.w-page {
  --w-bg: #080808;
  --w-panel: #0f0f0f;
  --w-line: #1f1f1f;
  --w-line-2: #2a2a2a;
  --w-text: #f5f5f5;
  --w-text-2: #b4b4b4;
  --w-muted: #8a8a8a;
  --w-blue: #2563eb;
  --w-blue-text: #5b9bff;
  --w-font: 'Geist', 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --w-mono: 'Geist Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  margin: 0;
  background: var(--w-bg);
  color: var(--w-text);
  font-family: var(--w-font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
.w-page *, .w-page *::before, .w-page *::after { box-sizing: border-box; }
.w-page a { color: inherit; }
.w-page :focus-visible { outline: 2px solid var(--w-blue-text); outline-offset: 3px; border-radius: 4px; }
.w-skip { position: absolute; left: 16px; top: -60px; z-index: 50; padding: 10px 14px; border-radius: 8px; background: #fff; color: #080808; font-weight: 600; text-decoration: none; }
.w-skip:focus { top: 12px; }
.w-wrap { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 640px) { .w-wrap { padding: 0 16px; } }

.w-head { position: sticky; top: 0; z-index: 20; background: rgba(8, 8, 8, 0.82); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); border-bottom: 1px solid var(--w-line); }
.w-head-in { height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.w-brand { display: inline-flex; align-items: center; text-decoration: none; }
.w-brand svg { display: block; height: 30px; width: auto; }
.w-nav { display: flex; align-items: center; gap: 4px; }
.w-nav a { padding: 8px 12px; border-radius: 999px; color: var(--w-text-2); font-size: 14px; text-decoration: none; transition: color 0.2s, background 0.2s; }
.w-nav a[aria-current='page'] { color: var(--w-blue-text); background: rgba(59, 130, 246, 0.14); }
@media (hover: hover) { .w-nav a:hover { color: var(--w-text); } }
.w-buy { margin-left: 8px; padding: 8px 16px !important; background: var(--w-blue); color: #fff !important; font-weight: 500; }
@media (hover: hover) { .w-buy:hover { background: #1d4ed8; } }
@media (max-width: 640px) {
  .w-head-in { height: 56px; }
  .w-brand svg { height: 26px; }
  .w-nav a:not(.w-buy):not([aria-current='page']) { display: none; }
  .w-nav a { font-size: 13.5px; padding: 8px 10px; }
}

.w-foot { border-top: 1px solid var(--w-line, #1f1f1f); background: var(--w-bg, #080808); color: var(--w-text-2, #b4b4b4); font-family: var(--w-font, 'Geist', 'Inter', system-ui, sans-serif); font-size: 14px; line-height: 1.5; }
.w-foot a { color: var(--w-text-2, #b4b4b4); text-decoration: none; transition: color 0.2s; }
@media (hover: hover) { .w-foot a:hover { color: #f5f5f5; } }
.w-foot a:focus-visible { outline: 2px solid #5b9bff; outline-offset: 3px; border-radius: 4px; }
.w-foot-top { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 2fr); gap: 48px; padding: 56px 0 44px; }
.w-foot-brand a { display: inline-flex; }
.w-foot-brand svg { display: block; height: 28px; width: auto; }
.w-foot-brand p { margin: 14px 0 0; max-width: 280px; color: var(--w-muted, #8a8a8a); }
.w-foot-nav { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; }
.w-foot-nav h2 { margin: 0 0 14px; font-family: var(--w-mono, 'Geist Mono', ui-monospace, monospace); font-size: 11px; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--w-muted, #8a8a8a); }
.w-foot-nav ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.w-foot-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; padding: 20px 0 28px; border-top: 1px solid var(--w-line, #1f1f1f); color: var(--w-muted, #8a8a8a); font-size: 13px; }
.w-foot-bottom p { margin: 0; }
@media (max-width: 860px) { .w-foot-top { grid-template-columns: 1fr; gap: 36px; } }
@media (max-width: 520px) {
  .w-foot-top { padding: 44px 0 32px; }
  .w-foot-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 20px; }
  .w-foot-nav ul { gap: 4px; }
  .w-foot-nav a { display: inline-block; padding: 6px 0; }
}

