/* ============================================================
   CloudAIPilot Knowledge Base — Master Stylesheet
   Pattern: Fly.io docs style + CloudAIPilot enhancements
   ============================================================ */

/* ── 1. Google Fonts Import ─────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:ital,wght@0,400;0,500;1,400&display=swap');

/* ── 2. Design Tokens ────────────────────────────────────── */
:root {
  /* Colors */
  --clr-accent:        #5B5BD6;
  --clr-accent-hover:  #4747c2;
  --clr-accent-light:  #EEEEFF;
  --clr-accent-border: #c7c7f5;

  --clr-bg:            #ffffff;
  --clr-bg-sidebar:    #f8f8fb;
  --clr-bg-hover:      #f0f0f8;
  --clr-bg-code:       #1a1a2e;
  --clr-bg-code-inline:#f0f0f6;
  --clr-bg-subtle:     #f5f5f9;

  --clr-text-primary:  #18181f;
  --clr-text-body:     #3c3c50;
  --clr-text-muted:    #6b6b82;
  --clr-text-link:     #5B5BD6;

  --clr-border:        #e4e4ec;
  --clr-border-strong: #c8c8dc;

  /* Callout colors */
  --clr-note-bg:       #eff6ff;
  --clr-note-border:   #3b82f6;
  --clr-note-text:     #1e40af;
  --clr-tip-bg:        #f0fdf4;
  --clr-tip-border:    #22c55e;
  --clr-tip-text:      #15803d;
  --clr-warn-bg:       #fffbeb;
  --clr-warn-border:   #f59e0b;
  --clr-warn-text:     #92400e;
  --clr-caution-bg:    #fff1f2;
  --clr-caution-border:#ef4444;
  --clr-caution-text:  #991b1b;

  /* Layout */
  --sidebar-width:     272px;
  --topbar-height:     56px;
  --right-rail-width:  220px;
  --content-max:       780px;

  /* Typography */
  --font-sans:         'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:         'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

  /* Radius & Shadow */
  --radius-sm:         4px;
  --radius-md:         8px;
  --radius-lg:         12px;
  --shadow-sm:         0 1px 3px rgba(0,0,0,.08);
  --shadow-md:         0 4px 16px rgba(0,0,0,.10);
  --transition:        150ms ease;
}

/* Dark mode */
[data-theme="dark"] {
  --clr-accent:        #7c7ce8;
  --clr-accent-hover:  #9898f0;
  --clr-accent-light:  #1e1e38;
  --clr-accent-border: #3a3a72;

  --clr-bg:            #111118;
  --clr-bg-sidebar:    #0e0e16;
  --clr-bg-hover:      #1a1a28;
  --clr-bg-code:       #0d0d1a;
  --clr-bg-code-inline:#1e1e30;
  --clr-bg-subtle:     #16161f;

  --clr-text-primary:  #e8e8f4;
  --clr-text-body:     #b0b0c8;
  --clr-text-muted:    #6b6b88;
  --clr-text-link:     #8080ec;

  --clr-border:        #252535;
  --clr-border-strong: #38384e;

  --clr-note-bg:       #0f1828;
  --clr-note-border:   #3b82f6;
  --clr-note-text:     #93c5fd;
  --clr-tip-bg:        #0a1f12;
  --clr-tip-border:    #22c55e;
  --clr-tip-text:      #86efac;
  --clr-warn-bg:       #1c1408;
  --clr-warn-border:   #f59e0b;
  --clr-warn-text:     #fcd34d;
  --clr-caution-bg:    #1c0808;
  --clr-caution-border:#ef4444;
  --clr-caution-text:  #fca5a5;
}

/* ── 3. Reset & Base ─────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--topbar-height) + 24px);
  height: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--clr-bg);
  color: var(--clr-text-body);
  line-height: 1.65;
  min-height: 100%;
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
}

a { color: var(--clr-text-link); text-decoration: none; }
a:hover { text-decoration: underline; }

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

/* ── 4. Layout Shell ─────────────────────────────────────── */

/* Reading progress bar */
#progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--clr-accent), #a78bfa);
  z-index: 1000;
  transition: width 0.1s linear;
}

/* Top bar */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--topbar-height);
  background: var(--clr-bg);
  border-bottom: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  padding: 0 20px 0 16px;
  z-index: 200;
  gap: 12px;
  backdrop-filter: blur(8px);
  background: rgba(255,255,255,.92);
  transition: background var(--transition);
}
[data-theme="dark"] .topbar {
  background: rgba(17,17,24,.92);
}

