/* ============================================================================
 * site.css -- IfTheyToldUs.com (apex)
 *
 * An EFI "house brand" site. Structural skeleton (nav-collapse / hamburger /
 * nav-utils / hero-carousel / reading-progress / back-to-top / footer) is
 * inherited from the experiencerteam.com template so the future collaboration
 * platform can inline this nav the same way. The SKIN is the site's own:
 * a "declassified / on the record" identity -- institutional-credible base
 * (light) with an analysis-room dark mode, a manila file-folder motif, and a
 * three-accent system where each accent has a job:
 *   signal green  -> grounded evidence (deep links, corroboration, "on record")
 *   stamp red      -> OUR framing labels only (SIMULATION, redaction, contested)
 *   amber/gold     -> primary calls to action
 *
 * Type: serif display+body (gravitas / "document"), Lato-ish sans chrome,
 * monospace for all DATA (claim IDs, timestamps, tags, deep links).
 *
 * Theme convention: [data-theme="light"|"dark"] on <html>. Default light.
 * ============================================================================ */

/* ============================================================================
 * RESET + BASE
 * ============================================================================ */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-padding-top: calc(var(--nav-height) + 16px); scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

:root {
  /* --- Chrome (nav + footer): fixed dark ink in BOTH themes --- */
  --chrome-bg:      #14181f;
  --chrome-bg-deep: #0d1016;
  --chrome-text:    #eef1f5;
  --chrome-soft:    rgba(238, 241, 245, 0.72);
  --chrome-rule:    rgba(238, 241, 245, 0.14);

  /* --- Surfaces + ink (LIGHT default -- the credible register) --- */
  --bg:          #f4f1ea;   /* warm document paper */
  --bg-card:     #ffffff;
  --bg-strip:    #efe9db;   /* tinted section band */
  --text:        #1b1f26;
  --text-soft:   #4a5261;
  --text-faint:  #8a93a0;
  --rule:        #e0d9ca;
  --rule-soft:   #ece6d9;
  --card-border: #d8d0bf;

  /* --- Manila file-folder motif --- */
  --file-bg:     #e9dcbb;
  --file-edge:   #d3be8e;
  --file-tab:    #dfcfa4;
  --file-ink:    #43371f;

  /* --- Accents --- */
  --signal:      #1f7a4d;   /* evidence / on the record */
  --signal-deep: #16603c;
  --signal-soft: #dceee4;
  --stamp:       #b23b2e;   /* OUR labels: simulation / redaction / contested */
  --stamp-soft:  #f3ddd8;
  --amber:       #b8842a;   /* primary CTA */
  --amber-bright:#c8912f;
  --amber-soft:  #f4e7c9;

  /* --- Redaction / ink bars --- */
  --redact:      #14181f;

  --shadow-sm:   0 1px 3px rgba(20, 24, 31, 0.10);
  --shadow-md:   0 2px 12px rgba(20, 24, 31, 0.08);
  --shadow-lg:   0 16px 40px rgba(20, 24, 31, 0.12);

  /* --- Typography --- */
  --font-display: 'Merriweather', Georgia, 'Times New Roman', serif;
  --font-body:    'Merriweather', Georgia, 'Times New Roman', serif;
  --font-chrome:  'Lato', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-mono:    'IBM Plex Mono', ui-monospace, 'SF Mono', 'Menlo', 'Consolas', monospace;
  --text-xs: 12px; --text-sm: 13px; --text-base: 16px; --text-md: 18px;
  --text-lg: 21px; --text-xl: 26px; --text-2xl: 34px; --text-3xl: 46px; --text-4xl: 64px;
  --line-tight: 1.22; --line-normal: 1.6; --line-loose: 1.8;
  --fs-scale: 1;

  --z-progress: 1500; --z-nav: 1000; --z-modal: 2000;
  --max-width: 1180px; --reading-width: 720px; --nav-height: 72px;
}

[data-theme="dark"] {
  --chrome-bg:      #0a0d12;
  --chrome-bg-deep: #060809;
  --chrome-text:    #e6e9ee;
  --chrome-soft:    rgba(230, 233, 238, 0.70);
  --chrome-rule:    rgba(230, 233, 238, 0.12);

  --bg:          #0c0f14;   /* the analysis-room black */
  --bg-card:     #141922;
  --bg-strip:    #10151c;
  --text:        #e6e9ee;
  --text-soft:   #b3bcc7;
  --text-faint:  #7a8590;
  --rule:        #242c37;
  --rule-soft:   #1b222b;
  --card-border: #263040;

  --file-bg:     #211c11;
  --file-edge:   #3a3220;
  --file-tab:    #2b2415;
  --file-ink:    #e6d6ac;

