:root {
  --bg:#0f172a; --surface:#1e293b; --border:#334155;
  --text:#f1f5f9; --muted:#94a3b8; --accent:#3b82f6;
  --danger:#f87171; --star:#facc15;
  --safe-b:env(safe-area-inset-bottom,0px);
  --safe-t:env(safe-area-inset-top,0px);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}
body{background:var(--bg);color:var(--text);font-family:-apple-system,"Hiragino Kaku Gothic ProN",sans-serif;min-height:100dvh}

/* Setup */
#setup{display:flex;align-items:center;justify-content:center;min-height:100dvh;padding:24px}
.setup-card{background:var(--surface);border-radius:16px;padding:32px 24px;max-width:400px;width:100%}
.setup-card h1{font-size:1.25rem;margin-bottom:8px}
.setup-card p{color:var(--muted);font-size:.875rem;line-height:1.7;margin-bottom:24px}
.setup-card code{background:var(--bg);border-radius:4px;padding:2px 5px;font-size:.8em}
.label{font-size:.78rem;color:var(--muted);margin-bottom:6px}
.inp{width:100%;background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:12px;color:var(--text);font-size:.95rem;outline:none;margin-bottom:4px;appearance:none}
textarea.inp{font-family:monospace;font-size:.85rem;resize:vertical;min-height:80px}
.btn{width:100%;padding:14px;border-radius:10px;border:none;font-size:1rem;font-weight:600;cursor:pointer;background:var(--accent);color:#fff;margin-top:12px}
.btn:active{opacity:.8}
.err{color:var(--danger);font-size:.8rem;margin-top:8px;padding:8px 10px;background:rgba(248,113,113,.1);border-radius:6px;display:none}
.err.show{display:block}

/* App */
#app{display:none;padding-bottom:calc(60px + var(--safe-b))}
/* sticky + backdrop-filter は iOS Safari でスクロール中に下の要素を点滅させるため、ほぼ不透明な単色背景にする（元々.92不透明で見た目はほぼ同じ） */
.header{position:sticky;top:0;background:rgb(15,23,42);padding:calc(14px + var(--safe-t)) 16px 14px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border);z-index:100}
.header h1{font-size:1.05rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1}
.hbtn{background:none;border:none;color:var(--muted);cursor:pointer;font-size:.82rem;padding:4px 8px;border-radius:6px;white-space:nowrap}
.hbtn:active{background:var(--surface)}
/* 選択モード中のキャンセル(✕)はタップしやすいよう大きめに */
#selectBtn.cancel{font-size:1.3rem;line-height:1;padding:4px 12px;color:var(--text)}
.back-btn{background:none;border:none;color:var(--accent);cursor:pointer;font-size:.9rem;padding:4px 8px 4px 0;margin-right:4px;display:none}

/* States */
.loading{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:80px 24px;color:var(--muted);gap:16px;text-align:center}
.spinner{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.empty{padding:60px 24px;text-align:center;color:var(--muted);font-size:.9rem;line-height:1.8}

/* Photo grid */
/* content-visibility: 画面外の月グリッドはレンダリングをスキップ（buildGrid系=お気に入り/人物/ゴミ箱用） */
.photo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;content-visibility:auto;contain-intrinsic-size:auto 800px}
/* タイムラインは JS で仮想化（near-viewport の月だけ DOM 生成）するので content-visibility は使わない
   （高さを自前管理するため contain-intrinsic-size と競合させない） */
.photo-grid.vgrid{content-visibility:visible;contain-intrinsic-size:auto}
@media(min-width:600px){.photo-grid{grid-template-columns:repeat(4,1fr)}}
@media(min-width:900px){.photo-grid{grid-template-columns:repeat(5,1fr)}}
@media(min-width:1200px){.photo-grid{grid-template-columns:repeat(6,1fr)}}
@media(min-width:1600px){.photo-grid{grid-template-columns:repeat(8,1fr)}}
.thumb{aspect-ratio:1;overflow:hidden;background:#374151;cursor:pointer;position:relative;-webkit-touch-callout:none;-webkit-user-select:none;user-select:none}
/* LQIP: BlurHash を即ぼかし表示（img の裏）。img がロード完了で上に淡入りして隠す */
.thumb-lqip{position:absolute;inset:0;background-size:cover;background-position:center;z-index:0}
.thumb img{width:100%;height:100%;object-fit:cover;display:block;opacity:0;position:relative;z-index:1;-webkit-touch-callout:none;user-select:none;-webkit-user-select:none;-webkit-user-drag:none;pointer-events:none}
.thumb img.loaded{opacity:1}
.video-badge{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none;z-index:2}
.video-badge svg{filter:drop-shadow(0 1px 3px rgba(0,0,0,.6))}
.star-ind{position:absolute;bottom:4px;left:4px;color:#fff;width:20px;height:20px;display:none;align-items:center;justify-content:center;pointer-events:none;z-index:1;filter:drop-shadow(0 1px 2px rgba(0,0,0,.8))}
.star-ind.on{display:flex}
.dupe-badge{position:absolute;top:4px;left:4px;background:rgba(244,63,94,.8);color:#fff;font-size:.58rem;padding:2px 5px;border-radius:4px;pointer-events:none}

