:root {
  --bg: #030814;
  --bg-2: #071223;
  --panel: rgba(9, 18, 36, 0.78);
  --panel-2: rgba(8, 17, 34, 0.90);
  --text: #eaf2ff;
  --muted: #9db1d2;
  --brand: #50c6ff;
  --brand-2: #78d8ff;
  --brand-3: #2f9bff;
  --line: rgba(125, 169, 234, 0.18);
  --shadow: 0 28px 72px rgba(1, 6, 18, 0.48);
  --scroll-thumb: rgba(80, 198, 255, 0.35);
  --radius: 24px;
  --max: 1200px;
  --header-h: 76px;
}
[data-theme="light"] {
  --bg: #eef6ff;
  --bg-2: #f9fbff;
  --panel: rgba(255,255,255,.78);
  --panel-2: rgba(255,255,255,.92);
  --text: #0f172a;
  --muted: #5a6f8d;
  --brand: #0f8ae8;
  --brand-2: #38bdf8;
  --brand-3: #2563eb;
  --line: rgba(75, 115, 170, .14);
  --shadow: 0 24px 60px rgba(26, 51, 90, 0.10);
  --scroll-thumb: rgba(15,138,232,.24);
}
* { box-sizing: border-box; }
html, html *, body, body * {
  -webkit-user-select: none !important;
  -moz-user-select: none !important;
  -ms-user-select: none !important;
  user-select: none !important;
}
html {
  overflow: hidden;
  scroll-behavior: smooth;
  scrollbar-gutter: auto;
}
*::selection { background: transparent !important; color: inherit !important; }
*::-moz-selection { background: transparent !important; color: inherit !important; }
body {
  margin: 0;
  height: 100vh;
  min-height: 0;
  overflow: hidden;
  padding-top: var(--header-h);
  padding-bottom: 86px;
  font-family: "Segoe UI", Inter, Roboto, Arial, sans-serif;
  background:
    radial-gradient(circle at 16% 16%, rgba(120,216,255,.15), transparent 0 20%),
    radial-gradient(circle at 84% 12%, rgba(47,155,255,.16), transparent 0 18%),
    radial-gradient(circle at 50% 100%, rgba(80,198,255,.08), transparent 0 24%),
    linear-gradient(180deg, var(--bg-2), var(--bg));
  color: var(--text);
  position: relative;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -2;
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}
[data-theme="dark"] body::before {
  background:
    radial-gradient(circle at 18% 16%, rgba(86,177,255,.18), transparent 0 18%),
    radial-gradient(circle at 82% 12%, rgba(56,189,248,.14), transparent 0 16%),
    radial-gradient(circle at 76% 74%, rgba(63,169,255,.12), transparent 0 20%),
    radial-gradient(circle at 24% 78%, rgba(72,120,255,.10), transparent 0 18%),
    linear-gradient(180deg, rgba(2,7,18,.10), rgba(2,7,18,.30));
}
[data-theme="dark"] body::after {
  opacity: .5;
  background-image:
    radial-gradient(1.3px 1.3px at 6% 18%, rgba(255,255,255,.98), transparent 60%),
    radial-gradient(1.1px 1.1px at 14% 74%, rgba(255,255,255,.72), transparent 60%),
    radial-gradient(1.4px 1.4px at 22% 44%, rgba(255,255,255,.78), transparent 60%),
    radial-gradient(1px 1px at 36% 28%, rgba(255,255,255,.62), transparent 60%),
    radial-gradient(1.5px 1.5px at 48% 12%, rgba(255,255,255,.92), transparent 60%),
    radial-gradient(1px 1px at 57% 64%, rgba(255,255,255,.72), transparent 60%),
    radial-gradient(1.2px 1.2px at 68% 24%, rgba(255,255,255,.8), transparent 60%),
    radial-gradient(1px 1px at 78% 42%, rgba(255,255,255,.68), transparent 60%),
    radial-gradient(1.4px 1.4px at 88% 18%, rgba(255,255,255,.86), transparent 60%),
    radial-gradient(1.1px 1.1px at 92% 78%, rgba(255,255,255,.64), transparent 60%),
    radial-gradient(1200px 520px at 50% -12%, rgba(70,150,255,.08), transparent 60%);
}
[data-theme="light"] body {
  background:
    radial-gradient(circle at 12% 10%, rgba(56,189,248,.18), transparent 0 18%),
    radial-gradient(circle at 88% 10%, rgba(37,99,235,.14), transparent 0 18%),
    radial-gradient(circle at 50% 0%, rgba(125,211,252,.15), transparent 0 22%),
    linear-gradient(180deg, #ffffff 0%, #f8fbff 18%, #f1f7ff 58%, #edf5ff 100%);
}
[data-theme="light"] body::before {
  background:
    linear-gradient(rgba(86,177,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(86,177,255,.06) 1px, transparent 1px),
    radial-gradient(circle at 18% 16%, rgba(56,189,248,.12), transparent 0 16%),
    radial-gradient(circle at 82% 10%, rgba(37,99,235,.10), transparent 0 16%);
  background-size: 34px 34px, 34px 34px, auto, auto;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.54), rgba(0,0,0,.24) 50%, transparent 84%);
}
[data-theme="light"] body::after {
  background:
    radial-gradient(circle at 50% -12%, rgba(56,189,248,.18), transparent 28%),
    radial-gradient(circle at 74% 22%, rgba(37,99,235,.10), transparent 18%),
    radial-gradient(circle at 10% 78%, rgba(14,165,233,.10), transparent 18%);
}
a, button { -webkit-tap-highlight-color: transparent; }
/* unified scrollbars */
.page-scroll,
.main-content,
.tech-sidebar {
  scrollbar-width: thin;
  scrollbar-color: transparent transparent;
  scrollbar-gutter: stable;
}
.page-scroll.is-scrolling,
.main-content.is-scrolling,
.tech-sidebar.is-scrolling {
  scrollbar-color: var(--scroll-thumb) transparent;
}
.page-scroll::-webkit-scrollbar,
.main-content::-webkit-scrollbar,
.tech-sidebar::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
.page-scroll::-webkit-scrollbar-thumb,
.main-content::-webkit-scrollbar-thumb,
.tech-sidebar::-webkit-scrollbar-thumb {
  background: transparent;
  border-radius: 999px;
  border: 2px solid transparent;
  background-clip: padding-box;
}
.page-scroll.is-scrolling::-webkit-scrollbar-thumb,
.main-content.is-scrolling::-webkit-scrollbar-thumb,
.tech-sidebar.is-scrolling::-webkit-scrollbar-thumb {
  background: var(--scroll-thumb);
}
.page-scroll::-webkit-scrollbar-track,
.main-content::-webkit-scrollbar-track,
.tech-sidebar::-webkit-scrollbar-track {
  background: rgba(148, 163, 184, 0.08);
}
.page-wrap { height: 100%; min-height: 0; display: flex; flex-direction: column; overflow: hidden; }
body:not(.technical-manual-page) .page-wrap > main { flex: 1 1 auto; min-height: 0; overflow-y: auto; overflow-x: hidden; scrollbar-gutter: stable; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: var(--header-h);
  backdrop-filter: blur(18px) saturate(135%);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 10px 30px rgba(2, 8, 24, .14);
}
[data-theme="light"] .site-header { background: rgba(250,252,255,.78); box-shadow: 0 10px 28px rgba(34, 72, 124, .08); }
.site-header .container { height: 100%; }
.navbar { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.brand-wrap { display: flex; align-items: center; gap: 22px; min-width: 0; }
.brand-link { display: flex; align-items: center; text-decoration: none; }
.logo-svg { width: 198px; height: auto; display: block; overflow: visible; }
.logo-aurora { display: block; }
.logo-solar { display: none; }
[data-theme="light"] .logo-aurora { display: none; }
[data-theme="light"] .logo-solar { display: block; }
.header-actions { display: flex; align-items: center; gap: 10px; }
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  transition: .22s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  line-height: 1;
  padding: 0;
}
.theme-toggle:hover {
  transform: translateY(-1px);
  border-color: rgba(56,189,248,.45);
  box-shadow: 0 0 0 4px rgba(56,189,248,.12);
}
.theme-toggle:focus-visible {
  outline: none;
  border-color: rgba(56,189,248,.55);
  box-shadow: 0 0 0 4px rgba(56,189,248,.14);
}
.site-header .nav-links { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; justify-content: flex-end; }
.site-header .nav-links a {
  text-decoration: none; color: var(--muted); font-weight: 600; padding: 10px 12px; border-radius: 999px; transition: .2s ease;
}
.site-header .nav-links a:hover, .site-header .nav-links a.active { color: var(--text); background: rgba(148,163,184,.10); box-shadow: inset 0 0 0 1px rgba(80,198,255,.14); }
.site-header .nav-links .btn-primary { color: #fff; background: linear-gradient(135deg, var(--brand-2), var(--brand)); }
.site-header .nav-links .btn-primary:hover { background: linear-gradient(135deg, var(--brand), var(--brand-3)); }
.hero { padding: 72px 0 54px; }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 34px; align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 999px; background: rgba(56,189,248,.11);
  color: var(--brand); font-weight: 700; font-size: 13px; border: 1px solid rgba(56,189,248,.22);
}
.hero h1 { font-size: clamp(42px, 6vw, 76px); line-height: 1.02; margin: 16px 0 10px; font-family: "Chakra Petch", sans-serif; letter-spacing: -0.03em; }
.hero h1 .line-2 { display:block; font-size: clamp(26px, 4vw, 42px); margin-top: 10px; color: var(--text); }
.hero p { margin: 0; font-size: 17px; color: var(--muted); max-width: none; line-height: 1.7; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 26px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 13px 20px; border-radius: 14px;
  font-weight: 700; text-decoration: none; transition: .2s ease; border: 1px solid transparent;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { color: #fff; background: linear-gradient(135deg, var(--brand-2), var(--brand), var(--brand-3)); box-shadow: 0 18px 40px rgba(26, 143, 232, .32), inset 0 1px 0 rgba(255,255,255,.18); }
.btn-secondary { color: var(--text); border-color: var(--line); background: linear-gradient(180deg, color-mix(in srgb, var(--panel) 92%, transparent), color-mix(in srgb, var(--panel-2) 92%, transparent)); }
.hero-notes { margin-top: 16px; display: flex; gap: 10px; flex-wrap: wrap; }
.badge { padding: 8px 12px; border-radius: 999px; border: 1px solid var(--line); background: rgba(148,163,184,.08); color: var(--muted); font-weight: 600; font-size: 13px; }