  --signal:      #3fb950;
  --signal-deep: #2ea043;
  --signal-soft: #12291b;
  --stamp:       #e0654f;
  --stamp-soft:  #2e1a15;
  --amber:       #e0a52e;
  --amber-bright:#eab53f;
  --amber-soft:  #2c2413;

  --redact:      #05070a;

  --shadow-sm:   0 1px 2px rgba(0,0,0,.35);
  --shadow-md:   0 2px 12px rgba(0,0,0,.45);
  --shadow-lg:   0 16px 40px rgba(0,0,0,.55);
}

html { font-size: calc(16px * var(--fs-scale)); }
body {
  background: var(--bg); color: var(--text);
  font-family: var(--font-body); font-size: var(--text-base); line-height: var(--line-normal);
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  transition: background .2s ease, color .2s ease; overflow-x: hidden;
}
a { color: var(--signal-deep); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--amber); }
[data-theme="dark"] a { color: var(--signal); }
img { max-width: 100%; display: block; }
em { font-style: italic; }
strong { font-weight: 700; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
input, textarea, select, button { font-family: var(--font-chrome); }
::selection { background: var(--amber-soft); color: var(--text); }

/* ============================================================================
 * LAYOUT PRIMITIVES
 * ============================================================================ */
.page-wrap { min-height: 60vh; }
.section { max-width: var(--max-width); margin: 0 auto; padding: 4rem 1.5rem; }
.section-narrow { max-width: 820px; }
.section-reading { max-width: var(--reading-width); }
.section-tinted { background: var(--bg-strip); max-width: none; }
.section-tinted > * { max-width: var(--max-width); margin-left: auto; margin-right: auto; }
.section-divider { max-width: var(--max-width); margin: 0 auto; height: 1px; background: var(--rule); }
.section-label {
  font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 500;
  letter-spacing: .22em; text-transform: uppercase; color: var(--signal-deep); margin: 0 0 .6rem;
}
[data-theme="dark"] .section-label { color: var(--signal); }
.section-title { font-family: var(--font-display); font-size: var(--text-2xl); line-height: var(--line-tight); font-weight: 900; margin: 0 0 1rem; }
.section-title em { color: var(--amber); font-style: italic; }
.section-sub { font-size: var(--text-md); color: var(--text-soft); max-width: 620px; margin: 0 auto; }
.section-body p { margin: 0 0 1.1rem; }
.section-body p:last-child { margin-bottom: 0; }
.text-center { text-align: center; }

/* eyebrow + monospace ID chips reused across pages */
.mono { font-family: var(--font-mono); }
.claim-id { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--text-faint); letter-spacing: .04em; }

/* ============================================================================
 * BUTTONS
 * ============================================================================ */
.btn, .cta-button {
  display: inline-flex; align-items: center; gap: .5rem; font-family: var(--font-chrome);
  font-weight: 700; font-size: var(--text-base); line-height: 1; padding: .85rem 1.6rem;
  border-radius: 6px; cursor: pointer; transition: background .15s ease, transform .1s ease, box-shadow .15s ease;
}
.cta-button, .btn-primary {
  background: var(--amber); color: #1b1206; box-shadow: 0 4px 16px rgba(184,132,42,.28);
}
.cta-button:hover, .btn-primary:hover { background: var(--amber-bright); color: #1b1206; transform: translateY(-1px); }
[data-theme="dark"] .cta-button, [data-theme="dark"] .btn-primary { color: #241a06; }
.btn-ghost { background: transparent; border: 1px solid var(--card-border); color: var(--text); }
.btn-ghost:hover { border-color: var(--signal); color: var(--signal-deep); background: var(--signal-soft); }
.btn-signal { background: var(--signal); color: #fff; }
.btn-signal:hover { background: var(--signal-deep); color: #fff; transform: translateY(-1px); }
.btn-row { display: flex; flex-wrap: wrap; gap: .8rem; }
.btn-row.center { justify-content: center; }

/* ============================================================================
 * TOP-LEVEL CHROME: skip link + reading progress
 * ============================================================================ */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: var(--z-modal);
  background: var(--amber); color: #1b1206; padding: .6rem 1rem; font-family: var(--font-chrome); font-weight: 700;
}
.skip-link:focus { left: 8px; top: 8px; }
.reading-progress { position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: var(--z-progress); background: transparent; pointer-events: none; }
.reading-progress-bar { height: 100%; width: 0; background: var(--signal); transition: width .1s linear; }

