/* ==========================================================================
   Theme: Opus 5.5 — "Bench Notes" visual language (FA-01 Round 2, file D)
   Loaded after style.css and preflight.css. It remaps the --td-* tokens and
   restyles shared components; page markup and content are unchanged.
   Inline styles in index.html win over normal rules, so overrides of inline
   values use !important on purpose.
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root,
.dark-theme {
  --bn-bg: #121A26;
  --bn-paper: #1A2433;
  --bn-paper-2: #202B3C;
  --bn-ink: #E6ECF3;
  --bn-ink-2: #C9D3DE;
  --bn-muted: #9AA8B8;
  --bn-line: #2C3A4D;
  --bn-bar: #6B7F99;
  --bn-mark: #E8BD3A;
  --bn-mark-ink: #121A26;
  --bn-win: #4FB8A6;
  --bn-grid: rgba(230, 236, 243, .05);

  --td-bg-base: var(--bn-bg);
  --td-bg-surface: var(--bn-bg);
  --td-bg-surface-elevated: var(--bn-paper-2);
  --td-bg-card: var(--bn-paper);
  --td-text-primary: var(--bn-ink);
  --td-text-secondary: var(--bn-ink-2);
  --td-text-muted: var(--bn-muted);
  --td-border: var(--bn-line);
  --td-border-subtle: var(--bn-line);
  --td-border-control: var(--bn-bar);
  --td-info: var(--bn-win);
  --td-info-bg: rgba(79, 184, 166, .12);
  --td-success: #6CC57A;
  --td-success-bg: rgba(108, 197, 122, .12);
  --td-warning: var(--bn-mark);
  --td-warning-bg: rgba(232, 189, 58, .12);
  --td-pending: #E8A04A;
  --td-pending-bg: rgba(232, 160, 74, .12);
  --td-ecosystem: var(--bn-mark);
  --td-ecosystem-bg: rgba(232, 189, 58, .12);
  --td-error: #F07A6E;
  --td-error-bg: rgba(240, 122, 110, .12);
  --td-ai: #A99BF0;
  --td-ai-bg: rgba(169, 155, 240, .12);
  --accent-color: var(--bn-mark);

  --bn-display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --bn-body: "Instrument Sans", "Helvetica Neue", Arial, sans-serif;
}

.light-theme {
  --bn-bg: #EEF1F4;
  --bn-paper: #FFFFFF;
  --bn-paper-2: #F6F8FA;
  --bn-ink: #1B2A41;
  --bn-ink-2: #33435A;
  --bn-muted: #5B6B7F;
  --bn-line: #D5DCE4;
  --bn-bar: #728499;
  --bn-mark: #F2C94C;
  --bn-mark-ink: #1B2A41;
  --bn-win: #1A7466;
  --bn-grid: rgba(27, 42, 65, .06);

  --td-bg-base: var(--bn-bg);
  --td-bg-surface: var(--bn-bg);
  --td-bg-surface-elevated: var(--bn-paper-2);
  --td-bg-card: var(--bn-paper);
  --td-text-primary: var(--bn-ink);
  --td-text-secondary: var(--bn-ink-2);
  --td-text-muted: var(--bn-muted);
  --td-border: var(--bn-line);
  --td-border-subtle: var(--bn-line);
  --td-border-control: var(--bn-bar);
  --td-info: var(--bn-win);
  --td-info-bg: #E3F1EE;
  --td-success: #2A7430;
  --td-success-bg: #E6F2E7;
  --td-warning: #836300;
  --td-warning-bg: #FBF1CF;
  --td-pending: #A9520C;
  --td-pending-bg: #FCEBDA;
  --td-ecosystem: #836300;
  --td-ecosystem-bg: #FBF1CF;
  --td-error: #C0392B;
  --td-error-bg: #FBE6E3;
  --td-ai: #5B45C2;
  --td-ai-bg: #ECE8FA;
  --accent-color: var(--bn-ink);
}

