/* =============================================
   AI Proto Lab — Shared Foundation
   Imported by: landing.css (home) + all SOPs pages
   ============================================= */

/* ─── Fonts ─── */
@import url('https://fonts.googleapis.com/css2?family=Courier+Prime:ital,wght@0,400;0,700;1,400&family=DM+Sans:wght@400;500&family=Space+Grotesk:wght@400;500;600;700&family=Noto+Sans+KR:wght@500;700&display=swap');

/* ─── Canonical design tokens ─── */
:root {
  /* Core palette */
  --neon-pink:   #ff2d78;
  --neon-cyan:   #00f0ff;
  --neon-purple: #b24dff;
  --neon-gold:   #ffd700;
  --neon-green:  #39ff14;

  /* SOPs alias names → same canonical values */
  --pink:   var(--neon-pink);
  --cyan:   var(--neon-cyan);
  --purple: var(--neon-purple);

  /* Backgrounds */
  --bg-deep:        #0a0a1a;
  --bg-card:        #111128;
  --bg-card-border: #1e1e3a;

  /* SOPs alias names */
  --bg:      var(--bg-deep);
  --surface: var(--bg-card);
  --border:  rgba(255, 255, 255, 0.08);

  /* Text */
  --text-primary:   #e8e8f0;
  --text-secondary: #9090b0;
  --text-muted:     #555580;

  /* SOPs alias names */
  --text:  var(--text-primary);
  --muted: var(--text-secondary);
  --label: #9599b8;

  /* Typography */
  --font-main:  'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-ui:    'Space Grotesk', sans-serif;
  --font-body:  'DM Sans', sans-serif;
  --font-title: 'Courier Prime', monospace;

  /* Radius & easing */
  --radius:    16px;
  --radius-sm: 10px;
  --ease-out:  cubic-bezier(.23, 1, .32, 1);
}

/* ─── Reset ─── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ─── Base ─── */
html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-main);
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

/* ─── Topbar — same pattern as all AIProtoLab projects ─── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 1.25rem;
  background: rgba(10, 10, 26, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--bg-card-border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.back-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  transition: color 0.2s;
}
.back-link:hover { color: var(--neon-cyan); }
.topbar-section {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ─── Shared neon text utilities ─── */
.neon-pink {
  color: var(--neon-pink);
  text-shadow:
    0 0 7px  var(--neon-pink),
    0 0 20px var(--neon-pink),
    0 0 42px #ff2d7888;
}
.neon-cyan {
  color: var(--neon-cyan);
  text-shadow:
    0 0 7px  var(--neon-cyan),
    0 0 20px var(--neon-cyan),
    0 0 42px #00f0ff88;
}
.neon-purple {
  color: var(--neon-purple);
  text-shadow:
    0 0 7px  var(--neon-purple),
    0 0 20px var(--neon-purple),
    0 0 42px #b24dff88;
}

/* ─── Shared keyframes ─── */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes flicker {
  0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% { opacity: 1; }
  20%, 24%, 55% { opacity: .85; }
}

/* ─── Reduced motion ─── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}