@layer reset, tokens, base, layout, components, utilities;

@layer layout {
  spw-site-shell {
    display: grid;
    grid-template-rows: auto 1fr auto;
    min-height: 100vh;
  }

  .site-header,
  .site-footer,
  .site-main {
    width: min(100% - clamp(1rem, 2.8vw, 3rem), var(--container-main-max, var(--container-max)));
    margin-inline: auto;
  }

  .site-header,
  .site-footer {
    width: min(100% - clamp(1rem, 2.8vw, 3rem), var(--container-chassis-max, var(--container-max)));
  }

  .site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-4);
    padding: var(--spacing-5) 0 var(--spacing-4);
  }

  .site-brand {
    display: inline-flex;
    align-items: baseline;
    gap: var(--spacing-2);
    text-decoration: none;
  }

  .site-brand__mark {
    font-family: var(--font-display);
    font-size: 1.35rem;
    letter-spacing: -0.03em;
  }

  .site-brand__meta {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    color: var(--color-muted);
  }

  .site-nav {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-3);
    font-family: var(--font-mono);
    font-size: 0.84rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
  }

  .site-nav a {
    display: inline-flex;
    align-items: center;
    min-height: 2.75rem;
    padding: 0.2rem 0.45rem;
    border-radius: var(--radius-sm);
  }

  .site-nav a[data-active='true'] {
    color: var(--color-accent);
  }

  .site-main {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--spacing-7);
    padding: var(--spacing-5) 0 var(--spacing-8);
  }

  .site-main > * {
    grid-column: 1 / -1;
  }

  .hero {
    display: grid;
    grid-template-columns: minmax(0, min(48rem, 1.25fr)) minmax(20rem, 1fr);
    gap: var(--spacing-6);
    align-items: start;
  }

  .hero__copy {
    display: grid;
    gap: var(--spacing-4);
  }

  .hero__title {
    font-size: clamp(2.6rem, 7vw, 5rem);
  }

  .hero__tagline {
    font-size: clamp(1.1rem, 2.2vw, 1.4rem);
    color: var(--color-muted);
    max-width: 40ch;
  }

  .hero__subline {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: color-mix(in srgb, var(--color-ink) 70%, var(--color-accent));
  }

  .page-section {
    display: grid;
    gap: var(--spacing-4);
  }

  .page-section__eyebrow {
    font-family: var(--font-mono);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-size: 0.75rem;
    color: var(--color-muted);
  }

  .selected-work-list,
  .project-grid,
  .notes-stream,
  .chapter-grid {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: var(--spacing-4);
  }

  .selected-work-list {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 14.5rem), 1fr));
  }

  .project-grid,
  .notes-stream,
  .chapter-grid {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  }

  .site-footer {
    padding: var(--spacing-6) 0 var(--spacing-7);
    border-top: 1px solid var(--color-border);
    display: grid;
    gap: var(--spacing-2);
    color: var(--color-muted);
    font-family: var(--font-mono);
    font-size: 0.82rem;
  }

  .site-footer a {
    font-family: inherit;
  }

  .surface-panel,
  .work-preview,
  .project-card,
  .note-card {
    content-visibility: auto;
    contain-intrinsic-size: 320px;
  }

  body[data-page='home'] .site-main > [data-layout-region='hero'] {
    grid-column: 1 / -1;
  }

  body[data-page='home'] .site-main > [data-layout-region='selected-work'] {
    grid-column: 1 / span 6;
  }

  body[data-page='home'] .site-main > [data-layout-region='shader-field'] {
    grid-column: 1 / -1;
  }

  body[data-page='home'] .site-main > [data-layout-region='syntax-lab'] {
    grid-column: 7 / -1;
  }

  body[data-page='home'] .site-main > [data-layout-region='chapters'] {
    grid-column: 1 / span 7;
  }

  body[data-page='home'] .site-main > [data-layout-region='ecology'] {
    grid-column: 8 / -1;
  }

  body[data-page='home'] .site-main > [data-layout-region='seed-atlas'] {
    grid-column: 1 / span 8;
  }

  body[data-page='home'] .site-main > [data-layout-region='contact'] {
    grid-column: 9 / -1;
  }

  body[data-page='work'] .site-main > [data-layout-region='intro'],
  body[data-page='notes'] .site-main > [data-layout-region='intro'] {
    grid-column: 1 / span 4;
    align-content: start;
  }

  body[data-page='work'] .site-main > [data-layout-region='stream'],
  body[data-page='notes'] .site-main > [data-layout-region='stream'] {
    grid-column: 5 / -1;
  }

  body[data-page='notes'] .site-main > [data-layout-region='seed-atlas'] {
    grid-column: 1 / -1;
  }

  .not-found {
    display: grid;
    gap: var(--spacing-4);
    max-width: 48ch;
    margin: var(--spacing-8) auto;
    text-align: center;
  }

  html[data-spw-layout-view='focus'] {
    --container-main-max: 60rem;
    --container-chassis-max: 60rem;
  }

  html[data-spw-layout-view='grid'] .hero {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  html[data-spw-layout-view='stack'] .hero {
    grid-template-columns: 1fr;
  }

  html[data-spw-layout-view='focus'] .selected-work-list,
  html[data-spw-layout-view='focus'] .project-grid,
  html[data-spw-layout-view='focus'] .notes-stream,
  html[data-spw-layout-view='focus'] .chapter-grid {
    grid-template-columns: 1fr;
  }

  html[data-spw-layout-view='grid'] .selected-work-list {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr));
  }

  html[data-spw-layout-view='grid'] .project-grid,
  html[data-spw-layout-view='grid'] .notes-stream,
  html[data-spw-layout-view='grid'] .chapter-grid {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
  }

  @media (max-width: 900px) {
    .site-main {
      grid-template-columns: 1fr;
    }

    .hero,
    .selected-work-list,
    .project-grid,
    .notes-stream,
    .chapter-grid {
      grid-template-columns: 1fr;
    }

    .site-header {
      flex-direction: column;
      align-items: flex-start;
    }

    .site-main {
      gap: var(--spacing-6);
    }

    .site-nav {
      flex-wrap: wrap;
      gap: var(--spacing-2);
    }
  }

  @media (max-width: 1240px) {
    body[data-page='home'] .site-main > [data-layout-region='selected-work'],
    body[data-page='home'] .site-main > [data-layout-region='chapters'],
    body[data-page='home'] .site-main > [data-layout-region='seed-atlas'] {
      grid-column: 1 / span 7;
    }

    body[data-page='home'] .site-main > [data-layout-region='syntax-lab'],
    body[data-page='home'] .site-main > [data-layout-region='ecology'],
    body[data-page='home'] .site-main > [data-layout-region='contact'] {
      grid-column: 8 / -1;
    }

    body[data-page='work'] .site-main > [data-layout-region='intro'],
    body[data-page='notes'] .site-main > [data-layout-region='intro'] {
      grid-column: 1 / -1;
    }

    body[data-page='work'] .site-main > [data-layout-region='stream'],
    body[data-page='notes'] .site-main > [data-layout-region='stream'] {
      grid-column: 1 / -1;
    }
  }

  @media (max-width: 900px) {
    body[data-page] .site-main > [data-layout-region] {
      grid-column: 1 / -1;
    }
  }
}

@layer utilities {
  .surface-panel {
    background: color-mix(in srgb, var(--color-surface) 90%, white 10%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
    padding: var(--spacing-5);
  }
}