:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#0a0b0e;--bg-elevated:#101218;--surface:#15181f;--surface-2:#1c2029;--surface-3:#232833;--border:#ffffff12;--border-strong:#ffffff21;--text:#f4f2ee;--text-dim:#a2a8b6;--text-muted:#7b8292;--accent:#eda15c;--accent-strong:#f7bc7d;--accent-soft:#eda15c24;--accent-line:#eda15c61;--mint:#7fd8bd;--mint-soft:#7fd8bd24;--danger:#e2705f;--danger-soft:#e2705f24;--shadow-1:0 1px 2px #0006;--shadow-2:0 10px 30px #00000073;--radius-sm:8px;--radius:14px;--radius-lg:22px;--font:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono:ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;--step-0:.9375rem;--step-1:1.0625rem;--step-2:1.25rem;--step-3:1.6rem;--step-4:2.1rem;--step-5:2.8rem;--tap:46px;--maxw:1080px;--nav-h:62px}[data-theme=light]{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f6f4f0;--bg-elevated:#fff;--surface:#fff;--surface-2:#f1efe9;--surface-3:#e8e5dd;--border:#18140e1a;--border-strong:#18140e33;--text:#1a1712;--text-dim:#5c564c;--text-muted:#7b7568;--accent:#ac5a10;--accent-strong:#96500e;--accent-soft:#ac5a101f;--accent-line:#ac5a1057;--mint:#137e61;--mint-soft:#137e611f;--danger:#b8442f;--danger-soft:#b8442f1f;--shadow-1:0 1px 2px #18140e14;--shadow-2:0 10px 30px #18140e1a}*,:before,:after{box-sizing:border-box}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:var(--step-1);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;overscroll-behavior-y:none;margin:0;line-height:1.5}h1,h2,h3,h4{letter-spacing:-.015em;margin:0;font-weight:650;line-height:1.2}p{margin:0}button{font:inherit;color:inherit}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}:focus-visible{outline:2px solid var(--accent-strong);outline-offset:2px;border-radius:4px}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}}.app{background:radial-gradient(1100px 520px at 50% -10%, #eda15c12, transparent 70%), var(--bg);flex-direction:column;min-height:100%;display:flex}.app-header{z-index:20;padding:12px max(16px, env(safe-area-inset-left)) 12px max(16px, env(safe-area-inset-right));background:color-mix(in srgb, var(--bg) 88%, transparent);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);align-items:center;gap:12px;display:flex;position:sticky;top:0}.brand{align-items:center;gap:10px;min-width:0;min-height:44px;margin-right:auto;display:flex}.brand-word{font-size:var(--step-2);letter-spacing:.16em;text-transform:uppercase;background:linear-gradient(100deg, var(--text) 25%, var(--accent-strong));color:#0000;-webkit-background-clip:text;background-clip:text;font-weight:700}.brand-sub{font-size:var(--step-0);color:var(--text-muted);white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.app-main{width:100%;max-width:var(--maxw);padding:20px max(16px, env(safe-area-inset-left)) calc(var(--nav-h) + 32px) max(16px, env(safe-area-inset-right));flex:1;margin:0 auto}.app-main--focus{max-width:900px;padding-bottom:24px}.tabbar{z-index:30;height:calc(var(--nav-h) + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:color-mix(in srgb, var(--bg-elevated) 94%, transparent);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-top:1px solid var(--border);grid-template-columns:repeat(4,1fr);gap:2px;display:grid;position:fixed;bottom:0;left:0;right:0}.tab{min-height:var(--tap);color:var(--text-muted);letter-spacing:.02em;cursor:pointer;background:0 0;border:0;flex-direction:column;justify-content:center;align-items:center;gap:3px;font-size:.6875rem;text-decoration:none;display:flex}.tab[aria-current=page]{color:var(--accent)}.tab:hover{color:var(--text-dim);text-decoration:none}.tab svg{width:22px;height:22px}@media (min-width:900px){.app-main{padding-bottom:40px}.tabbar{-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;border:0;grid-template-columns:repeat(4,minmax(96px,auto));justify-content:center;height:auto;padding:0;position:sticky;top:0}}.btn{min-height:var(--tap);border-radius:var(--radius);border:1px solid var(--border-strong);background:var(--surface-2);color:var(--text);font-size:var(--step-1);cursor:pointer;-webkit-user-select:none;user-select:none;justify-content:center;align-items:center;gap:8px;padding:0 20px;font-weight:560;text-decoration:none;transition:transform 80ms,background .15s,border-color .15s;display:inline-flex}.btn:hover{border-color:var(--border-strong);background:var(--surface-3)}.btn:active{transform:scale(.985)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn:hover{text-decoration:none}.btn--primary{background:linear-gradient(180deg, var(--accent-strong), var(--accent));color:#1b1206;border-color:#0000;font-weight:680;box-shadow:0 6px 20px #eda15c38}.btn--primary:hover{background:var(--accent-strong)}.btn--ghost{border-color:var(--border);background:0 0}.btn--quiet{color:var(--text-dim);background:0 0;border-color:#0000}.btn--danger{background:var(--danger-soft);color:var(--danger);border-color:#0000}.btn--block{width:100%}.btn--lg{min-height:58px;font-size:var(--step-2);border-radius:var(--radius-lg)}.btn--sm{min-height:44px;font-size:var(--step-0);border-radius:var(--radius-sm);padding:0 14px}.btn-row{flex-wrap:wrap;gap:10px;display:flex}.btn-row>.btn{flex:160px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);padding:18px}.card+.card{margin-top:14px}.card-title{font-size:var(--step-0);text-transform:uppercase;letter-spacing:.12em;color:var(--text-muted);margin-bottom:10px;font-weight:620}.stack{flex-direction:column;gap:14px;display:flex}.row{align-items:center;gap:12px;display:flex}.row--between{justify-content:space-between}.wrap{flex-wrap:wrap}.spacer{flex:1}.muted{color:var(--text-dim)}.muted-2{color:var(--text-muted)}.small{font-size:var(--step-0)}.tiny{font-size:.8125rem}.mono{font-family:var(--font-mono)}.center{text-align:center}.hero{border-radius:var(--radius-lg);border:1px solid var(--border);background:radial-gradient(600px 240px at 8% 0%, var(--accent-soft), transparent 70%), var(--surface);padding:22px;position:relative;overflow:hidden}.hero-eyebrow{letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-size:.8125rem;font-weight:640}.hero-level{font-size:var(--step-0);color:var(--text-dim);margin-top:12px}.hero-title{font-size:var(--step-4);margin-top:4px}.hero-objective{color:var(--text-dim);max-width:56ch;margin-top:10px}.hero-foot{flex-wrap:wrap;align-items:center;gap:18px;margin-top:20px;display:flex}.metrics{grid-template-columns:repeat(auto-fit,minmax(132px,1fr));gap:10px;margin-top:14px;display:grid}.metric{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px}.metric-label{text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);font-size:.75rem}.metric-value{font-size:var(--step-3);font-variant-numeric:tabular-nums;margin-top:4px;font-weight:660}.metric-unit{font-size:var(--step-0);color:var(--text-muted);font-weight:500}.ring{flex:none;width:76px;height:76px;position:relative}.ring svg{transform:rotate(-90deg)}.ring-track{stroke:var(--surface-3)}.ring-fill{stroke:var(--accent);stroke-linecap:round;transition:stroke-dashoffset .5s}.ring-label{font-size:var(--step-0);font-variant-numeric:tabular-nums;justify-content:center;align-items:center;font-weight:660;display:flex;position:absolute;top:0;bottom:0;left:0;right:0}.progress-line{background:var(--surface-3);border-radius:99px;height:8px;overflow:hidden}.progress-line>span{background:linear-gradient(90deg, var(--accent), var(--accent-strong));border-radius:99px;height:100%;transition:width .4s;display:block}.exercise-head{flex-direction:column;gap:6px;margin-bottom:16px;display:flex}.exercise-breadcrumb{letter-spacing:.1em;text-transform:uppercase;color:var(--accent);font-size:.8125rem;font-weight:620}.exercise-title{font-size:var(--step-3)}.exercise-objective{color:var(--text-dim)}.review-chip{background:var(--mint-soft);color:var(--mint);letter-spacing:.06em;text-transform:uppercase;border-radius:99px;align-self:flex-start;align-items:center;gap:6px;padding:4px 10px;font-size:.75rem;font-weight:620;display:inline-flex}.grid-panel{border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--surface);padding:16px 14px;overflow:hidden}.grid-toggles{flex-wrap:wrap;gap:8px;margin-bottom:12px;display:flex}.chip{border:1px solid var(--border);min-height:44px;color:var(--text-muted);letter-spacing:.03em;cursor:pointer;background:0 0;border-radius:99px;padding:0 16px;font-size:.8125rem;font-weight:580}.chip[aria-pressed=true]{background:var(--accent-soft);border-color:var(--accent-line);color:var(--accent-strong)}.grid-scroll{padding-bottom:4px;overflow-x:auto}.grid{gap:12px;min-width:min-content;display:flex}.grid-bar{border-radius:var(--radius);background:var(--surface-2);border:1px solid var(--border);gap:2px;padding:8px 10px;display:grid;position:relative}.grid-row{align-items:center;gap:2px;display:grid}.grid-row--label:before{content:attr(data-label);letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted);font-size:.625rem;display:none;position:absolute;left:6px;transform:translateY(-50%)}.cell{min-width:30px;height:34px;color:var(--text-dim);font-variant-numeric:tabular-nums;border-radius:6px;justify-content:center;align-items:center;display:flex;position:relative}.cell--beatline:after{content:"";background:var(--border-strong);width:1px;position:absolute;top:3px;bottom:3px;left:-1px}.cell--active{background:var(--accent-soft);color:var(--accent-strong)}.cell--active-accent{background:var(--accent);color:#1b1206;font-weight:700}.cell--playhead:before{content:"";background:var(--mint-soft);border:1px solid color-mix(in srgb, var(--mint) 45%, transparent);border-radius:6px;position:absolute;top:1px;bottom:1px;left:1px;right:1px}.cell--count{height:24px;color:var(--text-muted);font-size:.8125rem}.cell--count.is-beat{color:var(--text);font-weight:640}.cell--strum{height:30px;color:var(--text);font-size:1.0625rem}.cell--strum.is-accent{color:var(--accent);font-weight:700}.cell--strum.is-mute{color:var(--danger)}.cell--chord{height:20px;color:var(--mint);font-size:.75rem}.glyph-svg{display:block}.staff-wrap{margin-bottom:12px;padding:6px 0 0;overflow-x:auto}.staff-fallback{color:var(--text-muted);padding:6px 0 12px;font-size:.8125rem}.metro{bottom:calc(var(--nav-h) + 8px);z-index:10;border-radius:var(--radius-lg);border:1px solid var(--border-strong);background:color-mix(in srgb, var(--surface) 94%, transparent);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);margin-top:14px;padding:14px;position:sticky}.metro-top{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.bpm-display{font-size:var(--step-4);font-variant-numeric:tabular-nums;min-width:3.4ch;font-weight:700;line-height:1}.bpm-unit{font-size:var(--step-0);color:var(--text-muted);font-weight:500}.beat-lamps{align-items:center;gap:6px;display:flex}.lamp{background:var(--surface-3);border-radius:50%;width:12px;height:12px;transition:background .12s,transform .12s}.lamp.is-on{background:var(--accent);transform:scale(1.25)}.lamp.is-accent.is-on{background:var(--accent-strong);box-shadow:0 0 12px var(--accent-line)}.lamp.is-sub{width:8px;height:8px}.lamp.is-sub.is-on{background:var(--text-dim);transform:scale(1.2)}.beat-number{min-width:42px;font-size:var(--step-3);color:var(--accent-strong);font-variant-numeric:tabular-nums;justify-content:center;gap:6px;font-weight:700;display:flex}.countin-strip{border-radius:var(--radius);border:1px