/* ========================================
   Accela Wiki - Modern CSS Styles
   ======================================== */

/* CSS Variables */
:root {
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-text: #1f2937;
  --color-text-secondary: #6b7280;
  --color-text-muted: #9ca3af;
  --color-bg: #ffffff;
  --color-bg-secondary: #f9fafb;
  --color-bg-tertiary: #f3f4f6;
  --color-border: #e5e7eb;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", Monaco, "Cascadia Code", Consolas, monospace;

  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --sidebar-width: 280px;
  --header-height: 60px;
  --content-max-width: 900px;

  --transition-fast: 150ms ease;
}

/* Reset & Base */
*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
}

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

  &:hover {
    color: var(--color-primary-hover);
  }
}

/* ========================================
   Wiki Container
   ======================================== */

.wiki-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;

  /* Header */
  header {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--header-height);
    padding: 0 24px;
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.9);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(8px);

    h1 {
      margin: 0;
      font-size: 1.25rem;
      font-weight: 400;
      line-height: 1;
      letter-spacing: -0.02em;

      a {
        color: var(--color-text);
        text-decoration: none;
        display: flex;
        align-items: center;
        gap: 8px;

        &::before {
          content: "";
          display: inline-block;
          width: 24px;
          height: 24px;
          background: url('/assets/images/logo.svg') no-repeat center / contain;
        }

        &:hover {
          color: var(--color-primary);
        }
      }
    }
  }

  /* Content Layout */
  > .content {
    display: flex;
    flex: 1;
    gap: 0;

    /* Sidebar */
    aside {
      width: var(--sidebar-width);
      padding: 24px;
      flex-shrink: 0;
      background: var(--color-bg-secondary);
      border-right: 1px solid var(--color-border);
      overflow-y: auto;
      position: sticky;
      top: var(--header-height);
      height: calc(100vh - var(--header-height));

      nav {
        display: flex;
        flex-direction: column;

        .home-link {
          display: block;
          padding: 8px 12px;
          margin-bottom: 16px;
          font-size: 0.875rem;
          font-weight: 500;
          color: var(--color-text);
          border-radius: var(--radius-md);
          transition: color var(--transition-fast), background-color var(--transition-fast);

          &:hover {
            color: var(--color-primary);
            background: var(--color-bg);
          }

          &.current {
            color: var(--color-primary);
            background: rgba(37, 99, 235, 0.1);
          }
        }
      }

      ul {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
        flex-direction: column;
        gap: 2px;

        ul {
          margin-left: 12px;
          padding-left: 12px;
          border-left: 1px solid var(--color-border);
          margin-top: 4px;
        }

        li {
          margin: 0;

          a,
          span {
            display: block;
            padding: 8px 12px;
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            border-radius: var(--radius-md);
            transition: color var(--transition-fast), background-color var(--transition-fast);
          }

          a:hover {
            color: var(--color-primary);
            background: var(--color-bg);
          }

          span {
            font-weight: 600;
            color: var(--color-text);
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            padding-top: 16px;
          }

          a.current {
            color: var(--color-primary);
            background: rgba(37, 99, 235, 0.1);
            font-weight: 500;
          }
        }
      }
    }

    /* Main Content */
    main {
      flex: 1;
      min-width: 0;
      padding: 40px 48px;
    }
  }
}

/* ========================================
   Article
   ======================================== */

article {
  max-width: var(--content-max-width);
  margin: 0 auto;

  > div[data-use-module="markdown"] {
    min-height: 60vh;
  }

  h1 {
    font-size: 2.25rem;
    font-weight: 700;
    line-height: 1.2;
    margin: 0 0 24px 0;
    letter-spacing: -0.02em;
  }

  h2 {
    font-size: 1.5rem;
    font-weight: 600;
    line-height: 1.3;
    margin: 48px 0 16px 0;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-border);
  }

  h3 {
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.4;
    margin: 32px 0 12px 0;
  }

  h4 {
    font-size: 1rem;
    font-weight: 600;
    margin: 24px 0 8px 0;
  }

  p {
    margin: 0 0 16px 0;
  }

  ul,
  ol {
    margin: 0 0 16px 0;
    padding-left: 24px;

    li {
      margin-bottom: 8px;

      &::marker {
        color: var(--color-text-muted);
      }
    }
  }

  a {
    text-decoration: underline;
    text-decoration-color: rgba(37, 99, 235, 0.3);
    text-underline-offset: 2px;

    &:hover {
      text-decoration-color: var(--color-primary);
    }
  }

  code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    padding: 2px 6px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-sm);
    color: #d946ef;
  }

  pre {
    margin: 0 0 24px 0;
    padding: 20px 24px;
    background: #1e293b;
    border-radius: var(--radius-lg);
    overflow-x: auto;
    font-size: 0.875rem;
    line-height: 1.7;

    code {
      padding: 0;
      background: none;
      color: #e2e8f0;
    }
  }

  blockquote {
    margin: 0 0 24px 0;
    padding: 16px 24px;
    background: var(--color-bg-secondary);
    border-left: 4px solid var(--color-primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: var(--color-text-secondary);

    p:last-child {
      margin-bottom: 0;
    }
  }

  table {
    width: 100%;
    margin: 0 0 24px 0;
    border-collapse: collapse;
    font-size: 0.875rem;

    th,
    td {
      padding: 12px 16px;
      text-align: left;
      border-bottom: 1px solid var(--color-border);
    }

    th {
      font-weight: 600;
      background: var(--color-bg-secondary);
    }

    tr:hover td {
      background: var(--color-bg-secondary);
    }
  }

  hr {
    margin: 48px 0;
    border: none;
    border-top: 1px solid var(--color-border);
  }

  img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: 16px 0;
  }
}

/* ========================================
   Footer
   ======================================== */

article footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);

  p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--color-text-muted);
  }

  time {
    color: var(--color-text-secondary);
  }
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 1024px) {
  :root {
    --sidebar-width: 240px;
  }

  .wiki-container > .content main {
    padding: 32px;
  }
}

@media (max-width: 768px) {
  .wiki-container > .content {
    flex-direction: column;

    aside {
      width: 100%;
      height: auto;
      position: relative;
      top: 0;
      border-right: none;
      border-bottom: 1px solid var(--color-border);
      padding: 16px;

      ul ul {
        margin-left: 8px;
        padding-left: 8px;
      }
    }

    main {
      padding: 24px 16px;
    }
  }

  article {
    h1 {
      font-size: 1.75rem;
    }

    h2 {
      font-size: 1.25rem;
      margin-top: 32px;
    }

    pre {
      padding: 16px;
      margin-left: -16px;
      margin-right: -16px;
      border-radius: 0;
    }
  }
}

/* ========================================
   Scrollbar & Selection
   ======================================== */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;

  &:hover {
    background: var(--color-text-muted);
  }
}

::selection {
  background: rgba(37, 99, 235, 0.2);
}

/* ========================================
   Print Styles
   ======================================== */

@media print {
  .wiki-container {
    header,
    > .content aside {
      display: none;
    }

    > .content main {
      padding: 0;
    }
  }

  article {
    max-width: none;
  }
}