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#studio .st-performance p{color:var(--edition-ink,var(--white))}
/* Bird Chord v2 / Aurora-inspired working surface. */
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#studio #st-dock-xy .ac-xy__axis{color:#c3d1e1}
#studio #st-dock-xy .ac-xy__lbl{font-size:10px}
/* Selected-track controls stay beside the piano roll; both surfaces share state. */
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#studio .st-sound-panel .st-panel-head:before{display:none}
#studio .st-sound>label:has(#st-preset){display:grid}
#studio .st-sound{display:block}
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#studio .st-sound-panel select{max-width:100%}
#studio .st-sound-panel,#studio .au-composition-head{scroll-margin-top:100px}
@media(min-width:1000px){#studio .st-layout{display:grid;grid-template-columns:180px minmax(0,1fr) 270px;gap:12px}#studio .st-sound-panel{grid-column:auto}}
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@media(max-width:760px){#studio .st-track-panel{order:1}#studio .st-editor-panel{order:2}#studio .st-sound-panel{order:3;scroll-margin-top:170px}#studio .au-composition-head{scroll-margin-top:170px}}
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html body.bird-v1.bird-synth>header .header-promo{grid-column:2;grid-row:1;position:static!important;transform:none!important;justify-self:center;order:0;margin:0!important;max-width:100%;box-sizing:border-box}
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html body.bird-v1.bird-synth>header .theme-picker select{min-width:0;max-width:100%}
html body.bird-v1.bird-synth>header .theme-picker button{flex-shrink:0}
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/* Main navigation geometry is independent of page, theme, and viewport. */
html body.bird-v1.bird-synth>.v1-steps{display:grid!important;grid-template-columns:repeat(5,minmax(0,1fr))!important;grid-template-rows:repeat(2,64px)!important;grid-auto-flow:row!important;gap:8px!important;margin-top:12px!important;margin-bottom:20px!important;align-items:stretch!important}
html body.bird-v1.bird-synth>.v1-steps button{display:flex!important;flex-direction:row!important;align-items:center!important;justify-content:flex-start!important;gap:8px!important;min-width:0!important;min-height:0!important;height:100%!important;width:100%!important;margin:0!important;padding:9px 10px!important;box-sizing:border-box!important;border:2px solid var(--line)!important;border-radius:9px!important;transform:none!important;font-family:system-ui,"Microsoft JhengHei",sans-serif!important;white-space:normal!important;overflow:visible!important}
html body.bird-v1.bird-synth>.v1-steps button[aria-current=step]{border-color:var(--lime)!important;box-shadow:inset 3px 0 0 var(--lime)!important}
html body.bird-v1.bird-synth>.v1-steps button b{display:grid!important;place-items:center!important;width:26px!important;height:26px!important;flex:0 0 26px!important;font:600 12px/1 monospace!important}
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html body.bird-v1.bird-synth>.v1-steps button small{display:none!important}
html body.bird-v1.bird-synth>.v1-steps button:focus-visible{outline:3px solid var(--lime)!important;outline-offset:2px!important}
@media(max-width:760px){html body.bird-v1.bird-synth>.v1-steps{gap:5px!important;grid-template-rows:repeat(2,100px)!important}html body.bird-v1.bird-synth>.v1-steps button{flex-direction:column!important;justify-content:center!important;padding:6px 3px!important;gap:5px!important}html body.bird-v1.bird-synth>.v1-steps button span{font-size:12px!important;text-align:center!important}}
html{font-family:Inter,"Noto Sans TC",system-ui,sans-serif;color-scheme:dark}
body.bird-synth.is-studio{background:var(--bg);background-image:radial-gradient(ellipse at 10% 0%,#25595824,transparent 35%),radial-gradient(ellipse at 90% 10%,#592f8620,transparent 40%);min-height:100vh}
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.st-library{margin-top:16px;padding:16px;display:flex;align-items:center;flex-wrap:wrap;gap:8px;border:1px solid var(--line);border-radius:12px;background:var(--panel)}.st-library select{max-width:350px;padding:8px;border:1px solid var(--line);border-radius:8px}.st-library label{font-size:13px;color:var(--muted)}
