/* Stratum — Earth & Ocean Film Archive
   Design system "Field Journal & Archival Canvas" (Stitch project 9741261689959029000).
   Flat archival surface: no shadows, no gradients, 1px hairlines, 2px radius. */

:root {
  --paper: #F3EFE7;      /* Chalk Paper — page background */
  --sand: #E6DFD2;       /* Wet Sand — secondary surface */
  --basalt: #1E1C19;     /* text primary */
  --slate: #5C5852;      /* text secondary */
  --line: #CFC6B6;       /* Sediment Line — hairlines, image frames */
  --teal: #1F6F78;       /* Tide Teal — the single accent */
  --teal-hover: #17535A;
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: "Geist", system-ui, -apple-system, "Segoe UI", sans-serif;
  --max: 1200px;
  --gutter: 1.5rem;
}
@media (min-width: 900px) { :root { --gutter: 3rem; } }

*, *::before, *::after { box-sizing: border-box; }
html { background: var(--paper); -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--basalt);
  font-family: var(--sans); font-size: 17px; line-height: 1.6;
  font-feature-settings: "tnum" 1;
}
img, video { display: block; max-width: 100%; height: auto; }
a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
h1, h2, h3 { font-family: var(--serif); font-weight: 500; margin: 0; }
h1 { font-size: 44px; line-height: 52px; letter-spacing: -0.02em; }
h2 { font-size: 32px; line-height: 40px; letter-spacing: -0.015em; }
h3 { font-size: 20px; line-height: 28px; }
@media (max-width: 700px) {
  h1 { font-size: 32px; line-height: 40px; letter-spacing: -0.015em; }
  h2 { font-size: 26px; line-height: 34px; letter-spacing: -0.01em; }
}
p { margin: 0 0 1rem; max-width: 65ch; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.rule { border: 0; border-top: 1px solid var(--line); margin: 0; }
.label { font-family: var(--sans); font-size: 12px; font-weight: 500; line-height: 16px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--slate); }
.muted { color: var(--slate); }
.frame { display: block; border: 1px solid var(--line); border-radius: 2px; overflow: hidden; background: var(--sand); }
.frame img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }

/* Header */
.site-header { border-bottom: 1px solid var(--line); background: var(--paper); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.wordmark { font-family: var(--serif); font-size: 24px; font-weight: 500; letter-spacing: -0.01em; color: var(--basalt); }
.wordmark:hover { text-decoration: none; }
.nav { display: flex; gap: 1.75rem; }
.nav a { font-size: 15px; font-weight: 500; color: var(--basalt); }
.nav a[aria-current="page"] { color: var(--teal); }
@media (max-width: 700px) { .nav { gap: 1rem; } .nav a { font-size: 14px; } .wordmark { font-size: 21px; } }

/* Sections */
.section { padding: 4rem 0; }
@media (min-width: 900px) { .section { padding: 6rem 0; } }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin-bottom: 2rem; }
.section-head a { font-size: 15px; font-weight: 500; }

/* Hero */
.hero { padding: 2.5rem 0 4rem; }
.hero .frame img { aspect-ratio: 21 / 9; }
.hero-text { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 2rem; padding-top: 2.5rem; }
.hero-text .label { margin-bottom: 0.75rem; }
.hero-text p { margin: 1.25rem 0 1.75rem; }
.hero-credit { align-self: end; font-size: 13px; line-height: 20px; color: var(--slate); max-width: 34ch; }
@media (max-width: 800px) { .hero-text { grid-template-columns: 1fr; } .hero .frame img { aspect-ratio: 16 / 9; } .hero-credit { max-width: none; } }

/* Buttons */
.btn { display: inline-block; font-family: var(--sans); font-size: 15px; font-weight: 500; line-height: 1; padding: 0.75rem 1.5rem; border-radius: 2px; border: 1px solid transparent; cursor: pointer; }
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--teal); color: var(--paper); }
.btn-primary:hover { background: var(--teal-hover); }
.btn-primary:active { background: #124046; }
.btn-outline { background: transparent; color: var(--basalt); border-color: var(--line); }
.btn-outline:hover { background: var(--sand); }

