/* PRDAnvil coming-soon page. Native CSS, no build step. Auto light/dark via light-dark(). */
:root { color-scheme: light dark; }
:root[data-theme="light"] { color-scheme: light; }
:root[data-theme="dark"] { color-scheme: dark; }
:root {
  --bg:        light-dark(oklch(98.4% 0.005 70), oklch(16.5% 0.01 60));
  --bg-2:      light-dark(oklch(95.5% 0.008 70), oklch(20.5% 0.012 60));
  --fg:        light-dark(oklch(22% 0.015 60), oklch(93% 0.008 70));
  --fg-2:      light-dark(oklch(46% 0.015 60), oklch(70% 0.012 70));
  --line:      light-dark(oklch(88% 0.01 70), oklch(30% 0.012 60));
  --accent:    light-dark(oklch(56% 0.16 45), oklch(74% 0.15 50));
  --on-accent: light-dark(oklch(99% 0 0), oklch(18% 0.03 45));
  --code-bg:   oklch(19% 0.012 60);
  --code-fg:   oklch(92% 0.008 70);
  --code-dim:  oklch(62% 0.012 70);

  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --radius: 8px;
  --gutter: clamp(16px, 5vw, 64px);
  --wrap: 1080px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }
p a, .foot a { text-decoration: underline; text-decoration-color: var(--line); text-underline-offset: 3px; }
p a:hover, .foot a:hover { text-decoration-color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.nav, main, .foot { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }

.nav { display: flex; align-items: center; justify-content: space-between; padding-block: 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 650; letter-spacing: -0.01em; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 10px 16px; font-weight: 550;
  transition: border-color .15s, background-color .15s;
}
.btn:hover { border-color: var(--accent); }
.btn-sm { padding: 6px 12px; font-size: 14px; }

main { flex: 1; }

.hero { padding-block: clamp(56px, 12vh, 128px) clamp(40px, 7vh, 80px); max-width: 800px; }
.badge {
  display: inline-flex; align-items: center; gap: 8px; margin: 0 0 24px;
  padding: 4px 12px; border: 1px solid var(--line); border-radius: 999px;
  font-size: 13px; font-weight: 550; color: var(--fg-2); background: var(--bg-2);
}
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
@media (prefers-reduced-motion: no-preference) {
  .dot { animation: pulse 2.4s ease-in-out infinite; }
  @keyframes pulse { 50% { opacity: .35; } }
}
h1 { margin: 0; font-size: clamp(2.25rem, 6vw, 4rem); line-height: 1.05; letter-spacing: -0.035em; font-weight: 700; text-wrap: balance; }
.lede { margin: 24px 0 0; max-width: 60ch; font-size: clamp(1.05rem, 1.6vw, 1.2rem); color: var(--fg-2); text-wrap: pretty; }

.points {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.points > div { background: var(--bg); padding: 28px 24px; }
.step { margin: 0 0 12px; font: 600 12px/1 var(--mono); color: var(--accent); letter-spacing: .05em; }
.points h2 { margin: 0 0 8px; font-size: 1.05rem; letter-spacing: -0.01em; }
.points p:not(.step) { margin: 0; color: var(--fg-2); font-size: 15px; }

.today {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr); gap: 32px; align-items: center;
  margin-block: clamp(48px, 8vh, 88px);
}
.today h2 { margin: 0 0 8px; font-size: 1.25rem; letter-spacing: -0.015em; }
.today p { margin: 0; color: var(--fg-2); }
.today strong { color: var(--fg); font-weight: 600; white-space: nowrap; }
pre {
  margin: 0; padding: 20px 22px; overflow-x: auto;
  background: var(--code-bg); color: var(--code-fg); border-radius: var(--radius);
  font: 14px/1.7 var(--mono);
}
pre .c { color: var(--code-dim); }
pre .k { color: oklch(78% 0.14 50); }
@media (max-width: 720px) { .today { grid-template-columns: minmax(0, 1fr); gap: 16px; } }

.foot {
  display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between;
  padding-block: 28px; font-size: 14px; color: var(--fg-2);
  background: linear-gradient(var(--line), var(--line)) var(--gutter) 0 / calc(100% - 2 * var(--gutter)) 1px no-repeat;
}