:root {
  --bg: #050608;
  --bg-2: #0B0E14;
  --panel: #0F141C;
  --cyan: #22D3EE;
  --cyan-2: #06B6D4;
  --cyan-soft: rgba(34, 211, 238, 0.08);
  --cyan-border: rgba(34, 211, 238, 0.3);
  --line: #1E293B;
  --text: #D6DCE5;
  --text-dim: #94A3B8;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { background: var(--bg); color: var(--text); }
body { font-family: 'Space Grotesk', system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
.mono { font-family: 'JetBrains Mono', ui-monospace, monospace; }

.text-cyan { color: var(--cyan); }
.bg-cyan { background: var(--cyan); }
.border-cyan { border-color: var(--cyan); }

.grid-bg {
  background-image:
    linear-gradient(to right, rgba(34, 211, 238, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(34, 211, 238, 0.045) 1px, transparent 1px);
  background-size: 48px 48px;
}

.hero-glow {
  background:
    radial-gradient(ellipse 60% 50% at 20% 30%, rgba(34, 211, 238, 0.10), transparent 60%),
    radial-gradient(ellipse 50% 40% at 80% 70%, rgba(34, 211, 238, 0.06), transparent 60%);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.panel:hover {
  border-color: rgba(34, 211, 238, 0.5);
  box-shadow: 0 0 30px -10px rgba(34, 211, 238, 0.25);
}

.neon { box-shadow: 0 0 30px -5px rgba(34, 211, 238, 0.4); }
.scan-line { background: linear-gradient(90deg, transparent, var(--cyan), transparent); height: 1px; opacity: 0.6; }

.corner-frame { position: relative; }
.corner-frame::before, .corner-frame::after {
  content: ''; position: absolute; width: 14px; height: 14px;
  border: 1.5px solid var(--cyan); pointer-events: none;
}
.corner-frame::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.corner-frame::after { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

.cert-tag {
  background: var(--cyan-soft);
  border: 1px solid var(--cyan-border);
  color: var(--cyan);
}

.btn-primary { background: var(--cyan); color: var(--bg); border: 1px solid var(--cyan); }
.btn-primary:hover { background: #67E8F9; box-shadow: 0 0 30px -5px rgba(34, 211, 238, 0.6); }
.btn-ghost { border: 1px solid var(--line); color: var(--text); background: transparent; }
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); }

.num { font-feature-settings: "tnum"; font-variant-numeric: tabular-nums; }

.blink::after { content: '_'; animation: blink 1s steps(2) infinite; }
@keyframes blink { to { opacity: 0; } }

a.nav-link { color: var(--text-dim); transition: color 0.15s ease; }
a.nav-link:hover, a.nav-link.active { color: var(--cyan); }

input.field, select.field, textarea.field {
  width: 100%;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 0.75rem 1rem;
  color: var(--text);
  outline: none;
  transition: border-color 0.15s ease;
}
input.field:focus, select.field:focus, textarea.field:focus {
  border-color: var(--cyan);
}

.prose-light p, .prose-light li { color: var(--text-dim); line-height: 1.75; }
.prose-light h2, .prose-light h3, .prose-light h4 { color: var(--text); }
.prose-light a { color: var(--cyan); text-decoration: underline; text-underline-offset: 3px; }

footer .footer-link { color: var(--text-dim); }
footer .footer-link:hover { color: var(--cyan); }