/* Public website layout. Workspace and account surfaces keep their own styles. */
#platform-shell.platform-public { display: block; overflow: auto; background: var(--bg); scrollbar-gutter: stable; }
.public-header { position: sticky; top: 0; z-index: 5; border-bottom: 1px solid var(--line); background: var(--bg); }
.public-header-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; max-width: 1328px; min-height: 80px; padding: 16px 24px; margin: auto; }
.public-brand { display: inline-flex; align-items: center; gap: 10px; flex: none; border: 0; padding: 0; background: none; color: var(--text); font-size: 20px; font-weight: 650; letter-spacing: -.6px; }
.public-brand img { width: 32px; height: 36px; object-fit: contain; }
.public-logo-light { display: none; }
html[data-theme="light"] .public-logo-light { display: block; }
html[data-theme="light"] .public-logo-dark { display: none; }
.public-desktop-nav, .public-header-actions { display: flex; align-items: center; gap: 24px; }
.public-header-actions { gap: 16px; }
.public-desktop-nav button, .public-account, .public-footer button { border: 0; padding: 10px 0; background: none; color: var(--muted); font-size: 13px; cursor: pointer; }
.public-desktop-nav [aria-current], .public-desktop-nav button:hover, .public-footer button:hover { color: var(--text); }
.public-desktop-nav [aria-current] { text-decoration: underline; text-underline-offset: 9px; text-decoration-color: var(--yellow); }
.public-action { display: inline-flex; align-items: center; justify-content: center; gap: 14px; min-height: 46px; padding: 12px 20px; border: 1px solid var(--line); border-radius: 8px; color: var(--text); background: var(--panel); font-size: 14px; font-weight: 600; line-height: 1.4; text-decoration: none; cursor: pointer; }
.public-action:hover { background: var(--panel-2); }
.public-action-primary { background: #ffd338; border-color: #ffd338; color: #18180f; }
.public-action-primary:hover { background: #ffe16d; border-color: #ffe16d; }
.public-action svg, .public-text-link svg { width: 20px; height: 20px; flex: none; }
.public-menu-toggle { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); color: var(--text); }
.public-menu-toggle svg { width: 24px; height: 24px; }
.public-mobile-menu[hidden] { display: none; }
.public-mobile-menu { display: grid; padding: 8px 24px 20px; border-top: 1px solid var(--line); }
.public-mobile-menu button { min-height: 44px; border: 0; border-bottom: 1px solid var(--line); background: none; color: var(--text); text-align: left; padding: 12px 0; }
.public-mobile-menu [aria-current] { color: var(--yellow); }
.public-main { width: min(100% - 48px, 1280px); min-height: calc(100dvh - 270px); margin: auto; outline: none; }
.public-kicker { display: block; margin-bottom: 24px; color: var(--muted); font-size: 12px; line-height: 1.5; letter-spacing: .13em; }
.public-text-link { display: inline-flex; align-items: center; gap: 9px; min-height: 44px; border: 0; padding: 10px 0; background: none; color: var(--text); font-size: 14px; text-decoration: none; cursor: pointer; }
.public-text-link:hover { color: var(--yellow); }
.public-footer { display: flex; justify-content: space-between; gap: 60px; width: min(100% - 48px, 1280px); margin: 0 auto; padding: 32px 0 44px; border-top: 1px solid var(--line); }
.public-footer strong { font-size: 18px; }
#platform-shell .public-footer p { margin-top: 8px; color: var(--muted); font-size: 13px; }
.public-footer nav { display: flex; flex-wrap: wrap; align-content: start; justify-content: flex-end; gap: 0 24px; max-width: 610px; }
.public-page-intro { padding: 66px 0 54px; }
.public-page-intro h1 { font-size: clamp(36px, 4vw, 52px); line-height: 1.25; letter-spacing: -.04em; font-weight: 600; }
#platform-shell .public-page-intro p { margin-top: 22px; color: var(--muted); font-size: 16px; line-height: 1.8; }
.public-usage-list > section { display: grid; grid-template-columns: 40px 1fr 1fr; gap: 28px; align-items: center; padding: 44px 0; border-top: 1px solid var(--line); }
.public-step-number { align-self: start; color: var(--yellow); font-size: 13px; }
.public-usage-list h2 { font-size: 24px; font-weight: 600; }
