/* finesse · denser photograph wall / gentle ambient float · existing HEYTEA identity · 2026-10-31 */
:root { --sidebar-width: 238px; }
html { min-width: 0; }
.app-layout { min-height: 100svh; }
.sidebar { position: fixed; top: 0; left: 0; z-index: 20; width: var(--sidebar-width); height: 100dvh; display: flex; flex-direction: column; padding: 29px 23px 19px; border-right: 1px solid var(--line); background: var(--paper); overflow-y: auto; }
.sidebar-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.sidebar .brand { font-size: 29px; gap: 9px; white-space: nowrap; }
.sidebar .brand-mark { width: 27px; height: 27px; }
.sidebar-caption { color: var(--muted); font-size: 10px; letter-spacing: 4px; margin: 15px 0 33px 37px; }
.sidebar-toggle { display: none; }
.sidebar-navigation { display: flex; flex-direction: column; gap: 8px; }
.sidebar-link { display: flex; align-items: center; gap: 12px; min-height: 49px; padding: 11px 13px; color: var(--muted); border: 1px solid transparent; border-radius: 2px; font-size: 13px; white-space: nowrap; }
.sidebar-link .icon { width: 18px; height: 18px; }
.sidebar-link:hover { color: var(--ink); background: var(--hover-surface); }
.sidebar-link[aria-current="page"] { color: var(--on-accent); background: var(--ink); border-color: var(--ink); }
.nav-count { margin-left: auto; font-size: 10px; opacity: .7; }
.sidebar-search { margin-top: 33px; }
.search-context { display: block; font-size: 10px; color: var(--muted); margin: 0 0 9px 1px; }
.sidebar .search-box { width: 100%; min-height: 44px; margin: 0; padding: 9px 10px; gap: 7px; }
.sidebar .search-box:focus-within { outline: 1px solid var(--ink); outline-offset: 2px; }
.sidebar .search-box input:focus-visible { outline: none; }
.sidebar-footer { margin-top: auto; padding-top: 36px; }
.sidebar-footer > img { display: block; width: 91px; height: auto; opacity: .8; margin: 0 0 15px; }
.sidebar-footer > p { font-family: var(--hand); font-size: 23px; line-height: 1.4; margin: 0 0 20px; }
.sidebar-footer > a { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; font-size: 10px; color: var(--muted); }
.sidebar-footer > a:hover { color: var(--ink); }
.sidebar-footer .icon { width: 12px; height: 12px; }
.app-content { min-width: 0; min-height: 100svh; margin-left: var(--sidebar-width); padding: 27px 30px 22px; }
.app-content:focus { outline: none; }
.collection-header { display: flex; justify-content: space-between; align-items: flex-end; gap: 22px; padding-bottom: 18px; margin-bottom: 23px; border-bottom: 1px solid var(--line); }
.collection-header > div { min-width: 0; }
.collection-eyebrow { margin: 0 0 9px; font-size: 10px; color: var(--muted); letter-spacing: 3px; }
#collection-title { margin: 0; font-size: 45px; line-height: 1.1; font-weight: 400; letter-spacing: 0; }
#collection-title:focus { outline: none; }
.collection-description { font-size: 12px; line-height: 1.8; color: var(--muted); margin: 10px 0 0; }
.collection-count { font-size: 11px; color: var(--muted); white-space: nowrap; flex-shrink: 0; margin: 0 0 5px; }
.collection-tools { display: flex; flex-direction: column; align-items: flex-end; gap: 7px; flex-shrink: 0; }
.motion-toggle { display: inline-flex; align-items: center; gap: 7px; min-height: 36px; padding: 5px 10px; border: 1px solid var(--line); border-radius: 2px; background: transparent; color: var(--muted); font-size: 10px; white-space: nowrap; }
.motion-toggle:hover:not(:disabled) { border-color: var(--ink); color: var(--ink); }
.motion-toggle:disabled { cursor: default; }
.motion-dot { width: 5px; height: 5px; border: 1px solid currentColor; border-radius: 50%; }
.motion-toggle[aria-pressed="true"] .motion-dot { background: currentColor; }
.collection-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 20px 17px; align-items: stretch; }
