/* Swellgang site styles */

:root {
  --field: #0f3d24;
  --field-dark: #0a2a19;
  --turf: #1a5c36;
  --chalk: #f5f3ea;
  --chalk-dim: #c9d3c6;
  --gold: #f2b134;
  --gold-dark: #c98a12;
  --ink: #16201a;
  --muted: #55625a;
  --bg: #fbfaf5;
  --bg-alt: #eef0e8;
  --card: #ffffff;
  --border: #dde2d6;
  --link: #1a6b3e;
  --radius: 14px;
  --max: 1100px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: "Arial Black", "Helvetica Neue", Impact, system-ui, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #eef1ea;
    --muted: #a7b2a9;
    --bg: #0d1510;
    --bg-alt: #121d16;
    --card: #17231b;
    --border: #26362b;
    --link: #f2b134;
  }
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-text-size-adjust: 100%;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--link); }
a:hover { text-decoration-thickness: 2px; }

:focus-visible { outline: 3px solid var(--gold); outline-offset: 2px; }

.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 16px;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--field-dark);
  color: var(--chalk);
  border-bottom: 3px solid var(--gold);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--chalk);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.02em;
}

.site-nav { display: flex; gap: 24px; }

.site-nav a {
  color: var(--chalk-dim);
  text-decoration: none;
  font-weight: 600;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] { color: var(--gold); }

.nav-toggle {
  display: none;
  background: transparent;
  color: var(--chalk);
  border: 1px solid var(--chalk-dim);
  border-radius: 8px;
  padding: 6px 12px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

@media (max-width: 640px) {
  .nav-toggle { display: block; }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--field-dark);
    border-bottom: 3px solid var(--gold);
  }

  .site-nav.open { display: flex; }

  .site-nav a {
    padding: 14px 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }
}

/* Hero */

.hero {
  color: var(--chalk);
  background:
    repeating-linear-gradient(90deg, transparent 0 79px, rgba(255, 255, 255, 0.07) 79px 81px),
    linear-gradient(160deg, var(--turf), var(--field) 55%, var(--field-dark));
  padding: 64px 0 72px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--gold);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.85rem;
}

.hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  line-height: 1;
  text-transform: uppercase;
}

.lead {
  margin: 0 0 28px;
  font-size: 1.2rem;
  color: var(--chalk-dim);
  max-width: 34ch;
}

.store-buttons { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px; }

.store-btn { display: inline-block; border-radius: 10px; }
.store-btn-apple img { height: 54px; width: auto; }
/* Google's badge PNG has transparent padding built in, so it's drawn taller
   and pulled in to line up with the Apple badge. */
.store-btn-google img { height: 80px; width: auto; margin: -13px -12px; }

.hero-art img {
  border-radius: var(--radius);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

@media (max-width: 820px) {
  .hero { padding: 40px 0 48px; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-art { max-width: 420px; }
}

/* Sections */

.section { padding: 64px 0; }
.section-alt { background: var(--bg-alt); }

.section h2 {
  margin: 0 0 24px;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  text-transform: uppercase;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.feature {
  background: var(--card);
  border: 1px solid var(--border);
  border-top: 4px solid var(--gold);
  border-radius: var(--radius);
  padding: 24px;
}

.feature h3 { margin: 0 0 8px; font-size: 1.2rem; }
.feature p { margin: 0; color: var(--muted); }

/* Screenshot grid: 5 columns, the first shot is 2x2, so 7 shots fill 2 rows exactly. */

.gallery {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}

.gallery-feature { grid-column: span 2; grid-row: span 2; }

.gallery a {
  display: block;
  height: 100%;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--field-dark);
  cursor: zoom-in;
}

.gallery img {
  width: 100%;
  height: auto;
  aspect-ratio: 20 / 9;
  object-fit: cover;
  transition: transform 0.2s ease;
}

.gallery-feature img { height: 100%; aspect-ratio: auto; }

.gallery a:hover img { transform: scale(1.04); }

@media (max-width: 820px) {
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .gallery-feature { grid-row: auto; }
  .gallery-feature img { aspect-ratio: 20 / 9; }
}

@media (max-width: 480px) {
  .gallery { gap: 8px; }
  .gallery a { border-radius: 8px; }
}

/* Lightbox */

.lightbox {
  width: 100vw;
  height: 100vh;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 56px 16px 16px;
  border: 0;
  background: rgba(5, 12, 8, 0.94);
  color: var(--chalk);
}

.lightbox[open] {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.lightbox::backdrop { background: rgba(0, 0, 0, 0.6); }

.lightbox-img {
  max-width: 100%;
  max-height: calc(100vh - 120px);
  width: auto;
  height: auto;
  border-radius: 10px;
}

.lightbox-caption { margin: 12px 0 0; color: var(--chalk-dim); text-align: center; }

.lightbox-btn {
  position: absolute;
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: var(--chalk);
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
}

.lightbox-btn:hover { background: var(--gold); color: var(--field-dark); }

.lightbox-close { top: 8px; right: 12px; }
.lightbox-prev { left: 12px; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 12px; top: 50%; transform: translateY(-50%); }

@media (max-width: 640px) {
  .lightbox-prev, .lightbox-next { top: auto; bottom: 12px; transform: none; }
}

.about p { max-width: 60ch; }

/* Prose pages (support, privacy) */

.prose { max-width: 760px; }

.prose h1 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 2.8rem);
  text-transform: uppercase;
}

.prose h2 {
  margin: 40px 0 12px;
  font-family: var(--font);
  font-size: 1.35rem;
  text-transform: none;
  scroll-margin-top: 80px;
}

.prose h3 { margin: 24px 0 6px; font-size: 1.08rem; }
.prose ul { padding-left: 1.25em; }
.prose li { margin-bottom: 6px; }

.meta { color: var(--muted); margin-top: 0; }

.callout {
  background: var(--bg-alt);
  border-left: 4px solid var(--gold);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 14px 18px;
}

.toc {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin: 24px 0;
}

.toc ol { margin: 0; padding-left: 1.25em; columns: 2; column-gap: 32px; }
.toc li { margin-bottom: 4px; break-inside: avoid; }

@media (max-width: 560px) {
  .toc ol { columns: 1; }
}

.faq {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 12px;
}

.faq summary { cursor: pointer; font-weight: 600; }
.faq p { margin: 10px 0 0; color: var(--muted); }

/* Footer */

.site-footer {
  background: var(--field-dark);
  color: var(--chalk-dim);
  padding: 28px 0;
  font-size: 0.95rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  align-items: center;
  justify-content: space-between;
}

.footer-inner p { margin: 0; }
.footer-inner nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.site-footer a { color: var(--chalk-dim); }
.site-footer a:hover { color: var(--gold); }

@media print {
  .site-header, .site-footer, .toc { display: none; }
  body { background: #fff; color: #000; }
}