.doc-jump-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  color: #9fd8ff;
  background: rgba(80,150,255,0.14);
  border: 1px solid rgba(120,200,255,0.65);
  text-decoration: none;
  font-weight: 700;
  box-shadow: inset 0 0 6px rgba(120,200,255,0.15);
  transition: all .2s ease;
}
.doc-jump-link:hover {
  color: #d9f3ff;
  background: rgba(80,150,255,0.22);
  border-color: #8cd6ff;
  box-shadow: inset 0 0 8px rgba(120,200,255,0.25), 0 0 10px rgba(100,180,255,0.25);
}
.preview-panel { background: linear-gradient(180deg, rgba(10,20,39,.88), rgba(8,16,32,.76)); border: 1px solid rgba(90,180,255,.18); border-radius: 28px; padding: 22px; box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.04); }
[data-theme="light"] .preview-panel { background: linear-gradient(180deg, rgba(255,255,255,.94), rgba(247,251,255,.90)); border-color: rgba(56,189,248,.16); box-shadow: 0 22px 46px rgba(32, 72, 128, .10), inset 0 1px 0 rgba(255,255,255,.8); }
.preview-head { display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-size: 13px; }
.preview-body { margin-top: 18px; display: grid; gap: 14px; }
.metric-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.metric { background: rgba(148,163,184,.08); border: 1px solid var(--line); border-radius: 18px; padding: 18px; }
.metric strong { display: block; font: 700 28px/1.1 "Chakra Petch", sans-serif; margin-bottom: 8px; }
.stack-list { display: grid; gap: 10px; }
.stack-item { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 12px 14px; border-radius: 14px; background: rgba(148,163,184,.08); border: 1px solid var(--line); }
.stack-item span:last-child { color: var(--brand); font-weight: 700; }
.section { padding: 46px 0; }
.section-head { max-width: 680px; margin-bottom: 22px; }
.section-head h2 { margin: 0 0 10px; font: 700 clamp(30px, 4vw, 40px)/1.12 "Chakra Petch", sans-serif; }
.section-head p { margin: 0; color: var(--muted); line-height: 1.7; font-size: 17px; }
.grid-4, .grid-3, .grid-2 { display: grid; gap: 18px; }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card { background: linear-gradient(180deg, color-mix(in srgb, var(--panel) 92%, transparent), color-mix(in srgb, var(--panel-2) 90%, transparent)); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.05); transition: transform .24s ease, box-shadow .24s ease, border-color .24s ease; }
.card:hover { transform: translateY(-4px); border-color: rgba(95, 187, 255, .30); box-shadow: 0 30px 80px rgba(1, 6, 18, .46), 0 0 0 1px rgba(80,198,255,.06), inset 0 1px 0 rgba(255,255,255,.05); }
[data-theme="light"] .card,
[data-theme="light"] .step,
[data-theme="light"] .doc-item,
[data-theme="light"] .support-inline .support-chip,
[data-theme="light"] .badge {
  background: linear-gradient(180deg, rgba(255,255,255,.68), rgba(244,249,255,.52));
  border-color: rgba(96, 165, 250, .16);
  box-shadow:
    0 24px 56px rgba(24, 54, 98, .10),
    inset 0 1px 0 rgba(255,255,255,.95),
    inset 0 -1px 0 rgba(255,255,255,.34);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
}
[data-theme="light"] .card:hover,
[data-theme="light"] .step:hover,
[data-theme="light"] .doc-item:hover {
  border-color: rgba(59, 130, 246, .24);
  box-shadow:
    0 28px 64px rgba(24, 54, 98, .12),
    0 0 0 1px rgba(147, 197, 253, .20),
    inset 0 1px 0 rgba(255,255,255,.98),
    inset 0 -1px 0 rgba(255,255,255,.42);
}
[data-theme="light"] .site-header {
  background: rgba(252, 254, 255, .62);
  border-bottom-color: rgba(96, 165, 250, .14);
  box-shadow:
    0 14px 34px rgba(34, 72, 124, .08),
    inset 0 1px 0 rgba(255,255,255,.82);
  backdrop-filter: blur(22px) saturate(165%);
  -webkit-backdrop-filter: blur(22px) saturate(165%);
}
[data-theme="light"] .preview-panel,
[data-theme="light"] .site-footer,
[data-theme="light"] .doc-sidebar,
[data-theme="light"] .manual-toc,
[data-theme="light"] .manual-block,
[data-theme="light"] .manual-callout,
[data-theme="light"] .manual-card,
[data-theme="light"] .support-card,
[data-theme="light"] .download-card {
  background: linear-gradient(180deg, rgba(255,255,255,.70), rgba(243,248,255,.54));
  border-color: rgba(96, 165, 250, .16);
  box-shadow:
    0 24px 56px rgba(24, 54, 98, .10),
    inset 0 1px 0 rgba(255,255,255,.96),
    inset 0 -1px 0 rgba(255,255,255,.32);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
}
[data-theme="light"] .split-banner {
  background: linear-gradient(135deg, rgba(255,255,255,.92), rgba(234,245,255,.92));
  border-color: rgba(56,189,248,.22);
}
[data-theme="light"] .icon-pill,
[data-theme="light"] .step-no {
  background: linear-gradient(135deg, rgba(56,189,248,.18), rgba(37,99,235,.10));
}
[data-theme="light"] .hero h1,
[data-theme="light"] .section-head h2 {
  text-shadow: 0 0 18px rgba(56,189,248,.08);
}
[data-theme="light"] .card:hover,
[data-theme="light"] .doc-item:hover {
  box-shadow: 0 24px 52px rgba(24, 54, 98, .12), 0 0 0 1px rgba(56,189,248,.08), inset 0 1px 0 rgba(255,255,255,.85);
  border-color: rgba(15,138,232,.24);
}

