:root{
  --bg:#efe1c4;
  --paper:#fff9ef;
  --paper-soft:#fcf3e2;
  --line:#e2cca6;
  --line-strong:#ccb17c;
  --ink:#2d1d12;
  --muted:#7c6851;
  --shadow:0 10px 26px rgba(70,49,18,.10);
  --radius:18px;
  --cell:26px;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:linear-gradient(180deg,#f7eedb 0%,var(--bg) 100%);color:var(--ink);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Noto Sans TC","Microsoft JhengHei",sans-serif;max-width:100%;overflow-x:hidden}
button,input,select,output{font:inherit;color:inherit}
button{border:1px solid var(--line-strong);background:#fffaf1;border-radius:12px;padding:8px 12px;cursor:pointer;box-shadow:0 2px 0 rgba(0,0,0,.04);transition:transform .12s ease,filter .12s ease,background .12s ease}
button:hover{transform:translateY(-1px);filter:brightness(.99)}
button:active{transform:translateY(0)}
small,.subhead,.brand-sub,.state-box small{color:var(--muted)}
.app-shell{max-width:1360px;margin:0 auto;padding:14px}
.card{background:rgba(255,249,239,.96);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:12px 14px;margin-bottom:12px}
.app-header{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:14px;min-width:0}
.logo{width:180px;max-height:60px;object-fit:contain;display:block}
.brand-copy{display:grid;gap:4px;align-content:center}
.brand-copy h1{margin:0;font-size:26px;line-height:1.05}
.brand-sub{font-size:14px;line-height:1.2}
.header-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px}
.header-actions button{display:flex;align-items:center;gap:8px;min-width:122px;justify-content:center;padding:9px 10px}
.button-icon{display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;font-size:14px;line-height:1;color:var(--ink)}
.danger{color:#8d231f}
.transport{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.transport-group{display:flex;align-items:center;gap:10px;padding-right:8px}
.transport-group+.transport-group{border-left:1px solid var(--line);padding-left:14px}
.transport-left{gap:10px}
.transport-left span{display:grid;gap:2px}
.transport-left b{font-size:15px}
.transport-left small{font-size:13px}
.round{width:50px;height:50px;border-radius:50%;border:none;color:#fff;font-size:22px;display:grid;place-items:center;box-shadow:0 6px 14px rgba(0,0,0,.14)}
.play{background:#35a34d}.pause{background:#eb841c}.stop{background:#de2e34}.round.is-active{outline:4px solid rgba(86,111,45,.18)}
.tempo-box label,.meter-box label,.range{display:grid;gap:5px}
.tempo-box input,.meter-box input,.meter-box select{border:1px solid var(--line-strong);border-radius:10px;background:#fffaf2;padding:8px 10px;text-align:center}
.tempo-box input{width:82px;font-size:18px;font-weight:700}
.meter-box input{width:78px;font-size:16px;font-weight:700}
.meter-box select{font-size:16px;padding-inline:10px}
.bpm-buttons{display:grid;gap:4px}
.bpm-buttons button{padding:4px 10px;min-width:36px}
.knob{width:58px;height:58px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#8f9441,#5c6622 64%,#34380f 100%);display:grid;place-items:center;color:#fff;font-weight:800;position:relative}
.knob:after{content:"";position:absolute;width:4px;height:22px;background:#fff9de;top:7px;border-radius:5px;transform-origin:50% 22px;transform:rotate(var(--angle,0deg))}
.switch{display:flex;align-items:center;gap:8px}
.switch input{display:none}
.switch i{width:42px;height:24px;border-radius:99px;background:#dac7ab;position:relative;flex:none}
.switch i:before{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#fff;transition:.18s}
.switch input:checked+i{background:#62aa4d}
.switch input:checked+i:before{left:21px}
.switch.compact i{width:36px;height:22px}.switch.compact i:before{width:16px;height:16px}.switch.compact input:checked+i:before{left:17px}
.range input,.field input[type=range],.track-row input[type=range]{accent-color:#6f812d}
.range input{width:150px}
.state-box{display:grid;gap:4px;min-width:180px}
.state-box b{font-size:18px;line-height:1.1}
.section-head{display:flex;align-items:flex-start;gap:10px;margin-bottom:10px}
.panel-head-row{justify-content:space-between;flex-wrap:wrap}
.title-stack{display:grid;gap:2px}
.title-stack h2,.panel-title h2{margin:0;font-size:20px;line-height:1.05}
.subhead{font-size:14px;line-height:1.15}
.accent-legend{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:flex-end}
.legend-chip{display:flex;align-items:center;gap:6px;padding:6px 10px;border:1px solid var(--line);border-radius:999px;background:var(--paper-soft);font-size:14px}
.dot{width:12px;height:12px;border-radius:50%;display:inline-block}
.strongest{--a:#df2935}.medium{--a:#f07d1d}.weak{--a:#e4ac17}.silent{--a:#cabca6}
.accent-grid{display:grid;grid-template-columns:repeat(16,minmax(42px,1fr));gap:12px;align-items:start}
.accent-step{display:grid;justify-items:center;gap:8px;color:var(--muted)}
.beat-index{font-size:13px;line-height:1}
.accent-step.disabled{opacity:.32}
.accent-cell{width:36px;height:36px;border-radius:10px;border:1px solid rgba(0,0,0,.08);background:var(--a)}
.accent-cell.cursor,.cell.cursor{outline:3px solid rgba(61,133,178,.24);box-shadow:0 0 0 4px rgba(255,255,255,.92),0 0 16px rgba(28,119,160,.28)}
