/* ============================================================
   Data & AI Governance — editorial scrollytelling
   Neutral brand, bold editorial tone
   ============================================================ */

:root {
  /* Core palette — warm paper + deep ink + one accent */
  --ink: #0a0a0a;
  --ink-2: #1a1a1a;
  --ink-3: #3a3a3a;
  --muted: #6a6a6a;
  --muted-2: #8a8a8a;
  --rule: #d9d6cf;
  --rule-2: #e9e6df;
  --paper: #f4f1e8;       /* warm off-white */
  --paper-2: #ece8dd;
  --paper-3: #fefcf5;
  --card: #ffffff;

  /* Accents */
  --signal: #ff4d1f;       /* editorial orange-red */
  --signal-ink: #c93a12;
  --signal-wash: #ffe8dd;
  --gold: #d4a017;
  --ok: #1f7a3a;
  --ok-wash: #d9ecdf;
  --warn: #c97a00;
  --warn-wash: #fbe9c9;
  --bad: #b02a1a;
  --bad-wash: #fadfd9;

  /* Dark section */
  --night: #0f0e0c;
  --night-2: #1a1915;
  --night-ink: #f4f1e8;
  --night-rule: #2a2824;

  /* Type */
  --sans: "Inter Tight", "Jost", system-ui, -apple-system, sans-serif;
  --serif: "Fraunces", "Tiempos Headline", "Source Serif Pro", Georgia, serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* Layout */
  --col-narrow: 720px;
  --col-wide: 1280px;
  --col-xwide: 1440px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.5;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ---------- Type scale ---------- */

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
}
.eyebrow--signal { color: var(--signal-ink); }
.eyebrow--night { color: var(--night-ink); opacity: 0.7; }

.display {
  font-family: var(--serif);
  font-weight: 400;
  font-style: normal;
  letter-spacing: -0.025em;
  line-height: 0.98;
  font-size: clamp(56px, 8vw, 128px);
  margin: 0;
  color: var(--ink);
}
.display em {
  font-style: italic;
  font-weight: 400;
  color: var(--signal-ink);
}

.headline {
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.02;
  font-size: clamp(40px, 5.2vw, 80px);
  margin: 0;
  color: var(--ink);
}
.headline em { font-style: italic; color: var(--signal-ink); font-weight: 400; }

.subhead {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.1;
  font-size: clamp(28px, 3vw, 44px);
  margin: 0;
  color: var(--ink);
}

.kicker {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.lede {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(20px, 1.6vw, 26px);
  line-height: 1.4;
  color: var(--ink-2);
  letter-spacing: -0.005em;
  text-wrap: pretty;
}

.body {
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink-2);
  text-wrap: pretty;
}
.body--sm { font-size: 15px; line-height: 1.55; }

/* ---------- Utilities ---------- */

.container {
  max-width: var(--col-wide);
  margin: 0 auto;
  padding: 0 48px;
}
.container--narrow { max-width: var(--col-narrow); }
.container--xwide { max-width: var(--col-xwide); }

.section { padding: 160px 0; position: relative; }
.section--tight { padding: 120px 0; }
.section--dense { padding: 100px 0; }
.section--night {
  background: var(--night);
  color: var(--night-ink);
}
.section--night .display,
.section--night .headline,
.section--night .subhead { color: var(--night-ink); }
.section--night .body,
.section--night .lede { color: rgba(244, 241, 232, 0.8); }

.rule {
  height: 1px;
  background: var(--rule);
  border: 0;
  margin: 0;
}
.rule--thick { height: 2px; background: var(--ink); }
.section--night .rule { background: var(--night-rule); }
.section--night .rule--thick { background: var(--night-ink); }

/* Top ticker / brand strip */
.ticker {
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(8px);
  background: rgba(244, 241, 232, 0.92);
}
.ticker__inner {
  max-width: var(--col-xwide);
  margin: 0 auto;
  padding: 14px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.ticker__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 600;
}
.ticker__brand-dot {
  width: 10px;
  height: 10px;
  background: var(--signal);
  border-radius: 50%;
  display: inline-block;
}
.ticker__nav {
  display: flex;
  gap: 28px;
}
.ticker__nav a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s;
}
.ticker__nav a:hover { color: var(--ink); }
.ticker__meta { color: var(--muted-2); }

/* Numbered section label */
.sec-num {
  display: inline-flex;
  align-items: baseline;
  gap: 16px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.sec-num__n {
  font-family: var(--serif);
  font-size: 14px;
  font-style: italic;
  color: var(--signal-ink);
  letter-spacing: 0;
}
.section--night .sec-num { color: rgba(244, 241, 232, 0.55); }
.section--night .sec-num__n { color: var(--signal); }

/* Pill */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  background: var(--paper-3);
}
.pill--signal { border-color: var(--signal); color: var(--signal-ink); background: var(--signal-wash); }
.pill--ok { border-color: var(--ok); color: var(--ok); background: var(--ok-wash); }
.pill--warn { border-color: var(--warn); color: var(--warn); background: var(--warn-wash); }
.pill--bad { border-color: var(--bad); color: var(--bad); background: var(--bad-wash); }
.pill--dark { background: var(--ink); color: var(--paper); border-color: var(--ink); }

/* Link */
a.link {
  color: var(--signal-ink);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
  font-weight: 500;
}
a.link:hover { color: var(--signal); }

/* Fade-in on scroll */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}
[data-reveal-delay="1"] { transition-delay: 0.08s; }
[data-reveal-delay="2"] { transition-delay: 0.16s; }
[data-reveal-delay="3"] { transition-delay: 0.24s; }
[data-reveal-delay="4"] { transition-delay: 0.32s; }
[data-reveal-delay="5"] { transition-delay: 0.40s; }

/* Grids */
.grid { display: grid; gap: 32px; }
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .container { padding: 0 24px; }
  .section { padding: 96px 0; }
}

/* Quote / pull */
.pull-quote {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(28px, 3vw, 44px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
  padding: 40px 0 40px 40px;
  border-left: 3px solid var(--signal);
  text-wrap: balance;
}
.pull-quote__attr {
  font-family: var(--mono);
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 16px;
  display: block;
}

/* Button */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 24px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.02em;
  text-decoration: none;
  border: 1px solid var(--ink);
  border-radius: 2px;
  transition: transform 0.15s, background 0.15s;
  cursor: pointer;
}
.btn:hover { background: var(--signal); border-color: var(--signal); }
.btn--ghost {
  background: transparent;
  color: var(--ink);
}
.btn--ghost:hover { background: var(--ink); color: var(--paper); }
.btn--signal { background: var(--signal); border-color: var(--signal); }

.arrow {
  font-family: var(--serif);
  font-style: italic;
}