/* ========================================
   Design Tokens — HTML Uploader
   ======================================== */

:root {
  /* --- Brand --- */
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-light: #eff6ff;
  --color-primary-dark: #1e40af;

  /* --- Functional --- */
  --color-success: #16a34a;
  --color-success-light: #f0fdf4;
  --color-warning: #f59e0b;
  --color-warning-light: #fffbeb;
  --color-error: #dc2626;
  --color-error-light: #fef2f2;
  --color-info: #0ea5e9;

  /* --- Text --- */
  --color-text-primary: #111827;
  --color-text-secondary: #6b7280;
  --color-text-muted: #9ca3af;
  --color-text-inverse: #ffffff;

  /* --- Background --- */
  --color-bg-page: #f3f4f6;
  --color-bg-surface: #ffffff;
  --color-bg-hover: #f9fafb;
  --color-bg-disabled: #e5e7eb;

  /* --- Border --- */
  --color-border: #e5e7eb;
  --color-border-light: #f3f4f6;
  --color-border-focus: var(--color-primary);

  /* --- Spacing (8px base) --- */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* --- Typography --- */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;
  --font-size-xs: 12px;
  --font-size-sm: 13px;
  --font-size-base: 15px;
  --font-size-md: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 22px;
  --font-size-2xl: 28px;
  --font-size-3xl: 36px;

  /* --- Border Radius --- */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* --- Shadows --- */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07),
    0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08),
    0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06),
    0 1px 2px rgba(0, 0, 0, 0.04);

  /* --- Z-Index Layers --- */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;
  --z-tooltip: 600;

  /* --- Layout --- */
  --container-max-width: 800px;
  --header-height: 56px;

  /* --- Transitions --- */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.35s ease;
}