:root{--bg-primary:#0d0d1a;--bg-secondary:#1a1a2e;--bg-panel:#16213e;--bg-input:#0f3460;--border:#2a2a4a;--text-primary:#e0e0f0;--text-secondary:#88a;--accent-blue:#4fc3f7;--accent-orange:#ff9800;--accent-green:#66bb6a;--accent-red:#ef5350;--accent-capture:#ff7043}*{box-sizing:border-box;margin:0;padding:0}body{background:radial-gradient(circle at 18% 8%, #4fc3f714, transparent 24%), radial-gradient(circle at 84% 4%, #ff98000d, transparent 26%), var(--bg-primary);color:var(--text-primary);font-family:Segoe UI,Roboto,monospace;overflow-x:hidden}.app{flex-direction:column;height:100vh;display:flex;overflow:hidden}.app-header{background:linear-gradient(180deg, #1d1d36 0%, var(--bg-secondary) 100%);border-bottom:1px solid var(--border);text-align:center;padding:8px 20px}.app-header h1{color:var(--accent-blue);letter-spacing:1px;font-size:16px;font-weight:700}.app-header p{color:var(--text-secondary);margin-top:2px;font-size:12px}.app-layout{flex:1;grid-template-columns:280px 1fr 320px;gap:0;min-height:0;display:grid}.panel-left,.panel-right{background:linear-gradient(180deg, #162742 0%, var(--bg-panel) 18%, var(--bg-panel) 100%);border-right:1px solid var(--border);min-height:0;padding:10px;overflow-y:auto}.panel-right{border-right:none;border-left:1px solid var(--border)}.panel-center{flex-direction:column;gap:8px;padding:8px 10px;display:flex;overflow:hidden}.parameter-panel h2{color:var(--accent-blue);margin-bottom:10px;font-size:14px}.param-section{background:var(--bg-secondary);border:1px solid var(--border);border-radius:6px;margin-bottom:16px;padding:10px;box-shadow:inset 0 1px #ffffff08}.param-section h3{color:var(--accent-orange);text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px;font-size:12px}.param-field{margin-bottom:6px}.param-description{display:none}.param-field label{color:var(--text-secondary);margin-bottom:2px;font-size:11px;display:block}.param-input-row{align-items:center;gap:6px;display:flex}.param-input-row input[type=range]{height:4px;accent-color:var(--accent-blue);flex:1}.param-input-row input[type=number]{background:var(--bg-input);border:1px solid var(--border);width:65px;color:var(--text-primary);text-align:right;border-radius:4px;padding:3px 5px;font-family:monospace;font-size:12px}.param-input-row input[type=number]:focus{outline:1px solid var(--accent-blue)}.param-field input[type=text]{background:var(--bg-input);border:1px solid var(--border);width:100%;color:var(--text-primary);border-radius:4px;padding:3px 6px;font-family:monospace;font-size:12px}.unit{color:var(--text-secondary);min-width:20px;font-size:10px}.view-controls{justify-content:space-between;gap:8px;display:flex}.path-selector{gap:0;display:flex}.path-selector button{background:var(--bg-secondary);border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;padding:6px 14px;font-family:monospace;font-size:11px;transition:all .15s;box-shadow:inset 0 1px #ffffff08}.path-selector button:first-child{border-radius:4px 0 0 4px}.path-selector button:last-child{border-radius:0 4px 4px 0}.path-selector button.active{background:var(--accent-blue);color:#000;border-color:var(--accent-blue)}.visualization{background:var(--bg-secondary);border:1px solid var(--border);border-radius:6px;flex:0 auto;overflow:hidden;box-shadow:0 8px 24px #00000047}.visualization.diagram-mode{flex:auto;min-height:0;display:flex}.timing-diagram-svg,.path-diagram-svg{width:100%;height:auto;overflow:visible}.visualization.diagram-mode .timing-diagram-svg{width:100%;height:100%;display:block}.path-diagram-container{background:var(--bg-secondary);border:1px solid var(--border);border-radius:6px;padding:4px;box-shadow:0 8px 24px #0000002e}.result-panel{margin-bottom:12px}.result-panel h2{color:var(--accent-blue);margin-bottom:10px;font-size:14px}.path-result{background:var(--bg-secondary);border:1px