/* ========================================================================
   AST-326 Design Tokens
   Source: AST-326 Dashboard Comp
   Primary: Purple/Indigo (#6d5dfc)
   Base unit: 4px
   ======================================================================== */

:root {
  --clr-primary-base: #6d5dfc;
  --clr-primary-hover: #5145cd;
  --clr-primary-active: #3f34b3;
  --clr-primary-text: #FFFFFF;
  --clr-primary-surface: #F3F0FF;
  --clr-primary-border: #CBC3FF;
  --clr-primary-muted: #E2DDFF;

  --clr-neutral-900: #1A1A1A;
  --clr-neutral-800: #333333;
  --clr-neutral-700: #4D4D4D;
  --clr-neutral-600: #666666;
  --clr-neutral-500: #808080;
  --clr-neutral-400: #999999;
  --clr-neutral-300: #B3B3B3;
  --clr-neutral-200: #CCCCCC;
  --clr-neutral-100: #E6E6E6;
  --clr-neutral-50: #F2F2F2;
  --clr-neutral-25: #F8F9FA;
  --clr-neutral-0: #FFFFFF;

  --clr-success-base: #1E8A3E;
  --clr-success-hover: #157A34;
  --clr-success-active: #0D6B2B;
  --clr-success-text: #FFFFFF;
  --clr-success-surface: #E6F5EA;
  --clr-success-border: #B8DFC6;
  --clr-success-muted: #D0EDD8;

  --clr-danger-base: #D32F2F;
  --clr-danger-hover: #B71C1C;
  --clr-danger-active: #9C1616;
  --clr-danger-text: #FFFFFF;
  --clr-danger-surface: #FDE8E8;
  --clr-danger-border: #F5BABA;
  --clr-danger-muted: #FBD0D0;

  --clr-warning-base: #E68A00;
  --clr-warning-surface: #FFF3E0;
  --clr-warning-border: #FFD699;
  --clr-warning-text: #7A4700;

  --clr-info-base: #0288D1;
  --clr-info-surface: #E1F0FA;
  --clr-info-border: #B3D9F2;
  --clr-info-text: #01579B;

  --bg-page: #EEF2F6;
  --bg-surface: #FFFFFF;
  --bg-raised: #F8F9FA;
  --bg-overlay: rgba(0, 0, 0, 0.4);
  --bg-input: #F9FBFF;

  --text-primary: var(--clr-neutral-800);
  --text-secondary: var(--clr-neutral-600);
  --text-muted: var(--clr-neutral-400);
  --text-inverse: var(--clr-neutral-0);
  --text-link: #6d5dfc;

  --border-default: #E0E0E0;
  --border-input: #B7C2D6;
  --border-focus: #6d5dfc;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.25rem;
  --text-xl: 1.5rem;
  --text-xxl: 2rem;

  --lh-tight: 1.2;
  --lh-normal: 1.5;
  --lh-relaxed: 1.75;

  --font-sans: 'Inter', 'Helvetica Neue', Helvetica, Arial, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;

  --weight-normal: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;

  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);

  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.4, 0, 0.68, 0.06);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);

  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;

  --container-max-sm: 480px;
  --container-max-md: 680px;
  --container-max-lg: 960px;
  --container-max-xl: 1200px;

  --target-min: 44px;
}

/* ===== Dark Mode (AST-326) ===== */
[data-theme="dark"], :root[data-theme="dark"] {
  --clr-primary-base: #8b7fff;
  --clr-primary-hover: #9d93ff;
  --clr-primary-active: #b0a8ff;
  --clr-primary-text: #FFFFFF;
  --clr-primary-surface: #1E1A3A;
  --clr-primary-border: #322D5A;
  --clr-primary-muted: #28234D;

  --clr-neutral-900: #FFFFFF;
  --clr-neutral-800: #E6E6E6;
  --clr-neutral-700: #CCCCCC;
  --clr-neutral-600: #999999;
  --clr-neutral-500: #808080;
  --clr-neutral-400: #666666;
  --clr-neutral-300: #4D4D4D;
  --clr-neutral-200: #404040;
  --clr-neutral-100: #333333;
  --clr-neutral-50: #2D2D2D;
  --clr-neutral-25: #3A3A3A;
  --clr-neutral-0: #1A1A1A;