.card h3, .card h4 { margin: 0 0 10px; font-size: 20px; }
.card p { margin: 0; color: var(--muted); line-height: 1.75; }
.icon-pill { width: 44px; height: 44px; display: inline-grid; place-items: center; border-radius: 14px; background: rgba(56,189,248,.12); color: var(--brand); margin-bottom: 14px; font-size: 22px; }

.feature-icon{width:26px;height:26px;display:block;overflow:visible;filter:drop-shadow(0 0 10px rgba(111,211,255,.18));}
[data-theme="light"] .feature-icon{filter:none;}
.icon-pill{overflow:hidden;}

.kicker { color: var(--brand); font-weight: 700; font-size: 13px; letter-spacing: .04em; text-transform: uppercase; }
.arch-shell { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: stretch; }
.arch-diagram { display: grid; gap: 12px; }
.layer { border-radius: 18px; padding: 18px 20px; border: 1px solid var(--line); background: linear-gradient(135deg, rgba(80,198,255,.10), rgba(148,163,184,.08)); font-weight: 700; box-shadow: inset 0 1px 0 rgba(255,255,255,.04); }
.layer small { display: block; margin-top: 6px; color: var(--muted); font-weight: 600; }
.arrow { text-align: center; color: var(--brand); font-size: 22px; }
.code-block { background: linear-gradient(180deg, #09111f, #07101c); color: #dbeafe; border-radius: 22px; padding: 22px; border: 1px solid rgba(56,189,248,.15); box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.04); overflow-x: auto; }
[data-theme="light"] .code-block { background: #0f172a; color: #e5eefb; }
pre { margin: 0; font: 14px/1.65 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.step-list { display: grid; gap: 14px; }
.step { display: grid; grid-template-columns: 52px 1fr; gap: 16px; align-items: start; padding: 18px; border-radius: 18px; border: 1px solid var(--line); background: linear-gradient(180deg, rgba(148,163,184,.09), rgba(148,163,184,.05)); box-shadow: inset 0 1px 0 rgba(255,255,255,.04); }
.step-no { width: 52px; height: 52px; border-radius: 16px; display: grid; place-items: center; background: rgba(56,189,248,.14); color: var(--brand); font: 700 24px/1 "Chakra Petch", sans-serif; }
.split-banner { display: grid; grid-template-columns: 1.08fr .92fr; gap: 18px; align-items: center; padding: 28px; border-radius: 28px; background: linear-gradient(135deg, rgba(20,120,215,.24), rgba(9,22,46,.14)); border: 1px solid rgba(56,189,248,.20); box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.05); }
.data-list { display: grid; gap: 14px; }
.data-row { display: flex; justify-content: space-between; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.data-row:last-child { border-bottom: none; }
.note-box { padding: 18px 20px; border-radius: 18px; border: 1px dashed rgba(56,189,248,.35); background: linear-gradient(180deg, rgba(56,189,248,.08), rgba(56,189,248,.04)); color: var(--muted); line-height: 1.7; }
.doc-list { display: grid; gap: 12px; }
.doc-item { display: flex; gap: 14px; align-items: start; justify-content: space-between; padding: 18px; border-radius: 18px; background: linear-gradient(180deg, rgba(148,163,184,.09), rgba(148,163,184,.05)); border: 1px solid var(--line); text-decoration: none; color: inherit; transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease; }
.doc-item:hover { transform: translateY(-3px); border-color: rgba(95, 187, 255, .28); box-shadow: 0 18px 40px rgba(1, 6, 18, .18); }
.doc-item strong { display: block; margin-bottom: 4px; }
.doc-item small { color: var(--muted); line-height: 1.65; }
.footer {
  flex-shrink: 0;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: 86px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  color: var(--muted);
  background: color-mix(in srgb, var(--panel-2) 84%, transparent);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(18px) saturate(135%);
  box-shadow: 0 -10px 28px rgba(1, 6, 18, .12);
  z-index: 1000;
}
[data-theme="light"] .footer {
  background: rgba(249,252,255,.88);
}
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 20px; }
.footer h4 { margin: 0 0 10px; color: var(--text); }
.list-plain { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.list-plain a { text-decoration: none; color: var(--muted); }
.list-plain a:hover { color: var(--text); }
.footer-bottom { text-align:center; margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 14px; }
.centered-hero { padding: 70px 0 30px; }
.centered-hero h1 { margin: 12px 0 14px; font: 700 clamp(34px, 5vw, 56px)/1.08 "Chakra Petch", sans-serif; }
.centered-hero p { color: var(--muted); max-width: 860px; margin: 0; line-height: 1.75; }
.notice-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 16px; }
.table-like { display: grid; gap: 12px; }
.table-row { display: grid; grid-template-columns: 1.1fr .7fr .8fr; gap: 14px; padding: 16px 18px; border-radius: 18px; background: rgba(148,163,184,.08); border: 1px solid var(--line); }
.mini { font-size: 13px; color: var(--muted); }
.support-inline { display:flex; gap:18px; flex-wrap:wrap; margin-top:18px; }
.support-inline .support-chip { padding: 10px 14px; border-radius: 14px; border: 1px solid var(--line); background: rgba(148,163,184,.08); }
@media (max-width: 980px) {
  .hero-grid, .arch-shell, .split-banner, .footer-grid, .grid-4, .grid-3, .grid-2, .table-row { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .logo-svg { width: 170px; }
  .hero { padding-top: 56px; }
  .brand-wrap { gap: 16px; }
}


.compact-hero{padding:60px 0 40px;}
.compact-head{max-width:560px;margin-bottom:18px;}
.compact-head p{font-size:16px;line-height:1.65;}
.compact-grid{gap:16px;}
.compact-card{padding:20px;}
.compact-card p{line-height:1.6;}
.compact-card h3{margin-bottom:8px;}
.preview-panel-simple{padding:18px 18px 16px;max-width:440px;justify-self:end;}
.compact-arch{max-width:720px;}
.compact-arch .layer{padding:16px 18px;}
.compact-banner{padding:24px;}
.compact-banner .step{padding:14px 16px;}
.compact-banner .step-no{width:44px;height:44px;font-size:20px;border-radius:14px;}
.compact-page-hero{padding:56px 0 18px;}
.compact-page-hero h1{margin:0 0 10px;}
.compact-page-hero p{max-width:520px;line-height:1.65;}
.compact-section{padding-top:28px;}
@media (max-width: 980px){
  .preview-panel-simple{max-width:none;justify-self:stretch;}
}


/* V1.3 cleanup */
.hero-grid{grid-template-columns:minmax(0,780px);justify-content:start;}
.compact-hero .hero-grid{align-items:start;}
.compact-hero h1{max-width:760px;}
.compact-hero p{max-width:nono;}
@media (max-width:980px){.hero-grid{grid-template-columns:1fr;}}


.manual-layout{
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap:20px;
  align-items:start;
}
.manual-stack{
  display:grid;
  gap:20px;
}
.manual-title{
  font-size:28px !important;
  margin:0 0 12px !important;
  font-family:"Chakra Petch",sans-serif;
}
@media (max-width: 960px){
  .manual-layout{
    grid-template-columns:1fr;
  }
}