solid var(--accent-line);background:var(--accent-soft);align-items:center;gap:12px;margin-top:12px;padding:10px 16px;display:flex}.countin-label{letter-spacing:.14em;text-transform:uppercase;color:var(--accent-strong);font-size:.75rem;font-weight:680}.countin-beat{font-size:var(--step-3);color:var(--text);font-variant-numeric:tabular-nums;text-align:center;min-width:1.4ch;font-weight:700;line-height:1}.countin-hint{color:var(--text-dim);text-align:right;margin-left:auto;font-size:.8125rem}.slider{-webkit-appearance:none;appearance:none;cursor:pointer;background:0 0;width:100%;height:44px}.slider::-webkit-slider-runnable-track{background:var(--surface-3);border-radius:99px;height:6px}.slider::-webkit-slider-thumb{-webkit-appearance:none;background:var(--accent);border:2px solid var(--bg);width:26px;height:26px;box-shadow:var(--shadow-1);border-radius:50%;margin-top:-10px}.slider::-moz-range-track{background:var(--surface-3);border-radius:99px;height:6px}.slider::-moz-range-thumb{background:var(--accent);border:2px solid var(--bg);border-radius:50%;width:24px;height:24px}.stepper{gap:6px;display:flex}.field{flex-direction:column;gap:6px;display:flex}.field-label{text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);font-size:.75rem}select,input[type=text],input[type=number]{min-height:var(--tap);border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface-2);color:var(--text);font:inherit;width:100%;padding:0 12px}.switch-row{min-height:var(--tap);justify-content:space-between;align-items:center;gap:12px;display:flex}.switch{cursor:pointer;background:0 0;border:0;flex:none;width:56px;height:44px;position:relative}.switch:before{content:"";border:1px solid var(--border-strong);background:var(--surface-3);border-radius:99px;transition:background .16s,border-color .16s;position:absolute;top:7px;bottom:7px;left:2px;right:2px}.switch:after{content:"";background:var(--text-dim);border-radius:50%;width:22px;height:22px;transition:transform .16s,background .16s;position:absolute;top:11px;left:5px}.switch[aria-checked=true]:before{background:var(--accent-soft);border-color:var(--accent-line)}.switch[aria-checked=true]:after{background:var(--accent);transform:translate(24px)}.level-list{flex-direction:column;gap:8px;display:flex}.level-item{border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);align-items:center;gap:12px;padding:12px 14px;display:flex}.level-item.is-current{border-color:var(--accent-line);background:var(--accent-soft)}.level-item.is-locked{opacity:.55}.level-badge{background:var(--surface-3);width:34px;height:34px;color:var(--text-dim);border-radius:50%;flex:none;justify-content:center;align-items:center;font-size:.875rem;font-weight:680;display:flex}.level-item.is-done .level-badge{background:var(--mint-soft);color:var(--mint)}.level-item.is-current .level-badge{background:var(--accent);color:#1b1206}.level-meta{flex:1;min-width:0}.level-name{font-weight:600}.level-count{color:var(--text-muted);font-size:.8125rem}.exercise-dots{flex-wrap:wrap;gap:4px;margin-top:8px;display:flex}.dot{cursor:pointer;background:0 0;border:0;width:24px;height:24px;padding:0;position:relative}.dot:after{content:"";background:var(--surface-3);border:1px solid var(--border);border-radius:50%;transition:transform .12s,background .12s;position:absolute;top:6px;bottom:6px;left:6px;right:6px}.dot.is-done:after{background:var(--mint);border-color:#0000}.dot.is-current:after{background:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);border-color:#0000}.dot.is-locked{cursor:not-allowed;opacity:.5}.dot:hover:after{transform:scale(1.15)}.history-row{border-bottom:1px