/* ============================================================================
 * NAV
 * ============================================================================ */
.main-nav {
  position: sticky; top: 0; z-index: var(--z-nav);
  background: var(--chrome-bg); color: var(--chrome-text);
  border-bottom: 1px solid var(--chrome-rule); box-shadow: var(--shadow-sm);
}
.nav-inner { max-width: var(--max-width); margin: 0 auto; height: var(--nav-height); padding: 0 1.5rem;
  display: flex; align-items: center; gap: 1rem; }
.nav-brand { display: flex; align-items: center; gap: .6rem; color: var(--chrome-text); font-family: var(--font-display); font-weight: 900; font-size: var(--text-lg); letter-spacing: -.01em; }
.nav-brand:hover { color: var(--amber); }
.brand-logo { width: 44px; height: 44px; border-radius: 6px; }
.brand-mark { font-family: var(--font-mono); color: var(--signal); font-weight: 700; }
.brand-text .brand-if { color: var(--chrome-text); }
.nav-hamburger { display: none; flex-direction: column; gap: 5px; margin-left: auto; padding: 8px; }
.hamburger-bar { display: block; width: 24px; height: 2px; background: var(--chrome-text); transition: transform .2s ease, opacity .2s ease; }
.nav-hamburger.is-open .hamburger-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.is-open .hamburger-bar:nth-child(2) { opacity: 0; }
.nav-hamburger.is-open .hamburger-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-collapse { display: flex; align-items: center; gap: 1.4rem; margin-left: auto; }
.nav-links { display: flex; align-items: center; gap: .3rem; list-style: none; margin: 0; padding: 0; }
.nav-item { position: relative; }
.nav-link {
  display: inline-block; color: var(--chrome-soft); font-family: var(--font-chrome); font-weight: 700;
  font-size: var(--text-sm); letter-spacing: .04em; text-transform: uppercase; padding: .55rem .7rem; border-radius: 5px;
}
.nav-link:hover, .nav-item:hover .nav-link { color: var(--chrome-text); background: rgba(255,255,255,.06); }
.nav-link.is-current { color: var(--amber); }
/* member-only items: hidden until body.is-member */
.nav-member { display: none; }
body.is-member .nav-member { display: inline-block; }
body.is-member .nav-member.nav-item { display: list-item; }
body.is-member #nav-login { display: none; }

.nav-cta {
  color: #1b1206 !important; background: var(--amber); font-weight: 800;
}
.nav-cta:hover { background: var(--amber-bright); }

.nav-utils { display: flex; align-items: center; gap: .35rem; padding-left: .6rem; border-left: 1px solid var(--chrome-rule); }
.nav-util-btn { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; border-radius: 6px; color: var(--chrome-soft); }
.nav-util-btn:hover { color: var(--chrome-text); background: rgba(255,255,255,.08); }
.font-controls { display: flex; gap: 2px; }
.font-btn { width: auto; padding: 0 8px; font-family: var(--font-chrome); font-weight: 700; font-size: 13px; }
.font-btn-active { color: var(--amber); }
.icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: block; }

@media (max-width: 900px) {
  .nav-hamburger { display: flex; }
  .nav-collapse {
    position: fixed; top: var(--nav-height); left: 0; right: 0; bottom: 0; margin: 0;
    flex-direction: column; align-items: stretch; gap: 0; background: var(--chrome-bg-deep);
    padding: 1rem 1.5rem 2rem; overflow-y: auto; transform: translateX(100%); transition: transform .25s ease;
  }
  .nav-collapse.is-open { transform: translateX(0); }
  .nav-links { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-link { padding: .9rem .4rem; border-bottom: 1px solid var(--chrome-rule); border-radius: 0; font-size: var(--text-base); }
  .nav-utils { border-left: 0; border-top: 1px solid var(--chrome-rule); padding: 1rem .2rem 0; margin-top: .6rem; }
}

