:root{color-scheme:dark;--page:#111923;--panel:#1b2633;--panel-light:#243240;--line:#364555;--text:#f4f7f9;--muted:#aab7c6;--accent:#d5fa75;--accent-dark:#243419;--red:#ff8381;--font:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans KR","Malgun Gothic",sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--page);color:var(--text);font:1rem/1.6 var(--font)}button,input{font:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible{outline:3px solid var(--accent);outline-offset:4px}button{touch-action:manipulation;-webkit-tap-highlight-color:transparent}button:disabled{opacity:.35;cursor:default}.studio{max-width:1160px;padding:38px 40px 24px;margin:auto}.header{display:flex;align-items:center;justify-content:space-between;margin-bottom:38px}.brand{display:flex;align-items:center;gap:16px}.brand-mark{display:flex;gap:5px;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--line);border-radius:12px}.brand-mark i{display:block;width:4px;height:15px;border-radius:4px;background:var(--accent)}.brand-mark i:nth-child(2){height:27px}.eyebrow{font-size:.75rem;letter-spacing:.13em;font-weight:650;color:var(--accent)}h1{font-size:1.65rem;letter-spacing:-.045em;line-height:1.4;margin:0}h2{font-size:1rem;margin:0;font-weight:650;letter-spacing:-.02em}.header-caption{font-size:.875rem;color:var(--muted)}.section-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.section-heading>span{color:var(--muted);font-size:.875rem}.patterns{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.pattern{position:relative;text-align:left;display:flex;flex-direction:column;gap:3px;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px;color:var(--text);transition:background .15s,border-color .15s}.pattern:hover{background:var(--panel-light)}.pattern.selected{border-color:var(--accent);background:var(--accent-dark)}.pattern-number{font-size:.75rem;color:var(--muted);margin-bottom:5px;font-variant-numeric:tabular-nums}.pattern.selected .pattern-number{color:var(--accent)}.pattern strong{font-size:1.0625rem}.pattern-degrees{font-size:.8125rem;color:#d2dde4;white-space:normal;min-height:26px}.pattern-purpose{color:var(--muted);font-size:.8125rem;margin-top:8px}.console{margin-top:24px;padding:26px;background:var(--panel);border:1px solid var(--line);border-radius:20px;box-shadow:0 16px 40px #050b132b}.console-top{display:grid;grid-template-columns:1fr 1.15fr 1fr;gap:28px;align-items:center}.display-label{font-size:.875rem;color:var(--muted)}.note-display>div{display:flex;gap:14px;align-items:baseline;margin:3px 0}.note-display strong{font-size:3.75rem;font-weight:600;letter-spacing:-.06em;line-height:1.1;font-variant-numeric:tabular-nums;color:var(--accent)}#current-solfege{color:#d4dde6;font-size:1.1rem}.status{display:block;color:var(--muted);font-size:.875rem;margin-top:10px}.status.playing{color:var(--accent)}.session-display>div:not(.step-line){display:flex;justify-content:space-between;gap:10px;font-size:.875rem;margin:8px 0}.session-display span{color:var(--muted)}.session-display strong{font-weight:500}.step-line{display:flex;gap:5px;align-items:center;margin-top:22px;min-height:8px}.step-line span{display:block;height:5px;flex:1;background:#3e4c5d;border-radius:5px}.step-line span.active{background:var(--accent)}.transport{display:grid;gap:10px}.repeat{display:flex;align-items:center;justify-content:center;gap:8px;background:transparent;border:1px solid #506172;color:var(--text);border-radius:10px;padding:10px}.repeat svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.repeat:hover{background:var(--panel-light)}.stop{display:flex;align-items:center;justify-content:center;gap:10px;position:relative;background:var(--red);color:#391413;border:0;border-radius:10px;min-height:57px;font-weight:750;font-size:1.15rem}.stop:hover{background:#ffa09e}.stop-square{background:currentColor;width:13px;height:13px;border-radius:2px}.shortcut{position:absolute;right:12px;font-size:.75rem;font-weight:500;opacity:.65}.controls{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin:27px 0 29px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:22px 0}.slider-control>span:first-child{display:flex;justify-content:space-between;align-items:center;font-size:.9375rem}.slider-control strong{font-weight:550;font-size:1.125rem}.slider-control small{font-size:.75rem;color:var(--muted);font-weight:400}.slider-control input{width:100%;margin:12px 0 4px;height:24px;accent-color:var(--accent);cursor:pointer;touch-action:pan-y}.range-hints{display:flex;justify-content:space-between;color:var(--muted);font-size:.75rem}.keyboard-heading{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:18px}.keyboard-heading