/* Hallmark · pre-emit critique: P4 H5 E4 S4 R4 V5 */
/* Hallmark · macrostructure: Marquee Hero, adapted to a searchable creative library
   Coral palette retained · navigation: top bar as requested · footer: Ft2
   Generated still-life hero is decorative, not a collected case image. */
.app-shell { display: block; }
.workspace-main { width: 100%; min-width: 0; }
.topbar.site-header { display: block; padding: 0; min-height: 0; position: sticky; top: 0; z-index: 10; background: var(--color-surface); color: var(--color-ink); }
.header-inner { max-width: 1488px; margin-inline: auto; display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: center; gap: 0 16px; padding: 16px 20px 0; }
.site-brand.brand { display: flex; align-items: center; gap: 10px; padding: 0; width: fit-content; font-size: 27px; font-weight: 700; line-height: 1.1; letter-spacing: -.065em; }
.site-brand .brand-en { display: block; font-size: 8px; letter-spacing: .16em; font-weight: 500; margin-top: 5px; }
.site-brand .brand-mark { display: block; width: 29px; height: 34px; position: relative; transform: rotate(-12deg); }
.site-brand .brand-mark i { display: block; position: absolute; width: 10px; height: 28px; background: var(--color-accent); top: 3px; left: 2px; border-radius: 2px; }
.site-brand .brand-mark i:nth-child(2) { transform: rotate(55deg); left: 12px; }
.site-brand .brand-mark i:nth-child(3) { width: 8px; height: 8px; left: 23px; top: 24px; }
.header-actions { grid-column: 2; grid-row: 1; display: flex; align-items: center; justify-content: flex-end; gap: 20px; }
.header-actions .button { min-height: 40px; padding: 8px 12px; font-size: 11px; }
.header-actions .preview-badge { display: none; }
.top-navigation { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: 12px; min-width: 0; }
.top-nav-item { display: flex; align-items: center; gap: 5px; min-height: 48px; padding: 12px 0; position: relative; font-size: 11px; color: var(--color-neutral); line-height: 1; }
.top-nav-item.active { color: var(--color-accent); font-weight: 600; }
.top-nav-item.active::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px; background: var(--color-accent); }
.nav-beta { display: none; font-family: var(--font-mono); font-size: 8px; line-height: 1; margin-left: 1px; color: var(--color-accent); }
.favorite-count { display: none; font-size: 10px; color: var(--color-muted); }
main { max-width: 1488px; padding: 20px 16px 32px; }
#main, .ai-results { scroll-margin-top: 144px; }
.home-hero.ai-banner { display: block; position: relative; padding: 0; border-radius: 16px; background: var(--color-hero-paper); color: var(--color-ink); overflow: hidden; min-height: 620px; margin: 0 0 36px; isolation: isolate; }
.hero-art { position: absolute; inset: auto 0 0; width: 100%; height: 320px; object-fit: cover; object-position: right bottom; z-index: -2; }
.home-hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg,var(--color-hero-paper) 0%,var(--color-hero-paper) 43%,var(--color-clear) 73%); z-index: -1; }
.hero-content { padding: 32px 24px 0; max-width: 640px; }
.hero-intro { display: flex; align-items: center; gap: 8px; font-size: 11px; color: var(--color-neutral); margin-bottom: 16px; }
.hero-intro > span { width: 6px; height: 6px; background: var(--color-accent); border-radius: 50%; }
.home-hero h1 { font-size: clamp(34px, 7vw, 52px); font-weight: 650; line-height: 1.35; letter-spacing: -.05em; }
.home-hero h1 .accent-period { margin-left: 0; }
.hero-description { font-size: 12px; line-height: 1.9; color: var(--color-neutral); margin-top: 16px; }
.hero-search { display: flex; align-items: center; gap: 6px; padding: 5px; margin-top: 24px; border: 1px solid var(--color-rule); border-radius: 10px; background: var(--color-surface); color: var(--color-ink); box-shadow: 0 4px 20px var(--color-shadow); }
.hero-search > [data-icon] { display: none; color: var(--color-muted); }
.hero-search input { width: 0; flex: 1; min-width: 0; border: 1px solid transparent; height: 44px; font-size: 11px; padding: 8px; background: var(--color-surface); color: var(--color-ink); }
.hero-search .button { min-height: 44px; width: 44px; padding: 10px; flex: 0 0 auto; }
.search-button-label { display: none; }
.hero-topics { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; margin-top: 12px; }
.hero-topics > span { display: none; font-size: 10px; color: var(--color-muted); }
.hero-topics button { display: inline-flex; align-items: center; min-height: 44px; font-size: 11px; color: var(--color-neutral); border-radius: 4px; padding: 8px 4px; }
