/* ============================================================
   base.css — reset, typography, layout primitives
   Mirrors the source's global defaults: .grid (12 cols),
   .shell (1920px max), .eyebrow, title scale and reveal.
   ============================================================ */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  letter-spacing: 0.02em;      /* source: html { letter-spacing: .02em } */
  overflow-y: scroll;
}

body {
  min-height: 100svh;
  background: var(--bg);
  color: var(--text);
  font-size: var(--fs-md);
  line-height: 1.5;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.is-loading {
  overflow: hidden;
  overscroll-behavior: none;
}

img,
svg,
video,
canvas {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  border: 0;
  background: none;
  cursor: pointer;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  font-weight: 700;
  line-height: var(--lh-title);
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

::selection {
  background: var(--orange);
  color: var(--white);
}

:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 4px;
  border-radius: 4px;
}

/* --- Layout ------------------------------------------------- */

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--pad);
}

/* 12-column grid, exactly like the source .grid */
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--sp-md);
  width: 100%;
}
@media (min-width: 840px) {
  .grid-12 { gap: var(--sp-xl); }
}

.section {
  position: relative;
  padding-block: clamp(72px, 9vw, 140px);
}

.section--tight {
  padding-block: clamp(56px, 7vw, 96px);
}

section[id] {
  scroll-margin-top: calc(var(--header-h) + 24px);
}

/* --- Type primitives --------------------------------------- */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-xxs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
  opacity: 0.55;
}
.eyebrow--light { color: var(--cyan-text-2); }
.eyebrow--accent { color: var(--orange); }

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--sp-lg);
  margin-bottom: clamp(32px, 5vw, 64px);
}

.section__title {
  margin-top: 18px;
  font-size: clamp(40px, 6vw, 88px);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1;
}

.section__lead {
  max-width: 52ch;
  margin-top: 20px;
  color: var(--ink-2);
  font-size: clamp(16px, 1.3vw, 18px);
  line-height: 1.6;
}

.mono {
  font-family: var(--font-mono);
  font-size: var(--fs-xxs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: var(--z-cursor);
  padding: 12px 18px;
  border-radius: var(--radius-pill);
  background: var(--ink);
  color: var(--beige-400);
  font-weight: 700;
  transform: translateY(-160%);
  transition: transform var(--dur) var(--ease-smooth);
}
.skip-link:focus-visible {
  transform: translateY(0);
  outline-color: var(--beige-400);
}

/* --- Reveal on scroll -------------------------------------- */
/* JS adds .is-visible through IntersectionObserver. */

[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.8s var(--ease-smooth),
    transform 0.8s var(--ease-smooth);
  transition-delay: calc(var(--i, 0) * 70ms);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

[data-reveal="scale"] {
  transform: scale(0.96);
}
[data-reveal="scale"].is-visible {
  transform: none;
}

/* --- Hero entrance (pure CSS, gated by body.is-loading) ---- */

.hero__reveal {
  opacity: 0;
  transform: translateY(24px);
}
body:not(.is-loading) .hero__reveal {
  animation: hero-in 0.9s var(--ease-smooth) forwards;
  animation-delay: calc(0.45s + var(--i, 0) * 0.09s);
}

/* Title lines: overflow-hidden mask + translateY rise */
.line {
  display: block;
  overflow: hidden;
}
.line > span {
  display: block;
  transform: translateY(110%);
}
body:not(.is-loading) .line > span {
  animation: line-rise 1s var(--ease-smooth) forwards;
  animation-delay: calc(0.2s + var(--i, 0) * 0.08s);
}

@keyframes line-rise {
  to { transform: translateY(0); }
}

@keyframes hero-in {
  to {
    opacity: 1;
    transform: none;
  }
}

/* --- Reduced motion --------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  [data-reveal],
  .hero__reveal,
  .line > span {
    opacity: 1 !important;
    transform: none !important;
  }
}