.st-lab{margin-top:18px;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#07080d}.st-lab summary{cursor:pointer;display:flex;gap:12px;align-items:center;padding:18px 20px;font-size:15px;background:var(--panel)}.st-lab summary small{font-size:13px;color:var(--muted);margin-left:auto}.st-lab iframe{width:100%;height:820px;border:0;display:block}.st-lab-toolbar{padding:12px 18px;border-bottom:1px solid var(--line);display:flex;gap:8px;align-items:center}.st-lab-toolbar span{font-size:13px;color:var(--muted)}
@media(min-width:1200px){.bird-synth.is-studio #step-1 .v1-inspirations[open] .chips{display:grid;grid-template-columns:repeat(5,1fr)}.bird-synth.is-studio #step-1 .v1-inspirations .chips button{min-width:0;white-space:normal}}
@media(max-width:1160px){.st-layout{grid-template-columns:190px minmax(0,1fr)}.st-sound-panel{grid-column:1/-1}.st-sound{display:grid;grid-template-columns:1fr 1fr;gap:0 24px}.st-macros{grid-row:1/6;grid-column:2;grid-template-columns:repeat(4,1fr);align-content:center}.st-preset-name,.st-preset-desc{grid-column:1}.st-sound-actions{grid-column:2;grid-row:6}.st-visual{display:none}.st-top{flex-wrap:wrap}.st-note-controls{grid-template-columns:repeat(2,1fr) auto}}
@media(max-width:760px){.bird-synth.is-studio header{padding:18px 16px;height:86px}.bird-synth.is-studio .brand{font-size:23px}.bird-synth.is-studio .header-promo{display:none}.bird-synth.is-studio .theme-picker{margin-left:auto}.bird-synth.is-studio .v1-steps{padding:0 16px;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;margin-bottom:18px}.bird-synth.is-studio .v1-steps button{padding:10px 8px;gap:7px}.bird-synth.is-studio .v1-steps b{display:none}.bird-synth.is-studio .v1-steps small{display:none}.bird-synth.is-studio .v1-steps span{font-size:13px}.bird-synth.is-studio main{padding:0 14px 40px}.bird-synth.is-studio main>aside,.bird-synth.is-studio .workspace{padding:22px 18px}.studio-head{align-items:flex-start;flex-direction:column}.studio-head h1{font-size:25px}.st-top{padding:18px;gap:14px}.st-title{flex-basis:100%}.st-layout{grid-template-columns:1fr}.st-track-panel{order:2}.st-editor-panel{order:1}.st-sound-panel{order:3}.st-tracks{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}.st-track{padding:12px 10px;border-right:1px solid var(--line)}.st-track small{font-size:11px}.st-track-title{flex-wrap:wrap;font-size:13px}.st-track-title button{padding:3px 6px}.st-arrange{display:flex;flex-wrap:wrap}.st-arrange small{display:none}.st-sound{display:block}.st-macros{grid-template-columns:repeat(4,1fr);gap:12px}.st-macro-knob{width:52px;height:52px}.st-transport{flex-wrap:wrap;padding:12px}.st-position{margin-left:auto}.st-transport label{margin-left:0}.st-note-controls{grid-template-columns:repeat(2,1fr)}.st-note-controls button{grid-column:1/-1}.st-footer{flex-direction:column}.st-head-actions button{font-size:13px}.st-lab summary{flex-wrap:wrap}.st-lab summary small{margin-left:0}.st-lab iframe{height:760px}.st-library{gap:10px}.studio-launch button{margin-left:0}.studio-launch small{font-size:12px}}
@media(prefers-reduced-motion:reduce){.studio *{transition:none!important}.bird-synth.is-studio *{animation:none!important}}

/* One v2 shell overrides v1's more specific 980px header/navigation rules. */
html body.bird-v1.bird-synth{--v2-shell-width:1440px;--v2-gutter:32px}
html body.bird-v1.bird-synth>:is(header,.v1-steps,.feature-share,main){box-sizing:border-box;width:calc(100% - 2 * var(--v2-gutter));max-width:var(--v2-shell-width);margin-left:auto;margin-right:auto;min-width:0}
html body.bird-v1.bird-synth>.v1-steps{padding-left:0;padding-right:0}
html body.bird-v1.bird-synth>main{padding:0 0 60px}
html body.bird-v1.bird-synth>main>:is(aside,section,.workspace,.saved-panel){width:100%;max-width:100%;min-width:0;box-sizing:border-box;margin-left:0;margin-right:0}
@media(max-width:760px){
 html body.bird-v1.bird-synth{--v2-gutter:16px}
 html body.bird-v1.bird-synth>header{height:auto;min-height:86px;flex-wrap:wrap;gap:12px;padding:18px 16px}
 html body.bird-v1.bird-synth>header .theme-picker{margin-left:0;max-width:100%}
 html body.bird-v1.bird-synth>header .header-promo{display:none}
 html body.bird-v1.bird-synth>main{padding-bottom:40px}
}

/* Instrument surface: Aurora MIT controls and its cyan/violet glass vocabulary.