.hero-topics button + button::before { content: '/'; color: var(--color-muted); margin-right: 12px; }
.hero-bottom { position: absolute; bottom: 16px; left: 24px; right: 24px; display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; font-size: 9px; }
.hero-demo { background: var(--color-hero-tag); color: var(--color-neutral); padding: 4px 8px; border-radius: 4px; }
.hero-art-credit { background: var(--color-hero-tag); color: var(--color-neutral); padding: 4px 8px; border-radius: 4px; }
.library-heading { align-items: flex-end; margin-bottom: 16px; }
.library-heading h2 { font-size: 24px; letter-spacing: -.035em; line-height: 1.4; font-weight: 650; }
.library-heading p { font-size: 12px; margin-top: 8px; }
.library-total { display: none; align-items: center; gap: 6px; font-size: 11px; color: var(--color-muted); white-space: nowrap; padding-bottom: 4px; }
.library-total svg { width: 14px; height: 14px; }
.category-tabs { gap: 24px; }
.category-tab { min-height: 52px; padding-bottom: 8px; }
.case-grid { gap: 32px 24px; }
.card-title { font-size: 15px; }
.page-footer { margin-top: 48px; padding-block: 20px 12px; }
.ai-workspace { padding-top: 12px; }
.toast { bottom: 24px; }
@media (hover: hover) and (pointer: fine) {
  .top-nav-item:hover, .hero-topics button:hover { color: var(--color-accent); }
}
@media (min-width: 40rem) {
  .header-inner { padding-inline: 32px; }
  .header-actions .preview-badge { display: inline-flex; }
  .header-actions .button { min-height: 44px; font-size: 12px; }
  .top-navigation { justify-content: flex-start; gap: 36px; }
  .top-nav-item { font-size: 13px; }
  .nav-beta, .favorite-count { display: inline; }
  main { padding: 24px 32px 40px; }
  .home-hero.ai-banner { min-height: 480px; margin-bottom: 40px; }
  .hero-art { inset: 0; height: 100%; object-position: 65% center; }
  .home-hero::before { background: linear-gradient(90deg,var(--color-hero-paper) 0%,var(--color-hero-paper) 20%,var(--color-clear) 75%); }
  .hero-content { padding: 40px; width: 70%; }
  .hero-intro { margin-bottom: 16px; }
  .home-hero h1 { font-size: 44px; }
  .hero-description { font-size: 13px; }
  .mobile-break { display: none; }
  .hero-search { margin-top: 24px; }
  .hero-search > [data-icon] { display: inline-flex; margin-left: 12px; }
  .hero-search input { padding-left: 4px; font-size: 12px; }
  .hero-search .button { width: auto; padding-inline: 16px; }
  .search-button-label { display: inline; }
  .hero-topics > span { display: inline; }
  .hero-bottom { left: 40px; right: 24px; bottom: 20px; }
  .library-total { display: inline-flex; }
  .library-heading h2 { font-size: 26px; }
}
@media (min-width: 60rem) {
  #main, .ai-results { scroll-margin-top: 112px; }
  .header-inner { display: flex; min-height: 88px; gap: 48px; padding: 16px 40px; }
  .site-brand.brand { flex: 0 0 auto; font-size: 29px; }
  .top-navigation { margin: 0; gap: 32px; flex: 1; min-height: 56px; }
  .top-nav-item { font-size: 13px; padding-block: 20px; min-height: 56px; }
  .top-nav-item.active::after { bottom: 4px; height: 2px; }
  .header-actions { flex: 0 0 auto; gap: 20px; }
  main { padding: 28px 40px 48px; }
  .home-hero.ai-banner { min-height: 476px; border-radius: 20px; margin-bottom: 44px; }
  .hero-content { padding: 44px 48px; width: 61%; max-width: 720px; }
  .hero-intro { margin-bottom: 16px; font-size: 11px; }
  .home-hero h1 { font-size: clamp(48px,4.3vw,64px); line-height: 1.28; }
  .hero-description { margin-top: 16px; font-size: 13px; }
  .hero-search { margin-top: 28px; }
  .hero-search input { font-size: 12px; }
  .hero-topics { margin-top: 8px; }
  .hero-bottom { left: 48px; }
  .hero-art { object-position: center; }
  .home-hero::before { background: linear-gradient(90deg,var(--color-hero-paper) 0%,var(--color-clear) 68%); }
  .library-heading { margin-bottom: 20px; }
  .library-heading h2 { font-size: 28px; }
  .category-tabs { gap: 32px; }
  .case-grid { grid-template-columns: repeat(3,minmax(0,1fr)); gap: 36px 28px; }
  .case-grid.is-list { grid-template-columns: minmax(0,1fr); }
  .ai-workspace { padding-top: 36px; }
}
@media (min-width: 85rem) {
  .header-inner { gap: 64px; }
  .top-navigation { gap: 40px; }
  .home-hero.ai-banner { min-height: 520px; }
  .hero-content { padding: 52px 64px; width: 57%; }
  .hero-description { font-size: 14px; }
  .hero-bottom { left: 64px; bottom: 24px; }
  .hero-search { margin-top: 32px; }
}
@media (prefers-reduced-motion: reduce) {
  .site-brand .brand-mark { transform: rotate(-12deg); }
}