@import url('https://fonts.googleapis.com/css2?family=Geist:wght@300;400;450;500;600&family=Geist+Mono:wght@300;400;450;500;600&display=swap');

:root {
  color-scheme: light dark;

  /* ── Light Mode Palette (Single Unified Canvas) ─────────────────── */
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-subtle: #ffffff;
  --stage-bg: #f8fafc;
  --chip-bg: #f1f5f9;
  --chip-hover: #e2e8f0;
  --chip-active: #cbd5e1;

  --text: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-faint: #94a3b8;

  --border: rgba(0, 0, 0, 0.08);
  --border-subtle: rgba(0, 0, 0, 0.04);
  --border-strong: rgba(0, 0, 0, 0.16);

  --card-bg: #ffffff;
  --card-border: rgba(0, 0, 0, 0.08);
  --card-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.04);
  --card-shadow-hover: 0 16px 40px 0 rgba(0, 0, 0, 0.07), 0 0 0 1px rgba(0, 0, 0, 0.06);

  /* ── Brand & Semantic Accents ────────────────────────────────────── */
  --brand: #007d9c;
  --brand-accent: #00add8;
  --brand-tint: #f0f9fc;
  --brand-border: #cbeaf4;

  --success: #059669;
  --success-bg: #f0fdf4;
  --success-border: #bbf7d0;
  --success-text: #166534;

  --warning: #d97706;
  --warning-bg: #fffbeb;
  --warning-border: #fde68a;
  --warning-text: #92400e;

  --error: #dc2626;
  --error-bg: #fef2f2;
  --error-border: #fecaca;
  --error-text: #991b1b;

  --info: #0284c7;
  --info-bg: #f0f9ff;
  --info-border: #bae6fd;
  --info-text: #075985;

  /* ── Syntax Highlighting Palette (Light) ────────────────────────── */
  --syn-keyword: #0284c7;
  --syn-string: #059669;
  --syn-property: #0f172a;
  --syn-flag: #d97706;
  --syn-comment: #94a3b8;
  --syn-number: #7c3aed;
  --syn-punct: #64748b;

  /* ── Typography Stacks (Geist & Geist Mono) ──────────────────────── */
  --font-sans: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, Monaco, Consolas, monospace;

  /* ── Geometry & Layout ───────────────────────────────────────────── */
  --page-max-width: min(1320px, 92vw);
  --docs-max-width: min(1440px, 94vw);
  --article-max-width: 860px;
  --sidebar-width: 250px;
  --header-height: 56px;
  --gutter: clamp(20px, 3.5vw, 48px);
  --column-gap: clamp(36px, 4vw, 72px);

  /* ── Radii ───────────────────────────────────────────────────────── */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 50px;

  /* ── Control Heights ─────────────────────────────────────────────── */
  --control-height-sm: 28px;
  --control-height: 36px;
  --control-height-lg: 40px;

  /* ── Motion & Easings ────────────────────────────────────────────── */
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);
}

/* ── Dark Mode ───────────────────────────────────────────────────── */
html[data-theme="dark"] {
  color-scheme: dark;

  --bg: #090a0c;
  --surface: #111215;
  --surface-subtle: #090a0c;
  --stage-bg: #14161a;
  --chip-bg: rgba(255, 255, 255, 0.08);
  --chip-hover: rgba(255, 255, 255, 0.14);
  --chip-active: rgba(255, 255, 255, 0.2);

  --text: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-faint: #64748b;

  --border: rgba(255, 255, 255, 0.08);
  --border-subtle: rgba(255, 255, 255, 0.04);
  --border-strong: rgba(255, 255, 255, 0.18);

  --card-bg: #111215;
  --card-border: rgba(255, 255, 255, 0.08);
  --card-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.4);
  --card-shadow-hover: 0 16px 40px 0 rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.12);

  --brand: #00add8;
  --brand-accent: #38c8ec;
  --brand-tint: rgba(0, 173, 216, 0.12);
  --brand-border: rgba(0, 173, 216, 0.26);

  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.1);
  --success-border: rgba(16, 185, 129, 0.22);
  --success-text: #34d399;

  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.1);
  --warning-border: rgba(245, 158, 11, 0.22);
  --warning-text: #fbbf24;

  --error: #ef4444;
  --error-bg: rgba(239, 68, 68, 0.1);
  --error-border: rgba(239, 68, 68, 0.22);
  --error-text: #f87171;

  --info: #38bdf8;
  --info-bg: rgba(56, 189, 248, 0.1);
  --info-border: rgba(56, 189, 248, 0.22);
  --info-text: #7dd3fc;

  /* ── Syntax Highlighting Palette (Dark) ─────────────────────────── */
  --syn-keyword: #38bdf8;
  --syn-string: #34d399;
  --syn-property: #f8fafc;
  --syn-flag: #fbbf24;
  --syn-comment: #64748b;
  --syn-number: #a78bfa;
  --syn-punct: #94a3b8;
}

/* --------------------------------------------------------------------------
   Reset & Global Baseline
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
  font-weight: 400;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 36px);
  transition: background-color 0.15s var(--ease-out), color 0.15s var(--ease-out);
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  font-weight: 400;
}

/* --------------------------------------------------------------------------
   Typographic Balance & Orphan/Widow Prevention (CSS Text Level 4)
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6,
.hero-title,
.hero-title-main,
.hero-title-sub,
.section-title,
.feature-title,
.sequence-title,
.sequence-info h4,
.faq-item-question,
.faq-accordion-summary,
.callout-title,
.search-result-title,
.lab-headline,
.lab-section-title {
  text-wrap: balance;
  -webkit-text-wrap: balance;
}

p,
.hero-description,
.section-subtitle,
.article p,
.article-lead,
.article li,
.feature-desc,
.sequence-info p,
.sequence-details-item,
.faq-accordion-body,
.faq-item-answer,
.callout p,
.data-table td,
.search-result-summary,
.lab-lead {
  text-wrap: pretty;
  -webkit-text-wrap: pretty;
}

p, h1, h2, h3, h4, h5, h6, li, dd, dt, figcaption {
  overflow-wrap: break-word;
}

