:root{--bg:#0b0e1a;--surface:#121526;--card:#181c30;--card-hover:#1e2238;--card-active:#212540;--accent:#e8a838;--accent-dim:#c8881e;--accent-glow:#e8a83838;--accent-sub:#e8a83814;--accent-border:#e8a83873;--violet:#7c6fcd;--violet-glow:#7c6fcd2e;--text:#e2e6f6;--text-2:#8892b4;--text-3:#4a5278;--border:#22273e;--border-light:#2c3250;--success:#4caf82;--danger:#e05c5c;--r-sm:6px;--r-md:10px;--r-lg:16px;--r-xl:22px;--shadow-sm:0 2px 8px #00000059;--shadow-md:0 4px 20px #00000080;--shadow-lg:0 8px 40px #000000a6;--shadow-glow:0 0 24px var(--accent-glow);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,system-ui,sans-serif;font-size:15px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}button{cursor:pointer;font:inherit;background:0 0;border:none}input{font:inherit}@keyframes fadeSlideUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes chordIn{0%{opacity:0;transform:scale(.78)translateY(8px)}to{opacity:1;transform:scale(1)translateY(0)}}@keyframes sectionIn{0%{opacity:0;transform:translate(-12px)}to{opacity:1;transform:translate(0)}}@keyframes pulse-ring{0%{box-shadow:0 0 0 0 var(--accent-glow)}60%{box-shadow:0 0 0 8px #0000}to{box-shadow:0 0 #0000}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes shimmer{0%{background-position:-200%}to{background-position:200%}}@keyframes stepReveal{0%{opacity:0;transform:translateY(26px)scale(.97)}to{opacity:1;transform:translateY(0)scale(1)}}@keyframes stepGlow{0%{box-shadow:0 0 0 1px var(--accent), 0 0 30px var(--accent-glow)}to{box-shadow:0 0 #0000,0 0 #0000}}@keyframes badgePop{0%{opacity:0;transform:scale(.6)}60%{transform:scale(1.12)}to{opacity:1;transform:scale(1)}}@keyframes 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var(--border);border-radius:var(--r-md);gap:2px;padding:3px;display:inline-flex}.notation-btn{color:var(--text-2);border-radius:7px;padding:6px 13px;font-size:12px;font-weight:600;transition:background .15s,color .15s}.notation-btn:hover{color:var(--text);background:var(--card-hover)}.notation-btn.selected{background:var(--accent);color:#0b0e1a}.notation-hint{color:var(--text-3);font-size:11px}@media (width<=480px){.notation-hint{display:none}}.scale-tabs{flex-wrap:wrap;gap:4px;margin-bottom:12px;display:flex}.scale-tab{color:var(--text-2);background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:5px 13px;font-size:12px;font-weight:500;transition:all .15s}.scale-tab:hover{border-color:var(--text-3);color:var(--text)}.scale-tab.active{color:var(--accent);border-color:var(--accent-border);background:var(--accent-sub)}.scale-grid{grid-template-columns:repeat(2,1fr);gap:6px;display:grid}.scale-btn{text-align:left;background:var(--card-hover);border:1px solid var(--border-light);border-radius:var(--r-md);padding:10px 12px;transition:all .15s}.scale-btn:hover{background:var(--card-active);border-color:var(--text-3)}.scale-btn.selected{background:var(--accent-sub);border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}.scale-btn.selected .sc-name{color:var(--accent)}.sc-name{color:var(--text);margin-bottom:2px;font-size:13px;font-weight:600;display:block}.sc-desc{color:var(--text-2);font-size:11px;line-height:1.35;display:block}.form-presets{flex-wrap:wrap;gap:6px;margin-bottom:12px;display:flex}.form-chip{color:var(--text-2);background:var(--card-hover);border:1px solid var(--border-light);border-radius:var(--r-md);flex-direction:column;align-items:flex-start;gap:1px;padding:7px 14px;font-size:12px;font-weight:500;transition:all .15s;display:flex}.form-chip:hover{background:var(--card-active);border-color:var(--text-3)}.form-chip.selected{color:var(--accent);background:var(--accent-sub);border-color:var(--accent);box-shadow:0 0 0 1px 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.15s}.btn-act:hover{color:var(--text);border-color:var(--text-3)}.btn-act.primary{color:var(--accent);border-color:var(--accent-border);background:var(--accent-sub)}.btn-act.primary:hover{box-shadow:0 0 0 1px var(--accent);background:#e8a83826}.section-cards{flex-direction:column;display:flex}.section-card{background:var(--card);border:1px solid var(--border);border-top:none;padding:14px 16px 16px;animation:.35s both sectionIn}.section-card:last-child{border-radius:0 0 var(--r-lg) var(--r-lg)}.section-card:first-child{animation-delay:50ms}.section-card:nth-child(2){animation-delay:.12s}.section-card:nth-child(3){animation-delay:.19s}.section-card:nth-child(4){animation-delay:.26s}.section-card:nth-child(5){animation-delay:.33s}.sec-header{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.sec-name{color:var(--accent);letter-spacing:1.5px;text-transform:uppercase;font-size:11px;font-weight:700}.sec-bars{color:var(--text-3);font-family:JetBrains 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var(--border);border-radius:var(--r-md);z-index:10;gap:2px;padding:2px;display:inline-flex;position:absolute;top:16px;right:20px}.lang-btn{letter-spacing:.5px;color:var(--text-2);border-radius:7px;padding:5px 9px;font-size:11px;font-weight:700;transition:background .15s,color .15s}.lang-btn:hover{color:var(--text);background:var(--card-hover)}.lang-btn.active{background:var(--accent);color:#0b0e1a}