.collection-card { display: flex; min-width: 0; width: 100%; padding: 0; border: 0; background: transparent; text-align: left; }
.collection-surface { display: flex; flex-direction: column; width: 100%; min-width: 0; padding: 6px; border: 1px solid var(--photo-line); border-radius: 2px; background: var(--photo-white); box-shadow: 0 3px 10px var(--shadow-close); animation: photo-float var(--float-duration, 7s) var(--float-delay, 0s) ease-in-out infinite; transition: box-shadow .25s; }
.collection-photo { position: relative; display: block; width: 100%; aspect-ratio: 1.08; overflow: hidden; background: var(--image-fallback); }
.collection-photo img { width: 100%; height: 100%; display: block; object-fit: cover; object-position: center 36%; }
.collection-card[data-id="persian"] .collection-photo img,
.collection-card[data-id="siberian"] .collection-photo img,
.collection-card[data-id="norwegian-forest"] .collection-photo img,
.collection-card[data-id="devon-rex"] .collection-photo img { object-position: center 12%; }
.collection-card[data-image-source="user-provided"] .collection-photo img { object-position: center 32%; }
.classification-tag { position: absolute; left: 6px; top: 6px; padding: 4px 6px; color: var(--ink); background: var(--photo-white); border: 1px solid var(--line); font-size: 9px; line-height: 1.3; }
.image-caution-tag { position: absolute; left: 6px; bottom: 6px; padding: 4px 6px; color: var(--ink); background: var(--photo-white); border: 1px solid var(--line); font-size: 9px; line-height: 1.3; }
.detail-image-provenance { color: var(--muted); font-size: 11px; line-height: 1.8; padding: 5px 3px 0; margin: 0; }
.cover-image-note { font-size: 11px; letter-spacing: 0; }
.detail-photo > img[data-source="user-provided"],
.detail-photo > img[data-source="generated"] { height: clamp(260px, 52vh, 500px); object-fit: contain; object-position: center; }
.collection-copy { position: relative; display: flex; flex: 1; flex-direction: column; padding: 12px 7px 11px; min-width: 0; }
.collection-english { display: block; font-size: 9px; line-height: 1.5; letter-spacing: .2px; color: var(--muted); margin: 0 0 6px; }
.collection-card-title { display: block; font-family: var(--hand); font-size: 26px; font-weight: 400; line-height: 1.16; color: var(--ink); padding-right: 14px; text-wrap: balance; }
.collection-card.has-long-title .collection-card-title { font-size: 22px; }
.collection-subtitle { display: block; color: var(--muted); font-size: 10px; line-height: 1.7; margin-top: 7px; }
.collection-arrow { position: absolute; right: 2px; top: 35px; width: 13px; height: 13px; color: var(--muted); }
.collection-card:focus-visible { outline: 2px solid var(--ink); outline-offset: 5px; }
@keyframes photo-float { 0%, 100% { transform: translateY(3px); } 50% { transform: translateY(-3px); } }
.collection-grid[data-motion="paused"] .collection-surface,
.dialog-open .collection-surface,
.collection-card:focus-within .collection-surface { animation-play-state: paused; }
@media(hover:hover) and (pointer:fine) { .collection-card:hover .collection-surface { animation-play-state: paused; box-shadow: 0 7px 20px -7px var(--shadow-lift); } }
.collection-empty { min-height: 55svh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; color: var(--muted); }
.collection-empty h2 { font-family: var(--hand); color: var(--ink); font-size: 36px; font-weight: 400; margin: 0 0 12px; }
.collection-empty p { font-size: 13px; line-height: 1.8; }
.collection-footer { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px 24px; border-top: 1px solid var(--line); margin-top: 30px; padding-top: 10px; font-size: 11px; color: var(--muted); }
.collection-footer a { display: inline-flex; align-items: center; gap: 7px; min-height: 44px; }
.collection-footer .icon { width: 12px; height: 12px; }
#cover-view .intro { margin: 17px auto 7px; max-width: 740px; }
