:root{
  --bg:#f6f7f9; --panel:#fff; --ink:#1c2230; --muted:#67708a;
  --line:#e3e7ee; --accent:#2f6fed; --accent-d:#1f4fb0;
  --seq:#2f6fed; --prot:#7c4dd6; --ctx:#1a9e6b; --unres:#8a93a6; --art:#d3473f;
}
*{box-sizing:border-box}
body{margin:0;font:14px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--bg)}
header{display:flex;align-items:center;justify-content:space-between;
  padding:14px 22px;background:var(--panel);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:5}
.brand h1{margin:0;font-size:18px;letter-spacing:.2px}
.brand .sub{color:var(--muted);font-size:12.5px}
.count{color:var(--muted);font-size:13px}

.viewswitch{display:flex;gap:0;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.vbtn{padding:7px 16px;border:none;background:#fff;cursor:pointer;font-size:13px;
  color:var(--muted);font-weight:600}
.vbtn.active{background:var(--accent);color:#fff}

/* network view */
#netview{position:relative;height:calc(100vh - 57px);overflow:hidden;background:#0b1020}
.netbar{position:absolute;top:0;left:0;right:0;z-index:3;display:flex;align-items:center;
  gap:16px;flex-wrap:wrap;padding:10px 16px;background:rgba(11,16,32,.82);
  backdrop-filter:blur(6px);border-bottom:1px solid #1e2742;color:#cdd6ea}
.netbar .nb{display:flex;align-items:center;gap:6px;font-size:12px;color:#9fb0d0}
.netbar select,.netbar input{padding:6px 9px;border:1px solid #2a3658;border-radius:7px;
  background:#141d33;color:#e7ecf7;font-size:13px}
.nbtn{width:auto;background:#141d33;color:#cdd6ea;border-color:#2a3658}
.nbtn:hover{border-color:var(--accent);color:#fff}
.netlegend{display:flex;align-items:center;gap:12px;font-size:11.5px;color:#9fb0d0}
.netlegend .lt{margin-left:-6px}
.nethint{font-size:11.5px;color:#7f8db0;flex:1;min-width:160px}
.ddot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:6px;
  vertical-align:middle}
#graph{position:absolute;inset:0}

.netprompt{position:absolute;inset:0;z-index:2;display:flex;align-items:center;
  justify-content:center;pointer-events:none}
.netprompt[hidden]{display:none}
.np-card{max-width:420px;text-align:center;color:#c4cfe6;background:rgba(20,29,51,.7);
  border:1px solid #2a3658;border-radius:14px;padding:26px 30px}
.np-title{font-size:18px;font-weight:700;color:#eaf0fb;margin-bottom:8px}
.np-card p{margin:6px 0;font-size:13.5px;line-height:1.55}
.np-sub{color:#8593b5;font-size:12px}

.netinfo{position:absolute;top:60px;right:14px;width:300px;max-height:calc(100% - 80px);
  overflow:auto;z-index:3;background:rgba(17,24,44,.95);border:1px solid #2a3658;
  border-radius:12px;color:#e7ecf7;box-shadow:0 16px 40px rgba(0,0,0,.45)}
.ni-head{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;
  border-bottom:1px solid #2a3658;font-size:15px}
.ni-head .close{background:#222c48;color:#cdd6ea}
.ni-sec{padding:10px 14px;border-bottom:1px solid #1c2747}
.ni-sec h4{margin:0 0 8px;font-size:12px;text-transform:uppercase;letter-spacing:.4px;
  color:#9fb0d0;font-weight:700}
.ncount{background:#2a3658;border-radius:999px;padding:1px 7px;font-size:11px;margin-left:4px}
.nlist{list-style:none;margin:0;padding:0;max-height:240px;overflow:auto}
.nlist li{display:flex;align-items:center;gap:6px;padding:5px 6px;border-radius:6px;
  cursor:pointer;font-size:13px}
.nlist li:hover{background:#222c48}
.nlist .ntf{font-weight:600;flex:1}
.nlist .ncell{color:#8a96b6;font-size:11px}
.nempty{color:#7f8db0;font-size:12px;margin:2px 0}
.ni-tip{color:#7f8db0;font-size:11px;padding:8px 14px;margin:0}

.layout{display:flex;align-items:flex-start;gap:0}
.layout[hidden]{display:none}
.filters{width:280px;flex:none;padding:18px;background:var(--panel);
  border-right:1px solid var(--line);position:sticky;top:57px;
  height:calc(100vh - 57px);overflow:auto}
.fgroup{margin-bottom:16px}
.flabel{display:block;font-size:12px;font-weight:600;color:var(--muted);
  text-transform:uppercase;letter-spacing:.4px;margin-bottom:6px}
.filters input[type=search],.filters select{width:100%;padding:8px 10px;
  border:1px solid var(--line);border-radius:7px;background:#fff;font-size:13.5px;color:var(--ink)}
.filters input[type=range]{width:100%}
.checks label{display:block;margin:4px 0;font-size:13px;color:var(--ink)}
.reset{width:100%;padding:8px;border:1px solid var(--line);background:#fff;
  border-radius:7px;cursor:pointer;color:var(--muted);font-size:13px}
.reset:hover{border-color:var(--accent);color:var(--accent)}

