:root{
  --bg:#030807;
  --text:#f5f7f6;
  --muted:#a0a8a5;
  --soft:#6f7875;
  --cyan:#00f5d4;
  --green:#10f0d0;
  --orange:#ffb21a;
  --panel:rgba(7,12,12,.78);
  --line:rgba(255,255,255,.13);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;min-height:100%;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
body{
  background:
    radial-gradient(circle at 50% 24%,rgba(0,255,210,.12),transparent 25%),
    radial-gradient(circle at 50% 78%,rgba(0,255,210,.06),transparent 32%),
    linear-gradient(180deg,#020504,#030807 58%,#020403);
  color:var(--text);
  animation:studioxFadeIn .26s ease both;
}
@keyframes studioxFadeIn{from{opacity:.35;transform:translateY(6px)}to{opacity:1;transform:none}}
.studioxBack{
  position:fixed;z-index:50;left:22px;top:calc(env(safe-area-inset-top,0px) + 18px);
  padding:12px 17px;border-radius:16px;background:rgba(3,8,7,.72);border:1px solid var(--line);
  color:#fff;text-decoration:none;font-weight:850;font-size:15px;line-height:1;
  box-shadow:0 12px 34px rgba(0,0,0,.38);backdrop-filter:blur(14px)
}
.studioxBack:hover{border-color:rgba(0,245,212,.45);background:rgba(0,245,212,.08);color:var(--cyan)}
.app{
  min-height:100vh;width:min(100%,1080px);margin:0 auto;
  padding:calc(env(safe-area-inset-top,0px) + 28px) 26px 46px;
  display:flex;flex-direction:column;align-items:center;
}
.studioxHeader{text-align:center;margin:10px auto 28px;max-width:100%}
.studioxLogo{display:inline-flex;align-items:center;justify-content:center;gap:14px;max-width:100%;filter:drop-shadow(0 0 18px rgba(0,245,212,.12))}
.xmark{position:relative;width:46px;height:46px;flex:0 0 auto;filter:drop-shadow(0 0 18px rgba(0,245,212,.42))}
.xmark:before,.xmark:after{content:"";position:absolute;left:19px;top:2px;width:6px;height:42px;border:2px solid var(--cyan);border-radius:999px;background:rgba(0,245,212,.05)}
.xmark:before{transform:rotate(45deg)}.xmark:after{transform:rotate(-45deg)}
.xmark.small{width:42px;height:42px}.xmark.small:before,.xmark.small:after{height:38px;left:17px}
.wordmark{font-size:36px;line-height:1;font-weight:950;letter-spacing:-1.7px;color:#fff;white-space:nowrap}.wordmark span{color:var(--cyan)}
.studioxModuleName{margin-top:14px;color:rgba(255,255,255,.84);font-size:16px;font-weight:850;letter-spacing:.23em;text-transform:uppercase}
.circleHero{display:flex;align-items:center;justify-content:center;gap:20px;margin:0 0 14px;text-align:center}
h1{margin:0;font-size:44px;line-height:1;letter-spacing:-.045em;font-weight:850}
.wheelWrap{position:relative;width:min(100%,800px);aspect-ratio:1/1;margin-top:6px}
.pointer{position:absolute;left:50%;top:-4px;transform:translateX(-50%);width:0;height:0;border-left:19px solid transparent;border-right:19px solid transparent;border-top:30px solid var(--orange);filter:drop-shadow(0 0 13px rgba(255,173,22,.55));z-index:2}
#circleSvg{width:100%;height:100%;display:block;overflow:visible}
.majorText{font-size:42px;font-weight:770;fill:var(--text);filter:url(#textShadow)}
.minorText{font-size:28px;font-weight:690;fill:var(--text);filter:url(#textShadow)}
.dimText{font-size:18px;font-weight:600;fill:#dfe8e5;opacity:.82}
.centerKey{font-size:58px;font-weight:860;fill:var(--text)}