p{font-size:.875rem;color:var(--muted);margin:3px 0 0}.octave-control{display:flex;align-items:center;gap:13px;white-space:nowrap}.octave-control button{border:1px solid #4b5a6c;border-radius:9px;background:var(--panel-light);color:var(--text);width:38px;height:38px;line-height:1;font-size:1.4rem}.octave-control span{font-size:.875rem;font-variant-numeric:tabular-nums}.keyboard{position:relative;display:flex;height:180px;width:100%;user-select:none;-webkit-user-select:none;isolation:isolate}.key{border:0;padding:0;position:relative;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;line-height:1.35;transition:background .06s;min-width:0}.key.white{flex:1;height:100%;background:#eef2f5;color:#223040;border:1px solid #c0c9d1;border-radius:0 0 7px 7px;box-shadow:inset 0 -5px 0 #d7dde3;z-index:1;padding-bottom:16px}.key.white:first-child{border-top-left-radius:8px}.key.white:last-child{border-top-right-radius:8px}.key.black{position:absolute;top:0;width:7.6%;height:62%;background:linear-gradient(#14202a,#2a3543);color:#ebf0f5;border:1px solid #090f16;border-radius:0 0 5px 5px;box-shadow:inset 0 -5px 0 #101923,0 4px 6px #0003;z-index:2;transform:translateX(-50%);padding-bottom:13px}.key>strong{font-size:.9375rem;font-weight:650}.key>span{font-size:.75rem;margin-top:2px;opacity:.75}.key.white.root{background:#e6f3ca;box-shadow:inset 0 -5px 0 #aec785}.key.black.root{background:#425b28;box-shadow:inset 0 -5px 0 #263d15}.key.white.sounding,.key.white:active{background:var(--accent);box-shadow:inset 0 -5px 0 #afd447}.key.black.sounding,.key.black:active{background:#a4d150;color:#15200f;box-shadow:inset 0 -5px 0 #718d36}.key:focus-visible{z-index:3;outline-offset:-4px;outline:3px solid #587ce1}.keyboard-footer{display:flex;justify-content:space-between;font-size:.8125rem;color:var(--muted);gap:10px;margin-top:13px}.keyboard-footer>span:first-child{display:flex;align-items:center;gap:7px}.legend-root{height:9px;width:9px;background:#e6f3ca;border-radius:2px}.audio-error{color:#ffc1bc;background:#522e2c;border-radius:8px;padding:12px;margin-bottom:0;font-size:.875rem}.practice{display:grid;grid-template-columns:1fr 1fr;gap:42px;margin-top:32px;padding:0 6px}.practice-intro h2{font-size:1.15rem;margin:6px 0 8px}.practice-intro p{font-size:.875rem;color:var(--muted);margin:0;max-width:390px}.practice-notes p{display:flex;align-items:baseline;gap:14px;font-size:.875rem;margin:0 0 10px}.practice-notes b{font-size:.75rem;color:#73879b;font-weight:500;font-variant-numeric:tabular-nums}.footer{border-top:1px solid #273342;margin-top:28px;padding-top:16px;display:flex;justify-content:space-between;gap:20px;font-size:.75rem;color:#899bae}button,input{scroll-margin:20px}@media(prefers-reduced-motion:reduce){*{transition:none!important}}@media(max-width:760px){.studio{padding:24px 20px}.header{margin-bottom:28px}.header-caption{display:none}.section-heading{display:block}.section-heading>span{display:block;margin-top:4px}.patterns{grid-template-columns:repeat(2,1fr);gap:10px}.pattern{padding:14px;gap:2px}.pattern-purpose{margin-top:4px}.pattern-number{margin-bottom:2px}.console{padding:20px;margin-top:20px}.console-top{grid-template-columns:1fr 1fr;gap:20px}.session-display{display:none}.note-display strong{font-size:3rem}.note-display>div{gap:9px}.transport{gap:8px}.controls{gap:24px;margin:22px 0;padding:17px 0}.keyboard-heading{display:block}.octave-control{justify-content:flex-end;margin-top:13px}.keyboard{height:164px}.key.white{padding-bottom:12px}.key>strong{font-size:.8125rem}.key.black>strong{font-size:.75rem}.key.black>span{display:none}.key.black{width:8.5%;padding-bottom:12px}.keyboard-footer{flex-wrap:wrap;gap:6px}.practice{grid-template-columns:1fr;gap:18px;margin-top:26px;padding:0 2px}.practice-notes p{margin-bottom:8px}.footer{flex-direction:column;gap:4px;margin-top:22px}.shortcut{display:none}}@media(max-width:380px){.studio{padding:20px 14px}.console{padding:15px}.pattern{padding:12px}.pattern strong{font-size:1rem}.pattern-degrees{font-size:.75rem}.controls{gap:16px}.note-display strong{font-size:2.7rem}.transport{font-size:.875rem}.stop{font-size:1rem}.keyboard-heading p{font-size:.8125rem}.key>span{font-size:.6875rem}}@media(min-width:761px) and (max-width:950px){.studio{padding:30px 24px}.pattern{padding:14px}.console-top{gap:20px;grid-template-columns:1fr 1fr 1fr}.shortcut{display:none}}
