/* UberGPT network design system. Brand colors originate from the inspected project.
   Named brand fonts fall back locally; no unlicensed or remote font dependency. */
:root {
  color-scheme: dark;
  --brand-cyan: #00d6f7;
  --brand-violet: #b100f7;
  --surface: #020202;
  --surface-raised: #101015;
  --surface-input: #08080d;
  --text: #ffffff;
  --text-muted: #c5c5d0;
  --line: #363640;
  --focus: #76edff;
  --error: #ffb3bc;
  --success: #8aefc0;
  --body-font: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --heading-font: 'Space Grotesk', system-ui, sans-serif;
  --content-width: 1200px;
  --radius: 20px;
  --space: clamp(20px, 4vw, 48px);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 120px; }
body { margin: 0; color: var(--text); background: var(--surface); font: 400 1rem/1.75 var(--body-font); overflow-wrap: break-word; }
body::before { content: ''; position: absolute; z-index: -1; inset: 0 0 auto; height: 1000px; pointer-events: none; background: radial-gradient(ellipse at 85% 25%, #b100f718, transparent 48%), radial-gradient(ellipse at 10% 0, #00d6f714, transparent 50%); }
a { color: inherit; text-underline-offset: 5px; }
a:hover { color: var(--brand-cyan); }
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, [tabindex]:focus-visible { outline: 3px solid var(--focus); outline-offset: 5px; }
button, input, select, textarea { font: inherit; }
button, summary { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .65; }
.container, .header-inner { width: min(var(--content-width), 100% - 2 * var(--space)); margin-inline: auto; }
.preview-ribbon { padding: 7px 16px; text-align: center; font-size: .72rem; line-height: 1.6; color: var(--text-muted); background: #111118; border-bottom: 1px solid var(--line); }
.site-header { position: sticky; top: 0; z-index: 10; background: rgb(2 2 2 / 95%); border-bottom: 1px solid #383843; backdrop-filter: blur(14px); }
.header-inner { min-height: 106px; display: flex; align-items: center; justify-content: space-between; gap: 32px; padding-block: 18px; }
.brand-lockup { display: flex; flex-direction: column; align-items: flex-start; gap: 6px; flex: 0 0 auto; }
.header-inner > * { min-width: 0; }
.powered { color: var(--text-muted); font-size: 11px; line-height: 1.2; letter-spacing: .08em; }
.brand-lockup img { display: block; width: 206px; max-width: 100%; height: auto; object-fit: contain; opacity: 1; filter: none; }
.desktop-nav { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 4px clamp(12px, 2vw, 28px); font-size: .85rem; font-weight: 500; }
.desktop-nav a { display: flex; align-items: center; min-height: 44px; padding-inline: 4px; color: var(--text-muted); text-decoration: none; transition: color .15s ease; }
.desktop-nav a:hover { color: var(--text); }
.desktop-nav a[aria-current=page] { color: var(--brand-cyan); }
.mobile-menu { display: none; }
.hero { position: relative; isolation: isolate; overflow: hidden; padding-block: clamp(56px, 9vw, 120px); border-bottom: 1px solid var(--line); }
.hero::after { content: ''; position: absolute; z-index: -1; inset: 12% -2vw 8% 48%; background: radial-gradient(ellipse, #b100f712, transparent 68%); pointer-events: none; }
.hero-split { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(260px, 1fr); align-items: center; gap: clamp(32px, 5vw, 72px); }
.hero-editorial { max-width: 100%; }
.hero-editorial h1 { max-width: 1000px; }
.hero-editorial .hero-intro { max-width: 70ch; }
.eyebrow { color: var(--brand-cyan); font-size: .72rem; font-weight: 600; letter-spacing: .13em; text-transform: uppercase; margin: 0 0 20px; }
h1, h2, h3 { font-family: var(--heading-font); line-height: 1.14; font-weight: 300; text-wrap: balance; }
h1 { font-size: clamp(2.15rem, 4.6vw, 4.5rem); letter-spacing: -.035em; margin: 0 0 28px; }
h2 { font-size: clamp(1.6rem, 2.6vw, 2.5rem); letter-spacing: -.02em; margin: 0 0 24px; }
h3 { font-size: 1.25rem; margin: 0 0 14px; font-weight: 500; }
p { margin: 0 0 20px; }
.hero-intro, .section-intro { color: var(--text-muted); font-size: 1.1rem; max-width: 74ch; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 22px; margin-top: 32px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 20px; min-height: 48px; padding: 12px 22px; border-radius: 999px; font-size: .85rem; font-weight: 700; text-decoration: none; line-height: 1.5; transition: box-shadow .15s, background-color .15s, color .15s, transform .15s; }
