:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f4f6f8;--surface:#fff;--surface-soft:#f8fafc;--text:#101828;--muted:#667085;--line:#d9e2ec;--line-strong:#c5d0dc;--accent:#1769aa;--accent-dark:#0f4f82;--green:#4f9f83;--green-dark:#3d8269;--red:#e25555;--red-dark:#c83f3f;--gold:#b7822c;--shadow:0 22px 60px #10182817;font-synthesis:none;letter-spacing:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html{background:var(--bg);min-width:320px}body{background:linear-gradient(90deg, #10182809 1px, transparent 1px), linear-gradient(180deg, #10182809 1px, transparent 1px), var(--bg);min-width:320px;min-height:100vh;color:var(--text);background-size:32px 32px;margin:0}button,input,select{font:inherit;letter-spacing:0}button{color:#fff;cursor:pointer;border:0;border-radius:6px;min-height:44px;font-size:15px;font-weight:800;transition:transform .16s,background .16s,border-color .16s,box-shadow .16s}button:not(:disabled):hover{transform:translateY(-1px)}button:disabled{cursor:not-allowed;opacity:.45}button:focus-visible,input:focus-visible,select:focus-visible{outline-offset:2px;outline:3px solid #1769aa38}.app-shell{width:min(1420px,100% - 28px);margin:32px auto}.app-header{justify-content:space-between;align-items:center;gap:18px;margin-bottom:18px;display:flex}.brand{align-items:center;gap:12px;display:flex}.brand-mark{border:1px solid var(--line);background:var(--surface);border-radius:8px;grid-template-columns:repeat(5,1fr);align-items:center;gap:3px;width:44px;height:44px;padding:9px;display:grid;box-shadow:0 10px 26px #10182814}.brand-mark span,.visual-bars span{border-radius:999px;width:100%}.brand-mark span:first-child{background:var(--green);height:32%}.brand-mark span:nth-child(2){background:var(--accent);height:72%}.brand-mark span:nth-child(3){background:var(--gold);height:48%}.brand-mark span:nth-child(4){background:var(--red);height:88%}.brand-mark span:nth-child(5){background:var(--accent-dark);height:56%}h1{margin:0;font-size:28px;font-weight:800;line-height:1.16}.header-note{color:var(--muted);margin:4px 0 0;font-size:14px}.live-badge,.state-badge{border:1px solid var(--line);color:var(--muted);background:#ffffffc7;border-radius:999px;flex:none}.live-badge{padding:8px 12px;font-size:13px}.state-badge{white-space:nowrap;padding:7px 10px;font-size:12px;font-weight:800}.state-badge[data-state=running]{color:var(--green-dark);background:#4f9f831a;border-color:#4f9f8361}.state-badge[data-state=paused]{color:#8a611e;background:#b7822c1a;border-color:#b7822c57}.workspace{grid-template-columns:minmax(0,1.32fr) minmax(420px,.68fr);align-items:stretch;gap:20px;display:grid}.surface{border:1px solid var(--line);box-shadow:var(--shadow);background:#fffffff2;border-radius:8px}.practice-surface{min-height:720px;padding:22px}.practice-zone{border:2px dashed var(--line-strong);background:linear-gradient(#f8fafcf5,#fffffffa);border-radius:8px;align-content:start;gap:18px;min-height:674px;padding:28px 30px;display:grid}.panel-heading{justify-content:space-between;align-items:center;gap:12px;display:flex}.practice-readouts{border-block:1px solid #d9e2ecd9;grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.practice-readout{justify-content:space-between;align-items:center;gap:18px;min-width:0;padding:12px 18px;display:flex}.practice-readout+.practice-readout{border-left:1px solid #d9e2ecd9}.practice-readout span{color:var(--muted);font-size:13px;font-weight:800}.practice-readout strong{color:var(--text);font-variant-numeric:tabular-nums;font-weight:900;line-height:1}.measure-readout strong{font-size:42px}.beat-readout