:root{
    --chrome:#171b21; --chrome2:#1f2530; --edge:#2c3542;
    --paper:#fbfaf6; --paper2:#f3f1e9; --ink:#1e2833; --ink2:#5a6572;
    --amber:#f2a90a; --amber-dk:#c98a05;
    --refusal:#c23b2e; --water:#2274a5;
    --good:#2e8b57; --mid:#e09310; --bad:#c23b2e;
    --mono:ui-monospace,'SF Mono','Cascadia Mono','Consolas',Menlo,monospace;
    --sans:-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html,body{height:100%;font-family:var(--sans);background:var(--chrome);color:#e8e6df;overflow:hidden}

  /* ---------- header ---------- */
  header{height:52px;display:flex;align-items:center;gap:14px;padding:0 16px;background:var(--chrome);border-bottom:1px solid var(--edge)}
  .brand{display:flex;align-items:baseline;gap:8px}
  .brand b{font-size:15px;letter-spacing:.14em;text-transform:uppercase}
  .brand b span{color:var(--amber)}
  .brand em{font-style:normal;font-size:10px;letter-spacing:.18em;color:#8a93a0;text-transform:uppercase}
  .proj{flex:1;min-width:0;display:flex;align-items:center;gap:10px;font-size:12.5px;color:#c8cdd5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .proj .pid{font-family:var(--mono);background:var(--chrome2);border:1px solid var(--edge);border-radius:3px;padding:2px 7px;color:var(--amber);font-size:11.5px}
  .phase{font-size:10px;letter-spacing:.14em;text-transform:uppercase;border:1px solid var(--amber-dk);color:var(--amber);border-radius:3px;padding:3px 8px}
  .menu-toggle{display:none;width:30px;height:30px;align-items:center;justify-content:center;background:var(--chrome2);border:1px solid var(--edge);border-radius:3px;color:#e8e6df;font-size:17px;cursor:pointer}
  .top-actions{display:flex;align-items:center;gap:2px}.top-actions a{width:30px;height:30px;display:flex;align-items:center;justify-content:center;color:#9aa3af;border:1px solid transparent;border-radius:3px}.top-actions a:hover{color:var(--amber);border-color:var(--edge)}.top-actions svg{width:15px}

  /* ---------- layout ---------- */
  #app{display:flex;height:calc(100% - 52px)}
  aside{width:308px;min-width:308px;background:var(--chrome);border-right:1px solid var(--edge);overflow-y:auto;padding:14px 12px 20px}
  #workspace{position:relative;flex:1;min-width:0;background:#0f1216;overflow:hidden}
  .viz-surface{position:absolute;inset:0;display:none;background:#0f1216}.viz-surface.active{display:block}#map{background:#0f1216}
  .view-toolbar{position:absolute;z-index:750;top:10px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:6px;padding:5px;background:#171b21ed;border:1px solid #394351;border-radius:4px;box-shadow:0 3px 12px #0006;color:#d6dae0}
  .view-segments{display:flex;border:1px solid #485363;border-radius:3px;overflow:hidden}.view-toolbar button{height:30px;display:flex;align-items:center;justify-content:center;gap:6px;padding:0 9px;border:0;background:transparent;color:#aeb6c1;font:700 9px var(--sans);letter-spacing:.08em;text-transform:uppercase;cursor:pointer}.view-segments button+button{border-left:1px solid #485363}.view-toolbar button.active,.view-toolbar button:hover{background:#f2a90a;color:#171b21}.view-toolbar svg{width:14px}.view-toolbar select{height:30px;max-width:150px;border:1px solid #485363;border-radius:3px;background:#202731;color:#d6dae0;padding:0 7px;font:10px var(--mono)}
  .surface-toggle[aria-pressed="true"]{background:#2274a5;color:#fff}.surface-legend{position:absolute;z-index:740;right:12px;bottom:26px;width:186px;padding:9px 10px;background:#171b21ed;border:1px solid #394351;border-radius:4px;font:9px var(--mono);color:#d6dae0}.surface-ramp{height:7px;margin:7px 0 4px;background:linear-gradient(90deg,#2e8b57,#f2d34f,#e09310,#c23b2e)}.surface-range{display:flex;justify-content:space-between}
  #cross-section{overflow:auto;padding:62px 18px 24px;background:#f4f2eb;color:#1e2833}#cross-section svg{display:block;min-width:860px;margin:auto;background:#fff;border:1px solid #c9c4b4}.section-empty,.scene-status{position:absolute;inset:0;display:grid;place-items:center;color:#8a93a0;font:11px var(--mono);letter-spacing:.06em;text-transform:uppercase}
  #scene3d canvas{display:block;width:100%;height:100%}.scene-key{position:absolute;left:14px;bottom:18px;padding:9px 10px;background:#171b21dd;border:1px solid #394351;border-radius:4px;color:#c8cdd5;font:9px var(--mono);line-height:1.7}.scene-key b{display:block;color:#f2a90a;text-transform:uppercase;letter-spacing:.1em}
  .loading-state{position:absolute;z-index:500;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;background:#0f1216;color:#c8cdd5;font-size:12px;letter-spacing:.08em;text-transform:uppercase}
  .loading-mark{width:22px;height:22px;border:2px solid #46505d;border-top-color:var(--amber);border-radius:50%;animation:spin .8s linear infinite}
  .loading-state.error{color:#f0eee7;text-transform:none;letter-spacing:0}
  .loading-state.error span{color:#9aa3af;font-family:var(--mono);font-size:11px}
  .loading-state.error button{background:var(--amber);color:#171b21;border:0;border-radius:3px;padding:7px 12px;font:700 10px var(--sans);letter-spacing:.08em;text-transform:uppercase;cursor:pointer}
  @keyframes spin{to{transform:rotate(360deg)}}

