*{box-sizing:border-box}
body{margin:0;background:var(--surface-card);color:var(--text-body);font:14px var(--font-body)}
button,input,select{font:inherit}
button{cursor:pointer;color:inherit;background:var(--surface-card);border:1px solid var(--border-default);border-radius:7px;min-width:44px;min-height:44px;padding:6px 10px;touch-action:manipulation}
button:hover{border-color:var(--interactive-accent)}
button:disabled{opacity:.35;cursor:default}
button[aria-pressed=true]{border-color:var(--interactive-accent);background:color-mix(in srgb,var(--interactive-accent) 15%,var(--surface-card));color:var(--interactive-accent)}
button:focus-visible,select:focus-visible,input:focus-visible,canvas:focus-visible{outline:2px solid var(--interactive-accent);outline-offset:-2px}
#root{height:100dvh;max-width:2000px;margin:auto;padding:10px 14px max(6px,env(safe-area-inset-bottom));display:grid;grid-template-rows:44px minmax(0,1fr) auto 20px;gap:10px}
header{display:flex;justify-content:space-between;align-items:center;gap:8px}
h1{margin:0;font:600 24px var(--font-display);color:var(--text-heading);letter-spacing:-.7px;white-space:nowrap}
h1 span{color:var(--interactive-accent)}
.header-actions{display:flex;gap:6px}
.bar{border:1px solid var(--border-default);border-radius:10px;background:var(--surface-page);padding:10px}
.bar h2{margin:0 0 10px;font:12px var(--font-mono);text-transform:uppercase;letter-spacing:1px;color:var(--bar-accent)}
.instrument{display:grid;grid-template-columns:248px minmax(0,1fr) 268px;gap:10px;min-height:0}
.tools{--bar-accent:var(--color-teal);overflow:auto}
.music{--bar-accent:var(--color-gold);overflow:auto}
.transport{--bar-accent:var(--color-copper);border-top:3px solid var(--bar-accent);display:flex;align-items:center;gap:16px}
.tools{border-top:3px solid var(--bar-accent)}
.music{border-top:3px solid var(--bar-accent)}
label,.octave{display:flex;flex-direction:column;gap:3px;font-size:11px;color:var(--text-muted);min-width:0}
select{width:100%;min-width:0;min-height:44px;font-size:16px;color:var(--text-heading);color-scheme:dark;background:var(--surface-card);border:1px solid var(--border-default);border-radius:6px;padding:4px;cursor:pointer}
button svg{width:20px;height:20px;vertical-align:middle;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.drawing-fields{display:grid;gap:6px}
.palette{margin:10px 0}
.pens{display:grid;grid-template-columns:repeat(5,44px);gap:2px;justify-content:space-between}
.pens button{width:44px;height:44px;border-radius:50%;padding:0;border:2px solid transparent;position:relative;background:transparent}
.pens button::before{content:'';position:absolute;inset:7px;border-radius:50%;background:var(--pen-color)}
.pens button[aria-pressed=true]{border-color:var(--text-heading)}
#instrument-name{display:block;color:var(--bar-accent);font:12px var(--font-mono);margin-top:4px}
.tool-group{display:grid;grid-template-columns:repeat(4,1fr);gap:3px}
.tool-group button{padding:4px;font-size:22px}
.paper{position:relative;min-width:0;min-height:0;border:1px solid var(--border-default);border-radius:10px;overflow:hidden;background:var(--surface-page)}
.paper.light{background:var(--color-cream-100)}
#canvas{display:block;width:100%;height:100%;touch-action:none;cursor:crosshair}
.paper.erasing #canvas{cursor:crosshair}
.empty{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:12px;text-align:center;pointer-events:none;color:var(--text-muted);padding:12px}
.empty[hidden]{display:none}
.empty span{font:24px var(--font-display)}
.empty small{font-size:12px}
.light .empty{color:var(--color-base-600)}
#pitch{position:absolute;right:12px;top:12px;font:14px var(--font-mono);padding:5px 8px;background:var(--surface-card);color:var(--text-heading);border-radius:4px;pointer-events:none}
#pitch:empty{display:none}
#playhead{display:none;position:absolute;top:0;bottom:0;width:2px;background:var(--interactive-accent);pointer-events:none}
.settings{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.settings label:nth-child(2){grid-column:1/-1;grid-row:2}
.octave>div{display:flex;align-items:center;justify-content:space-between}