strong{color:var(--accent-dark);font-size:22px}.section-label{color:var(--muted);align-items:center;gap:8px;font-size:13px;font-weight:800;display:flex}.section-label:before{background:var(--gold);content:"";border-radius:999px;width:8px;height:8px}.visual-stage{border:1px solid var(--line);background:var(--surface);border-radius:8px;height:320px;transition:background 80ms linear;position:relative;overflow:hidden}.visual-stage.flash{background:#e255550e}.stage-meta{color:var(--muted);justify-content:flex-start;align-items:center;font-size:13px;font-weight:700;display:flex;position:absolute;top:18px;left:20px;right:20px}.indicator-light{background:#edf2f7;border-radius:999px;width:56px;height:10px;transition:background 80ms linear,box-shadow 80ms linear;position:absolute;top:56px;left:50%;transform:translate(-50%)}.indicator-light.active{background:var(--green);box-shadow:0 0 0 7px #4f9f831a}.indicator-light.accent{background:var(--red);box-shadow:0 0 0 7px #e255551a}.pendulum{background:var(--accent-dark);transform-origin:50% 100%;border-radius:999px;width:3px;height:154px;transition:transform .1s ease-out;position:absolute;top:96px;left:50%;transform:rotate(-18deg);box-shadow:0 0 0 1px #0f4f8214}.pendulum.right{transform:rotate(18deg)}.pendulum:before{border:2px solid var(--surface);background:var(--gold);content:"";border-radius:5px;width:22px;height:10px;position:absolute;top:35px;left:50%;transform:translate(-50%);box-shadow:0 4px 10px #b7822c33}.pendulum:after{border:4px solid var(--surface);background:var(--accent);width:18px;height:18px;box-shadow:0 0 0 1px var(--line), 0 5px 12px #1769aa33;content:"";border-radius:50%;position:absolute;bottom:-9px;left:50%;transform:translate(-50%)}.visual-bars{grid-template-columns:repeat(11,1fr);align-items:end;gap:10px;height:54px;display:grid;position:absolute;bottom:22px;left:22px;right:22px}.visual-bars span{background:#d4dee8}.visual-bars span:first-child{background:var(--red);height:100%}.visual-bars span:nth-child(2){height:52%}.visual-bars span:nth-child(3){background:var(--accent);height:72%}.visual-bars span:nth-child(4){height:42%}.visual-bars span:nth-child(5){background:var(--green);height:88%}.visual-bars span:nth-child(6){height:58%}.visual-bars span:nth-child(7){background:var(--gold);height:76%}.visual-bars span:nth-child(8){height:48%}.visual-bars span:nth-child(9){background:var(--accent-dark);height:68%}.visual-bars span:nth-child(10){height:40%}.visual-bars span:nth-child(11){background:var(--green);height:60%}.primary-controls{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.primary-command{background:var(--green);box-shadow:0 12px 24px #4f9f8338}.primary-command:not(:disabled):hover{background:var(--green-dark)}.tap-command{background:var(--red);box-shadow:0 12px 24px #e255553d}.tap-command:not(:disabled):hover{background:var(--red-dark)}.beat-strip{grid-template-columns:repeat(var(--beats,4), minmax(4px, 1fr));gap:8px;height:10px;margin:-4px 0;display:grid}.beat-dot{background:#edf2f7;border-radius:999px;height:10px}.beat-dot.accent{box-shadow:inset 0 0 0 1px #e2555575}.beat-dot.active{background:var(--accent);box-shadow:none}.beat-dot.active.accent{background:var(--red)}.runtime-meta{color:var(--muted);border-top:1px solid #d9e2ecb8;justify-content:space-between;align-items:center;gap:14px;margin-top:5px;padding-top:18px;font-size:13px;display:flex}.runtime-meta strong{color:var(--accent-dark)}.settings-surface{background:linear-gradient(#fffffffa,#f8fafcfa);align-content:start;gap:18px;min-height:720px;padding:28px;display:grid}.bpm-readout{font-variant-numeric:tabular-nums;border-block:1px