   Scoped here so the Bird composition workflow keeps its common aligned shell. */
.studio{--bg-0:#07080d;--bg-1:#0c0f18;--bg-2:#121726;--panel:#111522;--line:#8ca0dc24;--text:#e8ecff;--text-dim:#8e97b8;--text-faint:#7a83a6;--white:#e8ecff;--muted:#9da6c3;--mint:#5cf2ff;--a-cyan:#5cf2ff;--a-teal:#3ef0b0;--a-violet:#a78bfa;--a-pink:#ff6bd6;--a-amber:#ffc46b;--font-ui:Inter,"Microsoft JhengHei",system-ui,sans-serif;--font-mono:Consolas,monospace;--grad-aurora:linear-gradient(120deg,#3ef0b0,#5cf2ff 30%,#a78bfa 65%,#ff6bd6);--panel-hi:#26304e99;background:#07080d!important;border:1px solid var(--line);border-radius:16px;padding:16px!important;box-shadow:0 20px 80px #0005}
.studio-head{padding:4px 4px 16px;border-bottom:1px solid var(--line);margin-bottom:14px}.studio-head h1{font-size:21px;letter-spacing:.04em}.studio-head .overline{background:var(--grad-aurora);color:transparent;background-clip:text;font-weight:700;letter-spacing:.2em}.studio-head p{font-size:12px}.studio-head button{font-size:12px;padding:8px 10px}
.st-top{border-radius:9px;padding:12px 16px;gap:14px;min-height:65px;margin-bottom:12px;background:linear-gradient(120deg,#101624,#121220)}.st-title input{font-size:16px}.st-title small{font-size:11px;margin-top:6px}.st-top label{font-size:11px;gap:4px}.st-top input[type=number],.st-top select{font-size:12px;padding:6px}.st-top button{font-size:12px}
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.au-hero{position:relative;isolation:isolate;min-height:340px;display:grid;grid-template-columns:minmax(0,1fr) 31%;grid-template-rows:auto 150px;gap:15px;padding:22px 18px 14px;border:1px solid #8ca0dc2b;border-radius:17px;overflow:hidden;background:radial-gradient(ellipse at 45% 45%,#14413d65,transparent 65%),#060a0f}.au-sky{position:absolute;inset:0;z-index:-1;overflow:hidden;background-image:radial-gradient(circle at 15% 20%,#e7eaffb0 0 1px,transparent 1.5px),radial-gradient(circle at 70% 35%,#9be1dd70 0 1px,transparent 1.8px);background-size:107px 79px,153px 119px}.au-sky:before,.au-sky:after{content:"";position:absolute;width:150%;height:180px;left:-25%;top:30%;border-radius:50%;transform:rotate(9deg);border-top:2px solid #5cf2ff4d;box-shadow:0 -18px 35px #3ef0b01e,inset 0 35px 45px #5cf2ff20;background:repeating-linear-gradient(90deg,transparent,#5cf2ff07 4px,transparent 9px)}.au-sky:after{top:65%;transform:rotate(-11deg);border-color:#a78bfa44;box-shadow:0 -15px 40px #a78bfa26,inset 0 25px 35px #ff6bd619}.au-patch{min-width:0}.au-badge{color:#b39cfa;border:1px solid #a78bfa4d;border-radius:20px;padding:4px 10px;font:11px var(--font-mono);background:#a78bfa0b}.au-patch h2{font-size:clamp(23px,2.8vw,38px);color:#f4f7ff;letter-spacing:-.025em;margin:14px 0 6px;line-height:1.15}.au-patch p{font-size:12px;line-height:1.8;color:#a9b3cf;margin:6px 0;max-width:550px}.au-tags{display:flex;gap:6px;flex-wrap:wrap;margin:8px 0}.au-tags span{font:10px var(--font-mono);border:1px solid #8ca0dc20;border-radius:9px;padding:2px 6px;background:#07080d55;color:#a1accb}.au-patch>small{font-size:10px;color:#7fd4d1}.au-macros{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));align-items:center;gap:5px}.au-monitor{grid-column:2;grid-row:1 / 3;display:flex;flex-direction:column;gap:9px;min-width:0}.au-monitor .ac-xy{height:235px;min-height:180px;width:100%}.au-scopes{display:grid;grid-template-columns:1fr 1fr;gap:6px;min-width:0}.au-scopes>div{position:relative;border:1px solid #8ca0dc2b;border-radius:8px;height:64px;overflow:hidden;background:repeating-linear-gradient(0deg,transparent 0 15px,#8ca0dc15 15px 16px),repeating-linear-gradient(90deg,#080c1480 0 19px,#8ca0dc15 19px 20px)}.au-scopes small{position:absolute;top:4px;left:5px;font:9px var(--font-mono);color:#b1b9d1}.au-scopes canvas{width:100%;height:40px;position:absolute;bottom:0}.au-unmapped{opacity:.35}
.au-module-tabs{display:flex;gap:3px;padding:4px;border:1px solid var(--line);border-radius:12px;background:#0e111c;margin:12px 0}.studio .au-module-tabs button{flex:1;min-width:0;font-size:13px;border-color:transparent;background:transparent;color:var(--text-dim);padding:10px 5px}.au-module-tabs small{font:10px var(--font-mono);letter-spacing:.06em;margin-left:5px}.studio .au-module-tabs button[aria-selected=true]{color:var(--module-accent);border-color:color-mix(in srgb,var(--module-accent) 48%,transparent);background:linear-gradient(180deg,color-mix(in srgb,var(--module-accent) 22%,#111522),#111522);box-shadow:0 0 18px color-mix(in srgb,var(--module-accent) 16%,transparent)}.au-module-panel{display:grid;grid-template-columns:160px minmax(0,1fr);gap:12px;align-items:start}.au-groups{display:grid;gap:8px}.studio .au-groups button{text-align:left;white-space:normal;padding:10px 12px;font-size:12px;background:#0c0f18}.au-groups button>span{color:var(--module-accent);margin-right:7px}.au-groups small{display:block;font:10px var(--font-mono);color:var(--text-faint);margin-top:5px;padding-left:20px}.studio .au-groups button[aria-pressed=true]{border-color:var(--module-accent);box-shadow:inset 0 0 22px color-mix(in srgb,var(--module-accent) 13%,transparent);color:var(--module-accent)}.au-card{min-width:0;border:1px solid var(--line);border-radius:13px;background:linear-gradient(135deg,#181d30b8,#0c101c);padding:14px}.au-card-title{font-size:13px;color:var(--text);border-bottom:1px solid var(--line);padding-bottom:13px;margin-bottom:15px}.au-controls{display:flex;flex-wrap:wrap;gap:20px 17px;align-items:center;justify-content:flex-start;min-height:178px}.au-select{display:grid;gap:7px;font-size:10px;color:var(--text-dim);max-width:150px}.au-select select{max-width:100%;border:1px solid var(--line);padding:8px;font-size:12px;border-radius:8px}.studio .ac-toggle{padding:0;background:transparent;border:0}.studio .ac-knob__input{color:var(--text)}.au-keyboard-head{display:flex;justify-content:space-between;align-items:center;margin:18px 0 8px;font-size:11px;color:#aeb6d0;gap:10px}.au-keyboard-head small{font-size:10px;margin-left:8px;color:var(--text-faint)}.studio .au-keyboard-head button{font-size:11px;padding:6px 9px}.au-keyboard{display:flex;position:relative;border-top:2px solid transparent;border-image:var(--grad-aurora) 1;padding-top:4px;height:100px;isolation:isolate;overflow:hidden}.studio .au-key{position:relative;flex:1;min-width:0;border-radius:0 