/* SymGraph Shared Styles */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg-primary: #05070b;
  --bg-secondary: #080e1a;
  --bg-card: rgba(17, 24, 39, 0.55);
  --border-glass: rgba(148, 163, 184, 0.15);
  --text-primary: #e5e7eb;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --accent-cyan: #22d3ee;
  --accent-blue: #3b82f6;
  --accent-purple: #a78bfa;
  --accent-edge: #60a5fa;
  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

html {
  scroll-behavior: smooth;
}

body {
  background: radial-gradient(1200px 700px at 60% 40%, rgba(41, 117, 230, 0.10), transparent 60%),
              radial-gradient(1000px 600px at 40% 65%, rgba(150, 125, 225, 0.08), transparent 55%),
              linear-gradient(180deg, var(--bg-primary), var(--bg-secondary));
  font-family: var(--font-sans);
  color: var(--text-primary);
  min-height: 100vh;
}

canvas#bg {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

/* Scanlines overlay */
.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background: repeating-linear-gradient(
    180deg,
    hsla(0, 0%, 100%, 0.03),
    hsla(0, 0%, 100%, 0.03) 1px,
    transparent 2px,
    transparent 6px
  );
  opacity: 0.22;
  mix-blend-mode: overlay;
}

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: color 0.2s;
}

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

.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: 18px;
  padding: 2rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 2rem;
  background: rgba(7, 10, 16, 0.7);
  border-bottom: 1px solid var(--border-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar .logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.navbar .logo-link svg {
  width: 36px;
  height: 36px;
  filter: drop-shadow(0 0 10px rgba(110, 231, 255, 0.3));
}

.navbar .logo-link span {
  font-size: 1.25rem;
  font-weight: 700;
  color: white;
}

.navbar nav a {
  margin-left: 2rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
}

.navbar nav a:hover {
  color: var(--accent-cyan);
}

/* Footer */
.site-footer {
  position: relative;
  z-index: 10;
  padding: 2rem;
  border-top: 1px solid var(--border-glass);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.site-footer .footer-right {
  display: flex;
  gap: 1.5rem;
}

@media (max-width: 640px) {
  .site-footer {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }
}