:root{font-family:system-ui,-apple-system,'Noto Sans JP',sans-serif;color:#17362b;background:#f2f5ef;font-size:16px;--green:#174b3a;--line:#d7e1d9}*{box-sizing:border-box}body{margin:0}header{padding:20px max(18px,calc((100vw - 1040px)/2));background:white;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}header a{font-size:20px;font-weight:750;letter-spacing:.1em;color:var(--green);text-decoration:none}small{font-size:11px;letter-spacing:.12em;color:#688171}main{max-width:1040px;margin:auto;padding:22px 16px 120px}h1{font-size:29px;letter-spacing:-.04em;margin:8px 0 14px}h2{font-size:20px;margin:6px 0 14px}h3{font-size:16px;margin:0 0 8px}p{line-height:1.7}button,input,select,textarea{font:inherit}button,.link{border:1px solid var(--line);border-radius:8px;padding:11px 15px;background:white;color:var(--green);cursor:pointer;min-height:44px}button:hover{border-color:#50846a}button.primary{background:var(--green);color:white;border-color:var(--green)}button:disabled{opacity:.5;cursor:default}.danger{color:#a93d28}.muted{color:#63786c;font-size:13px}.card{background:white;border:1px solid var(--line);border-radius:14px;padding:18px;margin:14px 0}.row{display:flex;gap:9px;align-items:center;flex-wrap:wrap}.spread{justify-content:space-between}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px}label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:#536c5f}input,textarea,select{min-width:0;width:100%;padding:11px 9px;border:1px solid #c9d6cc;border-radius:7px;background:#fcfdfb;color:#17362b}input[type=range]{padding:0;accent-color:var(--green)}input[type=file]{font-size:13px}textarea{min-height:80px}.tabbar{display:flex;gap:7px;padding:0 0 18px;overflow:auto}.tabbar button.active{background:#dceade;border-color:#a7c6b0}.track{padding:12px 0;border-bottom:1px solid #e6ece6;display:flex;justify-content:space-between;gap:10px}.track:last-child{border:0}.track p{margin:2px 0;font-size:13px;color:#61766a}.track button{padding:7px 11px}.num{font-variant-numeric:tabular-nums}.item{background:#f7f9f5;border:1px solid var(--line);border-radius:10px;padding:14px;margin:11px 0}.item .grid{grid-template-columns:repeat(4,minmax(0,1fr));margin-top:12px}.item input,.item select{font-size:14px;padding:9px 5px}.player{border:2px solid #75a38b;background:#f9fcf7}.player progress{width:100%;height:13px;accent-color:var(--green)}.player .now{font-size:21px;font-weight:700;margin:14px 0 5px}.pill{border-radius:20px;background:#e8efe5;padding:5px 11px;font-size:12px;display:inline-block}.note{display:block;width:100%;text-align:left;margin:8px 0}.error{color:#9c3826}.login{max-width:420px;margin:70px auto}.login button{width:100%;margin-top:16px}#message{position:fixed;bottom:18px;left:50%;transform:translateX(-50%);background:#183c2e;color:white;box-shadow:0 3px 22px #0003;border-radius:10px;padding:12px 18px;max-width:92vw;z-index:10;display:none}#message.visible{display:block}.hidden,[hidden]{display:none!important}a{color:var(--green)}hr{border:0;border-top:1px solid var(--line);margin:20px 0}details{margin:12px 0}summary{cursor:pointer;padding:10px 0}.full{width:100%}@media(max-width:600px){header{padding:16px}header a{font-size:17px}h1{font-size:26px}.card{padding:15px}.row button{flex-grow:1}.track .row button{flex-grow:0}.item .grid{grid-template-columns:repeat(2,minmax(0,1fr))}.player .now{font-size:19px}.tabbar button{white-space:nowrap;padding:10px 12px}}
:root{--tab-height:78px}
html{scroll-padding-bottom:calc(var(--tab-height) + env(safe-area-inset-bottom) + 24px)}
main{padding-bottom:calc(var(--tab-height) + env(safe-area-inset-bottom) + 40px)}
header,main,#view,.card,.track-info{min-width:0}
h1,h2,h3,strong,p,.muted{overflow-wrap:anywhere}
button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #a26821;outline-offset:3px}
h1:focus{outline:none}
.tabbar{position:fixed;bottom:0;left:0;right:0;z-index:5;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;overflow:visible;padding:8px max(8px,calc((100vw - 1040px)/2)) calc(8px + env(safe-area-inset-bottom));background:#fffffff5;border-top:1px solid var(--line);box-shadow:0 -4px 20px #17362b08}
.tabbar button{min-width:0;min-height:54px;padding:8px 5px;border-color:transparent;background:transparent;font-size:13px;font-weight:650;line-height:1.5;white-space:normal;overflow-wrap:normal}
.tabbar button.active{background:#174b3a;border-color:#174b3a;color:#fff}
.eyebrow{display:block;font-size:11px;font-weight:700;letter-spacing:.13em;color:#63786c;margin-top:22px}
.album-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:22px 0}
.album-card{display:flex;flex-direction:column;align-items:flex-start;gap:10px;min-width:0;padding:14px;text-align:left;border-radius:14px}
.album-card strong,.album-card .muted{width:100%;overflow-wrap:anywhere}
.album-art{display:grid;place-items:center;width:100%;aspect-ratio:1.6;background:linear-gradient(135deg,#e5eee0,#c9dbcd);border-radius:8px;color:#406b53;font-size:34px}
.album-card:nth-child(3n+2) .album-art{background:linear-gradient(135deg,#efe8da,#e4d5bc);color:#806443}
.album-card:nth-child(3n) .album-art{background:linear-gradient(135deg,#e0e9ed,#c6d8e0);color:#4b707e}
.unknown-albums{margin-top:32px;padding-top:22px;border-top:1px solid var(--line)}
.unknown-albums .album-art{background:#e9ece7;color:#68736a}
.track-list{padding-top:5px;padding-bottom:5px}
.track-select{align-items:center;justify-content:flex-start;text-align:left;border:0;border-bottom:1px solid #e6ece6;border-radius:0;background:transparent;padding:16px 0;gap:12px}
.track-select:hover{background:#f5f8f2}
.track-number{flex:0 0 26px;font-size:13px;color:#63786c;text-align:center}
.track-info{flex:1}
.track-meta{display:block;margin-top:4px;font-size:12px;line-height:1.6;color:#63786c;overflow-wrap:anywhere}
.track-meta.error{color:#9c3826}
.track-action{flex:0 0 auto;font-size:12px}
.track-form{display:grid;gap:18px}
.search-label{margin-top:24px}
.command{padding:14px 12px;border-radius:8px;background:#f2f5ef;font-size:13px;line-height:1.8;overflow:auto}
#uploadprogress{width:100%;accent-color:var(--green)}
#message{bottom:calc(var(--tab-height) + env(safe-area-inset-bottom) + 12px)}
@media(max-width:600px){
 .tabbar button{font-size:12px;padding:8px 4px;white-space:normal}
 .album-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
 .album-card{padding:12px;gap:9px}
 .album-card strong{font-size:14px;line-height:1.5}
 .album-card .muted{font-size:11px;line-height:1.6}
 .grid{grid-template-columns:repeat(auto-fit,minmax(min(170px,100%),1fr))}
 .row>*{min-width:0;max-width:100%}
 .track-select{gap:8px}
 header small{display:none}
 .login{margin:35px auto}
}

