main{flex:1;display:flex;flex-direction:column;align-items:center;padding:24px;gap:24px}.panel-layout{width:100%;max-width:1100px;display:grid;grid-template-columns:1fr 1fr;gap:24px}.panel-left,.panel-right{display:flex;flex-direction:column;gap:16px}.card{background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:20px;display:flex;flex-direction:column;gap:14px}.card-header{color:#fff;font-size:14px;font-weight:600;border-bottom:1px solid var(--border);padding-bottom:10px}.control-group{display:flex;flex-direction:column;gap:6px}.control-group label{font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}.mono-input{background:var(--bg3);border:1px solid var(--border);color:#fff;padding:12px 14px;border-radius:var(--r);outline:none;font-family:JetBrains Mono,monospace;font-size:16px;transition:border-color .2s}.mono-input:focus{border-color:var(--accent)}.presets{display:flex;flex-wrap:wrap;gap:6px}.preset-tag{background:var(--bg3);border:1px solid var(--border);padding:5px 10px;border-radius:6px;font-size:11px;font-family:JetBrains Mono,monospace;color:var(--muted);cursor:pointer;transition:all .2s}.preset-tag:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-dim)}.dur-reverse-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.dur-rev-field{display:flex;flex-direction:column;gap:4px}.dur-rev-field label{font-family:JetBrains Mono,monospace;font-size:12px;color:var(--muted);font-weight:700}.dur-rev-field input{background:var(--bg3);border:1px solid var(--border);color:#fff;padding:8px;border-radius:6px;outline:none;font-family:JetBrains Mono,monospace;font-size:14px;text-align:center}.dur-rev-field input:focus{border-color:var(--accent)}.dur-reverse-output{background:var(--bg3);border:1px solid var(--border);border-radius:6px;padding:10px 14px;font-family:JetBrains Mono,monospace;font-size:16px;color:var(--accent);text-align:center}.dur-breakdown{display:flex;flex-direction:column;gap:6px}.dur-break-item{display:flex;justify-content:space-between;background:var(--bg3);border:1px solid var(--border);border-radius:6px;padding:10px 14px}.dur-break-label{color:var(--muted);font-size:12px;font-weight:600;text-transform:uppercase}.dur-break-value{color:#fff;font-family:JetBrains Mono,monospace;font-size:16px;font-weight:600}.dur-empty,.rt-empty{color:var(--muted);font-size:13px;padding:20px 0;text-align:center}.dur-totals{display:flex;flex-direction:column;gap:6px}.dur-total-item{display:flex;justify-content:space-between;background:var(--bg3);border:1px solid var(--border);border-radius:6px;padding:8px 14px}.dur-total-label{color:var(--muted);font-size:12px}.dur-total-value{color:var(--accent);font-family:JetBrains Mono,monospace;font-size:14px;font-weight:600}.dur-readable{background:var(--bg3);border:1px solid var(--border);border-radius:8px;padding:14px;font-size:15px;color:#fff;line-height:1.5}@media(max-width:768px){.panel-layout{grid-template-columns:1fr}.dur-reverse-grid{grid-template-columns:repeat(2,1fr)}main{padding:12px}}