/* ========================================================================
   SpectrHQ — Design System
   Premium B2B document translation platform
   ======================================================================== */

/* ── Design Tokens ──────────────────────────────────────────────────────── */
:root {
  color-scheme: light;
  /* Brand */
  --color-primary: #1e1f26;
  --color-accent: #d200ff;
  --color-accent-hover: #b300db;
  --color-accent-light: rgba(210, 0, 255, 0.09);
  --color-accent-ring: rgba(210, 0, 255, 0.26);

  /* Semantic */
  --color-success: #10b981;
  --color-success-light: rgba(16, 185, 129, 0.1);
  --color-warning: #f59e0b;
  --color-warning-light: rgba(245, 158, 11, 0.1);
  --color-error: #ef4444;
  --color-error-light: rgba(239, 68, 68, 0.08);

  /* Surfaces */
  --color-bg: #fafafa;
  --color-surface: #ffffff;
  --color-surface-muted: #f4f5f7;
  --color-text: #111827;
  --color-text-secondary: #6b7280;
  --color-text-tertiary: #9ca3af;
  --color-border: #e5e7eb;
  --color-border-strong: #d1d5db;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', monospace;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.03);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

  /* Layout */
  --sidebar-width: 260px;
  --sidebar-collapsed-width: 76px;
  --content-max-width: 1100px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

:root[data-theme='dark'] {
  color-scheme: dark;
  --color-primary: #f4f6fb;
  --color-accent: #d200ff;
  --color-accent-hover: #ec7bff;
  --color-accent-light: rgba(210, 0, 255, 0.16);
  --color-accent-ring: rgba(210, 0, 255, 0.34);

  --color-bg: #0f1117;
  --color-surface: #161924;
  --color-surface-muted: #1d2230;
  --color-text: #eff2fa;
  --color-text-secondary: #a8b0c4;
  --color-text-tertiary: #7e889e;
  --color-border: #2a3246;
  --color-border-strong: #3a445c;

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.38);
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 18px rgba(0, 0, 0, 0.32);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.38);
  --shadow-xl: 0 22px 48px rgba(0, 0, 0, 0.5);
}


/* ── Reset & Base ───────────────────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
}

img, svg {
  display: block;
  max-width: 100%;
}

button {
  font-family: inherit;
  cursor: pointer;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

::selection {
  background: var(--color-accent);
  color: #fff;
}

/* Focus ring — all interactive elements */
:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--color-accent-ring);
}

/* Scrollbar (webkit) */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-border-strong);
}


/* ── Utility ────────────────────────────────────────────────────────────── */
.hidden {
  display: none !important;
}

.accent {
  color: var(--color-accent);
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.text-muted {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  line-height: 1.5;
}