/* ===========================================================================
   Promethea — landing page (direction 1b · "The instrument")
   Implements the Promethea Landing design doc against the Promethea design
   system. Tokens are lifted verbatim from the design-system token files;
   components below reproduce Button / Eyebrow / Badge / MetricStat /
   SignalCallout exactly as the _ds_bundle.js primitives render them.
   =========================================================================== */

/* Promethea webfonts — Google-hosted (matches tokens/fonts.css) */
@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,400;0,6..72,500;0,6..72,600;1,6..72,400;1,6..72,500&family=Hanken+Grotesk:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

/* --- Color tokens ------------------------------------------------------- */
:root {
  --ink: #1A1830;
  --ink-raised: #26243F;
  --brand-purple: #6B4EC9;
  --bright-purple: #8A6FE8;
  --paper: #F6F3EC;
  --paper-backdrop: #E9E5DA;
  --white: #FFFFFF;
  --coral: #E0607A;

  --ink-90: rgba(26, 24, 48, 0.90);
  --ink-82: rgba(26, 24, 48, 0.82);
  --ink-72: rgba(26, 24, 48, 0.72);
  --ink-60: rgba(26, 24, 48, 0.60);
  --ink-50: rgba(26, 24, 48, 0.50);
  --ink-45: rgba(26, 24, 48, 0.45);
  --ink-14: rgba(26, 24, 48, 0.14);
  --ink-12: rgba(26, 24, 48, 0.12);
  --ink-08: rgba(26, 24, 48, 0.08);

  --paper-85: rgba(246, 243, 236, 0.85);
  --paper-72: rgba(246, 243, 236, 0.72);
  --paper-65: rgba(246, 243, 236, 0.65);
  --paper-55: rgba(246, 243, 236, 0.55);
  --paper-45: rgba(246, 243, 236, 0.45);
  --paper-30: rgba(246, 243, 236, 0.30);
  --paper-18: rgba(246, 243, 236, 0.18);
  --paper-12: rgba(246, 243, 236, 0.12);

  --coral-tint: rgba(224, 96, 122, 0.12);
  --coral-border: rgba(224, 96, 122, 0.30);

  --border: var(--ink-14);
  --border-subtle: var(--ink-08);
  --border-on-ink: var(--paper-18);

  --link: var(--brand-purple);
  --link-hover: var(--bright-purple);

  /* --- Typography tokens --- */
  --font-display: 'Newsreader', Georgia, 'Times New Roman', serif;
  --font-sans: 'Hanken Grotesk', system-ui, -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* --- Spacing & radius tokens --- */
  --radius-sm: 3px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 9px;
  --radius-card: 14px;
  --radius-pill: 100px;

  /* --- Effects --- */
  --shadow-board: 0 1px 60px rgba(26, 24, 48, 0.12);
  --shadow-float: 0 30px 60px -30px rgba(26, 24, 48, 0.50);
  --shadow-raise: 0 2px 8px rgba(26, 24, 48, 0.06);
  --focus-ring: 0 0 0 3px rgba(107, 78, 201, 0.35);

  /* section rhythm for the ink board */
  --pad-x: 56px;
}

/* --- Base --------------------------------------------------------------- */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  /* direction 1b is an ink board — the page itself is the board */
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--link); text-decoration: none; }
a:hover { color: var(--link-hover); }

em { font-style: italic; }

:focus-visible { outline: none; box-shadow: var(--focus-ring); border-radius: var(--radius-sm); }

.inner { max-width: 1180px; margin: 0 auto; }

/* Full-bleed color bands */
.band { padding: 84px var(--pad-x); }
.band--ink { background: var(--ink); color: var(--paper); }
.band--paper { background: var(--paper); color: var(--ink); }

/* --- Component: Eyebrow ------------------------------------------------- */
.eyebrow {
  display: inline-flex;
  align-items: baseline;
  gap: 16px;
}
.eyebrow__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--brand-purple);
}
.eyebrow__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--brand-purple);
}

/* --- Component: Button -------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 600;
  line-height: 1;
  border-radius: var(--radius-xl);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease, opacity .15s ease;
}
.btn--sm { padding: 9px 16px; font-size: 14px; }
.btn--md { padding: 11px 20px; font-size: 15px; }
.btn--lg { padding: 15px 26px; font-size: 16px; }

.btn--primary { background: var(--brand-purple); color: var(--paper); }
.btn--primary:hover { background: var(--bright-purple); color: var(--paper); }

.btn--secondary { background: var(--ink); color: var(--paper); }
.btn--secondary.on-ink { background: var(--paper); color: var(--ink); }
.btn--secondary:hover { opacity: .9; }