.button-primary { color: #fff; border: 1px solid transparent; background: linear-gradient(#08080d, #08080d) padding-box, linear-gradient(85.15deg, var(--brand-cyan), var(--brand-violet)) border-box; }
.button-primary:hover:not(:disabled) { background: var(--brand-cyan); color: #000; box-shadow: 0 0 24px #00d6f725; }
.button-secondary { background: transparent; border: 1px solid #646470; color: #fff; }
.text-link { font-size: .9rem; display: inline-flex; gap: 12px; align-items: center; min-height: 44px; }
.flow-panel { padding: 28px; border: 1px solid var(--line); border-radius: 24px; background: linear-gradient(145deg, #13131bdd, #07070b); box-shadow: 0 12px 80px #0008; }
.flow-step { display: flex; gap: 20px; padding: 22px 0; position: relative; }
.flow-step + .flow-step { border-top: 1px solid var(--line); }
.flow-step h2 { font-size: 1.25rem; letter-spacing: 0; margin-bottom: 8px; font-weight: 500; }
.flow-step p { color: var(--text-muted); font-size: .88rem; margin: 0; }
.flow-index { color: var(--brand-cyan); font-size: .72rem; padding-top: 5px; }
.section { padding-block: clamp(40px, 6vw, 72px); border-bottom: 1px solid var(--line); }
.editorial, .partner-invitation, .form-section { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.55fr); gap: clamp(24px, 5vw, 80px); }
.editorial > div:first-child h2 { max-width: 18ch; }
.editorial .prose, .partner-invitation > div:last-child { max-width: 78ch; }
.editorial .prose p + p { margin-top: 18px; }
.prose p:last-child { margin-bottom: 0; }
.cards-list, .steps-list, .checklist-list { padding: 0; margin: 32px 0 0; list-style: none; }
.cards-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 24px; }
.cards-item { padding: 28px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface-raised); }
.item-number { display: block; color: var(--brand-cyan); font-size: .72rem; font-weight: 500; margin-bottom: 24px; }
.cards-item p, .steps-item p, .checklist-item p { color: var(--text-muted); margin-bottom: 0; }
.steps-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 210px), 1fr)); gap: 32px; }
.steps-item { border-top: 1px solid var(--brand-cyan); padding-top: 24px; }
.checklist-item { display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 20px; padding-block: 24px; border-top: 1px solid var(--line); }
.checklist-item .item-number { margin-top: 5px; }
.checklist-item p { max-width: 80ch; }
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 14px; }
table { width: 100%; border-collapse: collapse; font-size: .95rem; }
th, td { padding: 20px 24px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
th { font-weight: 500; }
thead th { color: var(--brand-cyan); background: var(--surface-raised); }
td { color: var(--text-muted); }
tbody tr:last-child > * { border-bottom: 0; }
.callout { border-inline-start: 2px solid var(--brand-violet); padding-inline-start: 28px; }
.callout .section-intro { max-width: 85ch; font-size: 1rem; }
.faq { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.55fr); gap: 40px; }
.faq-item { padding-block: 20px; border-bottom: 1px solid var(--line); }
.faq-item summary { font-weight: 500; min-height: 44px; }
.faq-item h3 { font-size: clamp(1.1rem, 1.4vw, 1.35rem); line-height: 1.4; font-weight: 500; margin: 0; }
.faq-item p { color: var(--text-muted); margin-top: 16px; }
.platform-context { max-width: 900px; }
.partner-invitation { background: radial-gradient(ellipse at 100% 50%, #b100f711, transparent 60%); }
.role-list, .question-list { padding-inline-start: 24px; color: var(--text-muted); max-width: 90ch; }
.role-list li, .question-list li { padding: 12px 0 12px 8px; }
.partner-form { padding: clamp(20px, 3vw, 32px); background: var(--surface-raised); border: 1px solid var(--line); border-radius: var(--radius); min-width: 0; }
.form-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 20px; }
.partner-form label:not(.checkbox-label) { display: block; margin: 20px 0 8px; font-size: .88rem; }
.partner-form input:not([type=checkbox]):not([type=hidden]), .partner-form textarea, .partner-form select { display: block; width: 100%; max-width: 100%; min-height: 48px; padding: 11px 12px; background: var(--surface-input); border: 1px solid #686875; border-radius: 8px; color: var(--text); }
.partner-form textarea { resize: vertical; }