0 5px 5px;border:1px solid #242b3e;color:#6f7892;background:linear-gradient(90deg,#b9c1d7,#eff2fa 30%,#e3e8f4);padding:0 0 7px;display:flex;align-items:flex-end;justify-content:center;font:10px var(--font-mono);box-shadow:inset 0 -4px #acb5cb}.studio .au-key.black{z-index:2;flex:0 0 4%;margin-left:-2%;margin-right:-2%;height:61%;color:#acb5cb;background:linear-gradient(90deg,#090c12,#252a3d 60%,#080b10);box-shadow:0 3px 4px #0009,inset 0 -4px #080b10}.studio .au-key:active{background:#5cf2ff;box-shadow:0 0 15px #5cf2ff88}.au-composition-head{display:flex;justify-content:space-between;gap:10px;padding:26px 4px 12px;font-size:14px;color:#d4dced}.au-composition-head small{font:10px var(--font-mono);letter-spacing:.1em;color:#7b88a9;margin-left:10px}.au-composition-head>span:last-child{font-size:11px;color:#7b88a9}.st-layout{grid-template-columns:210px minmax(0,1fr) 215px;gap:12px}.st-sound>label:has(#st-category),.st-sound>label:has(#st-search),.st-sound>label:has(#st-preset),#st-preset-name,#st-preset-desc,#st-macros{display:none}.st-panel{border-radius:12px;background:linear-gradient(140deg,#151b2b,#0d111c)}.st-sound{padding:12px}.st-panel-head{padding:12px;font-size:12px}.st-panel-head small{font-size:10px}.st-sound-panel .st-panel-head{font-size:0}.st-sound-panel .st-panel-head:before{content:'音軌設定';font-size:12px}.st-sound-panel .st-panel-head small{display:none}.st-empty{border-style:solid;background:radial-gradient(ellipse at 35% 65%,#5cf2ff18,transparent 60%),radial-gradient(ellipse at 75% 40%,#a78bfa22,transparent 60%),#0b101a;padding:64px 24px}.st-empty h2{font-size:32px;color:#e8ecff}.studio .primary{background:var(--grad-aurora);color:#07080d;box-shadow:0 0 22px #5cf2ff26}
@media(max-width:1180px){.au-instrument{grid-template-columns:210px minmax(0,1fr)}.au-hero{grid-template-columns:minmax(0,1fr);grid-template-rows:auto auto}.au-monitor{grid-column:1;grid-row:auto;display:grid;grid-template-columns:1fr 1fr;align-items:end}.au-monitor .ac-xy{height:150px;min-height:150px}.au-macros{min-height:145px}.au-scopes{grid-template-columns:1fr}.au-scopes>div{height:70px}.au-module-panel{grid-template-columns:130px minmax(0,1fr)}.st-layout{grid-template-columns:180px minmax(0,1fr)}.st-sound-panel{grid-column:1 / -1}.st-sound{display:flex;gap:18px;flex-wrap:wrap;align-items:center}.st-sound-actions{display:flex;flex-wrap:wrap}}
@media(max-width:760px){.studio{padding:10px!important}.studio-head{display:block}.studio-head h1{font-size:21px}.st-head-actions{margin-top:12px;gap:6px}.st-head-actions button{font-size:11px}.st-top{gap:10px;padding:12px;flex-wrap:wrap}.st-title{flex-basis:100%}.st-top label{flex:1}.st-top select{max-width:100%}.au-instrument{display:flex;flex-direction:column}.au-library{border-right:0;border-bottom:1px solid var(--line);padding:12px}.au-library-title{margin-bottom:10px}.au-presets{height:165px}.au-count{padding-top:8px}.au-main{padding:8px}.au-hero{padding:20px 12px 12px;gap:15px}.au-patch h2{font-size:28px}.au-macros{grid-template-columns:1fr 1fr;gap:22px 4px}.au-monitor{grid-template-columns:1fr}.au-monitor .ac-xy{height:180px}.au-scopes{grid-template-columns:1fr 1fr}.au-module-tabs