/* Typographic Utility Classes */
.text-balance {
  text-wrap: balance;
  -webkit-text-wrap: balance;
}

.text-pretty {
  text-wrap: pretty;
  -webkit-text-wrap: pretty;
}

.text-nowrap {
  white-space: nowrap;
}

main {
  flex: 1;
  width: 100%;
}

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

.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  background: var(--text);
  color: var(--bg);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 450;
  z-index: 1000;
  transition: top 0.15s var(--ease-out);
}
.skip-link:focus {
  top: 16px;
}

a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.12s ease;
}
a:hover {
  color: var(--brand);
}

pre, code {
  font-family: var(--font-mono);
}

code:not(pre code) {
  font-family: var(--font-mono);
  font-size: 0.86em;
  font-weight: 400;
  padding: 2px 5px;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.05);
  color: var(--text);
  border: none;
}
html[data-theme="dark"] code:not(pre code) {
  background: rgba(255, 255, 255, 0.09);
  color: var(--text);
}

/* Syntax Highlighting Tokens */
.token-keyword { color: var(--syn-keyword); font-weight: 450; }
.token-string { color: var(--syn-string); font-weight: 400; }
.token-property { color: var(--syn-property); font-weight: 400; }
.token-flag { color: var(--syn-flag); font-weight: 400; }
.token-comment { color: var(--syn-comment); font-style: italic; font-weight: 400; }
.token-number { color: var(--syn-number); font-weight: 400; }
.token-punct { color: var(--syn-punct); font-weight: 400; }

/* --------------------------------------------------------------------------
   Full-Bleed Header System : Strict 36px Controls
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background-color 0.15s var(--ease-out), border-color 0.15s var(--ease-out);
}

html[data-theme="dark"] .site-header {
  background: rgba(9, 10, 12, 0.9);
}

.site-header-inner {
  max-width: var(--page-max-width);
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.header-brand-group {
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-weight: 450;
  font-size: 14px;
  letter-spacing: -0.02em;
  text-decoration: none;
}
.brand-link:hover {
  opacity: 0.85;
}

.brand-icon {
  width: 18px;
  height: 18px;
}

.brand-title {
  font-weight: 480;
  color: var(--text);
}

.header-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 20px;
  list-style: none;
}

.nav-link {
  font-size: 13.5px;
  font-weight: 400;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.12s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text);
  font-weight: 450;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* Strict 36px Height Pill Button Primitives */
.pill-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: var(--control-height);
  padding: 0 14px;
  border-radius: var(--radius-pill);
  background: var(--chip-bg);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 450;
  line-height: 1;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s var(--ease-out);
  white-space: nowrap;
}
.pill-btn:hover {
  background: var(--chip-hover);
  border-color: var(--border-strong);
  color: var(--text);
  transform: translateY(-1px);
}
.pill-btn:active {
  transform: scale(0.97);
}

.pill-search {
  color: var(--text-muted);
  gap: 8px;
}
.pill-search:hover {
  color: var(--text);
  background: var(--chip-hover);
}
.pill-search-kbd {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 450;
  opacity: 0.6;
}

.pill-cta {
  background: var(--brand-tint);
  color: var(--brand) !important;
  font-weight: 480;
  padding: 0 16px;
  border-color: var(--brand-border);
}
.pill-cta:hover {
  background: var(--brand);
  color: #ffffff !important;
  border-color: var(--brand);
  box-shadow: 0 2px 8px rgba(0, 125, 156, 0.25);
  transform: translateY(-1px);
}
html[data-theme="dark"] .pill-cta {
  background: rgba(0, 173, 216, 0.12);
  color: #38c8ec !important;
  border-color: rgba(0, 173, 216, 0.26);
}
html[data-theme="dark"] .pill-cta:hover {
  background: #00add8;
  color: #090a0b !important;
  border-color: #00add8;
  box-shadow: 0 2px 10px rgba(0, 173, 216, 0.35);
  transform: translateY(-1px);
}

.circle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--control-height);
  height: var(--control-height);
  border-radius: 50%;
  background: var(--chip-bg);
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.12s var(--ease-out);
}
.circle-btn:hover {
  background: var(--chip-hover);
  border-color: var(--border-strong);
  color: var(--text);
  transform: translateY(-1px);
}
.circle-btn:active {
  transform: scale(0.96);
}
.circle-btn svg {
  width: 15px;
  height: 15px;
  display: block;
  fill: currentColor;
}

.theme-icon-sun,
.theme-icon-moon {
  display: block;
}
html[data-theme="dark"] .theme-icon-sun {
  display: none !important;
}
html[data-theme="dark"] .theme-icon-moon {
  display: block !important;
}
html:not([data-theme="dark"]) .theme-icon-sun {
  display: block !important;
}
html:not([data-theme="dark"]) .theme-icon-moon {
  display: none !important;
}

.mobile-menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: var(--control-height);
  height: var(--control-height);
  background: var(--chip-bg);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text);
  cursor: pointer;
}