#platform-shell .public-usage-list p { max-width: 46ch; margin-top: 16px; color: var(--muted); font-size: 14px; line-height: 1.85; }
.public-usage-list .public-action, .public-usage-list .public-text-link { margin-top: 24px; }
.public-step-visual { display: grid; align-content: center; min-height: 214px; padding: 28px; border: 1px solid var(--line); border-radius: 10px; background: var(--panel); }
.public-diagram-label { margin-bottom: 26px; color: var(--muted); font-size: 12px; }
.public-flow-diagram { display: flex; align-items: center; gap: 12px; }
.public-flow-diagram span { padding: 12px 14px; border: 1px solid var(--line); border-radius: 6px; color: var(--text); font-size: 13px; }
.public-flow-diagram i { font-style: normal; color: var(--blue); }
.public-usage-note { padding: 28px; margin: 32px 0 60px; border-left: 2px solid var(--yellow); background: var(--panel); }
.public-usage-note h2 { font-size: 20px; font-weight: 600; }
#platform-shell .public-usage-note p { max-width: 80ch; margin-top: 12px; color: var(--muted); font-size: 14px; line-height: 1.85; }
.public-help-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 60px; }
.public-help-layout > nav { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; }
.public-help-layout > nav a { padding: 12px 0; color: var(--muted); font-size: 14px; text-decoration: none; }
.public-help-layout > nav a:hover { color: var(--text); }
.public-help-group { margin-bottom: 40px; scroll-margin-top: 106px; }
.public-help-group h2 { padding-bottom: 18px; font-size: 22px; font-weight: 600; }
.public-help-group details { border-top: 1px solid var(--line); }
.public-help-group summary { display: flex; justify-content: space-between; gap: 24px; padding: 22px 0; font-size: 15px; line-height: 1.6; list-style: none; cursor: pointer; }
.public-help-group summary::-webkit-details-marker { display: none; }
.public-help-group summary::after { content: '+'; color: var(--muted); flex: none; }
.public-help-group [open] summary::after { content: '−'; }
#platform-shell .public-help-group details p { max-width: 65ch; padding: 0 30px 22px 0; color: var(--muted); font-size: 14px; line-height: 1.9; }
@media (max-width: 1100px) {
  .public-desktop-nav { gap: 16px; }
  .public-header-inner { gap: 20px; }
  .public-account { display: none; }
  .public-footer { margin-inline: 24px; }
  .public-flow-diagram { gap: 8px; flex-wrap: wrap; }
}
@media (max-width: 850px) {
  .public-desktop-nav { display: none; }
  .public-menu-toggle { display: inline-flex; }
  .public-header-inner { min-height: 72px; padding-block: 12px; }
  .public-usage-list > section { grid-template-columns: 30px 1fr; }
  .public-step-visual { grid-column: 2; }
  .public-help-layout { grid-template-columns: 160px minmax(0, 1fr); gap: 30px; }
}
@media (max-width: 600px) {
  .public-header-inner { padding-inline: 20px; gap: 10px; }
  .public-brand { gap: 8px; font-size: 17px; }
  .public-brand img { width: 25px; height: 30px; }
  .public-header-actions { gap: 8px; }
  .public-header-actions .public-action { min-height: 42px; padding: 10px 12px; font-size: 12px; }
  .public-header-actions .public-action svg { display: none; }
  .public-menu-toggle { width: 42px; height: 42px; }
  .public-main { width: calc(100% - 40px); }
  .public-kicker { margin-bottom: 18px; }
  .public-action { padding: 12px 16px; }
  .public-footer { width: calc(100% - 40px); margin-inline: 20px; flex-direction: column; gap: 24px; padding-block: 28px; }
  .public-footer nav { justify-content: flex-start; gap: 0 22px; }
  .public-page-intro { padding-block: 42px 32px; }
  .public-page-intro h1 { font-size: 38px; }
  .public-page-intro .public-kicker { margin-bottom: 18px; }
  .public-usage-list > section { grid-template-columns: 1fr; gap: 18px; padding-block: 30px; }
  .public-step-visual { grid-column: auto; min-height: 180px; padding: 20px; }
  .public-usage-list h2 { font-size: 23px; }
  .public-usage-note { padding: 22px; margin-block: 20px 40px; }
  .public-help-layout { grid-template-columns: 1fr; gap: 32px; }
  .public-help-layout > nav { flex-direction: row; flex-wrap: wrap; gap: 16px; border-bottom: 1px solid var(--line); }
  .public-help-group { margin-bottom: 28px; }
}
@media (prefers-reduced-motion: reduce) { .public-main { scroll-behavior: auto; } }