:root{
  --bg:#f1f5f9; --panel:#ffffff; --ink:#0f172a; --muted:#64748b; --line:#e2e8f0;
  --brand:#1d4ed8; --brand-2:#3b82f6; --brand-soft:#dbeafe; --accent:#f59e0b; --danger:#dc2626;
  --sb-w:372px; --top-h:56px; --radius:10px;
  --shadow:0 1px 2px rgba(15,23,42,.08),0 4px 14px rgba(15,23,42,.10);
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;font-size:14px;color:var(--ink);background:var(--bg);display:flex;flex-direction:column;overflow:hidden}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer}
[hidden]{display:none!important}

/* ---------- Top bar ---------- */
.topbar{height:var(--top-h);flex:none;background:linear-gradient(90deg,#1e3a8a,#1d4ed8);color:#fff;display:flex;align-items:center;gap:14px;padding:0 14px;box-shadow:0 2px 8px rgba(0,0,0,.18);position:relative;z-index:50}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand svg{flex:none}
.brand b{font-size:16px;letter-spacing:.2px;display:block;line-height:1.1}
.brand small{opacity:.8;font-size:11.5px;white-space:nowrap}
.icon-btn{border:0;background:rgba(255,255,255,.12);color:#fff;width:36px;height:36px;border-radius:8px;display:inline-grid;place-items:center;transition:.15s}
.icon-btn:hover{background:rgba(255,255,255,.24)}
.icon-btn svg{width:19px;height:19px}
.search{position:relative;flex:1;max-width:520px;margin:0 auto}
.search input{width:100%;height:38px;border-radius:19px;border:0;padding:0 16px 0 40px;background:rgba(255,255,255,.95);color:var(--ink);outline:none;box-shadow:inset 0 0 0 1px rgba(255,255,255,.4)}
.search input:focus{box-shadow:0 0 0 3px rgba(59,130,246,.5)}
.search>svg{position:absolute;left:13px;top:10px;width:18px;height:18px;color:var(--muted)}
.qres{position:absolute;top:44px;left:0;right:0;background:#fff;color:var(--ink);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;display:none;max-height:360px;overflow-y:auto}
.qres.open{display:block}
.qres button{display:flex;width:100%;text-align:left;gap:10px;align-items:center;padding:9px 14px;border:0;background:#fff;border-bottom:1px solid var(--line)}
.qres button:hover,.qres button.act{background:var(--brand-soft)}
.qres small{color:var(--muted);margin-left:auto;white-space:nowrap}
.top-actions{display:flex;gap:8px}

/* ---------- Layout ---------- */
.app{flex:1;display:flex;min-height:0;position:relative}
#sidebar{width:var(--sb-w);flex:none;background:var(--panel);border-right:1px solid var(--line);overflow-y:auto;transition:margin .25s ease,transform .25s ease;z-index:20}
body.sb-closed #sidebar{margin-left:calc(var(--sb-w) * -1)}
.mapwrap{flex:1;position:relative;min-width:0;background:#cbd5e1}
#map{position:absolute;inset:0;z-index:0}
#map.leaflet-container{font-family:inherit;background:#cbd5e1}
#map.drawing,#map.drawing .leaflet-interactive{cursor:crosshair!important}
.leaflet-bottom{margin-bottom:32px}
.leaflet-popup-content-wrapper{border-radius:10px}
.leaflet-popup-content{margin:12px 14px}
.vtx{background:#fff;border:2px solid #f59e0b;border-radius:50%;box-shadow:0 0 0 1px rgba(0,0,0,.3);cursor:move}
.vtx.mid{background:#f59e0b;border-color:#fff;opacity:.6;cursor:copy}