.topbar-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.topbar-logo-mark {
  width: 30px; height: 30px;
  background: linear-gradient(135deg, var(--clr-accent), #a78bfa);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
}
.topbar-logo-mark svg { width: 18px; height: 18px; fill: none; stroke: #fff; stroke-width: 2px; stroke-linecap: round; stroke-linejoin: round; }
.topbar-logo-name {
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--clr-text-primary);
  letter-spacing: -0.01em;
}
.topbar-logo-badge {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--clr-accent);
  background: var(--clr-accent-light);
  border: 1px solid var(--clr-accent-border);
  padding: 1px 6px;
  border-radius: 100px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Mobile search button (shown at ≤640px in place of the hidden search bar) */
.topbar-search-btn {
  display: none;
  background: none;
  border: none;
  padding: 6px;
  cursor: pointer;
  color: var(--clr-text-muted);
  border-radius: var(--radius-sm);
}
.topbar-search-btn:hover { color: var(--clr-text-primary); background: var(--clr-bg-hover); }
.topbar-search-btn svg { width: 20px; height: 20px; display: block; }
@media (max-width: 640px) {
  .topbar-search-btn { display: flex; align-items: center; justify-content: center; }
}

/* Mobile search overlay */
.mobile-search-overlay {
  display: none;
  position: fixed; inset: 0; z-index: 500;
  background: var(--clr-bg);
  padding: 16px;
}
.mobile-search-overlay.open { display: flex; flex-direction: column; gap: 12px; }
.mobile-search-header { display: flex; align-items: center; gap: 10px; }
.mobile-search-close {
  background: none; border: none; padding: 6px; cursor: pointer;
  color: var(--clr-text-muted);
}
.mobile-search-close svg { width: 20px; height: 20px; display: block; }
.mobile-search-input {
  flex: 1;
  border: 1px solid var(--clr-border); border-radius: var(--radius-md);
  padding: 10px 14px; font-size: 1rem; font-family: var(--font-sans);
  background: var(--clr-bg); color: var(--clr-text-primary);
  outline: none;
}
.mobile-search-input:focus { border-color: var(--clr-accent); }
#mobile-search-results .search-result-item {
  display: block; padding: 12px 14px;
  border: 1px solid var(--clr-border); border-radius: var(--radius-md);
  margin-bottom: 8px; text-decoration: none;
  transition: border-color var(--transition);
}
#mobile-search-results .search-result-item:hover { border-color: var(--clr-accent); }

/* Mobile hamburger */
.topbar-menu-btn {
  display: none;
  background: none;
  border: none;
  padding: 6px;
  cursor: pointer;
  color: var(--clr-text-body);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}
.topbar-menu-btn:hover { background: var(--clr-bg-hover); }
.topbar-menu-btn svg { display: block; width: 20px; height: 20px; }

/* Search bar in topbar */
.topbar-search {
  flex: 1;
  max-width: 380px;
  position: relative;
}
.topbar-search input {
  width: 100%;
  height: 34px;
  padding: 0 12px 0 34px;
  background: var(--clr-bg-subtle);
  border: 1px solid var(--clr-border);
  border-radius: 8px;
  font-size: 0.8125rem;
  color: var(--clr-text-primary);
  font-family: var(--font-sans);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.topbar-search input::placeholder { color: var(--clr-text-muted); }
.topbar-search input:focus {
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px var(--clr-accent-light);
}
.topbar-search-icon {
  position: absolute;
  left: 10px; top: 50%; transform: translateY(-50%);
  color: var(--clr-text-muted);
  pointer-events: none;
  width: 15px; height: 15px;
}
.search-kbd {
  position: absolute;
  right: 8px; top: 50%; transform: translateY(-50%);
  font-size: 0.6875rem;
  color: var(--clr-text-muted);
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  padding: 1px 5px;
  border-radius: 4px;
  pointer-events: none;
}

.topbar-spacer { flex: 1; }

.topbar-actions { display: flex; align-items: center; gap: 8px; }

/* Dark mode toggle */
.btn-icon {
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  background: none;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--clr-text-muted);
  transition: all var(--transition);
  flex-shrink: 0;
}
.btn-icon:hover {
  background: var(--clr-bg-hover);
  color: var(--clr-text-primary);
  border-color: var(--clr-border-strong);
}
.btn-icon svg { width: 16px; height: 16px; }

.btn-cta {
  height: 34px;
  padding: 0 16px;
  background: var(--clr-accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 6px;
  transition: background var(--transition), transform var(--transition);
  white-space: nowrap;
}
.btn-cta:hover { background: var(--clr-accent-hover); text-decoration: none; transform: translateY(-1px); }
.btn-cta svg { width: 14px; height: 14px; }

