:root{--paper:#f0eddf;--ink:#203b35;--muted:#42584e;--line:rgba(32,59,53,.27);--accent:#294d40;--serif:Baskerville,'Iowan Old Style','Palatino Linotype',Palatino,Georgia,'Noto Serif','Droid Serif',serif;--sans:'Helvetica Neue',Helvetica,Arial,'Segoe UI',Roboto,'Microsoft YaHei','Noto Sans CJK SC','Noto Sans SC',sans-serif;--ease:cubic-bezier(.22,.75,.18,1);}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{isolation:isolate;font-family:var(--sans);color:var(--ink);background:var(--paper);overflow:hidden;-webkit-font-smoothing:antialiased}
button,input,select{font:inherit;color:inherit}
button{border:0;background:none;cursor:pointer}
a{color:inherit;text-decoration:none}
button,a,input,select{-webkit-tap-highlight-color:transparent}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:7px}
button{touch-action:manipulation}
[hidden]{display:none!important}
.eyebrow{font-size:9px;letter-spacing:.18em;line-height:1.5;color:var(--muted)}
.grain{display:none}
.navigation{height:88px;position:fixed;inset:0 0 auto;z-index:60;display:flex;align-items:center;justify-content:space-between;padding:0 5vw;background:transparent}
.brand{font:18px var(--serif);letter-spacing:.12em;display:flex;align-items:center;gap:8px}
.brand-mark{font-size:25px}
.brand-en{font-size:8px;letter-spacing:.11em;margin-left:12px;color:var(--muted)}
.mode-switch{position:absolute;left:50%;transform:translateX(-50%);display:flex;gap:32px}
.mode-switch button{position:relative;font-size:13px;letter-spacing:.12em;min-height:44px;color:var(--muted)}
.mode-switch small{font-size:8px;letter-spacing:0;vertical-align:super;margin-left:3px}
.mode-switch .active{color:var(--ink)}
.mode-switch .active:after{content:'';width:4px;height:4px;border-radius:50%;background:var(--accent);position:absolute;bottom:1px;left:40%}
#indexBtn,#addSingle{font-size:11px;min-height:44px;letter-spacing:.06em}
#indexBtn span{margin-left:8px;color:var(--muted)}
#addSingle span{font-size:18px;margin-left:10px}
#indexPanel{max-height:calc(100svh - 118px);overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;position:fixed;right:36px;top:70px;width:280px;padding:8px;background:#f9f8f3;border:1px solid var(--line);box-shadow:0 20px 40px #00000012;z-index:65;opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .2s,transform .3s var(--ease),visibility .3s}
#indexPanel.open{opacity:1;visibility:visible;transform:none}
#indexPanel button{width:100%;display:flex;justify-content:space-between;align-items:center;min-height:44px;padding:0 10px;font-size:12px;text-align:left}
#indexPanel button.current{background:var(--ink);color:var(--paper)}
#indexPanel button:not(.current):hover{background:#24221e08}
#indexPanel small{opacity:.55}
.heart{font:22px var(--sans);width:38px;min-height:42px;flex-shrink:0;color:var(--muted);transition:color .2s,transform .2s}
.heart[aria-pressed=true]{color:var(--accent)}
.heart:hover{transform:scale(1.15);color:var(--accent)}
/* Side B: a record sleeve and an editorial track index. */
#singles{position:fixed;inset:110px 0 65px;overflow:auto;overscroll-behavior:contain;padding:20px 8vw 30px;opacity:0;visibility:hidden;transform:translateY(20px);transition:opacity .4s,transform .65s var(--ease),visibility .4s;scrollbar-width:thin}
.singles-mode #singles{opacity:1;visibility:visible;transform:none}
.singles-header{display:flex;justify-content:space-between;gap:24px;align-items:flex-end;padding-bottom:12px}
