:root{
  --bg:#f3f4f7; --surface:#ffffff; --surface-2:#fafbfc;
  --ink:#1a1f28; --ink-soft:#525b68; --ink-faint:#838ca0;
  --line:#dde1e8; --line-soft:#e9ebf0;
  --brand:#c97a1f; --brand-ink:#7a4a10; --brand-bg:#fbf0dd; --brand-strong:#a8630f;
  --ok:#2f7a4f; --ok-bg:#e6f4ea; --ok-line:#bfe0cb;
  --warn:#9c7a12; --warn-bg:#fbf1d6; --warn-line:#eaddab;
  --danger:#b8402f; --danger-bg:#fbe9e5; --danger-line:#f0c6bd;
  --info:#2f6690; --info-bg:#e8f1f8; --info-line:#c3dced;
  --shadow:0 1px 2px rgba(20,24,31,0.05), 0 6px 20px rgba(20,24,31,0.07);
  --shadow-lg:0 4px 10px rgba(20,24,31,0.08), 0 20px 48px rgba(20,24,31,0.12);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#12151a; --surface:#1a1e25; --surface-2:#20242c;
    --ink:#e7e9ed; --ink-soft:#a8afba; --ink-faint:#71798a;
    --line:#2c313a; --line-soft:#242830;
    --brand:#e2a04f; --brand-ink:#f0c58a; --brand-bg:#2e2415; --brand-strong:#f0b25c;
    --ok:#7ec296; --ok-bg:#16261d; --ok-line:#274a34;
    --warn:#e0bd6e; --warn-bg:#2a2415; --warn-line:#4a3f22;
    --danger:#e0806e; --danger-bg:#2e1c18; --danger-line:#4a2c25;
    --info:#8fbcd6; --info-bg:#17232b; --info-line:#28394a;
    --shadow:0 1px 2px rgba(0,0,0,0.3), 0 6px 20px rgba(0,0,0,0.35);
    --shadow-lg:0 4px 10px rgba(0,0,0,0.4), 0 20px 48px rgba(0,0,0,0.5);
  }
}
:root[data-theme="dark"]{
  --bg:#12151a; --surface:#1a1e25; --surface-2:#20242c;
  --ink:#e7e9ed; --ink-soft:#a8afba; --ink-faint:#71798a;
  --line:#2c313a; --line-soft:#242830;
  --brand:#e2a04f; --brand-ink:#f0c58a; --brand-bg:#2e2415; --brand-strong:#f0b25c;
  --ok:#7ec296; --ok-bg:#16261d; --ok-line:#274a34;
  --warn:#e0bd6e; --warn-bg:#2a2415; --warn-line:#4a3f22;
  --danger:#e0806e; --danger-bg:#2e1c18; --danger-line:#4a2c25;
  --info:#8fbcd6; --info-bg:#17232b; --info-line:#28394a;
  --shadow:0 1px 2px rgba(0,0,0,0.3), 0 6px 20px rgba(0,0,0,0.35);
  --shadow-lg:0 4px 10px rgba(0,0,0,0.4), 0 20px 48px rgba(0,0,0,0.5);
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--bg); color:var(--ink);
  font-family:"IBM Plex Sans", system-ui, sans-serif;
  line-height:1.5; font-size:15.5px; -webkit-font-smoothing:antialiased;
}
::selection{background:var(--brand-bg); color:var(--brand-ink);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand); outline-offset:2px; border-radius:4px;}

.app{max-width:1120px; margin:0 auto; padding:24px 20px 80px;}

.topbar{display:flex; align-items:center; justify-content:space-between; gap:16px; padding:6px 4px 22px; flex-wrap:wrap;}
.wordmark{display:flex; align-items:center; gap:10px; font-weight:700; font-size:17px; letter-spacing:-0.01em;}
.wordmark .mark{width:26px; height:26px; border-radius:7px; background:var(--brand); color:#fff; display:flex; align-items:center; justify-content:center; font-size:14px; font-weight:700; font-family:"IBM Plex Mono",monospace;}
.proto-pill{font-family:"IBM Plex Mono",monospace; font-size:11px; font-weight:600; letter-spacing:.04em; text-transform:uppercase; background:var(--info-bg); color:var(--info); border:1px solid var(--info-line); padding:4px 10px; border-radius:20px;}

.demo-banner{
  display:flex; gap:10px; align-items:flex-start;
  background:var(--warn-bg); border:1px solid var(--warn-line); color:var(--warn);
  border-radius:10px; padding:12px 14px; font-size:13px; margin-bottom:24px;
}
.demo-banner b{color:inherit;}
.demo-banner code{font-family:"IBM Plex Mono",monospace; background:var(--surface); padding:1px 5px; border-radius:4px;}