/* Timeline */
#timelineView{padding:12px}
.month-group{margin-bottom:20px}
.month-label{font-size:.82rem;color:var(--muted);font-weight:600;margin-bottom:6px;padding-bottom:5px;border-bottom:1px solid var(--border)}
/* Duplicate groups (重複のみ表示) */
.dupe-group{border:1.5px solid var(--dg);background:var(--dg-bg);border-radius:12px;padding:8px;margin-bottom:14px}
.dupe-group-hd{font-size:.74rem;color:var(--dg);font-weight:700;margin-bottom:7px;display:flex;align-items:center;gap:6px}
.dupe-group-hd .dg-dot{width:10px;height:10px;border-radius:50%;background:var(--dg);flex-shrink:0}
/* Scroll date badge */
#scrollDateBadge{position:fixed;top:54px;left:50%;transform:translateX(-50%);background:rgba(0,0,0,.62);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);color:#fff;padding:5px 16px;border-radius:20px;font-size:.8rem;font-weight:600;pointer-events:none;z-index:101;white-space:nowrap;opacity:0;transition:opacity .25s}
#scrollDateBadge.visible{opacity:1}
/* Date scrubber (Amazon Photos style) */
#dateScrubber{position:fixed;right:0;top:calc(54px + var(--safe-t));bottom:56px;width:52px;z-index:102;pointer-events:none}
#dateScrubberThumb{position:absolute;right:4px;width:26px;height:44px;background:rgba(0,0,0,.52);border-radius:13px;pointer-events:none;opacity:0;transition:opacity .3s,background .15s;touch-action:none;user-select:none;-webkit-user-select:none;cursor:grab;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px}
/* スクロール中/停止後数秒だけ表示（Amazonフォト風）。普段は非表示で右上の⋮メニューと干渉させない */
#dateScrubber.scrubbing #dateScrubberThumb{opacity:1;pointer-events:auto}
#dateScrubberThumb.drag{cursor:grabbing;background:rgba(0,0,0,.72)}
.scrub-arrow{display:block;width:9px;height:9px;border-right:2.5px solid rgba(255,255,255,.88);border-top:2.5px solid rgba(255,255,255,.88);border-radius:1px;flex-shrink:0}
.scrub-arrow.up{transform:rotate(-45deg) translate(-1px,1px)}
.scrub-arrow.down{transform:rotate(135deg) translate(-1px,1px)}
.scrub-year{position:absolute;right:36px;font-size:.67rem;font-weight:700;color:rgba(0,0,0,.48);white-space:nowrap;transform:translateY(-50%);pointer-events:none;opacity:0;transition:opacity .15s}
#dateScrubber.dragging .scrub-year{opacity:1}
#dateScrubberLabel{position:absolute;right:36px;background:rgba(0,0,0,.75);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);color:#fff;padding:3px 9px;border-radius:6px;font-size:.78rem;font-weight:600;white-space:nowrap;pointer-events:none;transform:translateY(-50%);opacity:0;transition:opacity .12s;z-index:1}
#dateScrubberLabel.visible{opacity:1}
.tl-filter-bar{display:flex;gap:8px;margin-bottom:12px}
.tl-search-row{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.tl-search-input{flex:1;min-width:0;padding:9px 14px;border-radius:22px;border:1px solid var(--border);background:var(--surface);color:var(--text,#fff);font-size:.9rem;outline:none}
.tl-search-input::placeholder{color:var(--muted)}
.tl-search-input:focus{border-color:var(--accent)}
.tl-search-clear{flex-shrink:0;width:34px;height:34px;border-radius:50%;border:1px solid var(--border);background:var(--surface);color:var(--muted);font-size:.85rem;cursor:pointer}
.filter-btn{padding:6px 12px;border-radius:20px;border:1px solid var(--border);background:none;color:var(--muted);font-size:.78rem;cursor:pointer}
.filter-btn.on{background:var(--accent);border-color:var(--accent);color:#fff}