.btn--outline { background: transparent; color: var(--ink); border-color: var(--border); }
.btn--outline.on-ink { color: var(--paper); border-color: var(--border-on-ink); }
.btn--outline:hover { border-color: var(--brand-purple); color: var(--brand-purple); }
.btn--outline.on-ink:hover { border-color: var(--paper); color: var(--paper); }

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-radius: 0;
  border-bottom: 2px solid var(--ink-14);
}
.btn--ghost.on-ink { color: var(--paper); border-bottom-color: var(--paper-30); }
.btn--ghost.btn--lg { padding: 15px 6px; }
.btn--ghost.btn--sm { padding: 9px 6px; }
.btn--ghost:hover { color: var(--brand-purple); border-bottom-color: var(--brand-purple); }
.btn--ghost.on-ink:hover { color: var(--bright-purple); border-bottom-color: var(--bright-purple); }

/* --- Component: Badge --------------------------------------------------- */
.badge--pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 6px 14px;
}
.badge--pill.on-ink { border-color: var(--border-on-ink); }
.badge__dot { width: 7px; height: 7px; border-radius: 50%; background: var(--brand-purple); flex: none; }
.badge__text {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-60);
}
.badge--pill.on-ink .badge__text { color: var(--paper-65); }

.badge--version {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--bright-purple);
  border: 1px solid rgba(138,111,232,0.4);
  border-radius: var(--radius-md);
  padding: 4px 9px;
}

.badge--chip {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-60);
  border: 1px solid var(--border);
  padding: 6px 12px;
}
.badge--chip.on-ink { color: var(--paper-65); border-color: var(--border-on-ink); }

/* --- Component: MetricStat ---------------------------------------------- */
.metric { display: flex; flex-direction: column; gap: 8px; }
.metric__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper-45);
  display: flex;
  align-items: center;
  gap: 6px;
}
.metric__value {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--paper);
}
.metric__bar { height: 4px; background: var(--brand-purple); border-radius: 2px; }
.metric.is-signal .metric__label,
.metric.is-signal .metric__value { color: var(--coral); }
.metric.is-signal .metric__bar { background: var(--coral); }
/* on paper variant */
.metric.on-paper .metric__label { color: var(--ink-45); }
.metric.on-paper .metric__value { color: var(--ink); }

/* --- Component: SignalCallout ------------------------------------------- */
.signal-callout {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--coral-tint);
  border: 1px solid var(--coral-border);
  border-radius: var(--radius-lg);
  padding: 11px 14px;
  max-width: 340px;
}
.signal-callout__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--coral); flex: none; }
.signal-callout__text {
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.5;
  color: var(--paper-85);
}

/* --- Type helpers ------------------------------------------------------- */
.display { font-family: var(--font-display); font-weight: 500; margin: 0; text-wrap: pretty; }
.mono { font-family: var(--font-mono); }

/* =========================================================================
   Layout — sections
   ========================================================================= */

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px var(--pad-x);
  background: rgba(26, 24, 48, 0.82);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--paper-12);
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand__dot {
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--bright-purple); display: block;
  animation: p-pulse 2.1s ease-out infinite;
}
.brand__name {
  font-family: var(--font-mono);
  font-size: 14px; font-weight: 500;
  letter-spacing: 0.14em; color: var(--paper);
}
.nav__links { display: flex; align-items: center; gap: 24px; }
.nav__links a { font-size: 14px; color: var(--paper-65); }
.nav__links a:hover { color: var(--paper); }

/* Hero */
.hero {
  padding: 96px var(--pad-x) 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}
.hero h1 {
  font-size: 64px;
  line-height: 1.04;
  letter-spacing: -0.025em;
  color: var(--paper);
  max-width: 20ch;
}
.hero h1 em { color: var(--bright-purple); }
.hero__sub {
  font-size: 18px; line-height: 1.6;
  color: var(--paper-72); max-width: 62ch; margin: 0;
}
.hero__actions { display: flex; align-items: center; gap: 16px; margin-top: 4px; flex-wrap: wrap; justify-content: center; }