/* ── 5. Sidebar ──────────────────────────────────────────── */
.sidebar {
  position: fixed;
  top: var(--topbar-height);
  left: 0;
  width: var(--sidebar-width);
  height: calc(100vh - var(--topbar-height));
  overflow-y: auto;
  overflow-x: hidden;
  border-right: 1px solid var(--clr-border);
  background: var(--clr-bg-sidebar);
  padding: 20px 0 60px;
  z-index: 100;
  scrollbar-width: thin;
  scrollbar-color: var(--clr-border) transparent;
  transition: transform var(--transition), background var(--transition);
}
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: var(--clr-border); border-radius: 4px; }

/* Sidebar section group */
.nav-section { margin-bottom: 4px; }

.nav-section-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px 6px 16px;
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-sans);
  transition: background var(--transition);
  border-radius: 0;
  user-select: none;
}
.nav-section-header:hover { background: var(--clr-bg-hover); }

.nav-section-icon {
  width: 16px; height: 16px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  color: var(--clr-text-muted);
  transition: color var(--transition);
}
.nav-section-icon svg {
  width: 15px; height: 15px;
  stroke-width: 1.75;
}
.nav-section.open .nav-section-icon,
.nav-section-header:hover .nav-section-icon {
  color: var(--clr-accent);
}
.nav-section-title {
  flex: 1;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--clr-text-primary);
  line-height: 1.3;
}
.nav-section-chevron {
  width: 14px; height: 14px;
  color: var(--clr-text-muted);
  transition: transform 200ms ease;
  flex-shrink: 0;
}
.nav-section.open .nav-section-chevron { transform: rotate(90deg); }

/* Nav links list */
.nav-links {
  list-style: none;
  display: none;
  padding: 2px 10px 6px 10px;
}
.nav-section.open .nav-links { display: block; }

.nav-link {
  display: block;
  padding: 5px 10px 5px 26px;
  font-size: 0.8125rem;
  color: var(--clr-text-muted);
  border-radius: var(--radius-sm);
  line-height: 1.4;
  transition: all var(--transition);
  text-decoration: none;
  position: relative;
}
.nav-link:hover {
  color: var(--clr-text-primary);
  background: var(--clr-bg-hover);
  text-decoration: none;
}
.nav-link.active {
  color: var(--clr-accent);
  background: var(--clr-accent-light);
  font-weight: 500;
}
.nav-link.active::before {
  content: '';
  position: absolute;
  left: 10px; top: 50%; transform: translateY(-50%);
  width: 3px; height: 14px;
  background: var(--clr-accent);
  border-radius: 2px;
}

/* Sidebar home link */
.nav-home-link {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 16px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--clr-text-muted);
  text-decoration: none;
  transition: all var(--transition);
  border-radius: 0;
}
.nav-home-link:hover { color: var(--clr-text-primary); background: var(--clr-bg-hover); text-decoration: none; }
.nav-home-link.active { color: var(--clr-accent); }
.nav-home-link svg { width: 16px; height: 16px; flex-shrink: 0; }
.nav-divider {
  height: 1px;
  background: var(--clr-border);
  margin: 8px 16px;
}

/* ── 6. Main Content Area ────────────────────────────────── */
.content-wrapper {
  margin-left: var(--sidebar-width);
  margin-top: var(--topbar-height);
  min-height: calc(100vh - var(--topbar-height));
  display: flex;
}

.content-main {
  flex: 1;
  min-width: 0;
  padding: 40px 48px 80px;
  max-width: calc(var(--content-max) + var(--right-rail-width) + 96px);
}

/* Home page full-width column wrapper */
.home-wrap {
  flex: 1;
  min-width: 0;
  width: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Search results overlay */
#search-results {
  display: none;
  position: fixed;
  top: calc(var(--topbar-height) + 8px);
  left: 50%;
  transform: translateX(-50%);
  width: min(560px, calc(100vw - 32px));
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  z-index: 500;
  max-height: 420px;
  overflow-y: auto;
}
#search-results.visible { display: block; }
.search-result-item {
  display: block;
  padding: 12px 16px;
  border-bottom: 1px solid var(--clr-border);
  text-decoration: none;
  transition: background var(--transition);
}
.search-result-item:last-child { border-bottom: none; }
.search-result-item:hover { background: var(--clr-bg-hover); }
.search-result-section {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--clr-accent);
  margin-bottom: 2px;
}
.search-result-title {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--clr-text-primary);
  margin-bottom: 2px;
}
.search-result-excerpt {
  font-size: 0.78125rem;
  color: var(--clr-text-muted);
  line-height: 1.4;
}
.search-no-results {
  padding: 24px 16px;
  text-align: center;
  color: var(--clr-text-muted);
  font-size: 0.875rem;
}

