif); font-size: 14px; color: var(--ink-2); border-radius: var(--db-radius-xl, 4px); padding: 6px 10px; border-left: none; }
nav.toc a:hover { color: var(--ink); background: var(--surface-2); }
nav.toc .toc-group { font-family: var(--db-font-sans, sans-serif); font-size: 12px; font-weight: 500; letter-spacing: 0.06em; color: var(--muted); }

main { padding: 32px clamp(16px, 4vw, 24px) 96px; }

/* ---------- hero card ---------- */
header.hero {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--db-radius-xl, 4px);
  box-shadow: var(--db-card-shadow);
  padding: 40px clamp(20px, 4vw, 40px) 36px;
  margin: 0 0 8px;
}
header.hero .eyebrow { margin: 0 0 16px; font-size: 12px; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
header.hero h1 { color: var(--ink); font-size: clamp(3rem, 2.4rem + 1.4vw, 3.75rem); }
header.hero p { color: var(--ink-2); }
header.hero p strong { color: var(--ink); }
header.hero .kpi-row { margin-top: 28px; }
header.hero .kpi { background: var(--surface-2); border-color: var(--border); }

.kpi-row { gap: 16px; }
.kpi { background: var(--surface); border: 1px solid var(--border); border-radius: var(--db-radius-xl, 4px); box-shadow: var(--db-card-shadow); padding: 20px 22px; }
.kpi .val { font-family: var(--db-font-heading, "Stack Sans Text", sans-serif); font-size: var(--db-text-heading-md, 36px); line-height: var(--db-leading-heading-md, 40px); letter-spacing: var(--db-tracking-heading-md, -0.9px); font-weight: 600; }
.kpi .label { font-size: 14px; line-height: 1.5; color: var(--ink-2); }

/* ---------- sections ---------- */
section { margin: 96px 0; }
.section-num { font-family: var(--db-font-sans, sans-serif); font-size: 12px; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.section-head { gap: 12px; margin-bottom: 10px; }
.group-divider { font-family: var(--db-font-sans, sans-serif); font-size: 12px; font-weight: 500; letter-spacing: 0.06em; color: var(--muted); margin-top: 96px; }
.group-divider::after { background: var(--border); }

/* ---------- cards / charts ---------- */
.panel { border: 1px solid var(--border); border-radius: var(--db-radius-xl, 4px); box-shadow: var(--db-card-shadow); padding: 24px clamp(16px, 2vw, 28px) 20px; }
.chart-title { font-size: 16px; font-weight: 600; color: var(--ink); }
.chart-sub { font-size: 13px; color: var(--muted); }
.legend { font-size: 14px; color: var(--ink-2); }
.legend .sw { border-radius: var(--db-radius-xs, 2px); }
svg text { font-family: var(--db-font-sans, "Stack Sans Text", sans-serif); fill: var(--muted); }
svg .axis-label { fill: var(--muted); }
svg .grid-line { stroke: var(--grid); }
svg .baseline { stroke: var(--baseline); }
svg .value-label { fill: var(--ink); }

/* ---------- tables (decibel: no header fill, no uppercase) ---------- */
.table-wrap { border: 1px solid var(--border); border-radius: var(--db-radius-xl, 4px); }
table { font-size: 14px; }
thead th {
  background: var(--surface); color: var(--muted);
  font-family: var(--db-font-sans, "Stack Sans Text", sans-serif);
  font-size: 13px; font-weight: 500; letter-spacing: 0; text-transform: none;
  border-bottom: 1px solid var(--border);
}
tbody td { border-bottom: 1px solid var(--border); }
tbody tr:hover td { background: var(--surface-2); }
tbody tr.group-start td { border-top: 1px solid var(--border); }
.tag-dkls { color: var(--dkls); }
.tag-cggmp { color: var(--cggmp); }
.pill-good { color: var(--good); }

/* ---------- callouts / method ---------- */
.callout { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--db-radius-xl, 4px); font-size: 14px; color: var(--ink-2); }
.callout strong { color: var(--ink); }
.callout.warn { background: var(--db-secondary, #EBF0F9); border-color: transparent; color: var(--db-secondary-foreground, #0D2141); }
.callout.warn strong { color: var(--db-secondary-foreground, #0D2141); }
.dark .callout.warn, :root[data-theme="dark"] .callout.warn { background: var(--db-secondary, #2F5EAB); color: var(--db-secondary-foreground, #A9DFFF); }
.dark .callout.warn strong, :root[data-theme="dark"] .callout.warn strong { color: var(--db-secondary-foreground, #A9DFFF); }
dl.method dt { font-family: var(--db-font-sans, sans-serif); font-size: 12px; font-weight: 500; letter-spacing: 0.06em; color: var(--muted); }
dl.method dd { color: var(--ink-2); font-size: 14px; }

/* ---------- closing cta ---------- */
.sl-cta { background: var(--db-primary, #184691); border-radius: var(--db-radius-2xl, 16px); padding: 56px clamp(24px, 4vw, 48px); margin: 96px 0 0; }
.sl-eyebrow { margin: 0 0 16px; font-size: 12px; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: rgba(255, 255, 255, 0.64); }
.sl-cta h2 { color: #fff; font-size: clamp(2.25rem, 1.8rem + 1.2vw, 3rem); max-width: 24ch; margin: 0 0 28px; }
.sl-cta-btn { display: inline-flex; align-items: center; min-height: 40px; padding: 0 24px; background: var(--db-primary-foreground, #fff); color: var(--db-primary, #184691); font-size: 14px; font-weight: 500; line-height: 1; text-decoration: none; border-radius: var(--db-radius-md, 0); transition: background 120ms cubic-bezier(0.4, 0, 0.2, 1); }
.sl-cta-btn:hover { background: var(--db-accent, #F2F3F6); }
.sl-copyright { margin: 28px 0 0; text-align: center; font-size: 13px; color: var(--muted); }

@media print {
  .brandbar, .sl-cta { display: none; }
  header.hero { box-shadow: none; }
  thead th { background: none; }
  .panel, .kpi, .table-wrap { box-shadow: none; }
}
@media (max-width: 860px) {
  .brandbar { position: static; }
  nav.toc {
    top: 0; width: auto; height: auto; padding: 20px clamp(20px, 4vw, 56px) 0;
    border-right: none; flex-direction: row; overflow-x: auto; white-space: nowrap; gap: 4px;
  }
  section { margin: 64px 0; }
}
