:root{--bg-dark: #080c14;--card-bg: rgba(15, 23, 42, .75);--border-color: rgba(255, 255, 255, .08);--primary: #0055bb;--primary-glow: rgba(0, 85, 187, .4);--accent: #00e5ff;--accent-glow: rgba(0, 229, 255, .35);--danger: #ff2a5f;--text-bright: #ffffff;--text-muted: #94a3b8;--font-main: "Inter", system-ui, -apple-system, sans-serif;--font-mono: "JetBrains Mono", monospace}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-dark);background-image:radial-gradient(circle at 15% 15%,rgba(0,85,187,.12) 0%,transparent 40%),radial-gradient(circle at 85% 85%,rgba(0,229,255,.08) 0%,transparent 40%);color:var(--text-bright);font-family:var(--font-main);min-height:100vh;padding:1.5rem}.app-container{max-width:1400px;margin:0 auto;display:flex;flex-direction:column;gap:1.25rem}.app-header{display:flex;justify-content:space-between;align-items:center;background:var(--card-bg);border:1px solid var(--border-color);padding:1rem 1.5rem;border-radius:16px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.header-branding{display:flex;align-items:center;gap:1rem}.cardiac-icon-container{width:48px;height:48px;background:#ff2a5f26;border:1px solid rgba(255,42,95,.3);border-radius:12px;display:flex;align-items:center;justify-content:center}.heart-pulse-icon{color:var(--danger);font-size:1.6rem;animation:pulse 1.2s infinite ease-in-out}@keyframes pulse{0%{transform:scale(1)}15%{transform:scale(1.25)}30%{transform:scale(1)}45%{transform:scale(1.15)}60%{transform:scale(1)}}.header-branding h1{font-size:1.4rem;font-weight:800;display:flex;align-items:center;gap:.6rem}.badge-live{background:#00e5ff26;color:var(--accent);border:1px solid rgba(0,229,255,.3);font-size:.7rem;padding:.2rem .5rem;border-radius:6px;font-weight:700}.subtitle{font-size:.85rem;color:var(--text-muted)}.status-indicator{display:flex;align-items:center;gap:.5rem;background:#0006;padding:.4rem .8rem;border-radius:20px;font-size:.85rem}.status-dot{width:8px;height:8px;border-radius:50%;background:#94a3b8}.status-dot.green{background:#10b981;box-shadow:0 0 8px #10b981}.audio-selection-card{background:var(--card-bg);border:1px solid var(--border-color);padding:1.25rem;border-radius:16px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.selection-options{display:flex;align-items:center;gap:1.5rem}.selection-divider{color:var(--text-muted);font-weight:700;font-size:.85rem}.dropzone{flex:1;border:2px dashed rgba(255,255,255,.15);border-radius:12px;padding:.75rem 1rem;transition:all .2s ease;background:#0003}.dropzone:hover,.dropzone.dragover{border-color:var(--accent);background:#00e5ff0d}.file-input-hidden{display:none}.dropzone-label{display:flex;align-items:center;gap:.75rem;cursor:pointer}.dropzone-icon{font-size:1.5rem}.dropzone-text{font-weight:600;font-size:.9rem}.dropzone-hint{font-size:.75rem;color:var(--text-muted);margin-left:auto}.btn{display:inline-flex;align-items:center;gap:.6rem;padding:.65rem 1.2rem;border-radius:10px;font-weight:600;font-size:.9rem;cursor:pointer;border:none;transition:all .2s ease}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:#06d;box-shadow:0 0 15px var(--primary-glow)}.btn-accent{background:linear-gradient(135deg,#00e5ff,#08f);color:#040d1a;font-weight:700}.btn-accent:hover{transform:translateY(-1px);box-shadow:0 0 20px var(--accent-glow)}.btn-secondary{background:#ffffff14;color:#fff;border:1px solid rgba(255,255,255,.12)}.btn-secondary:hover{background:#ffffff26}.btn-tertiary{background:transparent;color:var(--text-muted)}.btn-tertiary:hover{color:#fff}.btn-sm{padding:.4rem .8rem;font-size:.82rem;border-radius:8px}.btn-text-block{display:flex;flex-direction:column;text-align:left}.btn-title{font-weight:700;font-size:.9rem}.btn-sub{font-size:.72rem;opacity:.8}.metrics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}.metric-card{background:var(--card-bg);border:1px solid var(--border-color);padding:1rem 1.2rem;border-radius:14px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.metric-header{display:flex;justify-content:space-between;color:var(--text-muted);font-size:.8rem;font-weight:600}.metric-value-wrapper{margin:.4rem 0;display:flex;align-items:baseline;gap:.4rem}.metric-value{font-family:var(--font-mono);font-size:1.8rem;font-weight:700;color:var(--accent)}.metric-unit{font-size:.8rem;color:var(--text-muted)}.metric-footer{font-size:.75rem;color:var(--text-muted)}.visualizer-workspace{background:var(--card-bg);border:1px solid var(--border-color);border-radius:16px;padding:1.25rem;display:flex;flex-direction:column;gap:1rem;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.workspace-toolbar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem;padding-bottom:.8rem;border-bottom:1px