/* ---------- 2. Base ---------- */
body {
  font-family: var(--bn-body);
  font-size: 17px;
  line-height: 1.55;
  background-color: var(--bn-bg);
  background-image:
    linear-gradient(var(--bn-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--bn-grid) 1px, transparent 1px);
  background-size: 24px 24px;
}

h1, h2, h3, h4, h5,
.td-tab-label, .fa-title {
  font-family: var(--bn-display) !important;
  letter-spacing: -.01em;
}
h1 { font-weight: 800 !important; letter-spacing: -.025em; line-height: 1.04 !important; }
h2 { font-weight: 700 !important; letter-spacing: -.015em; }

:focus-visible,
button:focus-visible, a:focus-visible, input:focus-visible,
select:focus-visible, textarea:focus-visible {
  /* --accent-color is the highlighter in dark and ink in light; the yellow alone is 1.4:1 on the light ground */
  outline: 3px solid var(--accent-color) !important;
  outline-offset: 2px;
}
::selection { background: var(--bn-mark); color: var(--bn-mark-ink); }

/* Flat paper: no drop shadows, no gradient washes */
/* The top loading bar and the auth progress fill are gradients/glows that carry meaning; leave them alone.
   The page-header gradients are already cleared by the header rule in section 3. */
[style*="box-shadow"]:not(#appTopProgressBar) { box-shadow: none !important; }

/* ---------- 3. Page headers ---------- */
main.page > header,
.home-hero-header {
  background: transparent !important;
  border-bottom: 1px solid var(--bn-line) !important;
  text-align: left !important;
  padding: 3.5rem max(1.25rem, calc((100% - 1040px) / 2)) 2.25rem !important;
}
main.page > header > div:first-child { justify-content: flex-start !important; }
main.page > header h1 {
  color: var(--bn-ink) !important;
  font-size: clamp(2.2rem, 5.2vw, 3.75rem) !important;
  margin: 0 0 .9rem !important;
  max-width: 18ch;
}
main.page > header p {
  color: var(--bn-muted) !important;
  max-width: 52ch;
  font-size: 1.1rem !important;
}

.wdiii-logo-card,
.light-theme .wdiii-logo-card,
.fodder-logo-card,
.light-theme .fodder-logo-card {
  background: var(--bn-paper) !important;
  border: 1px solid var(--bn-line) !important;
  border-radius: 10px !important;
  box-shadow: none !important;
  color: var(--bn-ink) !important;
}
.wdiii-logo-card:hover,
.fodder-logo-card:hover { transform: none !important; box-shadow: none !important; border-color: var(--bn-ink) !important; }
.wdiii-card-divider, .light-theme .wdiii-card-divider { background: var(--bn-line); }
.wdiii-card-tag, .light-theme .wdiii-card-tag {
  color: var(--bn-muted); text-transform: none; letter-spacing: 0; font-weight: 600; font-size: .85rem;
}
.wdiii-mini-badge, .light-theme .wdiii-mini-badge {
  background: var(--bn-paper); border-color: var(--bn-line); box-shadow: none; border-radius: 6px;
}
.wdiii-mini-badge:hover { transform: none; box-shadow: none; border-color: var(--bn-ink); }

/* Release note: a highlighter stripe instead of a blue pill */
.home-update-banner {
  background: var(--bn-mark);
  color: var(--bn-mark-ink);
  border: 0;
  border-radius: 4px;
  font-weight: 600;
}
.home-update-banner-dot { background: var(--bn-mark-ink); }

/* Utility bars under the header, aligned to the content column */
.home-subheader-bar,
main.page > header + div[style*="justify-content:space-between"] { /* only the utility bars, not the 800px content wrappers on About/Privacy/Terms/Contact */
  padding-left: max(1.25rem, calc((100% - 1040px) / 2)) !important;
  padding-right: max(1.25rem, calc((100% - 1040px) / 2)) !important;
  background: var(--bn-bg) !important;
  border-bottom: 1px solid var(--bn-line) !important;
}

