/* Phosphor docs site — dark CRT vibe matching the app.
   Keep this file lean; everything below is hand-tuned for the
   landing page at docs/index.md + the default Jekyll layout. */

:root {
  --bg:        #0a0c10;
  --bg-card:   #12161c;
  --bg-soft:   #1a1f27;
  --border:    #232a35;
  --border-strong: #2f3a4a;
  --text:      #e8ecf2;
  --text-dim:  #9aa3b2;
  --text-muted:#5c6675;
  --phosphor:  #45ff8f;      /* signature green */
  --phosphor-dim: #1d8a4a;
  --amber:     #ffb255;
  --teal:      #5fb2d8;
  --rose:      #ff6b8a;
  --link:      #7fd4ff;
  --link-hover:#b6e6ff;
  --mono: ui-monospace, "JetBrains Mono", "SF Mono", Consolas, Menlo, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 0%, rgba(69, 255, 143, 0.05), transparent 50%),
    radial-gradient(circle at 80% 30%, rgba(95, 178, 216, 0.04), transparent 50%),
    var(--bg);
  min-height: 100vh;
}

a { color: var(--link); text-decoration: none; }
a:hover { color: var(--link-hover); text-decoration: underline; }

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--phosphor); color: var(--bg);
  padding: 8px 16px; font-weight: 600;
}
.skip:focus { left: 12px; top: 12px; z-index: 999; }

.wrap { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ── Header ─────────────────────────────────────────────────────── */
.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(10, 12, 16, 0.85);
  backdrop-filter: blur(6px);
  position: sticky; top: 0; z-index: 50;
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
  padding-top: 14px; padding-bottom: 14px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-icon { width: 44px; height: 44px; image-rendering: pixelated; }
.brand-name {
  font-family: var(--mono);
  font-size: 22px;
  margin: 0;
  color: var(--phosphor);
  text-shadow: 0 0 6px rgba(69, 255, 143, 0.4);
  letter-spacing: 0.5px;
}
.brand-tag {
  margin: 2px 0 0 0;
  font-size: 12px;
  color: var(--text-dim);
}
.site-nav { display: flex; gap: 20px; flex-wrap: wrap; }
.site-nav a {
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 500;
}
.site-nav a:hover { color: var(--phosphor); text-decoration: none; }

/* ── Hero ───────────────────────────────────────────────────────── */
.hero {
  padding: 64px 0 48px 0;
  text-align: center;
}
.hero h1 {
  font-family: var(--mono);
  font-size: 56px;
  line-height: 1.05;
  margin: 0 0 16px 0;
  color: var(--phosphor);
  text-shadow:
    0 0 8px rgba(69, 255, 143, 0.5),
    0 0 24px rgba(69, 255, 143, 0.2);
  letter-spacing: 1px;
}
.hero p.lede {
  max-width: 680px; margin: 0 auto 28px auto;
  font-size: 20px; line-height: 1.45;
  color: var(--text-dim);
}
.hero-cta {
  display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
  margin-top: 28px;
}
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px;
  border-radius: 6px;
  font-weight: 600; font-size: 15px;
  text-decoration: none;
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  color: var(--text);
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.btn:hover { text-decoration: none; background: var(--bg-soft); border-color: var(--phosphor-dim); color: var(--phosphor); }
.btn.primary {
  background: linear-gradient(180deg, #1c5e3a 0%, #134d2e 100%);
  border-color: var(--phosphor-dim);
  color: var(--phosphor);
}
.btn.primary:hover {
  background: linear-gradient(180deg, #237448 0%, #176039 100%);
  color: #b8ffd1;
}

/* ── Hero screenshot ────────────────────────────────────────────── */
.hero-shot {
  margin: 36px auto 0 auto;
  max-width: 920px;
  padding: 8px;
  border-radius: 10px;
  background: linear-gradient(180deg, #1d2530 0%, #131820 100%);
  border: 1px solid var(--border-strong);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(69, 255, 143, 0.08);
}
.hero-shot img { display: block; width: 100%; height: auto; border-radius: 6px; }

/* ── Sections ───────────────────────────────────────────────────── */
section {
  padding: 56px 0;
  border-top: 1px solid var(--border);
}
section h2 {
  font-family: var(--mono);
  font-size: 28px;
  color: var(--phosphor);
  margin: 0 0 8px 0;
  letter-spacing: 0.5px;
}
section h2::before {
  content: "# ";
  color: var(--text-muted);
  font-weight: 400;
}
section > p.subhead {
  color: var(--text-dim);
  font-size: 16px;
  margin: 0 0 32px 0;
  max-width: 720px;
}