:root{}@media(max-width:760px){.header{margin-bottom:20px}.pattern-number,.pattern-purpose{display:none}.pattern{padding:12px}.pattern-degrees{min-height:0}.console{display:flex;flex-direction:column}.console-top{order:0}.keyboard-heading{order:1;margin-top:20px}.keyboard{order:2;flex-shrink:0}.keyboard-footer{order:3}.controls{order:4;margin:20px 0 0;border-bottom:0;padding-bottom:0}.audio-error{order:5}}
.patterns{grid-template-columns:repeat(6,minmax(0,1fr))}.footer{flex-wrap:wrap}.sound-credit{flex-basis:100%}.sound-credit a{color:inherit;text-underline-offset:3px}@media(max-width:760px){.patterns{grid-template-columns:repeat(2,minmax(0,1fr))}.pattern[data-pattern="repeated"] .pattern-degrees{font-size:.8125rem}.console-top{gap:12px}.studio{padding-top:18px}.header{margin-bottom:14px}.pattern{padding:10px}.keyboard-heading{margin-top:14px}.keyboard{height:148px}.octave-control{margin-top:8px}.console{padding:16px}.keyboard-heading{margin-bottom:14px}.sound-credit{line-height:1.7}}
.mode-picker{display:flex;align-items:center;gap:12px;font-size:.875rem;color:var(--muted)}.mode-picker select{color:var(--text);background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:10px 12px;min-height:44px;font:inherit;font-size:1rem;cursor:pointer}.mode-picker select:focus-visible{outline:3px solid var(--accent);outline-offset:3px}.slider-control.inactive{opacity:.45}.slider-control input:disabled{cursor:default}@media(max-width:760px){.header{gap:12px}.brand-mark{display:none}.mode-picker{gap:4px;flex-direction:column;align-items:flex-start}.mode-picker select{font-size:.875rem;padding:8px 10px;min-height:38px}.mode-picker>span{font-size:.8125rem}.brand{gap:0}}

/* Keep all content above the keys a stable size as playback state changes. */
.note-display,.session-display{min-width:0}.note-display>div{white-space:nowrap}.note-display strong,#current-solfege{white-space:nowrap}.status{min-block-size:1.6em;white-space:nowrap}.session-display strong{white-space:nowrap}.sample-progress{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:38px;margin-top:10px;color:var(--muted);font-size:.8125rem}.sample-progress>span{white-space:nowrap}.sample-progress button{border:1px solid var(--line);border-radius:8px;background:var(--panel-light);color:var(--text);padding:4px 10px;font-size:.8125rem;white-space:nowrap}.sample-progress button[hidden]{display:none}@media(max-width:760px){.sample-progress{order:3}.audio-error{order:5}.console-top{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}@media(max-width:380px){.note-display strong{font-size:2.3rem}#current-solfege{font-size:.875rem}}

/* The continuous controls sit after the keyboard, so mode changes cannot move it. */
.continuous-panel{margin-top:24px;padding:24px 26px;background:var(--panel);border:1px solid var(--line);border-radius:20px}.continuous-panel[hidden]{display:none}.continuous-keys{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line)}.continuous-keys>div{display:flex;flex-direction:column;min-width:0}.continuous-keys span{color:var(--muted);font-size:.875rem}.continuous-keys strong{font-size:1.125rem;font-weight:600;white-space:nowrap}.continuous-settings{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:18px}.continuous-settings label{font-size:.875rem;color:var(--muted);min-width:0}.continuous-settings select,.continuous-settings input{display:block;width:100%;min-height:44px;margin-top:6px;padding:8px 10px;font:inherit;font-size:1rem;color:var(--text);background:var(--page);border:1px solid var(--line);border-radius:8px}.continuous-settings select:focus-visible{outline:3px solid var(--accent);outline-offset:3px}.field-unit{float:right}.range-summary{font-size:.9375rem;margin:18px 0 8px}.range-summary strong{color:var(--accent);white-space:nowrap}.continuous-help{color:var(--muted);font-size:.875rem;margin:8px 0}.continuous-play{width:100%;min-height:52px;margin-top:14px;background:var(--accent);color:#192510;border:0;border-radius:10px;font:inherit;font-weight:700}@media(max-width:760px){.continuous-panel{padding:18px 16px;margin-top:20px}.continuous-settings{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 12px}.continuous-keys{gap:8px}.continuous-keys strong{font-size:1rem}.continuous-panel .section-heading>span{font-size:.875rem}.mode-picker select{max-width:148px}}@media(max-width:380px){.continuous-keys{grid-template-columns:1fr 1fr}.continuous-keys>div:last-child{grid-column:1 / -1;flex-direction:row;justify-content:space-between}.continuous-panel{padding:16px 14px}.continuous-settings{grid-template-columns:1fr}.mode-picker select{max-width:130px}}

.continuous-actions{display:grid;grid-template-columns:2fr 1fr;gap:12px;margin-top:14px}.continuous-actions .continuous-play{margin-top:0;min-height:57px}