:root{--dbc-primary:#6366f1;--dbc-primary-light:#eef2ff;--dbc-text:#1e293b;--dbc-text-secondary:#475569;--dbc-text-muted:#64748b;--dbc-bg:#fff;--dbc-bg-secondary:#f8fafc;--dbc-border:#e2e8f0;--dbc-radius:var(--main-radius,.5rem);--dbc-radius-lg:var(--main-radius-lg,.75rem);--dbc-shadow:0 1px 3px #0000000f, 0 1px 2px #0000000a;--dbc-shadow-md:0 4px 12px #00000014;--dbc-danger:#ef4444;--dbc-danger-light:#fef2f2;--dbc-warning:#f59e0b;--dbc-safe:#10b981}._dbc-container{max-width:560px;margin:0 auto}._dbc-hidden{display:none!important}@media (max-width:768px){._dbc-container{padding-left:1rem;padding-right:1rem}}._dbc-tabs{background:var(--dbc-bg);border-radius:var(--dbc-radius-lg);box-shadow:var(--dbc-shadow);border-style:solid;border-width:1px;border-color:var(--dbc-border);gap:.5rem;margin-bottom:1.5rem;padding:.25rem;display:flex}._dbc-tab{border-radius:var(--dbc-radius);color:var(--dbc-text-muted);cursor:pointer;background:0 0;border-width:0;flex:1;justify-content:center;align-items:center;gap:.375rem;padding:.625rem .75rem;font-family:inherit;font-size:.875rem;font-weight:500;transition:all .2s;display:flex}._dbc-tab:hover{color:var(--dbc-text-secondary);background:var(--dbc-bg-secondary)}._dbc-tab._dbc-tab-active{background:var(--dbc-primary);color:#fff;box-shadow:0 2px 8px #6366f140}._dbc-tab svg{flex-shrink:0;width:14px;height:14px}@media (max-width:480px){._dbc-tab{flex-direction:column;gap:.125rem;padding:.5rem;font-size:.8125rem}}._dbc-card{background:var(--dbc-bg);border-radius:var(--dbc-radius-lg);box-shadow:var(--dbc-shadow);border-style:solid;border-width:1px;border-color:var(--dbc-border);margin-bottom:1rem;padding:1.25rem}._dbc-field{margin-bottom:1rem}._dbc-field:last-of-type{margin-bottom:0}._dbc-label{color:var(--dbc-text);margin-bottom:.375rem;font-size:.8125rem;font-weight:600;display:block}._dbc-input-row{gap:.5rem;display:flex}._dbc-input-wrapper{background:var(--dbc-bg-secondary);border-style:solid;border-width:1.5px;border-color:var(--dbc-border);border-radius:var(--dbc-radius);flex:1;align-items:center;transition:border-color .2s,box-shadow .2s;display:flex;overflow:hidden}._dbc-input-wrapper:focus-within{border-color:var(--dbc-primary);box-shadow:0 0 0 3px #6366f11a}._dbc-input{color:var(--dbc-text);background:0 0;border:none;outline:none;flex:1;min-width:0;padding:.625rem .75rem;font-family:inherit;font-size:1rem;font-weight:500}._dbc-input::placeholder{color:#94a3b8}._dbc-input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}._dbc-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}._dbc-input[type=number]{-moz-appearance:textfield}._dbc-select{border-style:solid;border-width:1.5px;border-color:var(--dbc-border);border-radius:var(--dbc-radius);background:var(--dbc-bg);width:80px;color:var(--dbc-text);cursor:pointer;outline:none;flex-shrink:0;padding:.625rem .5rem;font-family:inherit;font-size:.8125rem;font-weight:500;transition:border-color .2s}._dbc-select:focus{border-color:var(--dbc-primary)}._dbc-mode-btns{gap:.375rem;display:flex}._dbc-mode-btn,._dbc-type-btn{border-style:solid;border-width:1.5px;border-color:var(--dbc-border);border-radius:var(--dbc-radius);background:var(--dbc-bg);color:var(--dbc-text-muted);cursor:pointer;flex:1;padding:.5rem .75rem;font-family:inherit;font-size:.8125rem;font-weight:500;transition:all .15s}._dbc-mode-btn:hover,._dbc-type-btn:hover{border-color:var(--dbc-primary);color:var(--dbc-text-secondary)}._dbc-mode-btn._dbc-mode-active,._dbc-type-btn._dbc-mode-active{background:var(--dbc-primary-light);border-color:var(--dbc-primary);color:var(--dbc-primary);font-weight:600}._dbc-actions{border-top-style:solid;border-top-width:1px;border-top-color:var(--dbc-border);justify-content:flex-end;margin-top:1rem;padding-top:.75rem;display:flex}._dbc-btn-ghost{border-radius:var(--dbc-radius);color:var(--dbc-text-muted);cursor:pointer;background:0 