.oom-tool{--p:#7c3aed;--s:#06b6d4;--a:#f59e0b;--bg:#f8fafc;--surface:#fff;--text:#172033;--muted:#64748b;--border:#d9e2ec;--ok:#15803d;--err:#dc2626;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.5}.oom-tool *{box-sizing:border-box}.oom-shell{max-width:960px;margin:2rem auto;padding:1rem;background:var(--bg);border:1px solid var(--border);border-radius:20px;box-shadow:0 18px 50px rgba(23,32,51,.08)}.oom-header{text-align:center;padding:1rem .5rem 1.25rem}.oom-header h2{margin:.25rem 0 .5rem;font-size:clamp(1.8rem,5vw,2.7rem)}.oom-header p{max-width:700px;margin:0 auto;color:var(--muted)}.oom-kicker{color:var(--p)!important;font-size:.8rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.oom-card,.oom-status-card,.oom-history{margin-top:1rem;padding:1rem;background:var(--surface);border:1px solid var(--border);border-radius:15px}.oom-tempo-card{text-align:center}.oom-bpm-display{display:flex;align-items:baseline;justify-content:center;gap:.5rem}.oom-bpm-display input{width:min(100%,320px);padding:.2rem;border:0;border-bottom:2px solid var(--border);background:transparent;font-size:clamp(3rem,11vw,5.5rem);font-weight:850;text-align:center}.oom-bpm-display span{font-weight:800;color:var(--muted)}.oom-tool input[type=range]{width:100%;accent-color:var(--p)}.oom-step-row,.oom-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:.7rem}.oom-step-row{margin-top:1rem}.oom-icon-button,.oom-button{min-height:44px;padding:.7rem 1rem;border:1px solid transparent;border-radius:10px;font:inherit;font-weight:750;cursor:pointer}.oom-icon-button{border-color:var(--border);background:#fff}.oom-button:disabled{opacity:.5;cursor:not-allowed}.oom-button-primary{background:var(--p);color:#fff}.oom-button-danger{background:var(--err);color:#fff}.oom-button-secondary{border-color:var(--border);background:#fff;color:var(--text)}.oom-tempo-name{margin:.8rem 0 0;color:var(--p);font-weight:800}.oom-grid{display:grid;gap:1rem}.oom-field{display:grid;gap:.4rem}.oom-field label{font-size:.9rem;font-weight:750}.oom-field input[type=number],.oom-field select{min-height:44px;width:100%;padding:.55rem .7rem;border:1px solid var(--border);border-radius:9px;background:#fff;color:var(--text);font:inherit}.oom-actions{margin:1rem 0}.oom-tool button:focus-visible,.oom-tool input:focus-visible,.oom-tool select:focus-visible{outline:3px solid rgba(124,58,237,.35);outline-offset:3px}.oom-error{margin:1rem 0;padding:.9rem 1rem;border:1px solid rgba(220,38,38,.25);border-radius:10px;background:rgba(220,38,38,.07);color:var(--err)}.oom-status-top{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem;border-radius:13px;background:linear-gradient(135deg,rgba(124,58,237,.1),rgba(6,182,212,.1))}.oom-status-top span,.oom-metric span{display:block;color:var(--muted);font-size:.78rem;font-weight:750;text-transform:uppercase}.oom-status-top strong{font-size:2rem}.oom-status-text{font-weight:800;color:var(--p)}.oom-beats{display:flex;flex-wrap:wrap;justify-content:center;gap:.5rem;margin:1rem 0}.oom-beat-dot{display:grid;width:42px;height:42px;place-items:center;border-radius:50%;background:#e9edf3;font-weight:800}.oom-beat-dot.is-active{background:var(--p);color:#fff;transform:scale(1.08)}.oom-beat-dot.is-accent{box-shadow:0 0 0 3px rgba(245,158,11,.35)}.oom-metrics{margin-top:1rem}.oom-metric{padding:.9rem;border:1px solid var(--border);border-radius:10px}.oom-metric strong{display:block;margin-top:.25rem}.oom-copy-status{min-height:1.5em;color:var(--ok);text-align:center}.oom-keyboard-help{text-align:center;color:var(--muted);font-size:.85rem}.oom-history-header{display:flex;align-items:center;justify-content:space-between}.oom-history h3{margin:0;font-size:1.05rem}.oom-link-button{border:0;background:transparent;color:var(--p);font:inherit;font-weight:750;cursor:pointer}.oom-history-item{display:grid;grid-template-columns:1fr auto;gap:.3rem 1rem;padding:.8rem 0;border-bottom:1px solid var(--border)}.oom-history-item small,.oom-empty{color:var(--muted)}[hidden]{display:none!important}@media(min-width:640px){.oom-shell{padding:1.5rem}.oom-grid-two{grid-template-columns:repeat(2,minmax(0,1fr))}.oom-grid-three{grid-template-columns:repeat(3,minmax(0,1fr))}.oom-grid-four{grid-template-columns:repeat(4,minmax(0,1fr))}}@media(prefers-reduced-motion:reduce){.oom-tool *{transition-duration:.01ms!important}}