  --clr-success-base: #4DCC70;
  --clr-success-hover: #5ED880;
  --clr-success-active: #6BE88E;
  --clr-success-text: #FFFFFF;
  --clr-success-surface: #1E3A1E;
  --clr-success-border: #2A5A2A;
  --clr-success-muted: #274D27;

  --clr-danger-base: #F05A5A;
  --clr-danger-hover: #FF6B6B;
  --clr-danger-active: #FF7D7D;
  --clr-danger-text: #FFFFFF;
  --clr-danger-surface: #3A1E1E;
  --clr-danger-border: #5A2A2A;
  --clr-danger-muted: #4D2727;

  --clr-warning-base: #FFB84D;
  --clr-warning-surface: #3A2E1E;
  --clr-warning-border: #5A4A2A;
  --clr-warning-text: #FFD699;

  --clr-info-base: #4FC3F7;
  --clr-info-surface: #1A2E3A;
  --clr-info-border: #2A4A5A;
  --clr-info-text: #B3E5FC;

  --bg-page: #1A1A1A;
  --bg-surface: #2D2D2D;
  --bg-raised: #3A3A3A;
  --bg-overlay: rgba(0, 0, 0, 0.6);
  --bg-input: #333333;

  --text-primary: #E6E6E6;
  --text-secondary: #999999;
  --text-muted: #666666;
  --text-inverse: #1A1A1A;
  --text-link: #8b7fff;

  --border-default: #404040;
  --border-input: #4D4D4D;
  --border-focus: #8b7fff;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.3);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.4);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.5);
}

/* ===== Legacy Compatibility Aliases ===== */
:root {
  --bg-primary: var(--bg-page);
  --bg-secondary: var(--bg-surface);
  --bg-tertiary: var(--bg-raised);
  --text-muted-legacy: var(--text-muted);
  --accent-color: var(--clr-primary-base);
  --border-color: var(--border-default);
  --shadow-color: rgba(0, 0, 0, 0.08);
  --shadow: var(--shadow-lg);
  --input-bg: var(--bg-input);
  --input-border: var(--border-input);
  --error-color: var(--clr-danger-base);
  --danger-color: var(--clr-danger-base);
  --success-color: var(--clr-success-base);
  --success-bg: var(--clr-success-surface);
  --success-border: var(--clr-success-border);
  --success-text: var(--text-primary);
  --success-hover: var(--clr-success-hover);
  --warning-color: var(--clr-warning-base);
  --warning-bg: var(--clr-warning-surface);
  --warning-text: var(--clr-warning-text);
  --warning-border: var(--clr-warning-border);
  --info-bg: var(--clr-info-surface);
  --info-text: var(--clr-info-text);
  --info-border: var(--clr-info-border);
  --danger-bg: var(--clr-danger-surface);
  --danger-border: var(--clr-danger-border);
  --primary-color: var(--clr-primary-base);
  --primary-color-dark: var(--clr-primary-hover);
  --primary-color-light: var(--clr-primary-muted);
  --primary-bg-light: var(--clr-primary-surface);
  --primary-text-dark: var(--clr-primary-active);
  --primary-border-light: var(--clr-primary-border);
  --card-background: var(--bg-surface);
  --table-header-bg: var(--bg-raised);
  --table-stripe-bg: rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] {
  --shadow-color: rgba(0, 0, 0, 0.3);
  --table-stripe-bg: rgba(255, 255, 255, 0.05);
}

/* ===== Viewport & Motion Safety Tokens ===== */
:root {
  --shell-min-height: 100dvh;
  --viewport-min-content: 280px;
  --viewport-safe-bottom: env(safe-area-inset-bottom, 0px);
  --viewport-safe-top: env(safe-area-inset-top, 0px);
  --focus-ring: 0 0 0 3px rgba(109, 93, 252, 0.2);
  --motion-duration-page: 0.4s;
  --motion-duration-enter: 0.3s;
  --motion-duration-stagger: 0.05s;
  --motion-duration-hover: 150ms;
}
[data-theme="dark"] {
  --focus-ring: 0 0 0 3px rgba(139, 127, 255, 0.25);
}