.partner-form [aria-invalid=true] { border-color: var(--error) !important; }
.checkbox-label { display: flex; gap: 12px; align-items: flex-start; margin: 24px 0 0; font-size: .85rem; }
.checkbox-label input { margin-top: 6px; accent-color: var(--brand-cyan); width: 18px; height: 18px; flex: 0 0 auto; }
.form-status { color: var(--text-muted); font-size: .9rem; border-left: 2px solid var(--brand-cyan); padding-left: 14px; }
.form-status[data-state=error], .field-error { color: var(--error); }
.form-status[data-state=success] { color: var(--success); }
.field-error { display: block; font-size: .8rem; margin-top: 4px; }
.field-error:empty { display: none; }
.form-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.honeypot { position: absolute; left: -10000px; top: auto; width: 1px; height: 1px; overflow: hidden; }
.notice { padding: 16px; border: 1px solid var(--line); border-radius: 8px; }
.site-footer { padding-block: 40px; color: var(--text-muted); font-size: .8rem; display: flex; flex-wrap: wrap; gap: 32px; justify-content: space-between; }
.site-footer { border-top: 1px solid transparent; background: linear-gradient(var(--surface),var(--surface)) padding-box, linear-gradient(90deg,transparent,#00d6f72b,#b100f72b,transparent) border-box; }
.site-footer > p { max-width: 72ch; margin: 0; }
.site-footer > div { display: flex; flex-wrap: wrap; gap: 20px; align-items: flex-start; }
.site-footer a { min-height: 44px; display: inline-flex; align-items: flex-start; }
.skip-link { position: absolute; left: 20px; top: -100px; z-index: 30; padding: 12px 20px; background: #000; }
.skip-link:focus { top: 8px; }
html[lang^=ja] h1, html[lang^=ja] h2, html[lang^=ja] h3,
html[lang^=zh] h1, html[lang^=zh] h2, html[lang^=zh] h3,
html[lang^=ko] h1, html[lang^=ko] h2, html[lang^=ko] h3 { letter-spacing: 0; line-height: 1.5; }
.catalogue-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 310px), 1fr)); gap: 24px; padding-block: 40px; }
.catalogue-card { display: block; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); text-decoration: none; background: var(--surface-raised); }
.catalogue-card h2 { font-size: 1.5rem; }
.catalogue-card p { color: var(--text-muted); font-size: .9rem; }
@media (max-width: 1000px) {
  .hero-split { grid-template-columns: minmax(0, 1.4fr) minmax(230px, 1fr); gap: 32px; }
  .flow-panel { padding: 20px; }
  .editorial, .partner-invitation, .form-section, .faq { gap: 32px; }
}
@media (max-width: 800px) {
  .desktop-nav { display: none; }
  .mobile-menu { display: block; position: relative; }
  .mobile-menu summary { display: flex; gap: 16px; align-items: center; min-height: 44px; padding: 8px; list-style: none; }
  .mobile-menu summary::-webkit-details-marker { display: none; }
  .mobile-menu nav { position: absolute; right: 0; top: 100%; min-width: min(230px, calc(100vw - 40px)); max-width: calc(100vw - 40px); max-height: min(70vh, 32rem); overflow-y: auto; overscroll-behavior: contain; background: #101015; padding: 16px; border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 20px 40px #0008; }
  .mobile-menu nav a { display: block; min-height: 44px; padding: 10px; text-decoration: none; }
  .mobile-menu nav a[aria-current=page] { color: var(--brand-cyan); }
  .mobile-menu nav a:focus-visible { outline-offset: -3px; }
  .hero-split, .editorial, .partner-invitation, .form-section, .faq { grid-template-columns: minmax(0, 1fr); }
  .flow-panel { max-width: 100%; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
  .flow-step { padding: 8px 0; display: block; }
  .flow-step + .flow-step { border-top: 0; }
  .flow-index { display: block; margin-bottom: 10px; }
  .header-inner { min-height: 92px; gap: 20px; }
  .brand-lockup img { width: 178px; }
  .hero { padding-block: 48px; }
  .site-footer { display: block; }
  .site-footer > div { margin-top: 24px; }
}
@media (max-width: 480px) {
  .brand-lockup img { width: 152px; }
  .header-inner { gap: 12px; }
  .flow-panel, .form-grid { grid-template-columns: minmax(0, 1fr); }
  .flow-step { display: flex; }
  .flow-step + .flow-step { border-top: 1px solid var(--line); }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 12px; }
  .button { max-width: 100%; }
  th, td { padding: 16px 12px; }
  .callout { padding-inline-start: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button, .desktop-nav a { transition: none; }
}