/* Shared tokens for both themes; components only reference these. */
:root{color-scheme:light;--bg:#f3f1ec;--surface:#fbfaf7;--soft:#ebe8e1;--ink:#1f2023;--muted:#66676c;--line:#d9d5cc;--accent:#b9492f;--accent-ink:#fff;--on:#e9b3a3;--cell:#e5e1d8;--cell-alt:#dcd7cc;--now:#1f2023;--shadow:0 24px 70px #3a2c1c14;--header:rgba(243,241,236,.92)}
:root[data-theme=dark]{color-scheme:dark;--bg:#141414;--surface:#1c1c1e;--soft:#252527;--ink:#f1eee8;--muted:#a4a3a6;--line:#333336;--accent:#f08c6d;--accent-ink:#2a120a;--on:#7a3f2f;--cell:#29292c;--cell-alt:#313134;--now:#f1eee8;--shadow:0 24px 70px #0006;--header:rgba(20,20,20,.92)}
@media(prefers-color-scheme:dark){:root:not([data-theme]){color-scheme:dark;--bg:#141414;--surface:#1c1c1e;--soft:#252527;--ink:#f1eee8;--muted:#a4a3a6;--line:#333336;--accent:#f08c6d;--accent-ink:#2a120a;--on:#7a3f2f;--cell:#29292c;--cell-alt:#313134;--now:#f1eee8;--shadow:0 24px 70px #0006;--header:rgba(20,20,20,.92)}}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:Arial,Helvetica,sans-serif;font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit}
button,input{font:inherit;color:inherit}
button{cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
button:disabled{cursor:not-allowed;opacity:.45}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:4px}
svg{display:block}
.wrap{width:min(1180px,calc(100% - 64px));margin-inline:auto}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.skip{position:absolute;left:16px;top:-60px;z-index:20;background:var(--ink);color:var(--bg);padding:10px 14px;border-radius:8px}
.skip:focus{top:12px}

/* Header and menu */
.topbar{position:sticky;top:0;z-index:10;background:var(--header);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.topbar-inner{display:flex;align-items:center;gap:32px;height:68px}
.brand{font-weight:700;font-size:20px;letter-spacing:-.03em;text-decoration:none}
.brand span,.menu-head span{color:var(--accent)}
.desktop-nav{display:flex;gap:28px;margin-left:auto;font-size:15px}
.desktop-nav a{text-decoration:none;color:var(--muted)}
.desktop-nav a:hover{color:var(--ink)}
.topbar-actions{display:flex;gap:8px}
.icon-button{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:50%;border:1px solid var(--line);background:var(--surface)}
.icon-button:hover{border-color:var(--muted)}
.icon-button svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
.theme-toggle .moon{fill:currentColor;stroke:none}
.theme-toggle .moon,[data-theme=dark] .theme-toggle .sun{display:none}
[data-theme=dark] .theme-toggle .moon{display:block}
.menu-toggle{display:none}
.menu{width:min(420px,100%);height:100%;max-height:none;margin:0 0 0 auto;padding:20px 24px;border:0;background:var(--bg);color:var(--ink)}
.menu::backdrop{background:#0007}
.menu-head{display:flex;justify-content:space-between;align-items:center}
.menu-head h2{margin:0;font-size:20px;letter-spacing:-.03em}
.menu nav{display:grid;margin-top:32px}
.menu nav a{padding:16px 0;border-bottom:1px solid var(--line);font-size:22px;text-decoration:none}

/* Intro */
.intro{padding:64px 0 32px;max-width:760px;margin-left:max(32px,calc((100% - 1180px)/2))}
.eyebrow{margin:0 0 12px;color:var(--accent);font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}
h1{margin:0;font-size:clamp(38px,6vw,64px);line-height:1.02;letter-spacing:-.045em;font-weight:700}
.intro p:last-child{margin:20px 0 0;color:var(--muted);font-size:18px;max-width:620px}