.track-number small{display:block;font-size:10px;white-space:nowrap;color:var(--muted)}

/* Keep time controls legible and tappable on iPhone. */
.item .time-actions{margin-top:12px}
.item [aria-invalid="true"]{border:2px solid #a12d21;background:#fff5f1}
.item [data-time-error]{font-weight:600;margin:10px 0;scroll-margin-bottom:110px}
@media(max-width:600px){.item input,.item select{font-size:16px;min-height:44px}.time-actions button{font-size:14px;min-height:44px}.item .grid label{line-height:1.5}}

/* Theme improvisation: independent UI keeps the existing editor intact. */
body[data-improv] main{margin:0 auto;max-width:1100px;padding:20px}
body[data-improv] input[type=checkbox]{width:auto;display:inline-block;margin-right:8px}
body[data-improv] label{display:block;margin:10px 0}
body[data-improv] select{max-width:100%;padding:10px;border:1px solid #bac8bf;border-radius:8px;background:white;color:#173e30}
.improv-entry{border-top:1px solid #d7ded8;padding:16px 0}
.improv-controls{display:flex;flex-wrap:wrap;gap:12px;align-items:end}
.improv-controls label{max-width:160px;flex:1 1 105px}
.improv-picker{max-height:320px;overflow:auto}
.improv-choice{display:flex;flex-wrap:wrap;gap:10px;border-bottom:1px solid #ddd;padding:8px}
.improv-choice span{flex:1 1 200px}
#preview-links{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}
#improv-message{white-space:pre-wrap;padding:8px}
@media(max-width:600px){body[data-improv] main{padding:12px}body[data-improv] .panel{padding:15px}body[data-improv] .form-grid{display:grid;grid-template-columns:1fr 1fr}.improv-controls label{max-width:none}}