.w-main { padding: 64px 0 96px; }
@media (max-width: 640px) { .w-main { padding: 40px 0 72px; } }
.w-kicker { margin: 0 0 14px; font-family: var(--w-mono); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--w-blue-text); }
.w-crumbs { margin: 0 0 28px; font-size: 13.5px; color: var(--w-muted); }
.w-crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; }
.w-crumbs li + li::before { content: '/'; margin-right: 6px; color: var(--w-line-2); }
.w-crumbs--doc { max-width: 700px; margin: 0 auto 28px; }
.w-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.w-crumbs a { color: var(--w-text-2); text-decoration: none; }
@media (hover: hover) { .w-crumbs a:hover { color: var(--w-text); } }

.w-prose { max-width: 700px; margin: 0 auto; font-size: 17px; line-height: 1.7; color: var(--w-text-2); }
.w-prose > :first-child { margin-top: 0; }
.w-prose h2 { margin: 52px 0 14px; color: var(--w-text); font-size: 26px; font-weight: 600; line-height: 1.25; letter-spacing: -0.02em; }
.w-prose h3 { margin: 32px 0 10px; color: var(--w-text); font-size: 19px; font-weight: 600; line-height: 1.35; letter-spacing: -0.01em; }
.w-prose p { margin: 0 0 18px; }
.w-prose ul, .w-prose ol { margin: 0 0 20px; padding-left: 1.3em; }
.w-prose li { margin: 6px 0; padding-left: 4px; }
.w-prose li::marker { color: var(--w-muted); }
.w-prose strong { color: var(--w-text); font-weight: 600; }
.w-prose a { color: var(--w-blue-text); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
@media (hover: hover) { .w-prose a:hover { color: #8ab8ff; } }
.w-prose code { padding: 1px 6px; border-radius: 5px; background: #161616; font-family: var(--w-mono); font-size: 0.88em; color: var(--w-text); }
.w-prose blockquote { margin: 24px 0; padding: 14px 18px; border-left: 2px solid var(--w-blue); background: var(--w-panel); border-radius: 0 10px 10px 0; color: var(--w-text-2); }
.w-prose blockquote p:last-child { margin-bottom: 0; }
.w-prose hr { margin: 40px 0; border: 0; border-top: 1px solid var(--w-line); }
.w-table { margin: 24px 0 28px; overflow-x: auto; border: 1px solid var(--w-line); border-radius: 12px; }
.w-table table { width: 100%; border-collapse: collapse; font-size: 15px; line-height: 1.5; }
.w-table th, .w-table td { padding: 12px 14px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--w-line); }
.w-table th { color: var(--w-text); font-weight: 600; background: var(--w-panel); }
.w-table tr:last-child td { border-bottom: 0; }
.w-prose mark.tbd, mark.tbd { padding: 1px 6px; border-radius: 5px; background: rgba(231, 182, 96, 0.16); color: #f0c97a; font-weight: 500; }

.w-doc-head { max-width: 700px; margin: 0 auto 40px; }
.w-doc-head h1 { margin: 0 0 14px; font-size: clamp(34px, 5vw, 48px); font-weight: 600; line-height: 1.08; letter-spacing: -0.035em; }
.w-doc-head .w-lede { margin: 0; font-size: 19px; line-height: 1.55; color: var(--w-text-2); }
.w-meta { display: flex; flex-wrap: wrap; gap: 6px 18px; margin: 18px 0 0; padding: 0; list-style: none; font-size: 14px; color: var(--w-muted); }
.w-draft { max-width: 700px; margin: 0 auto 32px; padding: 14px 18px; border: 1px solid rgba(231, 182, 96, 0.35); border-radius: 12px; background: rgba(231, 182, 96, 0.07); color: #e9cf9c; font-size: 14.5px; }
.w-draft strong { color: #f5dca8; }
.w-legal-links { max-width: 700px; margin: 56px auto 0; padding-top: 24px; border-top: 1px solid var(--w-line); display: flex; flex-wrap: wrap; gap: 8px 22px; font-size: 15px; }
.w-legal-links a { color: var(--w-blue-text); text-decoration: none; }

