:root {
  --bg-primary: #fafafa;
  --bg-elevated: #ffffff;
  --bg-subtle: #f4f4f5;
  --border-color: #e4e4e7;
  --border-hover: #a1a1aa;
  --text-primary: #09090b;
  --text-muted: #52525b;
  --grid-line: rgba(24, 24, 27, 0.04);
  --glow-color: rgba(16, 185, 129, 0.08);
}

html.dark {
  --bg-primary: #0a0a0c;
  --bg-elevated: #121216;
  --bg-subtle: #18181e;
  --border-color: #27272a;
  --border-hover: #3f3f46;
  --text-primary: #f4f4f5;
  --text-muted: #a1a1aa;
  --grid-line: rgba(255, 255, 255, 0.025);
  --glow-color: rgba(16, 185, 129, 0.11);
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Subtle technical grid background */
.bg-tech-grid {
  background-size: 32px 32px;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
}

/* Radial ambient spotlight */
.ambient-glow {
  background: radial-gradient(650px circle at 50% 0px, var(--glow-color), transparent 80%);
}

/* Blinking terminal cursor */
@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}
.cursor-blink {
  animation: blink 1.1s step-end infinite;
}

/* Subtle card hover elevation & border luminescence */
.project-card {
  transition:
    transform 0.18s cubic-bezier(0.16, 1, 0.3, 1),
    border-color 0.18s ease,
    box-shadow 0.18s ease;
}
.project-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-hover);
  box-shadow: 0 12px 30px -10px rgba(0, 0, 0, 0.35);
}

/* Custom subtle scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--border-hover);
}

/* Line clamp utility */
.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}