/* ── 7. Article Typography ───────────────────────────────── */
.article-body {
  max-width: var(--content-max);
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  color: var(--clr-text-muted);
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--clr-text-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--clr-accent); }
.breadcrumb-sep { color: var(--clr-border-strong); font-size: 12px; }
.breadcrumb-current { color: var(--clr-text-body); }

/* Article heading */
.article-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--clr-text-primary);
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin-bottom: 12px;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.article-badge {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 3px 8px;
  border-radius: 100px;
  border: 1px solid;
}
.badge-published {
  color: var(--clr-tip-text);
  background: var(--clr-tip-bg);
  border-color: var(--clr-tip-border);
}
.badge-draft {
  color: var(--clr-warn-text);
  background: var(--clr-warn-bg);
  border-color: var(--clr-warn-border);
}
.article-meta-date {
  font-size: 0.78125rem;
  color: var(--clr-text-muted);
}
.article-meta-sep { color: var(--clr-border-strong); }

/* Article divider */
.article-divider {
  height: 1px;
  background: var(--clr-border);
  margin: 32px 0;
}

/* Headings within article */
.article-body h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--clr-text-primary);
  letter-spacing: -0.015em;
  margin: 36px 0 12px;
  scroll-margin-top: calc(var(--topbar-height) + 20px);
}
.article-body h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--clr-text-primary);
  margin: 24px 0 10px;
  scroll-margin-top: calc(var(--topbar-height) + 20px);
}
.article-body h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--clr-text-primary);
  margin: 20px 0 8px;
}
.article-body p { margin-bottom: 16px; }
.article-body p:last-child { margin-bottom: 0; }

.article-body strong { color: var(--clr-text-primary); font-weight: 600; }
.article-body em { font-style: italic; }

.article-body ul, .article-body ol {
  margin: 0 0 16px 20px;
}
.article-body li { margin-bottom: 6px; line-height: 1.6; }
.article-body li:last-child { margin-bottom: 0; }

/* Inline code */
.article-body code {
  font-family: var(--font-mono);
  font-size: 0.8125em;
  background: var(--clr-bg-code-inline);
  color: var(--clr-accent);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--clr-border);
}

/* ── 8. Code Blocks ──────────────────────────────────────── */
.code-block {
  position: relative;
  margin: 20px 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.06);
}
.code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: rgba(255,255,255,.05);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.code-block-lang {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: rgba(255,255,255,.45);
  text-transform: uppercase;
  letter-spacing: .08em;
}
.code-copy-btn {
  display: flex; align-items: center; gap: 5px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-sm);
  color: rgba(255,255,255,.55);
  font-size: 0.6875rem;
  font-family: var(--font-sans);
  font-weight: 500;
  padding: 3px 9px;
  cursor: pointer;
  transition: all var(--transition);
}
.code-copy-btn:hover { background: rgba(255,255,255,.15); color: #fff; }
.code-copy-btn.copied { color: #86efac; border-color: #86efac44; }
.code-copy-btn svg { width: 12px; height: 12px; }

.code-block pre {
  background: var(--clr-bg-code);
  margin: 0;
  padding: 16px 18px;
  overflow-x: auto;
}
.code-block code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: #d4d4d8;
  background: none;
  border: none;
  padding: 0;
  line-height: 1.7;
  display: block;
}
/* Syntax highlight colors */
.tok-keyword  { color: #c792ea; }
.tok-string   { color: #c3e88d; }
.tok-comment  { color: #546e7a; font-style: italic; }
.tok-number   { color: #f78c6c; }
.tok-operator { color: #89ddff; }
.tok-builtin  { color: #82aaff; }

/* ── 9. Callout Boxes ────────────────────────────────────── */
.callout {
  display: flex;
  gap: 12px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border-left: 3px solid;
  margin: 20px 0;
}
.callout-icon {
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 1px;
  line-height: 1.65;
}
.callout-content { flex: 1; min-width: 0; }
.callout-title {
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: 4px;
}
.callout-body { font-size: 0.875rem; line-height: 1.6; }
.callout-body p { margin-bottom: 8px; }
.callout-body p:last-child { margin-bottom: 0; }

.callout-note   { background: var(--clr-note-bg);   border-color: var(--clr-note-border);   color: var(--clr-note-text); }
.callout-tip    { background: var(--clr-tip-bg);    border-color: var(--clr-tip-border);    color: var(--clr-tip-text); }
.callout-warn   { background: var(--clr-warn-bg);   border-color: var(--clr-warn-border);   color: var(--clr-warn-text); }
.callout-caution{ background: var(--clr-caution-bg);border-color: var(--clr-caution-border);color: var(--clr-caution-text); }

