/* HalfOpen — house palette from HalfOpenKit.DesignTokens.
   Terminal green and amber on near-black. No web fonts and no third-party
   requests of any kind: the site keeps the same promise as the app. */

:root {
  color-scheme: dark;
  --background: #07090a;
  --surface: #0e1213;
  --surface-raised: #161b1c;
  --primary: #4fe07a;
  --primary-dim: rgba(79, 224, 122, 0.45);
  --primary-faint: rgba(79, 224, 122, 0.16);
  --grid: rgba(79, 224, 122, 0.07);
  --accent: #f0a830;
  --text: #d9e4dd;
  --text-dim: #8fa097;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --measure: 40rem;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--background);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: center top;
  color: var(--text);
  font: 1.0625rem/1.6 var(--sans);
}

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

.label {
  font-family: var(--mono);
  font-size: 0.8125rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--primary-dim);
}

/* Header and footer */

.site-header, .site-footer {
  width: 100%;
  max-width: calc(var(--measure) + 32px);
  margin: 0 auto;
  padding: 20px 16px;
}

.site-header { display: flex; align-items: center; gap: 12px; }
.site-header img { width: 32px; height: 32px; border-radius: 7px; }
.site-header a { text-decoration: none; display: flex; align-items: center; gap: 12px; }
.site-header .wordmark { font-family: var(--mono); color: var(--text); letter-spacing: 0.06em; }

main { flex: 1; width: 100%; max-width: calc(var(--measure) + 32px); margin: 0 auto; padding: 0 16px; }

.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-family: var(--mono);
  font-size: 0.8125rem;
  color: var(--text-dim);
  border-top: 1px solid var(--primary-faint);
  margin-top: 64px;
}
.site-footer nav { display: flex; gap: 20px; }
.site-footer .copyright { margin-left: auto; }

/* Holding page */

.holding {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 12vh 0 0;
}
.holding .icon {
  width: 160px;
  height: 160px;
  border-radius: 36px;
  box-shadow: 0 0 0 1px var(--primary-faint), 0 24px 80px rgba(79, 224, 122, 0.12);
}
.holding h1 {
  margin: 32px 0 8px;
  font-family: var(--mono);
  font-weight: 600;
  font-size: clamp(2.25rem, 8vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--text);
}
.holding h1 .ice { color: var(--primary); }
.holding .tagline { margin: 0 0 32px; font-size: 1.1875rem; color: var(--text-dim); max-width: 28rem; }
.holding .status {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  border: 1px solid rgba(240, 168, 48, 0.4);
  border-radius: 4px;
  padding: 8px 14px;
}
.holding .status::before { content: "> "; color: var(--primary-dim); }

/* Document pages: privacy, support */

.doc { padding-top: 32px; }
.doc h1 {
  font-family: var(--mono);
  font-weight: 600;
  font-size: clamp(1.75rem, 6vw, 2.25rem);
  line-height: 1.2;
  margin: 8px 0 8px;
}
.doc .updated { font-family: var(--mono); font-size: 0.875rem; color: var(--text-dim); margin: 0 0 32px; }
.doc h2 {
  font-family: var(--mono);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--primary);
  margin: 40px 0 8px;
}
.doc h3 { font-size: 1.0625rem; margin: 28px 0 4px; }
.doc p, .doc li { max-width: var(--measure); }
.doc ul { padding-left: 1.25rem; }
.doc li + li { margin-top: 6px; }

.summary {
  background: var(--surface);
  border: 1px solid var(--primary-faint);
  border-left: 3px solid var(--primary);
  border-radius: 4px;
  padding: 16px 20px;
  margin: 0 0 8px;
}
.summary p { margin: 0; }

.contact {
  background: var(--surface-raised);
  border-radius: 4px;
  padding: 20px;
  margin: 16px 0;
}
.contact a { font-family: var(--mono); font-size: 1.125rem; word-break: break-all; }

@media (prefers-reduced-motion: no-preference) {
  a { transition: color 0.18s ease-out; }
}

@media (max-width: 480px) {
  .site-footer .copyright { margin-left: 0; width: 100%; }
  .holding { padding-top: 8vh; }
  .holding .icon { width: 128px; height: 128px; border-radius: 29px; }
}