:root {
  --bg: #090711;
  --band: #100d17;
  --panel: #18131f;
  --panel-2: #21182b;
  --header: #16072e;
  --text: #ffffff;
  --muted: #b8afc1;
  --quiet: #887f91;
  --line: rgba(255,255,255,.14);
  --magenta: #d349ef;
  --magenta-dark: #b932d0;
  --cyan: #55dbe7;
  --green: #59d698;
  --coral: #ff715f;
  --amber: #ffbd56;
  --shadow: 0 20px 54px rgba(0,0,0,.32);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--text); background: var(--bg); font-family: "Proxima Nova", "Open Sans", Arial, sans-serif; line-height: 1.62; letter-spacing: 0; }
a { color: inherit; }
img { display: block; max-width: 100%; }
[hidden] { display: none !important; }
button, input { font: inherit; letter-spacing: 0; }
.visually-hidden { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0,0,0,0) !important; white-space: nowrap !important; border: 0 !important; }

.site-header { height: 80px; position: sticky; top: 0; z-index: 20; display: flex; align-items: center; background: var(--header); border-bottom: 1px solid rgba(255,255,255,.07); box-shadow: 0 8px 28px rgba(5,1,16,.22); }
.header-inner { width: min(1280px, calc(100% - 56px)); min-width: 0; margin: auto; display: flex; align-items: center; gap: 18px; }
.brand { flex: 0 0 auto; display: flex; align-items: center; gap: 10px; text-decoration: none; font-size: 20px; font-weight: 800; white-space: nowrap; }
.brand img { width: 44px; height: 44px; object-fit: contain; }
.site-search { position: relative; flex: 0 1 500px; width: min(500px, 100%); min-width: 220px; margin-left: 14px; }
.site-search button { position: absolute; top: 0; right: 0; width: 48px; height: 42px; display: grid; place-items: center; padding: 0; border: 0; border-radius: 0 999px 999px 0; color: #bbb2c5; background: transparent; cursor: pointer; }
.site-search button:hover { color: #fff; }
.search-glyph { position: relative; width: 15px; height: 15px; border: 2px solid currentColor; border-radius: 50%; }
.search-glyph::after { content: ""; position: absolute; width: 6px; height: 2px; right: -5px; bottom: -2px; border-radius: 2px; background: currentColor; transform: rotate(45deg); transform-origin: left center; }
.site-search input { display: block; width: 100%; height: 42px; padding: 0 44px 0 18px; border: 1px solid #514764; border-radius: 999px; outline: 0; color: #fff; background: #272039; }
.site-search input:focus { border-color: var(--magenta); box-shadow: 0 0 0 3px rgba(211,73,239,.15); }
.site-search input::placeholder { color: #aaa1b6; }

.page { width: min(1180px, calc(100% - 56px)); margin: auto; padding: 28px 0 82px; }
.breadcrumb { margin-bottom: 34px; color: #938a9d; font-size: 13px; }
.breadcrumb a { color: #cfc6d5; text-decoration: none; }
.breadcrumb a:hover { color: var(--cyan); }
.detail-layout { display: grid; grid-template-columns: minmax(0, 820px) 260px; gap: 56px; align-items: start; }
.article { min-width: 0; }
.detail-hero { padding: 18px 0 34px; }
.eyebrow { margin-bottom: 13px; color: var(--cyan); font-size: 12px; font-weight: 850; text-transform: uppercase; }
h1 { max-width: 800px; margin: 0 0 20px; font-size: 48px; line-height: 1.08; letter-spacing: 0; }
.answer-box { padding: 20px 0 20px 22px; border-left: 3px solid var(--cyan); color: #d1cad6; font-size: 18px; }
.button-row { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 22px; }
.primary-button, .secondary-button { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; padding: 0 18px; border-radius: 999px; text-decoration: none; font-weight: 800; white-space: nowrap; }
.primary-button { border: 1px solid var(--magenta); color: #fff; background: var(--magenta); box-shadow: 0 9px 24px rgba(211,73,239,.18); }
.primary-button:hover { background: var(--magenta-dark); }
.secondary-button { border: 1px solid #574b63; color: #fff; background: #21192a; }
.secondary-button:hover { border-color: #83738f; background: #2a2035; }