solid #d9e2ecd9;justify-content:center;align-items:baseline;gap:10px;padding:23px 0 21px;display:flex}.bpm-number{font-size:82px;font-weight:900;line-height:.95}.bpm-unit{color:var(--muted);font-size:25px;font-weight:900}.tempo-name{color:var(--red-dark);align-self:flex-end;margin-bottom:7px;font-size:13px;font-weight:800}.tempo-controls{grid-template-columns:44px 44px minmax(100px,1fr) 68px 44px 44px;align-items:center;gap:7px;display:grid}.small-button{border:1px solid var(--line);background:var(--surface);min-height:40px;color:var(--text);padding:0;font-size:13px;font-weight:700}.small-button:not(:disabled):hover{background:#f1f8ff;border-color:#1769aa6b}input[type=range]{width:100%;accent-color:var(--accent)}.bpm-input,select{border:1px solid var(--line);background:var(--surface);width:100%;height:40px;color:var(--text);border-radius:6px}.bpm-input{font-variant-numeric:tabular-nums;text-align:center;padding:0 8px}.meter-editor{border:1px solid var(--line);background:var(--surface-soft);border-radius:8px;grid-template-columns:50px 50px 1fr 50px 50px;align-items:center;gap:8px;padding:12px;display:grid}.meter-editor output{color:var(--red-dark);font-variant-numeric:tabular-nums;text-align:center;font-size:25px;font-weight:900}.meter-editor .small-button{width:50px;min-height:50px;color:var(--text);border-radius:50%;font-size:25px;font-weight:900;line-height:1}.setting-grid{grid-template-columns:minmax(0,1fr) 122px;gap:12px;display:grid}.field{color:var(--muted);align-content:start;gap:7px;font-size:13px;display:grid}select{padding:0 10px}.switch-control{align-items:center;gap:9px;width:fit-content;min-height:40px;display:flex;position:relative}.switch-control input{z-index:1;cursor:pointer;opacity:0;width:46px;height:26px;margin:0;position:absolute;top:50%;left:0;transform:translateY(-50%)}.switch-track{border:1px solid var(--line);background:#edf2f7;border-radius:999px;flex:none;align-items:center;width:46px;height:26px;transition:background .15s,border-color .15s;display:inline-flex;position:relative}.switch-track:after{background:var(--surface);content:"";border-radius:50%;width:20px;height:20px;margin-left:2px;transition:transform .15s;box-shadow:0 1px 3px #10182840}.switch-control input:checked+.switch-track{border-color:var(--green);background:var(--green)}.switch-control input:checked+.switch-track:after{transform:translate(20px)}.switch-control input:focus-visible+.switch-track{outline-offset:2px;outline:3px solid #1769aa38}.switch-state{color:var(--text);font-variant-numeric:tabular-nums;font-size:14px}.rhythm-chooser{border:0;min-width:0;margin:0;padding:0}.rhythm-chooser legend{justify-content:space-between;align-items:center;gap:12px;width:100%;margin:0 0 11px;padding:0;display:flex}.rhythm-chooser legend strong{color:var(--text);font-size:14px;font-weight:900}.rhythm-chooser legend span{color:var(--muted);font-size:12px;font-weight:700}.rhythm-options{grid-template-columns:repeat(6,minmax(0,1fr));gap:7px;display:grid}.rhythm-option{border:1px solid var(--line);background:var(--surface);justify-content:center;align-items:center;width:100%;min-width:0;height:48px;min-height:48px;padding:0;display:flex;overflow:hidden}.rhythm-option:not(:disabled):hover{background:#f1f8ff;border-color:#1769aa6b}.rhythm-option.selected{border-color:var(--accent);background:var(--accent);box-shadow:0 8px 18px #1769aa2e}.rhythm-option.selected:not(:disabled):hover{background:var(--accent-dark)}.rhythm-score{justify-content:center;align-items:center;width:100%;height:48px;display:flex;overflow:hidden}.rhythm-score