/* Layout: brand header band, then one browsing column — folders and photos share a list / small grid / large grid switch */
:root{
  --teal:#005263; --sky:#29ABE2;
  --bg:#F3F7F9; --surface:#FFFFFF; --fg:#0D2830; --muted:#5A7480; --line:#DCE6EA;
  --chip:#E6F3F9; --accent:#005263; --accent-2:#1A8FC2; --shade:rgba(0,40,50,.08);
  --header:#FFFFFF; --on-accent:#FFFFFF;
  --f-display:"Montserrat",ui-sans-serif,system-ui,sans-serif;
  --f-body:"Nunito Sans",ui-sans-serif,system-ui,sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0A1A1F; --surface:#10262D; --fg:#E6F1F4; --muted:#8FA9B2; --line:#1E3A43;
  --chip:#123744; --accent:#29ABE2; --accent-2:#5CC3EE; --shade:rgba(0,0,0,.35); --header:#0D2128; --on-accent:#06222b;
  color-scheme:dark}}

*{box-sizing:border-box}
html,body{background:var(--bg);margin:0}
body{color:var(--fg);font-family:var(--f-body);font-size:15px;line-height:1.45;-webkit-font-smoothing:antialiased;padding-bottom:env(safe-area-inset-bottom,0px)}
.gutter{padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.wrap{max-width:1080px;margin:0 auto}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--sky);outline-offset:2px}

/* header */
.top{position:sticky;top:0;z-index:5;background:var(--header);border-bottom:1px solid var(--line);padding-top:env(safe-area-inset-top,0px)}
.top .wrap{display:flex;align-items:center;gap:12px;padding-block:10px}
.home{display:block;line-height:0}
.logo{height:40px;width:auto;display:block}
.logo.dark{display:none}
@media (prefers-color-scheme:dark){.logo.light{display:none}.logo.dark{display:block}}
.app-name{margin-left:auto;font-family:var(--f-display);font-weight:600;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-2);text-align:right;line-height:1.3}

/* toolbar */
main .wrap{display:flex;flex-direction:column;gap:14px;padding-block:16px 40px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:4px;font-size:13px;color:var(--muted);min-width:0}
.crumbs:empty{display:none}
.crumbs a{color:var(--accent-2);font-weight:600;text-decoration:none}
.crumbs .sep{opacity:.5}
h1{margin:0;font-family:var(--f-display);font-weight:700;font-size:clamp(22px,5.4vw,30px);line-height:1.15;letter-spacing:-.01em;text-wrap:balance;overflow-wrap:anywhere}
.count{font-size:13px;color:var(--muted);margin-top:4px;font-variant-numeric:tabular-nums}
.tools{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.search{flex:1 1 220px;min-width:0;position:relative}
.search input{width:100%;border:1px solid var(--line);background:var(--surface);color:var(--fg);border-radius:10px;padding:10px 12px 10px 36px;font:inherit;font-size:16px}
.search svg{position:absolute;left:11px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--muted)}
.seg{display:inline-flex;background:var(--chip);border-radius:10px;padding:3px;gap:2px;flex:0 0 auto}
.seg button{border:0;background:transparent;border-radius:8px;padding:7px 11px;display:flex;align-items:center;gap:6px;cursor:pointer;color:var(--muted);font-family:var(--f-display);font-weight:600;font-size:12px}
.seg button svg{width:16px;height:16px}
.seg button[aria-pressed="true"]{background:var(--surface);color:var(--accent);box-shadow:0 1px 3px var(--shade)}
@media (max-width:420px){.seg button span{display:none}.seg button{padding:8px 12px}}

.section-label{font-family:var(--f-display);font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin:18px 0 10px}
.section-label:first-child{margin-top:4px}

/* list view */
.items.list{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.items.list .item{display:flex;align-items:center;gap:12px;padding:10px 12px;border:0;border-bottom:1px solid var(--line);background:none;text-align:left;cursor:pointer;width:100%}
.items.list .item:last-child{border-bottom:0}
.items.list .item:hover{background:var(--chip)}
.items.list .thumb{width:56px;height:56px;flex:0 0 56px;border-radius:8px}
.items .meta{min-width:0;flex:1}
.items.list .name{font-weight:600;overflow-wrap:anywhere}
.items.list .sub{font-size:12.5px;color:var(--muted)}
.items .chev{display:none;color:var(--muted);flex:0 0 auto}
.items.list .chev{display:block}

/* galleries */
.items.small,.items.large{display:grid;gap:8px}
.items.small{grid-template-columns:repeat(auto-fill,minmax(104px,1fr))}
.items.large{grid-template-columns:1fr;gap:18px}
@media (min-width:700px){.items.small{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}.items.large{grid-template-columns:repeat(2,1fr)}}
.items.small .item,.items.large .item{border:0;padding:0;background:none;cursor:pointer;text-align:left;display:flex;flex-direction:column;gap:6px;min-width:0}
.items.small .thumb{aspect-ratio:1;width:100%;border-radius:8px}
.items.large .thumb{aspect-ratio:3/2;width:100%;border-radius:12px}
.items.small .name{font-size:12.5px;font-weight:600;line-height:1.25;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.items.small .sub{display:none}
.items.small{row-gap:14px}
.items.small .photo .name{font-weight:500;color:var(--muted);overflow-wrap:anywhere}
.items.large .name{font-weight:600}
.items.large .sub{font-size:12.5px;color:var(--muted)}