/* ---------- Sidebar sections ---------- */
details.sec{border-bottom:1px solid var(--line)}
details.sec>summary{list-style:none;cursor:pointer;padding:13px 16px;font-weight:650;display:flex;align-items:center;gap:9px;user-select:none}
details.sec>summary::-webkit-details-marker{display:none}
details.sec>summary .ic{width:26px;height:26px;border-radius:7px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center}
details.sec>summary .ic svg{width:15px;height:15px}
details.sec>summary::after{content:"";margin-left:auto;width:8px;height:8px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(45deg);transition:.2s}
details.sec[open]>summary::after{transform:rotate(-135deg)}
.sec-body{padding:2px 16px 16px}
label.f{display:block;font-size:12px;font-weight:600;color:var(--muted);margin:10px 0 5px;text-transform:uppercase;letter-spacing:.3px}
select,.inp{width:100%;height:36px;border:1px solid #cbd5e1;border-radius:8px;padding:0 10px;background:#fff;outline:none}
.inp:disabled,select:disabled{background:#f1f5f9;color:#94a3b8;cursor:not-allowed}
select:focus,.inp:focus{border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(59,130,246,.18)}
.combo{position:relative}
.combo .inp{padding-right:36px}
.combo-btn{position:absolute;right:1px;top:1px;bottom:1px;width:34px;border:0;background:transparent;color:var(--muted);border-radius:0 7px 7px 0;display:grid;place-items:center}
.combo-btn:hover:not(:disabled){color:var(--brand)}
.combo-btn:disabled{cursor:not-allowed;opacity:.5}
.combo-list{position:absolute;left:0;right:0;top:40px;max-height:290px;overflow-y:auto;background:#fff;border:1px solid #cbd5e1;border-radius:8px;box-shadow:var(--shadow);z-index:40}
.combo-it{padding:8px 11px;cursor:pointer;border-bottom:1px solid #f1f5f9}
.combo-it:last-child{border-bottom:0}
.combo-it:hover,.combo-it.act{background:var(--brand-soft)}
.combo-it.sel{font-weight:650;color:var(--brand)}
.combo-it small{color:var(--muted);font-weight:400}
.combo-empty{padding:10px 12px;color:var(--muted)}
.row{display:flex;gap:8px;align-items:center}
.row>*{flex:1}
.btn{height:34px;border:1px solid #cbd5e1;background:#fff;border-radius:8px;padding:0 12px;font-weight:550;display:inline-flex;align-items:center;justify-content:center;gap:6px;transition:.15s;white-space:nowrap}
.btn:hover{background:#f8fafc;border-color:#94a3b8}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.primary:hover{background:#1e40af}
.btn.danger{color:var(--danger)}
.btn.sm{height:28px;padding:0 9px;font-size:12.5px}
.btn svg{width:15px;height:15px}
.muted{color:var(--muted)}
.help{font-size:12.5px;color:var(--muted);line-height:1.5;margin:8px 0 0}

.layer-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;margin-top:8px}
.layer-item .sw{width:14px;height:14px;border-radius:50%;border:2px solid #fff;box-shadow:0 0 0 1px rgba(0,0,0,.25)}
.layer-item .nm{font-weight:600;line-height:1.2}
.layer-item .nm small{display:block;font-weight:400;color:var(--muted);font-size:12px}
.layer-item .cnt{margin-left:auto;background:var(--brand-soft);color:var(--brand);font-weight:700;padding:2px 9px;border-radius:12px;font-size:12.5px}
input[type=checkbox]{accent-color:var(--brand);width:17px;height:17px}
input[type=range]{width:100%;accent-color:var(--brand)}
.sw-row{display:flex;align-items:center;gap:10px;padding:7px 0}
.sw-row span{flex:1}
.sl-lbl{display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}
.sl-lbl b{color:var(--ink)}
input[type=color]{width:38px;height:28px;border:1px solid #cbd5e1;border-radius:6px;padding:1px;background:#fff}

.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px}
.stat{border:1px solid var(--line);border-radius:var(--radius);padding:10px 12px;background:#fff}
.stat span{display:block;font-size:11.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.3px;font-weight:600}
.stat b{display:block;font-size:20px;margin-top:2px;line-height:1.2}
.stat small{color:var(--muted)}
.stat.big{grid-column:1/-1;background:linear-gradient(135deg,#eff6ff,#dbeafe);border-color:#93c5fd}
.stat.big b{font-size:30px;color:var(--brand)}
.area-title{font-weight:700;font-size:15px}
.tbl{width:100%;border-collapse:collapse;margin-top:12px;font-size:13px}
.tbl th{text-align:left;font-size:11.5px;text-transform:uppercase;color:var(--muted);padding:6px 6px;border-bottom:1px solid var(--line);position:sticky;top:0;background:#fff}
.tbl td{padding:6px;border-bottom:1px solid #f1f5f9}
.tbl tr.rw{cursor:pointer}
.tbl tr.rw:hover{background:var(--brand-soft)}
.tbl .num{text-align:right;font-variant-numeric:tabular-nums}
.tbl-wrap{max-height:230px;overflow:auto;border:1px solid var(--line);border-radius:8px;margin-top:12px}
.tbl-wrap .tbl{margin:0}
.empty{padding:16px;border:1px dashed #cbd5e1;border-radius:var(--radius);color:var(--muted);text-align:center;line-height:1.5;margin-top:8px}
.empty.small{padding:10px;font-size:13px}

