:root {
  --bg: #131313;
  --panel: #1a1a1a;
  --surface: #212121;
  --row: #272727;
  --card: #2d2d2d;
  --border: #444444a8;
  --border-strong: #555555;
  --secondary: #656565;
  --primary: #737a81;
  --text: #ffffff;
  --text-muted: #d4d4d4;
  --color-accent: #EC6925;
  --color-accent-hover: #d4581a;
  --color-accent-light: rgba(236, 105, 37, 0.08);
  --color-accent-border: rgba(236, 105, 37, 0.25);
  --color-accent-dark: #b8461a;
  --color-success: #4ade80;
  --color-success-bg: rgba(74, 222, 128, 0.08);
  --color-error: #f87171;
  --color-error-bg: rgba(248, 113, 113, 0.08);
  --color-warning: #fbbf24;
  --color-info: #60a5fa;
  --radius-sm: 2px;
  --radius-md: 3px;
  --radius-lg: 4px;
  --radius-xl: 4px;
  --radius-full: 9999px;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.3);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.3);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.5), 0 8px 10px -6px rgb(0 0 0 / 0.3);
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

@tailwind base;
@tailwind components;
@tailwind utilities;

@layer base {
  html {
    scroll-behavior: smooth;
  }

  body {
    background-color: var(--bg);
    color: var(--text);
    font-family: "Inter", system-ui, sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 700;
  }

  *:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
  }

  a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
  }
}

@layer components {
  .skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    z-index: 100;
    padding: 0.5rem 1rem;
    background: var(--color-accent);
    color: #fff;
    border-radius: var(--radius-md);
  }

  .skip-link:focus {
    left: 0.5rem;
    top: 0.5rem;
  }

  .nav-link {
    position: relative;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.875rem;
    transition: color var(--transition-fast);
    padding: 0.5rem 0;
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .nav-link:hover {
    color: var(--color-accent);
  }

  .nav-link::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-fast);
  }

  .nav-link:hover::after,
  .nav-link.router-link-active::after {
    width: 100%;
  }

  .nav-link.router-link-active {
    color: var(--color-accent);
  }

  .btn-primary {
    background-color: var(--color-accent);
    color: #ffffff;
    border-radius: var(--radius-md);
    padding: 0.625rem 1.5rem;
    font-weight: 600;
    font-size: 0.875rem;
    transition: background-color var(--transition-fast);
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .btn-primary:hover {
    background-color: var(--color-accent-hover);
  }

  .btn-secondary {
    background-color: var(--surface);
    color: var(--text-muted);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 0.625rem 1.5rem;
    font-weight: 500;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .btn-secondary:hover {
    border-color: var(--color-accent-border);
    color: var(--text);
  }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.skeleton-shimmer {
  background: linear-gradient(90deg, var(--panel) 25%, var(--surface) 50%, var(--panel) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}