.thumb{position:relative;overflow:hidden;background:var(--chip);max-width:100%}
.thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .25s,transform .3s;pointer-events:none;-webkit-user-drag:none;user-select:none}
.thumb img.on{opacity:1}
.thumb .ph{position:absolute;inset:0;display:grid;place-items:center;color:var(--accent-2)}
.thumb .ph svg{width:40%;max-width:44px;height:auto;opacity:.7}
.items.small .item:hover .thumb img,.items.large .item:hover .thumb img{transform:scale(1.03)}
.badge{position:absolute;left:6px;bottom:6px;background:rgba(0,40,50,.72);color:#fff;font-size:11px;font-weight:600;padding:2px 7px;border-radius:999px;display:flex;align-items:center;gap:4px;font-variant-numeric:tabular-nums}
.items.list .badge{display:none}
.badge svg{width:11px;height:11px}

/* states */
.note{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px;display:flex;flex-direction:column;gap:8px}
.note h2{margin:0;font-family:var(--f-display);font-size:16px}
.note p{margin:0;color:var(--muted)}
.note button{align-self:flex-start;background:var(--accent);color:var(--on-accent);border:0;border-radius:9px;padding:9px 14px;font-family:var(--f-display);font-weight:600;font-size:13px;cursor:pointer}
.skel{background:linear-gradient(90deg,var(--chip) 0%,var(--line) 50%,var(--chip) 100%);background-size:200% 100%;animation:sh 1.2s infinite linear}
@keyframes sh{to{background-position:-200% 0}}
@media (prefers-reduced-motion:reduce){.skel{animation:none}.thumb img{transition:none}}

/* lightbox */
.lb{position:fixed;inset:0;z-index:20;background:#030E12;color:#fff;overflow:hidden;overscroll-behavior:contain}
.lb[hidden]{display:none}
/* The photo fills the whole screen in any orientation and is never cropped (contain). */
.lb-stage{position:absolute;inset:0;touch-action:pan-y;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}
.lb-stage img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;display:block;opacity:0;transition:opacity .2s;-webkit-user-drag:none}
.lb-stage img.on{opacity:1}
.shield{position:absolute;inset:0}
/* Controls float over the photo and fade out so the photo gets the full screen. */
.lb-bar,.lb-foot,.lb-nav{transition:opacity .25s}
.lb-bar{position:absolute;top:0;left:0;right:0;z-index:2;display:flex;align-items:center;gap:10px;
  padding:calc(10px + env(safe-area-inset-top,0px)) calc(14px + env(safe-area-inset-right,0px)) 28px calc(14px + env(safe-area-inset-left,0px));
  background:linear-gradient(rgba(3,14,18,.75),rgba(3,14,18,0))}
.lb-title{flex:1;min-width:0;font-size:13px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-shadow:0 1px 2px rgba(0,0,0,.6)}
.lb-title small{display:block;font-weight:400;color:#c3d6dd;font-variant-numeric:tabular-nums}
.icon-btn{background:rgba(3,14,18,.55);border:0;color:#fff;width:40px;height:40px;border-radius:10px;display:grid;place-items:center;cursor:pointer;flex:0 0 auto;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.icon-btn:hover{background:rgba(3,14,18,.8)}
.icon-btn svg{width:20px;height:20px}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);z-index:2}
.lb-prev{left:calc(12px + env(safe-area-inset-left,0px))}.lb-next{right:calc(12px + env(safe-area-inset-right,0px))}
@media (hover:none){.lb-nav{display:none}}
.lb-foot{position:absolute;left:0;right:0;bottom:0;z-index:2;display:flex;justify-content:center;
  padding:24px 14px calc(12px + env(safe-area-inset-bottom,0px));background:linear-gradient(rgba(3,14,18,0),rgba(3,14,18,.6));pointer-events:none}
.lb-foot .counter{font-size:12px;color:#c3d6dd;font-variant-numeric:tabular-nums;text-shadow:0 1px 2px rgba(0,0,0,.6)}
.lb.ui-off .lb-bar,.lb.ui-off .lb-foot,.lb.ui-off .lb-nav{opacity:0;pointer-events:none}
.lb.ui-off{cursor:none}
/* Phones turned sideways: very little height, so drop the hint line entirely. */
@media (orientation:landscape) and (max-height:500px){.lb-foot{display:none}.lb-bar{padding-bottom:18px}}
@media (prefers-reduced-motion:reduce){.lb-bar,.lb-foot,.lb-nav,.lb-stage img{transition:none}}
footer{font-size:12px;line-height:1.5;color:var(--muted);padding-block:0 28px}
footer .wrap{border-top:1px solid var(--line);padding-top:14px}
footer p{margin:0}
footer .version{margin-top:8px;font-variant-numeric:tabular-nums;opacity:.8}