solid var(--border);border-radius:6px;margin-bottom:8px;padding:10px;box-shadow:inset 0 1px #ffffff08}.path-result.active{border-color:var(--accent-blue);box-shadow:0 0 8px #4fc3f733}.path-result.has-violation{border-color:var(--accent-red);box-shadow:0 0 12px #ef535033}.path-result h4{color:var(--accent-orange);text-transform:uppercase;margin-bottom:6px;font-size:11px}.slack-badge{border-radius:4px;align-items:center;gap:6px;margin-bottom:4px;padding:4px 8px;font-family:monospace;font-size:12px;display:flex}.slack-badge.ok{background:#66bb6a1f}.slack-badge.violation{background:#ef535026}.slack-label{color:var(--text-secondary);min-width:85px}.slack-value{font-weight:700}.slack-badge.ok .slack-value{color:var(--accent-green)}.slack-badge.violation .slack-value{color:var(--accent-red)}.ok-icon{color:var(--accent-green)}.violation-icon{color:var(--accent-red)}.timing-detail{color:var(--text-secondary);padding:4px 0;font-family:monospace;font-size:10px;line-height:1.6}.timing-row{cursor:default;border-radius:3px;align-items:center;gap:4px;padding:1px 3px;transition:background .1s;display:flex;position:relative}.timing-row:hover{color:var(--text-primary);background:#4fc3f712}.timing-value{color:var(--accent-blue)}.breakdown-hint{color:var(--text-secondary);opacity:.5;font-size:8px}.breakdown-tooltip{z-index:100;border:1px solid var(--border);pointer-events:none;background:#1a1a30;border-radius:5px;min-width:220px;padding:8px 10px;position:absolute;top:100%;left:0;box-shadow:0 4px 16px #00000080}.breakdown-row{color:var(--text-secondary);justify-content:space-between;gap:16px;font-family:monospace;font-size:10px;line-height:1.7;display:flex}.breakdown-total{color:var(--accent-blue);border-top:1px solid var(--border);justify-content:space-between;gap:16px;margin-top:4px;padding-top:4px;font-family:monospace;font-size:10px;font-weight:700;display:flex}.breakdown-value{text-align:right;white-space:nowrap}.breakdown-value.negative{color:var(--accent-red)}.breakdown-section-header{color:var(--accent-blue);letter-spacing:.03em;margin-bottom:2px;font-family:monospace;font-size:9px}.warning-msg{color:var(--accent-red);border-left:3px solid var(--accent-red);background:#ef53501a;border-radius:3px;margin-top:4px;padding:4px 6px;font-size:10px}.constraint-output h2{color:var(--accent-blue);margin-bottom:10px;font-size:14px}.constraint-note{background:var(--bg-secondary);border:1px solid var(--border);border-radius:6px;margin-bottom:8px;padding:10px}.constraint-note.compact{padding:6px}.constraint-note h3{color:var(--accent-orange);text-transform:uppercase;letter-spacing:.4px;margin-bottom:6px;font-size:10px}.constraint-line{color:var(--text-secondary);font-family:monospace;font-size:9px;line-height:1.45}.constraint-line.formula-title{color:var(--text-primary);margin-bottom:8px;font-size:10px}.constraint-block{background:#0a0c1973;border:1px solid #8888aa40;border-radius:6px;margin-bottom:8px;padding:8px}.constraint-block:last-child{margin-bottom:0}.constraint-block-title{color:var(--accent-blue);text-transform:uppercase;letter-spacing:.4px;margin-bottom:6px;font-size:10px}.modal-overlay{-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:1000;background:#050814b8;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.modal-content{background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;flex-direction:column;width:min(620px,100%);max-height:80vh;display:flex;overflow:hidden;box-shadow:0 20px 40px #00000073}.modal-header{border-bottom:1px solid var(--border);background:var(--bg-panel);justify-content:space-between;align-items:center;gap:10px;padding:10px 14px;display:flex}.modal-header h3{color:var(--accent-orange);text-transform:uppercase;letter-spacing:.4px;font-size:11px}.modal-close-btn{background:var(--bg-input);border:1px solid