/* Runkite public brand — one system for landing / support / design.
   Dark rack/ops (NOC language), not cinematic AI.
   Amber signal. Hard edges. No aurora / stars / cobalt glow. */

:root {
  --bg: #0a0a0b;
  --bg-elev: #121214;
  --bg-soft: #1a1a1d;
  --ink: #f4f4f5;
  --ink-dim: #d4d4d8;
  --muted: #a1a1aa;
  --line: rgba(244, 244, 245, 0.18);
  --line-strong: rgba(244, 244, 245, 0.32);
  --accent: #f5a524;
  --accent-2: #ffc857;
  --accent-soft: rgba(245, 165, 36, 0.12);
  --ok: #34d399;
  --warn: #fbbf24;
  --danger: #f87171;
  --radius: 2px;
  --radius-lg: 4px;
  --shadow: 0 1px 0 rgba(255, 255, 255, 0.04), 0 12px 40px rgba(0, 0, 0, 0.55);
  --font-display: "Fraunces", Georgia, serif;
  --font-sans: "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --max: 1120px;
  --nav-h: 4rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--font-sans);
  font-size: 1.05rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--accent-2);
  text-underline-offset: 0.18em;
}

a:hover {
  color: #ffe0a0;
}

code,
.mono {
  font-family: var(--font-mono);
  font-size: 0.88em;
}

.wrap {
  width: min(var(--max), calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  padding: 0.5rem clamp(1rem, 4vw, 2rem);
  background: color-mix(in srgb, var(--bg-elev) 94%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line-strong);
}

.site-logo {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
}

.site-logo span {
  color: var(--accent);
}

.site-logo:hover {
  color: var(--ink);
  text-decoration: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.7rem, 2vw, 1.25rem);
  flex-wrap: wrap;
  justify-content: flex-end;
  min-width: 0;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
}

.site-nav a[aria-current="page"] {
  box-shadow: inset 0 -2px 0 var(--accent);
}

.site-footer {
  padding: 2.5rem clamp(1rem, 4vw, 2rem) 3rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer a {
  color: var(--ink-dim);
  text-decoration: none;
  margin-right: 1rem;
}

.site-footer a:hover {
  color: var(--accent-2);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.75rem 1.2rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-family: var(--font-sans);
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--accent);
  color: #14110a;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-2);
  color: #14110a;
  box-shadow: 0 6px 20px -8px color-mix(in srgb, var(--accent) 60%, transparent);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--ink);
}

@media (prefers-reduced-motion: reduce) {
  .btn,
  .btn:hover,
  .btn:active {
    transition: none;
    transform: none;
  }
}

.kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.75rem;
}

@media (max-width: 720px) {
  .nav-hide-sm {
    display: none;
  }
}

@media (max-width: 480px) {
  .nav-hide-xs {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}