/* v1.9 docs refinement */
.docs-home-grid .card,
.manual-overview-grid .card{height:100%;}
.docs-intro{margin-top:4px; color:var(--muted); line-height:1.7;}
.manual-overview-grid{display:grid; grid-template-columns:1fr 1fr; gap:18px; align-items:start;}
.manual-link-grid{margin-top:4px;}
.manual-title{font:700 clamp(26px,3vw,34px)/1.12 "Chakra Petch", sans-serif; margin:0 0 12px;}
.mini-points{display:grid; gap:12px; margin-top:18px;}
@media (max-width:980px){
  .manual-overview-grid{grid-template-columns:1fr;}
}

.footer-stack{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;text-align:center;line-height:1.25;}
.footer-brand{font:700 14px/1.1 "Chakra Petch", sans-serif;color:var(--text);letter-spacing:.02em;}
.footer-copy{font-size:12px;color:var(--muted);}
@media (max-width: 980px) {
  body { padding-bottom: 82px; }
  .footer { height: 82px; }
}


/* v2.6 technical manual */

.technical-manual-page{padding-top:var(--header-h);padding-bottom:86px;overflow:hidden;height:100vh;--tech-sidebar-w:248px;--tech-gap:16px;--tech-left:max(20px, calc((100vw - var(--max)) / 2));}
html:has(body.technical-manual-page){overflow:hidden;}
body.technical-manual-page{overflow:hidden;}
.tech-shell{display:block;height:calc(100vh - var(--header-h) - 86px);overflow:hidden;}
.tech-sidebar{position:fixed;top:var(--header-h);left:var(--tech-left);bottom:86px;width:var(--tech-sidebar-w);padding:18px 0;overflow-y:auto;background:color-mix(in srgb,var(--panel-2) 90%,transparent);border-right:1px solid var(--line);backdrop-filter:blur(14px);}
[data-theme="light"] .tech-sidebar{background:rgba(249,252,255,.92);}
.tech-sidebar .sidebar-header{padding:0 18px 16px;margin-bottom:12px;border-bottom:1px solid var(--line);}
.tech-sidebar .brand-group{display:flex;align-items:center;justify-content:space-between;gap:10px;}
.tech-sidebar .sidebar-logo{width:172px;height:auto;display:block;}
.tech-sidebar .nav-links{list-style:none;padding:0 10px;margin:0;display:grid;gap:6px;}
.tech-sidebar .nav-links a{display:block;padding:11px 12px;border-radius:14px;color:var(--muted);text-decoration:none;font-weight:600;border:1px solid transparent;transition:.2s ease;}
.tech-sidebar .nav-links a:hover,.tech-sidebar .nav-links a.active{color:var(--text);background:rgba(56,189,248,.1);border-color:rgba(56,189,248,.16);}
.tech-main{margin-left:calc(var(--tech-left) + var(--tech-sidebar-w) + var(--tech-gap));padding:22px var(--tech-left) 18px 0;height:calc(100vh - var(--header-h) - 86px);overflow:hidden;}
.tech-main .main-content{width:100%;max-width:calc(var(--max) - var(--tech-sidebar-w) - var(--tech-gap));height:100%;margin:0;overflow-y:auto;overflow-x:hidden;padding-right:8px;scrollbar-gutter:stable;scroll-behavior:smooth;}
.technical-manual-page section{background:var(--panel);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);padding:30px;margin-bottom:24px;}
.technical-manual-page h1{margin:0 0 18px;padding-bottom:12px;border-bottom:1px solid var(--line);font:700 clamp(30px,4vw,46px)/1.12 "Chakra Petch",sans-serif;color:var(--text);}
.technical-manual-page h2{margin:34px 0 16px;color:var(--brand);font:700 28px/1.2 "Chakra Petch",sans-serif;border-bottom:1px solid var(--line);padding-bottom:8px;}
.technical-manual-page h3{margin:26px 0 12px;color:var(--brand-2);font-size:20px;}
.technical-manual-page p,.technical-manual-page li,.technical-manual-page td,.technical-manual-page th{color:var(--text);}
.technical-manual-page p,.technical-manual-page li{line-height:1.75;}
.technical-manual-page .toc,.technical-manual-page .table-container,.technical-manual-page .table-responsive{width:100%;overflow-x:auto;}
.technical-manual-page .toc{background:rgba(148,163,184,.08);border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:18px;padding:18px 20px;}
.technical-manual-page .toc a{color:var(--muted);text-decoration:none;}
.technical-manual-page .toc a:hover{color:var(--text);text-decoration:underline;}
.technical-manual-page table{width:100%;border-collapse:collapse;min-width:620px;}
.technical-manual-page th,.technical-manual-page td{padding:12px 14px;border:1px solid var(--line);text-align:left;vertical-align:top;}
.technical-manual-page th{background:rgba(56,189,248,.08);color:var(--brand);}
.technical-manual-page tr:nth-child(even){background:rgba(148,163,184,.05);}
.technical-manual-page pre,.technical-manual-page .logic-box,.technical-manual-page .ascii-art{background:#09111d;color:#dbeafe;border:1px solid rgba(148,163,184,.16);border-radius:18px;padding:18px 22px;overflow:auto;line-height:1.6;}
.technical-manual-page .ascii-art{white-space:pre;font:500 14px/1.55 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:0;tab-size:4;}
@media (max-width:900px){.technical-manual-page .ascii-art{font-size:12px;}}
[data-theme="light"] .technical-manual-page pre,[data-theme="light"] .technical-manual-page .logic-box,[data-theme="light"] .technical-manual-page .ascii-art{background:linear-gradient(180deg,#f8fbff,#eef6ff);color:#15314f;border-color:rgba(2,132,199,.14);}
.technical-manual-page code{font-family:Consolas,Monaco,monospace;}
.technical-manual-page p code,.technical-manual-page li code,.technical-manual-page td code{background:rgba(56,189,248,.1);color:var(--brand-2);padding:2px 6px;border-radius:8px;border:1px solid rgba(56,189,248,.15);}
.technical-manual-page .alert,.technical-manual-page .note{padding:16px 18px;margin:18px 0;border-radius:16px;border-left:4px solid var(--brand);background:rgba(56,189,248,.08);color:var(--text);}

.technical-manual-page .chapter-list{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:18px;}
.technical-manual-page .chapter-list li{list-style:none;}
.technical-manual-page .chapter-list li{background:rgba(148,163,184,.08)!important;border:1px solid var(--line)!important;border-radius:18px!important;}
.technical-manual-page .chapter-list a span:last-child{color:var(--muted)!important;}
@media (max-width: 1024px){
  .technical-manual-page{overflow:auto;height:auto;}
  html:has(body.technical-manual-page),body.technical-manual-page{overflow:auto;}
  .tech-shell{height:auto;overflow:visible;}
  .tech-sidebar{position:static;width:auto;height:auto;max-height:none;border-right:none;border-bottom:1px solid var(--line);}
  .tech-main{margin-left:0;height:auto;overflow:visible;padding:18px 14px 18px;}
  .tech-main .main-content{height:auto;overflow:visible;width:100%;max-width:none;}
  .technical-manual-page section{padding:22px;}
}

/* V2.7 manual readability + CTA */
.technical-manual-page .chapter-list li{background:linear-gradient(180deg, rgba(17,32,58,.92), rgba(22,39,68,.92))!important;border:1px solid rgba(111,177,255,.16)!important;border-radius:20px!important;box-shadow:none!important;}
.technical-manual-page .chapter-list a span:first-child{color:#6fb1ff!important;font-weight:700;text-shadow:none!important;}
.technical-manual-page .chapter-list a span:last-child{color:#b6c3d9!important;}
.technical-manual-page td code{background:rgba(56,189,248,.12);color:#8fd0ff;border-color:rgba(56,189,248,.16);}
[data-theme="light"] .technical-manual-page .chapter-list li{background:linear-gradient(180deg, rgba(255,255,255,.98), rgba(245,250,255,.94))!important;border:1px solid rgba(2,132,199,.14)!important;box-shadow:0 14px 30px rgba(15,23,42,.06)!important;}
[data-theme="light"] .technical-manual-page .chapter-list a span:first-child{color:#0b74c9!important;}
[data-theme="light"] .technical-manual-page .chapter-list a span:last-child{color:#5e7290!important;}
.technical-manual-page a[href="./Download.html"][style*="min-width:220px"]{transition:transform .22s ease, box-shadow .22s ease;}
.technical-manual-page a[href="./Download.html"][style*="min-width:220px"]:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(70,150,255,.52)!important;}


