/* Path: caturus-expansion-site/public/css/site.css */
:root {
  /* Placeholder palette: swap for the approved Caturus brand tokens before launch. */
  --navy: #0b2545;
  --blue: #1f5fa8;
  --cyan: #2ab7ca;
  --green: #2e8b57;
  --sand: #f4f6f9;
  --ink: #1c2530;
  --muted: #5b6b7c;
  --line: #e3e8ef;
  --white: #ffffff;
  --red: #b3261e;
  --radius: 10px;
  --shadow: 0 6px 20px rgba(11, 37, 69, 0.08);
  --maxw: 1140px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.55;
}
a { color: var(--blue); }
img { max-width: 100%; display: block; }
.container { width: min(var(--maxw), 100% - 2rem); margin-inline: auto; }

.skip-link { position: absolute; left: -999px; top: 0; background: var(--cyan); color: var(--navy); padding: 0.5rem 1rem; z-index: 100; }
.skip-link:focus { left: 0.5rem; top: 0.5rem; }

/* One focus indicator everywhere (WCAG 2.4.7, 2.4.11): blue on the light surfaces, cyan on the navy header, heroes, and footer where blue would sit near 3:1. */
:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; }
.site-header :focus-visible, .hero :focus-visible, .site-footer :focus-visible { outline-color: var(--cyan); }

/* Screen-reader-only text: link hints ("opens in a new tab", "PDF") and structural headings the visual design omits. */
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; border: 0; }

.site-header { position: sticky; top: 0; z-index: 50; background: var(--navy); color: var(--white); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 64px; }
.brand { color: var(--white); text-decoration: none; font-weight: 700; letter-spacing: 0.02em; font-size: 1.05rem; }
.brand span { font-weight: 400; opacity: 0.85; }
.site-nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 0.25rem; }
.site-nav a { color: var(--white); text-decoration: none; padding: 0.55rem 0.9rem; border-radius: 6px; font-weight: 500; }
.site-nav a:hover, .site-nav a:focus-visible { background: rgba(255, 255, 255, 0.12); }
.site-nav a[aria-current="page"] { background: var(--blue); }
.nav-toggle { display: none; background: transparent; color: var(--white); border: 1px solid rgba(255, 255, 255, 0.4); border-radius: 6px; padding: 0.45rem 0.8rem; font: inherit; cursor: pointer; }