/* Albums */
#albumsView{padding:12px}
.new-album-btn{display:flex;align-items:center;gap:8px;width:100%;padding:14px 16px;background:var(--surface);border:1px dashed var(--border);border-radius:12px;color:var(--accent);font-size:.95rem;cursor:pointer;margin-bottom:16px;justify-content:center}
.album-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
@media(min-width:600px){.album-grid{grid-template-columns:repeat(3,1fr)}}
@media(min-width:900px){.album-grid{grid-template-columns:repeat(4,1fr)}}
@media(min-width:1200px){.album-grid{grid-template-columns:repeat(5,1fr)}}
@media(min-width:1600px){.album-grid{grid-template-columns:repeat(6,1fr)}}
.album-card{background:var(--surface);border-radius:12px;overflow:hidden;cursor:pointer}
.album-card:active{opacity:.8}
.album-cover{aspect-ratio:1;overflow:hidden;background:var(--border);position:relative}
.album-cover img{width:100%;height:100%;object-fit:cover;display:block}
.album-cnt{position:absolute;bottom:6px;right:6px;background:rgba(0,0,0,.6);color:#fff;font-size:.7rem;padding:2px 6px;border-radius:10px}
.album-info{padding:8px 10px 10px}
.album-name{font-size:.88rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.no-cover{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:2rem}

/* Persons */
#personsView{padding:12px}
.person-progress{text-align:center;padding:20px;color:var(--muted);font-size:.85rem;line-height:1.8}
/* GitHub Actions section */
.gh-section{background:var(--surface);border-radius:12px;padding:14px 16px;margin-bottom:14px;border:1px solid var(--border)}
.gh-section-title{margin:0 0 10px;font-size:.9rem;font-weight:600;display:flex;align-items:center;gap:6px;color:var(--text)}
.gh-status-panel{margin-bottom:10px;min-height:20px}
.gh-btns{display:flex;gap:8px}
/* Kebab menu */
.kebab-menu{position:fixed;right:12px;top:calc(50px + var(--safe-t));background:var(--surface);border:1px solid var(--border);border-radius:12px;box-shadow:0 6px 24px rgba(0,0,0,.5);z-index:300;min-width:190px;overflow:hidden;display:none}
.kebab-menu.open{display:block}
.kebab-item{display:flex;align-items:center;gap:10px;width:100%;text-align:left;background:none;border:none;color:var(--text);padding:14px 18px;font-size:.9rem;cursor:pointer;border-bottom:1px solid var(--border)}
.kebab-item:last-child{border-bottom:none}
.kebab-item:active{background:var(--border)}
.kebab-item.danger{color:var(--danger)}
.kebab-info{padding:12px 18px;font-size:.8rem;color:var(--muted);border-bottom:1px solid var(--border);line-height:1.5;text-align:left}
.kebab-info .prog-bar{width:100%;height:4px;background:var(--border);border-radius:2px;margin-top:8px;overflow:hidden}
.kebab-info .prog-fill{height:100%;background:var(--accent);transition:width .3s}
/* Accordion group */
.kebab-group-arrow{margin-left:auto;font-size:.75rem;transition:transform .2s;color:var(--muted)}
.kebab-group-children{display:none;border-bottom:1px solid var(--border)}
.kebab-group-children.open{display:block}
.kebab-group-children .kebab-item,.kebab-group-children .kebab-info{padding-left:30px;border-bottom:1px solid var(--border)}
.kebab-group-children .kebab-item:last-child{border-bottom:none}
.kebab-group-children .kebab-info:last-child{border-bottom:none}
.person-progress .prog-bar{width:100%;height:4px;background:var(--border);border-radius:2px;margin:12px 0;overflow:hidden}
.person-progress .prog-fill{height:100%;background:var(--accent);transition:width .3s}
.person-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px 10px}
@media(min-width:600px){.person-grid{grid-template-columns:repeat(4,1fr)}}
@media(min-width:900px){.person-grid{grid-template-columns:repeat(7,1fr);gap:14px 8px}}
@media(min-width:1200px){.person-grid{grid-template-columns:repeat(9,1fr);gap:12px 6px}}
@media(min-width:1600px){.person-grid{grid-template-columns:repeat(11,1fr);gap:10px 6px}}
.person-card{background:none;cursor:pointer;text-align:center;padding:4px 2px}
.person-card:active{opacity:.7}
.person-cover,.person-avatar{aspect-ratio:1;position:relative;overflow:hidden;border-radius:50%;background:var(--border)}
.person-cover img{width:100%;height:100%;object-fit:cover;display:block}
.person-avatar{background:var(--surface)}
.person-avatar img{position:absolute;opacity:0;transition:opacity .25s}
.person-info{padding:10px 2px 0}
.person-name{font-size:.9rem;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.person-name.add{color:var(--accent);font-weight:500;font-size:.82rem}
.person-cnt{font-size:.78rem;color:var(--muted);margin-top:2px}

