/* ============================================================
   NEXUS — Design Tokens
   Aesthetic: mission-control / signal room. A quiet dark deck,
   instrumentation amber for what needs attention, cool cyan for
   flow, green for resolved, red for overdue. Type is technical:
   Space Grotesk for structure, Inter for reading, JetBrains Mono
   for anything that behaves like data (dates, counts, ids).
   ============================================================ */

:root{
  /* ---- Signal palette (theme-independent accents) ---- */
  --signal-amber: #F2A83D;
  --signal-amber-dim: #7A5A22;
  --signal-cyan: #4FD1E8;
  --signal-cyan-dim: #1F5B66;
  --signal-green: #34D399;
  --signal-green-dim: #1D6B4E;
  --signal-red: #F0555F;
  --signal-red-dim: #7A2B30;
  --signal-violet: #8B7CF6;

  /* ---- Priority mapping ---- */
  --priority-low: var(--signal-cyan);
  --priority-medium: var(--signal-amber);
  --priority-high: #F2794A;
  --priority-urgent: var(--signal-red);

  /* ---- Type ---- */
  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Consolas', monospace;

  --fs-xs: 0.72rem;
  --fs-sm: 0.82rem;
  --fs-base: 0.94rem;
  --fs-md: 1.05rem;
  --fs-lg: 1.3rem;
  --fs-xl: 1.7rem;
  --fs-2xl: 2.3rem;

  /* ---- Spacing scale ---- */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;

  /* ---- Shape ---- */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --notch: 10px; /* HUD cut-corner size */

  /* ---- Motion ---- */
  --ease: cubic-bezier(.4,0,.2,1);
  --dur-fast: 120ms;
  --dur-base: 220ms;
  --dur-slow: 420ms;

  /* ---- Elevation ---- */
  --shadow-sm: 0 1px 2px rgba(0,0,0,.35);
  --shadow-md: 0 6px 20px rgba(0,0,0,.35);
  --shadow-lg: 0 16px 48px rgba(0,0,0,.45);

  --sidebar-w: 240px;
  --sidebar-w-collapsed: 72px;
  --topbar-h: 64px;
}

/* ---------------- Dark (default) ---------------- */
:root,
[data-theme="dark"]{
  --bg: #0B0E14;
  --bg-elevated: #10141C;
  --surface: #151A23;
  --surface-hover: #1B222E;
  --surface-active: #202836;
  --border: #262C38;
  --border-strong: #333C4D;
  --text-primary: #E8EAED;
  --text-secondary: #A6ADBB;
  --text-muted: #6B7385;
  --text-on-accent: #0B0E14;
  --scrim: rgba(6,8,12,.72);
  --grid-line: rgba(255,255,255,.035);
}

/* ---------------- Light ---------------- */
[data-theme="light"]{
  --bg: #F3F4F7;
  --bg-elevated: #FFFFFF;
  --surface: #FFFFFF;
  --surface-hover: #EEF0F4;
  --surface-active: #E5E8EE;
  --border: #DCDFE6;
  --border-strong: #C6CAD4;
  --text-primary: #171A21;
  --text-secondary: #4B5266;
  --text-muted: #868EA0;
  --text-on-accent: #0B0E14;
  --scrim: rgba(20,22,30,.4);
  --grid-line: rgba(10,12,20,.035);
}