/* Chart card */
.chart-wrap { padding: 56px var(--pad-x) 76px; }
.chart-card {
  background: var(--ink-raised);
  border: 1px solid var(--paper-12);
  padding: 30px 32px 26px;
  animation: p-rise 0.7s ease both;
}
.chart-card__head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 24px; margin-bottom: 24px; flex-wrap: wrap;
}
.chart-card__title {
  font-family: var(--font-display); font-size: 21px; color: var(--paper); margin: 6px 0 0;
}
.chart-card__kicker {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--paper-45);
}
.scrub-readout {
  display: flex; align-items: center; gap: 22px;
  padding: 12px 0 16px; border-top: 1px solid var(--paper-12);
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.04em;
  color: var(--paper-55); flex-wrap: wrap;
}
.scrub-readout .wk { color: var(--paper); text-transform: uppercase; letter-spacing: 0.14em; }
.scrub-readout .lead-v { color: var(--bright-purple); }
.scrub-readout .rep-v { color: var(--paper-85); }
[hidden] { display: none !important; }
.chart { width: 100%; height: 300px; display: block; overflow: visible; cursor: crosshair; }
.metrics-row {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
  margin-top: 32px; padding-top: 28px; border-top: 1px solid var(--paper-12);
}

/* Section heading blocks */
.head-block { display: flex; flex-direction: column; align-items: flex-start; gap: 18px; }
.head-block h2 {
  font-family: var(--font-display); font-weight: 500;
  font-size: 36px; line-height: 1.14; letter-spacing: -0.015em; margin: 0;
}
.head-block h2 em { color: var(--brand-purple); }
.band--ink .head-block h2 em { color: var(--bright-purple); }
.head-block p { font-size: 17px; line-height: 1.6; margin: 0; }

/* The gap */
.gap-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; align-items: start; }
.gap-grid h2 { font-size: 38px; }
.gap-grid .head-block > p { color: var(--ink-72); }
.gap-list { display: flex; flex-direction: column; border-top: 1px solid var(--ink-14); }
.gap-row {
  display: grid; grid-template-columns: 132px 1fr; gap: 28px; padding: 28px 0;
}
.gap-row + .gap-row { }
.gap-list .gap-row:first-child { border-bottom: 1px solid var(--ink-14); }
.gap-row__tag {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--ink-50);
}
.gap-row--lead .gap-row__tag { color: var(--brand-purple); }
.gap-row__body { display: flex; flex-direction: column; gap: 10px; }
.gap-row__lead { font-family: var(--font-display); font-size: 24px; line-height: 1.3; margin: 0; color: var(--ink); }
.gap-row__body p:last-child { font-size: 15px; line-height: 1.6; color: var(--ink-72); margin: 0; }

/* How it works */
.how-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 48px; margin-bottom: 48px; flex-wrap: wrap;
}
.how-head .head-block { flex: 1 1 0; max-width: 56ch; }
.how-head .head-block h2 { color: var(--paper); }
.how-head__aside { font-size: 16px; line-height: 1.65; color: var(--paper-65); flex: 0 1 380px; margin: 0; }

.engine {
  border: 1px solid var(--ink-14); background: var(--paper);
  border-radius: var(--radius-card); padding: 36px 40px 40px; color: var(--ink);
}
.engine__label {
  display: flex; align-items: center; gap: 14px;
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--ink-50); margin-bottom: 18px;
}
.engine__label .rule { flex: 1; height: 1px; background: var(--ink-12); display: block; }
.engine-cols { display: grid; grid-template-columns: 3fr 1.15fr; gap: 24px; align-items: start; }
.col-caption {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em; margin-bottom: 6px;
}
.col-caption--act { color: var(--brand-purple); }
.col-caption--act .dash { width: 22px; height: 2px; background: var(--brand-purple); display: block; flex: none; }
.col-caption--read { color: var(--ink-60); }
.col-caption--read .dash { width: 22px; height: 0; border-top: 2px dashed var(--ink-45); display: block; flex: none; }
.col-note { font-size: 13px; line-height: 1.5; color: var(--ink-50); margin: 0 0 14px; }
.act-cols .col-note { max-width: 52ch; }
.sources { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.source {
  border: 1px solid rgba(107,78,201,0.45); background: var(--white);
  padding: 16px 12px; text-align: center; cursor: default;
  transition: border-color .15s ease, background-color .15s ease, transform .15s ease;
}
.source:hover { border-color: var(--brand-purple); background: rgba(107,78,201,0.08); transform: translateY(-1px); }
.source__name { font-size: 14px; font-weight: 600; color: var(--ink); }
.source__tools { font-family: var(--font-mono); font-size: 10px; color: var(--ink-50); margin-top: 6px; }
.read-col { border-left: 1px dashed var(--ink-14); padding-left: 24px; }
.source--read { border: 1px dashed var(--ink-45); background: transparent; }
.source--read:hover { border-color: var(--ink-72); background: rgba(26,24,48,0.04); }

.flow { width: 100%; display: block; }
.flow--in { height: 78px; animation: p-fade 0.8s ease 0.2s both; }
.flow--out { height: 60px; animation: p-fade 0.8s ease 0.35s both; }
.flow path { transition: opacity .2s ease; }

