:root {
  --sidebar-width: 260px;
  --nav-height: 60px;
  --content-max: 780px;
}

/* ─── TOP NAV ─── */
.topnav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  height: var(--nav-height); background: rgba(250,249,247,0.92);
  backdrop-filter: blur(12px); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; padding: 0 24px; gap: 16px;
}
.topnav-logo { gap: 9px; font-size: 17px; }
.topnav-divider { width: 1px; height: 20px; background: var(--border); flex-shrink: 0; }
.topnav-section { font-family: var(--font-mono); font-size: 12px; font-weight: 500; color: var(--text-secondary); flex-shrink: 0; }
.topnav-search {
  flex: 1; max-width: 320px; margin-left: auto;
  display: flex; align-items: center; gap: 8px;
  background: var(--muted); border: 1px solid var(--border);
  border-radius: 9px; padding: 0 12px; height: 34px;
  color: var(--text-tertiary); font-family: var(--font-body); font-size: 13px;
  cursor: text; transition: border-color 0.2s, background 0.2s; user-select: none;
}
.topnav-search:hover { border-color: #ccc8c2; }
.topnav-search.focused { border-color: var(--rust); background: var(--surface); }
.search-shortcut {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
  background: var(--border);
  padding: 2px 6px;
  border-radius: 4px;
}
.topnav-actions { display: flex; gap: 8px; align-items: center; flex-shrink: 0; }
.btn-sm { font-family: var(--font-body); font-size: 13px; font-weight: 500; padding: 7px 14px; border-radius: 8px; border: 1.5px solid var(--border); background: var(--surface); color: var(--text-secondary); cursor: pointer; transition: border-color 0.2s, color 0.2s; }
.btn-sm:hover { border-color: var(--navy); color: var(--text); }
.btn-sm-primary { font-family: var(--font-body); font-size: 13px; font-weight: 600; padding: 7px 14px; border-radius: 8px; border: none; background: var(--rust); color: white; cursor: pointer; transition: background 0.2s; box-shadow: 0 2px 8px rgba(232,71,10,0.28); }
.btn-sm-primary:hover { background: #d13d08; }

/* ─── SEARCH OVERLAY ─── */
#search-overlay {
  display: none; position: fixed; inset: 0; z-index: 1000;
  background: rgba(26,26,46,0.5); backdrop-filter: blur(4px);
}
#search-overlay.open { display: block; }
#search-modal {
  position: absolute; top: 80px; left: 50%; transform: translateX(-50%);
  width: min(600px, calc(100vw - 48px));
  background: var(--surface); border-radius: var(--radius);
  box-shadow: 0 24px 80px rgba(26,26,46,0.22); overflow: hidden;
  border: 1px solid var(--border);
}
#search-input-wrap {
  display: flex; align-items: center; gap: 10px; padding: 16px 18px;
  border-bottom: 1px solid var(--border);
}
#search-input-wrap svg { flex-shrink: 0; color: var(--text-tertiary); }
#search-input {
  flex: 1; border: none; outline: none; background: none;
  font-family: var(--font-body); font-size: 16px; color: var(--text);
}
#search-input::placeholder { color: var(--text-tertiary); }
#search-kbd {
  font-family: var(--font-mono); font-size: 11px; color: var(--text-tertiary);
  background: var(--muted); border: 1px solid var(--border);
  padding: 2px 7px; border-radius: 5px; flex-shrink: 0;
}
#search-results { max-height: 420px; overflow-y: auto; }
#search-results:empty::after { content: 'No results.'; display: block; padding: 24px; color: var(--text-tertiary); font-size: 14px; text-align: center; }
.search-group-label { font-family: var(--font-mono); font-size: 10px; font-weight: 500; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-tertiary); padding: 12px 18px 4px; }
.search-result {
  display: flex; align-items: center; gap: 12px; padding: 10px 18px;
  cursor: pointer; transition: background 0.1s; border: none; background: none;
  width: 100%; text-align: left;
}
.search-result:hover, .search-result.focused { background: var(--muted); }
.search-result-icon { width: 32px; height: 32px; border-radius: 8px; background: var(--muted); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; flex-shrink: 0; color: var(--text-tertiary); }
.search-result-icon.code { background: #1e1e2e; color: #89b4fa; border-color: transparent; }
.search-result-body { flex: 1; min-width: 0; }
.search-result-title { font-size: 14px; font-weight: 500; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.search-result-title mark { background: var(--rust-pale); color: var(--rust); border-radius: 2px; font-style: normal; }
.search-result-sub { font-size: 12px; color: var(--text-tertiary); }
.search-result-section { font-family: var(--font-mono); font-size: 11px; color: var(--text-tertiary); background: var(--muted); padding: 2px 7px; border-radius: 4px; flex-shrink: 0; }
#search-footer { padding: 10px 18px; border-top: 1px solid var(--border); display: flex; gap: 16px; }
#search-footer span { font-family: var(--font-mono); font-size: 11px; color: var(--text-tertiary); display: flex; align-items: center; gap: 5px; }
#search-footer kbd { background: var(--muted); border: 1px solid var(--border); border-radius: 4px; padding: 1px 5px; font-size: 10px; }
#search-empty { padding: 48px 24px; text-align: center; }
#search-empty p { color: var(--text-tertiary); font-size: 14px; }