  .slabel{font-size:9.5px;letter-spacing:.18em;text-transform:uppercase;color:#7d8794;margin:16px 2px 7px}
  .slabel:first-child{margin-top:2px}

  .stats{display:grid;grid-template-columns:1fr 1fr;gap:6px}
  .stat{background:var(--chrome2);border:1px solid var(--edge);border-radius:4px;padding:8px 9px}
  .stat b{display:block;font-family:var(--mono);font-size:15px;color:#fff}
  .stat span{font-size:9.5px;letter-spacing:.06em;text-transform:uppercase;color:#7d8794}

  /* project groups */
  .pgroup{margin-bottom:12px;border:1px solid var(--edge);border-radius:6px;overflow:hidden}
  .empty-access{display:grid;gap:7px;margin:12px;padding:18px;border:1px solid var(--edge);background:#242c38;color:#89929e;font-size:10px;line-height:1.5}.empty-access b{color:#e8e6df;font-size:12px}.empty-access span{display:block}
  .pghead{display:flex;align-items:center;gap:8px;background:#242c38;padding:8px 10px;cursor:pointer}
  .pghead .pid2{font-family:var(--mono);font-weight:700;font-size:12px;color:var(--amber)}
  .pghead .pname{flex:1;min-width:0;font-size:10.5px;color:#b9c0c9;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .pghead .pcount{font-family:var(--mono);font-size:9.5px;color:#7d8794}
  .pgcmp{background:none;border:1px solid #4a5563;color:#c8cdd5;font-size:9px;letter-spacing:.08em;text-transform:uppercase;border-radius:3px;padding:3px 7px;cursor:pointer}
  .pgcmp:hover{border-color:var(--amber);color:var(--amber)}
  .pgbody{padding:7px 7px 3px;background:var(--chrome)}

  .bh-card{width:100%;text-align:left;background:var(--chrome2);border:1px solid var(--edge);border-radius:5px;padding:8px 9px;margin-bottom:6px;cursor:pointer;color:inherit;font:inherit;display:block;transition:border-color .12s}
  .bh-card:hover{border-color:#4a5563}
  .bh-card.active{border-color:var(--amber);box-shadow:0 0 0 1px var(--amber)}
  .bh-top{display:flex;align-items:center;gap:8px;margin-bottom:4px}
  .bh-dot{width:11px;height:11px;border-radius:50%;border:2px solid #fff3;flex:none}
  .bh-name{font-family:var(--mono);font-weight:700;font-size:12.5px;color:#fff}
  .bh-ground{margin-left:auto;font-size:8.5px;letter-spacing:.09em;text-transform:uppercase;color:#8a93a0;border:1px solid var(--edge);border-radius:3px;padding:2px 5px;white-space:nowrap}
  .bh-meta{font-family:var(--mono);font-size:10px;color:#9aa3af;display:flex;gap:9px;margin-bottom:6px;flex-wrap:wrap}
  .bh-bar{display:block;position:relative;height:8px;border-radius:2px;background:#0d1014;overflow:hidden}
  .bh-bar .soil{position:absolute;top:0;bottom:0;left:0;background:#8a7a54}
  .bh-bar .rock{position:absolute;top:0;bottom:0;background:repeating-linear-gradient(45deg,#5c6672 0 3px,#454e59 3px 6px)}
  .bh-bar .ref{position:absolute;top:-2px;bottom:-2px;width:2px;background:var(--refusal)}

  .mlegend{background:var(--chrome2);border:1px solid var(--edge);border-radius:5px;padding:9px 10px;font-size:11px;color:#b9c0c9}
  .mlegend div{display:flex;align-items:center;gap:8px;margin:4px 0}
  .mlegend i{width:10px;height:10px;border-radius:50%;flex:none}
  .foot{margin-top:14px;font-size:9.5px;color:#5f6975;line-height:1.5}
  .foot b{color:#8a93a0}

