:root{color-scheme:light;--bg:#f4f7fa;--surface:#fff;--ink:#193349;--muted:#50687d;--line:#cbd7e1;--blue:#185dad;--gold:#eac16f}html.dark{color-scheme:dark;--bg:#0b1d2c;--surface:#172f44;--ink:#eef4fc;--muted:#adbed0;--line:#39566e;--blue:#83baff}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}header{display:flex;align-items:center;padding:16px 5%;border-bottom:1px solid var(--line);background:var(--surface)}header>a:nth-child(2){margin-left:auto;margin-right:16px}.brand{display:flex;align-items:center;font-size:19px;font-weight:750;text-decoration:none}.brand img{margin-right:10px;border-radius:10px}main{max-width:1050px;margin:auto;padding:32px 20px 60px}h1{font-size:36px;font-size:clamp(28px,5vw,40px);line-height:1.2;margin:12px 0 22px}h2{font-size:23px}.eyebrow{font-size:13px;letter-spacing:.12em;color:var(--muted);font-weight:750}a{color:var(--blue)}button,.button{font:inherit;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:10px 16px;cursor:pointer;min-height:44px;text-decoration:none}button:disabled{opacity:.45;cursor:default}.primary{background:var(--gold);color:#102538;border-color:var(--gold);font-weight:750}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:3px}.card{border:1px solid var(--line);background:var(--surface);border-radius:18px;padding:22px;margin:20px 0}summary{font-weight:750;cursor:pointer}.muted,small{color:var(--muted)}.badge{display:inline-block;font-size:14px;border:1px solid var(--line);border-radius:20px;padding:4px 12px}.section-heading{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap}.download-card h3{margin:0;font-size:20px}.download-card p{margin:8px 0 16px}.actions{display:flex;flex-wrap:wrap}.actions>*{margin:0 8px 8px 0}.songs{list-style:none;margin:0;padding:0}.songs button{display:block;width:100%;text-align:left;margin-top:8px}.songs small{display:block}input[type=search]{width:100%;font:inherit;color:var(--ink);background:var(--surface);border:1px solid var(--line);padding:12px;border-radius:10px;margin-top:6px}#status{white-space:pre-line}footer{text-align:center;padding:20px;color:var(--muted)}[hidden]{display:none!important}.reader-nav{position:sticky;top:0;background:var(--bg);z-index:5;display:flex;align-items:center;padding:10px 0}.reader-nav>*{margin-right:8px}#close{margin-left:auto;margin-right:0;border:0;background:transparent}#position{font-size:14px}.score{font:16px/1.4 ui-monospace,SFMono-Regular,Consolas,monospace;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px;position:relative;overflow:hidden}#probe{position:absolute;visibility:hidden;white-space:pre;font:inherit;pointer-events:none}.score-row{font:inherit;white-space:pre;min-height:1.4em}.chord{color:var(--blue);font-weight:inherit}.score-group{margin-bottom:.25em}.empty{padding:24px;border:1px dashed var(--line);border-radius:14px}@media(max-width:550px){header{padding:12px}.brand{font-size:16px}header>a:nth-child(2){font-size:14px}main{padding:20px 12px 40px}.card{padding:16px}.reader-nav button{padding:8px 10px}.score{padding:10px}#position{display:none}}@supports(padding:max(0px)){body{padding-bottom:env(safe-area-inset-bottom)}header{padding-top:max(12px,env(safe-area-inset-top))}}