/* ============================================================================
 * HERO CAROUSEL
 * ============================================================================ */
.hero-carousel { position: relative; height: min(78vh, 640px); overflow: hidden; background: var(--chrome-bg-deep); }
.hero-track { position: absolute; inset: 0; }
.hero-slide { position: absolute; inset: 0; opacity: 0; transition: opacity .8s ease; display: grid; align-items: center; }
.hero-slide.active { opacity: 1; }
.hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-slide::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(8,10,14,.90) 0%, rgba(8,10,14,.72) 42%, rgba(8,10,14,.30) 100%);
}
.hero-slide-content { position: relative; z-index: 2; max-width: var(--max-width); width: 100%; margin: 0 auto; padding: 0 1.5rem; color: #f2f4f7; }
.hero-slide-content .inner { max-width: 640px; }
.hero-eyebrow { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: .28em; text-transform: uppercase; color: var(--signal); margin-bottom: 1rem; }
.hero-title { font-family: var(--font-display); font-size: clamp(2rem, 5vw, var(--text-4xl)); font-weight: 900; line-height: 1.08; margin: 0 0 1rem; letter-spacing: -.015em; }
.hero-title em { color: var(--amber); font-style: italic; }
.hero-subtitle { font-size: var(--text-lg); color: rgba(242,244,247,.9); line-height: 1.5; margin: 0 0 1.6rem; }
.hero-cta { display: inline-flex; align-items: center; gap: .5rem; font-family: var(--font-chrome); font-weight: 700; color: #f2f4f7; border-bottom: 2px solid var(--amber); padding-bottom: 3px; }
.hero-cta:hover { color: var(--amber); }
.hero-controls { position: absolute; z-index: 3; bottom: 1.4rem; left: 0; right: 0; display: flex; align-items: center; justify-content: center; gap: 1rem; }
.hero-arrow { width: 40px; height: 40px; border-radius: 50%; background: rgba(0,0,0,.35); border: 1px solid rgba(255,255,255,.28); color: #fff; font-size: 22px; line-height: 1; display: grid; place-items: center; }
.hero-arrow:hover { background: rgba(0,0,0,.6); }
.hero-dots { display: flex; gap: .5rem; }
.hero-dot { width: 9px; height: 9px; border-radius: 50%; background: rgba(255,255,255,.4); }
.hero-dot.active { background: var(--amber); }
@media (max-width: 640px) { .hero-carousel { height: 70vh; } }

/* persistent primary CTA bar below hero */
.hero-cta-bar { text-align: center; margin: 2rem auto .5rem; padding: 0 1rem; }
.hero-cta-note { margin: .7rem 0 0; font-family: var(--font-chrome); font-size: var(--text-sm); color: var(--text-soft); }

/* ============================================================================
 * SIMULATION BANNER (guardrail: claims-not-facts, prominent + everywhere)
 * ============================================================================ */
.sim-banner {
  max-width: var(--max-width); margin: 0 auto; padding: 1rem 1.4rem; display: flex; gap: 1rem; align-items: flex-start;
  background: var(--stamp-soft); border: 1px solid color-mix(in srgb, var(--stamp) 35%, transparent);
  border-left: 5px solid var(--stamp); border-radius: 8px;
}
.sim-banner .stamp-badge { flex: none; }
.sim-banner p { margin: 0; font-size: var(--text-sm); color: var(--text); line-height: 1.5; }
.sim-banner.full { border-radius: 0; max-width: none; }
.sim-banner.full > .sim-inner { max-width: var(--max-width); margin: 0 auto; display: flex; gap: 1rem; align-items: flex-start; }

/* the SIMULATION / status "stamp" -- rubber-stamp look */
.stamp-badge {
  display: inline-flex; align-items: center; gap: .4rem; font-family: var(--font-mono); font-weight: 700;
  font-size: var(--text-xs); letter-spacing: .18em; text-transform: uppercase; color: var(--stamp);
  border: 2px solid var(--stamp); border-radius: 4px; padding: .3rem .55rem; transform: rotate(-2deg); white-space: nowrap;
}
.stamp-badge.solid { background: var(--stamp); color: #fff; border-color: var(--stamp); }

/* ============================================================================
 * THE BRIEF -- "declassified report" document card (home centerpiece)
 * ============================================================================ */
.brief { max-width: 880px; margin: 0 auto; }
.brief-doc {
  background: var(--bg-card); border: 1px solid var(--card-border); border-radius: 4px;
  box-shadow: var(--shadow-lg); position: relative; overflow: hidden;
}
.brief-doc::before { /* top classification strip */
  content: "UNCLASSIFIED // SIMULATION // FOR ILLUSTRATION ONLY";
  display: block; font-family: var(--font-mono); font-size: 11px; letter-spacing: .16em; text-align: center;
  color: #fff; background: var(--stamp); padding: .4rem; text-transform: uppercase;
}
.brief-doc-body { padding: 2.4rem clamp(1.4rem, 5vw, 3.4rem) 2.8rem; position: relative; }
.brief-doc .doc-meta { display: flex; flex-wrap: wrap; gap: .4rem 1.4rem; font-family: var(--font-mono); font-size: var(--text-xs); color: var(--text-faint); border-bottom: 1px solid var(--rule); padding-bottom: 1rem; margin-bottom: 1.6rem; }
.brief-doc h2, .brief-doc h3 { font-family: var(--font-display); }
.brief-doc h2 { font-size: var(--text-xl); font-weight: 900; margin: 0 0 .3rem; }
.brief-doc h3 { font-size: var(--text-md); margin: 1.8rem 0 .5rem; }
.brief-doc p { margin: 0 0 1rem; line-height: var(--line-loose); }
.brief-doc .doc-watermark {
  position: absolute; top: 42%; left: 50%; transform: translate(-50%,-50%) rotate(-24deg);
  font-family: var(--font-mono); font-weight: 700; font-size: clamp(2.4rem, 9vw, 5.5rem); letter-spacing: .1em;
  color: color-mix(in srgb, var(--stamp) 12%, transparent); pointer-events: none; white-space: nowrap; z-index: 0;
}
.brief-doc .brief-doc-body > * { position: relative; z-index: 1; }
.brief-actions { display: flex; flex-wrap: wrap; gap: .8rem; justify-content: center; margin-top: 1.6rem; }
.placeholder-note { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--text-faint); text-align: center; margin-top: .9rem; }