/* ── 10. Step Guide ──────────────────────────────────────── */
.steps-list {
  list-style: none;
  counter-reset: step-counter;
  margin: 20px 0;
  display: flex; flex-direction: column; gap: 0;
}
.step-item {
  counter-increment: step-counter;
  display: flex;
  gap: 16px;
  position: relative;
  padding-bottom: 24px;
}
.step-item:last-child { padding-bottom: 0; }
.step-item:last-child .step-line { display: none; }

.step-indicator {
  flex-shrink: 0;
  display: flex; flex-direction: column; align-items: center;
}
.step-number {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--clr-accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.step-line {
  width: 2px;
  flex: 1;
  background: var(--clr-border);
  margin-top: 6px;
  min-height: 24px;
}
.step-content {
  flex: 1; min-width: 0;
  padding-top: 3px;
}
.step-title {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--clr-text-primary);
  margin-bottom: 6px;
}
.step-body {
  font-size: 0.875rem;
  color: var(--clr-text-body);
  line-height: 1.65;
}
.step-body p { margin-bottom: 8px; }
.step-body p:last-child { margin-bottom: 0; }
.step-result {
  display: flex; align-items: flex-start; gap: 8px;
  margin-top: 10px;
  padding: 10px 12px;
  background: var(--clr-tip-bg);
  border-radius: var(--radius-sm);
  border: 1px solid var(--clr-tip-border);
  font-size: 0.8125rem;
  color: var(--clr-tip-text);
}
.step-result-icon { flex-shrink: 0; margin-top: 1px; }

/* ── 11. Error Cards ─────────────────────────────────────── */
.error-list { margin: 20px 0; display: flex; flex-direction: column; gap: 8px; }
.error-card {
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.error-card-header {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px;
  cursor: pointer;
  user-select: none;
  background: var(--clr-bg-subtle);
  transition: background var(--transition);
}
.error-card-header:hover { background: var(--clr-bg-hover); }
.error-card-icon { font-size: 0.875rem; flex-shrink: 0; }
.error-card-symptom {
  flex: 1;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--clr-text-primary);
}
.error-card-chevron {
  width: 14px; height: 14px;
  color: var(--clr-text-muted);
  transition: transform 200ms;
  flex-shrink: 0;
}
.error-card.open .error-card-chevron { transform: rotate(180deg); }
.error-card-body {
  display: none;
  padding: 12px 14px 14px;
  border-top: 1px solid var(--clr-border);
}
.error-card.open .error-card-body { display: block; }
.error-label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--clr-text-muted);
  margin-bottom: 4px;
  margin-top: 10px;
}
.error-label:first-child { margin-top: 0; }
.error-text { font-size: 0.875rem; color: var(--clr-text-body); line-height: 1.6; }

/* ── 12. Provider Tabs ───────────────────────────────────── */
.provider-tabs {
  margin: 20px 0;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.provider-tab-list {
  display: flex;
  border-bottom: 1px solid var(--clr-border);
  background: var(--clr-bg-subtle);
  overflow-x: auto;
}
.provider-tab-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 16px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--clr-text-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition);
  margin-bottom: -1px;
}
.provider-tab-btn:hover { color: var(--clr-text-primary); }
.provider-tab-btn.active {
  color: var(--clr-accent);
  border-bottom-color: var(--clr-accent);
  background: var(--clr-bg);
}
.provider-tab-content { padding: 20px; }
.provider-pane { display: none; }
.provider-pane.active { display: block; }

/* ── 13. Related Articles ────────────────────────────────── */
.related-articles {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--clr-border);
}
.related-articles-title {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--clr-text-muted);
  margin-bottom: 14px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
}
.related-card {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition);
}
.related-card:hover {
  border-color: var(--clr-accent);
  background: var(--clr-accent-light);
  text-decoration: none;
  transform: translateY(-1px);
}
.related-card-icon {
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 1px;
}
.related-card-text {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--clr-text-primary);
  line-height: 1.4;
}
.related-card-section {
  font-size: 0.6875rem;
  color: var(--clr-text-muted);
  margin-top: 2px;
}

/* ── 14. Prev / Next Navigation ──────────────────────────── */
.article-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--clr-border);
}
.article-nav-link {
  display: flex; flex-direction: column; gap: 4px;
  padding: 14px 16px;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition);
}
.article-nav-link:hover {
  border-color: var(--clr-accent);
  background: var(--clr-accent-light);
  text-decoration: none;
  transform: translateY(-1px);
}
.article-nav-link.next { text-align: right; }
.article-nav-direction {
  display: flex; align-items: center; gap: 5px;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--clr-text-muted);
}
.article-nav-link.next .article-nav-direction { justify-content: flex-end; }
.article-nav-direction svg { width: 12px; height: 12px; }
.article-nav-title {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--clr-text-primary);
  line-height: 1.4;
}

