:root { --bitmap-header-height: 91px; }
.portal_header { border-bottom: 1px solid var(--line); }
.portal_header .portal_subnav::before { content: ''; position: absolute; height: 12px; left: 0; right: 0; top: -12px; }
.app { min-height: 0; border-bottom: 1px solid var(--line); scroll-margin-top: var(--bitmap-header-height); }
.sidebar, .workspace { height: calc(100dvh - var(--bitmap-header-height)); min-height: 540px; }
.sidebar .product-name { margin-top: 0; }
.workspace-footer .about-link { color: #555; white-space: nowrap; }
.workspace-footer .about-link:hover { color: #ed0036; }
dialog #infoTitle { font-size: 33px; line-height: 1.2; letter-spacing: -1.3px; margin: 18px 0; }
.bitmap-about { max-width: 1180px; margin: 0 auto; padding: 82px 40px 28px; scroll-margin-top: var(--bitmap-header-height); }
.about-eyebrow { font-size: 10px; font-weight: 700; letter-spacing: 1.7px; color: #777; }
.bitmap-about h1 { font-size: clamp(30px, 4vw, 50px); line-height: 1.14; letter-spacing: -1.8px; font-weight: 800; margin: 18px 0 22px; }
.bitmap-about h2 { font-size: 22px; line-height: 1.35; letter-spacing: -.6px; margin: 0 0 16px; }
.bitmap-about p, .bitmap-about li { font-size: 14px; line-height: 1.9; color: #565656; }
.bitmap-about p { margin: 0 0 15px; }
.bitmap-about .about-lead { max-width: 800px; font-size: 17px; line-height: 1.85; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; margin-top: 48px; }
.bitmap-about ol { padding-left: 19px; margin: 0; }
.bitmap-about li { padding-left: 4px; margin-bottom: 8px; }
.bitmap-about p a { color: #181818; text-decoration: underline; text-underline-offset: 3px; text-decoration-color: #bbb; }
.bitmap-about a:hover { color: #ed0036; }
.about-methods { border-block: 1px solid var(--line); margin-top: 36px; padding: 40px 0 26px; display: grid; grid-template-columns: 1fr 1.4fr; gap: 64px; }
.about-methods h2 { font-size: 30px; margin-top: 14px; letter-spacing: -1px; }
.about-faq { margin: 40px 0; max-width: 880px; }
.about-faq details { border-bottom: 1px solid var(--line); }
.about-faq summary { cursor: pointer; font-size: 14px; font-weight: 700; line-height: 1.6; padding: 17px 0; }
.about-faq details p { padding: 0 22px 8px 0; }
.about-faq summary::marker { color: #999; }
.about-footer { display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid var(--line); padding-top: 25px; font-size: 11px; color: #777; }
@media(max-width:1260px) {
  :root { --bitmap-header-height: 87px; }
  .portal_header nav#portal_navigation { justify-content: flex-start; max-height: calc(100dvh - var(--bitmap-header-height) - 24px); overflow-y: auto; overscroll-behavior: contain; }
  .portal_header nav#portal_navigation > * { flex-shrink: 0; }
  .portal_header .portal_nav_group:hover .portal_subnav, .portal_header .portal_nav_group:focus-within .portal_subnav { transform: none; }
  .portal_header .portal_subnav::before { display: none; }
}
@media(max-height:780px) and (min-width:761px) {
  .sidebar { padding-top: 16px; padding-bottom: 12px; }
  .brand p { margin-bottom: 12px; }
  .control-section { margin-top: 12px; }
  .adjustment-section, .export-section { padding-top: 10px; }
  .slider-label { margin-top: 8px; }
  input[type=range] { margin: 4px 0 6px; }
  .method-label { margin-top: 10px; }
  .palette { margin: 9px 0; }
  .check-row { margin-top: 8px; }
  .export-size { margin-bottom: 8px; }
  .utility-buttons { margin-top: 9px; }
}
@media(max-width:760px) {
  .sidebar { height: auto; min-height: 0; }
  .workspace { height: 63dvh; min-height: 360px; }
  .brand .product-name { width: 100%; }
  .bitmap-about { padding: 44px 22px 24px; }
  .bitmap-about h1 { letter-spacing: -1px; }
  .bitmap-about .about-lead { font-size: 15px; }
  .about-grid, .about-methods { grid-template-columns: 1fr; gap: 24px; }
  .about-grid { margin-top: 30px; }
  .about-methods { margin-top: 24px; padding-top: 28px; }
  .about-methods h2 { font-size: 27px; }
  .about-faq { margin: 28px 0; }
}
@media(max-width:620px) { :root { --bitmap-header-height: 73px; } }