.wizard{display:grid; grid-template-columns:220px minmax(0,1fr); gap:28px; align-items:start;}
@media (max-width:760px){.wizard{grid-template-columns:1fr;}}

.steps{display:flex; flex-direction:column; gap:2px; position:sticky; top:20px;}
@media (max-width:760px){
  .steps{position:static; flex-direction:row; overflow-x:auto; gap:6px; padding-bottom:8px; -webkit-overflow-scrolling:touch;}
  .step-item{flex:0 0 auto;}
  .step-item .label{display:none;}
}
.step-item{display:flex; align-items:center; gap:10px; padding:9px 10px; border-radius:8px; cursor:pointer; border:1px solid transparent; background:transparent;}
.step-item .n{
  width:22px; height:22px; border-radius:50%; flex:0 0 auto;
  display:flex; align-items:center; justify-content:center;
  font-family:"IBM Plex Mono",monospace; font-size:11px; font-weight:600;
  background:var(--line-soft); color:var(--ink-faint); border:1px solid var(--line);
}
.step-item .label{font-size:13.5px; color:var(--ink-faint);}
.step-item.active{background:var(--brand-bg);}
.step-item.active .n{background:var(--brand); color:#fff; border-color:var(--brand);}
.step-item.active .label{color:var(--brand-ink); font-weight:600;}
.step-item.done .n{background:var(--ok-bg); color:var(--ok); border-color:var(--ok-line);}
.step-item.done .label{color:var(--ink-soft);}
.step-item:not(.active):hover{background:var(--line-soft);}

.panel{background:var(--surface); border:1px solid var(--line); border-radius:14px; box-shadow:var(--shadow); overflow:hidden;}
.panel-body{padding:28px 30px;}
@media (max-width:600px){.panel-body{padding:20px 18px;}}
.step-view{display:none;}
.step-view.active{display:block;}

h2.step-title{font-size:20px; font-weight:700; letter-spacing:-0.01em; margin:0 0 4px;}
p.step-sub{color:var(--ink-soft); font-size:14px; margin:0 0 22px; max-width:56ch;}

label.field{display:block; margin-bottom:16px;}
label.field .fl{display:block; font-size:12.5px; font-weight:600; color:var(--ink-soft); margin-bottom:6px; letter-spacing:.01em;}
.field select, .field input[type=text], .field input[type=date]{
  width:100%; font-family:inherit; font-size:14.5px; padding:9px 12px;
  border:1px solid var(--line); border-radius:8px; background:var(--surface-2); color:var(--ink);
}
.field select:focus, .field input:focus{border-color:var(--brand);}
.grid-2{display:grid; grid-template-columns:1fr 1fr; gap:16px;}
@media (max-width:560px){.grid-2{grid-template-columns:1fr;}}

.choice-row{display:flex; gap:10px; flex-wrap:wrap;}
.choice{
  border:1px solid var(--line); background:var(--surface-2); border-radius:9px;
  padding:9px 14px; font-size:13.5px; cursor:pointer; color:var(--ink-soft);
}
.choice.selected{border-color:var(--brand); background:var(--brand-bg); color:var(--brand-ink); font-weight:600;}

.map-wrap{border:1px solid var(--line); border-radius:12px; overflow:hidden; background:var(--surface-2); margin-bottom:6px;}
.map-search{display:flex; gap:0; border-bottom:1px solid var(--line); position:relative;}
.map-search input{flex:1; border:none; background:transparent; padding:12px 14px; font-size:14.5px; color:var(--ink); font-family:inherit;}
.map-search input:focus{outline:none;}
.map-search .icon{display:flex; align-items:center; padding:0 12px; color:var(--ink-faint);}

.map-canvas{height:320px; width:100%;}
.pin-hint{font-size:12px; color:var(--ink-faint); background:var(--surface); padding:8px 12px; border-top:1px solid var(--line);}

.skeleton-line{height:14px; border-radius:4px; background:linear-gradient(90deg,var(--line-soft),var(--line),var(--line-soft)); background-size:200% 100%; animation:shimmer 1.3s infinite; margin-bottom:8px;}
@keyframes shimmer{0%{background-position:200% 0;}100%{background-position:-200% 0;}}
@media (prefers-reduced-motion: reduce){.skeleton-line{animation:none;}}