small{display:block;font-size:9px;margin:3px 0 0}.studio .au-module-tabs button{font-size:11px;padding:8px 2px}.au-module-panel{display:block}.au-groups{display:flex;overflow:auto;margin:0 0 10px;gap:5px}.studio .au-groups button{flex:0 0 auto;padding:8px;font-size:11px}.au-groups small{font-size:9px}.au-card{padding:12px}.au-controls{gap:18px 15px;justify-content:space-around}.au-keyboard-head{flex-wrap:wrap}.au-keyboard-head small{display:block;margin:5px 0 0}.au-keyboard{height:95px}.studio .au-key{font-size:8px}.au-composition-head{display:block}.au-composition-head small{display:block;margin:5px 0}.au-composition-head>span:last-child{display:none}.st-layout{display:flex;flex-direction:column}.st-layout>*{width:100%}.st-sound{display:block}.st-sound-actions{display:grid}.st-empty{padding:35px 16px}.st-empty h2{font-size:25px}.au-select{max-width:125px}.studio .ac-knob--xl{--k-size:96px}}
.studio h1,.studio h2{font-family:var(--font-ui)}



.studio #st-content>.st-transport{margin:0 0 12px;border:1px solid var(--line);border-radius:10px;background:linear-gradient(110deg,#142027,#151321);padding:10px 14px}
@media(max-width:760px){.studio #st-content>.st-transport{flex-wrap:wrap}.studio .st-transport label{margin-left:0}.studio .st-position{min-width:100px}}
/* Keep legacy theme typography and square-button overrides out of the instrument. */
html body.bird-v1.bird-synth.is-studio #studio,html body.bird-v1.bird-synth.is-studio #studio :is(h1,h2,button,input,select){font-family:Inter,"Microsoft JhengHei",system-ui,sans-serif!important}
html body.bird-v1.bird-synth.is-studio #studio .au-instrument button:not(.au-key):not(.ac-toggle){border-radius:9px!important}
html body.bird-v1.bird-synth.is-studio #studio .au-categories button{border-radius:18px!important}
html body.bird-v1.bird-synth.is-studio #studio .au-instrument :is(input,select){border-radius:8px!important}
/* The synth transport follows the same content edges and stays available while editing. */
.studio #st-content>.st-transport{position:sticky;top:8px;z-index:20;box-shadow:0 8px 24px #0006;backdrop-filter:blur(16px);width:100%;box-sizing:border-box}
.studio #st-seek{flex:1;min-width:80px;width:auto;accent-color:#5cf2ff;margin:0 8px;cursor:pointer}
.studio .st-transport #st-play,.studio .st-transport #st-stop{min-width:78px;min-height:40px;font-size:13px!important}
@media(max-width:760px){.studio #st-content>.st-transport{gap:8px;top:4px;padding:10px}.studio #st-seek{order:5;flex-basis:100%;margin:4px 0}.studio .st-transport #st-master{width:88px!important}.studio .st-transport .st-position{font-size:11px;margin-left:auto}.studio .st-transport label{font-size:12px}}

#studio .au-keyboard .au-key:not(.is-playing):not(.is-preview):not(.is-performance){color:#172231!important}
#studio .au-keyboard .au-key.black:not(.is-playing):not(.is-preview):not(.is-performance){color:#f3f6fc!important}

html body.bird-v1.bird-synth{--v1-shell-width:1280px}
html body.bird-v1.bird-synth>:is(header,.v1-steps){width:calc(100% - 32px);max-width:1280px;box-sizing:border-box;margin-left:auto;margin-right:auto}