.seq-toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:flex-end}
.mini-action{padding:8px 10px;background:#fff7e8}
.step-lengths{display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.step-lengths span{font-size:14px;color:var(--muted)}
.step-lengths button{min-width:40px;padding:6px 10px}
.step-lengths button.active{background:#6e7d2c;color:#fff}
.sequencer-grid{width:100%;overflow-x:auto;overflow-y:hidden;padding-bottom:4px;scrollbar-color:#b68f4d #f6e6c8}
.sequencer-grid[data-length="8"]{--cell:26px}
.sequencer-grid[data-length="16"]{--cell:24px}
.sequencer-grid[data-length="32"]{--cell:18px}
.sequencer-table{width:max-content;min-width:100%;display:grid;gap:6px}
.track-header,.track-row{display:grid;grid-template-columns:56px 56px 88px 176px 114px 78px 78px repeat(var(--steps),var(--cell));gap:6px;align-items:center;width:max-content;min-width:100%}
.track-header{font-size:13px;font-weight:700;color:var(--muted);padding-bottom:2px}
.track-row{border-radius:14px;padding:6px;background:linear-gradient(90deg,color-mix(in srgb,var(--row) 66%,white),color-mix(in srgb,var(--row) 34%,white));}
.track-row.off{opacity:.48}
.track-row.selected-row{box-shadow:inset 0 0 0 2px rgba(255,255,255,.45),0 0 0 2px color-mix(in srgb,var(--row) 40%,white)}
.track-key{padding:7px 0;font-weight:800;background:rgba(255,255,255,.62);min-width:48px}
.track-row input[type=range]{width:100%}
.track-row select{min-width:0;border:1px solid rgba(0,0,0,.12);border-radius:10px;background:rgba(255,255,255,.78);padding:7px 8px}
.mini-range{display:grid;gap:4px;font-size:12px;color:#fff;text-align:center}
.cell{width:var(--cell);height:var(--cell);border-radius:8px;padding:0;border:1px solid rgba(0,0,0,.08);background:rgba(255,255,255,.52)}
.cell.active{background:color-mix(in srgb,var(--row) 90%,black);box-shadow:inset 0 0 0 2px rgba(255,255,255,.22),0 2px 8px rgba(0,0,0,.12)}
.cell.selected{outline:2px solid rgba(17,35,12,.62)}
.grid-main{display:grid;grid-template-columns:minmax(280px,1fr) minmax(280px,1fr);gap:12px}
.panel{min-height:260px}
.panel-title{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;margin-bottom:10px}
.badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:#648a38;color:#fff;font-size:12px}
.selected-track-card{display:grid;gap:4px;padding:10px 12px;margin-bottom:12px;border-radius:14px;background:linear-gradient(90deg,var(--selected-color),#fff4db);color:#fff;font-weight:700}
.selected-track-card small{color:#fdf8f1}
.panel-section{display:grid;gap:12px}
.field{display:grid;gap:6px}
.field input,.field select{width:100%;border:1px solid var(--line-strong);border-radius:10px;background:#fffaf2;padding:8px 10px}
.wave-buttons,.random-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(92px,1fr));gap:8px}
.wave-buttons button,.random-grid button{min-height:54px;background:#fff7e8}
.wave-buttons button.active{background:#6e7d2c;color:#fff}
.adsr-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.adsr-item{display:grid;gap:6px;justify-items:center;text-align:center}
.adsr-item input{writing-mode:vertical-lr;direction:rtl;height:106px;margin:0 auto}
.lock-list{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.lock-list label{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:8px 10px;border:1px solid var(--line);border-radius:10px;background:#fff7e8}
.visualizer-card{background:#083f36;color:#ebfff8}
.visualizer-card.spectrum{background:#0a0908}
canvas{display:block;width:100%;height:230px;border-radius:14px;background:#06150f}
.footer{display:flex;flex-wrap:wrap;align-items:center;gap:18px}
#readyDot{color:#59a941}
.smoke-output{max-height:240px;overflow:auto;display:grid;gap:6px}
.smoke-row{display:grid;grid-template-columns:82px 1fr 1fr;gap:8px;align-items:center;padding:8px 10px;border-radius:10px;background:#fff7e8}
.smoke-status{display:inline-flex;justify-content:center;align-items:center;border-radius:999px;padding:3px 8px;color:#fff;text-transform:capitalize}
.smoke-row.pass .smoke-status{background:#4d983f}.smoke-row.fail .smoke-status{background:#c62f33}
.toast-area{position:fixed;right:16px;bottom:16px;display:grid;gap:8px;z-index:100}
.toast{background:#2d1d12;color:#fff;border-radius:12px;padding:11px 14px;box-shadow:var(--shadow)}
.toast.error{background:#af2432}.toast.warning{background:#8e6a19}

@media (max-width:1240px){
  .app-shell{padding:12px}
  .app-header{align-items:flex-start;flex-direction:column}
  .header-actions{justify-content:flex-start}
  .grid-main{grid-template-columns:1fr}
  .accent-grid{grid-template-columns:repeat(8,minmax(42px,1fr))}
  .track-header,.track-row{grid-template-columns:56px 52px 82px 156px 104px 72px 72px repeat(var(--steps),var(--cell))}
}
@media (max-width:860px){
  .logo{width:150px;max-height:54px}
  .brand-copy h1{font-size:22px}
  .transport{display:grid;grid-template-columns:1fr;gap:10px}
  .transport-group+.transport-group{border-left:none;border-top:1px solid var(--line);padding-left:0;padding-top:10px}
  .accent-grid{grid-template-columns:repeat(4,minmax(42px,1fr))}
  .track-header,.track-row{grid-template-columns:52px 50px 78px 142px 98px 68px 68px repeat(var(--steps),var(--cell))}
}