.core {
  border: 1px solid rgba(107,78,201,0.5); background: rgba(107,78,201,0.07);
  padding: 22px 26px; text-align: center;
}
.core__label {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--brand-purple); margin-bottom: 8px;
}
.core__title { font-family: var(--font-display); font-weight: 500; font-size: 22px; color: var(--ink); }
.core__note {
  font-family: var(--font-mono); font-size: 11.5px; line-height: 1.5; letter-spacing: 0.02em;
  color: var(--ink-50); margin: 12px 0 0; min-height: 34px; transition: color .2s ease;
}
.outputs { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.output { border: 1px solid var(--ink-14); background: var(--white); padding: 24px; }
.output--net { border-color: rgba(107,78,201,0.4); }
.output__tag {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--brand-purple); margin-bottom: 10px;
}
.output h4 { font-family: var(--font-display); font-weight: 500; font-size: 20px; color: var(--ink); margin: 0 0 7px; }
.output p { font-size: 14px; line-height: 1.6; color: var(--ink-72); margin: 0; }

/* Why sharper — benchmark */
.sharper-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 56px; align-items: center; }
.sharper-grid .head-block h2 { color: var(--paper); }
.sharper-grid .head-block p { color: var(--paper-72); }
.sharper-grid .head-block p.muted { color: var(--paper-45); }
.benchmark {
  background: var(--ink-raised); border: 1px solid var(--paper-12); padding: 36px 40px 30px;
}
.benchmark__label {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--paper-45);
}
.dist { position: relative; height: 108px; margin-top: 40px; }
.dist__track { position: absolute; left: 0; right: 0; top: 52px; height: 8px; background: var(--paper-12); }
.dist__fill {
  position: absolute; left: 0; top: 52px; height: 8px; width: 78%;
  background: rgba(138,111,232,0.28); transform-origin: left;
  animation: p-grow 1.1s cubic-bezier(.2,.7,.3,1) 0.3s both;
}
.dist__mark { position: absolute; top: 34px; bottom: 22px; width: 1px; background: var(--paper-30); }
.dist__mark-label {
  position: absolute; top: 0; transform: translateX(-50%);
  font-family: var(--font-mono); font-size: 11px; color: var(--paper-55); white-space: nowrap;
}
.dist__you-dot {
  position: absolute; left: 61%; top: 44px; transform: translateX(-50%);
  width: 24px; height: 24px; border-radius: 50%; background: var(--bright-purple);
  animation: p-ring 0.5s cubic-bezier(.2,.7,.3,1) 1.1s both, p-pulse 2.1s ease-out 1.6s infinite;
}
.dist__you-label {
  position: absolute; left: 61%; top: 78px; transform: translateX(-50%);
  font-family: var(--font-mono); font-size: 13px; color: var(--paper-55); white-space: nowrap;
  animation: p-fade 0.6s ease 1.3s both;
}
.benchmark__foot {
  font-family: var(--font-mono); font-size: 11px; line-height: 1.5; color: var(--paper-45);
  margin: 24px 0 0; padding-top: 18px; border-top: 1px solid var(--paper-12);
}

/* Fit */
.fit-head { max-width: 54ch; margin-bottom: 44px; }
.fit-head h2 { color: var(--ink); }
.fit-grid { display: grid; grid-template-columns: 1.12fr 0.88fr; gap: 40px; align-items: start; }
.fit-for {
  background: var(--ink); color: var(--paper); border-radius: var(--radius-card);
  padding: 36px 40px 32px; box-shadow: var(--shadow-float);
}
.fit-for h3 {
  font-family: var(--font-mono); font-size: 12px; font-weight: 500; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--bright-purple); margin: 0 0 6px;
}
.fit-for__list { display: flex; flex-direction: column; }
.fit-for__item {
  display: grid; grid-template-columns: 34px 1fr; align-items: baseline; gap: 16px;
  padding: 18px 0; border-bottom: 1px solid var(--paper-12);
}
.fit-for__item:last-child { border-bottom: none; }
.fit-for__num { font-family: var(--font-mono); font-size: 12px; color: var(--paper-45); }
.fit-for__item p { font-size: 16px; line-height: 1.5; color: var(--paper); margin: 0; }
.fit-for__foot {
  font-family: var(--font-mono); font-size: 11px; line-height: 1.5; letter-spacing: 0.04em;
  color: var(--paper-55); margin: 0; padding-top: 20px; border-top: 1px solid var(--paper-12);
}
.fit-not { border: 1px solid var(--ink-14); border-radius: var(--radius-card); padding: 36px 34px 32px; }
.fit-not h3 {
  font-family: var(--font-mono); font-size: 12px; font-weight: 500; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--ink-50); margin: 0 0 6px;
}
.fit-not__item {
  display: flex; gap: 14px; font-size: 15px; line-height: 1.55; color: var(--ink-60);
  margin: 0; padding: 16px 0; border-bottom: 1px solid var(--ink-08);
}
.fit-not__item:last-child { border-bottom: none; }
.fit-not__item .x { font-family: var(--font-mono); color: var(--ink-45); flex: none; }