.w-blog-head { max-width: 720px; margin-bottom: 48px; }
.w-blog-head h1 { margin: 0 0 14px; font-size: clamp(38px, 6vw, 60px); font-weight: 600; line-height: 1.02; letter-spacing: -0.04em; }
.w-blog-head p:not(.w-kicker) { margin: 0; font-size: 18px; color: var(--w-text-2); }
.w-feature { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 40px; align-items: center; padding-bottom: 56px; margin-bottom: 48px; border-bottom: 1px solid var(--w-line); }
.w-feature h2 { margin: 0 0 12px; font-size: clamp(26px, 3.2vw, 36px); font-weight: 600; line-height: 1.12; letter-spacing: -0.03em; }
.w-feature p:not(.w-post-meta) { margin: 0 0 18px; color: var(--w-text-2); font-size: 17px; }
.w-card-link { color: inherit; text-decoration: none; }
@media (hover: hover) { .w-card-link:hover h2, .w-card-link:hover h3 { color: var(--w-blue-text); } }
.w-cover { display: block; width: 100%; height: auto; aspect-ratio: 16 / 10; border-radius: 14px; border: 1px solid var(--w-line); background: #101010; object-fit: cover; }
.w-cat { font-family: var(--w-mono); font-size: 11.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--w-blue-text); }
.w-post-meta { display: flex; flex-wrap: wrap; gap: 4px 14px; margin: 10px 0 0; font-size: 13.5px; color: var(--w-muted); }
.w-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px 28px; list-style: none; margin: 0; padding: 0; }
.w-grid h3 { margin: 16px 0 8px; font-size: 20px; font-weight: 600; line-height: 1.25; letter-spacing: -0.02em; transition: color 0.2s; }
.w-grid p:not(.w-post-meta) { margin: 0; color: var(--w-text-2); font-size: 15px; }
.w-grid .w-cat { display: block; margin-top: 18px; }
.w-empty { padding: 56px 24px; border: 1px dashed var(--w-line-2); border-radius: 16px; text-align: center; color: var(--w-text-2); }
.w-empty a { color: var(--w-blue-text); }
@media (max-width: 960px) { .w-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 760px) { .w-feature { grid-template-columns: 1fr; gap: 24px; } }
@media (max-width: 560px) { .w-grid { grid-template-columns: 1fr; } }

.w-article-cover { max-width: 960px; margin: 0 auto 48px; }
.w-cta { max-width: 700px; margin: 48px auto 0; padding: 24px; border: 1px solid var(--w-line-2); border-radius: 16px; background: var(--w-panel); }
.w-cta h2 { margin: 0 0 8px; font-size: 20px; font-weight: 600; letter-spacing: -0.02em; color: var(--w-text); }
.w-cta p { margin: 0 0 16px; color: var(--w-text-2); font-size: 16px; }
.w-cta a { display: inline-flex; align-items: center; gap: 6px; padding: 10px 18px; border-radius: 999px; background: var(--w-blue); color: #fff; font-weight: 500; font-size: 15px; text-decoration: none; }
@media (hover: hover) { .w-cta a:hover { background: #1d4ed8; } }
.w-related { max-width: 1180px; margin: 80px auto 0; padding-top: 40px; border-top: 1px solid var(--w-line); }
.w-related > h2 { margin: 0 0 28px; font-size: 24px; font-weight: 600; letter-spacing: -0.02em; }