.singles-header h1{font:500 clamp(32px,3vw,44px)/1.3 var(--serif);letter-spacing:.08em;margin:0}
.singles-header h1 em{font-style:normal}
.title-star{display:inline-block;margin-left:20px;font:normal .7em var(--sans);color:var(--accent);vertical-align:10%}
.singles-header>p{font-size:11px;line-height:1.9;color:var(--muted);margin-bottom:4px;letter-spacing:.06em}
.singles-layout{display:grid;grid-template-columns:minmax(270px,.85fr) minmax(380px,1.15fr);gap:7vw;padding:33px 0 44px}
.single-feature{position:sticky;top:22px;align-self:start;min-width:0}
.sleeve-scene{position:relative;height:clamp(230px,24vw,340px);margin:2px 0 25px;isolation:isolate}
.sleeve{position:absolute;left:3%;top:7%;width:67%;aspect-ratio:1;transform:rotate(-3deg);box-shadow:2px 14px 20px #24221e20;background:#d3cbb7;z-index:2;transition:transform .65s var(--ease)}
.sleeve-scene:hover .sleeve{transform:translateX(-4px) rotate(-10deg)}
.sleeve img{width:100%;height:100%;object-fit:cover;display:block}
.sleeve:after{content:'';position:absolute;inset:0;box-shadow:inset 3px 0 3px #ffffff33,inset -1px 0 2px #00000033;pointer-events:none}
.sleeve-sticker{position:absolute;right:-12px;top:16px;background:var(--accent);color:#f7efe4;font-size:10px;letter-spacing:.13em;line-height:1.35;border-radius:50%;width:62px;height:62px;display:flex;align-items:center;justify-content:center;text-align:center;transform:rotate(10deg)}
.vinyl{position:absolute;left:30%;top:5%;width:68%;aspect-ratio:1;border-radius:50%;background:repeating-radial-gradient(circle,#20201e 0 1px,#30302c 1.5px 2px,#1e1f1c 2.5px 3px);box-shadow:4px 14px 22px #24221e20;transition:transform .7s var(--ease)}
.vinyl:before{content:'';position:absolute;inset:0;border-radius:50%;background:conic-gradient(from 35deg,transparent,#ffffff12 14%,transparent 27%,transparent 52%,#ffffff18 64%,transparent 78%)}
.vinyl:after{content:'';position:absolute;left:48.5%;top:48.5%;width:3%;height:3%;border-radius:50%;background:var(--paper);z-index:2}
.vinyl-label{position:absolute;inset:34%;border-radius:50%;background:var(--accent);font-size:8px;color:#f7efe4;display:flex;align-items:center;justify-content:center;letter-spacing:.1em;transform:rotate(20deg)}
.sleeve-scene:hover .vinyl{transform:translateX(8px) rotate(20deg)}
.feature-foot{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-top:12px}
.single-feature h2{font:500 clamp(25px,2.6vw,38px)/1.3 var(--serif);margin:14px 0 7px;overflow-wrap:anywhere}
.single-feature>p:not(.collection-note){font-size:11px;color:var(--muted);line-height:1.7}
.feature-actions{display:flex;justify-content:space-between;align-items:center;margin-top:21px;font-size:11px;gap:12px}
.feature-actions a{border-bottom:1px solid var(--ink);padding-bottom:6px}
.feature-actions button{min-height:40px;color:var(--muted)}
.feature-actions button[aria-pressed=true]{color:var(--accent)}
.collection-note{font-size:10px;line-height:1.8;color:var(--muted);margin-top:22px;white-space:pre-line}
.collection-tabs{display:flex;gap:26px;border-bottom:1px solid var(--line)}
.collection-tabs button{font-size:15px;padding:0 0 17px;color:var(--muted);position:relative}
.collection-tabs sup{font-size:10px;vertical-align:super;margin-left:4px}
.collection-tabs .active{color:var(--ink)}
.collection-tabs .active:after{content:'';position:absolute;bottom:-1px;height:2px;left:0;right:0;background:var(--accent)}