/* Collections (asymmetric: wide / narrow) */
.collections { display: grid; grid-template-columns: repeat(12, 1fr); gap: 2rem 1.5rem; }
.collection { grid-column: span 7; }
.collection.narrow { grid-column: span 5; }
.collection:nth-child(3) { grid-column: span 5; }
.collection:nth-child(4) { grid-column: span 7; }
.collection .frame img { aspect-ratio: 3 / 2; }
.collection.narrow .frame img, .collection:nth-child(3) .frame img { aspect-ratio: 4 / 3; }
.collection h3 { margin-top: 0.75rem; font-size: 24px; line-height: 32px; letter-spacing: -0.01em; }
.collection h3 a { color: var(--basalt); }
.collection p { margin: 0.25rem 0 0; font-size: 15px; line-height: 24px; color: var(--slate); }
@media (max-width: 800px) { .collection, .collection.narrow, .collection:nth-child(3), .collection:nth-child(4) { grid-column: span 12; } }

/* Film tiles */
.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.5rem 1.5rem; }
.tiles.two { grid-template-columns: repeat(2, 1fr); }
.tile .frame { transition: border-color 150ms; }
.tile:hover .frame { border-color: var(--basalt); }
.tile h3 { margin-top: 0.75rem; }
.tile h3 a { color: var(--basalt); }
.tile:hover h3 a { color: var(--teal); text-decoration: none; }
.tile .label { margin-top: 0.35rem; }
@media (max-width: 900px) { .tiles, .tiles.two { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .tiles, .tiles.two { grid-template-columns: 1fr; } }

/* Collection page intro */
.intro { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 2.5rem; align-items: start; padding-top: 2.5rem; padding-bottom: 3rem; }
.intro .label { margin-bottom: 0.75rem; }
.intro h1 { margin-bottom: 1.25rem; }
.intro .credit { font-size: 13px; line-height: 20px; color: var(--slate); margin-top: 0.5rem; }
@media (max-width: 800px) { .intro { grid-template-columns: 1fr; } }

/* Watch page */
.watch-head { padding-top: 2.5rem; padding-bottom: 1.5rem; }
.watch-head .label { margin-bottom: 0.75rem; }
.player-band { background: var(--sand); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 2rem 0; }
.player-band video { width: 100%; aspect-ratio: 16 / 9; background: var(--basalt); border: 1px solid var(--line); border-radius: 2px; }
.watch-body { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 3rem; padding-top: 2.5rem; padding-bottom: 4rem; }
.meta { border-top: 1px solid var(--line); font-size: 15px; line-height: 24px; }
.meta div { display: grid; grid-template-columns: 9rem 1fr; gap: 1rem; padding: 0.875rem 0; border-bottom: 1px solid var(--line); }
.meta dt { color: var(--slate); font-size: 12px; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; line-height: 24px; }
.meta dd { margin: 0; }
.meta .btn { margin-top: 1.25rem; }
.watch-aside .btn { margin-top: 1.5rem; }
.watch-aside .note { font-size: 13px; line-height: 20px; color: var(--slate); margin-top: 0.75rem; }
@media (max-width: 800px) { .watch-body { grid-template-columns: 1fr; gap: 2rem; } }

/* Prose pages */
.prose { padding-top: 2.5rem; padding-bottom: 4rem; }
.prose > * { max-width: 68ch; }
.prose table, .prose h1, .prose .label { max-width: none; }
.prose h1 { margin-bottom: 1.5rem; }
.prose h2 { font-size: 24px; line-height: 32px; margin: 2.5rem 0 0.75rem; }
.prose figure { margin: 2rem 0; max-width: none; }
.prose figcaption { font-size: 13px; line-height: 20px; color: var(--slate); margin-top: 0.5rem; }

