*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #0f1117;--surface: #1a1d27;--border: #2e3148;--accent: #4f6ef7;--accent-hover: #6b84fa;--text: #e2e4f0;--text-muted: #7b82a8;--success: #3ecf8e;--error: #f76f72;--warning: #f7c94f;--radius: 10px}body{font-family:Inter,Segoe UI,system-ui,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}.layout{display:flex;flex-direction:column;min-height:100vh}.navbar{display:flex;align-items:center;gap:2rem;padding:0 2rem;height:56px;background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}.navbar .brand{font-weight:700;font-size:1.1rem;color:var(--accent);text-decoration:none}.navbar a{color:var(--text-muted);text-decoration:none;font-size:.9rem;transition:color .15s}.navbar a:hover,.navbar a.active{color:var(--text)}main{flex:1}.page{max-width:860px;margin:2.5rem auto;padding:0 1.5rem}.page-full{height:calc(100vh - 56px);display:flex;flex-direction:column}.page-title{font-size:1.5rem;font-weight:700;margin-bottom:.5rem}.page-desc{color:var(--text-muted);margin-bottom:2rem;font-size:.93rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem}.dropzone{border:2px dashed var(--border);border-radius:var(--radius);padding:3rem 2rem;text-align:center;cursor:pointer;transition:border-color .2s,background .2s}.dropzone:hover,.dropzone.over{border-color:var(--accent);background:#4f6ef70f}.dropzone .icon{font-size:2.5rem;margin-bottom:.75rem}.dropzone p{color:var(--text-muted);font-size:.93rem}.dropzone p strong{color:var(--text)}.btn{display:inline-flex;align-items:center;gap:.4rem;padding:.55rem 1.2rem;border-radius:7px;border:none;cursor:pointer;font-size:.9rem;font-weight:600;transition:background .15s,opacity .15s}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--text-muted)}.btn-ghost:hover{color:var(--text);border-color:var(--text-muted)}.alert{border-radius:var(--radius);padding:.85rem 1.1rem;font-size:.9rem;margin-top:1rem}.alert-success{background:#3ecf8e1f;color:var(--success);border:1px solid rgba(62,207,142,.3)}.alert-error{background:#f76f721f;color:var(--error);border:1px solid rgba(247,111,114,.3)}.search-bar{display:flex;gap:.6rem;padding:1rem 1.5rem;background:var(--surface);border-bottom:1px solid var(--border);position:relative}.search-bar input{flex:1;background:var(--bg);border:1px solid var(--border);border-radius:7px;color:var(--text);padding:.55rem .9rem;font-size:.93rem;outline:none;transition:border-color .15s}.search-bar input:focus{border-color:var(--accent)}.autocomplete{position:absolute;top:calc(100% - .5rem);left:1.5rem;right:5rem;background:var(--surface);border:1px solid var(--border);border-radius:7px;z-index:200;overflow:hidden;box-shadow:0 8px 24px #0006}.autocomplete li{list-style:none;padding:.55rem 1rem;cursor:pointer;font-size:.92rem;color:var(--text-muted);transition:background .1s}.autocomplete li:hover{background:var(--border);color:var(--text)}.graph-panel{flex:1;position:relative;overflow:hidden}.graph-legend{position:absolute;top:1rem;right:1rem;background:#1a1d27e6;border:1px solid var(--border);border-radius:var(--radius);padding:.9rem 1.1rem;z-index:50;font-size:.82rem;min-width:180px}.graph-legend h4{margin-bottom:.6rem;font-size:.85rem;color:var(--text-muted)}.legend-item{display:flex;align-items:center;gap:.5rem;margin-bottom:.3rem}.legend-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}.node-detail{position:absolute;bottom:1rem;left:1rem;background:#1a1d27f2;border:1px solid var(--border);border-radius:var(--radius);padding:1rem 1.2rem;z-index:50;min-width:260px;max-width:360px;font-size:.85rem}.node-detail h4{font-size:1rem;margin-bottom:.5rem;word-break:break-all}.node-detail .nd-row{display:flex;gap:.4rem;margin-bottom:.2rem}.nd-label{color:var(--text-muted);min-width:70px}.stats-row{display:flex;gap:1rem;margin-top:1.5rem}.stat-card{flex:1;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;text-align:center}.stat-number{font-size:1.6rem;font-weight:700;color:var(--accent)}.stat-label{font-size:.8rem;color:var(--text-muted);margin-top:.2rem}.spinner{display:inline-block;width:18px;height:18px;border:2px solid rgba(255,255,255,.2);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.upload-actions{display:flex;gap:.75rem;margin-top:1.25rem;align-items:center}.file-info{font-size:.87rem;color:var(--text-muted)}.file-info strong{color:var(--text)}