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15px}.chord-pills button:hover,.preset-pills button:hover{background:var(--violet)}.builder{text-align:center}.chord-name{letter-spacing:-.055em;place-items:center;min-height:120px;font-size:clamp(2.6rem,6vw,6rem);font-weight:700;animation:.35s cubic-bezier(.22,1,.36,1) nameIn;display:grid}@keyframes nameIn{0%{opacity:0;transform:translateY(10px)scale(.98)}}.preset-pills{flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:45px;display:flex}.preset-pills button:hover{background:var(--coral)}.keyboard-scroll{scroll-snap-type:x mandatory;padding:12px 5px 25px;overflow-x:auto}.two-octave{min-width:900px;height:230px;display:flex;position:relative}.two-octave button{cursor:pointer;scroll-snap-align:start;border:0;transition:all .15s;position:relative}.two-octave .white{color:#211c2d;background:linear-gradient(#f8f5ff,#c8c1de);border-radius:7px 7px 18px 18px;width:62px;height:220px;margin-right:4px}.two-octave .black{width:41px;height:135px;color:var(--ink);z-index:2;background:linear-gradient(#282338,#0d0c13);border-radius:5px 5px 12px 12px;margin:0 -23px}.two-octave button.active{background:var(--coral);transform:translateY(7px);box-shadow:0 0 24px #ff7a6b66}.two-octave button span{font:600 .65rem var(--font-geist-mono);position:absolute;bottom:12px;left:0;right:0}.builder-actions{justify-content:center;gap:10px;display:flex}.ear{text-align:center}.difficulty{margin-bottom:40px}.ear-orb{background:radial-gradient(circle,#4fd8c72e,#4fd8c70a);border:1px solid #4fd8c740;border-radius:45% 55% 61% 39%/50% 40% 60% 50%;flex-direction:column;justify-content:center;align-items:center;gap:25px;width:310px;height:280px;margin:auto;display:flex}.ear-orb span{color:var(--ink-muted)}.ear-orb.bloom{animation:.8s bloom}@keyframes bloom{50%{transform:scale(1.1);box-shadow:0 0 80px #4fd8c766}}.answer-cloud{flex-wrap:wrap;justify-content:center;gap:10px;max-width:760px;margin:42px auto;display:flex}.answer-cloud button{min-width:55px}.answer-cloud button:hover{background:#4fd8c733}.answer-cloud button.correct{background:var(--aqua);color:#0a1515;box-shadow:0 0 24px #4fd8c759}.answer-cloud button.wrong{background:#ff7a6b40;animation:.35s wobble}@keyframes wobble{25%{transform:rotate(-7deg)}75%{transform:rotate(7deg)}}.streak{background:#ffffff14;border-radius:50%;max-width:600px;height:4px;margin:auto}.streak span{background:linear-gradient(90deg,var(--aqua),var(--violet));border-radius:50%;height:100%;transition:all .4s;display:block}.streak p{color:var(--ink-muted);margin-top:12px;font-size:.8rem}.footer{background:var(--bg-elevated);padding:130px 24px 55px;position:relative}.footer .divider-wave{color:var(--bg-deep)}.footer-inner{grid-template-columns:1fr auto;align-items:end;gap:45px;width:min(1180px,100%);margin:auto;display:grid}.footer-brand{font-size:1.3rem}.footer-inner p{color:var(--ink-muted);margin:12px 0 0}.footer-links{color:var(--ink-muted);gap:28px;display:flex}.footer small{color:#716d89}.footer-inner small{border-top:1px solid #ffffff12;grid-column:1/-1;padding-top:25px}.reveal{opacity:0;filter:blur(7px);transition:all .7s cubic-bezier(.22,1,.36,1);transform:translateY(24px)}.reveal.visible{opacity:1;filter:none;transform:none}@media (width<=900px){.path-blobs{flex-direction:column;align-items:center;gap:18px;min-height:0;display:flex}.path-blob{width:min(520px,100%);min-height:300px;position:relative!important;inset:auto!important}.path-blob.rhythm{transform:translate(5%)}.path-blob.harmony{transform:translate(-5%)}.teaser-circle{opacity:.35;right:-260px}.chapter-inner,.circle-layout{grid-template-columns:1fr;gap:60px}.chapter:nth-child(2n) .chapter-copy{order:0}.chapter{padding-left:10vw}.demo{width:min(620px,100%);margin:auto}.circle-explorer{width:min(540px,80vw);margin:auto}.circle-explorer>button{transform:rotate(var(--angle)) translateY(calc(-1*min(245px,39vw))) rotate(calc(-1*var(--angle))) rotate(calc(-1*var(--rotation)))}.key-info{text-align:center}.chord-pills{justify-content:center}.tool-panel{padding:45px 25px}.progress-string{left:12px}.footer-inner{grid-template-columns:1fr}}@media (width<=680px){.site-header{top:auto;bottom:14px}.nav-pill{gap:0;padding:7px 9px}.brand{display:none}.nav-links{gap:7px}.nav-links a{flex-direction:column;gap:1px;min-width:80px;padding:7px 11px}.nav-icon{display:block}.nav-label{font-size:.68rem}.hero{padding:105px 18px 210px}.hero h1,.page-hero h1{font-size:clamp(3.2rem,16vw,5.2rem)}.lede{font-size:1rem}.hero-piano{bottom:68px}.mini-piano{gap:3px;padding:10px}.mini-piano button{width:38px;height:78px}.mini-piano button:nth-child(2n){height:72px}.scroll-note{display:none}.section{padding-left:20px;padding-right:20px}.section h2,.teaser h2,.chapter h2,.tool-section h2,.closing h2{font-size:2.8rem}.paths{padding-top:150px}.path-blob{padding:44px 36px}.melody-path{grid-template-columns:1fr;gap:25px;margin-top:70px}.melody-path:before{display:none}.melody-path div:nth-child(2){margin-top:0}.melody-path span{margin-bottom:20px;position:static}.teaser{min-height:680px;padding:110px 22px}.teaser-circle{width:420px;height:420px;right:-270px}.teaser-circle span{transform:rotate(var(--angle)) translateY(-198px) rotate(calc(-1*var(--angle)))}.page-hero{min-height:82svh;padding-top:110px}.progress-string{display:none}.chapter{min-height:auto;padding:125px 18px 100px}.chapter-inner{gap:45px}.chapter-number{font-size:4rem}.demo{border-radius:12% 10% 13% 9%/9% 13% 8% 12%;min-height:350px;padding:38px 20px}.scale-orbs{margin:40px 0}.scale-orbs i{width:38px;height:38px}.pattern{gap:16px}.chord-orb-demo,.metro-demo{flex-direction:column}.mini-circle>div{width:250px;height:250px}.mini-circle span{transform:rotate(var(--angle)) translateY(-118px) rotate(calc(-1*var(--angle)))}.closing>div{padding:70px 20px}.tool-tabs{bottom:22px}.tool-section{padding:110px 18px}.tool-heading{gap:15px}.tool-heading>span{font-size:2rem}.tool-panel{border-radius:34px;padding:45px 15px}.circle-explorer{width:78vw}.circle-explorer>button{width:46px;height:46px;transform:rotate(var(--angle)) translateY(calc(-1*36vw)) rotate(calc(-1*var(--angle))) rotate(calc(-1*var(--rotation)));margin:-23px;font-size:.75rem}.circle-core strong{font-size:2rem}.chord-name{min-height:90px;font-size:2.7rem}.ear-orb{width:260px;height:240px}.footer{padding-bottom:130px}.footer-links{flex-wrap:wrap;gap:18px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}.reveal{filter:none;transform:none}}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}