img{object-fit:contain;flex:none;width:112px;max-width:none;height:48px;display:block}.rhythm-option:is([data-rhythm=quintuplet],[data-rhythm=sextuplet],[data-rhythm=septuplet],[data-rhythm=octuplet]) .rhythm-score img{width:112px}.rhythm-option.selected .rhythm-score img{filter:brightness(0)invert()}.footer-strip{color:var(--muted);justify-content:space-between;align-items:center;gap:16px;margin-top:18px;font-size:13px;display:flex}.footer-strip strong{color:var(--accent-dark)}.footer-strip a{color:var(--accent-dark);font-weight:800;text-decoration:none}.footer-strip a:hover{text-decoration:underline}.seo-content{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fffc;width:min(1420px,100% - 28px);margin:0 auto 36px;padding:34px 28px}.seo-intro{max-width:880px}.seo-content h2,.seo-content h3{color:var(--text);letter-spacing:0;margin:0}.seo-content h2{font-size:24px;line-height:1.3}.seo-content h3{font-size:16px;line-height:1.4}.seo-content p{color:var(--muted);margin:9px 0 0;font-size:14px;line-height:1.8}.seo-topic-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:28px;display:grid}.seo-topic-grid article{border-top:3px solid var(--accent);min-width:0;padding-top:15px}.seo-topic-grid article:nth-child(2){border-color:var(--green)}.seo-topic-grid article:nth-child(3){border-color:var(--gold)}.seo-faq{border-top:1px solid var(--line);margin-top:32px;padding-top:26px}.seo-faq h2{margin-bottom:10px;font-size:20px}.seo-faq details{border-bottom:1px solid var(--line)}.seo-faq summary{color:var(--text);cursor:pointer;padding:14px 0;font-size:14px;font-weight:900}.seo-faq details p{max-width:900px;margin:-4px 0 16px}.seo-links{flex-wrap:wrap;gap:10px 20px;margin-top:24px;display:flex}.seo-links a{color:var(--accent-dark);font-size:13px;font-weight:800;text-decoration:none}.seo-links a:hover{text-decoration:underline}.toast{z-index:40;border:1px solid var(--line);background:var(--text);max-width:min(360px,100vw - 36px);color:var(--surface);opacity:0;pointer-events:none;border-radius:8px;padding:10px 14px;transition:opacity .15s,transform .15s;position:fixed;bottom:18px;right:18px;transform:translateY(10px)}.toast.visible{opacity:1;transform:translateY(0)}@media (width<=860px){.app-shell{margin:22px auto}.workspace{grid-template-columns:1fr}.live-badge{display:none}.seo-topic-grid{grid-template-columns:1fr}}@media (width<=560px){.app-shell{width:min(100% - 24px,1420px)}h1{font-size:24px}.brand-mark{width:40px;height:40px}.practice-surface,.settings-surface{min-height:0;padding:16px}.practice-zone{min-height:0;padding:18px 14px}.practice-readout{padding-inline:10px}.measure-readout strong{font-size:36px}.beat-readout strong{font-size:19px}.visual-stage{height:280px}.pendulum{height:108px;top:88px}.pendulum:before{top:24px}.visual-bars{gap:7px;left:18px;right:18px}.meter-editor{grid-template-columns:46px 46px 1fr 46px 46px}.meter-editor .small-button{width:46px;min-height:46px}.primary-controls{grid-template-columns:1fr}.runtime-meta{flex-direction:column;align-items:flex-start}.settings-surface{gap:16px}.bpm-number{font-size:68px}.bpm-unit{font-size:21px}.tempo-controls{grid-template-columns:repeat(4,minmax(0,1fr))}.tempo-controls [data-bpm-delta="-5"]{grid-area:1/1}.tempo-controls [data-bpm-delta="-1"]{grid-area:1/2}.tempo-controls input[type=range]{grid-area:2/1/auto/4}.tempo-controls .bpm-input{grid-area:2/4}.tempo-controls [data-bpm-delta="1"]{grid-area:3/1}.tempo-controls [data-bpm-delta="5"]{grid-area:3/2}.setting-grid{grid-template-columns:1fr}.rhythm-options{grid-template-columns:repeat(4,minmax(0,1fr))}.footer-strip{flex-direction:column;align-items:flex-start}.seo-content{width:100%;padding:28px 