.media-poster { position: relative; overflow: hidden; aspect-ratio: 16 / 9; margin: 8px 0 44px; border: 1px solid #51445c; border-radius: 8px; background: var(--panel); box-shadow: var(--shadow); }
.media-poster img { width: 100%; height: 100%; object-fit: cover; }
.video-poster { display: block; width: 100%; padding: 0; color: inherit; text-align: left; cursor: pointer; transition: border-color .18s ease, transform .18s ease; }
.video-poster:hover { border-color: var(--magenta); transform: translateY(-1px); }
.video-poster:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; }
.video-poster:hover .play-circle { border-color: #fff; background: var(--magenta); }
.youtube-player { position: absolute; inset: 0; display: block; width: 100%; height: 100%; border: 0; background: #000; }
.play-placeholder { position: absolute; inset: 0; display: grid; place-items: center; pointer-events: none; }
.play-circle { width: 62px; height: 62px; display: grid; place-items: center; padding-left: 4px; border: 1px solid rgba(255,255,255,.55); border-radius: 50%; color: #fff; background: rgba(9,7,17,.78); font-size: 22px; }
.poster-label { position: absolute; left: 14px; bottom: 14px; padding: 7px 10px; border: 1px solid rgba(255,255,255,.18); border-radius: 999px; color: #d8d1de; background: rgba(9,7,17,.9); font-size: 11px; font-weight: 750; }

.article-section { scroll-margin-top: 100px; padding: 42px 0; border-top: 1px solid rgba(255,255,255,.1); }
.article-section h2, .final-cta h2 { margin: 0 0 12px; font-size: 30px; line-height: 1.2; }
.article-section h3 { margin: 27px 0 7px; font-size: 19px; }
.article-section p { margin: 0 0 16px; color: #bbb3c2; }
.article-section ul { margin: 14px 0 0; padding-left: 22px; color: #c6becb; }
.article-section li { margin: 8px 0; }
.prompt-block { position: relative; margin-top: 18px; padding: 20px; border: 1px solid #584764; border-radius: 8px; background: #0d0a11; box-shadow: var(--shadow); }
.prompt-block + .prompt-block { margin-top: 14px; }
.prompt-block strong { display: block; max-width: calc(100% - 120px); margin-bottom: 10px; color: var(--cyan); }
.prompt-block pre { max-height: 460px; overflow: auto; margin: 0; padding: 15px 0 0; border-top: 1px solid rgba(255,255,255,.1); color: #d8d0de; font-family: Consolas, "Courier New", monospace; font-size: 13px; line-height: 1.62; white-space: pre-wrap; overflow-wrap: anywhere; }
.copy-button { position: absolute; top: 15px; right: 15px; min-height: 34px; padding: 0 12px; border: 1px solid #6a5275; border-radius: 999px; color: #fff; background: #2a2035; cursor: pointer; font-size: 12px; font-weight: 800; }
.copy-button:hover { border-color: var(--magenta); color: #f2b5fd; }
.reference-note { margin-top: 12px; color: #8e8597; font-size: 12px; }
.build-list { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px 24px; padding: 0 !important; list-style: none; }
.build-list li { position: relative; margin: 0; padding: 12px 12px 12px 34px; border: 1px solid #403649; border-radius: 8px; background: var(--panel); }
.build-list li::before { content: "✓"; position: absolute; left: 12px; color: var(--green); font-weight: 900; }
.steps { display: grid; gap: 1px; overflow: hidden; border: 1px solid #403649; border-radius: 8px; background: #403649; }
.step { display: grid; grid-template-columns: 46px 1fr; gap: 16px; padding: 21px; background: var(--panel); }
.step-number { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: var(--magenta); font-weight: 850; }
.step h3 { margin: 0 0 5px; font-size: 18px; }
.step p { margin: 0; font-size: 14px; }
.faq-list { display: grid; gap: 10px; }
.faq-list details { border: 1px solid #44394d; border-radius: 8px; background: var(--panel); }
.faq-list summary { padding: 17px 19px; cursor: pointer; font-weight: 800; }
.faq-list details p { margin: 0; padding: 0 19px 18px; font-size: 14px; }
.related-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; }
.related-card { min-height: 116px; display: flex; flex-direction: column; justify-content: space-between; gap: 12px; padding: 17px; border: 1px solid #44394d; border-radius: 8px; background: var(--panel); text-decoration: none; }
.related-card:hover { border-color: var(--magenta); background: var(--panel-2); }
.related-card span { color: var(--cyan); font-size: 10px; font-weight: 850; text-transform: uppercase; }
.related-card strong { font-size: 14px; line-height: 1.35; }
.final-cta { margin-top: 18px; padding: 28px; border: 1px solid #51445c; border-radius: 8px; background: var(--panel-2); }
.final-cta p { margin: 0; color: #b8afc1; }

.toc { position: sticky; top: 106px; padding: 19px; border: 1px solid #44394d; border-radius: 8px; background: var(--panel); }
.toc strong { display: block; margin-bottom: 12px; }
.toc nav { margin-bottom: 17px; }
.toc nav a { display: block; padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,.08); color: #aaa2b1; text-decoration: none; font-size: 12px; }
.toc nav a:hover { color: var(--cyan); }
.toc .primary-button { width: 100%; font-size: 12px; }

