:root{color-scheme:dark;--bg:#101214;--bg2:#16191d;--panel:#1c2025;--panel2:#23282e;--text:#f4f6f8;--muted:#9ea8b3;--line:#333a43;--accent:#f2c94c;--accentText:#171717;--danger:#ff7474;--success:#69d59b;--shadow:0 12px 32px rgba(0,0,0,.28);--radius:14px;--radius-sm:9px;--space:18px;--string:#87919d;--fret:#49525c;--marker:#e6e9ed;--markerText:#111;--root:#f2c94c}
html[data-theme="light"]{color-scheme:light;--bg:#f2f3f4;--bg2:#e9ebed;--panel:#fff;--panel2:#f7f8f9;--text:#15191d;--muted:#69737e;--line:#d5d9dd;--accent:#bd8c00;--accentText:#fff;--danger:#bc3434;--success:#167b48;--shadow:0 10px 28px rgba(20,30,40,.1);--string:#68717a;--fret:#c5cbd1;--marker:#26313a;--markerText:#fff;--root:#d39b00}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font:16px/1.5 Arial,Helvetica,sans-serif}body{min-height:100vh}a{color:inherit}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(2rem,5vw,4.5rem);line-height:1.03;letter-spacing:-.04em}h2{font-size:1.35rem}h3{font-size:1rem}.muted{color:var(--muted)}.eyebrow{display:inline-block;color:var(--accent);font-size:.75rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;margin-bottom:10px}.topbar{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 22px;border-bottom:1px solid var(--line);background:var(--bg);position:sticky;top:0;z-index:40}.brand{display:flex;gap:10px;align-items:center;text-decoration:none;font-weight:900;letter-spacing:.04em}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border:1px solid var(--line);border-radius:9px;background:var(--accent);color:var(--accentText);font-weight:900}.topnav{display:flex;gap:6px;align-items:center}.topnav>a{padding:8px 10px;text-decoration:none;color:var(--muted);border-radius:8px}.topnav>a:hover{background:var(--panel);color:var(--text)}.button,.icon-button{border:1px solid var(--line);background:var(--panel2);border-radius:9px;padding:9px 13px;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:7px;font-weight:700}.button:hover,.icon-button:hover{border-color:var(--muted)}.button.primary{background:var(--accent);border-color:var(--accent);color:var(--accentText)}.button.danger{color:var(--danger)}.button.small{padding:6px 9px;font-size:.86rem}.button.large{padding:13px 18px}.icon-button{width:38px;height:38px;padding:0}.button-row{display:flex;gap:10px;flex-wrap:wrap}.flash{max-width:1100px;margin:14px auto;padding:12px 16px;border:1px solid var(--line);border-radius:9px;background:var(--panel)}.flash.error{border-color:color-mix(in srgb,var(--danger),transparent 35%);color:var(--danger)}.flash.success{border-color:color-mix(in srgb,var(--success),transparent 35%)}.landing,.page-shell{max-width:1200px;margin:auto;padding:48px 24px}.hero{min-height:64vh;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}.hero p{font-size:1.2rem;max-width:650px;color:var(--muted)}.hero-demo{display:flex;justify-content:center}.mini-board{width:100%;max-width:530px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.mini-head{padding:14px 18px;border-bottom:1px solid var(--line);font-weight:800}.mini-strings{padding:18px}.mini-strings>div{height:34px;display:grid;grid-template-columns:repeat(8,1fr);align-items:center;border-top:1px solid var(--string);position:relative}.mini-strings i{display:block;width:14px;height:14px;border-radius:50%;justify-self:center}.mini-strings i.on{background:var(--marker)}.mini-strings i.root{background:var(--root);width:18px;height:18px}.feature-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:30px}.feature-strip article{padding:18px;border-top:1px solid var(--line)}.feature-strip span{display:block;color:var(--muted);margin-top:6px}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.auth-shell,.install-shell{max-width:760px;margin:48px auto;padding:0 20px}.auth-card{max-width:480px;margin:auto}.form-stack{display:grid;gap:15px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}label{display:grid;gap:6px;font-size:.9rem;font-weight:700}input,select,textarea{width:100%;border:1px solid var(--line);background:var(--bg2);border-radius:8px;padding:10px 11px;outline:none}textarea{min-height:100px;resize:vertical}input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 2px color-mix(in srgb,var(--accent),transparent 78%)}.install-brand{display:flex;align-items:center;gap:12px;margin-bottom:20px}.install-brand h1{font-size:1.5rem;margin:0}.install-brand p{margin:0;color:var(--muted)}.check-grid{display:grid;gap:8px}.check-row{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding:8px 0}.ok{color:var(--success)}.bad{color:var(--danger)}.page-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:24px}.page-heading