@import "tailwindcss";
@plugin "@tailwindcss/typography";

/*
  MCPedia Design Philosophy: Archival Precision & Technical Monolith
  - Strict monochromatic foundation (Graphite, Zinc, Charcoal)
  - Zero decorative AI gradients or blurred blobs
  - Typographic hierarchy: Strong contrast, razor-sharp hairline borders, monospace telemetry
  - Functional signal indicators (Status Green, Alert Amber, Critical Coral)
*/

/* Light mode defaults (:root) - Technical Paper / Archival Slate */
:root {
  color-scheme: light;
  --bg-app: #f9fafb;
  --bg-surface: #ffffff;
  --bg-surface-hover: #f3f4f6;
  --bg-elevated: #f3f4f6;
  --bg-elevated-hover: #e5e7eb;
  --border-color: #e5e7eb;
  --border-subtle: #f3f4f6;
  --border-card: #e5e7eb;

  --text-primary: #111827;
  --text-secondary: #374151;
  --text-muted: #6b7280;
  --text-dim: #9ca3af;

  /* Accent: Precision Technical Ink */
  --brand: #18181b;
  --brand-hover: #27272a;
  --brand-fg: #ffffff;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;

  --nav-bg: rgba(255, 255, 255, 0.92);

  /* Code & Syntax (Light Mode) */
  --code-bg: #f3f4f6;
  --code-block-bg: #f8fafc;
  --code-header-bg: #f1f5f9;
  --border-code: #e2e8f0;
  --code-button-bg: #ffffff;
  --code-button-hover-bg: #e2e8f0;
  --pre-text: #1e293b;
  --code-inline-bg: #f1f5f9;
  --code-inline-text: #0f172a;
  --code-inline-border: #e2e8f0;

  --table-zebra: rgba(243, 244, 246, 0.5);
  --scrollbar-thumb: #d1d5db;
  --scrollbar-thumb-hover: #9ca3af;
  --shadow-card: 0 1px 2px 0 rgba(0, 0, 0, 0.04);

  /* Syntax Highlighting */
  --hl-keyword: #cf222e;
  --hl-string: #0a3069;
  --hl-title: #6f42c1;
  --hl-attr: #953800;
  --hl-number: #0550ae;
  --hl-comment: #6e7781;
  --hl-builtin: #0969da;
  --hl-operator: #57606a;
  --hl-variable: #953800;
  --hl-meta: #6e7781;
}

/* Dark mode overrides (html.dark) - Deep Basalt / Precision Carbon */
html.dark {
  color-scheme: dark;
  --bg-app: #090a0c;
  --bg-surface: #101216;
  --bg-surface-hover: #16181f;
  --bg-elevated: #161920;
  --bg-elevated-hover: #1e222b;
  --border-color: #222630;
  --border-subtle: #181b22;
  --border-card: #222630;

  --text-primary: #f3f4f6;
  --text-secondary: #d1d5db;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;

  /* Accent: Monolithic Snow Ink */
  --brand: #f3f4f6;
  --brand-hover: #ffffff;
  --brand-fg: #090a0c;
  --accent: #60a5fa;
  --accent-hover: #93c5fd;

  --nav-bg: rgba(9, 10, 12, 0.90);

  /* Code & Syntax (Dark Mode) */
  --code-bg: #0c0e12;
  --code-block-bg: #0c0e12;
  --code-header-bg: #14171d;
  --border-code: #222630;
  --code-button-bg: #181b22;
  --code-button-hover-bg: #222630;
  --pre-text: #e5e7eb;
  --code-inline-bg: #161920;
  --code-inline-text: #e5e7eb;
  --code-inline-border: #222630;

  --table-zebra: rgba(255, 255, 255, 0.015);
  --scrollbar-thumb: #222630;
  --scrollbar-thumb-hover: #374151;
  --shadow-card: none;