/* ---------- 4. Sticky navigation ---------- */
[id^="nav"][style*="sticky"] {
  background: var(--bn-bg) !important;
  backdrop-filter: none !important;
  border-bottom: 1px solid var(--bn-line) !important;
}
[id^="sectionsToggle"] {
  color: var(--bn-ink) !important; font-weight: 600;
  padding-left: max(1.25rem, calc((100% - 1040px) / 2)) !important;
  padding-right: max(1.25rem, calc((100% - 1040px) / 2)) !important;
}

.td-sections-nav { justify-content: flex-start; padding: .75rem max(1.25rem, calc((100% - 1040px) / 2)); gap: .4rem; }
.td-section-tab {
  border-radius: 6px;
  border-color: var(--bn-line);
  background: var(--bn-paper);
  color: var(--bn-muted);
}
.td-section-tab:hover { background: var(--bn-paper); border-color: var(--bn-ink); color: var(--bn-ink); }
.td-section-tab.active {
  background: var(--bn-ink);
  border-color: var(--bn-ink);
  color: var(--bn-bg);
}
.td-section-tab.active .td-tab-sub { color: var(--bn-bg) !important; opacity: .75; }
.td-tab-label { font-weight: 700; }

/* Pills become squared tags */
[style*="border-radius:9999px"], [style*="border-radius: 9999px"] { border-radius: 6px !important; }
#scrollTopBtn { border-radius: 6px !important; background: var(--bn-ink) !important; color: var(--bn-bg) !important; }

/* Inputs */
input[type="text"], input[type="search"], input[type="email"], select, textarea {
  border-radius: 8px !important;
  background: var(--bn-paper) !important;
  border: 1px solid var(--td-border-control) !important; /* form controls need 3:1 (1.4.11); --bn-line is ~1.4:1 */
  color: var(--bn-ink) !important;
  font-family: var(--bn-body);
}
input:focus-visible, textarea:focus-visible, select:focus-visible { border-color: var(--bn-ink) !important; }
:is(#searchHome, #searchFodder, #contactName, #contactEmail, #contactMessage):focus-visible { box-shadow: none; }

/* Primary buttons: ink on paper, like the Bench Notes CTA */
button[style*="background:var(--td-info)"],
a[style*="background:var(--td-info)"] {
  background: var(--bn-ink) !important;
  color: var(--bn-bg) !important;
  border-radius: 6px !important;
}
.themeToggleBtn {
  background: transparent !important;
  border: 1px solid var(--bn-line) !important;
  border-radius: 6px !important;
  color: var(--bn-ink) !important;
}

/* ---------- 5. Content ---------- */
.td-page-container { max-width: 1080px; }

.td-experiment {
  background: var(--bn-paper);
  border: 1px solid var(--bn-line);
  border-radius: 10px;
}
.td-experiment-header {
  background: var(--bn-paper) !important;
  border-bottom: 1px solid var(--bn-line) !important;
}
.td-experiment-header h2, .td-experiment-header h3 {
  font-size: clamp(1.35rem, 2.6vw, 1.75rem) !important;
  line-height: 1.15 !important;
}
.td-experiment-body { background: var(--bn-paper); }

/* Cards inside entries: quiet panels separated by rules */
.td-card, .td-comparison-card, .td-ranking-row, .td-queued-card, .td-device-card, .preset-card {
  border-radius: 8px !important;
  box-shadow: none !important;
}
[style*="border-radius:0.75rem"], [style*="border-radius: 0.75rem"],
[style*="border-radius:0.5rem"], [style*="border-radius: 0.5rem"] { border-radius: 8px !important; }

/* Findings read like the verdict rule in Bench Notes */
.td-key-finding, .td-conclusion {
  background: transparent !important;
  border: 0 !important;
  border-left: 4px solid var(--bn-win) !important;
  border-radius: 0 !important;
  padding: .25rem 0 .25rem 1rem !important;
}
.td-insight-card { border-radius: 8px !important; }

/* Tables: muted headers, single rules, tabular figures */
table { font-variant-numeric: tabular-nums; }
.td-scrollbar table th, table th {
  background: transparent !important;
  color: var(--bn-muted) !important;
  font-weight: 500 !important;
  border-bottom: 1px solid var(--bn-line) !important;
}
.td-scrollbar table td, table td { border-bottom: 1px solid var(--bn-line) !important; }