/* V2.8 download card alignment */
.download-card-grid{align-items:stretch;}
.download-card{display:flex;flex-direction:column;height:100%;min-height:190px;}
.download-card-body{display:flex;flex-direction:column;gap:8px;flex:1 1 auto;}
.download-card-title{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;}
.download-card-meta{margin-top:2px;font-size:13px;color:#9ecbff;}
[data-theme="light"] .download-card-meta{color:#0b74c9;}
.download-card-note{font-size:12px;color:#9aa7bd;}
[data-theme="light"] .download-card-note{color:#617594;}
.download-card-actions{margin-top:auto;padding-top:18px;}
.download-card-actions .btn{min-width:154px; box-shadow: 0 14px 28px rgba(39, 149, 255, .28), inset 0 1px 0 rgba(255,255,255,.16);}


/* V2.9 dark + light visual upgrade */
.eyebrow, .badge, .support-inline .support-chip { backdrop-filter: blur(10px); }
.hero h1, .section-head h2, .manual-title { text-wrap: balance; }
.theme-toggle { box-shadow: inset 0 1px 0 rgba(255,255,255,.08); }
[data-theme="light"] .theme-toggle { box-shadow: inset 0 1px 0 rgba(255,255,255,.95), 0 10px 22px rgba(24,54,98,.08); }


/* ===== V2.9 Tech Boost ===== */
:root {
  --brand-2: #8be4ff;
  --brand-3: #5b8cff;
  --glow-soft: 0 0 0 1px rgba(110,210,255,.10), 0 0 28px rgba(61,196,255,.08);
  --glow-strong: 0 0 0 1px rgba(110,210,255,.18), 0 0 42px rgba(61,196,255,.18), 0 18px 48px rgba(2,10,28,.38);
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

body::before {
  background:
    radial-gradient(circle at 18% 12%, rgba(93, 163, 255, .18) 0, rgba(93, 163, 255, 0) 28%),
    radial-gradient(circle at 82% 18%, rgba(44, 222, 255, .14) 0, rgba(44, 222, 255, 0) 24%),
    radial-gradient(circle at 50% 68%, rgba(72, 109, 255, .10) 0, rgba(72, 109, 255, 0) 32%),
    linear-gradient(180deg, rgba(255,255,255,.015), rgba(255,255,255,0));
  opacity: .95;
}

body::after {
  background-image:
    radial-gradient(2px 2px at 8% 18%, rgba(255,255,255,.55), transparent 60%),
    radial-gradient(1.5px 1.5px at 22% 34%, rgba(255,255,255,.38), transparent 60%),
    radial-gradient(2px 2px at 34% 12%, rgba(255,255,255,.52), transparent 60%),
    radial-gradient(1.5px 1.5px at 48% 46%, rgba(255,255,255,.30), transparent 60%),
    radial-gradient(2px 2px at 62% 26%, rgba(255,255,255,.48), transparent 60%),
    radial-gradient(1.5px 1.5px at 78% 42%, rgba(255,255,255,.34), transparent 60%),
    radial-gradient(2px 2px at 88% 20%, rgba(255,255,255,.42), transparent 60%),
    linear-gradient(rgba(115,161,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(115,161,255,.05) 1px, transparent 1px);
  background-size: auto, auto, auto, auto, auto, auto, auto, 72px 72px, 72px 72px;
  opacity: .38;
  mix-blend-mode: screen;
}

[data-theme="light"] body::before {
  background:
    radial-gradient(circle at 16% 10%, rgba(59,130,246,.16) 0, rgba(59,130,246,0) 30%),
    radial-gradient(circle at 84% 14%, rgba(6,182,212,.13) 0, rgba(6,182,212,0) 24%),
    radial-gradient(circle at 50% 72%, rgba(37,99,235,.08) 0, rgba(37,99,235,0) 34%),
    linear-gradient(180deg, rgba(255,255,255,.55), rgba(255,255,255,0));
}

[data-theme="light"] body::after {
  background-image:
    radial-gradient(2px 2px at 10% 16%, rgba(96,165,250,.24), transparent 60%),
    radial-gradient(1.5px 1.5px at 26% 38%, rgba(56,189,248,.22), transparent 60%),
    radial-gradient(2px 2px at 42% 18%, rgba(59,130,246,.20), transparent 60%),
    radial-gradient(1.5px 1.5px at 60% 40%, rgba(14,165,233,.18), transparent 60%),
    radial-gradient(2px 2px at 76% 22%, rgba(37,99,235,.22), transparent 60%),
    radial-gradient(1.5px 1.5px at 90% 32%, rgba(14,165,233,.18), transparent 60%),
    linear-gradient(rgba(59,130,246,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,.045) 1px, transparent 1px);
  background-size: auto, auto, auto, auto, auto, auto, 72px 72px, 72px 72px;
  opacity: .55;
  mix-blend-mode: normal;
}

.site-header {
  background: color-mix(in srgb, var(--panel-2) 82%, transparent);
  border-bottom-color: rgba(98, 168, 255, .16);
  box-shadow: 0 10px 28px rgba(1, 8, 24, .22);
}

[data-theme="light"] .site-header {
  background: rgba(250,253,255,.82);
  border-bottom-color: rgba(59,130,246,.14);
  box-shadow: 0 12px 30px rgba(34, 76, 140, .08);
}

.logo-svg { filter: drop-shadow(0 0 14px rgba(80,198,255,.15)); }

.hero h1,
.centered-hero h1,
.section-head h2,
.download-card-title,
.card h3,
.card h4 {
  letter-spacing: .01em;
  text-shadow: 0 0 24px rgba(80,198,255,.10);
}

[data-theme="light"] .hero h1,
[data-theme="light"] .centered-hero h1,
[data-theme="light"] .section-head h2,
[data-theme="light"] .download-card-title,
[data-theme="light"] .card h3,
[data-theme="light"] .card h4 {
  text-shadow: 0 0 18px rgba(56,189,248,.08);
}

.card,
.preview-panel,
.split-banner,
.step,
.doc-item,
.metric,
.table-row,
.support-inline .support-chip,
.badge {
  position: relative;
  overflow: hidden;
}

.card::before,
.preview-panel::before,
.split-banner::before,
.doc-item::before,
.step::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(139,228,255,.10), rgba(91,140,255,0) 40%, rgba(255,255,255,.03) 100%);
  opacity: .75;
  pointer-events: none;
}

[data-theme="light"] .card::before,
[data-theme="light"] .preview-panel::before,
[data-theme="light"] .split-banner::before,
[data-theme="light"] .doc-item::before,
[data-theme="light"] .step::before {
  background: linear-gradient(135deg, rgba(96,165,250,.12), rgba(59,130,246,0) 42%, rgba(255,255,255,.52) 100%);
}

.card,
.preview-panel,
.split-banner,
.step,
.doc-item,
.metric,
.table-row {
  border-color: rgba(108, 177, 255, .18);
  box-shadow: var(--shadow), var(--glow-soft), inset 0 1px 0 rgba(255,255,255,.06);
}

.card:hover,
.doc-item:hover,
.preview-panel:hover,
.split-banner:hover {
  border-color: rgba(115, 198, 255, .34);
  box-shadow: var(--glow-strong), inset 0 1px 0 rgba(255,255,255,.08);
}