solid var(--border-color)}.toolbar-group{display:flex;align-items:center;gap:.6rem}.toolbar-label{font-size:.82rem;color:var(--text-muted);font-weight:600}.select-input{background:#0006;border:1px solid var(--border-color);color:var(--text-bright);padding:.45rem .8rem;border-radius:8px;font-size:.85rem;outline:none}.select-input-sm{background:#0006;border:1px solid var(--border-color);color:var(--text-bright);padding:.3rem .6rem;border-radius:6px;font-size:.8rem}.toggle-control{display:flex;align-items:center;gap:.4rem;cursor:pointer;font-size:.82rem}.canvas-wrapper{position:relative;width:100%;height:380px;border-radius:12px;overflow:hidden;box-shadow:inset 0 0 20px #0009}#phonocardiogramCanvas{width:100%;height:100%;display:block}.audio-controls-panel{display:flex;align-items:center;gap:1.25rem;background:#0000004d;padding:.75rem 1.2rem;border-radius:12px}.playback-buttons{display:flex;align-items:center;gap:.6rem}.btn-circle{width:42px;height:42px;border-radius:50%;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:1.1rem;transition:all .2s ease}.btn-play{background:var(--accent);color:#040d1a}.btn-play:hover{transform:scale(1.08);box-shadow:0 0 15px var(--accent-glow)}.btn-stop{background:#ffffff1a;color:#fff}.btn-stop:hover{background:#fff3}.timeline-scrubber-wrapper{flex:1;display:flex;align-items:center;gap:.8rem}.time-display{font-family:var(--font-mono);font-size:.82rem;color:var(--text-muted)}.timeline-slider{flex:1;accent-color:var(--accent);cursor:pointer}.badge-loop{background:#00e5ff1f;border:1px solid rgba(0,229,255,.4);color:#00e5ff;padding:.25rem .6rem;border-radius:12px;font-size:.75rem;font-weight:600;margin-left:.5rem;display:inline-flex;align-items:center;gap:.3rem}.beat-selector-card{background:#121a26bf;border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:1.25rem;margin-top:.5rem;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.selector-card-header{display:flex;flex-direction:column;gap:.3rem;margin-bottom:1rem}.selector-card-title{display:flex;align-items:center;gap:.5rem}.selector-card-title h3{font-size:1.05rem;font-weight:700;color:#f0f6fc}.selector-hint{font-size:.82rem;color:#8b949e}.selector-controls-row{display:flex;flex-wrap:wrap;align-items:center;gap:.75rem;margin-bottom:1rem;padding-bottom:.85rem;border-bottom:1px solid rgba(255,255,255,.06)}.time-inputs-group{display:flex;align-items:center;gap:.8rem}.time-inputs-group label{font-size:.85rem;font-weight:600;color:#c9d1d9}.num-input{background:#0d1117;border:1px solid rgba(255,255,255,.15);color:#58a6ff;padding:.3rem .5rem;border-radius:6px;width:75px;font-family:JetBrains Mono,monospace;font-size:.85rem}.active-regions-block{display:flex;flex-direction:column;gap:.75rem}.regions-header{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem}.regions-title{font-size:.85rem;font-weight:600;color:#8b949e}.regions-actions{display:flex;gap:.5rem}.regions-chip-list{display:flex;flex-wrap:wrap;gap:.5rem;min-height:38px;align-items:center;background:#0d111799;padding:.5rem .75rem;border-radius:8px;border:1px dashed rgba(255,255,255,.1)}.region-chip{background:#0055bb40;border:1px solid rgba(0,85,187,.6);color:#58a6ff;padding:.25rem .6rem;border-radius:12px;font-size:.8rem;font-weight:600;display:inline-flex;align-items:center;gap:.4rem}.chip-remove{background:none;border:none;color:#ff4a6e;cursor:pointer;font-weight:700;font-size:.9rem;padding:0;line-height:1}.empty-region-text{font-size:.8rem;color:#8b949e;font-style:italic}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000d9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:1.5rem}.modal-overlay.hidden{display:none}.modal-card{background:#0f172a;border:1px solid var(--border-color);border-radius:20px;max-width:1000px;width:100%;display:flex;flex-direction:column;overflow:hidden}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:1.25rem 1.5rem;border-bottom:1px solid var(--border-color)}.modal-header h2{font-size:1.15rem;font-weight:700}.btn-close{background:none;border:none;color:var(--text-muted);font-size:1.8rem;cursor:pointer}.modal-body{padding:1.5rem}.modal-subtitle{font-size:.85rem;color:var(--text-muted);margin-bottom:1rem}.image-preview-container{width:100%;background:#000;border-radius:12px;overflow:hidden;border:1px solid var(--border-color)}.image-preview-container img{width:100%;height:auto;display:block}.modal-footer{display:flex;justify-content:flex-end;gap:.75rem;padding:1rem 1.5rem;border-top:1px solid var(--border-color);background:#0003}