/* Machine panel */
.machine{background:var(--surface);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:24px;margin-bottom:72px}
.machine:focus{outline:none}
.transport{display:flex;flex-wrap:wrap;align-items:end;gap:20px 28px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.play{display:inline-flex;align-items:center;gap:10px;height:52px;padding:0 24px 0 20px;border:0;border-radius:14px;background:var(--accent);color:var(--accent-ink);font-weight:700;font-size:17px}
.play-icon{width:0;height:0;border-left:13px solid currentColor;border-top:8px solid transparent;border-bottom:8px solid transparent}
.play[aria-pressed=true] .play-icon{width:13px;height:13px;border:0;background:currentColor;border-radius:2px}
.control{display:grid;gap:6px;min-width:150px}
.control label,.control .label{font-size:13px;color:var(--muted);display:flex;justify-content:space-between;gap:12px}
.control output{color:var(--ink);font-variant-numeric:tabular-nums}
.tempo-input{display:flex;align-items:center;height:44px;border:1px solid var(--line);border-radius:12px;background:var(--bg);overflow:hidden}
.tempo-input input{width:52px;border:0;background:none;text-align:right;font-size:20px;font-weight:700;font-variant-numeric:tabular-nums;-moz-appearance:textfield;appearance:textfield}
.tempo-input input::-webkit-inner-spin-button,.tempo-input input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}
.tempo-input span{color:var(--muted);font-size:12px;margin:0 6px 0 5px}
.nudge{width:38px;height:100%;border:0;background:none;font-size:20px;color:var(--muted)}
.nudge:hover{background:var(--soft);color:var(--ink)}
input[type=range]{width:100%;accent-color:var(--accent);height:28px;margin:0}
.patterns{display:flex;gap:6px}
.patterns button{position:relative;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--bg);font-weight:700}
.patterns button[aria-pressed=true]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.patterns button.empty span{opacity:.5}
.patterns button.queued{border-color:var(--accent);animation:queued 1s steps(2) infinite}
@keyframes queued{50%{background:var(--soft)}}
.switch{display:inline-flex;align-items:center;gap:10px;height:44px;font-size:15px;cursor:pointer;user-select:none}
.switch input{position:absolute;opacity:0;width:1px;height:1px}
.switch-track{width:40px;height:24px;border-radius:12px;background:var(--cell-alt);position:relative;transition:background .2s}
.switch-track::after{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:var(--surface);box-shadow:0 1px 3px #0003;transition:transform .2s}
.switch input:checked+.switch-track{background:var(--accent)}
.switch input:checked+.switch-track::after{transform:translateX(16px)}
.switch input:focus-visible+.switch-track{outline:3px solid var(--accent);outline-offset:3px}
.scope{margin-left:auto;width:220px;height:52px;border-radius:12px;background:var(--bg);border:1px solid var(--line)}

/* Step grid */
.pages{display:none}
.grid{display:grid;gap:6px;padding:22px 0}
.row{display:grid;grid-template-columns:256px repeat(16,minmax(0,1fr));gap:5px;align-items:center}
.row.head{font-size:11px;color:var(--muted);text-align:center;font-variant-numeric:tabular-nums}
.beat-number.downbeat{color:var(--ink);font-weight:700}
.beat-number.now{color:var(--accent)}
.track{display:grid;grid-template-columns:1fr 30px 30px 64px;gap:5px;align-items:center;padding-right:10px}
.track-name{height:40px;text-align:left;padding:0 12px;border-radius:10px;border:1px solid transparent;background:none;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.track-name:hover{background:var(--soft)}
.track-name[aria-pressed=true]{border-color:var(--line);background:var(--bg);font-weight:700}
.track-name .short{display:none}
.mute,.solo{height:30px;border-radius:8px;border:1px solid var(--line);background:none;font-size:12px;font-weight:700;color:var(--muted)}
.mute[aria-pressed=true]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.solo[aria-pressed=true]{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.row.silent .cell{opacity:.4}
.cell{aspect-ratio:1;max-height:52px;width:100%;min-height:34px;border:0;border-radius:9px;background:var(--cell);transition:background .08s,transform .08s;position:relative}
.cell.alt{background:var(--cell-alt)}
.cell:hover{filter:brightness(.96)}
.cell[data-state="1"]{background:var(--on)}
.cell[data-state="2"]{background:var(--accent)}
.cell.now{box-shadow:inset 0 0 0 2px var(--now)}
.cell.now[data-state="1"],.cell.now[data-state="2"]{transform:scale(.92)}
.cell:active{transform:scale(.9)}