/* Credits table */
.credits { width: 100%; border-collapse: collapse; font-size: 15px; line-height: 24px; margin-top: 1.5rem; }
.credits th { text-align: left; font-size: 12px; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--slate); padding: 0 1rem 0.875rem 0; border-bottom: 1px solid var(--line); }
.credits td { vertical-align: top; padding: 0.875rem 1rem 0.875rem 0; border-bottom: 1px solid var(--line); }
.credits td:last-child, .credits th:last-child { padding-right: 0; }
.credits .id { font-variant-numeric: tabular-nums; white-space: nowrap; color: var(--slate); }
@media (max-width: 700px) { .credits thead { display: none; } .credits tr { display: block; padding: 0.875rem 0; border-bottom: 1px solid var(--line); } .credits td { display: block; border: 0; padding: 0.125rem 0; } }

/* Footer */
.site-footer { background: var(--sand); border-top: 1px solid var(--line); padding: 3rem 0; font-size: 15px; line-height: 24px; color: var(--slate); }
.site-footer .wrap { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 2rem; }
.site-footer p { margin: 0; max-width: 48ch; }
.site-footer .right { text-align: right; }
.site-footer .wordmark { font-size: 20px; display: block; margin-bottom: 0.5rem; }
@media (max-width: 700px) { .site-footer .wrap { grid-template-columns: 1fr; } .site-footer .right { text-align: left; } }

/* Editorial frame: series, "what to look for" (2026-10-07) */
.hero-text .text-link { display: inline-block; margin-left: 1.25rem; font-size: 15px; font-weight: 500; }
@media (max-width: 480px) { .hero-text .text-link { display: block; margin: 1rem 0 0; } }
.section-lede { color: var(--slate); margin: -1rem 0 2.5rem; }
.series-stack { display: grid; }
.series-block { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: 1.5rem 3rem; padding: 3rem 0; border-top: 1px solid var(--line); }
.series-block:first-child { border-top: 0; padding-top: 0; }
.series-block:last-child { padding-bottom: 0; }
.series-text .label { margin-bottom: 0.75rem; }
.series-text h2, .series-text h3 { font-size: 26px; line-height: 34px; letter-spacing: -0.01em; margin-bottom: 0.75rem; }
.series-text h2 a, .series-text h3 a { color: var(--basalt); }
.series-text p { font-size: 15px; line-height: 24px; color: var(--slate); }
.series-text > a { font-size: 15px; font-weight: 500; }
.series-block .tiles { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.75rem 1.25rem; }
.series-block .tile h3 { font-size: 17px; line-height: 24px; }
@media (max-width: 900px) { .series-block { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .series-block .tiles { grid-template-columns: 1fr; } }
.intro .dek { font-family: var(--serif); font-size: 20px; line-height: 30px; color: var(--slate); }
.intro-text { align-items: end; }
.intro .btn { margin-top: 0.5rem; }
.look { border-top: 1px solid var(--line); padding-top: 1rem; margin: 1.75rem 0; }
.look .label, .in-series .label { margin-bottom: 0.5rem; }
.look p { font-family: var(--serif); font-size: 19px; line-height: 29px; margin: 0; }
.in-series { margin: 0 0 2rem; }
.in-series ul { list-style: none; margin: 0; padding: 0; font-size: 15px; line-height: 24px; }
.in-series li { padding: 0.25rem 0; }
.prose ul { padding-left: 1.25rem; }
.prose li { margin-bottom: 0.5rem; }
@media (max-width: 600px) {
  .site-header .wrap { flex-wrap: wrap; height: auto; padding-top: 0.875rem; padding-bottom: 0.875rem; row-gap: 0.375rem; }
  .nav { flex-wrap: wrap; gap: 0.25rem 1rem; }
}
@media (max-width: 700px) { .credits .id { white-space: normal; overflow-wrap: anywhere; } }