.rcard{border:1px solid var(--line);border-left:5px solid var(--c,#f59e0b);border-radius:var(--radius);padding:10px 12px;margin-top:10px;background:#fff}
.rcard header{display:flex;align-items:center;gap:8px}
.rname{border:0;background:transparent;font-weight:650;font-size:14px;flex:1;min-width:0;outline:none;border-bottom:1px dashed transparent}
.rname:focus{border-bottom-color:var(--brand-2)}
.rcard dl{display:grid;grid-template-columns:auto 1fr;gap:3px 12px;margin:8px 0}
.rcard dt{color:var(--muted)}
.rcard dd{margin:0;text-align:right;font-weight:600;font-variant-numeric:tabular-nums}
.rcard .acts{display:flex;gap:6px;flex-wrap:wrap}

/* ---------- Map overlays ---------- */
.toolbar{position:absolute;top:12px;left:50%;transform:translateX(-50%);display:flex;gap:2px;background:#fff;border-radius:12px;padding:4px;box-shadow:var(--shadow);z-index:10}
.toolbar button{border:0;background:transparent;height:38px;padding:0 12px;border-radius:8px;display:inline-flex;align-items:center;gap:7px;font-weight:550;color:#334155;white-space:nowrap}
.toolbar button:hover{background:#f1f5f9}
.toolbar button.on{background:var(--brand);color:#fff}
.toolbar button svg{width:18px;height:18px}
.toolbar .sep{width:1px;background:var(--line);margin:6px 4px}
.basemaps{position:absolute;top:12px;right:12px;display:flex;background:#fff;border-radius:10px;box-shadow:var(--shadow);overflow:hidden;z-index:10}
.basemaps button{border:0;background:#fff;padding:9px 12px;font-weight:550;font-size:13px;border-right:1px solid var(--line);color:#334155}
.basemaps button:last-child{border-right:0}
.basemaps button.on{background:var(--brand);color:#fff}
.hud{position:absolute;bottom:46px;left:50%;transform:translateX(-50%);background:rgba(15,23,42,.92);color:#fff;border-radius:12px;padding:10px 14px;display:flex;gap:12px;align-items:center;box-shadow:var(--shadow);z-index:10;max-width:calc(100% - 24px)}
.hud .txt{line-height:1.4}
.hud .btn{height:30px;background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.25)}
.hud .btn:hover{background:rgba(255,255,255,.25)}
.hud .btn.primary{background:var(--brand-2);border-color:var(--brand-2);color:#0b1e4a}
.statusbar{position:absolute;left:0;right:0;bottom:0;height:28px;background:rgba(15,23,42,.82);color:#e2e8f0;display:flex;gap:18px;align-items:center;padding:0 12px;font-size:12px;z-index:9;font-variant-numeric:tabular-nums;backdrop-filter:blur(4px)}
.statusbar .sp{flex:1}
.loading{position:absolute;inset:0;background:rgba(241,245,249,.7);display:grid;place-items:center;z-index:30;backdrop-filter:blur(2px)}
.loading .box{background:#fff;padding:18px 24px;border-radius:12px;box-shadow:var(--shadow);min-width:260px;text-align:center}
.spin{width:30px;height:30px;border-radius:50%;border:3px solid var(--brand-soft);border-top-color:var(--brand);animation:sp .8s linear infinite;margin:0 auto 10px}
@keyframes sp{to{transform:rotate(360deg)}}
.bar{height:6px;background:var(--line);border-radius:3px;overflow:hidden;margin-top:10px}
.bar i{display:block;height:100%;width:0;background:var(--brand-2);transition:width .15s}
.gm-iw{font:13px/1.45 Inter,system-ui,sans-serif;min-width:190px;color:var(--ink)}
.gm-iw h4{margin:0 0 6px;font-size:14px}
.gm-iw table{width:100%;border-collapse:collapse}
.gm-iw td{padding:2px 0}
.gm-iw td:last-child{text-align:right;font-weight:650;padding-left:14px}
.gm-iw button{margin-top:8px;width:100%}

/* ---------- Toast & modal ---------- */
#toasts{position:fixed;top:68px;right:14px;display:flex;flex-direction:column;gap:8px;z-index:100}
.toast{background:#0f172a;color:#fff;padding:10px 14px;border-radius:10px;box-shadow:var(--shadow);max-width:360px;animation:in .2s ease}
.toast.err{background:#b91c1c}
@keyframes in{from{opacity:0;transform:translateY(-6px)}}
.modal{position:fixed;inset:0;background:rgba(15,23,42,.55);display:grid;place-items:center;z-index:120;padding:16px}
.modal .card{background:#fff;border-radius:14px;max-width:520px;width:100%;padding:22px;box-shadow:0 20px 50px rgba(0,0,0,.35)}
.modal h3{margin:0 0 6px}
.modal p{color:var(--muted);line-height:1.55;margin:6px 0}
.modal code{background:#f1f5f9;padding:1px 5px;border-radius:4px}