.octave button{padding:0;font-size:20px}
.octave output{color:var(--text-heading)}
.arrangement{margin-top:12px}
.pages{display:flex;gap:4px;overflow-x:auto;min-width:0;padding:2px 0}
.page{display:flex;flex-direction:column;gap:2px;align-items:center;flex-shrink:0;font:10px var(--font-mono);padding:4px}
.page canvas{width:72px;height:42px;background:var(--surface-card);border-radius:3px;pointer-events:none}
.page[aria-current=true]{border-color:var(--interactive-accent);color:var(--interactive-accent)}
.page-actions{display:flex;gap:4px;margin-top:6px}
.page-actions button{padding:0;flex:1;font-size:20px}
.player-controls{display:flex;gap:4px}
.player-controls button{font-size:20px;padding:0;width:44px}
.primary{background:var(--interactive-accent);color:var(--button-primary-text);border-color:var(--interactive-accent)}
.primary[aria-pressed=true]{background:var(--interactive-accent);color:var(--button-primary-text)}
.position{flex:1;min-width:90px;font:11px var(--font-mono);color:var(--text-muted)}
.time{display:flex;align-items:center;gap:6px;margin-top:8px}
.track{height:4px;background:var(--border-default);flex:1;border-radius:4px;overflow:hidden}
#progress{display:block;height:100%;width:0;background:var(--bar-accent)}
.tempo{display:grid;grid-template-columns:auto auto auto;align-items:center;gap:2px;width:150px}
.tempo input{grid-column:1/-1}
.tempo output{color:var(--text-heading);font:14px var(--font-mono)}
.volume{width:90px}
input[type=range]{width:100%;accent-color:var(--interactive-accent);height:28px;margin:0;cursor:pointer}
.parts{display:flex;gap:4px}
.part{font-size:12px;padding:6px 8px;white-space:nowrap}
.part span{color:var(--color-gold)}
footer{display:flex;justify-content:space-between;gap:8px;font-size:11px;color:var(--text-muted);min-width:0;align-items:center}
footer p{margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#stroke-count{white-space:nowrap;font-family:var(--font-mono)}
dialog{background:var(--surface-page);border:1px solid var(--border-default);color:var(--text-body);width:calc(100% - 32px);max-width:580px;max-height:calc(100dvh - 32px);overflow:auto;padding:24px;border-radius:10px}
dialog::backdrop{background:rgba(0,0,0,.6)}
.dialog-title{display:flex;justify-content:space-between;gap:16px;align-items:center}
.dialog-title h2{font:26px var(--font-display);color:var(--text-heading);margin:0}
dialog p{line-height:1.6}
@media(max-width:1100px) and (min-width:701px){.transport{flex-wrap:wrap;gap:8px}.parts{margin-left:auto}.position{min-width:150px}.instrument{grid-template-columns:248px minmax(0,1fr) 256px}}
@media(max-width:700px){
#root{padding:6px;gap:5px;grid-template-rows:44px minmax(0,1fr) auto 16px}
h1{font-size:17px}.header-actions{gap:3px}.header-actions button{padding:3px;font-size:11px}
.instrument{grid-template-columns:minmax(0,1fr);grid-template-rows:auto minmax(100px,1fr) auto;gap:5px}
.bar{padding:5px;border-radius:7px}.bar h2{display:none}
.tools{position:relative;display:grid;grid-template-columns:116px minmax(0,1fr);gap:4px;max-height:218px}
.drawing-fields{gap:2px}.drawing-fields label{font-size:10px;gap:0}.drawing-fields select{min-height:44px}
.palette{margin:0}.pens{grid-template-columns:repeat(5,44px);gap:2px;justify-content:space-between}
.tool-group{grid-column:1/-1;grid-template-columns:repeat(7,minmax(0,1fr));gap:2px}
.tool-group button{min-width:0;font-size:20px}
.settings{grid-template-columns:repeat(6,minmax(0,1fr));gap:3px}
.settings select{padding:0}
.settings label:nth-child(1){grid-column:1}
.settings label:nth-child(2){grid-column:3/5;grid-row:1}
.settings label:nth-child(3){grid-column:2;grid-row:1}
.octave{grid-column:5/7;grid-row:1}
.settings label:nth-child(5){grid-column:1;grid-row:2}
.settings label:nth-child(6){grid-column:2;grid-row:2}
.settings label:nth-child(7){grid-column:3/5;grid-row:2}
#click{grid-column:5;grid-row:2;align-self:end;padding:0;font-size:11px}
#song{grid-column:6;grid-row:2;align-self:end;padding:0;font-size:11px}
.music{max-height:194px}
.arrangement{display:flex;gap:4px;margin-top:4px;align-items:center}