/* ─── LAYOUT ─── */
.docs-layout { display: flex; padding-top: var(--nav-height); min-height: 100vh; }

/* ─── SIDEBAR ─── */
.sidebar {
  width: var(--sidebar-width); flex-shrink: 0;
  position: fixed; top: var(--nav-height); bottom: 0; left: 0;
  overflow-y: auto; border-right: 1px solid var(--border);
  background: var(--surface); padding: 28px 0 60px;
  scrollbar-width: thin; scrollbar-color: var(--border) transparent;
}
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
.sidebar-group { margin-bottom: 28px; }
.sidebar-group-label { font-family: var(--font-mono); font-size: 10px; font-weight: 500; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.12em; padding: 0 20px; margin-bottom: 6px; display: block; }
.sidebar-item { display: flex; align-items: center; gap: 8px; padding: 7px 20px; font-size: 14px; font-weight: 400; color: var(--text-secondary); cursor: pointer; transition: color 0.15s, background 0.15s; border-left: 2px solid transparent; }
.sidebar-item:hover { color: var(--text); background: var(--muted); }
.sidebar-item.active { color: var(--rust); font-weight: 500; border-left-color: var(--rust); background: var(--rust-pale); }
.sidebar-item .badge { margin-left: auto; font-family: var(--font-mono); font-size: 10px; background: var(--rust-pale); color: var(--rust); padding: 2px 7px; border-radius: 20px; font-weight: 500; }

/* ─── MAIN ─── */
.docs-main { flex: 1; margin-left: var(--sidebar-width); min-width: 0; }
.docs-content { max-width: var(--content-max); margin: 0 auto; padding: 52px 48px 120px; }