/* ============================================================================
 * BUCKET BADGES (corroboration tier) -- green -> red scale
 * ============================================================================ */
.bucket { display: inline-flex; align-items: center; gap: .35rem; font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 700; letter-spacing: .05em; text-transform: uppercase; padding: .22rem .5rem; border-radius: 3px; border: 1px solid; }
.bucket::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.bucket.strongly_corroborated { color: var(--signal-deep); border-color: color-mix(in srgb, var(--signal) 45%, transparent); background: var(--signal-soft); }
[data-theme="dark"] .bucket.strongly_corroborated { color: var(--signal); }
.bucket.multiply_asserted { color: #7a6a1a; border-color: color-mix(in srgb, var(--amber) 45%, transparent); background: var(--amber-soft); }
[data-theme="dark"] .bucket.multiply_asserted { color: var(--amber); }
.bucket.single_source { color: var(--text-soft); border-color: var(--card-border); background: var(--bg-strip); }
.bucket.contested { color: var(--stamp); border-color: color-mix(in srgb, var(--stamp) 45%, transparent); background: var(--stamp-soft); }
.bucket.floor { color: var(--text-faint); border-color: var(--rule-soft); background: var(--bg-strip); }
/* canonical claim detail: stack the member accounts under a proposition */
.canonical-detail { display: flex; flex-direction: column; }
.member-claim { padding: .85rem 0; border-top: 1px solid var(--rule-soft); }
.member-claim:first-child { border-top: 0; padding-top: .25rem; }
.single-group > summary .topic-name { color: var(--text-soft); font-weight: 600; }
.single-row { display: flex; flex-wrap: wrap; gap: .4rem 1rem; align-items: baseline; justify-content: space-between; padding: .5rem .2rem; border-top: 1px solid var(--rule-soft); }
.single-row:first-child { border-top: 0; }
.single-statement { flex: 1 1 60%; min-width: 260px; }
.single-meta { display: inline-flex; gap: .6rem; align-items: baseline; font-size: var(--text-sm); color: var(--text-faint); }

/* ============================================================================
 * DEEP-LINK CHIPS + evidence quotes (the "on the record" green)
 * ============================================================================ */
.deeplink {
  display: inline-flex; align-items: center; gap: .35rem; font-family: var(--font-mono); font-size: var(--text-xs);
  font-weight: 600; color: var(--signal-deep); background: var(--signal-soft);
  border: 1px solid color-mix(in srgb, var(--signal) 30%, transparent); border-radius: 4px; padding: .18rem .5rem;
}
[data-theme="dark"] .deeplink { color: var(--signal); }
.deeplink:hover { background: var(--signal); color: #fff; }
.deeplink::before { content: "\25B8"; } /* ▸ */
.evidence-quote { border-left: 3px solid var(--signal); padding: .3rem 0 .3rem 1rem; margin: .6rem 0; color: var(--text); font-style: italic; }
.evidence-quote cite { display: block; font-style: normal; font-size: var(--text-sm); color: var(--text-soft); margin-top: .35rem; }
.evidence-quote cite .speaker { font-family: var(--font-chrome); font-weight: 700; color: var(--text); font-style: normal; }

/* ============================================================================
 * FILE-FOLDER CARDS (sources / people / feature tiles)
 * ============================================================================ */
.file-card {
  position: relative; background: var(--file-bg); color: var(--file-ink);
  border: 1px solid var(--file-edge); border-radius: 2px 8px 8px 8px; padding: 1.3rem 1.4rem 1.4rem; box-shadow: var(--shadow-sm);
}
.file-card::before { /* folder tab */
  content: ""; position: absolute; top: -11px; left: 18px; width: 84px; height: 12px;
  background: var(--file-tab); border: 1px solid var(--file-edge); border-bottom: 0; border-radius: 6px 6px 0 0;
}
.file-card h3 { font-family: var(--font-display); font-size: var(--text-md); margin: 0 0 .4rem; color: var(--file-ink); }
.file-card .file-no { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: .1em; text-transform: uppercase; opacity: .7; }
.file-card p { margin: .5rem 0 0; font-size: var(--text-sm); line-height: 1.5; }
.card-grid { display: grid; gap: 1.6rem; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