.pages{flex:1}.page canvas{width:48px;height:25px}.page{min-height:44px;padding:2px}
.page-actions{margin:0;gap:2px}.page-actions button{width:44px}
.transport{display:grid;grid-template-columns:184px minmax(0,1fr) 62px;gap:4px}
.player-controls{grid-column:1}.tempo{grid-column:2;width:auto;font-size:10px}.volume{grid-column:3;width:auto;font-size:10px}
.position{grid-column:1/-1;grid-row:2;display:flex;gap:8px;align-items:center;font-size:10px}
.time{flex:1;margin:0}.parts{grid-column:1/-1;grid-row:3}.part{flex:1;padding:4px;font-size:11px}
.empty span{font-size:19px}.empty small{font-size:11px}.empty{gap:4px}
}
@media(max-width:370px){.tools{grid-template-columns:100px minmax(0,1fr)}.pens{grid-template-columns:repeat(4,44px)}}
@media(max-height:740px) and (max-width:700px){.tools{max-height:158px}.music{max-height:126px}.instrument{grid-template-rows:auto minmax(80px,1fr) auto}}
@media(max-height:780px) and (min-width:701px){.bar{padding:6px}.drawing-fields{gap:2px}.palette{margin:4px 0}.bar h2{margin-bottom:4px}.settings{gap:3px}.tool-group{grid-template-columns:repeat(4,1fr)}}

#crossings{position:absolute;inset:0;pointer-events:none}
.crossing{position:absolute;width:10px;height:10px;border:2px solid var(--surface-page);border-radius:50%;background:var(--text-heading);transform:translate(-50%,-50%)}
.light .crossing{background:var(--color-base-900);border-color:var(--color-cream-100)}
@media(max-width:700px){.tools{max-height:310px}.drawing-fields{grid-column:1;grid-row:1}.palette{grid-column:2;grid-row:1}}
@media(max-height:740px) and (max-width:700px){.tools{max-height:220px}}

.drawing-fields{grid-template-columns:repeat(2,minmax(0,1fr))}.drawing-fields label:nth-child(-n+2){grid-column:1/-1}

@media(max-width:700px){
.tools{display:grid;grid-template-columns:1fr;max-height:310px}
.drawing-fields{grid-column:1;grid-row:auto;grid-template-columns:repeat(4,minmax(0,1fr))}
.drawing-fields label:nth-child(-n+2){grid-column:auto}.drawing-fields label:first-child{grid-column:span 3}
.palette{grid-column:1;grid-row:auto}.pens{grid-template-columns:repeat(5,44px);gap:2px}.pens button{width:44px;height:44px}
.tool-group{grid-column:1;grid-template-columns:repeat(7,minmax(0,1fr))}
}

/* Picture tools: the same controls, large visual choices and short labels. */
button,select{min-width:48px;min-height:48px;-webkit-tap-highlight-color:transparent}
#root{grid-template-rows:56px minmax(0,1fr) auto 20px}
.instrument{grid-template-columns:280px minmax(0,1fr) 280px}
.bar{border-radius:16px;padding:8px}.bar h2{font:600 16px var(--font-body);text-transform:none;letter-spacing:0}
.picture-button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;padding:4px;border-radius:12px;font:12px var(--font-body)}
.picture-button svg{width:28px;height:28px;flex-shrink:0;stroke-width:1.8}
.picture-button .button-label{line-height:1.1;white-space:nowrap}
.picture-button[aria-pressed=true]{box-shadow:inset 0 0 0 2px var(--interactive-accent)}
.header-actions .picture-button{width:52px;height:52px}
.drawing-fields{grid-template-columns:repeat(3,minmax(0,1fr));gap:5px}
.drawing-fields button{min-height:72px;background:color-mix(in srgb,var(--color-teal) 8%,var(--surface-card))}
.drawing-fields button svg{color:var(--color-teal)}
.drawing-fields small{font:10px var(--font-body);color:var(--text-muted);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pens{grid-template-columns:repeat(5,48px);gap:6px;justify-content:space-between}
.pens button{width:48px;height:64px;border-radius:12px;border:2px solid var(--pen-color);background:color-mix(in srgb,var(--pen-color) 16%,var(--surface-card));position:static}
.pens button::before{display:none}.pens button svg{width:27px;height:27px;color:var(--text-heading)}
.pens button .button-label{font-size:10px}.pens button[aria-pressed=true]{border-color:var(--text-heading);box-shadow:0 0 0 2px var(--pen-color);background:color-mix(in srgb,var(--pen-color) 40%,var(--surface-card))}
#instrument-name{font:12px var(--font-body)}
.tool-group{grid-template-columns:repeat(4,minmax(0,1fr));gap:4px}
