:root{--surface:#131313;--surface-container-lowest:#0e0e0e;--surface-container-low:#1c1b1b;--on-surface:#e5e2e1;--bells-tint:#c4c4e0;--bells-tint-dim:#44455c;--marimba-tint:#ffb4a4;--marimba-tint-dim:#c84b31;--bass-tint:#a78a84;--key-gutter:2px;--wood:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='240'%3E%3Cfilter id='w'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.55 0.006' numOctaves='4' seed='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='120' height='240' filter='url(%23w)' opacity='0.3'/%3E%3C/svg%3E");--brushed:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='b'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9 0.015' numOctaves='3' seed='9' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23b)' opacity='0.2'/%3E%3C/svg%3E");--grain:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' seed='5' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.22'/%3E%3C/svg%3E")}*{box-sizing:border-box}html,body{background:var(--surface);height:100%;color:var(--on-surface);overscroll-behavior:none;margin:0;font-family:Inter,system-ui,sans-serif}a{color:inherit}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}#instrument{touch-action:none;-webkit-user-select:none;user-select:none;background:var(--surface-container-lowest);flex-direction:column;height:100dvh;display:flex;position:relative}.band{gap:var(--key-gutter);padding:var(--key-gutter);isolation:isolate;flex:1 1 0;min-height:5.5rem;display:flex;position:relative}.band[data-band-container=marimba]{flex-grow:2}.band:before{content:"";z-index:-1;background-image:linear-gradient(180deg, #ffffff12, transparent 42%, #00000052), var(--band-material);position:absolute;inset:0;box-shadow:inset 0 0 90px #00000080,inset 0 1px #ffffff0f}.band[data-band-container=bells]{--band-material:linear-gradient(100deg, transparent 20%, #c4c4e017 42%, transparent 62%);background:color-mix(in srgb, var(--bells-tint-dim) 55%, var(--surface))}.band[data-band-container=marimba]{--band-material:none;background:color-mix(in srgb, var(--marimba-tint-dim) 40%, var(--surface))}.band[data-band-container=bass]{--band-material:radial-gradient(120% 90% at 50% 0%, #a78a841f, transparent 70%);background:var(--surface-container-lowest)}.band-label{letter-spacing:.2em;text-transform:uppercase;opacity:.85;pointer-events:none;z-index:1;text-shadow:0 1px 4px #000000d9;gap:.6rem;font-size:11px;font-weight:600;line-height:13px;display:flex;position:absolute;top:.6rem;left:.85rem}.band-range{opacity:.6;letter-spacing:.1em;font-weight:400}[data-band-container=bells] .band-label{color:var(--bells-tint)}[data-band-container=marimba] .band-label{color:var(--marimba-tint)}[data-band-container=bass] .band-label{color:var(--bass-tint)}.column{background-color:var(--surface-container-low);background-image:var(--key-texture,var(--grain));background-size:var(--key-texture-size,140px 140px);background-blend-mode:overlay;border-radius:4px;flex:12.5%;transition:transform .12s,box-shadow .13s,background-color .13s;position:relative;overflow:hidden;box-shadow:inset 0 1px #ffffff0d,inset 0 -1px #00000073,inset 0 0 22px #00000059}[data-band-container=bells] .column{--key-texture:var(--brushed);--key-texture-size:120px 120px;background-color:color-mix(in srgb, var(--bells-tint) 13%, var(--surface-container-low))}[data-band-container=marimba] .column{--key-texture:var(--wood);--key-texture-size:120px 240px;background-color:color-mix(in srgb, var(--marimba-tint) 12%, var(--surface-container-low))}[data-band-container=bass] .column{--key-texture:var(--grain);--key-texture-size:140px 140px;background-color:color-mix(in srgb, var(--bass-tint) 11%, var(--surface-container-low))}.note{text-align:center;letter-spacing:.09em;opacity:.55;pointer-events:none;text-shadow:0 1px 3px #000c;font-size:10px;font-weight:500;position:absolute;bottom:.55rem;left:0;right:0}.column:focus-visible{outline:2px solid var(--on-surface);outline-offset:-4px;z-index:2}.column.is-active{transform:scale(.965)}[data-band-container=bells] .column.is-active{box-shadow:inset 0 0 26px 7px var(--bells-tint), 0 0 22px -2px color-mix(in srgb, var(--bells-tint) 55%, transparent);background-color:color-mix(in srgb, var(--bells-tint) 30%, var(--surface-container-low))}[data-band-container=marimba] .column.is-active{box-shadow:inset 0 0 26px 7px var(--marimba-tint), 0 0 22px -2px color-mix(in srgb, var(--marimba-tint) 55%, transparent);background-color:color-mix(in srgb, var(--marimba-tint) 30%, var(--surface-container-low))}[data-band-container=bass] .column.is-active{box-shadow:inset 0 0 26px 7px var(--on-surface), 0 0 22px -2px color-mix(in