.list-tools{display:flex;gap:16px;align-items:center;justify-content:space-between;margin:17px 0 22px}
.search{display:flex;gap:8px;align-items:center;flex:1;min-width:0}
.search>span{font-size:22px;color:var(--muted)}
.search input{width:100%;min-width:0;font-size:11px;border:0;background:none;padding:8px 0;outline-offset:2px}
.search input::placeholder{color:var(--muted)}
.list-tools select{font-size:10px;border:0;background:transparent;max-width:130px;padding:8px 0;cursor:pointer}
.index-label{display:flex;justify-content:space-between;font-size:8px;letter-spacing:.16em;color:var(--muted);padding-bottom:12px;border-bottom:1px solid var(--line)}
.single-rows{list-style:none}
.single-row{display:flex;align-items:center;border-bottom:1px solid var(--line);position:relative;transition:background .2s}
.single-row.selected{background:#24221e04}
.single-row.selected:before{content:'';position:absolute;left:-14px;top:50%;width:5px;height:5px;border-radius:50%;background:var(--accent)}
.select-song{display:flex;align-items:center;gap:19px;flex:1;min-width:0;min-height:81px;text-align:left;padding-right:12px}
.song-no{font:italic 15px var(--serif);color:var(--muted);width:22px;flex-shrink:0}
.song-text{min-width:0;display:flex;flex-direction:column;gap:7px}
.song-text strong{font:500 clamp(18px,1.8vw,27px)/1.25 var(--serif);transition:translate .3s var(--ease)}
.select-song:hover .song-text strong{translate:4px 0}
.song-text small{font-size:9px;color:var(--muted);line-height:1.4}
.song-time{font-size:10px;color:var(--muted);font-variant-numeric:tabular-nums;margin-right:8px}
.index-footer{display:flex;justify-content:space-between;gap:10px;font-size:8px;letter-spacing:.12em;color:var(--muted);padding:20px 0}
.empty-state{text-align:center;padding:45px 12px}
.empty-state>span{font-size:40px;color:var(--accent)}
.empty-state h2{font:26px var(--serif);margin:16px 0}
.empty-state p{font-size:11px;line-height:1.8;color:var(--muted)}
.empty-state button{margin-top:22px;border-bottom:1px solid var(--ink);padding-bottom:8px;font-size:12px}
.singles-footer{display:none}
.singles-footer i{font-style:normal;color:var(--accent);margin:0 8px}
#customSleeve{width:100%;height:100%;background:#c8b998;padding:20px;display:flex;flex-direction:column;justify-content:space-between}
#customSleeve>span{font-size:11px;line-height:1.4;letter-spacing:.15em}
#customInitial{font:90px var(--serif);line-height:1;text-align:center}
#customSleeve small{font-size:7px;letter-spacing:.1em}
/* A real form, independent of playback and browser storage availability. */
dialog{position:fixed;inset:0;margin:auto;width:min(450px,calc(100% - 32px));max-height:calc(100svh - 40px);overflow:auto;border:1px solid var(--line);padding:30px;background:var(--paper);color:var(--ink);box-shadow:0 30px 90px #00000026}
dialog::backdrop{background:#25231f66;backdrop-filter:blur(4px)}
.dialog-top{display:flex;justify-content:space-between;align-items:center}
.dialog-top button{font-size:26px;min-width:36px;min-height:36px}
dialog h2{font:36px var(--serif);margin:25px 0 12px}
dialog form>p{font-size:11px;line-height:1.8;color:var(--muted)}
dialog label{display:block;font-size:11px;margin-top:22px}
dialog label>span{color:var(--muted);margin-left:6px}
dialog input{display:block;width:100%;border:0;border-bottom:1px solid var(--line);background:none;border-radius:0;padding:12px 0;font-size:14px}
