/* === LINK BASIS Design System === */
/* 上海芯程涌动科技有限公司 */

:root {
  /* Primary Colors - Purple/Blue */
  --color-primary-50: #f5f3ff;
  --color-primary-100: #ede9fe;
  --color-primary-200: #ddd6fe;
  --color-primary-300: #c4b5fd;
  --color-primary-400: #a78bfa;
  --color-primary-500: #8b5cf6;
  --color-primary-600: #7c3aed;
  --color-primary-700: #6d28d9;
  --color-primary-800: #5b21b6;
  --color-primary-900: #4c1d95;

  /* Accent */
  --color-accent-400: #60a5fa;
  --color-accent-500: #3b82f6;
  --color-accent-600: #2563eb;
  --color-accent-700: #1d4ed8;

  /* Neutral Palette */
  --color-bg-dark: #0f172a;
  --color-bg-sidebar: #0f172a;
  --color-bg-card-dark: #1e293b;
  --color-bg-page: #f8fafc;
  --color-bg-white: #ffffff;
  --color-surface: #ffffff;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;

  /* Text */
  --color-text-primary: #0f172a;
  --color-text-secondary: #475569;
  --color-text-tertiary: #94a3b8;
  --color-text-inverse: #f8fafc;
  --color-text-muted: #cbd5e1;

  /* Semantic */
  --color-success: #22c55e;
  --color-success-bg: #f0fdf4;
  --color-warning: #f59e0b;
  --color-warning-bg: #fffbeb;
  --color-error: #ef4444;
  --color-error-bg: #fef2f2;
  --color-info: #3b82f6;
  --color-info-bg: #eff6ff;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #7c3aed 0%, #3b82f6 100%);
  --gradient-primary-hover: linear-gradient(135deg, #6d28d9 0%, #2563eb 100%);
  --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
  --gradient-login: linear-gradient(135deg, #4c1d95 0%, #1e3a5f 50%, #0f172a 100%);
  --gradient-card-purple: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-card-blue: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --gradient-card-pink: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-card-green: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
  --gradient-card-orange: linear-gradient(135deg, #fa8b5f 0%, #f59e0b 100%);

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

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;

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

  --leading-tight: 1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;

  /* Spacing */
  --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;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --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);
  --shadow-card-hover: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 4px 10px -6px rgba(0, 0, 0, 0.06);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout */
  --sidebar-width: 260px;
  --sidebar-width-collapsed: 0px;
  --header-height: 64px;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background: var(--color-bg-page);
  overflow: hidden;
  height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input {
  font-family: inherit;
  font-size: inherit;
}

ul, ol {
  list-style: none;
}

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

/* === Utility Classes === */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* === Focus Ring === */
*:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* === Scrollbar === */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-text-tertiary);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-secondary);
}