  /* ---------- markers ---------- */
  .peg{position:relative}
  .peg .c{width:24px;height:24px;border-radius:50%;border:2.5px solid #fff;box-shadow:0 1px 6px #0009;display:flex;align-items:center;justify-content:center}
  .peg .c::after{content:'';width:6px;height:6px;background:#fff;border-radius:50%}
  .peg .l{position:absolute;top:27px;left:50%;transform:translateX(-50%);font-family:var(--mono);font-size:9px;font-weight:700;background:#171b21e6;color:#fff;padding:1px 5px;border-radius:3px;border:1px solid var(--edge);white-space:nowrap}
  .peg .l em{font-style:normal;color:var(--amber)}
  .peg.sel .c{outline:3px solid var(--amber);outline-offset:1px}
  .leaflet-tooltip.geo-tip{background:var(--paper);color:var(--ink);border:1px solid #c9c4b4;border-radius:4px;font-family:var(--mono);font-size:11px;box-shadow:0 3px 10px #0006}

  /* ---------- detail panel ---------- */
  #panel{position:absolute;top:52px;right:0;bottom:0;width:568px;max-width:92vw;background:var(--paper);color:var(--ink);box-shadow:-8px 0 26px #0008;transform:translateX(105%);transition:transform .22s ease;z-index:1000;display:flex;flex-direction:column}
  #panel.open{transform:none}
  .p-head{position:relative;padding:14px 18px 12px;border-bottom:2px solid var(--ink);background:var(--paper)}
  .p-row1{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding-right:38px}
  .p-bh{font-family:var(--mono);font-size:19px;font-weight:800;letter-spacing:.01em}
  .p-bh em{font-style:normal;color:var(--amber-dk)}
  .chip{font-size:9px;letter-spacing:.12em;text-transform:uppercase;border:1px solid var(--ink2);border-radius:3px;padding:2.5px 7px;color:var(--ink2)}
  .p-close{position:absolute;z-index:2;top:13px;right:18px;background:var(--paper);border:1px solid #c9c4b4;border-radius:4px;width:28px;height:28px;cursor:pointer;font-size:14px;color:var(--ink2)}
  .p-close:hover{border-color:var(--ink);color:var(--ink)}
  .p-sub{font-size:11px;color:var(--ink2);margin-top:4px}
  .p-body{flex:1;overflow-y:auto;padding:14px 18px 26px}

  .meta{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:#d9d4c4;border:1px solid #d9d4c4;border-radius:4px;overflow:hidden;margin-bottom:14px}
  .meta div{background:var(--paper);padding:7px 10px}
  .meta div.w{grid-column:1/-1}
  .meta label{display:block;font-size:8.5px;letter-spacing:.14em;text-transform:uppercase;color:#8b8672;margin-bottom:2px}
  .meta b{font-family:var(--mono);font-size:11.5px;font-weight:600}
  .meta b .dim{color:#8b8672;font-weight:400}

  .chartwrap{background:#fff;border:1px solid #d9d4c4;border-radius:4px;padding:10px 6px 6px;overflow-x:auto}
  .charthead{display:flex;align-items:baseline;gap:6px 10px;flex-wrap:wrap;padding:0 10px 6px}
  .charthead b{font-size:12px;letter-spacing:.08em;text-transform:uppercase}
  .charthead span{font-size:10px;color:var(--ink2)}

  .cores{margin-top:14px}
  .cores h4,.tbl h4,.slegend h4{font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:#6f6a58;margin-bottom:7px}
  .corechips{display:flex;flex-wrap:wrap;gap:6px}
  .corechip{font-family:var(--mono);font-size:10.5px;background:#fff;border:1px solid #d9d4c4;border-radius:4px;padding:5px 8px;display:flex;align-items:center;gap:7px}
  .rqd{font-weight:700;padding:1px 5px;border-radius:3px;color:#fff}
  .test-records{margin-top:14px}.test-records h4{font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:#6f6a58;margin-bottom:7px}.test-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px}.test-record{background:#fff;border:1px solid #d9d4c4;border-radius:4px;padding:7px 9px}.test-record span{display:block;color:#8b8672;font-size:8px;letter-spacing:.1em;text-transform:uppercase}.test-record b{display:block;margin:3px 0;font-size:11px}.test-record code{font-family:var(--mono);font-size:10px;color:#4f5a65}

  /* view tabs */
  .vtabs{display:flex;gap:0;margin-bottom:12px;border:1px solid var(--ink);border-radius:4px;overflow:hidden;width:max-content}
  .vtab{background:var(--paper);border:none;padding:8px 16px;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;cursor:pointer;color:var(--ink2)}
  .vtab+.vtab{border-left:1px solid var(--ink)}
  .vtab.active{background:var(--ink);color:var(--paper)}