srgb, var(--bass-tint) 55%, transparent);background-color:color-mix(in srgb, var(--bass-tint) 28%, var(--surface-container-low))}.column.is-echo{transition:box-shadow .28s,background-color .28s}[data-band-container=bells] .column.is-echo{box-shadow:inset 0 0 18px 3px color-mix(in srgb, var(--bells-tint) 50%, transparent)}[data-band-container=marimba] .column.is-echo{box-shadow:inset 0 0 18px 3px color-mix(in srgb, var(--marimba-tint) 50%, transparent)}[data-band-container=bass] .column.is-echo{box-shadow:inset 0 0 18px 3px color-mix(in srgb, var(--bass-tint) 50%, transparent)}.column.is-armed:after{content:"";opacity:.8;border-radius:50%;width:5px;height:5px;margin:-2.5px 0 0 -2.5px;animation:.24s armed-in;position:absolute;top:50%;left:50%}[data-band-container=bells] .column.is-armed:after{background:var(--bells-tint);box-shadow:0 0 9px 1px color-mix(in srgb, var(--bells-tint) 60%, transparent)}[data-band-container=marimba] .column.is-armed:after{background:var(--marimba-tint);box-shadow:0 0 9px 1px color-mix(in srgb, var(--marimba-tint) 60%, transparent)}[data-band-container=bass] .column.is-armed:after{background:var(--bass-tint);box-shadow:0 0 9px 1px color-mix(in srgb, var(--bass-tint) 60%, transparent)}@keyframes armed-in{0%{opacity:0;transform:scale(0)}}.bass-readout{pointer-events:none;z-index:1;flex-direction:column;align-items:flex-end;gap:.1rem;display:flex;position:absolute;top:.4rem;right:1rem}.attitude{width:7rem;height:2.4rem;overflow:visible}.attitude line{stroke:var(--on-surface);stroke-linecap:round}.attitude-horizon{stroke-width:1.6px;opacity:.8}.attitude-grade{stroke-width:1px;opacity:.32}.attitude-ref{fill:var(--marimba-tint);opacity:.9}.pulse-bar{z-index:4;opacity:0;pointer-events:none;height:2px;transition:opacity .6s;position:absolute;inset:0 0 auto}.pulse-bar.is-running{opacity:1}.pulse-fill{transform-origin:0;background:linear-gradient(90deg, transparent, color-mix(in srgb, var(--marimba-tint) 75%, transparent));width:100%;height:100%;box-shadow:0 0 10px color-mix(in srgb, var(--marimba-tint) 40%, transparent);transform:scaleX(0)}.tilt-hint{letter-spacing:.14em;text-transform:uppercase;opacity:.5;text-shadow:0 1px 3px #000c;margin:0;font-size:9px}.intro{z-index:6;pointer-events:none;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:radial-gradient(40rem 24rem,#060606f0,#0606069e 62%,#0000),#06060680;place-items:center;padding:1.5rem;transition:opacity .5s,visibility .5s;display:grid;position:fixed;inset:0}.intro.is-dismissed{opacity:0;visibility:hidden}.intro-card{text-align:center;max-width:30rem;animation:.7s cubic-bezier(.2,.7,.3,1) both intro-rise}.intro-lede{letter-spacing:.06em;color:var(--on-surface);margin:0 0 1.6rem;font-size:clamp(1.15rem,4.5vw,1.6rem);font-weight:300}.intro-facts{gap:.7rem;margin:0 0 1.6rem;padding:0;list-style:none;display:grid}.intro-facts li{gap:.15rem;display:grid}.intro-facts b{letter-spacing:.18em;text-transform:uppercase;color:var(--marimba-tint);font-size:11px;font-weight:600}.intro-facts span{letter-spacing:.03em;color:color-mix(in srgb, var(--on-surface) 72%, transparent);font-size:13px;font-weight:300}.intro-meta{letter-spacing:.05em;color:color-mix(in srgb, var(--on-surface) 55%, transparent);flex-wrap:wrap;justify-content:center;gap:.4rem 1.1rem;margin:0;font-size:11px;display:flex}.intro-touch{display:none}@media (hover:none) and (pointer:coarse){.intro-keys{display:none}.intro-touch{display:flex}}.intro-meta kbd{font:inherit;border:1px solid color-mix(in srgb, var(--on-surface) 22%, transparent);color:color-mix(in srgb, var(--on-surface) 78%, transparent);border-radius:3px;padding:.1rem .32rem}@keyframes intro-rise{0%{opacity:0;transform:translateY(10px)}}.help{z-index:7;border:1px solid color-mix(in srgb, var(--on-surface) 22%, transparent);width:1.9rem;height:1.9rem;color:color-mix(in srgb, var(--on-surface) 65%, transparent);font:inherit;cursor:pointer;background:#0e0e0eb8;border-radius:50%;font-size:12px;line-height:1;transition:color .15s,border-color .15s,background .15s;position:fixed;top:.75rem;right:.85rem}.help:hover,.help:focus-visible{color:var(--on-surface);border-color:color-mix(in srgb, var(--on-surface) 55%, transparent);background:#141414e6}.help:focus-visible{outline:2px solid var(--on-surface);outline-offset:2px}body.is-cleared #instrument:after{content:"";background:var(--on-surface);opacity:.06;pointer-events:none;z-index:5;animation:.42s forwards fade-out;position:absolute;inset:0}@keyframes fade-out{to{opacity:0}}@media (prefers-reduced-motion:reduce){.column,.pulse-bar,.column.is-armed:after,.intro,.intro-card{transition-duration:1ms;animation:none}}