/* SCEN base: reset, typography, layout primitives, utilities. */
@layer reset, tokens, base, components, utilities;

@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  * { margin: 0; }
  html { font-size: 100%; -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
  body { min-height: 100dvh; line-height: var(--leading-body); -webkit-font-smoothing: antialiased; }
  img, picture, video, svg { display: block; max-width: 100%; }
  [hidden] { display: none !important; }
  img { height: auto; }
  input, button, textarea, select { font: inherit; color: inherit; }
  button { background: none; border: 0; cursor: pointer; }
  ul[role="list"], ol[role="list"] { list-style: none; padding: 0; }
  a { color: inherit; }
  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  }
}

@layer base {
  body { background: var(--sys-bg); color: var(--sys-fg); font-family: var(--font-body); font-size: var(--text-base); font-weight: 400; padding-bottom: var(--dock-h); }
  @media (min-width: 64em) { body { padding-bottom: 0; } }
  ::selection { background: var(--sys-accent); color: var(--sys-on-accent); }
  :focus-visible { outline: none; box-shadow: var(--focus-ring); border-radius: var(--radius-sm); }
  .on-light :focus-visible { box-shadow: 0 0 0 3px var(--sys-light), 0 0 0 6px var(--sys-on-light); }

  /* Display: Bebas for h1/h2, Space Grotesk for h3/h4 */
  h1, h2, .display { font-family: var(--font-display); font-weight: 400; line-height: var(--leading-tight); letter-spacing: 0.02em; text-transform: uppercase; text-wrap: balance; }
  h1 { font-size: var(--text-3xl); }
  h2 { font-size: var(--text-2xl); }
  h3, h4 { font-family: var(--font-head); font-weight: 600; line-height: 1.15; letter-spacing: -0.01em; text-wrap: balance; }
  h3 { font-size: var(--text-lg); }
  h4 { font-size: var(--text-md); }
  p { max-width: 62ch; text-wrap: pretty; }
  p + p { margin-top: var(--space-4); }
  strong { font-weight: 600; color: var(--sys-fg); }
  a:not([class]) { color: var(--sys-fg); text-decoration: underline; text-decoration-color: var(--sys-fg-3); text-underline-offset: 0.18em; transition: text-decoration-color var(--dur-fast); }
  a:not([class]):hover { text-decoration-color: var(--sys-accent); }
  hr { border: 0; border-top: 1px solid var(--sys-outline); margin: var(--space-6) 0; }
  small { font-size: var(--text-sm); }
  table { border-collapse: collapse; width: 100%; font-size: var(--text-sm); }
  th, td { text-align: left; padding: var(--space-3); border-bottom: 1px solid var(--sys-outline); vertical-align: top; }
  th { font-family: var(--font-head); font-size: var(--text-xs); letter-spacing: 0.14em; text-transform: uppercase; color: var(--sys-fg-3); font-weight: 600; }
  .skip-link { position: absolute; top: -100%; left: var(--gutter); z-index: 1000; padding: var(--space-2) var(--space-4); background: var(--sys-accent); color: var(--sys-on-accent); font-family: var(--font-head); font-size: var(--text-sm); font-weight: 600; text-decoration: none; }
  .skip-link:focus { top: var(--space-2); }
  main { display: block; }
}

@layer utilities {
  .container { width: min(100% - 2 * var(--gutter), var(--container)); margin-inline: auto; }
  .container--narrow { width: min(100% - 2 * var(--gutter), var(--container-narrow)); margin-inline: auto; }
  .section { padding-block: var(--section-y); position: relative; }
  .section--tight { padding-block: var(--space-7); }
  .section--flush { padding-block: 0; }
  .section--light { background: var(--sys-light); color: var(--sys-on-light); }
  .section--surface { background: var(--sys-surface); border-top: 1px solid var(--sys-outline); border-bottom: 1px solid var(--sys-outline); }
  .grain { position: relative; isolation: isolate; }
  .grain::after { content: ""; position: absolute; inset: 0; pointer-events: none; z-index: 1; opacity: 0.06; mix-blend-mode: screen; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); background-size: 200px; }

  /* eyebrow = numbered pill or plain tracked label */
  .eyebrow { display: inline-flex; width: fit-content; justify-self: start; align-items: center; gap: var(--space-3); font-family: var(--font-head); font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--sys-accent); border: 1.5px solid var(--sys-accent); border-radius: var(--radius-pill); padding: 0.3rem 0.9rem; margin-bottom: var(--space-3); }
  .eyebrow--plain { border: 0; padding: 0; color: var(--sys-fg-3); margin-bottom: 0; }
  .section--light .eyebrow { color: var(--sys-on-light); border-color: var(--sys-on-light); }
  .lede { font-size: var(--text-md); color: var(--sys-fg-2); max-width: 56ch; line-height: 1.6; }
  .section--light .lede { color: rgba(26, 24, 22, 0.75); }
  .muted { color: var(--sys-fg-3); }
  .mono { font-family: var(--font-head); font-size: var(--text-sm); letter-spacing: 0.02em; }
  .stack > * + * { margin-top: var(--space-5); }
  .stack--tight > * + * { margin-top: var(--space-3); }
  .cluster { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; }
  .grid { display: grid; gap: var(--space-5); }
  .grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr)); }
  .grid--3 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 17rem), 1fr)); }
  .grid--4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr)); }
  .visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
  .section-head { display: grid; gap: var(--space-2); margin-bottom: var(--space-6); align-items: end; }
  .section-head h2 { font-size: var(--text-2xl); }
  @media (min-width: 48em) { .section-head--split { grid-template-columns: 1fr auto; gap: var(--space-5); } }
  .accent-text { color: var(--sys-accent); }
  .stroke-text { color: transparent; -webkit-text-stroke: 2px var(--sys-fg); }
  @media (min-width: 48em) { .stroke-text { -webkit-text-stroke: 3px var(--sys-fg); } }
  .prose { max-width: var(--container-narrow); }
  .prose h2 { margin-top: var(--space-8); margin-bottom: var(--space-4); font-size: var(--text-xl); }
  .prose h2:first-child { margin-top: 0; }
  .prose h3 { margin-top: var(--space-6); margin-bottom: var(--space-3); }
  .prose ul, .prose ol { padding-left: 1.25rem; color: var(--sys-fg-2); }
  .prose li + li { margin-top: var(--space-2); }
  .prose p { color: var(--sys-fg-2); }
  .prose p strong { color: var(--sys-fg); }

  .reveal { opacity: 0; transform: translateY(22px); transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out); transition-delay: calc(var(--i, 0) * var(--stagger)); }
  .reveal.is-in { opacity: 1; transform: none; }
  @media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }
  .no-js .reveal { opacity: 1; transform: none; }
}