0;border:none;align-items:center;gap:.375rem;padding:.5rem .875rem;font-family:inherit;font-size:.8125rem;font-weight:500;transition:all .15s;display:inline-flex}._dbc-btn-ghost:hover{color:var(--dbc-text);background:var(--dbc-bg-secondary)}._dbc-btn-ghost svg{width:14px;height:14px}@media (max-width:480px){._dbc-card{padding:1rem}._dbc-mode-btns{flex-direction:column}._dbc-select{width:70px}}._dbc-result-section{animation:.3s _dbc-fadeIn}@keyframes _dbc-fadeIn{0%{opacity:0}to{opacity:1}}._dbc-result-card{background:var(--dbc-bg);border-radius:var(--dbc-radius-lg);box-shadow:var(--dbc-shadow);border-style:solid;border-width:1px;border-color:var(--dbc-border);text-align:center;margin-bottom:1rem;padding:1.5rem}._dbc-result-label{color:var(--dbc-text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.375rem;font-size:.8125rem;font-weight:500}._dbc-result-value{color:var(--dbc-primary);font-size:2.5rem;font-weight:700;line-height:1.2;font-family:var(--main-font-mono,monospace);word-break:break-all}._dbc-result-unit{color:var(--dbc-text-secondary);margin-top:.25rem;font-size:.9375rem;font-weight:500}@media (max-width:480px){._dbc-result-card{padding:1.25rem}._dbc-result-value{font-size:2rem}}._dbc-formula-card{background:var(--dbc-bg);border-radius:var(--dbc-radius-lg);box-shadow:var(--dbc-shadow);border-style:dashed;border-width:1px;border-color:var(--dbc-border);margin-bottom:1rem;padding:1rem 1.25rem}._dbc-formula-title{color:var(--dbc-text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.5rem;font-size:.75rem;font-weight:600}._dbc-formula-content{color:var(--dbc-text);font-size:1rem;font-weight:500;font-family:var(--main-font-mono,monospace);word-break:break-all;line-height:1.6}._dbc-formula-content ._dbc-highlight{color:var(--dbc-primary);font-weight:700}@media (max-width:480px){._dbc-formula-content{font-size:.875rem}}._dbc-sound-level{background:var(--dbc-bg);border-radius:var(--dbc-radius-lg);box-shadow:var(--dbc-shadow);border-style:solid;border-width:1px;border-color:var(--dbc-border);margin-bottom:1rem;padding:1.25rem}._dbc-sound-level-title{color:var(--dbc-text-secondary);align-items:center;gap:.5rem;margin-bottom:1rem;font-size:.8125rem;font-weight:600;display:flex}._dbc-sound-level-title svg{width:14px;height:14px;color:var(--dbc-primary)}._dbc-sound-bar-wrapper{margin-bottom:1rem}._dbc-sound-bar{border-style:solid;border-width:1px;border-color:var(--dbc-border);background:linear-gradient(90deg,#10b981 0% 25%,#f59e0b 43%,#ef4444 62%,#991b1b 100%);border-radius:12px;height:24px;position:relative;overflow:visible}._dbc-sound-bar-fill{background:#ffffff4d;border-radius:12px;height:100%;transition:width .4s;position:absolute;top:0;left:0}._dbc-sound-bar-marker{color:var(--dbc-text);background:var(--dbc-bg);border-radius:var(--dbc-radius);box-shadow:var(--dbc-shadow-md);border-style:solid;border-width:1px;border-color:var(--dbc-border);white-space:nowrap;font-size:.6875rem;font-weight:700;font-family:var(--main-font-mono,monospace);z-index:2;padding:.125rem .375rem;position:absolute;top:-28px;transform:translate(-50%)}._dbc-sound-labels{justify-content:space-between;margin-top:.375rem;padding:0 .25rem;display:flex}._dbc-sound-labels span{color:var(--dbc-text-muted);font-size:.625rem;font-weight:500;font-family:var(--main-font-mono,monospace)}._dbc-sound-refs{grid-template-columns:1fr 1fr;gap:.375rem 1rem;min-height:100px;display:grid}._dbc-sound-ref{align-items:center;gap:.5rem;font-size:.75rem;display:flex}._dbc-sound-ref-db{color:var(--dbc-text-secondary);font-weight:600;font-family:var(--main-font-mono,monospace);min-width:42px}._dbc-sound-ref-label{color:var(--dbc-text-muted);font-weight:400}._dbc-sound-ref-danger ._dbc-sound-ref-db{color:var(--dbc-danger)}._dbc-warning{background:var(--dbc-danger-light);border-radius:var(--dbc-radius-lg);border:1px solid #ef444433;gap:.75rem;margin-bottom:1rem;padding:1rem 1.25rem;animation:.3s _dbc-fadeIn;display:flex}._dbc-warning-icon{color:var(--dbc-danger);flex-shrink:0;margin-top:.125rem}._dbc-warning-icon svg{width:16px;height:16px}._dbc-warning-title{color:var(--dbc-danger);margin-bottom:.25rem;font-size:.8125rem;font-weight:700}._dbc-warning-text{color:var(--dbc-warning-text,#991b1b);font-size:.8125rem;line-height:1.5}@media (max-width:480px){._dbc-sound-level{padding:1rem}._dbc-sound-refs{grid-template-columns:1fr;gap:.25rem}._dbc-warning{padding:.875rem 1rem}}._dbc-sources-list{flex-direction:column;gap:.5rem;min-height:88px;display:flex}._dbc-source-row{align-items:center;gap:.5rem;display:flex}._dbc-source-num{color:var(--dbc-text-muted);min-width:24px;font-size:.75rem;font-weight:600;font-family:var(--main-font-mono,monospace)}._dbc-source-unit{color:var(--dbc-text-muted);min-width:20px;font-size:.8125rem;font-weight:500}._dbc-source-remove{border-radius:var(--dbc-radius);width:28px;height:28px;color:var(--dbc-text-muted);cursor:pointer;background:0 0;border:none;flex-shrink:0;justify-content:center;align-items:center;transition:all .15s;display:flex}._dbc-source-remove:hover{color:var(--dbc-danger);background:var(--dbc-danger-light)}._dbc-source-remove svg{width:12px;height:12px}._dbc-sources-actions{margin-top:.5rem}._dbc-btn-add{border-style:dashed;border-width:1.5px;border-color:var(--dbc-border);border-radius:var(--dbc-radius);color:var(--dbc-text-muted);cursor:pointer;background:0 0;align-items:center;gap:.375rem;padding:.5rem .875rem;font-family:inherit;font-size:.8125rem;font-weight:500;transition:all .15s;display:inline-flex}._dbc-btn-add:hover{border-color:var(--dbc-primary);color:var(--dbc-primary)}._dbc-btn-add svg{width:14px;height:14px}._dbc-preset-btns{gap:.375rem;display:flex}._dbc-preset-btn{border-style:solid;border-width:1.5px;border-color:var(--dbc-border);border-radius:var(--dbc-radius);background:var(--dbc-bg);color:var(--dbc-text-muted);cursor:pointer;flex:1;padding:.5rem .75rem;font-family:inherit;font-size:.75rem;font-weight:500;transition:all .15s}._dbc-preset-btn:hover{border-color:var(--dbc-primary);color:var(--dbc-primary)}@media (max-width:480px){._dbc-preset-btns{flex-direction:column}}._dbc-reference{background:var(--dbc-bg);border-radius:var(--dbc-radius-lg);box-shadow:var(--dbc-shadow);border-style:solid;border-width:1px;border-color:var(--dbc-border);padding:1rem 1.25rem}._dbc-reference-title{color:var(--dbc-text-secondary);align-items:center;gap:.5rem;margin-bottom:.75rem;font-size:.8125rem;font-weight:600;display:flex}._dbc-reference-title svg{width:14px;height:14px;color:var(--dbc-primary)}._dbc-reference-content p{color:var(--dbc-text-muted);margin:0 0 .75rem;font-size:.8125rem;line-height:1.6}._dbc-reference-table{border-collapse:collapse;width:100%}._dbc-reference-table th,._dbc-reference-table td{text-align:left;border-bottom-style:solid;border-bottom-width:1px;border-bottom-color:var(--dbc-border);padding:.5rem .75rem;font-size:.8125rem}._dbc-reference-table th{color:var(--dbc-text-muted);text-transform:uppercase;letter-spacing:.05em;font-size:.75rem;font-weight:600}._dbc-reference-table td:first-child{font-family:var(--main-font-mono,monospace);color:var(--dbc-text);white-space:nowrap;font-weight:600}._dbc-reference-table td:last-child{color:var(--dbc-text-secondary);font-weight:500}._dbc-reference-table tr:last-child td{border-bottom:none}@media (max-width:480px){._dbc-reference{padding:.875rem 1rem}._dbc-reference-table td:first-child{font-size:.75rem}}