  /* Syntax Highlighting */
  --hl-keyword: #ff7b72;
  --hl-string: #a5d6ff;
  --hl-title: #d2a8ff;
  --hl-attr: #ffa657;
  --hl-number: #79c0ff;
  --hl-comment: #8b949e;
  --hl-builtin: #7ee787;
  --hl-operator: #8b949e;
  --hl-variable: #ffa657;
  --hl-meta: #8b949e;
}

@theme inline {
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Monaco, Consolas, monospace;

  --color-background: var(--bg-app);
  --color-surface: var(--bg-surface);
  --color-surface-hover: var(--bg-surface-hover);
  --color-elevated: var(--bg-elevated);
  --color-elevated-hover: var(--bg-elevated-hover);
  --color-border: var(--border-color);
  --border-code: var(--border-code);
  --color-border-subtle: var(--border-subtle);

  --color-text-primary: var(--text-primary);
  --color-text-secondary: var(--text-secondary);
  --color-text-tertiary: var(--text-muted);
  --color-text-quaternary: var(--text-dim);

  --color-brand: var(--brand);
  --color-brand-hover: var(--brand-hover);
  --color-accent: var(--accent);
  --color-accent-hover: var(--accent-hover);
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-app);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-feature-settings: "cv01", "ss03", "zero", "calt";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.15s ease, color 0.15s ease;
  min-height: 100vh;
}

/* Custom hairline scrollbar */
::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 2px;
}

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

/* Glass navigation */
.glass-nav {
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

/* Tactical Architectural Callouts */
.callout {
  border-left-width: 3px;
  border-radius: 0 0.375rem 0.375rem 0;
  padding: 0.875rem 1.125rem;
  margin: 1.5rem 0;
}

.callout-note {
  border-left-color: var(--text-muted);
  background-color: var(--bg-elevated);
}

.callout-tip {
  border-left-color: #10b981;
  background-color: rgba(16, 185, 129, 0.06);
}

.callout-important {
  border-left-color: #3b82f6;
  background-color: rgba(59, 130, 246, 0.06);
}

.callout-warning {
  border-left-color: #f59e0b;
  background-color: rgba(245, 158, 11, 0.06);
}

.callout-caution {
  border-left-color: #ef4444;
  background-color: rgba(239, 68, 68, 0.06);
}

/* Prose Typography */
.prose {
  color: var(--text-secondary) !important;
  max-width: 100% !important;
}

.prose h1, .prose h2, .prose h3, .prose h4, .prose strong {
  color: var(--text-primary) !important;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.prose a {
  color: var(--text-primary) !important;
  text-decoration: underline;
  text-decoration-color: var(--border-color);
  text-underline-offset: 3px;
  font-weight: 500;
  transition: all 0.15s ease;
}

.prose a:hover {
  text-decoration-color: var(--text-primary);
}

.prose table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 2rem 0;
  font-size: 0.875rem;
  border-radius: 0.5rem;
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
}

.prose th,
.prose td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.prose th {
  background: var(--bg-elevated);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--font-mono);
}

.prose td {
  color: var(--text-secondary);
}

.prose tbody tr:last-child td {
  border-bottom: none;
}

.prose tbody tr:hover {
  background: var(--bg-elevated-hover);
}

.prose tbody tr:nth-child(even) {
  background: var(--table-zebra);
}

.prose pre {
  background: var(--code-block-bg) !important;
  color: var(--pre-text) !important;
  border: 1px solid var(--border-code);
  border-radius: 0.5rem;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  position: relative;
  font-family: var(--font-mono);
  line-height: 1.6;
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.875em;
}

.prose :not(pre) > code {
  background: var(--code-inline-bg);
  color: var(--code-inline-text);
  border: 1px solid var(--code-inline-border);
  padding: 0.15rem 0.35rem;
  border-radius: 0.25rem;
  font-weight: 500;
}

.prose :not(pre) > code::before,
.prose :not(pre) > code::after {
  content: none !important;
}

.prose blockquote {
  border-left: 2px solid var(--text-muted);
  background: var(--bg-elevated);
  border-radius: 0 0.375rem 0.375rem 0;
  margin: 1.5em 0;
  padding: 0.75em 1.25em;
  font-style: normal;
  color: var(--text-secondary);
}

