/* niklasroeker.com
   One stylesheet for every page. Change the look by editing the tokens in :root.
   No JavaScript, no external fonts, no trackers. */

:root {
  color-scheme: light dark;

  --bg: #ffffff;
  --bg-soft: #f5f5f7;
  --text: #1d1d1f;
  --text-soft: #5f5f66;
  --line: #e3e3e8;
  --accent: #0a5cd6;
  --nav-bg: rgba(255, 255, 255, 0.72);

  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --measure: 46rem;
  --pad: clamp(1.25rem, 5vw, 2.5rem);
  --radius: 0.75rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0c0e;
    --bg-soft: #17171a;
    --text: #f2f2f4;
    --text-soft: #a3a3ad;
    --line: #2a2a30;
    --accent: #6aa8ff;
    --nav-bg: rgba(12, 12, 14, 0.72);
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 4.5rem;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 100%/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

.wrap { max-width: var(--measure); margin-inline: auto; padding-inline: var(--pad); }

.skip {
  position: absolute; left: -999px; top: 0.5rem;
  background: var(--bg); color: var(--text); padding: 0.5rem 0.75rem; border-radius: 0.5rem; z-index: 20;
}
.skip:focus { left: 0.5rem; }

/* ---------- Navigation ---------- */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: var(--nav-bg);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 3.25rem; }
.nav a { color: var(--text); text-decoration: none; }
.nav .brand { font-weight: 650; letter-spacing: -0.01em; white-space: nowrap; }
@media (max-width: 34rem) { .nav li.wide { display: none; } }
.nav ul { display: flex; gap: clamp(0.75rem, 3vw, 1.5rem); list-style: none; margin: 0; padding: 0; font-size: 0.9375rem; }
.nav ul a { color: var(--text-soft); padding-block: 0.75rem; display: inline-block; transition: color 150ms ease-out; }
.nav ul a:hover { color: var(--text); }

/* ---------- Hero ---------- */
.hero { padding-block: clamp(3.5rem, 12vw, 7rem) clamp(2.5rem, 8vw, 4.5rem); }
.eyebrow { margin: 0 0 0.75rem; color: var(--text-soft); font-size: 0.9375rem; letter-spacing: 0.01em; }
h1 {
  margin: 0;
  font-size: clamp(2.5rem, 9vw, 4.5rem);
  line-height: 1.04;
  letter-spacing: -0.035em;
  font-weight: 700;
}
.lead {
  margin: 1.25rem 0 0;
  font-size: clamp(1.125rem, 2.6vw, 1.375rem);
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--text-soft);
  max-width: 36rem;
}
.lead strong { color: var(--text); font-weight: 600; }

.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }
.btn {
  display: inline-flex; align-items: center; min-height: 2.75rem; padding: 0 1.15rem;
  border-radius: 999px; font-weight: 550; font-size: 0.9375rem; text-decoration: none;
  border: 1px solid var(--line); color: var(--text); background: transparent;
  transition: transform 100ms ease-out, background-color 150ms ease-out;
}
.btn:hover { background: var(--bg-soft); }
.btn:active { transform: scale(0.97); }
.btn.primary { background: var(--text); color: var(--bg); border-color: var(--text); }
.btn.primary:hover { background: var(--text); opacity: 0.88; }

/* ---------- Sections ---------- */
section { padding-block: clamp(2rem, 6vw, 3.25rem); border-top: 1px solid var(--line); }
h2 {
  margin: 0 0 1.75rem;
  font-size: 0.8125rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--text-soft);
}
h3 { margin: 0; font-size: 1.0625rem; line-height: 1.35; letter-spacing: -0.01em; font-weight: 600; }

.entry + .entry { margin-top: 2.25rem; }
.entry-head { display: grid; grid-template-columns: 1fr auto; align-items: baseline; gap: 0.15rem 1.5rem; }
@media (max-width: 34rem) { .entry-head { grid-template-columns: 1fr; } }
.dates { color: var(--text-soft); font-size: 0.9375rem; font-variant-numeric: tabular-nums; white-space: nowrap; }
.org { margin: 0.15rem 0 0; color: var(--text-soft); }
.entry ul { margin: 0.75rem 0 0; padding-left: 1.1rem; }
.entry li { margin-top: 0.4rem; }
.entry li::marker { color: var(--text-soft); }
.entry p.note { margin: 0.6rem 0 0; }

.card { background: var(--bg-soft); border-radius: var(--radius); padding: clamp(1.25rem, 4vw, 1.75rem); }
.card p { margin: 0.6rem 0 0; }

dl.facts { margin: 0; display: grid; grid-template-columns: minmax(7rem, 11rem) 1fr; gap: 0.9rem 1.5rem; }
dl.facts dt { color: var(--text-soft); }
dl.facts dd { margin: 0; }
@media (max-width: 34rem) {
  dl.facts { grid-template-columns: 1fr; gap: 0.1rem; }
  dl.facts dd { margin-bottom: 0.9rem; }
}

/* ---------- Long-form pages (privacy) ---------- */
.prose { padding-block: clamp(2.5rem, 8vw, 4.5rem); }
.prose h1 { font-size: clamp(2rem, 6vw, 3rem); }
.prose h2 { margin: 2.5rem 0 0.75rem; font-size: 1.25rem; letter-spacing: -0.015em; text-transform: none; color: var(--text); }
.prose h3 { margin: 1.75rem 0 0.5rem; }
.prose p, .prose li { max-width: 40rem; }
.prose ul { padding-left: 1.1rem; }
.prose li { margin-top: 0.4rem; }
.prose .updated { color: var(--text-soft); margin-top: 0.75rem; }
.prose code { font-size: 0.9em; background: var(--bg-soft); padding: 0.1em 0.35em; border-radius: 0.3em; }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--line); padding-block: 2rem 3rem; color: var(--text-soft); font-size: 0.9375rem; }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem 1.5rem; }
footer a { color: var(--text-soft); }

/* ---------- Accessibility preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}
@media (prefers-reduced-transparency: reduce) {
  .nav { background: var(--bg); -webkit-backdrop-filter: none; backdrop-filter: none; }
}
@media (prefers-contrast: more) {
  :root { --text-soft: var(--text); --line: var(--text); }
  .nav { background: var(--bg); -webkit-backdrop-filter: none; backdrop-filter: none; }
}
@media print {
  .nav, .actions, .skip { display: none; }
  body { font-size: 10.5pt; }
  section { padding-block: 1rem; }
}