18px max(32px, env(safe-area-inset-bottom));margin:0}}@media (width<=340px){.mobile-dial-center>strong{font-size:52px}.mobile-dial-button{width:30px;height:30px;min-height:30px;font-size:18px}.mobile-dial-button.minus{left:18px}.mobile-dial-button.plus{right:18px}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}.mobile-metronome,.mobile-sheet{display:none}@media (width<=560px){html,body{overflow:hidden auto}.app-shell{width:100%;height:100dvh;min-height:0;padding:10px 12px max(10px, env(safe-area-inset-bottom));grid-template-rows:auto minmax(0,1fr);gap:8px;margin:0;display:grid;overflow:hidden}.app-header{min-height:40px;margin:0}.live-badge{padding:6px 9px;font-size:10px;font-weight:800;display:block}.header-note{font-size:11px}.workspace,.footer-strip{display:none}.mobile-metronome{grid-template-rows:auto auto minmax(0,1fr) auto auto;gap:8px;min-height:0;display:grid}.mobile-quick-strip{border:1px solid var(--line);background:#fffffff5;border-radius:8px;grid-template-columns:.8fr 1.2fr 1fr;min-height:46px;display:grid;overflow:hidden;box-shadow:0 8px 18px #1018280f}.mobile-quick-button,.mobile-sound-control select{border:0;border-right:1px solid var(--line);background:var(--surface);min-width:0;min-height:46px;color:var(--text);text-align:center;border-radius:0;font-size:14px;font-weight:850}.mobile-quick-button:first-child{color:var(--accent-dark)}.mobile-quick-button.tap{color:var(--red-dark);border-right:0}.mobile-sound-control{min-width:0;display:block}.mobile-sound-control select{appearance:none;width:100%;padding:0 7px}.mobile-beat-strip{height:8px;margin:0 3px}.mobile-tempo-panel{border:1px solid var(--line);background:#fffffff5;border-radius:8px;grid-template-rows:minmax(0,1fr) auto;place-items:center;gap:2px;min-height:0;padding:6px 0 7px;display:grid;box-shadow:0 10px 26px #1018280f}.mobile-tempo-dial{--dial-size:clamp(220px, min(72vw, 34dvh), 286px);--tick-distance:calc((var(--dial-size) / 2) - 14px);width:var(--dial-size);aspect-ratio:1;border:10px solid var(--accent-dark);background:var(--surface);box-shadow:0 14px 28px #1018281f, inset 0 0 0 1px var(--line);touch-action:none;-webkit-user-select:none;user-select:none;border-radius:50%;position:relative}.mobile-tempo-dial:before{content:"";border:1px solid #1769aa3d;border-radius:50%;position:absolute;inset:15px}.mobile-dial-indicator{background:#edf2f7;border-radius:999px;width:40px;height:7px;position:absolute;top:26px;left:50%;transform:translate(-50%)}.mobile-dial-indicator.active{background:var(--green);box-shadow:0 0 0 5px #4f9f831a}.mobile-dial-indicator.accent{background:var(--red);box-shadow:0 0 0 5px #e255551a}.mobile-dial-tick{width:2px;height:9px;transform:translate(-50%, -50%) rotate(calc(var(--i) * 15deg)) translateY(calc(-1 * var(--tick-distance)));transform-origin:50%;background:#91a8bd;border-radius:999px;position:absolute;top:50%;left:50%}.mobile-dial-tick:nth-child(5n+1){background:var(--accent);width:3px;height:16px}.mobile-dial-center{align-content:center;justify-items:center;display:grid;position:absolute;inset:0}.mobile-dial-label{color:var(--muted);font-size:12px;font-weight:800}.mobile-dial-center>strong{color:var(--text);font-variant-numeric:tabular-nums;margin-top:2px;font-size:60px;font-weight:900;line-height:.98}.mobile-tempo-name{color:var(--red-dark);margin-top:4px;font-size:13px;font-weight:800}.mobile-dial-button{border:1px solid