:root{--primary-color: #2563eb;--primary-bg: #eff6ff;--text-main: #1f2937;--text-secondary: #6b7280;--border-color: #e5e7eb;--bg-color: #f3f4f6;--card-bg: #ffffff}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,sans-serif;background-color:var(--bg-color);color:var(--text-main)}.app-container{display:flex;flex-direction:column;height:100vh}.app-header{background:#fff;padding:1rem 2rem;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center;box-shadow:0 1px 2px #0000000d}.app-header .logo{display:flex;align-items:center;gap:.75rem}.app-header .logo h1{font-size:1.25rem;margin:0;color:var(--text-main)}.app-header .logo .icon{color:var(--primary-color)}.app-header p{font-size:.875rem;color:var(--text-secondary);margin:0}.app-main{flex:1;display:flex;overflow:hidden;padding:1.5rem;gap:1.5rem}.sidebar{width:350px;display:flex;flex-direction:column;gap:1.5rem}.content{flex:1;display:flex;flex-direction:column}.card{background:var(--card-bg);border-radius:.75rem;border:1px solid var(--border-color);box-shadow:0 1px 3px #0000001a;padding:1.25rem;display:flex;flex-direction:column}.list-card{flex:1;overflow:hidden;padding:0}.card h2{font-size:1rem;margin:0 0 1rem;color:var(--text-main)}.file-upload-container{display:flex;flex-direction:column;gap:1rem}input[type=file]{display:none}.file-upload-area{border:2px dashed var(--border-color);padding:1.25rem;text-align:center;border-radius:.5rem;cursor:pointer;transition:all .2s;background:#f9fafb;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.375rem}.file-upload-area:hover{background:var(--primary-bg);border-color:var(--primary-color)}.file-upload-area .icon{color:#3b82f6;margin-bottom:.5rem}.file-upload-area .text{font-weight:500;color:#374151}.file-upload-area .subtext{font-size:.75rem;color:#9ca3af}.divider{position:relative;text-align:center;margin:.5rem 0}.divider:before{content:"";position:absolute;top:50%;left:0;right:0;border-top:1px solid var(--border-color);z-index:0}.divider span{position:relative;z-index:1;background:#fff;padding:0 .5rem;color:#6b7280;font-size:.8rem}.paste-area .label{font-size:.75rem;color:#6b7280;display:flex;align-items:center;gap:.25rem;margin-bottom:.5rem}.paste-area textarea{width:100%;height:120px;border:1px solid var(--border-color);border-radius:.375rem;padding:.5rem;font-family:monospace;font-size:.75rem;resize:none;background:#f9fafb}.paste-area textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 2px var(--primary-bg)}.interface-list-container{flex:1;display:flex;flex-direction:column;height:100%;background:#fff;border-radius:.75rem}.list-header{padding:.75rem 1rem;border-bottom:1px solid var(--border-color);background:#f9fafb;display:flex;justify-content:space-between;align-items:center}.list-header .title{font-size:.9rem;margin:0;display:flex;align-items:center;gap:.5rem;font-weight:600;color:#374151}.list-header .actions{font-size:.75rem;display:flex;gap:.5rem;align-items:center}.btn-link{background:none;border:none;padding:0;cursor:pointer;color:var(--primary-color);font-weight:500}.btn-link:hover{text-decoration:underline}.btn-link.text-secondary{color:#6b7280}.sep{color:#d1d5db}.list-content{flex:1;overflow-y:auto;padding:.5rem}.no-data{color:#9ca3af;text-align:center;padding:2rem;font-size:.875rem}.int-item{display:flex;align-items:flex-start;gap:.75rem;padding:.75rem;margin-bottom:.25rem;border:1px solid transparent;border-radius:.375rem;cursor:pointer;transition:background .1s}.int-item:hover{background:var(--bg-color)}.int-item.selected{background:var(--primary-bg);border-color:#bfdbfe}.int-item .checkbox{color:#d1d5db;margin-top:.125rem}.int-item.selected .checkbox{color:var(--primary-color)}.int-item .info{flex:1;overflow:hidden}.int-item .name{font-weight:500;font-size:.875rem;color:#1f2937}.int-item .desc{font-size:.75rem;color:#6b7280;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.int-item .tags{display:flex;flex-wrap:wrap;gap:.25rem;margin-top:.25rem}.tag{font-size:.65rem;padding:.125rem .375rem;border-radius:.25rem;font-weight:500}.tag.ip{background:#dcfce7;color:#15803d}.tag.svc{background:#f3e8ff;color:#7e22ce}.diagram-viewer{flex:1;display:flex;flex-direction:column;height:100%;background:#fff;border-radius:.75rem;border:1px solid var(--border-color);box-shadow:0 4px 6px #0000000d;overflow:hidden;position:relative}.toolbar{position:absolute;top:1rem;right:1rem;display:flex;gap:.5rem;z-index:10}.toolbar button{background:#fff;border:1px solid var(--border-color);border-radius:.375rem;padding:.375rem;cursor:pointer;color:#4b5563;box-shadow:0 1px 2px #0000000d;transition:all .2s;display:flex;align-items:center;justify-content:center}.toolbar button:hover{background:#f9fafb;border-color:#d1d5db}.toolbar button.primary{color:var(--primary-color)}.diagram-canvas{flex:1;display:flex;align-items:center;justify-content:center;overflow:auto;background:#f8fafc;padding:2rem}.empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--text-secondary);background:#fff;border-radius:.75rem;border:1px dashed var(--border-color)}