/* Fodder entries */
.fa-entry > summary:hover { background: var(--bn-paper-2); }
.fa-entry > summary:hover .fa-title { color: var(--bn-ink); }
.fa-pill { border-radius: 6px; }
.fa-submission-link { border-radius: 6px; }

/* Links that use the info token get an underline so they don't rely on colour */
.td-experiment-body a[style*="color:var(--td-info)"] { text-decoration: underline; text-underline-offset: 3px; }

/* ---------- 6. Footer, toasts, modals ---------- */
main.page > footer {
  text-align: left !important;
  padding: 1.75rem max(1.25rem, calc((100% - 1040px) / 2)) 2.5rem !important;
  border-top: 1px solid var(--bn-line) !important;
  color: var(--bn-muted) !important;
}
main.page > footer nav { justify-content: flex-start !important; }
main.page > footer p { justify-content: flex-start !important; }

.toast { border-radius: 8px; box-shadow: none; background: var(--bn-paper); }
[role="dialog"] > div { border-radius: 10px !important; background: var(--bn-paper) !important; border: 1px solid var(--bn-line) !important; }
[role="dialog"] { backdrop-filter: none !important; -webkit-backdrop-filter: none !important; }

/* ---------- 7. Phones ---------- */
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
a, button, summary, [role="button"], input, select, textarea { touch-action: manipulation; }
h1, h2, h3, p, li { overflow-wrap: break-word; }
@media (max-width: 640px) {
  body { font-size: 16px; }
  /* 16px stops iOS Safari zooming the page when a field gets focus */
  input[type="text"], input[type="search"], input[type="email"], select, textarea {
    font-size: 16px !important;
    min-height: 44px;
  }
  /* 44px touch targets (style.css leaves the header actions at 36px) */
  .home-subheader-actions button,
  .home-subheader-actions .themeToggleBtn,
  .themeToggleBtn,
  [id^="sectionsToggle"],
  #scrollTopBtn { min-height: 44px !important; min-width: 44px; }
  main.page > header h1 { font-size: clamp(1.9rem, 9vw, 2.4rem) !important; max-width: none; }
  main.page > header p { font-size: 1rem !important; max-width: none; }
  main.page > footer { padding: 1.5rem 1rem 2rem !important; }
  .td-sections-nav { padding: .5rem 1rem; }
  .td-experiment-header h2, .td-experiment-header h3 { font-size: 1.3rem !important; }
  /* Pointer-only hover states should not stick after a tap */
  .wdiii-logo-card:hover, .fodder-logo-card:hover, .wdiii-mini-badge:hover { border-color: var(--bn-line); }
  .home-update-banner { border-radius: 4px !important; text-align: left !important; justify-content: flex-start !important; }
  .home-subheader-title { justify-content: flex-start !important; text-align: left !important; }
  .home-subheader-actions { justify-content: flex-start !important; }
  main.page > header, .home-hero-header { padding: 2rem 1rem 1.5rem !important; }
  .td-section-tab { border-radius: 6px !important; }
  /* Sign-in buttons + theme toggle sit in an inline nowrap flex row that is wider than a phone */
  div:has(> .themeToggleBtn) { flex-wrap: wrap; }
  /* Controls that were 23-37px tall */
  .btn-google-signin, .btn-visitor-signin, .device-filter-cat, .device-filter-os,
  .btn-remove-slot, .btn-change-slot, .btn-add-slot, .btn-mobile-tab, .td-btn-secondary { min-height: 44px; }
  nav a, .fa-pill, .fa-submission-link, .btnOpenLogoModal { display: inline-flex; align-items: center; min-height: 44px; }
  /* Reference chips on device cards: 32px clears the WCAG 2.2 24px minimum without bloating the cards */
  .td-device-card a { display: inline-flex; align-items: center; min-height: 32px; }
  summary { padding-block: .75rem; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}