@import "tailwindcss";

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

/*
 * GMW — Linear Precision Clean Dark Design System
 *
 * Inspired by Linear's ultra-precise, dark-mode native interface.
 * Built on achromatic luminance hierarchy, near-black canvas (#08090a),
 * ultra-crisp hairline borders, subtle indigo/violet accents (#5e6ad2 / #7170ff),
 * and buttery smooth GSAP-driven micro-interactions.
 */

@theme {
  /* ── Canvas & Surface Stack (Luminance Stacking) ── */
  --color-canvas: #08090a;
  --color-canvas-2: #0f1011;
  --color-surface: rgba(255, 255, 255, 0.035);
  --color-surface-2: rgba(255, 255, 255, 0.06);
  --color-surface-elevated: #191a1b;
  --color-surface-hover: rgba(255, 255, 255, 0.08);

  /* ── Typography & Ink ── */
  --color-ink: #f7f8f8;
  --color-ink-soft: #d0d6e0;
  --color-ink-muted: #8a8f98;
  --color-ink-faint: #62666d;

  /* ── Hairline Structural Borders ── */
  --color-hairline: rgba(255, 255, 255, 0.08);
  --color-hairline-subtle: rgba(255, 255, 255, 0.05);
  --color-hairline-focus: rgba(255, 255, 255, 0.16);
  --hairline-w: 1px;

  /* ── Brand & Accent Signals (Subdued Precision) ── */
  --color-brand: #5e6ad2;
  --color-brand-accent: #7170ff;
  --color-brand-hover: #828fff;
  --color-brand-subtle: rgba(94, 106, 210, 0.15);

  --color-signal: #7170ff;
  --color-signal-ink: #ffffff;
  --color-signal-glow: rgba(113, 112, 255, 0.25);

  /* Semantic status colors (crisp, purposeful) */
  --color-status-success: #10b981;
  --color-status-success-subtle: rgba(16, 185, 129, 0.15);
  --color-amber: #f59e0b;
  --color-amber-subtle: rgba(245, 158, 11, 0.15);
  --color-vermilion: #f43f5e;
  --color-vermilion-subtle: rgba(244, 63, 94, 0.15);
  --color-vermilion-glow: rgba(244, 63, 94, 0.3);

  --color-ring: var(--color-brand-accent);

  /* ── Typography Stack ── */
  --font-sans: var(--font-inter), "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: var(--font-jetbrains-mono), "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --font-display: var(--font-inter), "Inter", -apple-system, BlinkMacSystemFont, sans-serif;

  /* ── Radii (Refined, tighter precision) ── */
  --radius-r: 10px;
  --radius-r-panel: 8px;
  --radius-r-control: 6px;
  --radius-r-pill: 9999px;
}

/* ── Light Theme Fallbacks ── */
.light {
  color-scheme: light;
  --color-canvas: #f7f8f8;
  --color-canvas-2: #f3f4f5;
  --color-surface: rgba(0, 0, 0, 0.03);
  --color-surface-2: rgba(0, 0, 0, 0.05);
  --color-surface-elevated: #ffffff;
  --color-surface-hover: rgba(0, 0, 0, 0.06);

  --color-ink: #171717;
  --color-ink-soft: #404040;
  --color-ink-muted: #737373;
  --color-ink-faint: #a3a3a3;

  --color-hairline: rgba(0, 0, 0, 0.08);
  --color-hairline-subtle: rgba(0, 0, 0, 0.04);
  --color-hairline-focus: rgba(0, 0, 0, 0.18);
}

@layer base {
  * {
    @apply border-transparent;
    font-feature-settings: "cv01", "ss03";
  }

  html {
    @apply font-sans antialiased scroll-smooth;
    background-color: var(--color-canvas);
    color: var(--color-ink);
  }

  body {
    @apply bg-canvas text-ink font-sans antialiased;
    min-height: 100dvh;
  }

  ::selection {
    background: rgba(113, 112, 255, 0.28);
    color: #ffffff;
  }

  /* Linear-style minimalist slim scrollbar */
  ::-webkit-scrollbar {
    width: 6px;
    height: 6px;
  }
  ::-webkit-scrollbar-track {
    background: transparent;
  }
  ::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 9999px;
  }
  ::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.22);
  }

  :focus-visible {
    outline: 2px solid var(--color-brand-accent);
    outline-offset: 2px;
  }
}

@layer components {
  /* Precision Surface Panel (Linear Card) */
  .glass {
    background: var(--color-surface);
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-r);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow:
      0 1px 0 0 rgba(255, 255, 255, 0.03) inset,
      0 12px 32px -16px rgba(0, 0, 0, 0.7);
    transition: border-color 0.2s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.2s ease;
  }

  .glass-2 {
    background: var(--color-surface-2);
    border: 1px solid var(--color-hairline-subtle);
    border-radius: var(--radius-r-panel);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
  }

  /* Linear-style subtle interactive hover card */
  .linear-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-r-panel);
    transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .linear-card:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.12);
    transform: translateY(-1px);
  }

  /* Precision Eyebrow Header */
  .eyebrow {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-ink-muted);
  }

  /* Micro-Pill Tag */
  .pill {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.18rem 0.55rem;
    border-radius: var(--radius-r-pill);
    font-size: 0.7rem;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--color-hairline);
    color: var(--color-ink-soft);
  }

  .mono {
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
  }

  /* Display Typography (Compressed Linear-style tracking) */
  .display {
    font-family: var(--font-sans);
    font-weight: 600;
    letter-spacing: -0.035em;
    line-height: 1.05;
  }
}

@layer utilities {
  .text-signal { color: var(--color-brand-accent); }
  .text-brand { color: var(--color-brand-accent); }
  .text-amber { color: var(--color-amber); }
  .text-vermilion { color: var(--color-vermilion); }
  .text-success { color: var(--color-status-success); }
  .text-ink-soft { color: var(--color-ink-soft); }
  .text-ink-muted { color: var(--color-ink-muted); }
  .text-ink-faint { color: var(--color-ink-faint); }

  .hero-clamp {
    font-size: clamp(1.85rem, 1.2rem + 3.5vw, 2.5rem);
    letter-spacing: -0.04em;
    font-weight: 600;
  }

  .glow-signal {
    text-shadow: 0 0 16px var(--color-signal-glow);
  }

  .ring-focus {
    transition: box-shadow 0.18s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.18s ease;
  }
  .ring-focus:hover {
    border-color: rgba(255, 255, 255, 0.16);
  }
  .ring-focus:focus-visible {
    box-shadow: 0 0 0 2px var(--color-brand-accent);
  }
}

/* ═══ Micro Navigation Elements ═══ */
.nav-dock-item {
  position: relative;
  transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}
.nav-dock-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-ink);
}
.nav-dock-item.is-active {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

/* ── Keyframes ── */
@keyframes spin-disc {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
@keyframes pulse-ring {
  0% { transform: scale(0.85); opacity: 0.8; }
  100% { transform: scale(2.2); opacity: 0; }
}

.animate-spin-disc { animation: spin-disc 10s linear infinite; }
.animate-pulse-ring { animation: pulse-ring 2s cubic-bezier(0.16, 1, 0.3, 1) infinite; }

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  .animate-spin-disc,
  .animate-pulse-ring {
    animation: none !important;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  html { scroll-behavior: auto; }
}