  /* deep boring log table */
  .dbl{background:#fff;border:1px solid #d9d4c4;border-radius:4px;overflow:hidden}
  .dbl-title{display:flex;align-items:baseline;gap:10px;padding:10px 12px 8px;border-bottom:2px solid var(--ink);flex-wrap:wrap}
  .dbl-title b{font-size:12px;letter-spacing:.12em;text-transform:uppercase}
  .dbl-title span{font-size:10px;color:var(--ink2)}
  .dbl table{width:100%;border-collapse:collapse;font-family:var(--mono);font-size:10.5px}
  .dbl th{font-size:8px;letter-spacing:.1em;text-transform:uppercase;color:#6f6a58;border-bottom:1.5px solid var(--ink);padding:6px 5px;text-align:center;background:var(--paper2)}
  .dbl th.l{text-align:left}
  .dbl td{border-bottom:1px solid #eceadf;padding:4px 5px;text-align:center;color:#3d4650}
  .dbl td.l{text-align:left}
  .dbl td.blow{width:26px;color:#1e2833}
  .dbl td.dim{color:#b3ae9c}
  .dbl tr.ev-D td.nval{font-weight:700;color:#1e2833}
  .dbl tr.ref td.nval,.dbl tr.ref td.rk{color:var(--refusal);font-weight:700}
  .dbl tr.stratum td{background:var(--paper2);border-top:1.5px solid var(--ink);border-bottom:1px solid #d9d4c4;padding:6px 8px;text-align:left}
  .dbl .st-line{display:flex;align-items:center;gap:9px}
  .dbl .st-line svg{flex:none;border:1px solid #9a9482}
  .dbl .st-depth{font-weight:700;white-space:nowrap}
  .dbl .st-desc{font-family:var(--sans);font-size:11px;color:#1e2833}
  .dbl .st-chip{margin-left:auto;font-family:var(--sans);font-size:8.5px;letter-spacing:.1em;text-transform:uppercase;border:1px solid #9a9482;border-radius:3px;padding:2px 6px;color:#6f6a58;white-space:nowrap}
  .dbl-foot{padding:10px 12px;border-top:2px solid var(--ink);font-family:var(--mono);font-size:10.5px;line-height:1.7;background:var(--paper2)}
  .dbl-foot b{font-weight:700}
  .dbl-notes{padding:9px 12px;font-size:9.5px;color:#8b8672;line-height:1.6;border-top:1px dashed #c9c4b4}
  .dbl-notes b{color:#6f6a58}

  .slegend{margin-top:16px}
  .slegend .grid{display:grid;grid-template-columns:1fr 1fr;gap:5px}
  .slegend .it{display:flex;align-items:center;gap:8px;font-size:10.5px;background:#fff;border:1px solid #eceadf;border-radius:3px;padding:4px 7px}
  .slegend svg{flex:none;border:1px solid #c9c4b4}

  /* compare legend */
  .cmp-key{display:flex;flex-wrap:wrap;gap:12px;padding:2px 10px 8px;font-family:var(--mono);font-size:11px}
  .cmp-key span{display:flex;align-items:center;gap:6px}
  .cmp-key i{width:16px;height:3px;border-radius:2px}

  /* tooltip */
  #tip{position:fixed;z-index:3000;pointer-events:none;background:#14181e;color:#f0eee7;border:1px solid #3a4453;border-radius:5px;padding:8px 10px;font-size:11px;line-height:1.5;max-width:290px;box-shadow:0 6px 18px #0009;display:none}
  #tip .t-hd{font-family:var(--mono);font-weight:700;color:var(--amber);margin-bottom:2px}
  #tip .t-mono{font-family:var(--mono);color:#c8cdd5}

  svg text{font-family:var(--mono)}
  .hoverable{cursor:pointer}
  @media (max-width:960px){
    header{gap:8px;padding:0 10px}.brand em,.proj #hdrtitle,.phase{display:none}.menu-toggle{display:flex;flex:none}.top-actions{margin-left:auto}
    aside{position:absolute;z-index:700;top:52px;left:0;bottom:0;width:292px;min-width:292px;transform:translateX(-100%);transition:transform .2s ease;box-shadow:8px 0 18px #0008}
    aside.open{transform:none}
    #panel{width:100vw;max-width:100vw}.p-head{padding-left:10px;padding-right:10px;overflow:hidden}.p-close{right:10px}.p-row1{padding-right:42px}.p-sub{padding-right:36px;overflow-wrap:anywhere}.p-body{padding-left:10px;padding-right:10px}.meta{grid-template-columns:1fr}.meta div.w{grid-column:auto}.meta b{overflow-wrap:anywhere}.view-toolbar{top:8px}.view-toolbar select{display:none}.view-toolbar button span{display:none}.view-toolbar button{width:31px;padding:0}.test-grid{grid-template-columns:1fr}
  }