html body.bird-v1.bird-synth>.v1-steps{display:grid!important;grid-template-columns:repeat(5,minmax(0,1fr))!important;grid-template-rows:repeat(2,64px)!important;padding:0!important;gap:8px!important}
html body.bird-v1.bird-synth>.v1-steps button{min-width:0!important;width:100%!important;margin:0!important;padding:8px!important}
html body.bird-v1.bird-synth>.v1-steps button small{display:none!important}
html body.bird-v1.bird-synth.is-studio>main{width:calc(100% - 32px);max-width:1280px;padding:0 0 60px;margin:auto;display:block;min-width:0}
.studio{--bg:#07080d;--lime:#5cf2ff;--orange:#a78bfa;font-family:system-ui,'Microsoft JhengHei',sans-serif}
.studio input,.studio select,.studio textarea{background:var(--bg);color:var(--white)}
.studio-launch{display:flex;align-items:center;flex-wrap:wrap;gap:12px;padding:16px;border:1px solid #4a7b80;border-radius:12px;background:linear-gradient(100deg,#173333,#1c263b);margin:14px 0 24px;color:#ecfffb}
@media(max-width:760px){html body.bird-v1.bird-synth>.v1-steps{grid-template-rows:repeat(2,82px)!important;gap:5px!important}.st-top{flex-wrap:wrap}.st-footer{flex-wrap:wrap}}

.st-chords button[aria-current=true]{border-color:var(--mint);background:color-mix(in srgb,var(--mint) 14%,var(--panel))}
/* Playback and editing are separate native touch/keyboard targets. */
section#studio .st-chord-help{margin:0 0 8px;color:var(--skin-muted,var(--muted));font-size:12px;line-height:1.5}
section#studio #st-chords .st-chord-cell{display:flex;align-items:stretch;gap:4px;flex-shrink:0}
section#studio #st-chords .st-chord-card{position:relative;display:grid;isolation:isolate;flex-shrink:0}
section#studio #st-chords .st-chord-play{display:block;width:100%;min-width:84px;min-height:88px;margin:0;padding:7px 10px 47px;white-space:nowrap;line-height:18px;touch-action:manipulation}
section#studio #st-chords .st-chord-play small{margin:0 0 4px;line-height:13px}
section#studio #st-chords .st-chord-symbol{display:block;line-height:18px}
section#studio #st-chords .st-chord-play-icon{font-size:9px;opacity:.7}
section#studio #st-chords .st-chord-lock{font-size:10px}
section#studio #st-chords button:focus-visible{outline:3px solid var(--skin-accent,var(--mint));outline-offset:2px}


/* Original Aurora is the primary surface; no reduced substitute controls. */
#studio .au-instrument[hidden],#studio .au-keyboard-head[hidden],#studio .st-performance[hidden]{display:none!important}
#studio .st-native-aurora{margin:16px 0 24px;border:1px solid #53617b;border-radius:14px;overflow:hidden;background:#07080d}
#studio .st-native-aurora>summary{display:none}
#studio .st-native-aurora .st-lab-toolbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:12px 16px;background:#111726;color:#b8c6dc}
#studio .st-native-track{display:flex;align-items:center;gap:8px;white-space:nowrap;font-size:13px}
#studio .st-native-track select{width:160px;max-width:100%;padding:8px;background:#090e19;color:#e8ecff}
#studio #st-lab-frame{display:block;border:0;width:100%;height:min(1000px,calc(100svh - 90px));min-height:640px;background:#07080d}
@media(max-width:760px){#studio #st-lab-frame{height:760px;min-height:600px}.st-native-aurora .st-lab-toolbar span{width:100%}}