:root{
  --bg:#f5f7fa;
  --panel:#ffffff;
  --panel-2:#eef2f7;
  --ink:#1b2733;
  --ink-soft:#5a6b7b;
  --line:#d7dee7;
  --brand:#0b5fa5;
  --brand-2:#0e7fc7;
  --accent:#e8743b;
  --ok:#2e9e5b;
  --warn:#d98b00;
  --err:#cc3b3b;
  --shadow:0 2px 10px rgba(20,40,70,.08);
  --radius:10px;
  --maxw:1280px;
  /* chart colours (overridden in dark theme) */
  --chart-bg:#ffffff;
  --chart-grid:#e7edf3;
  --chart-axis:#b8c4d2;
  --chart-text:#1b2733;
  --chart-tick:#8093a5;
}
[data-theme="dark"]{
  --bg:#0f1620;
  --panel:#182230;
  --panel-2:#1f2c3d;
  --ink:#e6edf5;
  --ink-soft:#9fb0c3;
  --line:#2c3a4d;
  --brand:#4aa3e8;
  --brand-2:#6cb4ec;
  --accent:#f0915a;
  --ok:#43c47a;
  --warn:#e8a83c;
  --err:#ef5a5a;
  --shadow:0 2px 12px rgba(0,0,0,.45);
  --chart-bg:#16202c;
  --chart-grid:#243243;
  --chart-axis:#3a4a5e;
  --chart-text:#cdd8e6;
  --chart-tick:#8497ab;
}
[data-theme="dark"] .field input,
[data-theme="dark"] .field select{background:#0f1822;color:var(--ink)}
[data-theme="dark"] .tab{background:#0f1822;color:var(--ink-soft)}
[data-theme="dark"] table.data th{background:var(--panel-2)}
[data-theme="dark"] table.data tr:nth-child(even){background:#131d28}
[data-theme="dark"] .chip{background:#0f1822;color:var(--brand)}
[data-theme="dark"] .note{background:#241d10;border-color:#5a4416;color:#e3c585}
[data-theme="dark"] .warn-box{background:#2a1414;border-color:#5e2424;color:#f0a3a3}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"Segoe UI",Roboto,"Helvetica Neue","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}

/* ===== Header ===== */
#app-header{
  position:sticky;top:0;z-index:50;
  background:linear-gradient(180deg,#0b3c66,#0b5fa5);
  color:#fff;box-shadow:var(--shadow);
  border-bottom:1px solid rgba(255,255,255,.10);
}
.hdr-inner{
  max-width:none;margin:0 auto;padding:0 18px;
  display:flex;align-items:center;gap:14px;height:60px;
}
.hdr-logo{display:flex;align-items:center;gap:9px;font-weight:700;font-size:18px;white-space:nowrap;color:#fff}
.hdr-logo:hover{text-decoration:none;opacity:.92}
.hdr-logo-img{width:26px;height:26px;display:block;border-radius:6px;background:#fff;padding:1px}
.hdr-nav{display:flex;align-items:center;gap:5px;flex:1;min-width:0;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.hdr-nav::-webkit-scrollbar{display:none}
.hdr-nav a{
  color:#cfe0f0;padding:7px 11px;border-radius:999px;font-size:13px;font-weight:500;white-space:nowrap;transition:.15s;
}
.hdr-nav a:hover{background:rgba(255,255,255,.14);color:#fff;text-decoration:none}
.hdr-nav a.active{background:var(--accent);color:#fff;box-shadow:0 2px 8px rgba(232,116,59,.45)}
.hdr-tools{display:flex;align-items:center;gap:8px;flex-shrink:0}
.btn-home{white-space:nowrap}
.btn-home.active{background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:0 2px 8px rgba(232,116,59,.45)}
.btn-icon{padding:8px 10px;font-size:15px;line-height:1}
.btn-email{text-decoration:none}
.hdr-burger{display:none;background:transparent;border:0;color:#fff;font-size:22px;cursor:pointer;padding:4px 6px}

/* ===== Layout ===== */
.wrap{max-width:var(--maxw);margin:0 auto;padding:22px 16px 60px}
.page-head{margin-bottom:18px}
.page-head h1{font-size:24px;margin:0 0 4px}
.page-head p{margin:0;color:var(--ink-soft);max-width:780px}
.grid{display:grid;gap:18px}
.cols-2{grid-template-columns:380px 1fr}

/* shared buttons (used across pages) */
.btn{
  display:inline-flex;align-items:center;gap:6px;cursor:pointer;
  border:1px solid transparent;border-radius:8px;padding:8px 13px;font-size:13.5px;
  font-weight:600;transition:.15s;white-space:nowrap;
}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.25)}
.btn-ghost:hover{background:rgba(255,255,255,.22)}
.lang-sel{
  background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.25);
  border-radius:8px;padding:8px 10px;font-size:13px;cursor:pointer;
}
.lang-sel option{color:#1b2733}

@media(max-width:900px){
  .cols-2{grid-template-columns:1fr}
  .hdr-inner{height:auto;flex-wrap:wrap;padding:10px 12px;gap:10px}
  .hdr-nav{order:3;width:100%;display:none;flex-wrap:wrap;gap:6px;overflow:visible}
  .hdr-nav.open{display:flex}
  .hdr-nav a{flex:1 1 auto;text-align:center}
  .hdr-tools{margin-left:auto}
}
@media(max-width:600px){
  .wrap{padding:14px 10px 40px}
  .page-head h1{font-size:20px}
  .hdr-nav a{padding:6px 8px;font-size:12.5px}
  .row2,.row3{grid-template-columns:1fr}
  .toolbar{flex-direction:column;align-items:stretch}
  .toolbar .btn{width:100%;justify-content:center}
  .stat-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr))}
  .export-bar .btn{font-size:12px;padding:7px 10px}
  .card-pad{padding:14px}
}