/* ─── TYPOGRAPHY ─── */
.doc-section { margin-bottom: 72px; scroll-margin-top: 80px; }
.doc-section:last-child { margin-bottom: 0; }
.section-eyebrow { font-family: var(--font-mono); font-size: 11px; font-weight: 500; color: var(--rust); text-transform: uppercase; letter-spacing: 0.12em; display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.section-eyebrow::before { content: ''; display: inline-block; width: 18px; height: 2px; background: var(--rust); border-radius: 2px; }
.doc-section h1 { font-family: var(--font-display); font-size: 38px; font-weight: 700; line-height: 1.15; color: var(--navy); margin-bottom: 16px; }
.doc-section h2 { font-family: var(--font-display); font-size: 26px; font-weight: 700; line-height: 1.2; color: var(--navy); margin-bottom: 14px; padding-top: 8px; }
.doc-section h3 { font-family: var(--font-display); font-size: 18px; font-weight: 600; color: var(--navy); margin-bottom: 10px; padding-top: 4px; }
.doc-section p { font-size: 16px; line-height: 1.75; color: var(--text-secondary); margin-bottom: 20px; }
.doc-section p:last-child { margin-bottom: 0; }
.doc-section ul, .doc-section ol { padding-left: 20px; color: var(--text-secondary); font-size: 16px; line-height: 1.75; margin-bottom: 20px; }
.doc-section li { margin-bottom: 6px; }
.doc-section strong { color: var(--text); font-weight: 600; }
.doc-section a { color: var(--rust); text-decoration: underline; text-underline-offset: 3px; }
.doc-section code:not(.block) { font-family: var(--font-mono); font-size: 13px; background: var(--muted); border: 1px solid var(--border); padding: 2px 6px; border-radius: 5px; color: var(--navy); }
.doc-divider { height: 1px; background: var(--border); margin: 52px 0; }

/* ─── LANG SWITCHER ─── */
.lang-tabs { display: flex; gap: 2px; background: var(--muted); border: 1px solid var(--border); border-radius: 10px; padding: 3px; margin-bottom: 24px; width: fit-content; flex-wrap: wrap; }
.lang-tab { font-family: var(--font-mono); font-size: 12px; font-weight: 500; padding: 6px 13px; border-radius: 8px; cursor: pointer; color: var(--text-tertiary); border: none; background: none; transition: color 0.15s, background 0.15s; display: flex; align-items: center; gap: 5px; }
.lang-tab:hover { color: var(--text); }
.lang-tab.active { background: var(--surface); color: var(--navy); font-weight: 600; box-shadow: var(--shadow); }
.lang-icon { width: 13px; height: 13px; flex-shrink: 0; }
.lang-panel { display: none; }
.lang-panel.active { display: block; }

/* ─── CODE BLOCKS ─── */
.code-block { position: relative; border-radius: var(--radius); border: 1px solid var(--border); overflow: hidden; margin-bottom: 24px; box-shadow: var(--shadow); }
.code-block-header { display: flex; align-items: center; justify-content: space-between; background: #1e1e2e; padding: 10px 16px; border-bottom: 1px solid rgba(255,255,255,0.06); }
.code-block-lang { font-family: var(--font-mono); font-size: 11px; font-weight: 500; color: rgba(255,255,255,0.35); text-transform: uppercase; letter-spacing: 0.1em; }
.code-block-filename { font-family: var(--font-mono); font-size: 12px; color: rgba(255,255,255,0.45); }
.copy-btn { font-family: var(--font-mono); font-size: 11px; font-weight: 500; color: rgba(255,255,255,0.4); background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1); border-radius: 6px; padding: 4px 10px; cursor: pointer; transition: color 0.15s, background 0.15s; display: flex; align-items: center; gap: 5px; }
.copy-btn:hover { color: rgba(255,255,255,0.75); background: rgba(255,255,255,0.1); }
.copy-btn.copied { color: #4ade80; border-color: rgba(74,222,128,0.3); }
.code-block pre { background: #1e1e2e; padding: 20px 22px; overflow-x: auto; margin: 0; font-family: var(--font-mono); font-size: 13.5px; line-height: 1.7; color: #cdd6f4; }
/* syntax */
.kw { color: #cba6f7; } .st { color: #a6e3a1; } .cm { color: #585b70; font-style: italic; }
.nm { color: #89b4fa; } .fn { color: #89dceb; } .nu { color: #fab387; }
.op { color: #89dceb; } .an { color: #f38ba8; } .lt { color: #a6e3a1; }