/* generic feature list */
.feature-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.4rem; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.feature-item { background: var(--bg-card); border: 1px solid var(--rule); border-radius: 8px; padding: 1.4rem; }
.feature-item h3 { font-family: var(--font-display); font-size: var(--text-md); margin: 0 0 .5rem; }
.feature-item p { margin: 0; color: var(--text-soft); font-size: var(--text-sm); line-height: 1.55; }

/* numbered "how it works" steps */
.steps { list-style: none; counter-reset: step; margin: 0; padding: 0; display: grid; gap: 1.4rem; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.step { position: relative; background: var(--bg-card); border: 1px solid var(--rule); border-radius: 8px; padding: 1.6rem 1.4rem 1.4rem; counter-increment: step; }
.step::before { content: counter(step, decimal-leading-zero); position: absolute; top: -14px; left: 1.2rem; font-family: var(--font-mono); font-weight: 700; font-size: var(--text-sm); color: #fff; background: var(--signal); padding: .25rem .5rem; border-radius: 4px; }
.step h3 { font-family: var(--font-display); font-size: var(--text-md); margin: .3rem 0 .5rem; }
.step p { margin: 0; color: var(--text-soft); font-size: var(--text-sm); line-height: 1.55; }

/* pull quote + stat tiles */
.pull-quote { font-family: var(--font-display); font-style: italic; font-size: var(--text-xl); line-height: 1.4; color: var(--text); border-left: 4px solid var(--amber); padding-left: 1.4rem; margin: 2rem 0; }
.stat-row { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); margin: 1.5rem 0; }
.stat { background: var(--bg-card); border: 1px solid var(--rule); border-top: 3px solid var(--signal); border-radius: 6px; padding: 1.2rem; text-align: center; }
.stat .num { font-family: var(--font-mono); font-size: var(--text-2xl); font-weight: 700; color: var(--text); }
.stat .lbl { font-family: var(--font-chrome); font-size: var(--text-xs); text-transform: uppercase; letter-spacing: .08em; color: var(--text-faint); margin-top: .3rem; }

/* ============================================================================
 * DATA PAGE -- category accordion + claim explorer
 * ============================================================================ */
.topic-group { border: 1px solid var(--rule); border-radius: 8px; margin-bottom: 1rem; overflow: hidden; background: var(--bg-card); }
.topic-group > summary { list-style: none; cursor: pointer; padding: 1.1rem 1.4rem; display: flex; align-items: center; gap: 1rem; font-family: var(--font-chrome); font-weight: 700; }
.topic-group > summary::-webkit-details-marker { display: none; }
.topic-group > summary::before { content: "\002B"; font-family: var(--font-mono); color: var(--signal); font-weight: 700; width: 1rem; }
.topic-group[open] > summary::before { content: "\2212"; }
.topic-group > summary .topic-name { font-size: var(--text-md); font-family: var(--font-display); }
.topic-group > summary .topic-count { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--text-faint); margin-left: auto; }
.topic-body { padding: 0 1.4rem 1rem; border-top: 1px solid var(--rule-soft); }

.claim { border-bottom: 1px solid var(--rule-soft); }
.claim > summary { list-style: none; cursor: pointer; padding: 1rem 0; display: flex; gap: .8rem; align-items: flex-start; }
.claim > summary::-webkit-details-marker { display: none; }
.claim > summary .claim-head { flex: 1; }
.claim .claim-statement { font-size: var(--text-base); line-height: 1.5; }
.claim .claim-glance { display: flex; flex-wrap: wrap; gap: .5rem .9rem; margin-top: .5rem; align-items: center; font-size: var(--text-xs); color: var(--text-soft); }
.claim-glance .indep { font-family: var(--font-mono); }
.claim-glance .indep::before { content: "\25C7 "; color: var(--signal); }
.claim-detail { padding: .4rem 0 1.4rem; }
.claim-detail .basis-block { background: var(--bg-strip); border: 1px solid var(--rule); border-radius: 8px; padding: 1.1rem 1.3rem; margin-bottom: 1rem; }
.claim-detail h4 { font-family: var(--font-chrome); font-size: var(--text-xs); text-transform: uppercase; letter-spacing: .1em; color: var(--text-faint); margin: 0 0 .7rem; }
.speaker-line { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; padding: .35rem 0; font-size: var(--text-sm); }
.speaker-line .tier-tag { font-family: var(--font-mono); font-size: 11px; color: var(--text-faint); border: 1px solid var(--rule); border-radius: 3px; padding: 0 .35rem; }
.speaker-line.derivative { opacity: .6; }
.speaker-line.derivative .why { color: var(--stamp); font-family: var(--font-mono); font-size: 11px; }
.score-inputs { display: flex; flex-wrap: wrap; gap: .5rem 1.2rem; font-family: var(--font-mono); font-size: var(--text-xs); color: var(--text-soft); }
.score-inputs b { color: var(--text); }