.prose hr {
  border-color: var(--border-color);
  margin: 2.5rem 0;
}

/* Syntax Highlighting */
.hljs {
  color: var(--pre-text);
  background: transparent;
}

.hljs-keyword,
.hljs-selector-tag,
.hljs-subst,
.hljs-doctag {
  color: var(--hl-keyword);
  font-weight: 600;
}

.hljs-string,
.hljs-regexp,
.hljs-link {
  color: var(--hl-string);
}

.hljs-title,
.hljs-title.function_,
.hljs-title.class_,
.hljs-section {
  color: var(--hl-title);
  font-weight: 600;
}

.hljs-attr,
.hljs-attribute,
.hljs-variable,
.hljs-template-variable,
.hljs-type {
  color: var(--hl-attr);
}

.hljs-number,
.hljs-literal {
  color: var(--hl-number);
}

.hljs-comment,
.hljs-quote {
  color: var(--hl-comment);
  font-style: italic;
}

.hljs-built_in,
.hljs-symbol,
.hljs-bullet {
  color: var(--hl-builtin);
}

.hljs-meta,
.hljs-meta .hljs-keyword,
.hljs-meta .hljs-string {
  color: var(--hl-meta);
}

.hljs-params {
  color: var(--pre-text);
}

.hljs-punctuation,
.hljs-operator {
  color: var(--hl-operator);
}

.hljs-addition {
  color: #10b981;
  background-color: rgba(16, 185, 129, 0.15);
  border-radius: 2px;
}

.hljs-deletion {
  color: #ef4444;
  background-color: rgba(239, 68, 68, 0.15);
  border-radius: 2px;
}

.hljs-emphasis {
  font-style: italic;
}

.hljs-strong {
  font-weight: bold;
}

/* Transitions */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn 0.18s ease-out forwards;
}

/* Print & PDF Export Stylesheet */
@media print {
  @page {
    size: A4 portrait;
    margin: 10mm 12mm 10mm 12mm;
  }

  *, *::before, *::after {
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
    box-sizing: border-box !important;
  }

  html, body {
    background-color: #ffffff !important;
    color: #0f172a !important;
    font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif !important;
    font-size: 8.5pt !important;
    line-height: 1.35 !important;
    margin: 0 !important;
    padding: 0 !important;
    width: 100% !important;
  }

  /* Hide navigation, toolbars, sidebar, and web UI controls */
  header.site-header,
  header.glass-nav,
  aside.site-sidebar,
  aside:not(.print-include),
  footer,
  nav.site-header,
  .no-print,
  .export-toolbar,
  #a11y-live-region {
    display: none !important;
  }

  main,
  .print-container,
  main > div {
    max-width: 100% !important;
    width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    border: none !important;
    box-shadow: none !important;
    background: transparent !important;
  }

  /* Explicit page break classes */
  .page-break-before,
  .chapter-page {
    break-before: page !important;
    page-break-before: always !important;
  }

  /* Prevent awkward mid-element page breaks */
  .avoid-break-inside,
  .code-block-wrapper,
  .code-block-container,
  .callout,
  blockquote,
  table,
  tr,
  img {
    break-inside: avoid !important;
    page-break-inside: avoid !important;
  }

  /* Prevent headings from being orphaned at the bottom of pages */
  .challenge-header,
  h1, h2, h3, h4, h5, h6 {
    break-after: avoid !important;
    page-break-after: avoid !important;
  }

  /* Dense / compact challenge flow */
  .challenge-entry {
    break-inside: auto !important;
    page-break-inside: auto !important;
  }