/* One hero height on every page; the copy sits in the upper-left corner of the hero, anchored to the viewport edge rather than the centered site grid, so it stays clear of the logo tanks at the frame's center-left. */
.hero {
  position: relative;
  overflow: hidden;
  color: var(--white);
  background: var(--navy);
  min-height: clamp(520px, 45vw, 900px);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: clamp(1.5rem, 3vw, 2.75rem) 0 clamp(2rem, 5vw, 4rem);
}
/* Photo layer: the full 16:9 frame at hero height (tree line to open water), centered, sides feathered into the navy. A full-width cover crop showed only the middle band on wide screens; the frame now stays whole and the navy shows beyond the feathered edges instead. */
.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  height: 100%;
  aspect-ratio: 16 / 9;
  transform: translateX(-50%);
  background: url("/assets/hero.jpg") center / cover no-repeat;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 22%, #000 78%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 22%, #000 78%, transparent);
}
/* Community page: the regional location map replaces the tanker photo. The map is 4:3 (1568x1176), so the frame takes the map's ratio and stays whole at hero height instead of cover-cropping the coast and the site star out of the 16:9 box. Same specificity as .hero::before, later in source, so it wins on that page only. */
.hero-community::before {
  aspect-ratio: 4 / 3;
  background-image: url("/assets/cwlng-site-location-regional.jpg");
}
/* Operations page: the Phase 2 expansion render replaces the tanker still. Same 16:9 frame, feathering, and scrim as the shared hero; only the image changes. */
.hero-operations::before {
  background-image: url("/assets/phase_2.jpg");
}
/* Contact page: contact.jpg replaces the tanker still. Same 16:9 frame, feathering, and scrim as the shared hero; only the image changes. */
.hero-contact::before {
  background-image: url("/assets/contact.jpg");
}
/* Top-left-weighted scrim, lighter overall: darkest behind the copy in the upper left, thinning to a faint tint over the tanker and water at the bottom right. */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11, 37, 69, 0.62) 0%, rgba(11, 37, 69, 0.42) 30%, rgba(11, 37, 69, 0.16) 65%, rgba(11, 37, 69, 0.08) 100%);
}
/* The map is a light grayscale image, so the photo-tuned scrim leaves white copy near 3:1 at its 30% stop. Deeper stops behind the copy only; the coast and the site star at the bottom stay under a faint tint. */
.hero-community::after {
  background: linear-gradient(135deg, rgba(11, 37, 69, 0.86) 0%, rgba(11, 37, 69, 0.7) 30%, rgba(11, 37, 69, 0.22) 65%, rgba(11, 37, 69, 0.1) 100%);
}
/* The copy leaves the centered site grid: a full-width row with a small viewport gutter, copy in the left 36rem, an empty second column keeping it from spreading across the frame. */
.hero > .container { position: relative; z-index: 1; width: auto; margin-inline: 0; padding-inline: clamp(1.25rem, 3vw, 3.5rem); display: grid; grid-template-columns: minmax(0, 36rem) minmax(0, 1fr); }
.hero > .container > * { grid-column: 1; }
.hero h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); line-height: 1.1; margin: 0 0 0.75rem; max-width: 20ch; text-shadow: 0 2px 8px rgba(0, 0, 0, 0.55); }
.hero .lede { font-size: clamp(1.05rem, 1.8vw, 1.3rem); max-width: 62ch; margin: 0 0 1.75rem; opacity: 0.95; text-shadow: 0 1px 5px rgba(0, 0, 0, 0.55); }
.hero .actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }
/* Home hero only: the three calls to action stack down the left edge under the lede at one width (the widest label sets it). The other heroes keep the wrapped row above. */
.home-hero .actions { flex-direction: column; align-items: stretch; width: max-content; max-width: 100%; }
.home-hero .actions .btn { text-align: center; }
.hero .kicker { color: var(--cyan); }

.kicker { text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.78rem; font-weight: 700; color: var(--blue); margin: 0 0 0.35rem; }

.btn { display: inline-block; padding: 0.7rem 1.25rem; border-radius: 8px; text-decoration: none; font-weight: 600; border: 2px solid transparent; }
.btn-primary { background: var(--cyan); color: var(--navy); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-outline { border-color: var(--white); color: var(--white); }
.btn-outline:hover { background: rgba(255, 255, 255, 0.12); }
.btn-navy { background: var(--navy); color: var(--white); }
.btn-navy:hover { background: var(--blue); }

.section { padding: clamp(2.5rem, 6vw, 4.5rem) 0; }
.section-alt { background: var(--sand); }
.section h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); margin: 0 0 0.5rem; color: var(--navy); }
.section .intro { max-width: 70ch; color: var(--muted); margin: 0 0 2rem; }
.two-col { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; align-items: start; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 1rem; }
.stat { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.25rem; box-shadow: var(--shadow); }
.stat-value { display: block; font-size: 2rem; font-weight: 800; color: var(--navy); line-height: 1.1; }
.stat-value[data-placeholder] { color: var(--muted); }
/* Qualifier above a stat ("Up to", "Estimated") so the number keeps its size in the narrow cell instead of wrapping. */
.stat-value small { display: block; font-size: 0.42em; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); line-height: 1.2; margin-bottom: 0.2rem; }
.stat-label { display: block; margin-top: 0.35rem; font-size: 0.9rem; color: var(--muted); }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.25rem; }
.card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; box-shadow: var(--shadow); }
.card h3 { margin: 0 0 0.5rem; color: var(--navy); font-size: 1.15rem; }
.card p { margin: 0 0 0.5rem; color: var(--muted); }
.card p:last-child { margin-bottom: 0; }
.card-accent { border-top: 4px solid var(--cyan); }
.card-emergency { border-top: 4px solid var(--red); }
.card .big { font-size: 1.6rem; font-weight: 800; color: var(--navy); text-decoration: none; display: inline-block; margin: 0.25rem 0 0.5rem; }
.card-emergency .big { color: var(--red); }

