/* raycave.com — one small stylesheet, zero JS. Sibling of vbcut.com's site;
   same architecture and class names, different accent. Mobile-first. */

:root {
  color-scheme: light dark;
  --ink: #14181f;
  --muted: #5a6472;
  --bg: #ffffff;
  --wash: #f5f5fa;
  --accent: #3f3d9e;        /* indigo — distinct from vbcut's blue */
  --accent-ink: #ffffff;
  --line: #e4e4ee;
  --max: 42rem;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 17px;
}

a { color: var(--accent); }
img { max-width: 100%; height: auto; }

/* visible focus for keyboard users — never remove without replacing */
a:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

.skip {
  position: absolute; left: -9999px;
  background: var(--accent); color: var(--accent-ink);
  padding: 0.6rem 1rem; border-radius: 0 0 0.5rem 0;
  text-decoration: none; z-index: 10;
}
.skip:focus { left: 0; top: 0; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 1.25rem; }

/* header / nav */
header.site { border-bottom: 1px solid var(--line); }
header.site .wrap {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 0.9rem; padding-bottom: 0.9rem;
}
.brand {
  font-weight: 700; font-size: 1.15rem; color: var(--ink);
  text-decoration: none; letter-spacing: -0.01em;
}
.brand span { color: var(--accent); }
nav.site a { margin-left: 1rem; font-size: 0.95rem; text-decoration: none; color: var(--muted); padding: 0.4rem 0; display: inline-block; }
nav.site a:hover { color: var(--ink); }

/* hero */
.hero { padding: 3.5rem 0 2.5rem; }
.hero h1 {
  font-size: clamp(1.9rem, 6vw, 2.85rem);
  line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 0.85rem;
}
.hero .sub { font-size: 1.15rem; color: var(--muted); margin: 0 0 1.75rem; max-width: 36rem; }

/* buttons */
.btn {
  display: inline-block; background: var(--accent); color: var(--accent-ink);
  font-weight: 600; text-decoration: none; border-radius: 0.65rem;
  padding: 0.8rem 1.5rem; font-size: 1.02rem;
}
.btn:hover { filter: brightness(1.12); }
.btn.ghost {
  background: transparent; color: var(--accent);
  border: 1px solid var(--line);
}
.btn.ghost:hover { border-color: var(--accent); filter: none; }
.cta-note { font-size: 0.9rem; color: var(--muted); margin-top: 0.6rem; }

/* sections */
section { padding: 2.25rem 0; }
section.alt { background: var(--wash); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
h2 { font-size: 1.45rem; letter-spacing: -0.01em; margin: 0 0 1rem; }
h3 { font-size: 1.1rem; margin: 1.5rem 0 0.4rem; }
p  { margin: 0.7rem 0; }
ul { padding-left: 1.2rem; }
li { margin: 0.4rem 0; }

/* product panel */
.product {
  border: 1px solid var(--line); border-radius: 0.9rem;
  padding: 1.4rem 1.5rem; background: var(--bg);
}
.product .eyebrow {
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--accent); margin: 0 0 0.35rem;
}
.product h2 { margin: 0 0 0.4rem; font-size: 1.35rem; letter-spacing: -0.01em; }
.product p { color: var(--muted); margin: 0 0 1rem; }

.cards { display: grid; gap: 0.9rem; grid-template-columns: 1fr; margin-top: 1.25rem; }
@media (min-width: 640px) { .cards { grid-template-columns: repeat(3, 1fr); } }
.card {
  background: var(--bg); border: 1px solid var(--line);
  border-radius: 0.75rem; padding: 1rem 1.1rem;
}
.card h3 { margin: 0 0 0.3rem; font-size: 1rem; }
.card p { margin: 0; font-size: 0.95rem; color: var(--muted); }

/* prose pages */
.prose { padding: 2.75rem 0 1rem; }
.prose h1 { font-size: 1.9rem; letter-spacing: -0.02em; margin: 0 0 0.5rem; }
.prose h2 { margin-top: 2.25rem; font-size: 1.25rem; }
.prose .updated { color: var(--muted); font-size: 0.9rem; margin-bottom: 1.5rem; }

/* callout — same class name as vbcut's sheet, per the sibling convention above */
.callout {
  background: var(--wash); border-left: 4px solid var(--accent);
  border-radius: 0 0.5rem 0.5rem 0; padding: 0.8rem 1rem; margin: 1rem 0;
}
.callout.big { font-size: 1.05rem; font-weight: 600; }

/* definition-style company facts */
dl.facts { margin: 1.25rem 0 0; }
dl.facts div {
  display: flex; gap: 1rem; padding: 0.6rem 0;
  border-top: 1px solid var(--line); flex-wrap: wrap;
}
dl.facts div:last-child { border-bottom: 1px solid var(--line); }
dl.facts dt { flex: 0 0 9.5rem; color: var(--muted); font-size: 0.95rem; margin: 0; }
dl.facts dd { margin: 0; flex: 1 1 14rem; }

/* footer */
footer.site { border-top: 1px solid var(--line); margin-top: 2rem; }
footer.site .wrap { padding-top: 1.5rem; padding-bottom: 2rem; font-size: 0.9rem; color: var(--muted); }
footer.site a { color: var(--muted); text-decoration: none; margin-right: 1rem; padding: 0.4rem 0; display: inline-block; }
footer.site a:hover { color: var(--ink); }
footer.site .legal { margin-top: 0.75rem; line-height: 1.5; }

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #eef1f5; --muted: #9aa4b2; --bg: #101318; --wash: #181b23;
    --accent: #9b98f0; --accent-ink: #0b1020; --line: #2a2e3b;
  }
}