/* Same reading geometry as the online song view, without a network dependency. */
.reading main{max-width:980px;margin-left:144px;margin-right:24px;padding:30px 24px 60px;width:auto;min-width:0}
.reading #title{font-family:Georgia,serif;font-size:46px;line-height:1.15;overflow-wrap:anywhere;margin:18px 0}
.reading #moment{color:#b17b20;font-size:17px;letter-spacing:0;font-weight:700}.dark .reading #moment{color:#efc878}
.reading #category{margin-top:24px}.reading #download-date{font-size:12px}.reading-note{font-size:13px}
.reading .score{padding:28px;margin-top:24px;font-variant-ligatures:none}.reading-list>header{display:none}
.controls{position:fixed;left:12px;top:50%;transform:translateY(-50%);z-index:40;width:116px;max-height:calc(100vh - 100px);overflow-y:auto;-webkit-overflow-scrolling:touch;padding:10px;border:1px solid var(--line);border-radius:14px;background:var(--surface);box-shadow:0 6px 24px #173d6520;color:var(--ink)}
.controls button{padding:6px 3px;font-size:14px;min-height:42px;border-radius:7px;width:100%}.controls #collapse{font-size:12px;font-weight:600;margin-bottom:8px;min-height:44px}.controls .rail-theme{display:block;width:42px;height:42px;margin:0 auto 10px;border-radius:50%;font-size:24px;color:#bd8b31}.dark .controls .rail-theme{color:#efc878}
.tone-controls{display:grid;grid-template-columns:1fr 1fr;grid-gap:6px;text-align:center}.tone-controls strong,#original,#saved{grid-column:1/-1}#key{font-size:14px;overflow-wrap:anywhere;padding:4px 0}.scroll-controls{margin-top:10px;padding-top:10px;border-top:1px solid var(--line);text-align:center}.scroll-controls #scroll{background:var(--gold);color:#14263a;font-size:12px;padding:10px 3px}.scroll-controls label{display:block;font-size:12px;margin-top:8px}.scroll-controls input{display:block;width:100%;min-width:0;margin:8px 0;accent-color:var(--gold)}
.reader-collapsed .controls{top:auto;bottom:16px;bottom:calc(16px + env(safe-area-inset-bottom));transform:none;width:48px;padding:0;overflow:visible;border-radius:12px}.reader-collapsed #collapse{margin:0;min-height:46px;font-size:22px;border:0}.reader-collapsed main{margin-left:auto;margin-right:auto;width:100%;padding-bottom:80px}
@media(min-width:1268px){.reading main{margin-left:auto;margin-right:auto}}
@media(max-width:600px){.reading main{margin-left:101px;margin-right:8px;padding:16px 0 60px}.reading #title{font-size:28px}.reading .score{padding:10px}.controls{left:5px;width:88px;padding:6px;max-height:calc(100vh - 100px)}.controls button{font-size:12px}.tone-controls{grid-gap:4px}#key{font-size:12px}.scroll-controls label{font-size:11px}.reader-collapsed main{margin:0;padding:16px 12px 80px}.reading .reader-nav{flex-wrap:wrap}.reading .reader-nav button{font-size:12px;padding:6px}.reading .reader-nav>*{margin-right:4px}}
@media(max-height:500px) and (orientation:landscape){.controls{top:60px;transform:none;max-height:calc(100vh - 75px)}.reader-collapsed .controls{top:auto}}

/* Lightweight library: no flex-gap, :has(), backdrop filters or JS layout. */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
button:focus,a:focus,input:focus,summary:focus{outline:3px solid var(--blue);outline-offset:3px}
#library{padding-top:12px}.library-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}.library-heading h1{font-family:Georgia,serif;font-weight:700;font-size:42px;margin:0 0 10px}.library-intro{margin:0;color:var(--muted);font-size:18px}.library-state{flex-shrink:0;text-align:right;margin-left:24px}.library-state small{display:block;font-size:13px}.library-state .badge{margin:0 0 5px;color:#236d48;border-color:#a6c9b5;background:#edf8f1}.dark .library-state .badge{color:#a4e5ba;border-color:#376a52;background:#123a30}.badge:before{content:'●';margin-right:8px}.library-state .badge.disconnected{color:var(--ink);background:var(--surface);border-color:var(--line)}
.library-toolbar{display:flex;align-items:stretch;margin-bottom:18px}.search-field{position:relative;flex:1;min-width:0}.search-field>span{position:absolute;left:16px;top:9px;font-size:25px;color:var(--muted);pointer-events:none}.search-field input{margin:0;min-height:52px;padding-left:46px}.library-toolbar #refresh{margin-left:14px;min-width:150px;border-color:#b78733}.library-toolbar #refresh span{font-size:24px;line-height:1;margin-right:8px;vertical-align:middle}.library-filters{display:flex;flex-wrap:wrap;margin-bottom:18px}.library-filters button{border-radius:28px;margin:0 10px 8px 0;min-width:106px;min-height:46px}.library-filters button[aria-pressed=true]{background:var(--gold);color:#102538;border-color:var(--gold);font-weight:700}.library-filters span{margin-left:6px;font-size:12px;opacity:.8}#status:empty{display:none}#status:not(:empty),#session-note{padding:12px 16px;border:1px solid var(--line);border-radius:10px}
.download-card{padding:18px;margin:0 0 12px;border-radius:12px}.download-top{display:flex;align-items:center}.download-icon{display:flex;align-items:center;justify-content:center;width:54px;height:54px;flex:0 0 54px;border-radius:10px;background:#f6e6c3;color:#73531d;font-size:28px;margin-right:18px}.dark .download-icon{background:#3d413a;color:var(--gold)}.download-info{flex:1;min-width:0}.download-card h3{font-family:Georgia,serif;font-weight:700;font-size:21px;line-height:1.3;overflow-wrap:break-word;word-wrap:break-word}.download-card .download-meta{font-size:14px;margin:5px 0 0}.download-ready{font-size:13px;color:#287443;margin:0 20px}.dark .download-ready{color:#9ddcaf}.download-ready:before{content:'✓';display:inline-block;margin-right:7px}.download-open{min-width:112px;margin-left:12px}.download-options{margin-top:8px;text-align:right}.download-options>summary{display:inline-block;list-style:none;font-size:13px;color:var(--muted);padding:10px 2px;min-height:44px;font-weight:500}.download-options>summary::-webkit-details-marker{display:none}.download-options[open]>summary{color:var(--ink)}.download-options .actions{justify-content:flex-end;padding-top:10px;border-top:1px solid var(--line)}.download-options .muted{font-size:13px}.repertoire-details{border-top:1px solid var(--line);margin-top:4px;padding-top:8px}.repertoire-details summary{padding:8px 0;min-height:44px;font-size:14px}.songs button{min-height:54px}.library-help{margin-top:24px}.library-help>details{border:1px solid var(--line);border-radius:10px;background:var(--surface);margin-bottom:10px}.library-help summary{min-height:52px;padding:14px 18px;font-weight:500}.library-help details>div{padding:0 18px 20px}.library-help p{color:var(--muted)}.download-management{margin-top:20px;text-align:right}.download-management>summary{display:inline-block;min-height:44px;padding:10px 0;color:var(--muted);font-size:14px;text-decoration:underline;cursor:pointer}.download-management>div{text-align:left;border:1px solid var(--line);padding:18px;border-radius:12px;margin-top:8px}.danger{color:#a32525}.dark .danger{color:#ffb7b7}.library-empty{text-align:center;background:var(--surface);border:1px solid var(--line);padding:36px 24px;border-radius:14px}.library-empty .empty-symbol{font-size:36px;color:var(--muted);margin-bottom:10px}.library-empty h2{font-family:Georgia,serif;font-size:26px;margin:8px 0}.library-empty p{max-width:520px;margin:12px auto 24px;color:var(--muted)}.library-empty a{display:inline-block}.download-open,.library-empty .primary{min-height:48px}
@media(max-width:900px){.library-heading{display:block}.library-state{margin:18px 0 0;text-align:left}.library-state small{display:inline-block;margin-left:12px}.download-top{flex-wrap:wrap}.download-info{flex-basis:calc(100% - 72px)}.download-ready{margin:12px 0 0 72px;flex:1}.download-open{margin-top:12px}.library-heading h1{font-size:36px}}
@media(max-width:600px){#library{padding-top:8px}.library-heading{margin-bottom:22px}.library-heading h1{font-size:32px}.library-intro{font-size:16px}.library-toolbar{display:block}.library-toolbar #refresh{width:100%;margin:10px 0 0}.library-filters{flex-wrap:nowrap;justify-content:space-between}.library-filters button{flex:1;min-width:0;padding:10px 6px;margin-right:8px}.library-filters button:last-child{margin-right:0}.library-state small{font-size:12px;margin-left:7px}.download-card{padding:16px}.download-card h3{font-size:20px}.download-open{width:100%;margin:14px 0 0}.download-ready{flex-basis:100%;margin-left:72px}.download-management{text-align:left}.library-empty{padding:30px 16px}.library-empty .primary{width:100%}.brand{font-size:16px}}