.data-card{border:1px solid var(--line); border-radius:10px; padding:16px 18px; background:var(--surface-2); margin-top:14px;}
.data-card .dt{display:grid; grid-template-columns:repeat(2,1fr); gap:12px 20px;}
@media (max-width:560px){.data-card .dt{grid-template-columns:1fr;}}
.dt-item .k{font-size:11.5px; text-transform:uppercase; letter-spacing:.04em; color:var(--ink-faint); margin-bottom:3px;}
.dt-item .v{font-family:"IBM Plex Mono",monospace; font-size:14.5px; font-weight:600;}
.dt-item select, .dt-item input{font-family:"IBM Plex Mono",monospace; font-size:13.5px; padding:5px 8px; border:1px solid var(--line); border-radius:6px; background:var(--surface); color:var(--ink); width:100%;}

.callout{border-left:3px solid var(--info); background:var(--info-bg); color:var(--info); border-radius:8px; padding:12px 14px; font-size:13.5px; margin:16px 0;}
.callout.warn{border-left-color:var(--warn); background:var(--warn-bg); color:var(--warn);}
.callout.danger{border-left-color:var(--danger); background:var(--danger-bg); color:var(--danger);}
.callout.ok{border-left-color:var(--ok); background:var(--ok-bg); color:var(--ink);}
.callout b{color:inherit;}

.sketch-card{display:flex; gap:20px; align-items:flex-start; border:1px solid var(--line); border-radius:12px; padding:18px; background:var(--surface-2);}
@media (max-width:560px){.sketch-card{flex-direction:column;}}
.sketch-card svg{flex:0 0 220px; width:220px; height:150px; background:var(--surface); border:1px solid var(--line); border-radius:8px;}
.sketch-meta .code{display:inline-block; font-family:"IBM Plex Mono",monospace; font-size:12.5px; font-weight:600; background:var(--brand-bg); color:var(--brand-ink); padding:2px 9px; border-radius:6px; margin-bottom:8px;}
.sketch-meta h3{margin:0 0 6px; font-size:15.5px;}
.sketch-meta p{margin:0; font-size:13.5px; color:var(--ink-soft); max-width:44ch;}

table{width:100%; border-collapse:collapse; font-size:13.5px;}
.table-wrap{border:1px solid var(--line); border-radius:10px; overflow:hidden; margin-top:6px; overflow-x:auto;}
th,td{text-align:left; padding:10px 14px; border-bottom:1px solid var(--line-soft);}
th{background:var(--surface-2); font-size:11.5px; text-transform:uppercase; letter-spacing:.03em; color:var(--ink-faint);}
tr:last-child td{border-bottom:none;}
td.num, th.num{font-family:"IBM Plex Mono",monospace; text-align:right; font-variant-numeric:tabular-nums;}
tr.best{background:var(--ok-bg);}
.best-badge{font-family:"IBM Plex Mono",monospace; font-size:10.5px; font-weight:700; background:var(--ok); color:#fff; padding:2px 7px; border-radius:20px; margin-left:8px; vertical-align:middle;}

.review-grid{display:grid; grid-template-columns:1fr 1fr; gap:24px;}
@media (max-width:700px){.review-grid{grid-template-columns:1fr;}}
.review-list{list-style:none; margin:0; padding:0; font-size:13.5px;}
.review-list li{display:flex; justify-content:space-between; gap:12px; padding:8px 0; border-bottom:1px solid var(--line-soft);}
.review-list li:last-child{border-bottom:none;}
.review-list .k{color:var(--ink-faint);}
.review-list .v{font-weight:600; text-align:right;}

.disclaimer{border:1px solid var(--warn-line); background:var(--warn-bg); border-radius:10px; padding:16px 18px; margin-top:20px;}
.disclaimer label{display:flex; gap:10px; align-items:flex-start; font-size:13.5px; color:var(--ink); cursor:pointer;}
.disclaimer input[type=checkbox]{margin-top:3px; width:16px; height:16px; accent-color:var(--brand); flex:0 0 auto;}

.export-success{display:flex; align-items:center; gap:14px; border:1px solid var(--ok-line); background:var(--ok-bg); border-radius:10px; padding:16px 18px; margin-top:18px;}
.export-success .icon{width:36px; height:36px; border-radius:50%; background:var(--ok); color:#fff; display:flex; align-items:center; justify-content:center; font-size:17px; flex:0 0 auto;}

.footer-nav{display:flex; justify-content:space-between; align-items:center; padding:18px 30px; border-top:1px solid var(--line); background:var(--surface-2);}
.btn{font-family:inherit; font-size:14px; font-weight:600; padding:10px 18px; border-radius:8px; cursor:pointer; border:1px solid var(--line); background:var(--surface); color:var(--ink);}
.btn:hover{background:var(--line-soft);}
.btn.primary{background:var(--brand); color:#fff; border-color:var(--brand-strong);}
.btn.primary:hover{background:var(--brand-strong);}
.btn:disabled{opacity:.45; cursor:not-allowed;}

.field-hint{font-size:12px; color:var(--ink-faint); margin-top:4px;}