/* Face position overlay in lightbox */
.face-overlay{position:absolute;inset:0;pointer-events:none;z-index:2}
.face-circle{position:absolute;border:2px solid rgba(255,255,255,.9);border-radius:50%;box-shadow:0 0 0 1.5px rgba(0,0,0,.5),0 2px 8px rgba(0,0,0,.4)}
.face-label{position:absolute;top:calc(100% + 4px);left:50%;transform:translateX(-50%);white-space:nowrap;font-size:11px;color:#fff;background:rgba(0,0,0,.7);padding:2px 6px;border-radius:4px}

/* Person filter chips (timeline) */
.person-filter-row{display:flex;gap:10px;margin-bottom:14px;overflow-x:auto;padding-bottom:4px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.person-filter-row::-webkit-scrollbar{display:none}
.person-chip{display:flex;flex-direction:column;align-items:center;gap:3px;cursor:pointer;flex-shrink:0;-webkit-tap-highlight-color:transparent}
.person-chip-img{width:46px;height:46px;border-radius:50%;object-fit:cover;border:2.5px solid var(--border);transition:border-color .15s,box-shadow .15s;transform:translateZ(0)}
/* border-radius+overflow+絶対配置の子img は iOS でスクロール中に点滅する。
   独立レイヤー化(translateZ)＋フェード廃止で安定させる（チップは十数個なので軽量） */
.person-chip-face{width:46px;height:46px;border-radius:50%;overflow:hidden;position:relative;border:2.5px solid var(--border);background:var(--surface);flex-shrink:0;transition:border-color .15s,box-shadow .15s;transform:translateZ(0)}
.person-chip-face img{position:absolute;opacity:0}
.person-chip-name{font-size:.62rem;color:var(--muted);max-width:52px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;text-align:center;transition:color .15s}
.person-chip.on .person-chip-img{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}
.person-chip.on .person-chip-face{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}
.person-chip.on .person-chip-name{color:var(--accent);font-weight:600}
.person-chip-clear{width:46px;height:46px;border-radius:50%;background:var(--border);display:flex;align-items:center;justify-content:center;font-size:16px;color:var(--muted)}
.person-chip-any{width:46px;height:46px;border-radius:50%;background:var(--surface);border:2.5px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:22px;transition:border-color .15s,box-shadow .15s}
.person-chip.on .person-chip-any{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}