.mobile-nav-panel {
  display: none;
}

/* --------------------------------------------------------------------------
   General Buttons (Fully-Rounded Pill Geometry)
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: var(--control-height);
  padding: 0 18px;
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 450;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s var(--ease-out);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background-color: #0f172a;
  color: #ffffff !important;
  border-color: #0f172a;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}
.btn-primary:hover {
  background-color: #000000;
  border-color: #000000;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}
.btn-primary:active {
  transform: scale(0.97);
}
html[data-theme="dark"] .btn-primary {
  background-color: #ffffff;
  color: #090a0c !important;
  border-color: #ffffff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}
html[data-theme="dark"] .btn-primary:hover {
  background-color: #f1f5f9;
  border-color: #f1f5f9;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(255, 255, 255, 0.15);
}

.btn-outline {
  background-color: var(--surface);
  color: var(--text) !important;
  border-color: var(--border);
}
.btn-outline:hover {
  background-color: var(--chip-bg);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}
.btn-outline:active {
  transform: scale(0.97);
}

.btn-ghost {
  background-color: var(--chip-bg);
  color: var(--text) !important;
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  background-color: var(--chip-hover);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}
.btn-ghost:active {
  transform: scale(0.97);
}

.btn-sm {
  height: 32px;
  padding: 0 14px;
  font-size: 12px;
}

.btn-lg {
  height: 40px;
  padding: 0 24px;
  font-size: 13.5px;
  font-weight: 450;
}

/* --------------------------------------------------------------------------
   Unified 100dvh Viewport Stage Geometry (Identical Sizing Everywhere)
   -------------------------------------------------------------------------- */
.page-container {
  max-width: var(--page-max-width);
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section,
.hero-section {
  width: 100%;
  min-height: calc(100dvh - var(--header-height));
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: clamp(64px, 7vw, 96px) 0;
  border-bottom: 1px solid var(--border);
  position: relative;
  box-sizing: border-box;
  background-color: var(--bg);
}
.section:last-of-type {
  border-bottom: none;
}

.section-subtle {
  background-color: var(--bg);
}

.section-header {
  max-width: min(760px, 70ch);
  width: 100%;
  margin: 0 auto clamp(24px, 3.5vh, 40px);
  text-align: center;
}

.section-header-left {
  text-align: left;
  margin-left: 0;
  margin-right: 0;
}

.section-eyebrow {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 480;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 8px;
}

.section-title {
  font-size: clamp(24px, 2.6vw, 34px);
  font-weight: 480;
  letter-spacing: -0.025em;
  line-height: 1.22;
  color: var(--text);
  margin-bottom: 10px;
  text-wrap: balance;
  -webkit-text-wrap: balance;
}

.section-subtitle {
  font-size: clamp(14.5px, 1.05vw, 16px);
  line-height: 1.65;
  color: var(--text-muted);
  font-weight: 400;
  max-width: min(680px, 60ch);
  margin-left: auto;
  margin-right: auto;
  text-wrap: pretty;
  -webkit-text-wrap: pretty;
}

.section-header-left .section-subtitle {
  margin-left: 0;
  margin-right: 0;
}

/* --------------------------------------------------------------------------
   Hero Inner Layout
   -------------------------------------------------------------------------- */
.hero-inner {
  max-width: min(840px, 100%);
  width: 100%;
  margin: 0 auto;
  text-align: center;
}

.hero-logo-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.hero-logo-img {
  width: 64px;
  height: 64px;
  display: block;
  filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.30)) drop-shadow(0 0 4px rgba(255, 255, 255, 0.18));
}

html[data-theme="dark"] .hero-logo-img {
  filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.55)) drop-shadow(0 0 4px rgba(255, 255, 255, 0.30));
}


.hero-title {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  margin-bottom: 18px;
  text-wrap: balance;
  -webkit-text-wrap: balance;
}

.hero-title-main {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 480;
  line-height: 1.15;
  letter-spacing: -0.035em;
  color: var(--text);
  text-wrap: balance;
  -webkit-text-wrap: balance;
}

.hero-title-sub {
  font-size: clamp(24px, 3.2vw, 38px);
  font-weight: 380;
  line-height: 1.18;
  letter-spacing: -0.03em;
  color: var(--text-muted);
  text-wrap: balance;
  -webkit-text-wrap: balance;
}

.hero-description {
  font-size: clamp(14.5px, 1.1vw, 16px);
  line-height: 1.65;
  color: var(--text-muted);
  max-width: min(640px, 62ch);
  margin: 0 auto 24px;
  font-weight: 400;
  text-wrap: pretty;
  -webkit-text-wrap: pretty;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.hero-trust-bar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 8px 18px;
  border-radius: 50px;
  background-color: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
}

.trust-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  font-weight: 450;
  color: var(--text-secondary);
}

.trust-item svg {
  color: var(--brand);
  flex-shrink: 0;
}

.trust-sep {
  color: var(--text-faint);
  font-size: 14px;
}

/* --------------------------------------------------------------------------
   Comparison Diff Cards (Before vs After)
   -------------------------------------------------------------------------- */
.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(20px, 2.5vw, 36px);
  width: 100%;
}

.diff-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 18px;
  box-shadow: var(--card-shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.diff-header {
  padding: 12px 18px;
  background-color: var(--stage-bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 480;
}

.diff-header-negative {
  color: var(--error-text);
}

.diff-header-positive {
  color: var(--success-text);
}

.diff-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 50px;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 480;
  letter-spacing: 0.02em;
}
.diff-badge-neg {
  background-color: var(--error-bg);
  color: var(--error-text);
  border: 1px solid var(--error-border);
}
.diff-badge-pos {
  background-color: var(--success-bg);
  color: var(--success-text);
  border: 1px solid var(--success-border);
}

.diff-body {
  padding: clamp(16px, 2.2vh, 24px);
  font-family: var(--font-mono);
  font-size: clamp(11.5px, 0.9vw, 13px);
  line-height: 1.65;
  font-weight: 400;
  flex: 1;
  background-color: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.diff-line {
  padding: 3px 8px;
  border-radius: var(--radius-xs);
}
.diff-line-del {
  background-color: var(--error-bg);
  color: var(--error-text);
}
.diff-line-add {
  background-color: var(--success-bg);
  color: var(--success-text);
}
.diff-line-neutral {
  color: var(--text-secondary);
}
.diff-line-comment {
  color: var(--text-muted);
}

