@import "tailwindcss";
@import "tw-animate-css";

@custom-variant dark (&:is(.dark *));

@theme inline {
  --color-background: var(--background);
  --color-foreground: var(--foreground);
  --font-sans: var(--font-geist-sans);
  --font-mono: var(--font-geist-mono);
  --color-sidebar-ring: var(--sidebar-ring);
  --color-sidebar-border: var(--sidebar-border);
  --color-sidebar-accent-foreground: var(--sidebar-accent-foreground);
  --color-sidebar-accent: var(--sidebar-accent);
  --color-sidebar-primary-foreground: var(--sidebar-primary-foreground);
  --color-sidebar-primary: var(--sidebar-primary);
  --color-sidebar-foreground: var(--sidebar-foreground);
  --color-sidebar: var(--sidebar);
  --color-chart-5: var(--chart-5);
  --color-chart-4: var(--chart-4);
  --color-chart-3: var(--chart-3);
  --color-chart-2: var(--chart-2);
  --color-chart-1: var(--chart-1);
  --color-ring: var(--ring);
  --color-input: var(--input);
  --color-border: var(--border);
  --color-destructive: var(--destructive);
  --color-accent-foreground: var(--accent-foreground);
  --color-accent: var(--accent);
  --color-muted-foreground: var(--muted-foreground);
  --color-muted: var(--muted);
  --color-secondary-foreground: var(--secondary-foreground);
  --color-secondary: var(--secondary);
  --color-primary-foreground: var(--primary-foreground);
  --color-primary: var(--primary);
  --color-popover-foreground: var(--popover-foreground);
  --color-popover: var(--popover);
  --color-card-foreground: var(--card-foreground);
  --color-card: var(--card);
  --radius-sm: calc(var(--radius) - 4px);
  --radius-md: calc(var(--radius) - 2px);
  --radius-lg: var(--radius);
  --radius-xl: calc(var(--radius) + 4px);
}

:root {
  --radius: 0.625rem;
  --background: oklch(1 0 0);
  --foreground: oklch(0.145 0 0);
  --card: oklch(1 0 0);
  --card-foreground: oklch(0.145 0 0);
  --popover: oklch(1 0 0);
  --popover-foreground: oklch(0.145 0 0);
  --primary: oklch(0.205 0 0);
  --primary-foreground: oklch(0.985 0 0);
  --secondary: oklch(0.97 0 0);
  --secondary-foreground: oklch(0.205 0 0);
  --muted: oklch(0.97 0 0);
  --muted-foreground: oklch(0.556 0 0);
  --accent: oklch(0.97 0 0);
  --accent-foreground: oklch(0.205 0 0);
  --destructive: oklch(0.577 0.245 27.325);
  --border: oklch(0.922 0 0);
  --input: oklch(0.922 0 0);
  --ring: oklch(0.708 0 0);
  --chart-1: oklch(0.646 0.222 41.116);
  --chart-2: oklch(0.6 0.118 184.704);
  --chart-3: oklch(0.398 0.07 227.392);
  --chart-4: oklch(0.828 0.189 84.429);
  --chart-5: oklch(0.769 0.188 70.08);
  --sidebar: oklch(0.985 0 0);
  --sidebar-foreground: oklch(0.145 0 0);
  --sidebar-primary: oklch(0.205 0 0);
  --sidebar-primary-foreground: oklch(0.985 0 0);
  --sidebar-accent: oklch(0.97 0 0);
  --sidebar-accent-foreground: oklch(0.205 0 0);
  --sidebar-border: oklch(0.922 0 0);
  --sidebar-ring: oklch(0.708 0 0);
}