@media (max-width:900px){
  #sidebar{position:absolute;top:0;bottom:0;left:0;width:min(92vw,var(--sb-w));margin-left:0!important;transform:translateX(-102%);box-shadow:var(--shadow)}
  body.sb-open #sidebar{transform:none}
  .brand small{display:none}
  .toolbar{top:56px;max-width:calc(100% - 20px);overflow-x:auto}
  .toolbar button span{display:none}
  .basemaps{top:auto;bottom:130px;right:10px}
  .top-actions .hide-m{display:none}
}
/* ---------- Phát hiện đối tượng (AI) ---------- */
.det-box{margin:8px 0 2px;padding:8px 10px;border-radius:8px;background:#f8fafc;border:1px solid var(--line);font-size:12.5px;line-height:1.45}
.det-box.run{background:#eff6ff;border-color:#bfdbfe}
.det-box.err{background:#fef2f2;border-color:#fecaca;color:#b91c1c}
.det-box .bar{margin-top:6px;height:5px}
.det-box b{font-variant-numeric:tabular-nums}
.layer-item .sw.det{background:#22c55e}
.btn.accent{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.accent:hover{background:#1e40af}
.btn[disabled]{opacity:.55;cursor:not-allowed}

.toolbar button.detect-btn{background:var(--brand);color:#fff}
.toolbar button.detect-btn:hover{background:#1e40af}

.rcard.editing{box-shadow:0 0 0 2px rgba(59,130,246,.45)}

/* ---------- Thẻ vùng gọn + bảng so sánh ---------- */
.rcard .stat-grid{gap:6px;margin:8px 0 0}
.rcard .stat{padding:7px 10px}
.rcard .stat b{font-size:16px;margin-top:1px}
.rcard .stat.big b{font-size:26px}
.rcard .stat.big small{display:block;margin-top:1px}
.rcard .stat.wide{grid-column:1/-1}
.rcard .rdata{margin-top:8px;padding-top:7px;border-top:1px dashed var(--line);font-size:12.5px;color:var(--muted)}
.rcard .rdata b{color:var(--ink)}
.rcard .acts{margin-top:10px}
.tbl.cmp{margin:0}
.tbl.cmp td:first-child{white-space:nowrap;max-width:110px;overflow:hidden;text-overflow:ellipsis}
.tbl.cmp tfoot td{font-weight:700;border-top:2px solid var(--line);border-bottom:0;background:#f8fafc}
.dot{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:6px}
#regions>.tbl-wrap{margin:8px 0 4px;max-height:none}
/* ---------- Thước tỉ lệ (góc dưới trái): thanh ⊔ nằm dưới số mét ---------- */
.leaflet-control-scale{margin-left:12px!important;margin-bottom:6px!important}
.leaflet-control-scale-line{box-sizing:border-box!important;min-width:24px;border:2px solid #1e3a8a!important;border-top:0!important;background:rgba(255,255,255,.9)!important;color:#1e3a8a!important;font:600 11.5px/1.2 Inter,system-ui,sans-serif!important;padding:2px 7px 1px!important;text-shadow:none!important;border-radius:0 0 4px 4px;box-shadow:0 0 0 1px rgba(255,255,255,.85);white-space:nowrap;overflow:visible}
/* Chấm màu lớp cây phát hiện bằng mô hình (cố định #00e5ff) */
.layer-item .sw.det{background:#00e5ff}

/* Thẻ vùng: ô "Cây dừa phát hiện (AI)" và "Diện tích" nằm cùng một hàng, hai ô cao bằng nhau, số liệu thẳng hàng */
.rcard .stat-grid{align-items:stretch}
.rcard .stat{display:flex;flex-direction:column}
.rcard .stat span{flex:1 0 auto;margin-bottom:2px}
.rcard .stat.big{grid-column:auto}
.rcard .stat.big b{font-size:24px}
.rcard .stat.big small,.rcard .stat small{display:block}
.model-row{gap:6px}
.model-row select{flex:1;min-width:0;text-overflow:ellipsis}
.model-row .btn.icon{flex:0 0 36px;width:36px;height:36px;padding:0}
#modelHint{display:block;margin-top:5px;font-size:12px}
.tbl tr.rw.on{background:var(--brand-soft);font-weight:650}
#tblWrap .tbl th{white-space:normal;line-height:1.2}
#tblWrap .tbl td:first-child{max-width:90px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}