/* ── 15. Right Rail (On This Page) ───────────────────────── */
.right-rail {
  width: var(--right-rail-width);
  flex-shrink: 0;
  padding: 40px 0 80px 32px;
}
.right-rail-inner {
  position: sticky;
  top: calc(var(--topbar-height) + 24px);
}
.right-rail-title {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--clr-text-muted);
  margin-bottom: 12px;
}
.toc-list { list-style: none; }
.toc-item {
  border-left: 2px solid var(--clr-border);
  transition: border-color var(--transition);
}
.toc-item.active { border-color: var(--clr-accent); }
.toc-link {
  display: block;
  padding: 4px 0 4px 12px;
  font-size: 0.78125rem;
  color: var(--clr-text-muted);
  text-decoration: none;
  line-height: 1.4;
  transition: color var(--transition);
}
.toc-link:hover { color: var(--clr-text-primary); text-decoration: none; }
.toc-item.active .toc-link { color: var(--clr-accent); font-weight: 500; }
.toc-link.toc-h3 { padding-left: 22px; }

/* ── 16. Home Page ───────────────────────────────────────── */
.home-hero {
  width: 100%;
  padding: 60px 48px 48px;
  border-bottom: 1px solid var(--clr-border);
  background: linear-gradient(160deg, var(--clr-bg) 0%, var(--clr-accent-light) 100%);
}
.home-hero-eyebrow {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--clr-accent);
  margin-bottom: 16px;
}
.home-hero-eyebrow-dot {
  width: 6px; height: 6px;
  background: var(--clr-accent);
  border-radius: 50%;
}
.home-hero h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--clr-text-primary);
  letter-spacing: -0.03em;
  line-height: 1.15;
  max-width: 600px;
  margin-bottom: 16px;
}
.home-hero p {
  font-size: 1.0625rem;
  color: var(--clr-text-body);
  max-width: 560px;
  margin-bottom: 32px;
  line-height: 1.7;
}
.home-hero-ctas {
  display: flex; gap: 12px; flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 22px;
  background: var(--clr-accent);
  color: #fff;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition);
  border: 1px solid var(--clr-accent);
}
.btn-primary:hover { background: var(--clr-accent-hover); text-decoration: none; transform: translateY(-1px); }
.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 22px;
  background: var(--clr-bg);
  color: var(--clr-text-primary);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--clr-border);
  transition: all var(--transition);
}
.btn-secondary:hover { border-color: var(--clr-accent); color: var(--clr-accent); text-decoration: none; transform: translateY(-1px); }

/* Quickstart path */
.quickstart-path {
  display: flex;
  align-items: center;
  gap: 0;
  margin: 16px 0 48px;
  padding: 0 48px;
  flex-wrap: wrap;
  row-gap: 8px;
}
a.qs-step {
  text-decoration: none;
}
a.qs-step:hover {
  text-decoration: none;
  border-color: var(--clr-accent);
  color: var(--clr-accent);
}
.qs-step {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 14px;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--clr-text-primary);
  white-space: nowrap;
}
.qs-step-num {
  width: 20px; height: 20px;
  background: var(--clr-accent);
  color: #fff;
  border-radius: 50%;
  font-size: 0.6875rem;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.qs-arrow {
  padding: 0 8px;
  color: var(--clr-text-muted);
  font-size: 1rem;
}

/* Section cards grid */
.section-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
  padding: 0 48px 48px;
}
.section-card {
  display: flex; flex-direction: column;
  padding: 20px;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all 200ms ease;
  background: var(--clr-bg);
}
.section-card:hover {
  border-color: var(--clr-accent);
  box-shadow: 0 4px 20px rgba(91,91,214,.12);
  transform: translateY(-2px);
  text-decoration: none;
}
.section-card-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 14px;
  flex-shrink: 0;
}
.section-card-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--clr-text-primary);
  margin-bottom: 6px;
  line-height: 1.3;
}
.section-card-desc {
  font-size: 0.8125rem;
  color: var(--clr-text-muted);
  line-height: 1.55;
  flex: 1;
  margin-bottom: 14px;
}
.section-card-footer {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 0.75rem;
  color: var(--clr-text-muted);
}
.section-card-count {
  background: var(--clr-bg-subtle);
  border: 1px solid var(--clr-border);
  padding: 2px 8px;
  border-radius: 100px;
}
.section-card-arrow { color: var(--clr-accent); }

