@font-face {
  font-family: "Inter";
  src: url("/fonts/inter-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #fafaf9;
  --ink: #111113;
  --ink-2: #55555c;
  --ink-3: #6b6b73;
  --line: #e6e6e3;
  --accent: #3b5bdb;
  --accent-soft: #e8ecfb;
  --wrap: 68rem;
  --gutter: clamp(1rem, 4vw, 2rem);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0c0d;
    --ink: #ededee;
    --ink-2: #a4a4ab;
    --ink-3: #8d8d95;
    --line: #232326;
    --accent: #8ea2f2;
    --accent-soft: #1a1f33;
    color-scheme: dark;
  }
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 5rem; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 1rem/1.6 "Inter", ui-sans-serif, sans-serif;
  font-feature-settings: "cv11", "ss01";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

::selection { background: var(--accent); color: var(--bg); }

a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

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

.skip {
  position: absolute; left: var(--gutter); top: -3rem;
  background: var(--ink); color: var(--bg); padding: 0.5rem 0.75rem; border-radius: 6px;
  text-decoration: none; z-index: 10;
}
.skip:focus { top: 0.75rem; }

/* Top bar */
.bar {
  position: sticky; top: 0; z-index: 5;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid var(--line);
}
.bar-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 3.75rem; }

.mark { display: inline-flex; align-items: center; gap: 0.55rem; text-decoration: none; font-weight: 600; letter-spacing: -0.015em; font-size: 1.0625rem; }
.mark svg { color: var(--ink); flex: none; }

nav ul { display: flex; gap: 0.25rem; margin: 0; padding: 0; list-style: none; }
nav a {
  display: block; padding: 0.45rem 0.7rem; border-radius: 8px;
  color: var(--ink-2); text-decoration: none; font-size: 0.9375rem; font-weight: 500;
  transition: color 160ms cubic-bezier(.2,.7,.2,1), background-color 160ms cubic-bezier(.2,.7,.2,1);
}
nav a:hover { color: var(--ink); background: color-mix(in srgb, var(--ink) 6%, transparent); }

/* Hero */
.hero { padding-block: clamp(4.5rem, 14vw, 9.5rem) clamp(3rem, 8vw, 5.5rem); }
.hero h1 {
  margin: 0; max-width: 18ch;
  font-size: clamp(2.25rem, 1.2rem + 4.6vw, 4.5rem);
  line-height: 1.04; font-weight: 600; letter-spacing: -0.035em;
  text-wrap: balance;
}
.lede {
  margin: 1.5rem 0 0; max-width: 40ch;
  font-size: clamp(1.125rem, 1rem + 0.6vw, 1.375rem); line-height: 1.5;
  color: var(--ink-2); letter-spacing: -0.01em; text-wrap: pretty;
}

/* App index: hairline rows, not cards */
.index { list-style: none; margin: 0 0 clamp(4rem, 10vw, 7rem); padding: 0; border-top: 1px solid var(--line); }
.index li {
  display: grid; grid-template-columns: 12rem 1fr auto; align-items: baseline; gap: 0.5rem 2rem;
  padding: 1.5rem 0; border-bottom: 1px solid var(--line);
}
.index h2 { margin: 0; font-size: 1.0625rem; font-weight: 600; letter-spacing: -0.015em; }
.index p { margin: 0; color: var(--ink-2); max-width: 60ch; }
.status {
  font-size: 0.8125rem; font-weight: 500; color: var(--accent);
  background: var(--accent-soft); padding: 0.2rem 0.6rem; border-radius: 999px; white-space: nowrap;
}
.index li:target h2 { color: var(--accent); }

@media (max-width: 40rem) {
  .bar-inner { min-height: 3.5rem; }
  .mark span { display: none; }
  nav a { padding: 0.45rem 0.55rem; font-size: 0.9rem; }
  .index li { grid-template-columns: 1fr auto; }
  .index p { grid-column: 1 / -1; grid-row: 2; }
}

/* Footer */
.foot { margin-top: auto; border-top: 1px solid var(--line); color: var(--ink-3); font-size: 0.875rem; }
.foot-inner { display: flex; justify-content: space-between; gap: 1rem; padding-block: 1.5rem; }