/* Dark by default (matches the b/w logo + self-hosted/terminal audience),
   light only via OS preference — no theme toggle, no JS-driven theme switch. */
:root {
  --bg: #0b0d10;
  --bg-elevated: #14171b;
  --fg: #e8e6e3;
  --fg-muted: #9aa0a6;
  --accent: #39d97a;
  --border: #262b31;
  --font-body: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-heading: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #fafaf9;
    --bg-elevated: #ffffff;
    --fg: #16181b;
    --fg-muted: #5c6570;
    --accent: #1a8f4c;
    --border: #e2e4e7;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.55;
}

a {
  color: var(--accent);
}

/* Explicitly no smooth-scroll, no scroll-triggered reveal animations, no
   position:sticky snap sections, no parallax — plain document flow only. */

[data-lang][hidden] {
  display: none;
}

.site-header,
main,
.site-footer {
  max-width: 46rem;
  margin: 0 auto;
  padding: 1.25rem 1.25rem;
}

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--fg);
  text-decoration: none;
  font-family: var(--font-mono);
  font-weight: 700;
}

.brand__logo {
  display: block;
  width: 26px;
  height: 32px;
}

.site-nav {
  display: flex;
  gap: 1rem;
  margin-right: auto;
}

.site-nav a {
  color: var(--fg-muted);
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--fg);
}

.lang-toggle {
  display: flex;
  gap: 0.25rem;
}

.lang-toggle button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  cursor: pointer;
}

.lang-toggle button[aria-pressed="true"] {
  color: var(--bg);
  background: var(--accent);
  border-color: var(--accent);
}

.hero {
  text-align: center;
  padding: 2.5rem 0 1.5rem;
}

.hero__logo-frame {
  display: inline-block;
  background: #fff;
  border-radius: 1rem;
  padding: 1rem 1.25rem;
  margin: 0 auto 1rem;
}

.hero__logo {
  display: block;
  width: 140px;
  height: auto;
}

.hero__tagline {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 2rem;
  margin: 0 0 0.75rem;
}

.hero__intro {
  color: var(--fg-muted);
  font-size: 1.05rem;
  max-width: 32rem;
  margin: 0 auto;
}

h1,
h2 {
  font-family: var(--font-heading);
  font-weight: 800;
}

h2 {
  font-size: 1.25rem;
  margin: 2rem 0 1rem;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.service-card {
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1rem;
  background: var(--bg-elevated);
}

.service-card[data-status="planned"] {
  border-style: dashed;
}

.service-card__name {
  font-family: var(--font-mono);
  font-size: 1rem;
  margin: 0 0 0.5rem;
}

.service-card__name a {
  text-decoration: none;
}

.service-card__name a:hover {
  text-decoration: underline;
}

.service-card__badge {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--fg-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.1rem 0.5rem;
  margin-left: 0.4rem;
  vertical-align: middle;
}

.service-card__description {
  color: var(--fg-muted);
  margin: 0;
}

.about p {
  max-width: 40rem;
}

.personal-infra .service-card__name {
  color: var(--fg);
}

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 2rem;
  color: var(--fg-muted);
  font-size: 0.9rem;
}

.site-footer a {
  color: var(--fg-muted);
}

.site-footer__footnote {
  font-size: 0.8rem;
  opacity: 0.8;
}

@media (max-width: 480px) {
  .hero__tagline {
    font-size: 1.5rem;
  }
}