#cover-view .intro h1 { font-size: clamp(45px, 4.8vw, 69px); }
#cover-view .stage { height: 420px; }
#cover-view .gallery { margin-inline: 0; }
.cover-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; max-width: 750px; margin: 38px auto 0; }
.cover-links > a { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; min-width: 0; border-top: 1px solid var(--line); padding: 22px 3px; }
.cover-links > a > span:first-child { font-size: 10px; color: var(--muted); letter-spacing: 2px; }
.cover-links strong { font-family: var(--hand); font-size: 32px; font-weight: 400; }
.cover-links > a > span:last-child { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; min-height: 44px; }
.cover-links > a:hover { border-color: var(--ink); }
.cover-links .icon { width: 13px; height: 13px; }
@media(min-width:1800px) { .collection-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); } }
@media(max-width:1350px) { .collection-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
@media(max-width:1200px) {
 :root { --sidebar-width: 218px; }
 .sidebar { padding-inline: 18px; }
 .app-content { padding: 29px 28px 20px; }
 .collection-grid { gap: 20px 15px; }
 #cover-view .intro-sketch { width: 135px; }
}
@media(max-width:1100px) { .collection-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media(max-width:880px) {
 .sidebar { position: sticky; top: 0; width: 100%; height: auto; max-height: 80dvh; padding: 12px 22px; border-right: 0; border-bottom: 1px solid var(--line); }
 .sidebar .brand { font-size: 27px; }
 .sidebar-caption, .sidebar-footer { display: none; }
 .sidebar-toggle { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 9px 12px; min-height: 44px; background: transparent; border: 1px solid var(--line); border-radius: 2px; font-size: 12px; }
 .sidebar-navigation { margin: 12px 0 7px; }
 .sidebar[data-menu-open="false"] .sidebar-navigation { display: none; }
 .sidebar-search { margin-top: 10px; }
 .search-context { display: none; }
 .sidebar .search-box input { font-size: 12px; }
 .app-content { margin-left: 0; padding: 27px 23px 18px; }
 #collection-title { font-size: 42px; }
 #cover-view .intro { margin: 15px auto 20px; }
 #cover-view .intro h1 { font-size: clamp(42px, 7.3vw, 62px); }
}
@media(max-width:600px) {
 .sidebar { padding: 9px 17px 11px; }
 .sidebar .brand { font-size: 25px; }
 .app-content { padding: 21px 15px 14px; }
 .collection-header { align-items: flex-start; padding-bottom: 17px; margin-bottom: 20px; gap: 10px; }
 #collection-title { font-size: 36px; }
 .collection-eyebrow { font-size: 9px; letter-spacing: 2px; margin-bottom: 10px; }
 .collection-description { font-size: 11px; margin-top: 9px; }
 .collection-tools { padding-top: 20px; gap: 2px; }
 .collection-count { font-size: 10px; }
 .motion-toggle { min-height: 44px; padding: 5px 7px; font-size: 9px; }
 .collection-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 12px; }
 .collection-surface { padding: 5px; }
 .collection-photo { aspect-ratio: 1.02; }
 .collection-copy { padding: 10px 4px 9px; }
 .collection-card-title { font-size: 24px; padding-right: 0; }
 .collection-english { font-size: 9px; overflow-wrap: anywhere; }
 .collection-subtitle, .collection-arrow { display: none; }
 #cover-view .intro h1 { font-size: clamp(34px, 10.2vw, 60px); }
 #cover-view .intro-sketch { width: 100px; }
 #cover-view .stage { height: 325px; }
 #cover-view .gallery { margin-inline: -10px; }
 .cover-links { grid-template-columns: minmax(0, 1fr); gap: 1px; margin-top: 27px; }
 .cover-links strong { font-size: 30px; }
 .cover-links > a { padding-block: 19px; gap: 9px; }
 .collection-footer { font-size: 10px; }
}
@media(max-width:360px) { .collection-card-title { font-size: 21px; } }
@media(prefers-reduced-motion:reduce) { .collection-surface { animation: none; transition: none; transform: none; } }