/* Full-width controls stay reachable throughout a downloaded repertoire. */
.reading-list #reader{padding-top:64px;padding-top:calc(64px + env(safe-area-inset-top,0px))}
.reading-list .reader-nav{position:fixed;top:0;left:0;right:0;z-index:60;height:64px;height:calc(64px + env(safe-area-inset-top,0px));padding:10px 12px;padding-top:calc(10px + env(safe-area-inset-top,0px));padding-left:calc(12px + env(safe-area-inset-left,0px));padding-right:calc(12px + env(safe-area-inset-right,0px));flex-wrap:nowrap;border-bottom:1px solid var(--line)}
.reading-list .reader-nav button{min-height:44px;white-space:nowrap;flex-shrink:0}.reading-list #close{min-width:44px}

/* Reading mode stays reachable even with the side controls minimized. */
.song-display-switch{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:10px;padding:3px;margin:8px 0 0;background:var(--surface)}.song-display-switch button{border:0;border-radius:7px;min-height:44px;min-width:88px;margin:0;padding:9px 16px}.song-display-switch button[aria-pressed="true"]{background:var(--gold);color:#102538;font-weight:700}

/* Compact song metadata; the existing floating controls keep their geometry. */
.reading .offline-song-header{margin:14px 0 18px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.reading .offline-song-header #category{display:inline-block;max-width:100%;margin:0 0 8px;padding:3px 9px;border-radius:6px;background:#f3e7c9;color:#78551c;font-size:11px;line-height:1.5;letter-spacing:.1em;word-wrap:break-word}
.dark .reading .offline-song-header #category{background:#4b432e;color:#eac77d}
.reading .offline-song-header #title{margin:0 0 8px;font-family:Georgia,serif;font-size:34px;font-weight:400;line-height:1.18;color:var(--ink);word-wrap:break-word}
.reading .offline-song-header #author{margin:0;font-size:16px;color:var(--muted)}
.reading .offline-song-header #moment{margin:0 0 6px;font-size:14px;line-height:1.4}
.reading .offline-song-header #rhythm{margin:8px 0 0;font-size:14px}
.reading .offline-song-header #download-date{margin:8px 0 0;font-size:12px;color:var(--muted)}
.reading .offline-song-header p:empty{display:none!important}
.reading #reader>.song-display-switch{margin:0 0 12px}
.reading #reader>#score{margin-top:0}
@media(max-width:600px){.reading .offline-song-header{margin:12px 0 16px;padding-bottom:16px}.reading .offline-song-header #title{font-size:26px}.reading .offline-song-header #author{font-size:15px}}