.centerMode{font-size:32px;font-weight:800;fill:var(--cyan)}
.centerMinor{font-size:24px;font-weight:540;fill:#c2c9c7}
.bottomPanel{width:min(100%,790px);margin-top:-20px;border:1px solid var(--line);border-radius:28px;padding:18px;background:linear-gradient(180deg,rgba(11,14,15,.82),rgba(5,8,9,.74));box-shadow:0 20px 80px rgba(0,0,0,.42);backdrop-filter:blur(16px)}
.romanTabs{display:grid;grid-template-columns:repeat(7,1fr);gap:18px;margin-bottom:18px}.romanTabs button{min-height:60px;border:1px solid rgba(255,255,255,.12);border-radius:16px;background:rgba(255,255,255,.035);color:#f7fbfa;font-size:28px;font-weight:790}.romanTabs button.active{border-color:var(--cyan);background:rgba(16,240,208,.20);box-shadow:inset 0 0 0 1px rgba(16,240,208,.45),0 0 22px rgba(16,240,208,.25)}
.scaleCard{border:1px solid rgba(255,255,255,.10);border-radius:22px;padding:24px 24px 22px;background:rgba(0,0,0,.18)}
.scaleHeader{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px}.scaleHeader h2{margin:0;font-size:32px;letter-spacing:-.03em}.scaleHeader span{color:var(--cyan);border:1px solid rgba(16,240,208,.25);background:rgba(16,240,208,.08);border-radius:12px;padding:8px 14px;font-size:22px;font-weight:800}.noteRow{display:grid;grid-template-columns:repeat(8,1fr);gap:14px;margin-bottom:22px}.noteRow button{height:auto;min-height:62px;border-radius:999px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.025);color:#f6faf9;font-size:22px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px}.noteRow button small{display:block;color:rgba(255,255,255,.6);font-size:15px;font-weight:550}.noteRow button.active{border-color:var(--cyan);background:rgba(16,240,208,.15);box-shadow:0 0 22px rgba(16,240,208,.25)}.subTitle{color:#fff;font-weight:800;font-size:18px;margin-bottom:16px}.detailBlock{border-top:1px solid rgba(255,255,255,.1);padding-top:18px}.triadRow{display:grid;grid-template-columns:repeat(7,1fr);gap:14px;text-align:center}.triadRow b{display:block;font-size:18px;color:#f4f8f7;margin-bottom:8px}.triadRow span{display:block;font-size:20px;color:#aeb6b3}.triadRow div:first-child b,.triadRow div:first-child span{color:var(--cyan)}
@media(max-width:860px){
  .app{padding:calc(env(safe-area-inset-top,0px) + 82px) 12px 34px}.studioxBack{left:20px;top:calc(env(safe-area-inset-top,0px) + 18px);font-size:14px;padding:11px 14px;border-radius:15px}.studioxHeader{margin:0 auto 28px}.studioxLogo{gap:10px}.xmark{width:40px;height:40px}.xmark:before,.xmark:after{height:36px;left:16px}.wordmark{font-size:30px;letter-spacing:-1.3px}.studioxModuleName{font-size:14px;letter-spacing:.22em}.circleHero{gap:14px;margin-bottom:10px}.circleHero .heroIcon{display:none}h1{font-size:38px}.wheelWrap{width:min(100%,720px)}.bottomPanel{margin-top:-8px;padding:14px}.romanTabs{gap:10px}.romanTabs button{min-height:54px;font-size:22px}.scaleHeader h2{font-size:28px}.noteRow{gap:9px}.noteRow button{min-height:54px;font-size:20px}.noteRow button small{font-size:13px}.triadRow{gap:6px}.triadRow b{font-size:16px}.triadRow span{font-size:17px}
}
@media(max-width:520px){