/* ── Video (YouTube trailer) ────────────────────────────────────── */
.video-wrap {
  position: relative;
  width: 100%;
  max-width: 960px;
  margin: 8px auto 0;
  aspect-ratio: 16 / 9;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
  background: #000;
}
.video-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ── Feature grid ───────────────────────────────────────────────── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}
.feature {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px;
  transition: border-color 0.15s, transform 0.15s;
}
.feature:hover {
  border-color: var(--phosphor-dim);
  transform: translateY(-1px);
}
.feature .icon {
  font-size: 22px;
  margin-bottom: 8px;
}
.feature h3 {
  margin: 0 0 6px 0;
  font-size: 15px;
  color: var(--phosphor);
}
.feature p {
  margin: 0;
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.5;
}

/* ── Library sub-section ────────────────────────────────────────── */
.library-sources {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 12px;
}
.lib-source {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 20px;
}
.lib-source h3 {
  margin: 0 0 8px 0;
  font-family: var(--mono);
  color: var(--phosphor);
  font-size: 16px;
}
.lib-source p { margin: 0 0 12px 0; color: var(--text-dim); font-size: 14px; }
.lib-source img {
  width: 100%; height: auto; border-radius: 4px;
  border: 1px solid var(--border);
  margin-top: 8px;
}

/* ── Screenshot gallery ─────────────────────────────────────────── */
.shot-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}
.shot {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}
.shot img { display: block; width: 100%; height: auto; }
.shot figcaption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
}

/* Placeholder for missing screenshots */
.shot.placeholder {
  display: flex; flex-direction: column;
  align-items: stretch; justify-content: stretch;
  min-height: 200px;
}
.shot.placeholder .ph-body {
  flex: 1;
  display: flex; align-items: center; justify-content: center;
  background:
    repeating-linear-gradient(
      45deg,
      rgba(95, 178, 216, 0.05) 0,
      rgba(95, 178, 216, 0.05) 6px,
      transparent 6px,
      transparent 12px
    );
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.5px;
  text-align: center;
  padding: 24px;
}

/* ── Download row ───────────────────────────────────────────────── */
.dl-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.dl {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 18px;
  text-align: center;
}
.dl .os {
  font-family: var(--mono);
  color: var(--phosphor);
  font-size: 16px;
  margin-bottom: 4px;
}
.dl .ext {
  color: var(--text-dim);
  font-size: 13px;
  margin-bottom: 14px;
}

/* ── Code blocks ────────────────────────────────────────────────── */
pre, code {
  font-family: var(--mono);
  font-size: 14px;
}
pre {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 14px 16px;
  overflow-x: auto;
  color: var(--text);
}
code {
  background: var(--bg-soft);
  padding: 2px 6px;
  border-radius: 3px;
  color: var(--phosphor);
}
pre code { background: none; padding: 0; color: inherit; }

/* ── kbd + shortcuts table ──────────────────────────────────────── */
kbd {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  background: var(--bg-soft);
  color: var(--phosphor);
  padding: 2px 8px;
  border: 1px solid var(--border-strong);
  border-bottom-width: 2px;
  border-radius: 4px;
  line-height: 1.2;
  min-width: 20px;
  text-align: center;
}
table.shortcuts { max-width: 640px; }
table.shortcuts td:first-child { width: 200px; white-space: nowrap; }
table.shortcuts td, table.shortcuts th { vertical-align: middle; }

/* ── Tables ─────────────────────────────────────────────────────── */
table {
  border-collapse: collapse;
  width: 100%;
  font-size: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  margin: 14px 0;
}
th, td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}
th { background: var(--bg-soft); color: var(--phosphor); font-weight: 600; }
tr:last-child td { border-bottom: 0; }
td code { background: var(--bg-soft); color: var(--phosphor); }

/* ── Misc ───────────────────────────────────────────────────────── */
ul, ol { padding-left: 22px; }
li { margin: 4px 0; }
hr { border: 0; border-top: 1px solid var(--border); margin: 24px 0; }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  margin-top: 32px;
  background: rgba(10, 12, 16, 0.6);
}
.site-footer p { color: var(--text-dim); margin: 4px 0; font-size: 14px; }
.site-footer p.dim { color: var(--text-muted); font-size: 13px; }

/* ── Mobile tweaks ──────────────────────────────────────────────── */
@media (max-width: 640px) {
  .hero h1 { font-size: 40px; }
  .hero p.lede { font-size: 17px; }
  .site-header .wrap { flex-direction: column; align-items: flex-start; gap: 12px; }
  .site-nav { gap: 14px; }
  section { padding: 40px 0; }
  section h2 { font-size: 24px; }
}