.site-footer { margin-top: 0; padding-top: 58px; border-top: 1px solid rgba(255,255,255,.1); color: #fff; background: #0b0710; }
.footer-inner { width: min(1280px, calc(100% - 56px)); margin-inline: auto; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(4, minmax(0,1fr)); gap: 38px; padding-bottom: 44px; }
.footer-brand .brand { width: fit-content; margin-bottom: 14px; }
.footer-brand p { max-width: 250px; margin: 0; color: #aaa1b2; font-size: 13px; }
.social-preview { margin-top: 20px; }
.social-preview h3, .footer-col h3 { margin: 0 0 11px; font-size: 12px; }
.social-icons { display: flex; align-items: center; gap: 9px; }
.social-icon { width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid #4c4054; border-radius: 50%; background: #211829; transition: border-color .18s ease, background .18s ease; }
.social-icon:hover { border-color: var(--magenta); background: #33203c; }
.social-icon img { width: 19px; height: 19px; object-fit: contain; opacity: .9; }
.footer-col h3 { margin-bottom: 14px; font-size: 13px; }
.footer-col a, .footer-col span { display: block; padding: 5px 0; color: #aaa1b2; text-decoration: none; font-size: 13px; line-height: 1.45; }
.footer-col a:hover { color: #efadfb; }
.footer-col .future { color: #655d6d; }
.legal { padding: 18px 0; border-top: 1px solid rgba(255,255,255,.1); }
.legal-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; color: #786f80; font-size: 12px; }
.legal-links { display: flex; flex-wrap: wrap; gap: 18px; }
.legal-links a { color: #aaa1b2; text-decoration: none; }
.legal-links a:hover { color: #efadfb; }
.prompt-copy-dialog { width: min(420px, calc(100% - 32px)); display: none; align-items: center; gap: 16px; padding: 22px; border: 1px solid #5d4a68; border-radius: 8px; color: #fff; background: #18131f; box-shadow: 0 24px 70px rgba(0,0,0,.58); }
.prompt-copy-dialog[open] { display: flex; }
.prompt-copy-dialog::backdrop { background: rgba(6,3,10,.7); backdrop-filter: blur(3px); }
.prompt-copy-icon { width: 42px; height: 42px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 50%; color: #07140e; background: var(--green); font-size: 22px; font-weight: 900; }
.prompt-copy-dialog.is-error .prompt-copy-icon { color: #1b0806; background: var(--coral); }
.prompt-copy-dialog h2 { margin: 0 0 3px; font-size: 18px; line-height: 1.25; }
.prompt-copy-dialog p { margin: 0; color: #b8afc1; font-size: 13px; }
.howto-back-to-top { position: fixed; right: 22px; bottom: 22px; z-index: 18; width: 42px; height: 42px; border: 1px solid #6a5275; border-radius: 50%; color: #fff; background: #2a2035; box-shadow: var(--shadow); cursor: pointer; opacity: 0; pointer-events: none; transform: translateY(10px); transition: opacity .18s ease, transform .18s ease; }
.howto-back-to-top.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.howto-back-to-top:hover { border-color: var(--magenta); background: var(--magenta); }

