.uc-root{
  max-width:1120px;
  margin:36px auto;
  padding:28px;
  border-radius:22px;
  background:#fffdfa;
  box-shadow:0 18px 50px rgba(31,45,40,.09);
  color:#15382f;
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
.uc-tool-page{
  min-height:100vh;
  margin:0;
  background:#f3efe6;
  color:#15382f;
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
.uc-shell{max-width:1180px;margin:0 auto;padding:28px 18px 60px}
.uc-topbar{position:sticky;top:0;z-index:5;background:rgba(255,253,250,.94);backdrop-filter:blur(10px);border-bottom:1px solid #eadfcd}
.uc-back{display:inline-flex;align-items:center;gap:8px;padding:14px 18px;color:#123d33;text-decoration:none;font-weight:900}
.uc-eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0 0 8px;color:#a86700;font-size:12px;font-weight:900;letter-spacing:.12em;text-transform:uppercase}
.uc-root h2,.uc-root h1{margin:0;color:#15382f;font-family:Georgia,serif;font-size:clamp(28px,4vw,44px);line-height:1.05}
.uc-lead{max-width:820px;margin:12px 0 22px;color:#65766f;font-size:16px;line-height:1.65}
.uc-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.uc-card{border:1px solid #eadfcd;border-radius:18px;background:#fff;box-shadow:0 10px 28px rgba(31,45,40,.06);padding:18px;overflow:hidden}
.uc-card.wide{grid-column:1/-1}
.uc-card h3{margin:0 0 8px;color:#15382f;font-family:Georgia,serif;font-size:24px}
.uc-card p{margin:0 0 12px;color:#65766f;line-height:1.55}
.uc-actions{display:flex;flex-wrap:wrap;gap:9px;margin:12px 0}
.uc-btn{border:0;border-radius:12px;background:#f2a92f;color:#172d26;font-weight:900;padding:10px 13px;cursor:pointer;box-shadow:0 3px 0 rgba(124,77,3,.18)}
.uc-btn.alt{background:#123d33;color:white}
.uc-btn.ghost{background:#f2eee6;color:#15382f;box-shadow:none}
.uc-btn:active{transform:translateY(1px);box-shadow:none}
.uc-output{min-height:42px;border-left:4px solid #55b88f;border-radius:12px;background:#eef8f4;padding:12px 14px;color:#1f4339;font-weight:700;line-height:1.45}
.uc-table{width:100%;border-collapse:separate;border-spacing:0;margin-top:10px;overflow:hidden;border:1px solid #eadfcd;border-radius:14px}
.uc-table th,.uc-table td{padding:10px;border-bottom:1px solid #eadfcd;text-align:left;vertical-align:top}
.uc-table th{background:#f7f0e4;color:#15382f;font-size:12px;text-transform:uppercase;letter-spacing:.08em}
.uc-table tr:last-child td{border-bottom:0}
.uc-piano{display:flex;align-items:flex-start;height:132px;padding:12px;border-radius:16px;background:#2c241e;overflow:auto}
.uc-key{position:relative;border:1px solid #a99d8a;background:#fbfaf6;width:44px;height:108px;border-radius:0 0 8px 8px;margin-right:2px;flex:0 0 auto;cursor:pointer;font-weight:900;color:#2c241e}
.uc-key.black{height:70px;width:30px;background:#191410;color:white;margin-left:-17px;margin-right:-15px;z-index:2;border-color:#111;border-radius:0 0 6px 6px}
.uc-key.on{background:#f2a92f;color:#123d33}
.uc-key.black.on{background:#55b88f;color:#08231c}
.uc-key span{position:absolute;left:0;right:0;bottom:8px;text-align:center;font-size:11px}
.uc-solfege{display:grid;grid-template-columns:repeat(7,1fr);gap:7px}
.uc-solfege .uc-btn{padding:11px 4px}
.uc-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.uc-field label{display:block;font-size:12px;font-weight:900;color:#a86700;text-transform:uppercase;letter-spacing:.08em;margin-bottom:5px}
.uc-field textarea,.uc-field input,.uc-field select{
  width:100%;
  box-sizing:border-box;
  border:1px solid #d9cbb6;
  border-radius:12px;
  padding:10px 12px;
  font:inherit;
  color:#15382f;
  background:#fffdfa;
}
.uc-field textarea{min-height:86px;resize:vertical}
.uc-checks{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:10px}
.uc-checks label{display:flex;gap:8px;align-items:flex-start;background:#f7f0e4;border-radius:12px;padding:10px;color:#334e46;font-weight:700}
.uc-linkline{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.uc-linkline a{display:inline-flex;align-items:center;gap:7px;border-radius:999px;background:#123d33;color:white;text-decoration:none;font-weight:900;padding:9px 13px}
.uc-muted{color:#6c7a74;font-size:13px}
@media(max-width:780px){
  .uc-root{margin:24px 12px;padding:20px}
  .uc-grid,.uc-form,.uc-checks{grid-template-columns:1fr}
  .uc-solfege{grid-template-columns:repeat(4,1fr)}
}