/* =========================================================
   Growth Science — base / tokens
   Design source: Figma "Home v4 — HLH layouts, refined" (292:2), 1512px frame
   ========================================================= */

/* Suisse Int'l is a licensed font. Drop the client's licensed files into
   /assets/fonts/ with these names and they will be picked up automatically. */
@font-face { font-family: "Suisse Intl"; src: url("../assets/fonts/SuisseIntl-Regular.woff2") format("woff2"); font-weight: 400; font-display: swap; }

:root {
  /* colour */
  --black: #000;
  --white: #fff;
  --blue-1: #6ba0ec;
  --blue-2: #a3c4ea;
  --blue: #6ba0ec;
  --grad-blue: linear-gradient(90deg, var(--blue-1), var(--blue-2));
  --w-85: rgba(255,255,255,.85);
  --w-70: rgba(255,255,255,.70);
  --w-50: rgba(255,255,255,.50);
  --w-45: rgba(255,255,255,.45);
  --w-40: rgba(255,255,255,.40);
  --w-25: rgba(255,255,255,.25);
  --w-15: rgba(255,255,255,.15);
  --w-10: rgba(255,255,255,.10);
  --b-45: rgba(0,0,0,.45);
  --b-40: rgba(0,0,0,.40);
  --b-25: rgba(0,0,0,.25);
  --b-15: rgba(0,0,0,.15);
  --b-10: rgba(0,0,0,.10);

  /* type */
  --font-sans: "Suisse Intl", "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  /* layout */
  --page-max: 1512px;
  --gutter: 60px;
  --section-pad: 120px;
  --radius: 8px;
  --ease: cubic-bezier(.2,.7,.2,1);
}
@media (max-width: 1100px) { :root { --gutter: 40px; --section-pad: 96px; } }
@media (max-width: 720px)  { :root { --gutter: 20px; --section-pad: 72px; } }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 52px; }
body {
  margin: 0; background: var(--black); color: var(--white);
  font-family: var(--font-sans); font-size: 16px; line-height: 1.3; letter-spacing: -0.02em;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
}
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; }
h1, h2, h3, h4, h5, h6, p, ul, ol, figure, blockquote { margin: 0; padding: 0; }
h1, h2, h3, h4, h5, h6, strong, b, th { font-weight: 400; }
ul, ol { list-style: none; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- sections / containers ---------- */
.section { position: relative; padding-block: var(--section-pad); overflow: clip; }
.section--dark  { background: var(--black); color: var(--white); --muted: var(--w-45); --faint: var(--w-25); --rule: var(--w-10); }
.section--light { background: var(--white); color: var(--black); --muted: var(--b-45); --faint: var(--b-25); --rule: var(--b-10); }
.container { width: 100%; max-width: var(--page-max); margin-inline: auto; padding-inline: var(--gutter); }

/* Section label: "01 Our POV" + full-width rule (Figma: Geist Mono 16, rule 60px under top of label) */
.eyebrow { display: flex; gap: 0; font-family: var(--font-mono); font-size: 16px; line-height: 1; letter-spacing: -0.02em; padding-bottom: 16px; border-bottom: 1px solid var(--rule); margin-bottom: 60px; }
.eyebrow__num { color: var(--faint); min-width: 40px; }

/* ---------- type scale (Figma values) ---------- */
.t-display { font-size: clamp(36px, 4.4vw, 66px); line-height: 1; letter-spacing: -0.03em; }
.t-h1  { font-size: clamp(34px, 3.5vw, 52px); line-height: 1.1; letter-spacing: -0.03em; }
.t-h2  { font-size: clamp(30px, 2.95vw, 44px); line-height: 1.1; letter-spacing: -0.03em; }
.t-h3  { font-size: clamp(26px, 2.7vw, 40px); line-height: 1.1; letter-spacing: -0.03em; }
.t-h4  { font-size: clamp(24px, 2.4vw, 36px); line-height: 1.1; letter-spacing: -0.03em; }
.t-h5  { font-size: clamp(22px, 2vw, 30px);   line-height: 1.1; letter-spacing: -0.03em; }
.t-lead{ font-size: clamp(18px, 1.46vw, 22px); line-height: 1.2; letter-spacing: -0.02em; }
.t-l   { font-size: 20px; line-height: 1.3; }
.t-m   { font-size: 18px; line-height: 1.3; }
.t-body{ font-size: 16px; line-height: 1.3; }
.t-s   { font-size: 14px; line-height: 1.3; }
.t-xs  { font-size: 12px; line-height: 1; }
.t-mono{ font-family: var(--font-mono); font-size: 16px; line-height: 1; }
.muted { color: var(--muted); }
.faint { color: var(--faint); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px; height: 46px; padding: 0 18px 0 22px;
  border-radius: 999px; background: var(--grad-blue); color: var(--black); font-size: 16px; line-height: 1; white-space: nowrap;
  transition: transform .25s var(--ease), background-color .25s var(--ease);
}
.btn:hover { transform: translateY(-1px); filter: brightness(1.06); }
.btn svg, .btn img { width: 16px; height: 16px; transition: transform .25s var(--ease); }
.btn:hover svg, .btn:hover img { transform: translateX(3px); }
.btn--sm { height: 38px; padding: 0 16px; font-size: 14px; }
.btn--ghost { background: transparent; color: inherit; box-shadow: inset 0 0 0 1px var(--rule); }
.btn--ghost:hover { background: var(--w-10); }

/* ---------- chips (hero loop, video band, CTA) ---------- */
.chip {
  display: inline-flex; align-items: center; gap: 6px; height: 40px; padding: 0 14px 0 10px;
  border-radius: 999px; background: rgba(255,255,255,.1); backdrop-filter: blur(5.8px); -webkit-backdrop-filter: blur(5.8px); color: var(--white); font-size: 16px; line-height: 1; white-space: nowrap;
}
.chip img, .chip svg { width: 20px; height: 20px; flex: none; }
.chip--active { background: linear-gradient(104.5deg, var(--blue-2), var(--blue-1)); color: var(--black); }

/* ---------- reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}

/* buttons that also reveal: keep hover lift once revealed */
.btn.reveal.is-in:hover { transform: translateY(-1px); }