/* ============================================================================
 * FORMS (contact / suggest additions / custom)
 * ============================================================================ */
.form-card { max-width: 680px; background: var(--bg-card); border: 1px solid var(--card-border); border-left: 4px solid var(--amber); border-radius: 10px; padding: 1.8rem 1.9rem; box-shadow: var(--shadow-md); }
.form-disclaimer { background: var(--bg-strip); border: 1px solid var(--rule); border-radius: 8px; padding: 1rem 1.2rem; font-size: var(--text-sm); color: var(--text-soft); line-height: 1.55; margin-bottom: 1.4rem; }
.form-disclaimer strong { color: var(--text); }
.field { display: grid; gap: .35rem; margin-bottom: 1rem; }
.field > span { font-family: var(--font-chrome); font-weight: 700; font-size: var(--text-sm); }
.field .opt { font-weight: 400; color: var(--text-faint); }
.field input[type=text], .field input[type=email], .field textarea, .field input:not([type]) {
  width: 100%; padding: .65rem .8rem; border: 1px solid var(--card-border); border-radius: 6px;
  background: var(--bg); color: var(--text); font-family: var(--font-chrome); font-size: var(--text-base);
}
.field textarea { resize: vertical; min-height: 92px; }
.field input:focus, .field textarea:focus { outline: 2px solid var(--signal); outline-offset: 1px; border-color: var(--signal); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 560px) { .field-row { grid-template-columns: 1fr; } }
.check { display: flex; gap: .5rem; align-items: flex-start; font-size: var(--text-sm); }
.suggest-section { border: 1px solid var(--rule); border-radius: 8px; padding: 1.1rem 1.2rem; margin-bottom: 1.2rem; }
.suggest-section > legend, .suggest-section > .legend { font-family: var(--font-chrome); font-weight: 800; font-size: var(--text-sm); text-transform: uppercase; letter-spacing: .06em; display: flex; align-items: center; gap: .5rem; margin-bottom: .8rem; }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-status { font-size: var(--text-sm); margin-top: .8rem; }
.form-status.is-error { color: var(--stamp); font-weight: 700; }
.form-status.is-ok { color: var(--signal-deep); font-weight: 700; }
.form-consent { font-size: var(--text-xs); color: var(--text-faint); margin: .8rem 0 0; }

/* Custom-report source toggles */
.source-toggle-group { border: 1px solid var(--rule); border-radius: 8px; margin-bottom: .8rem; background: var(--bg-card); }
.source-toggle-group > summary { cursor: pointer; list-style: none; padding: .9rem 1.2rem; display: flex; align-items: center; gap: .7rem; font-family: var(--font-chrome); font-weight: 700; }
.source-toggle-group > summary::-webkit-details-marker { display: none; }
.source-toggle-group .grp-count { margin-left: auto; font-family: var(--font-mono); font-size: var(--text-xs); color: var(--text-faint); }
.toggle-row { display: flex; align-items: center; gap: .7rem; padding: .5rem 1.2rem; border-top: 1px solid var(--rule-soft); font-size: var(--text-sm); }
.toggle-row .src-title { flex: 1; }
.toggle-row .src-meta { font-family: var(--font-mono); font-size: 11px; color: var(--text-faint); }
/* switch */
.switch { position: relative; width: 40px; height: 22px; flex: none; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch .track { position: absolute; inset: 0; background: var(--card-border); border-radius: 999px; transition: background .15s ease; }
.switch .track::before { content: ""; position: absolute; left: 2px; top: 2px; width: 18px; height: 18px; background: #fff; border-radius: 50%; transition: transform .15s ease; }
.switch input:checked + .track { background: var(--signal); }
.switch input:checked + .track::before { transform: translateX(18px); }

/* ============================================================================
 * STATUS / STUB BLOCKS
 * ============================================================================ */
.assembling {
  text-align: center; border: 1px dashed var(--card-border); border-radius: 10px; padding: 2.4rem 1.6rem; background: var(--bg-strip);
}
.assembling .status-tag { display: inline-block; font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: .12em; text-transform: uppercase; color: var(--amber); border: 1px solid var(--amber); border-radius: 4px; padding: .25rem .6rem; margin-bottom: 1rem; }
.assembling p { color: var(--text-soft); max-width: 560px; margin: 0 auto; }

/* atmospheric strip */
.atmosphere-strip { height: 220px; overflow: hidden; }
.atmosphere-strip img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.9); }