/* ===== Cards / panels ===== */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.card-pad{padding:18px}
.card h2{font-size:16px;margin:0 0 12px;display:flex;align-items:center;gap:8px}
.card h3{font-size:14px;margin:14px 0 8px;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.04em}

/* ===== Forms ===== */
.field{margin-bottom:12px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:4px;color:var(--ink)}
.field .hint{font-size:11.5px;color:var(--ink-soft);margin-top:2px}
.field input,.field select{
  width:100%;padding:9px 10px;border:1px solid var(--line);border-radius:8px;font-size:14px;
  background:#fff;color:var(--ink);
}
.field input:focus,.field select:focus{outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(14,127,199,.15)}
input.invalid{border-color:var(--err)!important;background:rgba(204,59,59,.07);box-shadow:0 0 0 3px rgba(204,59,59,.12)}
.err-msg{display:none;font-size:11.5px;color:var(--err);margin-top:2px}
input.invalid ~ .err-msg{display:block}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.row3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-primary:hover{background:#0a528f}
.btn-soft{background:var(--panel-2);color:var(--ink);border-color:var(--line)}
.btn-soft:hover{background:#e3e9f1}

/* ===== Results ===== */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.stat{background:var(--panel-2);border:1px solid var(--line);border-radius:8px;padding:11px 12px}
.stat .k{font-size:11.5px;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.03em}
.stat .v{font-size:19px;font-weight:700;margin-top:2px}
.stat .v small{font-size:12px;font-weight:600;color:var(--ink-soft)}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px}
.tab{padding:7px 12px;border:1px solid var(--line);background:#fff;border-radius:8px;cursor:pointer;font-size:13px;font-weight:600;color:var(--ink-soft)}
.tab.active{background:var(--brand);color:#fff;border-color:var(--brand)}
canvas{max-width:100%}

/* ===== Portal cards ===== */
.modules{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.module{
  display:flex;flex-direction:column;gap:8px;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);transition:.15s;
}
.module:hover{transform:translateY(-2px);border-color:var(--brand-2);text-decoration:none}
.module .ico{font-size:26px}
.module .mt{font-size:16px;font-weight:700;color:var(--ink)}
.module .md{font-size:13px;color:var(--ink-soft);flex:1}
.module .go{font-size:13px;font-weight:700;color:var(--brand)}

/* ===== Table ===== */
table.data{width:100%;border-collapse:collapse;font-size:13px}
table.data th,table.data td{border:1px solid var(--line);padding:8px 10px;text-align:left}
table.data th{background:var(--panel-2);position:sticky;top:0}
table.data tr:nth-child(even){background:#fafcff}
table.tbl-pkg{width:100%;border-collapse:collapse;font-size:13px;margin-top:10px}
table.tbl-pkg th,table.tbl-pkg td{border:1px solid var(--line);padding:8px 10px;text-align:left}
table.tbl-pkg th{background:var(--panel-2)}
table.tbl-pkg tr:nth-child(even){background:rgba(127,127,127,.06)}
.table-wrap{max-height:520px;overflow:auto;border:1px solid var(--line);border-radius:8px}

.note{background:#fff8ef;border:1px solid #f3d9b0;color:#7a5a17;border-radius:8px;padding:10px 12px;font-size:12.5px;margin-top:12px}

/* ===== Sweep page: tables & sensitivity bars ===== */
.tbl-wrap{margin-top:10px;overflow:auto;border:1px solid var(--line);border-radius:8px}
.tbl{width:100%;border-collapse:collapse;font-size:13px}
.tbl th,.tbl td{border:1px solid var(--line);padding:7px 10px;text-align:left}
.tbl th{background:var(--panel-2)}
.tbl tr:nth-child(even){background:#fafcff}
.bar-row{display:flex;align-items:center;gap:10px;margin:6px 0;font-size:13px}
.bar-name{width:84px;color:var(--ink);font-weight:600;flex:none}
.bar-track{flex:1;height:14px;background:var(--panel-2);border:1px solid var(--line);border-radius:7px;overflow:hidden}
.bar-fill{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand-2))}
.bar-val{width:46px;text-align:right;color:var(--ink-soft);flex:none}
.warn-box{background:#fdeeee;border:1px solid #f3bcbc;color:#9a2b2b;border-radius:8px;padding:10px 12px;font-size:12.5px;margin-top:12px}
.export-bar{margin-top:10px;display:flex;gap:8px;flex-wrap:wrap}
.banner-warn{display:none;background:#fdeeee;border:1px solid #f3bcbc;color:#9a2b2b;border-radius:8px;padding:10px 12px;font-size:13px;margin:0 0 12px;font-weight:600}
.banner-warn.show{display:block}
.fav-bar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:12px;padding:10px;background:var(--panel-2);border:1px dashed var(--line);border-radius:8px}
.fav-bar .fav-label{font-weight:600;font-size:13px}
.fav-bar .fav-name{flex:1;min-width:120px;padding:7px 9px;border:1px solid var(--line);border-radius:7px;font-size:13px;background:var(--panel);color:var(--ink)}
.fav-bar .fav-select{padding:7px 9px;border:1px solid var(--line);border-radius:7px;font-size:13px;background:var(--panel);color:var(--ink);min-width:140px}

footer.foot{max-width:var(--maxw);margin:0 auto;padding:18px 16px;color:var(--ink-soft);font-size:12.5px;border-top:1px solid var(--line)}

.preset-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.chip{background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 12px;font-size:12.5px;cursor:pointer;color:var(--brand);font-weight:600}
.chip:hover{background:var(--panel-2)}