.bksf-tool{--bksf-primary:#5B4BDB;--bksf-primary-dark:#4536C7;--bksf-ink:#1B1B24;--bksf-muted:#6B6B78;--bksf-surface:#fff;--bksf-soft:#F7F7FB;--bksf-border:#E5E5EF;--bksf-success:#1F8A5B;--bksf-danger:#B42318;color:var(--bksf-ink);font-family:inherit;line-height:1.55}.bksf-tool *{box-sizing:border-box}.bksf-shell{max-width:1050px;margin:0 auto}.bksf-header{text-align:center;margin-bottom:24px}.bksf-header h2{margin:6px 0 8px;font-size:clamp(28px,4vw,42px);line-height:1.12}.bksf-header p{margin:0 auto;max-width:700px;color:var(--bksf-muted)}.bksf-kicker{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--bksf-primary)}.bksf-mode-tabs{display:grid;grid-template-columns:1fr 1fr;gap:8px;background:var(--bksf-soft);padding:6px;border:1px solid var(--bksf-border);border-radius:14px;margin-bottom:18px}.bksf-tab{min-height:48px;border:0;border-radius:10px;background:transparent;font:inherit;font-weight:700;color:var(--bksf-muted);cursor:pointer}.bksf-tab.is-active{background:var(--bksf-surface);color:var(--bksf-primary);box-shadow:0 3px 14px rgba(20,20,50,.08)}.bksf-grid{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:18px}.bksf-card{background:var(--bksf-surface);border:1px solid var(--bksf-border);border-radius:18px;box-shadow:0 10px 28px rgba(24,24,50,.06);padding:22px}.bksf-field-head,.bksf-result-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.bksf-field-head label,.bksf-field label{font-weight:700}.bksf-count{font-size:13px;color:var(--bksf-muted)}.bksf-note-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin:12px 0 18px}.bksf-note-btn{min-height:48px;border:1px solid var(--bksf-border);border-radius:10px;background:var(--bksf-soft);font:inherit;font-weight:800;cursor:pointer}.bksf-note-btn[aria-pressed="true"]{background:var(--bksf-primary);border-color:var(--bksf-primary);color:#fff}.bksf-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.bksf-field{display:grid;gap:7px;margin-bottom:14px}.bksf-field select{width:100%;min-height:48px;border:1px solid var(--bksf-border);border-radius:10px;background:#fff;padding:0 12px;font:inherit;font-size:16px;color:var(--bksf-ink)}.bksf-actions{display:flex;gap:10px;margin-top:4px}.bksf-btn{min-height:48px;padding:0 16px;border-radius:10px;font:inherit;font-weight:800;cursor:pointer;border:1px solid transparent}.bksf-btn-primary{background:var(--bksf-primary);color:#fff}.bksf-btn-primary:hover{background:var(--bksf-primary-dark)}.bksf-btn-secondary{background:#fff;border-color:var(--bksf-border);color:var(--bksf-ink)}.bksf-btn:disabled{opacity:.5;cursor:not-allowed}.bksf-tab:focus-visible,.bksf-note-btn:focus-visible,.bksf-btn:focus-visible,.bksf-field select:focus-visible{outline:3px solid rgba(91,75,219,.25);outline-offset:2px}.bksf-note-box{margin-top:18px;padding:14px;border-radius:12px;background:var(--bksf-soft);color:var(--bksf-muted);font-size:13px}.bksf-note-box p{margin:0 0 7px}.bksf-note-box p:last-child{margin-bottom:0}.bksf-result-card{min-height:500px}.bksf-result-head h3{margin:4px 0 0;font-size:21px}.bksf-status{margin:16px 0;padding:12px 14px;background:var(--bksf-soft);border-radius:10px;color:var(--bksf-muted)}.bksf-match{border:1px solid var(--bksf-border);border-radius:14px;padding:16px;margin-bottom:12px}.bksf-match-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.bksf-match h4{margin:0 0 4px;font-size:18px}.bksf-badge{white-space:nowrap;background:#EEF8F3;color:var(--bksf-success);padding:5px 9px;border-radius:999px;font-size:12px;font-weight:800}.bksf-note-line{font-weight:800;color:var(--bksf-primary);margin:8px 0}.bksf-meta{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:10px}.bksf-meta div{background:var(--bksf-soft);padding:10px;border-radius:9px}.bksf-meta span{display:block;font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--bksf-muted);font-weight:800}.bksf-piano{display:flex;align-items:flex-end;gap:3px;min-height:120px;margin-top:18px;padding:12px;background:#22222A;border-radius:12px;overflow-x:auto}.bksf-key{position:relative;display:flex;align-items:flex-end;justify-content:center;min-width:42px;height:96px;border-radius:0 0 6px 6px;background:#fff;color:#222;font-size:11px;font-weight:800;padding-bottom:7px}.bksf-key.black{height:64px;background:#3A3A44;color:#fff}.bksf-key.active{box-shadow:inset 0 -8px 0 var(--bksf-primary)}.bksf-history-card{margin-top:18px}.bksf-history{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:14px}.bksf-history-item{border:1px solid var(--bksf-border);border-radius:10px;padding:12px}.bksf-history-item strong{display:block}.bksf-history-item span,.bksf-empty{color:var(--bksf-muted);font-size:13px}.bksf-empty{margin:0}.bksf-panel[hidden]{display:none!important}@media(max-width:780px){.bksf-grid{grid-template-columns:1fr}.bksf-row{grid-template-columns:1fr}.bksf-note-grid{grid-template-columns:repeat(4,1fr)}.bksf-history{grid-template-columns:1fr}.bksf-result-head{align-items:flex-start;flex-direction:column}.bksf-result-head .bksf-btn{width:100%}}@media(max-width:480px){.bksf-card{padding:16px;border-radius:14px}.bksf-mode-tabs{grid-template-columns:1fr}.bksf-note-grid{grid-template-columns:repeat(3,1fr)}.bksf-meta{grid-template-columns:1fr}.bksf-actions .bksf-btn{width:100%}}