/* ─── CALLOUTS ─── */
.callout { border-radius: var(--radius-sm); padding: 16px 20px; margin-bottom: 24px; display: flex; gap: 14px; align-items: flex-start; border: 1px solid; }
.callout-tip { background: #f0fdf4; border-color: #bbf7d0; }
.callout-tip .callout-icon { color: #16a34a; }
.callout-info { background: var(--rust-pale); border-color: rgba(232,71,10,0.2); }
.callout-info .callout-icon { color: var(--rust); }
.callout-warn { background: #fffbeb; border-color: #fde68a; }
.callout-warn .callout-icon { color: #d97706; }
.callout-icon { flex-shrink: 0; margin-top: 1px; }
.callout-body { flex: 1; }
.callout-body p { font-size: 14.5px; margin-bottom: 0; }
.callout-body strong { color: var(--text); }

/* ─── STEPS ─── */
.steps { display: flex; flex-direction: column; gap: 2px; margin-bottom: 16px; }
.step { display: flex; gap: 20px; padding: 20px 0; border-bottom: 1px solid var(--border); }
.step:last-child { border-bottom: none; }
.step-num { flex-shrink: 0; width: 28px; height: 28px; background: var(--navy); color: white; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-size: 13px; font-weight: 700; margin-top: 1px; }
.step-body { flex: 1; }
.step-title { font-family: var(--font-display); font-size: 16px; font-weight: 600; color: var(--navy); margin-bottom: 6px; }
.step-desc { font-size: 14.5px; color: var(--text-secondary); line-height: 1.65; }

/* ─── TABLES ─── */
.doc-table { width: 100%; border-collapse: collapse; margin-bottom: 24px; font-size: 14px; }
.doc-table th { font-family: var(--font-mono); font-size: 11px; font-weight: 500; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-tertiary); text-align: left; padding: 10px 14px; border-bottom: 2px solid var(--border); background: var(--muted); }
.doc-table td { padding: 12px 14px; border-bottom: 1px solid var(--border); color: var(--text-secondary); vertical-align: top; }
.doc-table td:first-child { font-family: var(--font-mono); font-size: 13px; color: var(--navy); }
.doc-table tr:hover td { background: var(--muted); }

/* ─── GREMLIN STEP CARDS ─── */
.gremlin-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 24px; }
.gremlin-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 16px; }
.gremlin-card-step { font-family: var(--font-mono); font-size: 13px; font-weight: 500; color: var(--rust); margin-bottom: 6px; }
.gremlin-card-desc { font-size: 13px; color: var(--text-secondary); line-height: 1.5; }

/* ─── CLOUD CTA ─── */
.cloud-cta { background: linear-gradient(135deg, var(--navy) 0%, #2d1a35 100%); border-radius: var(--radius); padding: 36px 40px; display: flex; align-items: center; gap: 32px; border: 1px solid rgba(255,255,255,0.06); margin-bottom: 24px; }
.cloud-cta-body { flex: 1; }
.cloud-cta-body h3 { font-family: var(--font-display); font-size: 22px; font-weight: 700; color: white; margin-bottom: 8px; }
.cloud-cta-body p { font-size: 15px; color: rgba(255,255,255,0.55); margin-bottom: 0; line-height: 1.6; }
.cloud-cta-actions { display: flex; flex-direction: column; gap: 10px; flex-shrink: 0; }
.btn-cloud { font-family: var(--font-body); font-size: 14px; font-weight: 600; background: var(--rust); color: white; padding: 11px 24px; border-radius: 10px; border: none; cursor: pointer; white-space: nowrap; transition: background 0.2s; box-shadow: 0 3px 12px rgba(232,71,10,0.35); text-align: center; }
.btn-cloud:hover { background: #d13d08; }
.btn-cloud-ghost { font-family: var(--font-body); font-size: 14px; font-weight: 500; background: rgba(255,255,255,0.07); color: rgba(255,255,255,0.7); padding: 11px 24px; border-radius: 10px; border: 1px solid rgba(255,255,255,0.12); cursor: pointer; white-space: nowrap; transition: background 0.2s; text-align: center; }
.btn-cloud-ghost:hover { background: rgba(255,255,255,0.12); }