dialog label small{display:block;color:var(--muted);font-size:9px;margin-top:8px}
.submit-song{width:100%;display:flex;justify-content:space-between;background:var(--ink);color:var(--paper);padding:16px;margin-top:22px;font-size:12px}
.save-note{display:block;text-align:center;font-size:9px;color:var(--muted);margin-top:12px}
#formError{color:var(--accent);margin-top:10px}
#loader{position:fixed;inset:0;background:var(--paper);z-index:200;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:20px;pointer-events:none;transition:opacity .4s,visibility .4s}
#loader>div{font:italic 90px var(--serif)}
#loader i{font-style:normal;margin:0 8px}
#loader.done{opacity:0;visibility:hidden}
#toast{position:fixed;bottom:26px;left:50%;max-width:calc(100vw - 32px);transform:translate(-50%,10px);background:var(--ink);color:var(--paper);padding:12px 22px;border-radius:30px;font-size:11px;line-height:1.6;z-index:250;opacity:0;pointer-events:none;transition:opacity .2s,transform .3s}
#toast.show{opacity:1;transform:translate(-50%,0)}
@media(min-width:1500px){
.singles-layout{gap:9vw}
.sleeve-scene{height:360px;max-width:500px}
.single-feature{max-width:500px}
.select-song{min-height:94px}}
@media(max-width:1000px){
.brand-en{display:none}
.navigation{padding:0 26px}
.singles-header>p{display:none}
.singles-layout{gap:5vw;grid-template-columns:minmax(230px,.8fr) minmax(300px,1.2fr)}
#singles{padding:28px 4vw 0}
.title-star{margin-left:10px}
.single-row .song-text strong{font-size:20px}
.index-footer>span:last-child{display:none}
.sleeve-scene{height:250px}
.select-song{gap:12px}}
@media(max-width:700px){
.navigation{height:70px;padding:0 20px}
.brand{font-size:11px;gap:4px}
.brand-mark{font-size:22px}
.mode-switch{gap:18px;left:57%}
.mode-switch button{font-size:12px}
.mode-switch small{display:none}
#indexBtn,#addSingle{font-size:10px}
#indexBtn>span:first-child{display:none}
#addSingle{max-width:56px;line-height:1.7}
#addSingle span{margin-left:2px;font-size:13px}
#indexPanel{right:20px;top:64px}
.heart{width:30px;font-size:20px}
#singles{inset:70px 0 0;padding:27px 24px 0}
.singles-header{padding-bottom:25px}
.singles-header h1{font-size:33px;line-height:1.4;margin-top:12px;letter-spacing:0}
.singles-header .eyebrow{font-size:8px}
.title-star{font-size:25px;margin-left:5px}
.singles-layout{grid-template-columns:1fr;gap:30px;padding-top:26px}
.single-feature{position:relative;top:auto;display:grid;grid-template-columns:44% 1fr;column-gap:20px;align-items:start}
.sleeve-scene{grid-column:1;grid-row:1 / 6;height:165px;margin:0;align-self:center}
.sleeve{width:75%;left:0;top:13%}
.vinyl{width:75%;left:25%;top:12%}
.sleeve-sticker{width:38px;height:38px;font-size:7px;top:8px;right:-8px}
.feature-foot{grid-column:2;font-size:8px;padding-top:9px}
.feature-foot>.eyebrow{font-size:7px}
.feature-foot>span:last-child{display:none}
.single-feature h2{grid-column:2;font-size:23px;margin:12px 0 6px}
.single-feature>p:not(.collection-note){grid-column:2;font-size:9px}
.feature-actions{grid-column:2;flex-wrap:wrap;gap:4px;font-size:10px;margin-top:9px}
.feature-actions button{min-height:32px}
.collection-note{grid-column:1 / -1;font-size:9px;margin-top:17px;line-height:1.7}
.collection-tabs{gap:28px}
.collection-tabs button{font-size:14px}
.select-song{min-height:81px;gap:12px}
.single-row .song-text strong{font-size:23px}
.song-text small{font-size:9px}
.list-tools{gap:10px}
.song-time{margin-right:7px}
.song-no{font-size:13px;width:20px}