h1{font-size:2.2rem;margin-bottom:4px}.page-heading p{color:var(--muted);margin:0}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px}.plan-badge{display:inline-block;border:1px solid var(--accent);color:var(--accent);border-radius:99px;padding:4px 10px;margin-bottom:12px}.detail-list{display:grid;gap:0}.detail-list>div{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--line)}.detail-list dt{color:var(--muted)}.detail-list dd{margin:0}.notification-list{display:grid;gap:10px}.notification{border-bottom:1px solid var(--line);padding-bottom:12px}.notification p{color:var(--muted);margin:5px 0}.notification small{display:block;color:var(--muted);margin-top:4px}.notification.read{opacity:.65}.empty{color:var(--muted);padding:20px 0}.tabs{display:flex;gap:5px;border-bottom:1px solid var(--line);margin-bottom:18px}.tab{border:0;background:transparent;padding:10px 12px;color:var(--muted);border-bottom:2px solid transparent}.tab.active{color:var(--text);border-color:var(--accent)}.library-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.library-item{border:1px solid var(--line);background:var(--panel);border-radius:12px;padding:16px;display:grid;gap:8px}.library-item h3{margin:0}.library-item p{font-size:.9rem;color:var(--muted);margin:0}.library-meta{display:flex;gap:7px;flex-wrap:wrap;font-size:.75rem;color:var(--muted)}.tag{border:1px solid var(--line);border-radius:99px;padding:2px 7px}.item-actions{display:flex;gap:6px;flex-wrap:wrap;margin-top:5px}.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.price{font-size:2.1rem;font-weight:900;letter-spacing:-.04em}.price small{font-size:.85rem;color:var(--muted);font-weight:400}.feature-list{padding-left:18px;color:var(--muted)}
/* Stage */
.stage-app{height:calc(100vh - 64px);display:grid;grid-template-columns:64px 310px minmax(0,1fr);overflow:hidden;transition:grid-template-columns .22s ease}.stage-app.side-collapsed{grid-template-columns:64px 0 minmax(0,1fr)}.tool-rail{background:var(--bg);border-right:1px solid var(--line);padding:10px 8px;display:flex;flex-direction:column;gap:7px}.tool-rail button,.tool-rail a{width:46px;height:46px;border:1px solid transparent;border-radius:10px;background:transparent;color:var(--muted);display:grid;place-items:center;text-decoration:none;font-size:1.1rem}.tool-rail button:hover,.tool-rail button.active,.tool-rail a:hover{background:var(--panel);color:var(--text);border-color:var(--line)}.side-panel{border-right:1px solid var(--line);background:var(--bg2);overflow:auto;padding:17px;min-width:0;transition:transform .22s ease,opacity .18s ease,padding .22s ease}.stage-app.side-collapsed .side-panel{transform:translateX(-100%);opacity:0;padding-left:0;padding-right:0;border-right:0;pointer-events:none}.panel-toggle.active{background:var(--panel);color:var(--text);border-color:var(--line)}.side-section{border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:16px}.side-section:last-child{border:0}.side-section h2{font-size:.78rem;letter-spacing:.11em;text-transform:uppercase;color:var(--muted);margin-bottom:11px}.side-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px}.side-panel label{font-size:.78rem}.side-panel input,.side-panel select{padding:8px}.stage-main{overflow:auto;background:var(--bg);padding:18px}.stage-toolbar{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:15px}.scene-title{font-size:1.15rem;font-weight:800;background:transparent;border-color:transparent;max-width:360px}.stage-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:14px;align-items:start}.board{grid-column:span 12;background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--shadow);min-width:0}.board.size-half{grid-column:span 6}.board.size-third{grid-column:span 4}.board.selected{outline:2px solid var(--accent);outline-offset:1px}.board-head{height:47px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:9px;padding:0 10px;cursor:grab}.board-head strong{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.board-head .spacer{flex:1}.board-chip{font-size:.72rem;border:1px solid var(--line);border-radius:99px;padding:2px 7px;color:var(--muted)}.board-body{padding:13px;overflow:auto}.fretboard{min-width:680px;border:1px solid var(--line);border-radius:7px;overflow:hidden;background:var(--bg2)}.fretboard.left-handed{direction:rtl}.fret-numbers{display:grid;height:22px;color:var(--muted);font-size:.68rem;text-align:center}.fret-numbers span{border-left:1px solid transparent}.string-row{display:grid;position:relative;height:38px;align-items:center}.string-row:before{content:"";position:absolute;left:0;right:0;top:50%;height:1px;background:var(--string)}.fret-cell{height:38px;border-left:2px