/* Home section title */
.home-section {
  padding: 40px 48px 0;
}
.home-section-title {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--clr-text-muted);
  margin-bottom: 20px;
}
.home-section-heading {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--clr-text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}
.home-section-subheading {
  font-size: 0.9375rem;
  color: var(--clr-text-muted);
  margin-bottom: 28px;
}

/* Support cards */
.support-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
  padding: 0 48px 60px;
}
.support-card {
  padding: 24px;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  background: var(--clr-bg);
}
.support-card-icon { font-size: 1.75rem; margin-bottom: 12px; }
.support-card-title { font-size: 1rem; font-weight: 700; color: var(--clr-text-primary); margin-bottom: 8px; }
.support-card-desc { font-size: 0.875rem; color: var(--clr-text-muted); line-height: 1.6; margin-bottom: 16px; }
.support-card a {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--clr-accent);
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 4px;
}
.support-card a:hover { text-decoration: underline; }

/* Section landing page */
.section-landing { padding: 40px 48px 80px; }
.section-landing-hero {
  display: flex; align-items: flex-start; gap: 20px;
  padding: 32px;
  background: linear-gradient(135deg, var(--clr-accent-light), var(--clr-bg));
  border: 1px solid var(--clr-accent-border);
  border-radius: var(--radius-lg);
  margin-bottom: 40px;
}
.section-landing-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.75rem;
  flex-shrink: 0;
}
.section-landing-hero h1 {
  font-size: 1.625rem;
  font-weight: 700;
  color: var(--clr-text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}
.section-landing-hero p { font-size: 0.9375rem; color: var(--clr-text-body); margin-bottom: 0; }
.section-articles-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--clr-text-muted);
  margin-bottom: 14px;
}
.article-list { display: flex; flex-direction: column; gap: 8px; }
.article-list-item {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 16px;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition);
}
.article-list-item:hover {
  border-color: var(--clr-accent);
  background: var(--clr-accent-light);
  text-decoration: none;
  transform: translateX(2px);
}
.article-list-num {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--clr-bg-subtle);
  border: 1px solid var(--clr-border);
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--clr-text-muted);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.article-list-text { flex: 1; min-width: 0; }
.article-list-title {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--clr-text-primary);
  margin-bottom: 2px;
}
.article-list-meta { font-size: 0.78125rem; color: var(--clr-text-muted); }
.article-list-arrow { color: var(--clr-text-muted); transition: color var(--transition); }
.article-list-item:hover .article-list-arrow { color: var(--clr-accent); }

/* ── 17. Success/Info Boxes ──────────────────────────────── */
.success-box {
  display: flex; gap: 12px;
  padding: 14px 16px;
  background: var(--clr-tip-bg);
  border: 1px solid var(--clr-tip-border);
  border-radius: var(--radius-md);
  margin: 20px 0;
  font-size: 0.875rem;
  color: var(--clr-tip-text);
}

/* ── 18. Table Styles ────────────────────────────────────── */
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 0.875rem;
}
.article-body th {
  text-align: left;
  padding: 8px 12px;
  background: var(--clr-bg-subtle);
  border: 1px solid var(--clr-border);
  font-weight: 600;
  color: var(--clr-text-primary);
}
.article-body td {
  padding: 8px 12px;
  border: 1px solid var(--clr-border);
  color: var(--clr-text-body);
}
.article-body tr:hover td { background: var(--clr-bg-hover); }

/* ── 19. Responsive ──────────────────────────────────────── */
@media (max-width: 1200px) {
  .right-rail { display: none; }
}

@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
    z-index: 300;
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-overlay {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0,0,0,.4);
    z-index: 250;
    backdrop-filter: blur(2px);
  }
  .sidebar-overlay.visible { display: block; }

  .content-wrapper { margin-left: 0; }
  .topbar-menu-btn { display: flex; }
  .topbar-search { max-width: 240px; }
  .search-kbd { display: none; }
}

@media (max-width: 640px) {
  .content-main { padding: 28px 20px 60px; }
  .home-hero { padding: 40px 20px 32px; }
  .home-section { padding: 32px 20px 0; }
  .section-grid { padding: 0 20px 32px; grid-template-columns: 1fr; }
  .support-grid { padding: 0 20px 48px; }
  .section-landing { padding: 28px 20px 60px; }
  .article-nav { grid-template-columns: 1fr; }
  .topbar-search { display: none; }
  .article-title { font-size: 1.5rem; }
  .home-hero h1 { font-size: 1.625rem; }
  .quickstart-path { flex-direction: column; align-items: flex-start; gap: 4px; padding: 0 20px; }
  .qs-arrow { transform: rotate(90deg); padding: 4px 0; }
  /* Tables scroll horizontally on small screens */
  .article-body table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  /* Code blocks scroll on small screens */
  .code-block pre { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  /* Section landing hero stacks vertically */
  .section-landing-hero { flex-direction: column; gap: 14px; padding: 20px; }
  /* Collapse logo to icon-only so all topbar items fit */
  .topbar-logo-name { display: none; }
  .topbar-logo-badge { display: none; }
  /* Trim Dashboard CTA arrow and padding */
  .btn-cta { padding: 0 10px; font-size: 0.75rem; }
  .btn-cta svg { display: none; }
  /* Hard safety net — nothing bleeds past the viewport edge */
  .topbar { overflow: hidden; }
}