.w-404 { max-width: 620px; margin: 0 auto; padding: 64px 0 96px; text-align: center; }
.w-404 h1 { margin: 0 0 12px; font-size: clamp(34px, 6vw, 54px); font-weight: 600; letter-spacing: -0.04em; line-height: 1.05; }
.w-404 > p:not(.w-kicker) { margin: 0 auto; max-width: 44ch; color: var(--w-text-2); font-size: 17px; line-height: 1.55; }
.w-404-art { position: relative; width: 240px; height: 210px; margin: 0 auto 34px; }
.w-404-sheet { position: absolute; left: 50%; top: 8px; width: 148px; height: 190px; margin-left: -74px; border-radius: 10px; }
.w-404-sheet--back { background: #121212; border: 1px solid #242424; transform: translateX(-34px) rotate(-10deg); }
.w-404-sheet--mid { background: #181818; border: 1px solid #2c2c2c; transform: translateX(32px) rotate(8deg); }
.w-404-sheet--front { display: flex; flex-direction: column; gap: 8px; padding: 22px 18px; background: #f4f1ea; box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(255, 255, 255, 0.06); animation: w404float 6s ease-in-out infinite; }
.w-404-sheet--front b { margin-bottom: 10px; font: 400 52px/1 'Instrument Serif', Georgia, serif; letter-spacing: -0.03em; color: #1b1a18; text-align: left; }
.w-404-sheet--front i { display: block; height: 6px; border-radius: 3px; background: #ddd7ca; }
.w-404-sheet--front i:nth-of-type(1) { width: 100%; background: var(--w-blue); height: 3px; width: 34px; margin-bottom: 6px; }
.w-404-sheet--front i:nth-of-type(3) { width: 82%; }
.w-404-sheet--front i:nth-of-type(4) { width: 58%; }
@keyframes w404float { 0%, 100% { transform: translateY(0) rotate(-1deg); } 50% { transform: translateY(-6px) rotate(1deg); } }
@media (prefers-reduced-motion: reduce) { .w-404-sheet--front { animation: none; } }
.w-404-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin: 28px 0 0; }
.w-404-btn { display: inline-flex; align-items: center; height: 44px; padding: 0 20px; border-radius: 999px; background: #1a1a1a; color: var(--w-text); font-size: 15px; font-weight: 500; text-decoration: none; transition: background 0.2s; }
.w-404-btn--primary { background: var(--w-blue); color: #fff; }
@media (hover: hover) { .w-404-btn:hover { background: #262626; } .w-404-btn--primary:hover { background: #1d4ed8; } }
.w-404-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 22px; margin: 28px 0 0; padding: 22px 0 0; border-top: 1px solid var(--w-line); list-style: none; font-size: 14px; }
.w-404-links a { color: var(--w-muted); text-decoration: none; }
@media (hover: hover) { .w-404-links a:hover { color: var(--w-text); } }

img, video, picture, svg { -webkit-user-select: none; user-select: none; -webkit-user-drag: none; -webkit-touch-callout: none; }

@view-transition { navigation: auto; }
::view-transition-old(root), ::view-transition-new(root) { animation-duration: 0.18s; }
@media (prefers-reduced-motion: reduce) { @view-transition { navigation: none; } }
html { background: #080808; }

@media (pointer: coarse) { .w-foot a, .w-404-links a, .w-legal-links a { display: inline-block; padding: 7px 0; } }
@media (pointer: coarse) { .w-brand, .l-head a.wordmark, header a.wordmark { padding: 12px 0; margin: -12px 0; } }

.w-calc { max-width: 960px; margin: 0 auto 56px; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 20px; align-items: start; }
.w-calc-inputs, .w-calc-results { padding: 24px; border: 1px solid var(--w-line-2); border-radius: 16px; background: var(--w-panel); }
.w-calc-inputs { display: grid; gap: 18px; }
.w-calc-field label { display: block; margin: 0 0 6px; font-size: 14px; font-weight: 500; color: var(--w-text); }
.w-calc-field input, .w-calc-field select { width: 100%; height: 44px; padding: 0 12px; border: 1px solid var(--w-line-2); border-radius: 10px; background: var(--w-bg); color: var(--w-text); font: inherit; font-size: 16px; }
.w-calc-field input:focus-visible, .w-calc-field select:focus-visible { outline: 2px solid var(--w-blue-text); outline-offset: 1px; }
.w-calc-hint { margin: 6px 0 0; font-size: 13px; line-height: 1.45; color: var(--w-muted); }
.w-calc-results { position: sticky; top: 88px; }
.w-calc-label { margin: 0 0 4px; font-family: var(--w-mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--w-muted); }
.w-calc-big { margin: 0 0 20px; font-size: clamp(40px, 6vw, 56px); font-weight: 600; line-height: 1.05; letter-spacing: -0.035em; color: var(--w-blue-text); font-variant-numeric: tabular-nums; }
.w-calc-mid { margin: 0; font-size: 30px; font-weight: 600; letter-spacing: -0.02em; color: var(--w-text); font-variant-numeric: tabular-nums; }
.w-calc-list { margin: 0; display: grid; gap: 0; border-top: 1px solid var(--w-line); }
.w-calc-list div { display: flex; justify-content: space-between; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--w-line); font-size: 15px; }
.w-calc-list dt { color: var(--w-text-2); }
.w-calc-list dd { margin: 0; color: var(--w-text); font-weight: 500; font-variant-numeric: tabular-nums; }
.w-calc-project { display: grid; gap: 14px; margin-top: 22px; }
@media (max-width: 820px) {
  .w-calc { grid-template-columns: 1fr; }
  .w-calc-results { position: static; }
  .w-calc-inputs, .w-calc-results { padding: 20px; }
}