  .app{padding-left:10px;padding-right:10px}.studioxBack{max-width:calc(50vw - 18px);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.studioxHeader{width:100%;padding-left:142px;text-align:left;margin-bottom:24px}.studioxLogo{justify-content:flex-start}.xmark{display:none}.wordmark{font-size:25px;letter-spacing:-1.1px}.studioxModuleName{font-size:12px;letter-spacing:.28em;text-align:left;margin-top:11px}.circleHero{display:block;margin-top:2px}h1{font-size:34px;text-align:center}.wheelWrap{width:100%;margin-top:2px}.pointer{top:-5px;border-left-width:15px;border-right-width:15px;border-top-width:24px}.majorText{font-size:38px}.minorText{font-size:25px}.dimText{font-size:17px}.centerKey{font-size:52px}.centerMode{font-size:28px}.centerMinor{font-size:21px}.bottomPanel{width:100%;border-radius:24px;margin-top:-2px}.romanTabs{gap:8px}.romanTabs button{min-height:54px;border-radius:14px;font-size:21px}.scaleCard{padding:20px 16px;border-radius:20px}.scaleHeader h2{font-size:28px}.noteRow{grid-template-columns:repeat(8,minmax(0,1fr));gap:7px}.noteRow button{min-height:56px;font-size:20px}.noteRow button small{font-size:12px}.triadRow{grid-template-columns:repeat(7,minmax(0,1fr));gap:5px}.triadRow b{font-size:14px}.triadRow span{font-size:15px}
}
@media(max-width:390px){
  .wordmark{font-size:22px}.studioxHeader{padding-left:132px}h1{font-size:31px}.majorText{font-size:35px}.minorText{font-size:23px}.dimText{font-size:16px}.romanTabs button{font-size:19px;min-height:50px}.noteRow button{font-size:18px;min-height:52px}.noteRow button small{font-size:11px}.scaleHeader h2{font-size:25px}
}
.keySector{cursor:pointer;transition:opacity .18s ease, filter .18s ease}.keySector:hover{opacity:.92;filter:url(#glow)}
.selectedDegreeBox{display:flex;align-items:center;gap:14px;border:1px solid rgba(16,240,208,.16);background:rgba(16,240,208,.055);border-radius:18px;padding:14px 16px;margin:0 0 18px}.degreeBig{width:48px;height:48px;display:grid;place-items:center;border-radius:14px;border:1px solid rgba(16,240,208,.36);background:rgba(16,240,208,.12);color:var(--cyan);font-size:24px;font-weight:900}.selectedDegreeBox b{display:block;font-size:22px;color:#fff;margin-bottom:4px}.selectedDegreeBox span{display:block;color:rgba(255,255,255,.66);font-size:15px}.infoLine{margin:6px 0;font-size:17px;color:#fff}.infoLine.muted{color:rgba(255,255,255,.62)}.triadRow div.active b,.triadRow div.active span{color:var(--cyan)}.noteRow button{cursor:pointer}.romanTabs button{cursor:pointer}
@media(max-width:520px){.selectedDegreeBox{padding:12px;gap:12px}.degreeBig{width:44px;height:44px;font-size:22px}.selectedDegreeBox b{font-size:20px}.selectedDegreeBox span{font-size:14px}.infoLine{font-size:15px}}

/* v1.0.7 — Circle in-key visual patch: show Roman numerals only for the 7 chords in the selected key */
.romanOnWheel{
  font-size:24px;
  font-weight:900;
  fill:#ffbf1f;
  letter-spacing:.02em;
  filter:url(#textShadow);
  pointer-events:none;
}
.innerRoman{font-size:22px;fill:#ffd23a}
.dimRoman{font-size:17px;fill:#ffd23a;opacity:.95}
.inKeyChordText{
  fill:#fff7cf;
  filter:url(#textShadow) drop-shadow(0 0 8px rgba(255,191,31,.42));
}
@media(max-width:520px){
  .romanOnWheel{font-size:22px}
  .innerRoman{font-size:20px}
  .dimRoman{font-size:16px}
}
@media(max-width:390px){
  .romanOnWheel{font-size:20px}
  .innerRoman{font-size:18px}
  .dimRoman{font-size:15px}
}