/* Landing page. Tokens and texture are kept identical to assets/demo.css so the
   index and the two demo artifacts read as one product. */
:root {
  --bg: #0b0f14;
  --bg2: #111823;
  --panel: #0f1620;
  --panel2: #161e2a;
  --line: #1e2a38;
  --line2: #2b3a4d;
  --ink: #dfe7ef;
  --dim: #8fa3b8;
  --muted: #5d7288;
  --info: #4db8ff;
  --ok: #3ddc97;
  --warn: #f5b942;
  --acc: #7c8cff;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  --r: 5px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  /* same faint graph paper as the demos */
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 44px 44px;
  background-position: -1px -1px;
  background-attachment: fixed;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: radial-gradient(120% 80% at 20% 0%, rgba(124, 140, 255, .10), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.wrap {
  position: relative;
  z-index: 1;
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- skip link ---------- */
.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--info);
  color: #04121f;
  padding: 10px 16px;
  font: 600 13px var(--mono);
  z-index: 10;
}
.skip:focus { left: 8px; top: 8px; }

/* ---------- header ---------- */
header {
  position: relative;
  z-index: 1;
  border-bottom: 1px solid var(--line);
  padding: 52px 0 36px;
}

.kicker {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--info);
}

h1 {
  margin: 0;
  font-size: clamp(1.8rem, 5vw, 2.85rem);
  line-height: 1.1;
  letter-spacing: -.02em;
  font-weight: 700;
}

h1 .sub {
  display: block;
  margin-top: .35em;
  font-size: .5em;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--dim);
}

.byline { margin: 18px 0 0; font-family: var(--mono); font-size: 13.5px; color: var(--dim); }
.lede { margin: 20px 0 0; max-width: 62ch; color: var(--dim); font-size: 1.0625rem; }

/* ---------- sections ---------- */
main { position: relative; z-index: 1; padding: 8px 0 24px; }
section { margin: 46px 0; }

h2 {
  margin: 0 0 6px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.section-note { margin: 16px 0 0; max-width: 68ch; color: var(--dim); font-size: .9375rem; }

/* ---------- demo cards ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
  gap: 14px;
  margin-top: 20px;
  align-items: start;
}
.grid > * { min-width: 0; }

.card {
  background: var(--panel);
  border: 1px solid var(--line2);
  border-radius: var(--r);
  padding: 18px;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.num {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--info);
}

.card h3 { margin: 0 0 8px; font-size: 1.125rem; line-height: 1.25; letter-spacing: -.01em; }
.card h3 em { color: var(--info); font-style: italic; }
.card h3 a { text-decoration: none; }
.card h3 a:hover { text-decoration: underline; }
.card p { margin: 0 0 12px; color: var(--dim); font-size: .9375rem; }

/* the verbatim prompt is the point of the talk, so it stays visually distinct */
.prompt {
  margin: 2px 0 14px;
  padding: 10px 12px;
  border-left: 3px solid var(--acc);
  border-radius: 0 var(--r) var(--r) 0;
  background: var(--bg2);
}
.prompt p {
  margin: 0 !important;
  color: var(--ink) !important;
  font-family: var(--mono);
  font-size: .8125rem;
  line-height: 1.6;
}

/* ---------- buttons ---------- */
.go { margin: auto 0 0 !important; padding-top: 4px; }

.btn {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12.5px;
  text-decoration: none;
  color: #04121f;
  background: var(--info);
  border: 1px solid var(--info);
  border-radius: var(--r);
  padding: 8px 14px;
  transition: background .15s, border-color .15s, color .15s;
}
.btn:hover, .btn:focus-visible { background: #7ccbff; border-color: #7ccbff; }
.btn.ghost { background: none; color: var(--info); }
.btn.ghost:hover, .btn.ghost:focus-visible { background: rgba(77, 184, 255, .12); color: #7ccbff; }

/* ---------- "also here" list ---------- */
.links { list-style: none; margin: 18px 0 0; padding: 0; }

.links li {
  display: grid;
  grid-template-columns: minmax(0, 200px) minmax(0, 1fr);
  gap: 4px 20px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}

.links li > :first-child { font-family: var(--mono); font-size: .875rem; }
.links li > span:last-child { color: var(--dim); font-size: .9375rem; }
.pending-inline { color: var(--muted); }

@media (max-width: 620px) {
  .links li { grid-template-columns: minmax(0, 1fr); gap: 3px; }
}

/* ---------- code / links ---------- */
code {
  font-family: var(--mono);
  font-size: .85em;
  background: var(--bg2);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1px 5px;
  color: var(--ink);
}

a { color: var(--info); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: #7ccbff; }
:focus-visible { outline: 2px solid var(--acc); outline-offset: 3px; }

/* ---------- footer ---------- */
footer {
  position: relative;
  z-index: 1;
  margin-top: 56px;
  border-top: 1px solid var(--line);
  padding: 24px 0 44px;
  background: rgba(17, 24, 35, .6);
}

footer p { margin: 0; font-family: var(--mono); font-size: 12.5px; color: var(--dim); }
footer .fine { color: var(--muted); font-size: 12px; max-width: 76ch; }
footer .fine:first-child { margin-bottom: 14px; }
footer p + p { margin-top: 10px; }

@media (max-width: 560px) {
  header { padding: 36px 0 28px; }
  .wrap { padding: 0 16px; }
  section { margin: 36px 0; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}