.index-footer{font-size:8px}
.singles-footer{font-size:8px;letter-spacing:.03em;gap:15px}
.singles-footer>span:first-child{max-width:120px}
#customSleeve{padding:12px}
#customSleeve>span{font-size:7px}
#customInitial{font-size:45px}
#customSleeve small{font-size:5px}}
@media(prefers-reduced-motion:reduce){
*,*:before,*:after{animation:none!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}
/* Shared gallery composition. */
.painting-background{position:fixed;inset:0;z-index:-2;pointer-events:none;background:url('assets/seine-at-giverny-1897.webp') center 52% / cover no-repeat}
.painting-background:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(246,244,229,.86),rgba(246,244,229,.57) 38%,rgba(246,244,229,.12) 80%);transition:background .5s}
.singles-mode .painting-background:after,.playlists-mode .painting-background:after,.detail-open .painting-background:after{background:linear-gradient(90deg,#f6f4e5bb,#f6f4e5c9 55%,#f6f4e599)}
.artwork-credit{position:fixed;right:32px;bottom:22px;z-index:55;font:14px/1.6 var(--serif);color:var(--ink);text-shadow:0 1px 6px #fff9}
.artwork-credit a{display:flex;align-items:baseline;gap:7px}.artwork-credit a:before{content:"";width:20px;height:1px;background:currentColor;flex:0 0 20px;align-self:center;margin-right:5px}.artwork-credit cite,.artwork-credit .artist-year{white-space:nowrap;word-break:keep-all;overflow-wrap:normal}
.artwork-credit cite{font-style:normal}
.mode-switch small,.feature-foot,.index-footer>span:empty{display:none}
@media(max-width:700px){
.navigation{height:72px;padding:0 22px}
.brand{font:14px var(--serif);letter-spacing:.03em}
.mode-switch{left:54%;gap:20px}
.mode-switch button{font-size:12px;letter-spacing:0}
.painting-background{background-position:58% center}
.painting-background:after{background:linear-gradient(180deg,#f6f4e5c4,#f6f4e533 60%,#f6f4e57a)}
.artwork-credit{bottom:19px;right:22px;font-size:12px}
.artwork-credit a{gap:4px}
#singles{inset:90px 0 60px;padding:20px 26px 30px}
.singles-header{padding-bottom:12px}
.singles-header h1{font-size:30px;margin:0}
.singles-layout{padding-top:20px}
}

/* Album artwork is shared by every view of a song. */
.track-cover{display:block;width:46px;height:46px;object-fit:cover;flex:0 0 46px;background:#dedccc;border:1px solid #26372f16;border-radius:2px}
.single-row .track-cover{width:48px;height:48px;flex-basis:48px}
.album-tracks .track-cover{width:32px;height:32px;flex-basis:32px}
.song-picker .track-cover{width:36px;height:36px;flex-basis:36px}
.missing-cover{font:9px/1.5 var(--sans);display:flex;align-items:center;justify-content:center;text-align:center;color:var(--muted)}
.edit-single{font-size:10px;display:block;margin-top:15px;border-bottom:1px solid var(--line);padding-bottom:6px;color:var(--muted)}
#songCoverInput{font-size:11px;padding:10px 0}
@media(max-width:700px){
 .select-song{gap:10px}.song-no{width:16px}.single-row .track-cover{width:40px;height:40px;flex-basis:40px}.single-row .song-text strong{font-size:19px}.song-text small{font-size:8px}
 .collection-tabs{gap:20px}.collection-tabs button{font-size:12px;white-space:nowrap}.collection-tabs sup{font-size:9px;margin-left:2px}
 .mix-track>.track-cover{width:34px;height:34px;flex-basis:34px}.mix-track-info strong{font-size:17px}.mix-track{gap:8px}.edit-single{grid-column:2;margin-top:10px}
 .album-tracks .track-cover{width:27px;height:27px;flex-basis:27px}
}