[data-theme="light"] .card,
[data-theme="light"] .preview-panel,
[data-theme="light"] .split-banner,
[data-theme="light"] .step,
[data-theme="light"] .doc-item,
[data-theme="light"] .metric,
[data-theme="light"] .table-row {
  border-color: rgba(96,165,250,.18);
  box-shadow: 0 18px 40px rgba(24,54,98,.08), 0 0 0 1px rgba(59,130,246,.04), 0 0 24px rgba(56,189,248,.06), inset 0 1px 0 rgba(255,255,255,.88);
}

[data-theme="light"] .card:hover,
[data-theme="light"] .doc-item:hover,
[data-theme="light"] .preview-panel:hover,
[data-theme="light"] .split-banner:hover {
  border-color: rgba(59,130,246,.30);
  box-shadow: 0 26px 58px rgba(24,54,98,.13), 0 0 0 1px rgba(59,130,246,.08), 0 0 28px rgba(56,189,248,.10), inset 0 1px 0 rgba(255,255,255,.95);
}

.btn,
.theme-toggle {
  position: relative;
  overflow: hidden;
}

.btn::before,
.theme-toggle::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 10%, rgba(255,255,255,.26) 46%, transparent 82%);
  transform: translateX(-120%);
  transition: transform .55s ease;
  pointer-events: none;
}

.btn:hover::before,
.theme-toggle:hover::before { transform: translateX(120%); }

.btn-primary {
  background: linear-gradient(135deg, #47a7ff, #76d2ff 50%, #6e8fff 100%);
  border-color: rgba(144, 220, 255, .34);
  box-shadow: 0 12px 28px rgba(42, 134, 255, .32), 0 0 22px rgba(83, 205, 255, .16);
}

.btn-primary:hover {
  box-shadow: 0 18px 36px rgba(42, 134, 255, .40), 0 0 32px rgba(83, 205, 255, .24);
}

.btn-secondary,
.theme-toggle {
  box-shadow: 0 8px 18px rgba(1,8,24,.12), inset 0 1px 0 rgba(255,255,255,.08);
}

.theme-toggle {
  border-color: rgba(108,177,255,.24);
  background: linear-gradient(180deg, rgba(20,33,63,.82), rgba(8,18,38,.72));
}

[data-theme="light"] .theme-toggle {
  background: linear-gradient(180deg, rgba(255,255,255,.94), rgba(240,248,255,.92));
  border-color: rgba(59,130,246,.14);
}

.badge,
.support-inline .support-chip,
.icon-pill,
.step-no {
  box-shadow: inset 0 1px 0 rgba(255,255,255,.08), 0 0 18px rgba(80,198,255,.08);
}

.icon-pill,
.step-no {
  background: linear-gradient(135deg, rgba(81,192,255,.20), rgba(91,140,255,.14));
}

[data-theme="light"] .icon-pill,
[data-theme="light"] .step-no {
  background: linear-gradient(135deg, rgba(96,165,250,.22), rgba(56,189,248,.16));
}

.download-card-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.footer {
  border-top-color: rgba(108,177,255,.18);
  box-shadow: 0 -10px 24px rgba(1,8,24,.16), 0 0 30px rgba(61,196,255,.05);
}

[data-theme="light"] .footer {
  box-shadow: 0 -10px 24px rgba(34,76,140,.06), 0 0 24px rgba(56,189,248,.04);
}

@media (prefers-reduced-motion: reduce) {
  .btn::before,
  .theme-toggle::before,
  .card,
  .doc-item,
  .preview-panel,
  .split-banner { transition: none; }
}


/* BUG FIX: hero support / badges / buttons stacking */
.support-inline,
.notice-row,
.hero-actions {
  position: relative;
  z-index: 2;
}

.support-inline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 14px;
  max-width: 100%;
  margin-top: 18px;
  margin-bottom: 18px;
}

.support-inline .support-chip {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  width: max-content;
  max-width: 100%;
  flex: 0 1 auto;
  white-space: nowrap;
  line-height: 1.2;
  padding: 10px 18px;
}

.notice-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  margin-top: 0;
  margin-bottom: 22px;
}

.hero-actions {
  margin-top: 0;
  gap: 12px;
}

@media (max-width: 640px) {
  .support-inline .support-chip {
    white-space: normal;
  }
}


/* === V3.0.1 visual adjustment: finer starfield + clearer frosted glass + no text-select cursor in cards === */
:root {
  --glow-soft: 0 0 24px rgba(72, 184, 255, .08);
  --glow-strong: 0 28px 68px rgba(1, 8, 24, .46), 0 0 28px rgba(72, 184, 255, .12);
}

body {
  background:
    linear-gradient(180deg, #07111f 0%, #040a14 48%, #03070f 100%);
}

[data-theme="dark"] body::before {
  background:
    radial-gradient(1.1px 1.1px at 4% 16%, rgba(255,255,255,.72), transparent 64%),
    radial-gradient(1.4px 1.4px at 8% 42%, rgba(255,255,255,.82), transparent 64%),
    radial-gradient(1.8px 1.8px at 12% 70%, rgba(255,255,255,.88), transparent 64%),
    radial-gradient(2.4px 2.4px at 18% 24%, rgba(255,255,255,.96), transparent 66%),
    radial-gradient(1.2px 1.2px at 22% 54%, rgba(255,255,255,.72), transparent 64%),
    radial-gradient(1.7px 1.7px at 28% 12%, rgba(255,255,255,.82), transparent 64%),
    radial-gradient(2.1px 2.1px at 32% 38%, rgba(255,255,255,.94), transparent 66%),
    radial-gradient(1.1px 1.1px at 36% 72%, rgba(255,255,255,.68), transparent 64%),
    radial-gradient(1.5px 1.5px at 42% 20%, rgba(255,255,255,.80), transparent 64%),
    radial-gradient(2.3px 2.3px at 48% 60%, rgba(255,255,255,.92), transparent 66%),
    radial-gradient(1.2px 1.2px at 54% 30%, rgba(255,255,255,.72), transparent 64%),
    radial-gradient(1.8px 1.8px at 58% 82%, rgba(255,255,255,.86), transparent 64%),
    radial-gradient(2.5px 2.5px at 64% 46%, rgba(255,255,255,.98), transparent 66%),
    radial-gradient(1.3px 1.3px at 70% 14%, rgba(255,255,255,.76), transparent 64%),
    radial-gradient(1.9px 1.9px at 74% 66%, rgba(255,255,255,.86), transparent 64%),
    radial-gradient(2.2px 2.2px at 80% 28%, rgba(255,255,255,.94), transparent 66%),
    radial-gradient(1.4px 1.4px at 84% 78%, rgba(255,255,255,.78), transparent 64%),
    radial-gradient(1.7px 1.7px at 90% 18%, rgba(255,255,255,.86), transparent 64%),
    radial-gradient(2.4px 2.4px at 94% 58%, rgba(255,255,255,.96), transparent 66%),
    radial-gradient(1px 1px at 14% 48%, rgba(255,255,255,.52), transparent 62%),
    radial-gradient(1px 1px at 38% 10%, rgba(255,255,255,.46), transparent 62%),
    radial-gradient(1px 1px at 60% 58%, rgba(255,255,255,.50), transparent 62%),
    radial-gradient(1px 1px at 74% 86%, rgba(255,255,255,.42), transparent 62%),
    radial-gradient(1px 1px at 86% 56%, rgba(255,255,255,.44), transparent 62%);
  opacity: .92;
  background-repeat: no-repeat;
}