solid var(--border);grid-template-columns:1fr auto;gap:4px 12px;padding:12px 0;display:grid}.history-row:last-child{border-bottom:0}.history-id{font-weight:600}.history-sub{color:var(--text-muted);font-size:.8125rem}.history-right{text-align:right;color:var(--text-dim);font-variant-numeric:tabular-nums;font-size:.8125rem}.sync-badge{border:1px solid var(--border);background:var(--surface-2);min-height:44px;color:var(--text-dim);white-space:nowrap;cursor:pointer;border-radius:99px;justify-content:center;align-items:center;gap:6px;padding:0 14px;font-size:.75rem;font-weight:560;display:inline-flex}.sync-badge[data-state=synced]{color:var(--mint);border-color:color-mix(in srgb, var(--mint) 35%, transparent)}.sync-badge[data-state=offline]{color:var(--text-muted)}.sync-badge[data-state=pending]{color:var(--accent);border-color:var(--accent-line)}.sync-dot{background:currentColor;border-radius:50%;width:7px;height:7px}.banner{border-radius:var(--radius);background:var(--accent-soft);border:1px solid var(--accent-line);color:var(--text);font-size:var(--step-0);align-items:center;gap:10px;margin-bottom:12px;padding:10px 14px;display:flex}.complete-overlay{z-index:60;background:color-mix(in srgb, var(--bg) 78%, transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);justify-content:center;align-items:center;animation:.22s fade;display:flex;position:fixed;top:0;bottom:0;left:0;right:0}.complete-card{text-align:center;border-radius:var(--radius-lg);border:1px solid var(--border-strong);background:var(--surface);width:min(420px,100vw - 32px);box-shadow:var(--shadow-2);padding:30px 24px;animation:.3s rise}.complete-mark{background:var(--mint-soft);width:62px;height:62px;color:var(--mint);border-radius:50%;justify-content:center;align-items:center;margin:0 auto 14px;display:flex}@keyframes fade{0%{opacity:0}to{opacity:1}}@keyframes rise{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}.onboarding{min-height:100dvh;padding:32px 20px calc(32px + env(safe-area-inset-bottom));text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:18px;display:flex}.onboarding h1{font-size:var(--step-5)}.onboarding .lede{max-width:40ch;color:var(--text-dim)}.pulse-logo{width:112px;height:112px}.slides{text-align:left;flex-direction:column;gap:16px;max-width:44ch;display:flex}.slide{align-items:flex-start;gap:14px;display:flex}.slide-num{background:var(--accent-soft);width:30px;height:30px;color:var(--accent);border-radius:50%;flex:none;justify-content:center;align-items:center;font-size:.875rem;font-weight:680;display:flex}.dots-nav{justify-content:center;gap:7px;display:flex}.dots-nav span{background:var(--surface-3);border-radius:50%;width:7px;height:7px}.dots-nav span.is-on{background:var(--accent)}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.kbd{border:1px solid var(--border-strong);background:var(--surface-2);font-family:var(--font-mono);border-radius:5px;padding:1px 6px;font-size:.8125rem;display:inline-block}.tip-list{flex-direction:column;gap:8px;display:flex}.tip{color:var(--text-dim);font-size:var(--step-0);gap:10px;display:flex}.tip:before{content:"·";color:var(--accent);font-weight:800}.session-steps{color:var(--text-muted);flex-wrap:wrap;align-items:center;gap:6px;font-size:.8125rem;display:flex}.session-steps .arrow{color:var(--accent)}.table{border-collapse:collapse;width:100%;font-size:var(--step-0)}.table th,.table td{text-align:left;border-bottom:1px solid var(--border);padding:8px 10px 8px 0}.table th{color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;font-size:.75rem;font-weight:600}.table td{color:var(--text-dim)}.table td:first-child{color:var(--text)}