solid var(--fret);display:grid;place-items:center;position:relative;z-index:1}.fret-cell:first-child{border-left:0;border-right:4px solid var(--fret)}.note-dot{width:27px;height:27px;border-radius:50%;background:var(--marker);color:var(--markerText);display:grid;place-items:center;font-size:.66rem;font-weight:900;box-shadow:0 1px 4px rgba(0,0,0,.25)}.note-dot.root{background:var(--root);color:var(--accentText)}.note-dot.chord{border-radius:8px}.board-empty{padding:35px;color:var(--muted);text-align:center}.piano{display:flex;height:190px;min-width:700px;padding:0 4px 4px;background:var(--bg2);border:1px solid var(--line);border-radius:7px;position:relative}.white-key{flex:1;border:1px solid #8b9197;background:#f7f7f4;color:#111;position:relative;border-radius:0 0 4px 4px}.white-key .key-note{position:absolute;bottom:7px;left:50%;transform:translateX(-50%)}.black-key{position:absolute;top:0;width:2.15%;height:61%;background:#161616;border:1px solid #000;border-radius:0 0 3px 3px;z-index:2}.white-key.active{background:#d9dce0}.white-key.root-active{background:#f2c94c}.black-key.active:after,.black-key.root-active:after{content:"";position:absolute;width:18px;height:18px;border-radius:50%;background:#e6e9ed;bottom:8px;left:50%;transform:translateX(-50%)}.black-key.root-active:after{background:#f2c94c}.key-note{font-size:.65rem;font-weight:800}.link-options{display:grid;gap:6px}.checkline{display:flex;gap:8px;align-items:center;font-size:.8rem}.checkline input{width:auto}.metronome-panel{display:grid;gap:10px}.tempo-row{display:grid;grid-template-columns:1fr 72px;gap:8px;align-items:center}.tempo-row input[type=range]{padding:0}.beat-lights{display:flex;gap:5px}.beat-lights i{width:9px;height:9px;border-radius:50%;background:var(--line)}.beat-lights i.on{background:var(--accent)}.tuner-readout{text-align:center;padding:16px 4px;border:1px solid var(--line);border-radius:10px}.tuner-note{font-size:2.6rem;font-weight:900}.tuner-cents{color:var(--muted)}.tuner-meter{height:5px;background:var(--line);margin-top:12px;position:relative}.tuner-needle{position:absolute;width:3px;height:17px;background:var(--accent);top:-6px;left:50%}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--muted);display:inline-block}.status-dot.saved{background:var(--success)}.status-dot.dirty{background:var(--accent)}.admin-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.metric{font-size:2rem;font-weight:900}.table-wrap{overflow:auto}.data-table{width:100%;border-collapse:collapse}.data-table th,.data-table td{text-align:left;padding:10px;border-bottom:1px solid var(--line);vertical-align:top}.data-table th{font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
@media(max-width:980px){.topnav>a:not(.button){display:none}.hero{grid-template-columns:1fr}.feature-strip,.pricing-grid,.library-grid{grid-template-columns:1fr 1fr}.stage-app{grid-template-columns:56px 270px minmax(0,1fr)}.board.size-third{grid-column:span 6}.admin-grid{grid-template-columns:1fr 1fr}}
@media(max-width:720px){.topbar{padding:0 10px}.landing,.page-shell{padding:28px 14px}.hero-demo{display:none}.feature-strip,.pricing-grid,.library-grid,.two-col,.form-grid{grid-template-columns:1fr}.page-heading{align-items:flex-start;flex-direction:column}.stage-app{display:block;height:auto}.stage-app.side-collapsed .side-panel{display:none}.tool-rail{height:56px;position:sticky;top:64px;z-index:30;flex-direction:row;border-right:0;border-bottom:1px solid var(--line);padding:5px 8px;overflow:auto}.tool-rail button,.tool-rail a{min-width:44px;height:44px}.side-panel{border-right:0;border-bottom:1px solid var(--line);max-height:44vh}.stage-main{min-height:60vh;padding:10px}.stage-grid{display:block}.board{margin-bottom:12px}.board.size-half,.board.size-third{width:100%}.fretboard{min-width:620px}.stage-toolbar{align-items:flex-start;flex-direction:column}}

.account-link{display:inline-flex;align-items:center;gap:6px}.nav-badge{display:inline-grid;place-items:center;min-width:20px;height:20px;padding:0 6px;border-radius:999px;background:var(--accent);color:var(--accentText);font-size:.72rem;font-weight:800}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.section-heading h2{margin:0}

button:disabled,.button[aria-disabled="true"]{opacity:.45;cursor:not-allowed}

.add-stage-menu{position:relative}.add-stage-menu summary{list-style:none;cursor:pointer}.add-stage-menu summary::-webkit-details-marker{display:none}.add-stage-menu[open] summary{border-color:var(--accent)}.add-stage-options{display:flex;gap:6px;flex-wrap:wrap;margin-top:7px}