/* ── 20. Article Accent Bar ──────────────────────────────── */
.article-body {
  position: relative;
}
.article-body::before {
  content: '';
  display: block;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-accent) 0%, #a78bfa 60%, transparent 100%);
  border-radius: 2px;
  margin-bottom: 32px;
  opacity: 0.7;
}

/* ── 21. YouTube Video Embed Placeholder ─────────────────── */
.video-embed {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--clr-bg-code);
  margin: 28px 0;
  border: 1px solid var(--clr-border);
}
.video-embed iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: 0;
  border-radius: var(--radius-lg);
}
/* Placeholder shown before YouTube URL is wired in */
.video-embed-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 40px 24px;
  background: var(--clr-bg-subtle);
  border: 2px dashed var(--clr-border);
  border-radius: var(--radius-lg);
  margin: 28px 0;
  color: var(--clr-text-muted);
  font-size: 0.875rem;
  text-align: center;
}
.video-embed-placeholder svg {
  width: 40px; height: 40px;
  opacity: 0.4;
}
.video-embed-label {
  font-weight: 600;
  color: var(--clr-text-muted);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ── 22. Improved Article Meta ───────────────────────────── */
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 28px;
  font-size: 0.8125rem;
  color: var(--clr-text-muted);
}
.article-meta-date {
  font-size: 0.8125rem;
}
.article-meta-sep {
  color: var(--clr-border-strong);
}

/* ── 23. Utility ─────────────────────────────────────────── */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap;
}
.text-muted { color: var(--clr-text-muted); }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* Section icon colors */
.icon-getting-started { background: #eff6ff; color: #3b82f6; }
.icon-cloud-accounts   { background: #fdf4ff; color: #a855f7; }
.icon-servers          { background: #fff7ed; color: #f97316; }
.icon-sites            { background: #f0fdf4; color: #22c55e; }
.icon-apps             { background: #fefce8; color: #eab308; }
.icon-backups          { background: #fff1f2; color: #ef4444; }
.icon-monitoring       { background: #f0f9ff; color: #0ea5e9; }
.icon-ai-pilot         { background: #fdf4ff; color: #d946ef; }
.icon-finops           { background: #f0fdf4; color: #10b981; }
.icon-team             { background: #fff7ed; color: #f59e0b; }
.icon-notifications    { background: #eff6ff; color: #6366f1; }
.icon-security         { background: #fff1f2; color: #dc2626; }
.icon-troubleshooting  { background: #fffbeb; color: #d97706; }
.icon-api              { background: #f0f9ff; color: #0284c7; }

[data-theme="dark"] .icon-getting-started { background: #0f1828; color: #60a5fa; }
[data-theme="dark"] .icon-cloud-accounts   { background: #1a0a28; color: #c084fc; }
[data-theme="dark"] .icon-servers          { background: #1c1008; color: #fb923c; }
[data-theme="dark"] .icon-sites            { background: #0a2015; color: #4ade80; }
[data-theme="dark"] .icon-apps             { background: #1c1a04; color: #facc15; }
[data-theme="dark"] .icon-backups          { background: #1c0808; color: #f87171; }
[data-theme="dark"] .icon-monitoring       { background: #061420; color: #38bdf8; }
[data-theme="dark"] .icon-ai-pilot         { background: #1a0420; color: #e879f9; }
[data-theme="dark"] .icon-finops           { background: #061a10; color: #34d399; }
[data-theme="dark"] .icon-team             { background: #1c1204; color: #fbbf24; }
[data-theme="dark"] .icon-notifications    { background: #0c0e28; color: #818cf8; }
[data-theme="dark"] .icon-security         { background: #1c0808; color: #f87171; }
[data-theme="dark"] .icon-troubleshooting  { background: #1c1508; color: #fbbf24; }
[data-theme="dark"] .icon-api              { background: #051420; color: #38bdf8; }
.icon-agency           { background: #fdf4ff; color: #9333ea; }
[data-theme="dark"] .icon-agency           { background: #1a0528; color: #c084fc; }