  /* Compact typography & prose overrides */
  p,
  .prose p {
    margin-top: 0 !important;
    margin-bottom: 2.5pt !important;
    font-size: 8.5pt !important;
    line-height: 1.35 !important;
    color: #1e293b !important;
  }

  h1,
  .prose h1 {
    font-size: 13pt !important;
    line-height: 1.2 !important;
    font-weight: 800 !important;
    color: #020617 !important;
    margin-top: 6pt !important;
    margin-bottom: 2pt !important;
    padding-bottom: 1pt !important;
    border-bottom: 1px solid #cbd5e1 !important;
  }

  h2,
  .prose h2 {
    font-size: 10.5pt !important;
    line-height: 1.2 !important;
    font-weight: 700 !important;
    color: #020617 !important;
    margin-top: 5pt !important;
    margin-bottom: 2pt !important;
    padding-bottom: 1pt !important;
    border-bottom: 1px solid #e2e8f0 !important;
  }

  h3,
  .prose h3 {
    font-size: 9.5pt !important;
    line-height: 1.2 !important;
    font-weight: 700 !important;
    color: #0f172a !important;
    margin-top: 4pt !important;
    margin-bottom: 1.5pt !important;
  }

  h4, h5, h6,
  .prose h4, .prose h5, .prose h6 {
    font-size: 8.5pt !important;
    line-height: 1.2 !important;
    font-weight: 600 !important;
    color: #1e293b !important;
    margin-top: 3pt !important;
    margin-bottom: 1pt !important;
  }

  ul, ol,
  .prose ul, .prose ol {
    margin-top: 1pt !important;
    margin-bottom: 2.5pt !important;
    padding-left: 13pt !important;
  }

  li,
  .prose li {
    margin-top: 0.5pt !important;
    margin-bottom: 0.5pt !important;
    font-size: 8.5pt !important;
    line-height: 1.3 !important;
  }

  li > p {
    margin: 0 !important;
  }

  blockquote,
  .prose blockquote,
  .callout {
    margin: 2.5pt 0 !important;
    padding: 2pt 5pt !important;
    font-size: 8pt !important;
    line-height: 1.3 !important;
    border-left: 2.5px solid #64748b !important;
    background-color: #f8fafc !important;
    border-radius: 0 2px 2px 0 !important;
  }

  table,
  .prose table {
    margin: 2.5pt 0 !important;
    font-size: 7.5pt !important;
    line-height: 1.25 !important;
    border-collapse: collapse !important;
    width: 100% !important;
    border: 1px solid #cbd5e1 !important;
  }

  th, td,
  .prose th, .prose td {
    padding: 2pt 4pt !important;
    border: 1px solid #cbd5e1 !important;
    color: #1e293b !important;
  }

  th,
  .prose th {
    background-color: #f1f5f9 !important;
    font-weight: 700 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.04em !important;
  }

  hr,
  .prose hr {
    margin: 3pt 0 !important;
    border-color: #e2e8f0 !important;
  }

  img {
    max-width: 100% !important;
    max-height: 220px !important;
    height: auto !important;
    object-fit: contain !important;
    margin: 2.5pt auto !important;
    display: block !important;
  }

  .code-block-wrapper,
  .code-block-container {
    break-inside: avoid !important;
    page-break-inside: avoid !important;
    border: 1px solid #cbd5e1 !important;
    background-color: #f8fafc !important;
    border-radius: 3px !important;
    margin: 2.5pt 0 !important;
    overflow: hidden !important;
  }

  .code-block-header {
    border-bottom: 1px solid #cbd5e1 !important;
    background-color: #f1f5f9 !important;
    padding: 1.5pt 5pt !important;
    color: #334155 !important;
    font-size: 7pt !important;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace !important;
    font-weight: 700 !important;
    text-transform: uppercase !important;
  }

  .code-block-wrapper pre {
    border: none !important;
    background-color: transparent !important;
    padding: 3pt 5pt !important;
    margin: 0 !important;
    border-radius: 0 !important;
  }

  pre,
  pre code,
  code {
    white-space: pre-wrap !important;
    word-break: break-all !important;
    overflow-wrap: anywhere !important;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace !important;
    font-size: 7.5pt !important;
    line-height: 1.3 !important;
    color: #0f172a !important;
  }

  :not(pre) > code {
    padding: 0.5pt 2pt !important;
    font-size: 7.5pt !important;
    background-color: #f1f5f9 !important;
    border: 1px solid #e2e8f0 !important;
    border-radius: 2px !important;
  }
}