var(--border);color:var(--text-primary);cursor:pointer;border-radius:4px;padding:3px 10px;font-family:monospace;font-size:14px;line-height:1}.modal-close-btn:hover{background:var(--accent-blue);color:#000}.modal-body{padding:12px;overflow-y:auto}.modal-body .constraint-note{margin:0}.constraint-actions{gap:6px;margin-bottom:6px;display:flex}.constraint-actions button{background:var(--bg-input);border:1px solid var(--border);color:var(--text-primary);cursor:pointer;border-radius:4px;padding:5px 12px;font-family:monospace;font-size:11px;transition:all .15s;box-shadow:inset 0 1px #ffffff0a}.constraint-actions button:hover{background:var(--accent-blue);color:#000}.xdc-text{border:1px solid var(--border);color:var(--accent-green);white-space:pre;background:#0a0a16;border-radius:4px;max-height:300px;padding:10px;font-family:Consolas,Fira Code,monospace;font-size:10.5px;line-height:1.6;overflow:auto}.topology-selector{gap:0;margin-bottom:8px;display:flex}.topology-selector button{background:var(--bg-secondary);border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;flex:1;padding:6px 8px;font-family:monospace;font-size:10px;transition:all .15s}.topology-selector button:first-child{border-radius:4px 0 0 4px}.topology-selector button:last-child{border-radius:0 4px 4px 0}.topology-selector button.active{background:var(--accent-blue);color:#000;border-color:var(--accent-blue)}.rate-selector{gap:0;margin-bottom:8px;display:flex}.rate-selector button{background:var(--bg-secondary);border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;flex:1;padding:5px 8px;font-family:monospace;font-size:10px;transition:all .15s}.rate-selector button:first-child{border-radius:4px 0 0 4px}.rate-selector button:last-child{border-radius:0 4px 4px 0}.rate-selector button.active{background:var(--accent-orange);color:#000;border-color:var(--accent-orange)}.edge-selectors{align-items:center;gap:6px;margin-bottom:8px;display:flex}.edge-field{flex:1}.edge-field label{color:var(--text-secondary);margin-bottom:2px;font-size:10px;display:block}.edge-field select{background:var(--bg-input);border:1px solid var(--border);width:100%;color:var(--text-primary);border-radius:4px;padding:4px 6px;font-family:monospace;font-size:11px}.edge-arrow{color:var(--text-secondary);margin-top:14px;font-size:16px}.ddr-badge{background:var(--accent-orange);color:#000;vertical-align:middle;letter-spacing:.5px;border-radius:3px;margin-left:6px;padding:2px 6px;font-size:9px;font-weight:700;display:inline-block}.source-sync-section{border:1px dashed var(--accent-blue);background:#4fc3f70f;border-radius:6px;margin-top:8px;padding:8px}.source-sync-section h3{color:var(--accent-blue);margin-bottom:6px;font-size:11px}.param-hint{color:var(--text-secondary);margin-top:4px;font-size:9px;font-style:italic;line-height:1.4}.toggle-label{color:var(--text-primary);cursor:pointer;align-items:center;gap:6px;font-size:11px;display:flex}.toggle-label input[type=checkbox]{accent-color:var(--accent-blue)}.error-boundary{min-height:60vh;color:var(--text-primary);text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:16px;padding:40px;display:flex}.error-boundary h2{color:var(--accent-red);font-size:22px}.error-boundary .error-message{color:var(--text-secondary);background:var(--bg-secondary);word-break:break-word;border-radius:6px;max-width:600px;padding:12px 20px;font-family:monospace;font-size:13px}.error-boundary button{background:var(--accent-blue);color:var(--bg-primary);cursor:pointer;border:none;border-radius:6px;margin-top:8px;padding:8px 24px;font-weight:600}.validation-warnings{margin:8px 0}.validation-warning{color:var(--accent-orange);border-left:2px solid var(--accent-orange);background:#ff980014;border-radius:0 4px 4px 0;align-items:center;gap:6px;margin-bottom:4px;padding:4px 8px;font-size:10px;line-height:1.4;display:flex}