:root {
  --background: 228 30% 8%;
  --foreground: 220 20% 96%;
  --primary: 267 84% 66%;
  --secondary: 191 88% 58%;
  --muted: 228 18% 18%;
  --destructive: 0 78% 58%;
  --border: 228 20% 22%;
  --card: 228 24% 12%;
  --shadow-sm: 0 8px 24px hsla(267, 84%, 20%, 0.16);
  --shadow-md: 0 16px 44px hsla(267, 84%, 14%, 0.24);
  --shadow-lg: 0 24px 70px hsla(267, 84%, 10%, 0.36);
  --transition-fast: 120ms ease;
  --transition-smooth: 240ms ease;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
}

.dark {
  --background: 228 30% 8%;
  --foreground: 220 20% 96%;
  --primary: 267 84% 66%;
  --secondary: 191 88% 58%;
  --muted: 228 18% 18%;
  --destructive: 0 78% 58%;
  --border: 228 20% 22%;
  --card: 228 24% 12%;
}

.light {
  --background: 220 26% 96%;
  --foreground: 228 30% 10%;
  --primary: 267 84% 52%;
  --secondary: 191 88% 38%;
  --muted: 220 24% 92%;
  --destructive: 0 72% 48%;
  --border: 220 16% 84%;
  --card: 0 0% 100%;
  --shadow-sm: 0 8px 24px hsla(228, 30%, 10%, 0.08);
  --shadow-md: 0 16px 44px hsla(228, 30%, 10%, 0.12);
  --shadow-lg: 0 24px 70px hsla(228, 30%, 10%, 0.16);
}

* {
  box-sizing: border-box;
}

html,
body,
#root {
  min-height: 100%;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, hsla(267, 84%, 66%, 0.16), transparent 28%),
    radial-gradient(circle at top right, hsla(191, 88%, 58%, 0.14), transparent 24%),
    hsl(var(--background));
  color: hsl(var(--foreground));
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

::selection {
  background: hsla(267, 84%, 66%, 0.28);
}

.app-shell {
  min-height: 100vh;
}

.glass {
  background: linear-gradient(180deg, hsla(228, 24%, 14%, 0.92), hsla(228, 24%, 12%, 0.88));
  border: 1px solid hsl(var(--border));
  box-shadow: var(--shadow-md);
}

.light .glass {
  background: linear-gradient(180deg, hsla(0, 0%, 100%, 0.92), hsla(220, 26%, 96%, 0.88));
}

.hero-grid {
  background-image:
    linear-gradient(hsla(228, 20%, 22%, 0.32) 1px, transparent 1px),
    linear-gradient(90deg, hsla(228, 20%, 22%, 0.32) 1px, transparent 1px);
  background-size: 32px 32px;
}

.light .hero-grid {
  background-image:
    linear-gradient(hsla(228, 20%, 30%, 0.14) 1px, transparent 1px),
    linear-gradient(90deg, hsla(228, 20%, 30%, 0.14) 1px, transparent 1px);
}

.gradient-text {
  background: linear-gradient(135deg, hsl(var(--foreground)), hsl(var(--secondary)) 45%, hsl(var(--primary)) 80%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.card-hover {
  transition: transform var(--transition-smooth), border-color var(--transition-smooth), background var(--transition-smooth), box-shadow var(--transition-smooth);
}

.card-hover:hover {
  transform: translateY(-3px);
  border-color: hsla(267, 84%, 66%, 0.45);
  box-shadow: var(--shadow-lg);
}

.sidebar-link {
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.sidebar-link:hover {
  transform: translateX(2px);
}

.scrollbar-thin::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

.scrollbar-thin::-webkit-scrollbar-thumb {
  background: hsla(228, 20%, 30%, 0.8);
  border-radius: 999px;
}

.scrollbar-thin::-webkit-scrollbar-track {
  background: transparent;
}

.skeleton {
  position: relative;
  overflow: hidden;
  background: hsla(228, 18%, 22%, 0.8);
}

.light .skeleton {
  background: hsla(220, 16%, 84%, 0.7);
}

.skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, hsla(220, 20%, 96%, 0.08), transparent);
  animation: shimmer 1.5s infinite;
}

.light .skeleton::after {
  background: linear-gradient(90deg, transparent, hsla(228, 30%, 10%, 0.06), transparent);
}

@keyframes shimmer {
  100% {
    transform: translateX(100%);
  }
}

.focus-ring:focus-visible {
  outline: 2px solid hsla(191, 88%, 58%, 0.85);
  outline-offset: 2px;
}

.canvas-grid {
  background-image:
    linear-gradient(hsla(228, 20%, 22%, 0.4) 1px, transparent 1px),
    linear-gradient(90deg, hsla(228, 20%, 22%, 0.4) 1px, transparent 1px);
  background-size: 24px 24px;
}

.light .canvas-grid {
  background-image:
    linear-gradient(hsla(228, 20%, 30%, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, hsla(228, 20%, 30%, 0.16) 1px, transparent 1px);
}

@media (max-width: 767px) {
  .mobile-safe {
    padding-bottom: 84px;
  }
}