/* Favorites */
#favoritesView{padding:12px}

/* Pull-to-refresh indicator */
#ptr{position:fixed;top:-46px;left:50%;z-index:150;width:36px;height:36px;border-radius:50%;background:var(--surface);border:1.5px solid var(--border);display:flex;align-items:center;justify-content:center;opacity:0;transition:none;box-shadow:0 2px 8px rgba(0,0,0,.4)}
#ptr span{color:var(--accent);font-size:18px;font-weight:700;line-height:1;transition:transform .15s}
#ptr.ready span{transform:rotate(180deg)}
#ptr.spin span{animation:ptrsp .7s linear infinite}
@keyframes ptrsp{to{transform:rotate(360deg)}}

/* Bottom Nav */
.nav{position:fixed;bottom:0;left:0;right:0;background:var(--surface);border-top:1px solid var(--border);display:flex;padding-bottom:var(--safe-b);z-index:100;transform:translateZ(0);will-change:transform}
.nav-btn{flex:1;display:flex;flex-direction:column;align-items:center;padding:9px 4px 7px;gap:3px;color:var(--muted);font-size:.62rem;background:none;border:none;cursor:pointer}
.nav-btn.on{color:var(--accent)}
.nav-btn svg{width:22px;height:22px;flex-shrink:0}

/* 人物整理（写真の除外/移動） */
.edit-list{padding:0 10px}
.edit-row{display:flex;align-items:center;gap:10px;padding:10px 8px;border-radius:10px;cursor:pointer;transition:background .12s}
.edit-row:active{background:var(--border)}
.edit-row.merge-base{background:rgba(59,130,246,.15);box-shadow:0 0 0 1.5px rgba(59,130,246,.5) inset}
.edit-row.merge-dim{opacity:.38;pointer-events:none}
.edit-thumbstrip{display:flex;gap:3px;flex-shrink:0}
.edit-thumbstrip img,.edit-thumbstrip .nth{width:38px;height:38px;border-radius:6px;object-fit:cover}
.edit-thumbstrip .nth{background:var(--border);display:flex;align-items:center;justify-content:center;font-size:16px}
.edit-info{flex:1;min-width:0}
.edit-name{font-size:.86rem;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.edit-cnt{font-size:.72rem;color:var(--muted);margin-top:1px}
.edit-act-btn{flex-shrink:0;background:none;border:1px solid var(--border);border-radius:8px;color:var(--muted);font-size:.75rem;padding:6px 10px;cursor:pointer;white-space:nowrap}
.edit-act-btn:active{background:var(--border)}
.edit-to-btn{flex-shrink:0;background:rgba(59,130,246,.12);border:1px solid rgba(59,130,246,.4);border-radius:8px;color:var(--accent);font-size:.75rem;padding:6px 10px;cursor:pointer;white-space:nowrap}
.merge-banner{margin:8px 10px 4px;padding:10px 14px;background:rgba(59,130,246,.08);border:1px solid rgba(59,130,246,.3);border-radius:10px;display:flex;align-items:center;gap:8px}
.merge-banner-txt{flex:1;font-size:.82rem;color:var(--accent)}
.merge-cancel{background:none;border:none;color:var(--muted);font-size:.8rem;cursor:pointer;padding:3px 7px;border-radius:6px}
.edit-hdr-row{padding:8px 12px 2px;display:flex;align-items:center;gap:8px}
.edit-tiny{background:rgba(100,116,139,.18);border:none;border-radius:8px;color:var(--muted);font-size:.75rem;padding:5px 10px;cursor:pointer;white-space:nowrap}
.edit-tiny:active{background:var(--border)}
.edit-tiny.on{background:rgba(59,130,246,.18);color:var(--accent)}
/* Photo action sheet (tap a photo) */
#trashActionSheet{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:500;align-items:flex-end}
#trashActionSheet.open{display:flex}
.trash-bar{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:12px 14px;flex-wrap:wrap}
.trash-bar>span{font-size:.85rem;color:var(--muted)}
.trash-bar-btns{display:flex;gap:8px}
.trash-act{background:var(--surface);border:1px solid var(--border);color:var(--text);border-radius:8px;padding:8px 12px;font-size:.82rem;cursor:pointer}
.trash-act:active{background:var(--border)}
.trash-act.danger{color:var(--danger);border-color:var(--danger)}
.trash-note{padding:0 14px 10px;font-size:.74rem;color:var(--muted)}
.epa-inner{width:100%;background:var(--bg);border-radius:20px 20px 0 0;padding:16px}
.epa-btn{display:block;width:100%;padding:15px 16px;border-radius:10px;border:none;background:var(--surface);color:var(--text);font-size:.95rem;cursor:pointer;margin-bottom:6px;text-align:left}
.epa-btn:active{background:var(--border)}
.epa-btn.danger{color:var(--danger)}
/* Move-to sheet */
#editMoveSheet{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:500;align-items:flex-end}
#editMoveSheet.open{display:flex}
.edit-move-inner{width:100%;background:var(--bg);border-radius:20px 20px 0 0;padding:20px;max-height:75dvh;overflow-y:auto}