.tool-group button{font-size:12px}.tool-group svg{width:22px;height:22px}
.music-actions{display:grid;grid-template-columns:1fr 1fr;gap:6px}.music-actions button{height:72px}
.music-actions svg{color:var(--color-gold)}
.page-actions button{font-size:10px;min-width:0;width:48px}.page-actions svg{width:20px;height:20px}
.page{min-height:56px}.page canvas{width:72px;height:42px}
.player-controls button{width:52px;min-height:60px;font-size:12px}.primary svg{fill:currentColor;stroke:none}
.part{flex-direction:row;font-size:12px}.part svg{width:24px;height:24px;color:var(--color-gold)}
.choices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:20px}
.choice{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;min-height:110px;padding:10px;font-size:14px;border-radius:14px}
.choice canvas{width:100%;height:70px;object-fit:contain;pointer-events:none}.choice svg{width:48px;height:48px;fill:none;stroke:var(--color-teal);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
#tune-dialog .settings{margin-top:20px;gap:12px}#tune-dialog label{font-size:14px}
.export-actions{display:flex;gap:12px}.export-actions button{flex:1;min-height:90px}
@media(max-width:1100px) and (min-width:701px){.instrument{grid-template-columns:280px minmax(0,1fr) 280px}.transport{gap:8px}.part{padding:4px}.volume{width:70px}.tempo{width:125px}}
@media(max-width:700px){
#root{grid-template-rows:52px minmax(0,1fr) auto 16px}.instrument{grid-template-columns:minmax(0,1fr);grid-template-rows:auto minmax(100px,1fr) auto}
.header-actions{gap:3px}.header-actions .picture-button{width:48px;height:48px;font-size:10px}.header-actions svg{width:24px;height:24px}
.bar{padding:5px}.tools{max-height:340px;gap:4px}.drawing-fields{grid-template-columns:repeat(3,minmax(0,1fr));gap:3px}.drawing-fields button{min-height:60px}.drawing-fields small{font-size:10px}
.palette{margin:0}.pens{grid-template-columns:repeat(5,48px);gap:4px}.pens button{height:54px}
#instrument-name{margin-top:2px;font-size:10px}.tool-group{grid-template-columns:repeat(7,minmax(0,1fr));gap:2px}.tool-group button{font-size:9px;padding:2px}.tool-group svg{width:22px;height:22px}
.music{max-height:136px}.music-actions{grid-template-columns:1fr 1fr}.music-actions button{height:48px;flex-direction:row}.music-actions svg{width:24px;height:24px}
.page-actions button{width:48px;font-size:9px;padding:2px}.page-actions svg{width:18px;height:18px}.page canvas{width:48px;height:25px}
.transport{grid-template-columns:220px minmax(0,1fr) 56px;gap:3px}.player-controls{gap:3px}.player-controls button{width:52px;min-height:54px;font-size:10px}
.part{font-size:11px}.part svg{width:20px;height:20px}.choices{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}}
.music-actions #song{grid-column:auto;grid-row:auto;align-self:auto}

/* Space separates the choice tiles, sound colors, and edit tools. */
.tools .palette{margin:var(--space-xl) 0}
@media(max-width:700px){.tools{max-height:380px}.tools .palette{margin:var(--space-lg) 0}}
/* Picture library and adult controls use the existing token vocabulary. */
.song-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:var(--space-lg);margin-top:var(--space-lg)}
.song-list article{display:flex;flex-direction:column;gap:var(--space-sm)}
.song-list article>button:first-child{min-height:110px;display:flex;flex-direction:column;align-items:center;gap:var(--space-sm)}
.song-list img{width:140px;height:70px;object-fit:contain;border-radius:6px;background:var(--surface-card)}
.library-actions{display:flex;flex-wrap:wrap;gap:var(--space-md);margin:var(--space-lg) 0}
#rename-song{display:flex;gap:var(--space-md);align-items:end}#rename-song label{flex:1}#song-name{width:100%;font-size:16px;min-height:48px;color:var(--text-body);background:var(--surface-card);border:1px solid var(--border-default);border-radius:6px}
#save-state{font-size:11px;color:var(--text-muted)}
body{padding-bottom:env(safe-area-inset-bottom);padding-top:env(safe-area-inset-top)}
@media(max-width:700px){header .header-actions{gap:4px}header h1{font-size:18px}footer{gap:4px}footer p{flex:1;min-width:0}#save-state{white-space:nowrap}#save-state{margin-left:auto}}