[data-theme="dark"] body::after {
  background:
    radial-gradient(1px 1px at 6% 26%, rgba(255,255,255,.40), transparent 62%),
    radial-gradient(1px 1px at 17% 82%, rgba(255,255,255,.34), transparent 62%),
    radial-gradient(1px 1px at 27% 64%, rgba(255,255,255,.36), transparent 62%),
    radial-gradient(1px 1px at 41% 44%, rgba(255,255,255,.32), transparent 62%),
    radial-gradient(1px 1px at 56% 14%, rgba(255,255,255,.36), transparent 62%),
    radial-gradient(1px 1px at 68% 74%, rgba(255,255,255,.30), transparent 62%),
    radial-gradient(1px 1px at 78% 50%, rgba(255,255,255,.34), transparent 62%),
    radial-gradient(1px 1px at 88% 88%, rgba(255,255,255,.28), transparent 62%);
  opacity: .62;
  background-repeat: no-repeat;
}

[data-theme="light"] body {
  background:
    radial-gradient(720px 360px at 14% 8%, rgba(56, 189, 248, .18), transparent 56%),
    radial-gradient(680px 320px at 82% 12%, rgba(96, 165, 250, .13), transparent 54%),
    radial-gradient(980px 460px at 50% 100%, rgba(186, 230, 253, .26), transparent 58%),
    linear-gradient(180deg, #ffffff 0%, #f8fbff 24%, #eef6ff 70%, #ebf3ff 100%);
}

[data-theme="light"] body::before {
  background:
    linear-gradient(rgba(86,177,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(86,177,255,.035) 1px, transparent 1px),
    radial-gradient(560px 240px at 18% 12%, rgba(255,255,255,.76), transparent 60%),
    radial-gradient(540px 240px at 82% 10%, rgba(255,255,255,.66), transparent 62%);
  background-size: 46px 46px, 46px 46px, auto, auto;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.66), rgba(0,0,0,.28) 56%, transparent 88%);
}

[data-theme="light"] body::after {
  background:
    radial-gradient(580px 220px at 50% 0%, rgba(255,255,255,.92), transparent 64%),
    radial-gradient(circle at 18% 16%, rgba(56,189,248,.10), transparent 18%),
    radial-gradient(circle at 80% 18%, rgba(59,130,246,.08), transparent 18%),
    radial-gradient(circle at 50% 78%, rgba(125,211,252,.12), transparent 20%);
}

[data-theme="light"] .card,
[data-theme="light"] .preview-panel,
[data-theme="light"] .split-banner,
[data-theme="light"] .step,
[data-theme="light"] .doc-item,
[data-theme="light"] .metric,
[data-theme="light"] .table-row {
  background: rgba(255,255,255,.58);
  backdrop-filter: blur(22px) saturate(150%);
  -webkit-backdrop-filter: blur(22px) saturate(150%);
  border-color: rgba(255,255,255,.70);
  box-shadow:
    0 24px 52px rgba(24,54,98,.11),
    0 0 0 1px rgba(59,130,246,.05),
    inset 0 1px 0 rgba(255,255,255,.98),
    inset 0 -24px 36px rgba(191, 225, 255, .22);
}

[data-theme="light"] .card::before,
[data-theme="light"] .preview-panel::before,
[data-theme="light"] .split-banner::before,
[data-theme="light"] .doc-item::before,
[data-theme="light"] .step::before {
  background: linear-gradient(135deg, rgba(255,255,255,.60), rgba(96,165,250,.10) 42%, rgba(255,255,255,.24) 100%);
}

[data-theme="light"] .card:hover,
[data-theme="light"] .doc-item:hover,
[data-theme="light"] .preview-panel:hover,
[data-theme="light"] .split-banner:hover {
  box-shadow:
    0 30px 64px rgba(24,54,98,.14),
    0 0 0 1px rgba(59,130,246,.08),
    inset 0 1px 0 rgba(255,255,255,1),
    inset 0 -24px 40px rgba(191, 225, 255, .26);
}

[data-theme="light"] .theme-toggle,
[data-theme="light"] .btn-secondary {
  background: rgba(255,255,255,.64);
  backdrop-filter: blur(18px) saturate(145%);
  -webkit-backdrop-filter: blur(18px) saturate(145%);
  border-color: rgba(255,255,255,.74);
}

[data-theme="light"] .site-header {
  background: rgba(250,253,255,.58);
  backdrop-filter: blur(22px) saturate(145%);
  -webkit-backdrop-filter: blur(22px) saturate(145%);
}

/* more stable hero support chips */
.support-inline {
  row-gap: 14px;
}
.support-inline .support-chip {
  min-height: 46px;
}

/* download card text should feel static, not selectable */
.download-card-body,
.download-card-body * {
  user-select: none;
  -webkit-user-select: none;
  cursor: default;
}


/* V3.0.2 fix: prevent text selection on UI cards */
.card,
.card *,
.doc-item,
.doc-item *,
.step,
.step *,
.metric,
.metric *,
.stack-item,
.stack-item *,
.icon-pill,
.badge,
.support-chip,
.download-card,
.download-card * {
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}

.card,
.doc-item,
.step,
.metric,
.stack-item,
.icon-pill,
.badge,
.support-chip,
.download-card {
  cursor: default;
}


[data-theme="light"] .btn-secondary,
[data-theme="light"] .theme-toggle,
[data-theme="light"] .nav-links a.active:not(.btn-primary),
[data-theme="light"] .nav-links a:hover:not(.btn-primary) {
  background: linear-gradient(180deg, rgba(255,255,255,.72), rgba(243,248,255,.54));
  border-color: rgba(96, 165, 250, .16);
  box-shadow: 0 14px 30px rgba(24, 54, 98, .08), inset 0 1px 0 rgba(255,255,255,.96);
  backdrop-filter: blur(16px) saturate(145%);
  -webkit-backdrop-filter: blur(16px) saturate(145%);
}