/* Lightbox */
#lb{display:none;position:fixed;inset:0;background:#000;z-index:200;flex-direction:column}
#lb.open{display:flex}
.lb-top{position:absolute;top:0;left:0;right:0;padding:max(12px,var(--safe-t)) 12px 16px;display:flex;align-items:center;gap:8px;background:linear-gradient(#000c,transparent);z-index:3}
.lb-close-btn,.lb-menu-btn,.lb-info-btn{flex:0 0 40px;height:40px;color:#fff;background:#ffffff22;cursor:pointer;border-radius:50%;display:flex;align-items:center;justify-content:center;user-select:none}
.lb-close-btn{font-size:20px}
.lb-info-btn{font-size:19px;font-style:normal}
.lb-menu-btn{font-size:22px;letter-spacing:-.1em}
.lb-counter{flex:1;text-align:center;color:#fff;font-size:14px;font-variant-numeric:tabular-nums}
.lb-menupop{position:absolute;top:calc(max(12px,var(--safe-t)) + 52px);right:12px;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 6px 26px rgba(0,0,0,.4);z-index:4;display:none;min-width:180px}
.lb-menupop.on{display:block}
.lb-menupop div{padding:14px 18px;font-size:14px;color:#333;cursor:pointer;border-bottom:1px solid #eee}
.lb-menupop div:last-child{border-bottom:none}
.lb-media{flex:1;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.lb-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;user-select:none;-webkit-user-drag:none}
.lb-media img.lb-hi{opacity:0;transition:opacity .15s}
.lb-media img.lb-hi.ready{opacity:1}
.lb-spin{position:absolute;top:50%;left:50%;margin:-20px 0 0 -20px;width:40px;height:40px;border:3px solid rgba(255,255,255,.2);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}
/* Video in lightbox */
.lb-video-wrap{position:relative;max-width:100%;max-height:100%;display:flex;align-items:center;justify-content:center}
.lb-video-wrap video{max-width:100%;max-height:calc(100dvh - 120px);object-fit:contain}
.lb-play-btn{position:absolute;width:64px;height:64px;border-radius:50%;background:rgba(0,0,0,.6);border:3px solid rgba(255,255,255,.9);display:flex;align-items:center;justify-content:center;cursor:pointer}
.lb-play-btn svg{width:28px;height:28px;fill:#fff;margin-left:4px}
.lb-bottom{position:absolute;bottom:0;left:0;right:0;padding:16px 16px calc(16px + var(--safe-b));display:flex;align-items:center;background:linear-gradient(transparent,#000c);z-index:2;pointer-events:none}
.lb-name{font-size:.78rem;color:rgba(255,255,255,.7);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;padding-left:56px}
.lb-fav-btn{position:absolute;bottom:calc(14px + var(--safe-b));left:16px;width:44px;height:44px;background:rgba(0,0,0,.5);border:none;color:rgba(255,255,255,.45);border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:3;pointer-events:auto}
.lb-fav-btn.faved{color:#fff}
.lb-fav-btn.faved path{fill:currentColor;stroke:currentColor}
/* PC専用ナビ矢印（Amazonフォト風）。タッチ端末では非表示＝スワイプを使う */
.lb-nav{display:none;position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;background:rgba(0,0,0,.45);color:#fff;font-size:32px;line-height:1;align-items:center;justify-content:center;cursor:pointer;z-index:3;user-select:none;opacity:.7;transition:opacity .15s,background .15s}
.lb-nav:hover{opacity:1;background:rgba(0,0,0,.65)}
.lb-nav-prev{left:16px;padding-right:3px}
.lb-nav-next{right:16px;padding-left:3px}
@media (hover:hover) and (pointer:fine){
  #lb.open.has-multi .lb-nav{display:flex}
}

