/* ============================================
   NEXUS AUTOPARTS — Design Tokens
   Dual Theme: Industrial (A) & Modern (B)
   ============================================ */

/* ---- Base Reset ---- */
:root {
  --base-unit: 4px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Spacing scale (4px grid) */
  --space-0: 0;
  --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;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  /* Breakpoints (reference only — use in media queries) */
  /* --bp-sm: 640px;  --bp-md: 768px;  --bp-lg: 1024px;  --bp-xl: 1280px;  --bp-2xl: 1536px; */

  /* Transition */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Z-index scale */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal-backdrop: 300;
  --z-modal: 400;
  --z-toast: 500;
  --z-tooltip: 600;
}

/* ============================================
   TEMA A — Industrial Robusto (Dark)
   ============================================ */
[data-theme="industrial"], :root {
  /* --- Surfaces --- */
  --color-bg-primary: #0d0d0d;
  --color-bg-secondary: #1a1a1a;
  --color-bg-tertiary: #252525;
  --color-bg-elevated: #2e2e2e;
  --color-bg-hover: #333333;
  --color-bg-input: #1a1a1a;
  --color-bg-card: #1a1a1a;

  /* --- Accent --- */
  --color-accent: #F5A623;
  --color-accent-hover: #FFB84D;
  --color-accent-active: #D4900E;
  --color-accent-subtle: rgba(245, 166, 35, 0.12);
  --color-accent-muted: rgba(245, 166, 35, 0.25);

  /* --- Text --- */
  --color-text-primary: #FFFFFF;
  --color-text-secondary: #CCCCCC;
  --color-text-tertiary: #888888;
  --color-text-disabled: #555555;
  --color-text-on-accent: #000000;
  --color-text-link: #F5A623;

  /* --- Borders --- */
  --color-border: #333333;
  --color-border-hover: #444444;
  --color-border-focus: #F5A623;
  --color-border-input: #404040;

  /* --- Semantic --- */
  --color-success: #34D399;
  --color-success-bg: rgba(52, 211, 153, 0.12);
  --color-warning: #FBBF24;
  --color-warning-bg: rgba(251, 191, 36, 0.12);
  --color-error: #EF4444;
  --color-error-bg: rgba(239, 68, 68, 0.12);
  --color-info: #60A5FA;
  --color-info-bg: rgba(96, 165, 250, 0.12);

  /* --- Shadows (dark theme = subtle glow) --- */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.6);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.7);
  --shadow-accent: 0 0 20px rgba(245, 166, 35, 0.15);
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.4);

  /* --- Typography --- */
  --font-heading: 'Barlow Condensed', sans-serif;
  --font-body: 'Barlow', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  /* Heading weights (Barlow Condensed) */
  --heading-weight: 800;
  --heading-weight-sub: 600;

  /* Type scale */
  --text-xs: 0.75rem;     /* 12px */
  --text-sm: 0.875rem;    /* 14px */
  --text-base: 1rem;      /* 16px */
  --text-lg: 1.125rem;    /* 18px */
  --text-xl: 1.25rem;     /* 20px */
  --text-2xl: 1.5rem;     /* 24px */
  --text-3xl: 1.875rem;   /* 30px */
  --text-4xl: 2.25rem;    /* 36px */
  --text-5xl: 3rem;       /* 48px */
  --text-6xl: 3.75rem;    /* 60px */

  --leading-tight: 1.15;
  --leading-normal: 1.5;
  --leading-relaxed: 1.75;

  --tracking-tight: -0.02em;
  --tracking-normal: 0;
  --tracking-wide: 0.05em;
  --tracking-wider: 0.1em;

  /* --- Component-specific --- */
  --header-height: 64px;
  --sidebar-width: 260px;
  --sidebar-collapsed: 72px;
  --input-height-sm: 32px;
  --input-height-md: 40px;
  --input-height-lg: 48px;

  /* --- Radius (Industrial = sharper) --- */
  --component-radius: var(--radius-sm);
  --card-radius: var(--radius-md);
  --button-radius: var(--radius-sm);
  --input-radius: var(--radius-sm);
  --badge-radius: var(--radius-sm);
  --modal-radius: var(--radius-md);
}

/* ============================================
   TEMA B — Tecnico Moderno (Light)
   ============================================ */
[data-theme="modern"] {
  /* --- Surfaces --- */
  --color-bg-primary: #FFFFFF;
  --color-bg-secondary: #F8F9FF;
  --color-bg-tertiary: #F0F1F8;
  --color-bg-elevated: #FFFFFF;
  --color-bg-hover: #EDEEF6;
  --color-bg-input: #FFFFFF;
  --color-bg-card: #FFFFFF;

  /* --- Accent --- */
  --color-accent: #FF6B35;
  --color-accent-hover: #FF8555;
  --color-accent-active: #E55A25;
  --color-accent-subtle: rgba(255, 107, 53, 0.08);
  --color-accent-muted: rgba(255, 107, 53, 0.18);

  /* --- Text --- */
  --color-text-primary: #1a1a2e;
  --color-text-secondary: #4a4a6a;
  --color-text-tertiary: #8888a8;
  --color-text-disabled: #bbbbcc;
  --color-text-on-accent: #FFFFFF;
  --color-text-link: #FF6B35;

  /* --- Borders --- */
  --color-border: #E2E3EE;
  --color-border-hover: #C8C9D8;
  --color-border-focus: #FF6B35;
  --color-border-input: #D0D1DE;

  /* --- Semantic --- */
  --color-success: #10B981;
  --color-success-bg: rgba(16, 185, 129, 0.08);
  --color-warning: #F59E0B;
  --color-warning-bg: rgba(245, 158, 11, 0.08);
  --color-error: #EF4444;
  --color-error-bg: rgba(239, 68, 68, 0.08);
  --color-info: #3B82F6;
  --color-info-bg: rgba(59, 130, 246, 0.08);

  /* --- Shadows --- */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
  --shadow-accent: 0 4px 16px rgba(255, 107, 53, 0.2);
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.04);

  /* --- Typography --- */
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Poppins', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --heading-weight: 700;
  --heading-weight-sub: 600;

  /* --- Radius (Modern = rounder) --- */
  --component-radius: var(--radius-md);
  --card-radius: var(--radius-lg);
  --button-radius: var(--radius-md);
  --input-radius: var(--radius-md);
  --badge-radius: var(--radius-full);
  --modal-radius: var(--radius-xl);
}