.diff-footer {
  padding: 12px 18px;
  background-color: var(--stage-bg);
  border-top: 1px solid var(--border);
  font-family: var(--font-sans);
  font-size: 12.5px;
  font-weight: 450;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* --------------------------------------------------------------------------
   3-Column Stage Cards with High-Contrast Hover State
   -------------------------------------------------------------------------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(18px, 2vw, 30px);
  width: 100%;
}

.feature-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out), border-color 0.2s var(--ease-out);
}

.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.07);
  border-color: var(--border-strong);
}

.feature-card:hover .pill-btn {
  background-color: #0f172a;
  color: #ffffff !important;
  border-color: #0f172a;
}
html[data-theme="dark"] .feature-card:hover .pill-btn {
  background-color: #ffffff;
  color: #090a0c !important;
  border-color: #ffffff;
}

.feature-preview {
  height: clamp(180px, 22vh, 220px);
  margin: 10px 10px 0;
  border-radius: 14px;
  background-color: var(--stage-bg);
  border: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.65;
  font-weight: 400;
}

.feature-body {
  padding: 16px 20px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

.feature-title {
  font-size: 14px;
  font-weight: 480;
  letter-spacing: -0.015em;
  color: var(--text);
  margin-bottom: 2px;
}

.feature-desc {
  font-size: 12.5px;
  color: var(--text-muted);
  font-weight: 400;
}

/* --------------------------------------------------------------------------
   Interactive Verification Sequence Explorer (Zero Shake / Stable Height)
   -------------------------------------------------------------------------- */
.sequence-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.03);
  overflow: hidden;
  width: 100%;
}

html[data-theme="dark"] .sequence-card {
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4), 0 1px 3px rgba(0, 0, 0, 0.2);
}

.sequence-header {
  padding: 12px 18px;
  background-color: var(--stage-bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.sequence-title {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 480;
  color: var(--text);
  letter-spacing: -0.01em;
}

.sequence-tabs {
  display: inline-flex;
  align-items: center;
  background-color: var(--chip-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  padding: 3px;
  gap: 2px;
}

.seq-tab-btn {
  background: transparent;
  border: none;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 450;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s var(--ease-out);
  white-space: nowrap;
}

.seq-tab-btn:hover {
  color: var(--text);
}

.seq-tab-btn.active {
  background-color: #0f172a;
  color: #ffffff !important;
  font-weight: 480;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.18);
}

html[data-theme="dark"] .seq-tab-btn.active {
  background-color: #ffffff;
  color: #090a0c !important;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

.sequence-body {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: clamp(20px, 3vw, 36px);
  padding: clamp(20px, 3vh, 32px);
  min-height: 420px;
  align-items: stretch;
}

.sequence-info {
  display: flex;
  flex-direction: column;
  min-height: 340px;
}

.sequence-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 50px;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 480;
  letter-spacing: 0.02em;
  margin-bottom: 10px;
  align-self: flex-start;
}
.badge-azure {
  background-color: var(--info-bg);
  color: var(--info-text);
  border: 1px solid var(--info-border);
}
.badge-emerald {
  background-color: var(--success-bg);
  color: var(--success-text);
  border: 1px solid var(--success-border);
}
.badge-amber {
  background-color: var(--warning-bg);
  color: var(--warning-text);
  border: 1px solid var(--warning-border);
}

.sequence-info h4 {
  font-size: 17px;
  font-weight: 480;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 8px;
}

.sequence-info p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 14px;
  font-weight: 400;
}

.sequence-details-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.sequence-details-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 400;
}

.sequence-details-icon {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 500;
  flex-shrink: 0;
  margin-top: 2px;
}
.icon-success { background-color: var(--success-bg); color: var(--success-text); border: 1px solid var(--success-border); }
.icon-info { background-color: var(--info-bg); color: var(--info-text); border: 1px solid var(--info-border); }
.icon-warn { background-color: var(--warning-bg); color: var(--warning-text); border: 1px solid var(--warning-border); }

.sequence-nav-buttons {
  display: flex;
  gap: 10px;
  margin-top: auto;
}

.sequence-code-pane {
  background-color: var(--stage-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 340px;
}

.sequence-code-header {
  padding: 10px 16px;
  background-color: var(--chip-bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 480;
  color: var(--text-muted);
}

.sequence-code-content {
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  font-weight: 400;
  color: var(--text);
  overflow-x: auto;
  flex: 1;
  background-color: var(--surface);
}

/* --------------------------------------------------------------------------
   Code Block Primitives & Terminal Snippets
   -------------------------------------------------------------------------- */
.code-block {
  background-color: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.03);
  overflow: hidden;
  margin: 20px 0 24px;
  width: 100%;
}

html[data-theme="dark"] .code-block {
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5), 0 1px 3px rgba(0, 0, 0, 0.3);
}

.code-block-header {
  padding: 12px 18px;
  background-color: var(--stage-bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.code-block-body {
  padding: 22px 24px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
  font-weight: 400;
  color: var(--text);
  overflow-x: auto;
  background-color: var(--surface);
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}
.code-block-body pre {
  margin: 0;
  white-space: pre;
  width: 100%;
}

/* SVG Copy Buttons — icon only */
.copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
  transition: all 0.15s var(--ease-out);
}

.copy-btn svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  display: block;
}

.copy-btn:hover {
  background-color: var(--chip-bg);
  color: var(--text);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.copy-btn.copied {
  background-color: var(--success-bg);
  border-color: var(--success-border);
  color: var(--success-text);
}

/* Segmented Control with Recessed Pill Track */
.segmented-control {
  display: inline-flex;
  align-items: center;
  background-color: var(--chip-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  padding: 3px;
  gap: 2px;
}

.segmented-btn {
  background: transparent;
  border: none;
  padding: 5px 16px;
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 450;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s var(--ease-out);
}

.segmented-btn:hover {
  color: var(--text);
}

.segmented-btn.active {
  background-color: #0f172a;
  color: #ffffff !important;
  font-weight: 480;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.18);
}

html[data-theme="dark"] .segmented-btn.active {
  background-color: #ffffff;
  color: #090a0c !important;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

/* WebMCP Unified Pill Controls Bar */
.webmcp-controls-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 18px;
  height: 52px;
  min-height: 52px;
  max-height: 52px;
  box-sizing: border-box;
  background-color: var(--stage-bg);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}

.webmcp-pill-control {
  position: relative;
  display: inline-flex;
  align-items: center;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  height: 32px;
  padding: 0 24px 0 10px;
  gap: 7px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
  transition: all 0.15s var(--ease-out);
  cursor: pointer;
  box-sizing: border-box;
}

.webmcp-pill-control:hover {
  border-color: var(--border-strong);
  background-color: var(--chip-bg);
}

.webmcp-pill-control:focus-within {
  border-color: var(--text);
  box-shadow: 0 0 0 2px var(--brand-tint);
}

.webmcp-control-icon {
  width: 13px;
  height: 13px;
  color: var(--text-muted);
  flex-shrink: 0;
  display: inline-block;
  vertical-align: middle;
  pointer-events: none;
}

.webmcp-pill-control:hover .webmcp-control-icon,
.webmcp-pill-control:focus-within .webmcp-control-icon {
  color: var(--text);
}

.webmcp-select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background: transparent;
  border: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 480;
  color: var(--text);
  cursor: pointer;
  outline: none;
  display: inline-block;
  vertical-align: middle;
  line-height: 1.2;
}

.webmcp-chevron-icon {
  position: absolute;
  right: 9px;
  top: 50%;
  transform: translateY(-50%);
  width: 10px;
  height: 10px;
  color: var(--text-muted);
  pointer-events: none;
  display: block;
}

.webmcp-pill-control:hover .webmcp-chevron-icon {
  color: var(--text);
}

.webmcp-pill-input {
  flex: 1;
  max-width: 380px;
  padding-right: 12px;
  cursor: text;
}

.webmcp-pill-input .webmcp-input {
  background: transparent;
  border: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  color: var(--text);
  width: 100%;
  outline: none;
  display: inline-block;
  vertical-align: middle;
  line-height: 1.2;
}

/* Quickstart Stage Exact Dimension Lock (Zero Layout Shift on Tab Toggle) */
#install .code-block {
  height: 400px;
  min-height: 400px;
  max-height: 400px;
  display: flex;
  flex-direction: column;
}

#install .code-block-header {
  height: 52px;
  min-height: 52px;
  max-height: 52px;
  box-sizing: border-box;
}

#install [data-tab-content="install-tabs"] {
  height: calc(400px - 52px);
  min-height: calc(400px - 52px);
  max-height: calc(400px - 52px);
  display: flex;
  flex-direction: column;
}

#install [data-tab-content="install-tabs"][hidden],
#install [data-tab-content="install-tabs"][style*="display: none"] {
  display: none !important;
}

#install .webmcp-controls-bar {
  height: 54px;
  min-height: 54px;
  max-height: 54px;
  box-sizing: border-box;
  flex-shrink: 0;
}

#install .code-block-body {
  flex: 1;
  height: calc(400px - 52px - 54px);
  min-height: calc(400px - 52px - 54px);
  max-height: calc(400px - 52px - 54px);
  overflow-y: auto;
  overflow-x: auto;
  box-sizing: border-box;
}

/* --------------------------------------------------------------------------
   Homepage FAQ Section (Asymmetric Split Accordion)
   -------------------------------------------------------------------------- */
.faq-split-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: clamp(32px, 4vw, 72px);
  align-items: start;
  width: 100%;
}

.faq-split-sidebar {
  position: sticky;
  top: calc(var(--header-height) + 32px);
}

.faq-accordion-list {
  display: flex;
  flex-direction: column;
}

.faq-accordion-item {
  border-bottom: 1px solid var(--border);
  padding: 22px 0;
}
.faq-accordion-item:first-child {
  padding-top: 0;
}
.faq-accordion-item:last-child {
  border-bottom: none;
}

.faq-accordion-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 16px;
  font-weight: 480;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: color 0.12s ease;
}
.faq-accordion-summary::-webkit-details-marker {
  display: none;
}
.faq-accordion-summary:hover {
  color: var(--brand);
}

.faq-accordion-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--chip-bg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  line-height: 1;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: transform 0.15s var(--ease-out), background-color 0.15s var(--ease-out), color 0.15s var(--ease-out);
}
.faq-accordion-item[open] .faq-accordion-icon {
  transform: rotate(45deg);
  background: var(--brand-tint);
  color: var(--brand);
}

.faq-accordion-body {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-secondary);
  font-weight: 400;
  animation: faqFadeIn 0.15s var(--ease-out);
}

@keyframes faqFadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 36px;
  margin: 36px 0;
}

.faq-item {
  padding-bottom: 30px;
  border-bottom: 1px solid var(--border);
}
.faq-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.faq-num-title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 10px;
}

.faq-number {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  color: var(--brand);
  flex-shrink: 0;
}

.faq-item-question {
  font-family: var(--font-sans);
  font-size: 16.5px;
  font-weight: 480;
  letter-spacing: -0.015em;
  color: var(--text);
  line-height: 1.35;
}

.faq-item-answer {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-secondary);
  padding-left: 32px;
  font-weight: 400;
}

/* --------------------------------------------------------------------------
   Documentation Hub Layout : Spacious, Clean & Dynamic
   -------------------------------------------------------------------------- */
.docs-layout {
  max-width: var(--docs-max-width);
  margin: 0 auto;
  padding: 48px var(--gutter) 96px;
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  gap: var(--column-gap);
  align-items: start;
}

.docs-sidebar {
  position: sticky;
  top: calc(var(--header-height) + 24px);
  max-height: calc(100vh - var(--header-height) - 40px);
  overflow-y: auto;
  padding-right: 8px;
}

.sidebar-group {
  margin-bottom: 28px;
}

.sidebar-heading {
  font-size: 11.5px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
  margin-bottom: 10px;
  padding-left: 12px;
}

.sidebar-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.sidebar-link {
  display: flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: 13.5px;
  color: var(--text-secondary);
  font-weight: 400;
  text-decoration: none;
  transition: all 0.12s ease;
}

.sidebar-link:hover {
  background-color: var(--chip-bg);
  color: var(--text);
}

.sidebar-link.active {
  background-color: var(--brand-tint);
  color: var(--brand);
  font-weight: 480;
}

.docs-content {
  min-width: 0;
  max-width: var(--article-max-width);
}

.breadcrumbs {
  margin-bottom: 20px;
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  font-size: 12.5px;
  color: var(--text-muted);
  font-weight: 400;
}

.breadcrumb-list a {
  color: var(--text-muted);
  text-decoration: none;
}
.breadcrumb-list a:hover {
  color: var(--text);
}

.breadcrumb-sep {
  color: var(--text-faint);
}

.article h1 {
  font-size: clamp(26px, 2.8vw, 34px);
  font-weight: 480;
  letter-spacing: -0.03em;
  line-height: 1.25;
  color: var(--text);
  margin-bottom: 16px;
  text-wrap: balance;
  -webkit-text-wrap: balance;
}

.article-lead {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 36px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
  font-weight: 400;
  text-wrap: pretty;
  -webkit-text-wrap: pretty;
}

.article h2 {
  font-size: 20px;
  font-weight: 480;
  letter-spacing: -0.02em;
  line-height: 1.35;
  color: var(--text);
  margin: 48px 0 16px;
  scroll-margin-top: calc(var(--header-height) + 24px);
  text-wrap: balance;
  -webkit-text-wrap: balance;
}

.article h3 {
  font-size: 16px;
  font-weight: 480;
  letter-spacing: -0.01em;
  line-height: 1.4;
  color: var(--text);
  margin: 32px 0 12px;
  scroll-margin-top: calc(var(--header-height) + 24px);
  text-wrap: balance;
  -webkit-text-wrap: balance;
}

.article p {
  margin-bottom: 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-secondary);
  font-weight: 400;
  text-wrap: pretty;
  -webkit-text-wrap: pretty;
}

.article ul, .article ol {
  margin-bottom: 24px;
  padding-left: 22px;
}

.article li {
  margin-bottom: 8px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-secondary);
  font-weight: 400;
  text-wrap: pretty;
  -webkit-text-wrap: pretty;
}

.article strong {
  color: var(--text);
  font-weight: 480;
}

/* Callout Cards */
.callout {
  background-color: var(--stage-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px 22px;
  margin: 28px 0;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
}

.callout-info {
  background-color: var(--brand-tint);
  border-color: var(--brand-border);
}
.callout-warning {
  background-color: var(--warning-bg);
  border-color: var(--warning-border);
}
.callout-success {
  background-color: var(--success-bg);
  border-color: var(--success-border);
}

.callout-title {
  font-weight: 480;
  font-size: 14px;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.callout-info .callout-title { color: var(--brand); }
.callout-warning .callout-title { color: var(--warning-text); }
.callout-success .callout-title { color: var(--success-text); }

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

.table-container {
  background-color: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--card-shadow);
  overflow-x: auto;
  margin: 28px 0;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13.5px;
}

.data-table th {
  background-color: var(--stage-bg);
  padding: 12px 20px;
  font-weight: 480;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.data-table td {
  padding: 13px 20px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  line-height: 1.6;
  vertical-align: top;
  font-weight: 400;
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table td.cell-highlight {
  color: var(--text);
  font-weight: 480;
}

.docs-nav-footer {
  margin-top: 64px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

/* --------------------------------------------------------------------------
   Substack-Style Floating Section Navigator
   -------------------------------------------------------------------------- */
.floating-nav {
  position: fixed;
  right: clamp(14px, 2vw, 28px);
  top: 50%;
  transform: translateY(-50%);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  pointer-events: auto;
}

.floating-nav-track {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}

.floating-nav-item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  background: transparent;
  border: none;
  padding: 8px 0 8px 24px;
  cursor: pointer;
  outline: none;
}

.floating-nav-dash {
  display: block;
  width: 14px;
  height: 2px;
  border-radius: 2px;
  background-color: var(--text-faint);
  opacity: 0.35;
  transition: all 0.18s var(--ease-out);
}

.floating-nav-item:hover .floating-nav-dash {
  width: 20px;
  background-color: var(--text);
  opacity: 0.8;
}

.floating-nav-item.active .floating-nav-dash {
  width: 24px;
  height: 2.5px;
  background-color: var(--text);
  opacity: 1;
}

.floating-nav-label {
  position: absolute;
  right: calc(100% + 12px);
  background-color: var(--surface);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 480;
  white-space: nowrap;
  padding: 5px 13px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.04);
  opacity: 0;
  transform: translateX(6px);
  pointer-events: none;
  transition: opacity 0.15s var(--ease-out), transform 0.15s var(--ease-out);
}

html[data-theme="dark"] .floating-nav-label {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5), 0 1px 3px rgba(0, 0, 0, 0.2);
}

.floating-nav-item:hover .floating-nav-label,
.floating-nav-item.active:hover .floating-nav-label {
  opacity: 1;
  transform: translateX(0);
}

@media (max-width: 1100px) {
  .floating-nav {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   Site Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--surface);
  border-top: 1px solid var(--border);
  padding: 32px 0;
  margin-top: auto;
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 400;
}

.site-footer-inner {
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.footer-attribution {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 400;
}

.footer-entity-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text) !important;
  font-weight: 480;
  font-size: 12.5px;
  text-decoration: none;
  padding: 3px 10px 3px 5px;
  border-radius: var(--radius-pill);
  background-color: var(--chip-bg);
  border: 1px solid var(--border);
  transition: all 0.15s var(--ease-out);
}

.footer-entity-link:hover {
  background-color: var(--chip-hover);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.footer-avatar-img {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}

.footer-logo-img {
  width: 15px;
  height: 15px;
  display: block;
}

.footer-dot {
  color: var(--text-faint);
  font-size: 13px;
}

.footer-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  list-style: none;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 400;
  transition: color 0.12s ease;
}
.footer-links a:hover {
  color: var(--text);
}

/* --------------------------------------------------------------------------
   Search Modal (⌘K Dialog)
   -------------------------------------------------------------------------- */
.search-modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 9999;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 12vh;
}

.search-modal-backdrop.active {
  display: flex;
}

.search-modal-dialog {
  background-color: var(--surface);
  width: 90%;
  max-width: 560px;
  border-radius: 18px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border);
  overflow: hidden;
  animation: modalIn 0.12s var(--ease-out);
}

@keyframes modalIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.search-modal-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background-color: var(--surface);
}

.search-modal-input-wrapper .search-icon {
  color: var(--text-faint);
  margin-right: 10px;
  flex-shrink: 0;
}

.search-modal-input {
  flex: 1;
  border: none;
  background: transparent;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 400;
  color: var(--text);
  outline: none;
}

.search-modal-esc {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 450;
  padding: 2px 6px;
  background-color: var(--chip-bg);
  border: 1px solid var(--border);
  border-radius: 50px;
  color: var(--text-muted);
}

.search-modal-results {
  max-height: 340px;
  overflow-y: auto;
  padding: 6px;
}

.search-result-item {
  display: block;
  padding: 10px 14px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--text);
  transition: background-color 0.12s ease;
}

.search-result-item:hover,
.search-result-item.focused {
  background-color: var(--chip-bg);
}

.search-result-title {
  font-weight: 480;
  font-size: 13px;
  color: var(--text);
  margin-bottom: 2px;
}

.search-result-summary {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
  margin-bottom: 2px;
  font-weight: 400;
}

.search-result-path {
  font-family: var(--font-sans);
  font-size: 11.5px;
  color: var(--brand);
  font-weight: 400;
}

.search-empty-state {
  padding: 24px 16px;
  text-align: center;
  font-size: 12.5px;
  color: var(--text-muted);
  font-weight: 400;
}

/* --------------------------------------------------------------------------
   Responsive Rules (Tailored Mobile Design System)
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .section,
  .hero-section {
    min-height: auto;
    padding: 64px 0;
  }
}

@media (max-width: 960px) {
  .nav-list {
    display: none;
  }
  .mobile-menu-btn {
    display: inline-flex;
  }

  /* Hide nav pill-btns from header-actions; keep only icon circle-btns + hamburger */
  .header-actions .pill-btn {
    display: none;
  }

  /* ── Mobile Dropdown Navigation Panel ── */
  .mobile-nav-panel {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.12);
    padding: 12px var(--gutter) 16px;
    z-index: 999;
    animation: mobileNavSlide 0.18s var(--ease-out);
  }

  html[data-theme="dark"] .mobile-nav-panel {
    background: rgba(17, 18, 21, 0.98);
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.5);
  }

  .mobile-nav-panel.open {
    display: flex;
    flex-direction: column;
    gap: 4px;
  }

  .mobile-nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    color: var(--text);
    text-decoration: none;
    font-size: 13.5px;
    font-weight: 450;
    transition: all 0.12s var(--ease-out);
  }

  .mobile-nav-link:hover,
  .mobile-nav-link.active {
    background-color: var(--chip-bg);
    color: var(--brand);
  }

  .mobile-nav-link svg {
    color: var(--text-faint);
  }

  .mobile-nav-divider {
    height: 1px;
    background-color: var(--border);
    margin: 6px 0;
  }

  .docs-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .docs-sidebar {
    display: none;
    position: static;
    max-height: none;
    border-bottom: 1px solid var(--border);
    padding-bottom: 20px;
    margin-bottom: 20px;
  }
  .docs-sidebar.mobile-open {
    display: block;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .comparison-grid {
    grid-template-columns: 1fr;
  }
  .sequence-body {
    grid-template-columns: 1fr;
  }
  .faq-split-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .faq-split-sidebar {
    position: static;
  }
}

@keyframes mobileNavSlide {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 600px) {
  :root {
    --gutter: 16px;
    --header-height: 52px;
  }

  /* ── Header ── */
  .brand-title {
    white-space: nowrap;
  }

  /* ── Hero Section ── */
  .hero-section {
    min-height: auto;
    padding: 40px 0 28px;
  }
  .hero-logo-img {
    width: 52px;
    height: 52px;
  }
  .hero-title-main {
    font-size: 27px;
    letter-spacing: -0.03em;
  }
  .hero-title-sub {
    font-size: 20px;
    letter-spacing: -0.025em;
  }
  .hero-description {
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
  }
  .hero-actions {
    width: 100%;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 18px;
  }
  .hero-actions .btn {
    width: 100%;
    max-width: 320px;
    height: 40px;
    font-size: 13.5px;
  }

  /* ── Hero Trust Bar (Structured Micro-Card Stack) ── */
  .hero-trust-bar {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
    padding: 8px;
    border-radius: 14px;
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    box-shadow: var(--card-shadow);
    gap: 6px;
  }
  .trust-sep {
    display: none;
  }
  .trust-item {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 8px;
    padding: 7px 12px;
    border-radius: 8px;
    background-color: var(--stage-bg);
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 450;
    width: 100%;
    text-align: left;
    box-sizing: border-box;
  }
  .trust-item svg {
    width: 14px;
    height: 14px;
    color: var(--brand);
    flex-shrink: 0;
  }

  /* ── Universal Code Blocks & Terminal Snippets ── */
  .code-block,
  #install .code-block,
  .docs-content .code-block {
    height: auto;
    min-height: 0;
    max-height: none;
    border-radius: 14px;
    margin: 16px 0 20px;
  }
  .code-block-header,
  #install .code-block-header {
    height: auto;
    min-height: 44px;
    max-height: none;
    padding: 10px 14px;
    gap: 8px;
  }
  .code-block-title {
    font-size: 12px;
  }
  #install [data-tab-content="install-tabs"] {
    height: auto;
    min-height: 0;
    max-height: none;
  }
  .code-block-body,
  #install .code-block-body,
  .docs-content .code-block-body {
    height: auto;
    min-height: 0;
    max-height: none;
    padding: 14px 16px;
    font-size: 12px;
    line-height: 1.6;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .code-block-body pre {
    white-space: pre;
    font-size: 12px;
    width: 100%;
  }

  /* ── WebMCP Controls Bar (Touch Form Control Stack) ── */
  .webmcp-controls-bar,
  #install .webmcp-controls-bar,
  .docs-content .webmcp-controls-bar {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    height: auto;
    min-height: 0;
    max-height: none;
    padding: 10px 14px;
    gap: 8px;
    overflow-x: visible;
  }
  .webmcp-pill-control {
    width: 100%;
    height: 36px;
    padding: 0 28px 0 12px;
    box-sizing: border-box;
    display: flex;
  }
  .webmcp-select {
    width: 100%;
    font-size: 12.5px;
  }
  .webmcp-pill-input {
    max-width: 100%;
    width: 100%;
    padding-right: 12px;
  }
  .webmcp-pill-input .webmcp-input {
    width: 100%;
    font-size: 12px;
  }

  /* ── Comparison Diff Cards ── */
  .comparison-grid {
    gap: 16px;
  }
  .diff-card {
    border-radius: 14px;
  }
  .diff-header {
    padding: 10px 14px;
    font-size: 12px;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
  .diff-badge {
    align-self: flex-start;
    font-size: 11px;
  }
  .diff-body {
    padding: 12px 14px;
    font-size: 11.5px;
    line-height: 1.5;
    gap: 4px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .diff-line {
    white-space: pre-wrap;
    word-break: break-word;
    font-size: 11.5px;
  }
  .diff-footer {
    padding: 10px 14px;
    font-size: 11.5px;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  /* ── Capabilities Feature Cards ── */
  .feature-card {
    border-radius: 14px;
  }
  .feature-preview {
    padding: 14px;
    font-size: 11.5px;
  }
  .feature-body {
    padding: 14px;
  }
  .feature-title {
    font-size: 14.5px;
  }

  /* ── Verification Pipeline Sequence Explorer ── */
  .sequence-card {
    border-radius: 14px;
  }
  .sequence-header {
    padding: 12px 14px;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .sequence-tabs {
    display: flex;
    overflow-x: auto;
    width: 100%;
    padding: 3px;
    gap: 4px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    border-radius: var(--radius-pill);
    box-sizing: border-box;
  }
  .sequence-tabs::-webkit-scrollbar {
    display: none;
  }
  .seq-tab-btn {
    flex-shrink: 0;
    padding: 5px 12px;
    font-size: 11.5px;
  }
  .sequence-body {
    padding: 14px;
    min-height: auto;
    gap: 16px;
    grid-template-columns: 1fr;
  }
  .sequence-info {
    min-height: auto;
  }
  .sequence-info h4 {
    font-size: 16px;
  }
  .sequence-info p {
    font-size: 13px;
  }
  .sequence-code-pane {
    min-height: auto;
    border-radius: 10px;
  }
  .sequence-code-header {
    padding: 8px 12px;
    font-size: 11px;
  }
  .sequence-code-content {
    padding: 12px;
    font-size: 11.5px;
    line-height: 1.5;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* ── FAQ Split View ── */
  .faq-split-grid {
    gap: 20px;
  }
  .faq-category-nav {
    display: flex;
    overflow-x: auto;
    width: 100%;
    padding: 3px;
    gap: 4px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    border-radius: var(--radius-pill);
    box-sizing: border-box;
  }
  .faq-category-nav::-webkit-scrollbar {
    display: none;
  }
  .faq-cat-btn {
    flex-shrink: 0;
    padding: 5px 12px;
    font-size: 12px;
  }

  /* ── Search Modal ── */
  .search-modal-backdrop {
    padding-top: 6vh;
    padding-left: 12px;
    padding-right: 12px;
  }
  .search-modal-dialog {
    width: 100%;
    max-width: 100%;
    border-radius: 14px;
  }

  /* ── General Elements ── */
  .section {
    min-height: auto;
    padding: 44px 0;
  }
  .article h1 {
    font-size: 25px;
  }
  .site-footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }
}