/* Tools */
.toolbar{display:flex;flex-wrap:wrap;justify-content:space-between;gap:20px;padding-top:22px;border-top:1px solid var(--line)}
.track-tools{display:flex;flex-wrap:wrap;align-items:end;gap:16px 24px}
.track-tools h2{flex-basis:100%;margin:0;font-size:14px;font-weight:400;color:var(--muted)}
.track-tools h2 span{color:var(--ink);font-weight:700}
.button-row,.pattern-tools{display:flex;flex-wrap:wrap;gap:8px;align-items:end}
.pattern-tools{flex-basis:100%}
#share{margin-left:auto}
.toolbar button{height:40px;padding:0 14px;border-radius:10px;border:1px solid var(--line);background:var(--bg);font-size:14px}
.toolbar button:hover:not(:disabled){border-color:var(--muted)}
.toolbar button.primary{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.status{min-height:24px;margin:14px 0 0;font-size:14px;color:var(--muted)}

/* Guide */
.guide{padding:0 0 72px}
.guide h2{margin:0 0 24px;font-size:32px;letter-spacing:-.03em}
.guide-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;border-top:1px solid var(--line);padding-top:28px}
.guide h3{margin:0 0 8px;font-size:16px}
.guide p{margin:0;color:var(--muted);font-size:15px}
.keys{margin:0;display:grid;gap:8px;font-size:14px}
.keys div{display:grid;grid-template-columns:96px 1fr;gap:8px}
.keys dd{margin:0;color:var(--muted)}
kbd{display:inline-block;padding:1px 7px;border:1px solid var(--line);border-bottom-width:2px;border-radius:6px;background:var(--surface);font:12px/1.6 ui-monospace,Menlo,monospace}
.footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding:24px 0 40px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}
.noscript{position:fixed;inset:auto 16px 16px;padding:14px;border-radius:12px;background:var(--ink);color:var(--bg)}

@media(max-width:1020px){
 .scope{display:none}
 .row{grid-template-columns:196px repeat(16,minmax(0,1fr));gap:4px}
 .track{grid-template-columns:1fr 28px 28px;padding-right:6px}
 .track .volume{display:none}
 .guide-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:820px){
 .desktop-nav{display:none}
 .menu-toggle{display:inline-grid}
 .topbar-actions{margin-left:auto}
}
/* Phones show eight steps at a time, switched with the step tabs. */
@media(max-width:720px){
 .wrap{width:calc(100% - 32px)}
 .intro{margin-left:16px;padding:40px 0 24px}
 .intro p:last-child{font-size:16px}
 .machine{padding:16px;border-radius:18px;margin-bottom:48px}
 .transport{gap:16px}
 .transport .control{min-width:0;flex:1 1 140px}
 .play{flex:1 1 100%;justify-content:center}
 .pages{display:flex;gap:6px;padding-top:16px}
 .pages button{flex:1;height:38px;border-radius:10px;border:1px solid var(--line);background:var(--bg);font-size:14px}
 .pages button[aria-pressed=true]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
 .grid{padding:14px 0 18px}
 .row{grid-template-columns:96px repeat(8,minmax(0,1fr))}
 .grid[data-page="0"] .row>:nth-child(n+10),.grid[data-page="1"] .row>:nth-child(n+2):nth-child(-n+9){display:none}
 .track{grid-template-columns:1fr 24px 24px;gap:3px;padding-right:2px}
 .track-name{padding:0 4px;font-size:12px;height:36px}
 .track-name .full{display:none}
 .track-name .short{display:inline}
 .mute,.solo{height:28px;font-size:11px;border-radius:6px}
 .cell{min-height:32px;border-radius:7px}
 .toolbar button{flex:1 1 auto}
 .guide-grid{grid-template-columns:1fr;gap:24px}
}
@media(prefers-reduced-motion:reduce){
 html{scroll-behavior:auto}
 *,*::before,*::after{transition:none!important;animation:none!important}
}