/* === V3.0.7 fixes: single-side stable scrollbar, stronger glass, refined stars === */
[data-theme="dark"] body::before {
  background:
    radial-gradient(1.4px 1.4px at 5% 18%, rgba(255,255,255,.78), transparent 62%),
    radial-gradient(2.2px 2.2px at 12% 34%, rgba(255,255,255,.96), transparent 64%),
    radial-gradient(1.2px 1.2px at 18% 72%, rgba(255,255,255,.62), transparent 62%),
    radial-gradient(1.8px 1.8px at 24% 14%, rgba(255,255,255,.88), transparent 64%),
    radial-gradient(2.6px 2.6px at 31% 48%, rgba(255,255,255,.98), transparent 66%),
    radial-gradient(1.4px 1.4px at 38% 26%, rgba(255,255,255,.72), transparent 62%),
    radial-gradient(2.1px 2.1px at 46% 74%, rgba(255,255,255,.92), transparent 64%),
    radial-gradient(1.1px 1.1px at 54% 16%, rgba(255,255,255,.60), transparent 62%),
    radial-gradient(2.4px 2.4px at 61% 38%, rgba(255,255,255,.98), transparent 66%),
    radial-gradient(1.6px 1.6px at 68% 68%, rgba(255,255,255,.82), transparent 64%),
    radial-gradient(2.8px 2.8px at 76% 22%, rgba(255,255,255,.99), transparent 66%),
    radial-gradient(1.3px 1.3px at 84% 54%, rgba(255,255,255,.68), transparent 62%),
    radial-gradient(2px 2px at 91% 18%, rgba(255,255,255,.92), transparent 64%),
    radial-gradient(2.5px 2.5px at 95% 78%, rgba(255,255,255,.98), transparent 66%),
    radial-gradient(1px 1px at 10% 52%, rgba(255,255,255,.36), transparent 60%),
    radial-gradient(1px 1px at 28% 84%, rgba(255,255,255,.30), transparent 60%),
    radial-gradient(1px 1px at 50% 8%, rgba(255,255,255,.34), transparent 60%),
    radial-gradient(1px 1px at 72% 88%, rgba(255,255,255,.28), transparent 60%),
    radial-gradient(1px 1px at 88% 42%, rgba(255,255,255,.32), transparent 60%);
  opacity: .98;
}
[data-theme="dark"] body::after {
  background:
    radial-gradient(1px 1px at 8% 28%, rgba(255,255,255,.24), transparent 60%),
    radial-gradient(1px 1px at 22% 62%, rgba(255,255,255,.22), transparent 60%),
    radial-gradient(1px 1px at 34% 42%, rgba(255,255,255,.26), transparent 60%),
    radial-gradient(1px 1px at 47% 12%, rgba(255,255,255,.20), transparent 60%),
    radial-gradient(1px 1px at 63% 58%, rgba(255,255,255,.24), transparent 60%),
    radial-gradient(1px 1px at 79% 36%, rgba(255,255,255,.22), transparent 60%),
    radial-gradient(1px 1px at 92% 70%, rgba(255,255,255,.20), transparent 60%);
  opacity: .58;
}
[data-theme="light"] body {
  background:
    radial-gradient(760px 360px at 12% 8%, rgba(56,189,248,.22), transparent 58%),
    radial-gradient(720px 340px at 86% 10%, rgba(59,130,246,.16), transparent 56%),
    radial-gradient(980px 480px at 50% 100%, rgba(191, 225, 255, .34), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, #f9fcff 22%, #eef6ff 70%, #eaf3ff 100%);
}
[data-theme="light"] .site-header,
[data-theme="light"] .card,
[data-theme="light"] .preview-panel,
[data-theme="light"] .split-banner,
[data-theme="light"] .step,
[data-theme="light"] .doc-item,
[data-theme="light"] .metric,
[data-theme="light"] .table-row,
[data-theme="light"] .tech-sidebar,
[data-theme="light"] .footer,
[data-theme="light"] .btn-secondary,
[data-theme="light"] .theme-toggle {
  background: linear-gradient(180deg, rgba(255,255,255,.72), rgba(244,249,255,.54));
  border-color: rgba(255,255,255,.72);
  box-shadow:
    0 24px 56px rgba(24,54,98,.12),
    0 0 0 1px rgba(96,165,250,.08),
    inset 0 1px 0 rgba(255,255,255,.98),
    inset 0 -28px 42px rgba(186,230,253,.22);
  backdrop-filter: blur(28px) saturate(170%);
  -webkit-backdrop-filter: blur(28px) saturate(170%);
}
[data-theme="light"] .card::before,
[data-theme="light"] .preview-panel::before,
[data-theme="light"] .split-banner::before,
[data-theme="light"] .doc-item::before,
[data-theme="light"] .step::before {
  background: linear-gradient(135deg, rgba(255,255,255,.84), rgba(255,255,255,.28) 36%, rgba(96,165,250,.12) 74%, rgba(255,255,255,.18) 100%);
}
[data-theme="light"] .card:hover,
[data-theme="light"] .doc-item:hover,
[data-theme="light"] .preview-panel:hover,
[data-theme="light"] .split-banner:hover {
  box-shadow:
    0 30px 68px rgba(24,54,98,.15),
    0 0 0 1px rgba(96,165,250,.10),
    inset 0 1px 0 rgba(255,255,255,1),
    inset 0 -30px 44px rgba(191,225,255,.24);
}
.tech-sidebar {
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.tech-sidebar::-webkit-scrollbar {
  width: 0;
  height: 0;
}


/* Technical manual polish */
.technical-manual-page .clean-list{list-style:none;padding:0;margin:0;display:grid;gap:12px;}
.technical-manual-page .chapter-card{margin:0;}
.technical-manual-page .chapter-card-link{display:block;text-decoration:none;padding:1.2rem 1.25rem;border-radius:20px;transition:transform .18s ease, border-color .18s ease, background .18s ease, box-shadow .18s ease;}
.technical-manual-page .chapter-card-title{display:block;margin-bottom:.45rem;font-size:1.12rem;font-weight:700;color:#6fb1ff;}
.technical-manual-page .chapter-card-desc{display:block;color:#b6c3d9;line-height:1.65;}
.technical-manual-page .chapter-card-link:hover{transform:translateY(-1px);background:rgba(19,35,60,.32);box-shadow:0 10px 28px rgba(4,10,22,.18);}
.technical-manual-page .download-cta{margin-top:2rem;padding:1.75rem 1.5rem;text-align:center;background:linear-gradient(180deg, rgba(9,18,34,.28), rgba(9,18,34,.16));border:1px dashed rgba(111,177,255,.18);border-radius:20px;backdrop-filter:blur(10px);}
.technical-manual-page .download-cta-button{display:inline-block;min-width:220px;background:linear-gradient(135deg,#3aa0ff,#6fc3ff);color:#fff;padding:.95rem 2.2rem;text-decoration:none;border-radius:999px;font-weight:700;letter-spacing:.02em;box-shadow:0 10px 28px rgba(70,150,255,.38);transition:transform .22s ease, box-shadow .22s ease;}
.technical-manual-page .download-cta-button:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(70,150,255,.52);}
.technical-manual-page .download-cta-note{display:block;margin-top:.95rem;font-size:.94rem;color:var(--muted);}
.technical-manual-page section#intro{padding:26px 24px 22px;}
.technical-manual-page section#intro h1{margin-bottom:14px;}
.technical-manual-page section#intro > p{margin-bottom:1rem;}
.technical-manual-page .chapter-heading{margin-top:0;}
.technical-manual-page section:not(#intro) > .chapter-heading:first-child{margin-top:0;}
[data-theme="light"] .technical-manual-page .chapter-card-link:hover{background:rgba(255,255,255,.72);}


/* Fix7: technical manual code block alignment */
.technical-manual-page pre{display:block;white-space:pre;tab-size:4;}
.technical-manual-page pre > code{display:block;white-space:inherit;min-width:max-content;}
.technical-manual-page pre *{letter-spacing:0;}


/* F3 getting started refinement */
.getting-started-shell{
  gap:28px;
  padding:28px;
  align-items:center;
}
.getting-started-copy{
  min-height:180px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding:4px 4px 4px 8px;
}
.gs-head{max-width:560px;}
.gs-head h2{
  margin:0 0 10px;
  font-size:46px;
  line-height:1.06;
}
.gs-head p{
  margin:0 0 16px;
  max-width:36ch;
  font-size:18px;
  line-height:1.65;
}
.gs-mini-flow{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  color:#bcd7f4;
  font-size:14px;
}
.gs-pill{
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(115,170,255,.18);
  background:rgba(255,255,255,.03);
}
.gs-steps{gap:14px;}
.gs-step{
  grid-template-columns:46px 1fr 22px;
  align-items:center;
  min-height:74px;
  padding:14px 16px;
  border-radius:22px;
  border:1px solid rgba(120,170,240,.18);
  background:linear-gradient(90deg, rgba(255,255,255,.05), rgba(255,255,255,.025));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.02);
}
.gs-step::before{background:none;}
.gs-step:hover{
  border-color:rgba(120,190,255,.34);
  background:linear-gradient(90deg, rgba(255,255,255,.07), rgba(255,255,255,.035));
  transform:translateY(-1px);
}
.gs-step .step-no{
  width:46px;
  height:46px;
  border-radius:14px;
  font-size:30px;
  background:linear-gradient(180deg, rgba(95,170,255,.18), rgba(95,170,255,.09));
  border:1px solid rgba(120,190,255,.16);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
}
.gs-step-body{min-width:0;}
.gs-step-body strong{
  display:block;
  margin:0 0 4px;
  font-size:18px;
  line-height:1.2;
}
.gs-step-body p{
  margin:0;
  color:var(--muted);
  font-size:14px;
  line-height:1.45;
}
.gs-step-arrow{
  margin-left:auto;
  color:#7fbff3;
  font-size:22px;
  opacity:.75;
}
@media (max-width:980px){
  .getting-started-shell{gap:20px;}
  .getting-started-copy{min-height:auto;padding:0;}
  .gs-head h2{font-size:38px;}
  .gs-head p{max-width:none;font-size:17px;}
}

.gs-step{
  text-decoration:none;
  color:inherit;
}
.gs-step:visited{color:inherit;}