.hub-hero { display: grid; grid-template-columns: minmax(0,1fr) minmax(360px,.82fr); gap: 48px; align-items: center; padding: 54px 0 64px; }
.hub-hero h1 { margin-bottom: 18px; }
.hero-copy { max-width: 670px; margin: 0; color: #c5bdcc; font-size: 18px; }
.prompt-demo { padding: 22px; border: 1px solid #51445c; border-radius: 8px; background: var(--panel); box-shadow: var(--shadow); }
.prompt-label { display: block; margin-bottom: 9px; color: var(--cyan); font-size: 11px; font-weight: 850; text-transform: uppercase; }
.prompt-demo p { margin: 0; color: #d7d0dc; }
.prompt-create-button { margin-top: 18px; }
.filter-bar { display: flex; gap: 10px; padding: 20px 0 36px; border-top: 1px solid rgba(255,255,255,.1); }
.tutorial-search { flex: 1 1 360px; min-height: 44px; padding: 0 16px; border: 1px solid #514764; border-radius: 999px; outline: 0; color: #fff; background: #272039; }
.filter-chip { min-height: 40px; padding: 0 14px; border: 1px solid #4b4055; border-radius: 999px; color: #d2cad8; background: #1b1522; cursor: pointer; }
.filter-chip[aria-pressed="true"] { border-color: var(--magenta); color: #fff; background: var(--magenta); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin: 22px 0 22px; }
.section-heading h2 { margin: 0; font-size: 30px; }
.section-heading a { color: var(--cyan); text-decoration: none; font-size: 13px; }
.featured-card { display: grid; grid-template-columns: 1.15fr .85fr; overflow: hidden; margin-bottom: 54px; border: 1px solid #51445c; border-radius: 8px; background: var(--panel); text-decoration: none; }
.featured-card img { width: 100%; height: 100%; min-height: 330px; object-fit: cover; }
.featured-copy { padding: 30px; }
.featured-copy h2 { margin: 12px 0; font-size: 30px; line-height: 1.2; }
.featured-copy p { color: #b8afc1; }
.tutorial-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; }
.tutorial-card { overflow: hidden; border: 1px solid #44394d; border-radius: 8px; background: var(--panel); text-decoration: none; }
.tutorial-card:hover { border-color: var(--magenta); background: var(--panel-2); }
.tutorial-cover { position: relative; aspect-ratio: 16/9; overflow: hidden; background: #21182b; }
.tutorial-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .22s ease; }
.tutorial-card:hover img { transform: scale(1.025); }
.card-tag { position: absolute; top: 10px; left: 10px; padding: 6px 9px; border: 1px solid rgba(255,255,255,.18); border-radius: 999px; color: #fff; background: rgba(9,7,17,.9); font-size: 10px; font-weight: 800; }
.tutorial-card-body { padding: 17px; }
.tutorial-card h3 { min-height: 50px; margin: 0 0 8px; font-size: 17px; line-height: 1.4; }
.tutorial-card p { min-height: 66px; margin: 0; color: #aaa2b2; font-size: 13px; }
.card-meta { display: flex; justify-content: space-between; gap: 10px; margin-top: 14px; padding-top: 12px; border-top: 1px solid rgba(255,255,255,.09); color: var(--cyan); font-size: 11px; }
.process-panel, .faq-panel { margin-top: 68px; padding-top: 48px; border-top: 1px solid rgba(255,255,255,.1); }
.process-panel h2, .faq-panel h2 { margin: 0 0 24px; font-size: 30px; }
.process-grid { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); gap: 1px; overflow: hidden; border: 1px solid #403649; border-radius: 8px; background: #403649; }
.process-step { min-height: 170px; padding: 18px; background: var(--panel); }
.process-step span { color: var(--magenta); font-size: 12px; font-weight: 850; }
.process-step h3 { margin: 18px 0 7px; font-size: 17px; }
.process-step p { margin: 0; color: #aaa2b2; font-size: 12px; }

@media (max-width: 980px) {
  .detail-layout { grid-template-columns: 1fr; gap: 30px; }
  .toc { display: none; }
  .page { width: min(100% - 36px, 820px); }
  .hub-hero, .featured-card { grid-template-columns: 1fr; }
  .tutorial-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .process-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 680px) {
  .site-header { height: 56px; }
  .header-inner { width: calc(100% - 20px); gap: 8px; }
  .brand img { width: 38px; height: 38px; }
  .brand-name { display: none; }
  .site-search { flex: 1 1 auto; min-width: 0; margin-left: 2px; }
  .site-search input, .site-search button { height: 38px; }
  .page { width: calc(100% - 24px); padding-top: 20px; }
  .breadcrumb { margin-bottom: 22px; }
  h1 { font-size: 37px; }
  .answer-box { font-size: 16px; }
  .article-section { padding: 34px 0; }
  .article-section h2, .final-cta h2 { font-size: 26px; }
  .build-list, .related-grid { grid-template-columns: 1fr; }
  .step { grid-template-columns: 38px 1fr; gap: 12px; padding: 17px 14px; }
  .step-number { width: 34px; height: 34px; }
  .prompt-block { padding: 58px 15px 16px; }
  .prompt-block strong { max-width: none; }
  .copy-button { left: 15px; right: auto; }
  .primary-button, .secondary-button { width: 100%; }
  .media-poster { margin-bottom: 28px; }
  .hub-hero { display: block; padding: 34px 0 44px; }
  .prompt-demo { margin-top: 28px; }
  .filter-bar { overflow-x: auto; }
  .tutorial-search { min-width: 220px; }
  .tutorial-grid, .process-grid { grid-template-columns: 1fr; }
  .featured-card img { min-height: 210px; }
  .featured-copy { padding: 21px; }
  .site-footer { padding-top: 42px; }
  .footer-inner { width: calc(100% - 24px); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px 20px; }
  .footer-brand { grid-column: 1 / -1; }
  .legal-inner { align-items: flex-start; flex-direction: column; }
}