var(--line);background:var(--surface-soft);width:34px;height:34px;min-height:34px;color:var(--accent-dark);border-radius:50%;font-size:20px;font-weight:900;line-height:1;position:absolute;top:50%;transform:translateY(-50%)}.mobile-dial-button.minus{left:28px}.mobile-dial-button.plus{right:28px}.mobile-dial-meta{width:min(72vw,286px);color:var(--muted);justify-content:space-between;align-items:center;font-size:12px;font-weight:750;display:flex}.mobile-dial-meta strong{color:var(--text);font-size:17px}.mobile-actions{border:1px solid var(--line);background:#fffffff5;border-radius:8px;padding:8px;box-shadow:0 8px 18px #1018280f}.mobile-start-button{background:var(--green);color:#fff;width:100%;min-height:46px;font-size:15px;font-weight:850;box-shadow:0 9px 18px #4f9f8333}.mobile-settings-row{border:1px solid var(--line);background:#fffffff5;border-radius:8px;grid-template-columns:1fr 1fr;gap:8px;min-height:56px;padding:8px;display:grid;box-shadow:0 8px 18px #1018280f}.mobile-setting-button{border:1px solid var(--line);background:var(--surface);min-width:0;min-height:40px;color:var(--text);border-radius:8px;justify-content:center;align-items:center;gap:7px;font-size:13px;font-weight:800;display:flex}.mobile-setting-button img{object-fit:contain;width:76px;max-width:none;height:38px;margin-inline:-14px}.mobile-voice-control{cursor:pointer;position:relative}.mobile-voice-control input{z-index:1;opacity:0;width:32px;height:18px;margin:0;position:absolute;top:50%;left:18px;transform:translateY(-50%)}.mobile-switch-track{border:1px solid var(--line);background:#edf2f7;border-radius:999px;width:32px;height:18px;position:relative}.mobile-switch-track:after{background:var(--surface);content:"";border-radius:50%;width:14px;height:14px;transition:transform .15s;position:absolute;top:1px;left:1px;box-shadow:0 1px 2px #10182840}.mobile-voice-control input:checked+.mobile-switch-track{border-color:var(--green);background:var(--green)}.mobile-voice-control input:checked+.mobile-switch-track:after{transform:translate(14px)}.mobile-sheet[hidden]{display:none}.mobile-sheet{z-index:60;display:block;position:fixed;inset:0}.mobile-sheet-backdrop{background:#10182842;position:absolute;inset:0}.mobile-sheet-panel{max-height:88dvh;padding:14px 16px max(18px, env(safe-area-inset-bottom));border-top:1px solid var(--line);background:var(--surface);border-radius:16px 16px 0 0;gap:16px;display:grid;position:absolute;bottom:0;left:0;right:0;overflow:auto;box-shadow:0 -18px 50px #10182833}.mobile-sheet-header{min-height:34px;color:var(--text);text-align:center;grid-template-columns:36px 1fr 36px;align-items:center;display:grid}.mobile-sheet-close{width:34px;min-height:34px;color:var(--text);background:0 0;font-size:28px;font-weight:400}.mobile-sheet-meter{border:1px solid var(--line);background:var(--surface-soft);border-radius:8px;grid-template-columns:42px 42px 1fr 42px 42px;align-items:center;gap:8px;padding:10px;display:grid}.mobile-sheet-meter output{color:var(--red-dark);font-variant-numeric:tabular-nums;text-align:center;font-size:25px;font-weight:900}.mobile-meter-button{border:1px solid var(--line);background:var(--surface);width:42px;min-height:42px;color:var(--text);border-radius:50%;font-size:22px;font-weight:900}.mobile-sheet-section-title{color:var(--text);justify-content:space-between;align-items:center;font-size:14px;display:flex}.mobile-sheet-section-title span{color:var(--muted);font-size:12px}.mobile-rhythm-options{grid-template-columns:repeat(4,minmax(0,1fr));gap:7px;display:grid}.mobile-rhythm-options .rhythm-option{height:58px;min-height:58px}.mobile-rhythm-options .rhythm-score{height:54px}.mobile-rhythm-options .rhythm-score img{width:112px;height:54px}}