/* CTA */
.cta-card {
  background: var(--paper); color: var(--ink); border-radius: var(--radius-card);
  padding: 64px 72px; display: grid; grid-template-columns: minmax(0, 1fr) 320px;
  gap: 56px; align-items: center;
}
.cta-card h2 {
  font-family: var(--font-display); font-weight: 500; font-size: 40px;
  line-height: 1.1; letter-spacing: -0.02em; margin: 0;
}
.cta-card__lede { display: flex; flex-direction: column; align-items: flex-start; gap: 20px; }
.cta-card__lede p { font-size: 17px; line-height: 1.6; color: var(--ink-72); margin: 0; }
.cta-card__act {
  display: flex; flex-direction: column; align-items: flex-start; gap: 18px;
  border-left: 1px solid var(--ink-14); padding-left: 48px;
}
.cta-card__email { font-size: 15px; font-weight: 600; color: var(--brand-purple); border-bottom: 2px solid var(--ink-14); padding-bottom: 4px; }
.cta-card__email:hover { color: var(--bright-purple); }
.cta-card__fine { font-family: var(--font-mono); font-size: 12px; line-height: 1.5; letter-spacing: 0.03em; color: var(--ink-60); margin: 10px 0 0; }

/* Footer */
.footer {
  padding: 30px var(--pad-x);
  border-top: 1px solid var(--paper-12);
  display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap;
}
.footer .brand__dot { width: 9px; height: 9px; }
.footer__meta { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em; color: var(--paper-45); }

/* =========================================================================
   Keyframes
   ========================================================================= */
@keyframes p-draw { from { stroke-dashoffset: 1600; } to { stroke-dashoffset: 0; } }
@keyframes p-fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes p-rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes p-grow { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@keyframes p-pulse {
  0% { box-shadow: 0 0 0 0 rgba(138,111,232,0.75); }
  65% { box-shadow: 0 0 0 16px rgba(138,111,232,0); }
  100% { box-shadow: 0 0 0 0 rgba(138,111,232,0); }
}
@keyframes p-ring { from { opacity: 0; transform: scale(0.3) translateX(-50%); } to { opacity: 1; transform: none; } }
@keyframes p-ring-plain { from { opacity: 0; transform: scale(0.3); } to { opacity: 1; transform: none; } }
.chart .ring { animation: p-ring-plain 0.45s cubic-bezier(.2,.7,.3,1) 1.8s both; transform-origin: 180px 132px; }

/* =========================================================================
   Responsive
   ========================================================================= */
@media (max-width: 1040px) {
  :root { --pad-x: 40px; }
  .gap-grid, .sharper-grid, .engine-cols, .cta-card { grid-template-columns: 1fr; gap: 40px; }
  .cta-card__act { border-left: none; padding-left: 0; border-top: 1px solid var(--ink-14); padding-top: 28px; }
  .fit-grid { grid-template-columns: 1fr; }
  .read-col { border-left: none; padding-left: 0; border-top: 1px dashed var(--ink-14); padding-top: 24px; }
}
@media (max-width: 720px) {
  :root { --pad-x: 22px; }
  .band { padding: 60px var(--pad-x); }
  .nav__links a:not(.btn) { display: none; }
  .hero { padding: 64px var(--pad-x) 0; }
  .hero h1 { font-size: 40px; }
  .hero__sub { font-size: 16px; }
  .head-block h2, .gap-grid h2, .cta-card h2 { font-size: 28px; }
  .chart-wrap { padding: 36px var(--pad-x) 48px; }
  .chart-card { padding: 22px 18px; }
  .metrics-row { grid-template-columns: 1fr 1fr; gap: 22px; }
  .sources { grid-template-columns: 1fr; }
  .outputs { grid-template-columns: 1fr; }
  .gap-row { grid-template-columns: 1fr; gap: 12px; }
  .cta-card { padding: 40px 28px; }
  .chart-card__head { align-items: flex-start; }
  .signal-callout { max-width: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 1ms !important; animation-delay: 0ms !important; animation-iteration-count: 1 !important; }
  html { scroll-behavior: auto; }
}