/* ============================================================================
 * FOOTER
 * ============================================================================ */
.site-footer { background: var(--chrome-bg); color: var(--chrome-text); margin-top: 3rem; }
.footer-inner { max-width: var(--max-width); margin: 0 auto; padding: 3rem 1.5rem 2rem; }
.footer-grid { display: grid; gap: 2rem; grid-template-columns: 1.6fr 1fr 1fr 1.6fr; }
@media (max-width: 820px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand { font-family: var(--font-display); font-weight: 900; font-size: var(--text-lg); color: var(--chrome-text); display: inline-flex; align-items: center; gap: .5rem; }
.footer-tagline { color: var(--chrome-soft); font-size: var(--text-sm); line-height: 1.6; margin: .8rem 0 0; max-width: 320px; }
.footer-heading { font-family: var(--font-chrome); font-size: var(--text-xs); text-transform: uppercase; letter-spacing: .1em; color: var(--chrome-soft); margin: 0 0 .8rem; }
.footer-links { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; }
.footer-links a { color: var(--chrome-text); font-size: var(--text-sm); }
.footer-links a:hover { color: var(--amber); }
.footer-social a { color: var(--chrome-soft); } .footer-social a:hover { color: var(--amber); }
.footer-bottom { border-top: 1px solid var(--chrome-rule); margin-top: 2rem; padding-top: 1.2rem; display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center; }
.footer-bottom p { margin: 0; color: var(--chrome-soft); font-size: var(--text-xs); }
.footer-bottom-links { display: flex; flex-wrap: wrap; gap: 1rem; }
.footer-bottom-links a { color: var(--chrome-soft); font-size: var(--text-xs); }
.footer-bottom-links a:hover { color: var(--amber); }
.footer-version { font-family: var(--font-mono); font-size: 11px; color: var(--chrome-soft); }

/* ============================================================================
 * BACK TO TOP
 * ============================================================================ */
.back-to-top { position: fixed; right: 20px; bottom: 20px; width: 44px; height: 44px; border-radius: 50%; background: var(--signal); color: #fff; display: grid; place-items: center; font-size: 20px; box-shadow: var(--shadow-md); opacity: 0; pointer-events: none; transform: translateY(10px); transition: opacity .2s ease, transform .2s ease; z-index: var(--z-nav); }
.back-to-top.show { opacity: 1; pointer-events: auto; transform: translateY(0); }

/* reading-page prose */
.prose { max-width: var(--reading-width); margin: 0 auto; }
.prose h2 { font-family: var(--font-display); font-size: var(--text-xl); margin: 2.2rem 0 .8rem; }
.prose h3 { font-family: var(--font-display); font-size: var(--text-md); margin: 1.6rem 0 .5rem; }
.prose p, .prose li { line-height: var(--line-loose); }
.prose ul, .prose ol { padding-left: 1.4rem; }
.prose li { margin-bottom: .5rem; }
.page-head { max-width: var(--max-width); margin: 0 auto; padding: 3rem 1.5rem 1rem; }
.page-head h1 { font-family: var(--font-display); font-size: var(--text-3xl); font-weight: 900; line-height: 1.1; margin: .4rem 0 .6rem; }
.page-head .lede { font-size: var(--text-lg); color: var(--text-soft); max-width: 720px; }

/* ============================================================================
 * ROLLOVER / HOVER INTERACTIONS  (house signature: lift + accent glow)
 * ============================================================================ */
.file-card { transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease; }
.file-card::before { transition: background .16s ease, border-color .16s ease; }
a.file-card, a.file-card:hover { color: var(--file-ink); }         /* don't let the link recolor the card text */
a.file-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--amber); }
a.file-card:hover::before { background: var(--amber); border-color: var(--amber); }
a.file-card:hover h3 { color: var(--amber); }

.feature-item { transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease; }
.feature-item:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--signal); }

.step { transition: transform .16s ease, box-shadow .16s ease; }
.step:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }

.stat { transition: transform .16s ease, box-shadow .16s ease; }
.stat:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

/* Data page: topic + claim rows respond on rollover */
.topic-group > summary { transition: background .16s ease; }
.topic-group > summary:hover { background: var(--bg-strip); }
.claim > summary { transition: color .16s ease; }
.claim > summary:hover .claim-statement { color: var(--signal-deep); }
[data-theme="dark"] .claim > summary:hover .claim-statement { color: var(--signal); }
.source-toggle-group > summary { transition: background .16s ease; }
.source-toggle-group > summary:hover { background: var(--bg-strip); }

/* the enlarged nav logo gets a subtle rollover: scale + amber glow */
.brand-logo { transition: transform .18s ease, filter .18s ease; }
.nav-brand:hover .brand-logo { transform: scale(1.06); filter: drop-shadow(0 0 7px rgba(224,165,46,.55)); }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }
