:root {
  --bg: #081019;
  --bg-soft: #0d1826;
  --panel: rgba(10, 18, 29, 0.86);
  --panel-2: rgba(14, 25, 40, 0.94);
  --border: rgba(139, 184, 255, 0.18);
  --text: #eef5ff;
  --muted: #9aaec6;
  --accent: #6ca7ff;
  --accent-2: #6de0be;
  --accent-3: #18304c;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.32);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --max: 1180px;
  --chrome-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(243, 247, 252, 0.95));
  --chrome-border: rgba(156, 170, 189, 0.34);
  --chrome-text: #1b2840;
  --chrome-muted: rgba(27, 40, 64, 0.7);
  --chrome-logo-bg: rgba(255, 255, 255, 0.92);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(108, 167, 255, 0.15), transparent 32%),
    radial-gradient(circle at 86% 14%, rgba(109, 224, 190, 0.11), transparent 24%),
    linear-gradient(180deg, #07111a 0%, #09131f 36%, #08111a 100%);
  color: var(--text);
  font-family: "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
}

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

a {
  color: inherit;
  text-decoration: none;
}

code {
  padding: 2px 6px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  color: #dce8ff;
  font-size: 0.95em;
}

.container {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: var(--chrome-bg);
  border-bottom: 1px solid var(--chrome-border);
  box-shadow: 0 10px 24px rgba(11, 18, 31, 0.12);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 78px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 52px;
  height: 52px;
  flex: 0 0 52px;
  border-radius: 18px;
  overflow: hidden;
  background: var(--chrome-logo-bg);
  border: 1px solid rgba(184, 195, 211, 0.72);
  box-shadow: 0 10px 22px rgba(20, 29, 51, 0.1);
}

.brand-logo img {
  width: 114%;
  height: 114%;
  max-width: none;
  margin: -7%;
}

.brand span {
  display: grid;
}

.brand strong {
  font-size: 16px;
  letter-spacing: 0.01em;
  color: var(--chrome-text);
}

.brand em {
  color: var(--chrome-muted);
  font-style: normal;
  font-size: 12px;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--chrome-muted);
  font-size: 14px;
}

.site-nav a:hover,
.site-nav a[aria-current="page"],
.footer-links a:hover,
.inline-link:hover {
  color: var(--chrome-text);
}

.hero-band,
.section,
.page-hero {
  padding: 56px 0;
}

.hero-grid,
.page-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 32px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(14, 24, 38, 0.72);
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.08;
}

h1 {
  margin-top: 18px;
  font-size: clamp(40px, 7vw, 66px);
  max-width: 760px;
}

h2 {
  font-size: clamp(30px, 4vw, 46px);
  max-width: 860px;
}

h3 {
  font-size: 21px;
}

.lede,
.section-heading p,
.info-card p,
.support-panel p,
.doc-card p,
.doc-body p,
.doc-body li,
.checklist li,
.cta-copy p,
.footer-copy,
.muted {
  color: var(--muted);
}

.lede {
  margin: 18px 0 0;
  max-width: 740px;
  font-size: 18px;
}

.hero-actions,
.card-actions,
.support-actions,
.doc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid rgba(139, 184, 255, 0.22);
  background: linear-gradient(135deg, rgba(108, 167, 255, 0.2), rgba(109, 224, 190, 0.12));
  color: var(--text);
  font-weight: 700;
  box-shadow: var(--shadow);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  box-shadow: none;
}

.button.ghost {
  background: rgba(18, 34, 53, 0.65);
  color: #dfe8f8;
  box-shadow: none;
}

.hero-points,
.checklist,
.doc-list {
  margin: 24px 0 0;
  padding-left: 20px;
  color: var(--muted);
}

.hero-points li + li,
.checklist li + li,
.doc-list li + li {
  margin-top: 8px;
}

.hero-panel,
.support-panel,
.doc-card,
.info-card,
.cta-panel,
.doc-shell,
.notice-panel {
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.hero-panel,
.doc-shell,
.notice-panel,
.support-panel,
.info-card,
.doc-card,
.cta-panel {
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(13, 24, 38, 0.96), rgba(8, 18, 29, 0.9));
}

.hero-panel {
  padding: 30px;
}

.hero-panel-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.hero-panel-title .mini-logo {
  width: 46px;
  height: 46px;
  padding: 6px;
  border-radius: 16px;
  background: rgba(15, 28, 43, 0.8);
  border: 1px solid var(--border);
}

.hero-panel-title h3 {
  font-size: 22px;
}

.section-heading {
  margin-bottom: 28px;
}

.section-heading p {
  max-width: 780px;
  margin-top: 14px;
}

.card-grid {
  display: grid;
  gap: 20px;
}

.feature-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.support-grid,
.docs-grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.info-card,
.doc-card,
.support-panel {
  padding: 24px;
}

.info-card h3,
.doc-card h3,
.support-panel h3 {
  margin-bottom: 10px;
}

.card-kicker {
  display: inline-flex;
  margin-bottom: 10px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(108, 167, 255, 0.12);
  color: #cfe0ff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.section-contrast {
  background: rgba(7, 15, 24, 0.32);
  border-top: 1px solid rgba(139, 184, 255, 0.08);
  border-bottom: 1px solid rgba(139, 184, 255, 0.08);
}

.doc-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 24px;
  padding: 26px;
}

.doc-sidebar {
  position: sticky;
  top: 100px;
  align-self: start;
  display: grid;
  gap: 14px;
}

.sidebar-card {
  padding: 18px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: rgba(14, 24, 38, 0.78);
}

.sidebar-card h3 {
  margin-bottom: 10px;
  font-size: 17px;
}

.sidebar-links {
  display: grid;
  gap: 10px;
}

.sidebar-links a {
  color: var(--muted);
}

.sidebar-links a:hover,
.sidebar-links a[aria-current="page"] {
  color: var(--text);
}

.doc-body {
  min-width: 0;
}

.doc-body section + section {
  margin-top: 30px;
}

.doc-body h2 {
  font-size: clamp(26px, 4vw, 38px);
  margin-bottom: 12px;
}

.doc-body h3 {
  margin: 18px 0 10px;
}

.doc-body pre {
  overflow-x: auto;
  padding: 16px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
}

.compatibility-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.ide-card {
  padding: 22px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: rgba(14, 24, 38, 0.78);
  box-shadow: var(--shadow);
}

.ide-card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.ide-mark {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  flex: 0 0 58px;
  padding: 10px;
  border-radius: 18px;
  border: 1px solid rgba(139, 184, 255, 0.18);
  background: rgba(255, 255, 255, 0.04);
}

.ide-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.ide-card h3 {
  font-size: 18px;
}

.version-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.version-chip {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid rgba(139, 184, 255, 0.18);
  background: rgba(108, 167, 255, 0.12);
  color: #dce8ff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.compatibility-note {
  margin-top: 18px;
  color: var(--muted);
}

.compatibility-note p {
  margin: 0;
}

.compatibility-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.notice-panel,
.cta-panel {
  display: grid;
  gap: 14px;
  padding: 24px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--chrome-muted);
}

.site-footer {
  padding: 26px 0 36px;
  margin-top: 24px;
  border-top: 1px solid var(--chrome-border);
  background: var(--chrome-bg);
  box-shadow: 0 -10px 24px rgba(11, 18, 31, 0.08);
}

.footer-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer-copy {
  margin-top: 18px;
  font-size: 14px;
  color: var(--chrome-muted);
}

.inline-link {
  color: #cfe0ff;
  text-decoration: underline;
  text-decoration-color: rgba(108, 167, 255, 0.4);
  text-underline-offset: 3px;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: rgba(14, 24, 38, 0.78);
  overflow: hidden;
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 20px;
  font-weight: 700;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  float: right;
  color: var(--accent-2);
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-answer {
  padding: 0 20px 20px;
  color: var(--muted);
}

.faq-answer p:last-child,
.faq-answer ul:last-child {
  margin-bottom: 0;
}

@media (max-width: 1040px) {
  .hero-grid,
  .page-grid,
  .doc-shell,
  .feature-grid,
  .support-grid,
  .docs-grid {
    grid-template-columns: 1fr;
  }

  .doc-sidebar {
    position: static;
  }
}

@media (max-width: 720px) {
  .nav-shell,
  .footer-grid {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-band,
  .section,
  .page-hero {
    padding: 40px 0;
  }

  .hero-panel,
  .info-card,
  .doc-card,
  .support-panel,
  .doc-shell,
  .notice-panel,
  .cta-panel {
    border-radius: 20px;
  }
}