.checklist { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.75rem; }
.checklist li { padding-left: 1.75rem; position: relative; }
.checklist li::before { content: ""; position: absolute; left: 0; top: 0.45em; width: 0.9rem; height: 0.9rem; border-radius: 50%; background: var(--green); }

.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; background: var(--white); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
table.data th, table.data td { text-align: left; padding: 0.8rem 1rem; border-bottom: 1px solid var(--line); }
table.data th { background: var(--navy); color: var(--white); font-weight: 600; }
table.data tr:last-child td { border-bottom: 0; }

.timeline { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; }
.timeline li { background: var(--white); border-left: 4px solid var(--blue); border-radius: 6px; padding: 1rem; box-shadow: var(--shadow); }
.timeline time { display: block; font-weight: 700; color: var(--blue); font-size: 0.9rem; margin-bottom: 0.25rem; }

.map-frame { width: 100%; aspect-ratio: 16 / 10; border: 0; border-radius: var(--radius); box-shadow: var(--shadow); background: var(--sand); }
.map-caption, .note { font-size: 0.85rem; color: var(--muted); margin-top: 0.5rem; }

.figure-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; margin-top: 2.5rem; }
.figure { margin: 0; }
.figure a { display: block; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); background: var(--sand); }
.figure img { width: 100%; height: auto; }
.figure figcaption { font-size: 0.85rem; color: var(--muted); margin-top: 0.5rem; }

.site-footer { background: var(--navy); color: rgba(255, 255, 255, 0.85); padding: 2rem 0; margin-top: 2rem; font-size: 0.9rem; }
.site-footer .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; align-items: center; }
.site-footer a { color: var(--white); }
.site-footer p { margin: 0; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 0.35rem 1.25rem; }

.page-404 main { padding: 4rem 0; }

/* Privacy, Terms, Accessibility: a compact solid-navy banner (no photo layer, no scrim) and one reading column. */
.hero-legal { min-height: 0; }
.hero-legal::before { display: none; }
.hero-legal::after { display: none; }
.legal { max-width: 76ch; }
.legal h2 { font-size: clamp(1.25rem, 2.2vw, 1.5rem); margin: 2.25rem 0 0.5rem; }
.legal h3 { font-size: 1.05rem; color: var(--navy); margin: 1.5rem 0 0.35rem; }
.legal p, .legal li { margin: 0 0 0.75rem; }
.legal ul, .legal ol { padding-left: 1.4rem; margin: 0 0 1rem; }
.legal .meta { color: var(--muted); font-size: 0.9rem; }
.legal .draft { border-left: 4px solid var(--cyan); background: var(--sand); padding: 0.75rem 1rem; margin: 0 0 1.5rem; }
.legal .draft p { margin: 0; }

@media (max-width: 760px) {
  /* The collapsed menu exists only when site.js has stamped html.js; without script the links stay in flow so the site remains navigable. */
  .js .nav-toggle { display: inline-block; }
  /* Text spans the full width here, so the directional scrim gives way to a uniform one and the hero shrinks to its copy. */
  .hero { min-height: 0; }
  .hero > .container { grid-template-columns: minmax(0, 1fr); }
  .hero::after { background: linear-gradient(rgba(11, 37, 69, 0.64), rgba(11, 37, 69, 0.56)); }
  .hero-community::after { background: linear-gradient(rgba(11, 37, 69, 0.82), rgba(11, 37, 69, 0.74)); }
  .js .site-nav { display: none; position: absolute; left: 0; right: 0; top: 64px; flex-direction: column; background: var(--navy); padding: 0.5rem 1rem 1rem; }
  .js .site-nav.open { display: flex; }
}