.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{padding:4px 9px;border-radius:999px;border:1.5px solid var(--line);
  cursor:pointer;font-size:12px;font-weight:600;user-select:none;background:#fff;color:var(--muted)}
.chip.on{color:#fff}
.chip[data-v=SEQUENCE].on{background:var(--seq);border-color:var(--seq)}
.chip[data-v=PROTEIN].on{background:var(--prot);border-color:var(--prot)}
.chip[data-v=CONTEXT].on{background:var(--ctx);border-color:var(--ctx)}
.chip[data-v=UNRESOLVED].on{background:var(--unres);border-color:var(--unres)}
.chip[data-v=ARTIFACT].on{background:var(--art);border-color:var(--art)}

.results{flex:1;padding:16px 22px;min-width:0}
.rcount{color:var(--muted);font-size:13px;margin-bottom:8px}
.tablewrap{background:var(--panel);border:1px solid var(--line);border-radius:10px;overflow:hidden}
table{width:100%;border-collapse:collapse;font-size:13px}
thead th{position:sticky;top:0;background:#fafbfc;text-align:left;padding:10px 12px;
  border-bottom:1px solid var(--line);font-size:11.5px;text-transform:uppercase;
  letter-spacing:.4px;color:var(--muted)}
tbody td{padding:9px 12px;border-bottom:1px solid #f0f2f6;vertical-align:middle}
tbody tr{cursor:pointer}
tbody tr:hover{background:#f4f8ff}
.pair{font-weight:600}
.pair .arrow{color:var(--muted);font-weight:400}
.motif{font-style:italic}
.motif sub{font-style:normal;font-weight:600}
.muted{color:var(--muted)}
.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;
  font-weight:700;color:#fff;letter-spacing:.3px}
.badge.SEQUENCE{background:var(--seq)} .badge.PROTEIN{background:var(--prot)}
.badge.CONTEXT{background:var(--ctx)} .badge.UNRESOLVED{background:var(--unres)}
.badge.ARTIFACT{background:var(--art)} .badge.none{background:#cfd5e0}
.tick{color:var(--ctx);font-weight:700}.cross{color:#c3c9d4}

/* modal */
.overlay{position:fixed;inset:0;background:rgba(20,26,38,.5);display:flex;
  align-items:flex-start;justify-content:center;padding:40px 16px;z-index:20;overflow:auto}
.overlay[hidden]{display:none}
.modal{background:#fff;border-radius:12px;width:min(900px,100%);
  box-shadow:0 24px 60px rgba(0,0,0,.3);display:flex;flex-direction:column;max-height:calc(100vh - 80px)}
.modal-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;
  padding:16px 20px;border-bottom:1px solid var(--line)}
.modal-head h2{margin:0;font-size:17px}
.m-meta{color:var(--muted);font-size:12.5px;margin-top:4px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.m-actions{display:flex;gap:6px;align-items:center;flex:none}
.tab{padding:6px 12px;border:1px solid var(--line);background:#fff;border-radius:7px;
  cursor:pointer;font-size:13px;color:var(--muted)}
.tab.active{background:var(--accent);border-color:var(--accent);color:#fff}
.tab:disabled{opacity:.4;cursor:not-allowed}
.close{border:none;background:#f0f2f6;border-radius:7px;width:30px;height:30px;
  cursor:pointer;font-size:14px;color:var(--muted)}
.close:hover{background:#e2e6ee}
.modal-body{padding:20px 26px;overflow:auto}

/* markdown */
.markdown{color:#222a3a;font-size:14.5px;line-height:1.65}
.markdown h1{font-size:22px;margin:.2em 0 .5em}
.markdown h2{font-size:18px;margin:1.2em 0 .4em;padding-bottom:.2em;border-bottom:1px solid var(--line)}
.markdown h3{font-size:15.5px;margin:1em 0 .3em}
.markdown table{border:1px solid var(--line);margin:1em 0;font-size:13px}
.markdown th,.markdown td{border:1px solid var(--line);padding:6px 10px;text-align:left}
.markdown th{background:#fafbfc}
.markdown code{background:#f0f2f6;padding:1px 5px;border-radius:4px;font-size:12.5px}
.markdown pre{background:#f6f8fa;padding:12px;border-radius:8px;overflow:auto}
.markdown pre code{background:none;padding:0}
.markdown blockquote{border-left:3px solid var(--line);margin:.8em 0;padding:.2em 1em;color:var(--muted)}
.loading{color:var(--muted);padding:30px;text-align:center}