/* Multi-select overlay */
.thumb-check{position:absolute;top:5px;right:5px;width:22px;height:22px;border-radius:50%;border:2px solid rgba(255,255,255,.85);display:none;align-items:center;justify-content:center;background:rgba(0,0,0,.35);pointer-events:none;transition:background .12s,border-color .12s;z-index:4}
.select-mode .thumb-check{display:flex}
.thumb.selected .thumb-check{background:var(--accent);border-color:var(--accent)}
.thumb.selected .thumb-check::after{content:'✓';color:#fff;font-size:13px;font-weight:700;line-height:1}
.thumb.selected::after{content:'';position:absolute;inset:0;background:rgba(59,130,246,.18);pointer-events:none;z-index:3}

/* Select action bar */
#selectBar{position:fixed;bottom:0;left:0;right:0;background:var(--surface);border-top:2px solid var(--accent);display:none;align-items:center;padding:8px 8px calc(8px + var(--safe-b));gap:4px;z-index:101;overflow-x:auto}
.sel-exit,.sel-count,.sel-act{flex-shrink:0}
#selectBar.on{display:flex}
.sel-exit{background:none;border:none;color:var(--muted);font-size:1.3rem;cursor:pointer;padding:4px 10px;line-height:1}
.sel-count{flex:0 0 auto;margin-right:auto;font-size:.85rem;font-weight:600;padding-left:2px;white-space:nowrap}
.sel-act{background:none;border:none;color:var(--text);padding:7px 10px;border-radius:8px;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:.6rem;min-width:52px}
.sel-act:active{background:var(--border)}
.sel-act.danger{color:var(--danger)}
.sel-act svg{width:20px;height:20px}

/* Photo Info Sheet */
#lbInfoSheet{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:250;align-items:flex-end}
#lbInfoSheet.open{display:flex}
.info-inner{background:var(--surface);border-radius:20px 20px 0 0;padding:20px 20px calc(20px + var(--safe-b));width:100%;max-height:80dvh;overflow-y:auto}
.info-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.info-title{font-size:1rem;font-weight:600}
.info-close{background:none;border:none;color:var(--muted);font-size:1.2rem;cursor:pointer;padding:4px 6px;line-height:1;border-radius:6px}
.info-close:active{background:var(--border)}
.info-row{display:flex;gap:12px;padding:11px 0;border-bottom:1px solid var(--border)}
.info-row:last-child{border-bottom:none}
.info-lbl{color:var(--muted);font-size:.78rem;min-width:68px;flex-shrink:0;padding-top:3px}
.info-val{color:var(--text);font-size:.875rem;word-break:break-all;flex:1;line-height:1.5}

/* Custom Video Fullscreen */
#vfs{display:none;position:fixed;inset:0;background:#000;z-index:300;flex-direction:column;align-items:center;justify-content:center}
#vfs.on{display:flex}
#vfs video{max-width:100%;max-height:calc(100dvh - 80px);object-fit:contain}
#vfsBar{position:absolute;bottom:0;left:0;right:0;padding:12px 16px calc(12px + var(--safe-b));background:linear-gradient(transparent,rgba(0,0,0,.9));display:flex;flex-direction:column;gap:8px;transition:opacity .3s}
#vfs.hidechrome #vfsBar{opacity:0;pointer-events:none}
.vfs-row{display:flex;align-items:center;gap:12px}
#vfsSeek{flex:1;height:4px;-webkit-appearance:none;appearance:none;background:rgba(255,255,255,.3);border-radius:2px;outline:none;cursor:pointer}
#vfsSeek::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:#fff;cursor:pointer}
.vfs-time{color:rgba(255,255,255,.8);font-size:.75rem;white-space:nowrap;font-variant-numeric:tabular-nums;min-width:38px}
.vfs-btn{background:none;border:none;color:#fff;cursor:pointer;padding:4px;display:flex;align-items:center;justify-content:center}
#vfsClose{position:absolute;top:max(12px,var(--safe-t));right:16px;background:rgba(255,255,255,.15);width:36px;height:36px;border-radius:50%;font-size:1.1rem}

