/* Devsuda: one stylesheet, no external fonts, light and dark from the visitor's system setting. */
:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --text: #1d2125;
  --muted: #545b63;
  --line: #e3e0d8;
  --accent: #1f5f8b;
  --accent-soft: #e6eff5;
  --focus: #b4581d;
  --radius: 12px;
  --max: 68rem;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171a;
    --surface: #1b1f23;
    --text: #e8e6e1;
    --muted: #a7adb3;
    --line: #2d3338;
    --accent: #8cc2e8;
    --accent-soft: #1f2d38;
    --focus: #f0a46c;
  }
}

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

html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
}

a { color: var(--accent); text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 4px; }

.skip {
  position: absolute; left: 1rem; top: -4rem;
  background: var(--surface); color: var(--text); padding: 0.5rem 0.9rem; border-radius: 8px;
  border: 1px solid var(--line); z-index: 10;
}
.skip:focus { top: 1rem; }

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

/* Header */
.site-header { border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 4rem; }
.brand { display: inline-flex; align-items: center; gap: 0.6rem; color: var(--text); text-decoration: none; font-weight: 650; font-size: 1.15rem; letter-spacing: 0.01em; }
.brand svg { width: 28px; height: 28px; flex: none; }
.site-nav ul { display: flex; gap: 1.25rem; list-style: none; margin: 0; padding: 0; }
.site-nav a { color: var(--muted); text-decoration: none; font-size: 0.95rem; padding: 0.6rem 0; display: inline-block; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--text); text-decoration: underline; }

/* Hero */
.hero { padding: 4.5rem 0 3rem; }
.hero h1 { font-size: clamp(2rem, 4.6vw, 3.1rem); line-height: 1.15; letter-spacing: -0.015em; margin: 0 0 1.1rem; max-width: 22ch; font-weight: 700; }
.hero p { color: var(--muted); font-size: 1.15rem; max-width: 46rem; margin: 0; }

/* Sections */
section { padding: 2.5rem 0; }
h2 { font-size: 1.45rem; line-height: 1.3; margin: 0 0 0.4rem; letter-spacing: -0.005em; }
.section-lead { color: var(--muted); margin: 0 0 1.75rem; max-width: 46rem; }

/* Product cards */
.products { display: grid; grid-template-columns: repeat(auto-fill, minmax(17.5rem, 1fr)); gap: 1rem; list-style: none; margin: 0; padding: 0; }
.card {
  position: relative; display: flex; flex-direction: column; gap: 0.5rem;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.25rem 1.25rem 1.1rem;
  transition: border-color 120ms ease, transform 120ms ease;
}
.card:hover { border-color: var(--accent); }
.card .tag { align-self: flex-start; font-size: 0.78rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--accent); background: var(--accent-soft); border-radius: 999px; padding: 0.15rem 0.6rem; }
.card h3 { margin: 0.2rem 0 0; font-size: 1.2rem; }
.card h3 a { color: var(--text); text-decoration: none; }
.card h3 a::after { content: ""; position: absolute; inset: 0; border-radius: var(--radius); }
.card h3 a:focus-visible { outline: none; }
.card:focus-within { outline: 3px solid var(--focus); outline-offset: 3px; }
.card p { margin: 0; color: var(--muted); font-size: 0.98rem; flex: 1; }
.card .domain { font-size: 0.92rem; color: var(--accent); font-weight: 550; }
@media (prefers-reduced-motion: no-preference) { .card:hover { transform: translateY(-1px); } }

/* Facts */
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 1.5rem 2rem; margin: 0; }
.facts div { border-top: 2px solid var(--line); padding-top: 0.9rem; }
.facts dt { font-weight: 650; margin-bottom: 0.3rem; }
.facts dd { margin: 0; color: var(--muted); }

.contact { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; }
.contact p { margin: 0.3rem 0 0; color: var(--muted); }
.contact .email { font-size: 1.2rem; font-weight: 600; }

/* Legal pages */
.doc { padding: 3rem 0 2rem; max-width: 46rem; }
.doc h1 { font-size: clamp(1.8rem, 4vw, 2.4rem); line-height: 1.2; margin: 0 0 0.3rem; }
.doc .updated { color: var(--muted); margin: 0 0 2rem; font-size: 0.95rem; }
.doc h2 { margin-top: 2.2rem; font-size: 1.25rem; }
.doc ul { padding-left: 1.25rem; }
.doc li { margin: 0.3rem 0; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); margin-top: 2.5rem; padding: 1.75rem 0 2.5rem; color: var(--muted); font-size: 0.92rem; }
.site-footer .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 1.5rem; justify-content: space-between; }
.site-footer p { margin: 0; }
.site-footer ul { display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; list-style: none; margin: 0; padding: 0; }
.site-footer a { color: var(--muted); display: inline-block; padding: 0.35rem 0; }
.site-footer a:hover { color: var(--text); }

@media (max-width: 34rem) {
  .site-header .wrap { flex-wrap: wrap; padding-top: 0.6rem; padding-bottom: 0.6rem; min-height: 0; }
  .site-nav ul { gap: 1rem; }
  .hero { padding: 2.75rem 0 2rem; }
  section { padding: 2rem 0; }
}

.nowrap { white-space: nowrap; }