/* ─── CHANGELOG ─── */
.changelog-entry { display: flex; gap: 24px; padding: 24px 0; border-bottom: 1px solid var(--border); }
.changelog-entry:last-child { border-bottom: none; }
.changelog-meta { flex-shrink: 0; width: 100px; }
.changelog-version { font-family: var(--font-mono); font-size: 13px; font-weight: 600; color: var(--navy); }
.changelog-date { font-size: 12px; color: var(--text-tertiary); margin-top: 2px; }
.changelog-tag { display: inline-block; font-family: var(--font-mono); font-size: 10px; font-weight: 600; padding: 2px 8px; border-radius: 20px; margin-top: 6px; text-transform: uppercase; letter-spacing: 0.05em; }
.tag-major { background: var(--rust-pale); color: var(--rust); }
.tag-minor { background: #eff6ff; color: #2563eb; }
.tag-patch { background: #f0fdf4; color: #16a34a; }
.changelog-body { flex: 1; }
.changelog-body h4 { font-family: var(--font-display); font-size: 16px; font-weight: 600; color: var(--navy); margin-bottom: 8px; }
.changelog-body ul { padding-left: 16px; color: var(--text-secondary); font-size: 14px; line-height: 1.7; }

/* ─── ON THIS PAGE ─── */
.on-this-page { position: fixed; right: max(24px, calc((100vw - var(--sidebar-width) - var(--content-max) - 96px - 200px) / 2 + 24px)); top: calc(var(--nav-height) + 40px); width: 180px; display: none; }
@media (min-width: 1280px) { .on-this-page { display: block; } }
.on-this-page-label { font-family: var(--font-mono); font-size: 10px; font-weight: 500; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 10px; display: block; }
.otp-link { display: block; font-size: 13px; color: var(--text-tertiary); padding: 4px 0 4px 12px; border-left: 2px solid transparent; transition: color 0.15s, border-color 0.15s; line-height: 1.4; margin-bottom: 2px; }
.otp-link:hover { color: var(--text); }
.otp-link.active { color: var(--rust); border-left-color: var(--rust); }
.otp-link.sub { font-size: 12px; padding-left: 20px; }

/* ─── TWEAKS ─── */
#tweaks-panel { display: none; position: fixed; bottom: 24px; right: 24px; background: var(--surface); border: 1.5px solid var(--border); border-radius: var(--radius); padding: 18px 20px; z-index: 500; box-shadow: var(--shadow-md); width: 220px; }
#tweaks-panel h4 { font-family: var(--font-display); font-size: 13px; font-weight: 700; color: var(--navy); margin-bottom: 14px; display: flex; align-items: center; justify-content: space-between; }
.tweaks-close { background: none; border: none; color: var(--text-tertiary); cursor: pointer; font-size: 16px; line-height: 1; }
.tweak-row { margin-bottom: 14px; }
.tweak-label { font-size: 12px; color: var(--text-secondary); margin-bottom: 6px; font-weight: 500; }
.tweak-options { display: flex; gap: 4px; flex-wrap: wrap; }
.tweak-opt { font-family: var(--font-mono); font-size: 11px; padding: 4px 9px; border: 1px solid var(--border); border-radius: 6px; cursor: pointer; background: none; color: var(--text-secondary); transition: all 0.15s; }
.tweak-opt:hover { border-color: var(--rust); color: var(--rust); }
.tweak-opt.active { background: var(--rust-pale); border-color: var(--rust); color: var(--rust); font-weight: 600; }
.tweak-toggle { display: flex; align-items: center; justify-content: space-between; font-size: 12px; color: var(--text-secondary); }
.toggle-switch { width: 34px; height: 20px; background: var(--border); border-radius: 20px; position: relative; cursor: pointer; transition: background 0.2s; border: none; flex-shrink: 0; }
.toggle-switch.on { background: var(--rust); }
.toggle-switch::after { content: ''; position: absolute; left: 3px; top: 3px; width: 14px; height: 14px; background: white; border-radius: 50%; transition: left 0.2s; }
.toggle-switch.on::after { left: 17px; }