.dark {
  --background: oklch(0.145 0 0);
  --foreground: oklch(0.985 0 0);
  --card: oklch(0.205 0 0);
  --card-foreground: oklch(0.985 0 0);
  --popover: oklch(0.205 0 0);
  --popover-foreground: oklch(0.985 0 0);
  --primary: oklch(0.922 0 0);
  --primary-foreground: oklch(0.205 0 0);
  --secondary: oklch(0.269 0 0);
  --secondary-foreground: oklch(0.985 0 0);
  --muted: oklch(0.269 0 0);
  --muted-foreground: oklch(0.708 0 0);
  --accent: oklch(0.269 0 0);
  --accent-foreground: oklch(0.985 0 0);
  --destructive: oklch(0.704 0.191 22.216);
  --border: oklch(1 0 0 / 10%);
  --input: oklch(1 0 0 / 15%);
  --ring: oklch(0.556 0 0);
  --chart-1: oklch(0.488 0.243 264.376);
  --chart-2: oklch(0.696 0.17 162.48);
  --chart-3: oklch(0.769 0.188 70.08);
  --chart-4: oklch(0.627 0.265 303.9);
  --chart-5: oklch(0.645 0.246 16.439);
  --sidebar: oklch(0.205 0 0);
  --sidebar-foreground: oklch(0.985 0 0);
  --sidebar-primary: oklch(0.488 0.243 264.376);
  --sidebar-primary-foreground: oklch(0.985 0 0);
  --sidebar-accent: oklch(0.269 0 0);
  --sidebar-accent-foreground: oklch(0.985 0 0);
  --sidebar-border: oklch(1 0 0 / 10%);
  --sidebar-ring: oklch(0.556 0 0);
}

@layer base {
  * {
    @apply border-border outline-ring/50;
  }
  body {
    @apply bg-background text-foreground;
  }
}

/* ----------------------------------------------------------------------- */
/* NPT terminal aesthetic — slate-950 canvas, emerald/cyan glow            */
/* ----------------------------------------------------------------------- */
.npt-surface {
  background-color: oklch(0.17 0.018 240);
  background-image:
    radial-gradient(circle at 12% 8%, oklch(0.42 0.13 162 / 0.10), transparent 42%),
    radial-gradient(circle at 88% 92%, oklch(0.55 0.13 200 / 0.10), transparent 46%),
    linear-gradient(180deg, oklch(0.16 0.02 240), oklch(0.14 0.018 250));
}

.npt-grid-bg {
  background-image:
    linear-gradient(oklch(1 0 0 / 0.035) 1px, transparent 1px),
    linear-gradient(90deg, oklch(1 0 0 / 0.035) 1px, transparent 1px);
  background-size: 28px 28px;
}

.npt-glow-emerald {
  box-shadow:
    0 0 0 1px oklch(0.78 0.18 162 / 0.35),
    0 0 18px -2px oklch(0.78 0.18 162 / 0.45),
    inset 0 0 14px -8px oklch(0.78 0.18 162 / 0.5);
}
.npt-glow-cyan {
  box-shadow:
    0 0 0 1px oklch(0.78 0.13 200 / 0.35),
    0 0 18px -2px oklch(0.78 0.13 200 / 0.45),
    inset 0 0 14px -8px oklch(0.78 0.13 200 / 0.5);
}

.npt-text-glow {
  text-shadow: 0 0 8px oklch(0.82 0.18 162 / 0.55);
}
.npt-text-glow-cyan {
  text-shadow: 0 0 8px oklch(0.82 0.14 200 / 0.55);
}

.npt-scroll::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
.npt-scroll::-webkit-scrollbar-track {
  background: oklch(0.16 0.02 240);
}
.npt-scroll::-webkit-scrollbar-thumb {
  background: oklch(0.34 0.06 200);
  border-radius: 6px;
}
.npt-scroll::-webkit-scrollbar-thumb:hover {
  background: oklch(0.5 0.12 162);
}

/* flowing dashed link animation */
@keyframes npt-flow {
  to {
    stroke-dashoffset: -28;
  }
}
.npt-flow-line {
  stroke-dasharray: 3 6;
  animation: npt-flow 1.1s linear infinite;
}

@keyframes npt-pulse {
  0%, 100% { opacity: 0.55; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.12); }
}
.npt-pulse {
  animation: npt-pulse 2.4s ease-in-out infinite;
}

@keyframes npt-blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}
.npt-cursor::after {
  content: "▋";
  margin-left: 2px;
  animation: npt-blink 1.05s step-end infinite;
  color: oklch(0.82 0.18 162);
}

@keyframes npt-sweep {
  0% { transform: translateX(-120%); }
  100% { transform: translateX(120%); }
}
.npt-sweep {
  position: relative;
  overflow: hidden;
}
.npt-sweep::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    100deg,
    transparent 0%,
    oklch(0.82 0.18 162 / 0.18) 50%,
    transparent 100%
  );
  animation: npt-sweep 2.6s ease-in-out infinite;
}