/* Dialogs */
.overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:400;align-items:center;justify-content:center;padding:24px}
.overlay.open{display:flex}
.dialog{background:var(--surface);border-radius:16px;padding:24px;width:100%;max-width:360px}
.dialog h3{font-size:1rem;margin-bottom:16px}
.dialog-actions{display:flex;gap:10px;margin-top:16px}
.dialog-actions button{flex:1;padding:12px;border-radius:8px;border:none;font-size:.9rem;font-weight:600;cursor:pointer}
.btn-cancel{background:var(--border);color:var(--text)}
.btn-ok{background:var(--accent);color:#fff}

/* Album Sheet */
#albumSheet{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:400;align-items:flex-end}
#albumSheet.open{display:flex}
.sheet-inner{background:var(--surface);border-radius:20px 20px 0 0;padding:20px 16px calc(20px + var(--safe-b));width:100%;max-height:70dvh;overflow-y:auto}
.sheet-title{font-size:.9rem;font-weight:600;color:var(--muted);margin-bottom:12px;text-align:center}
.sheet-item{display:flex;align-items:center;gap:12px;padding:12px;border-radius:10px;cursor:pointer}
.sheet-item:active{background:var(--border)}
.sheet-thumb{width:44px;height:44px;border-radius:8px;object-fit:cover;background:var(--border);flex-shrink:0}
.sheet-item-info{flex:1;min-width:0}
.sheet-item-name{font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sheet-item-cnt{font-size:.75rem;color:var(--muted)}
.sheet-check{color:var(--accent);font-size:1.1rem}
.sheet-divider{height:1px;background:var(--border);margin:8px 0}
.sheet-new{color:var(--accent)}
.sheet-new-icon{width:44px;height:44px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;background:var(--bg);border-radius:8px;flex-shrink:0}

/* Toast */
#toast{position:fixed;bottom:calc(70px + var(--safe-b));left:50%;transform:translateX(-50%) translateY(20px);background:var(--surface);color:var(--text);padding:9px 18px;border-radius:20px;font-size:.82rem;white-space:nowrap;opacity:0;transition:opacity .2s,transform .2s;z-index:500;pointer-events:none;border:1px solid var(--border);max-width:90vw;text-overflow:ellipsis;overflow:hidden}
#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* Dupe detection progress chip (in header) */
#dupeProg{display:none;align-items:center;gap:6px;background:var(--bg);color:var(--muted);padding:3px 9px;border-radius:12px;font-size:.68rem;white-space:nowrap;border:1px solid var(--border);flex-shrink:0}
#dupeProg.show{display:flex}
#dupeProg .dp-spin{width:11px;height:11px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;flex-shrink:0;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* Person name dialog */
#personDlg .person-preview{display:flex;gap:8px;margin-bottom:16px;overflow-x:auto;padding-bottom:4px}
#personDlg .person-preview img{width:56px;height:56px;border-radius:8px;object-fit:cover;flex-shrink:0}
/* Merge person sheet */
#mergeSheet{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:500;align-items:flex-end}
#mergeSheet.open{display:flex}
#mergeSheetInner{width:100%;background:var(--bg);border-radius:20px 20px 0 0;padding:20px;max-height:80dvh;overflow-y:auto}
#mergeSheet h3{margin:0 0 6px;font-size:1rem}
#mergeSheet p{margin:0 0 16px;font-size:.82rem;color:var(--muted)}
.merge-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(72px,1fr));gap:10px}
.merge-card{display:flex;flex-direction:column;align-items:center;gap:4px;cursor:pointer;padding:6px;border-radius:10px;border:2px solid transparent}
.merge-card:active{background:var(--border)}
.merge-card-face{width:56px;height:56px;border-radius:50%;overflow:hidden;position:relative;background:var(--surface);flex-shrink:0}
.merge-card-face img{position:absolute;opacity:0;transition:opacity .2s}
.merge-card-name{font-size:.7rem;color:var(--muted);text-align:center;max-width:72px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}