:root{
  --bg:#edf2f4;--paper:#fff;--ink:#172a34;--muted:#657680;--line:#d2dde2;
  --accent:#17627e;--accent-dark:#113f52;--accent-bg:#e5f2f7;
  --green:#2f7758;--green-bg:#e9f5ef;--orange:#a66319;--orange-bg:#fff4e4;
  --red:#994040;--red-bg:#faeaea;--purple:#75449a;--shadow:0 10px 30px rgba(24,51,64,.08);
  --radius:18px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:15.5px/1.58 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
a{color:var(--accent)}button,input,select{font:inherit}img,svg{max-width:100%}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;z-index:99;background:#fff;padding:10px}
.site-header{background:linear-gradient(135deg,#103747,#1b627c);color:#fff;padding:34px 0 28px}
.wrap{max-width:1180px;margin:auto;padding:0 22px}.eyebrow{text-transform:uppercase;letter-spacing:.13em;font-size:12px;font-weight:800;opacity:.78}
h1{font-size:clamp(2rem,4.8vw,4rem);line-height:1.04;margin:8px 0 12px;max-width:950px}.lead{font-size:1.1rem;max-width:900px;color:#e8f4f7}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.badge{padding:6px 10px;border:1px solid rgba(255,255,255,.25);border-radius:999px;background:rgba(255,255,255,.08);font-size:13px;font-weight:700}
.top-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.btn{border:0;border-radius:11px;padding:10px 14px;font-weight:750;cursor:pointer;background:#fff;color:var(--accent-dark)}
.btn.secondary{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.35)}
.nav{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{max-width:1180px;margin:auto;padding:0 22px;display:flex;align-items:center}.nav strong{margin-right:18px;white-space:nowrap}.nav-links{display:flex;gap:4px;overflow:auto}
.nav a{display:block;padding:14px 10px;text-decoration:none;color:var(--muted);font-size:13px;font-weight:700;white-space:nowrap;border-bottom:3px solid transparent}.nav a.active{color:var(--accent);border-color:var(--accent)}
main{max-width:1180px;margin:22px auto 70px;padding:0 22px}.section{scroll-margin-top:72px;margin-top:22px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:25px}
h2{font-size:1.55rem;line-height:1.2;margin:0 0 14px}h3{font-size:1.05rem;margin:0 0 8px}.muted{color:var(--muted)}.small{font-size:13px}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{border:1px solid var(--line);border-radius:14px;padding:16px;background:#fbfcfd}.card.accent{background:var(--accent-bg);border-color:#bdd8e3}.card.green{background:var(--green-bg);border-color:#c7e1d3}.card.orange{background:var(--orange-bg);border-color:#edd5af}
.metric-label{text-transform:uppercase;letter-spacing:.08em;font-size:11px;font-weight:800;color:var(--muted)}.metric-value{font-size:1.65rem;font-weight:850;line-height:1.1;margin:5px 0}
.callout{margin-top:14px;padding:13px 15px;border-radius:12px;border-left:5px solid var(--accent);background:var(--accent-bg)}.callout.warn{border-color:var(--orange);background:var(--orange-bg)}.callout.danger{border-color:var(--red);background:var(--red-bg)}.callout.good{border-color:var(--green);background:var(--green-bg)}
.diagram{border:1px solid var(--line);border-radius:14px;background:#f8fafb;padding:10px;overflow:auto}.diagram img{display:block;width:100%;min-width:720px}
.floorplan-shell{border:1px solid var(--line);border-radius:14px;background:#f5f7f8;padding:10px}.floor-controls{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:10px}
.check{display:flex;gap:7px;align-items:center;font-size:13px;font-weight:700}.floorplan{position:relative;max-width:930px;margin:auto}.floorplan>img{display:block;width:100%;border-radius:8px}.floorplan svg{position:absolute;inset:0;width:100%;height:100%}
.layer.hidden{display:none}.marker{fill:#fff;stroke-width:5}.m1{stroke:#17627e}.m2{stroke:#2f7758}.m3{stroke:#75449a}.route{fill:none;stroke:#17627e;stroke-width:8;stroke-dasharray:18 13}.route2{fill:none;stroke:#2f7758;stroke-width:8;stroke-dasharray:18 13}.label-bg{fill:rgba(255,255,255,.92);stroke:#aab9c0;stroke-width:2}.fp-label{font:700 24px system-ui;fill:#17303d}.fp-sub{font:18px system-ui;fill:#5e707a}
table{width:100%;border-collapse:collapse}th,td{text-align:left;vertical-align:top;border-bottom:1px solid var(--line);padding:10px 8px}th{font-size:11px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted)}
.phase-line{display:grid;grid-template-columns:52px 1fr;gap:14px;margin:16px 0}.phase-num{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;color:#fff;background:var(--accent);font-weight:850}
.form-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px}.field label{display:block;font-size:12px;font-weight:800;color:var(--muted);margin-bottom:5px}.field input,.field select{width:100%;border:1px solid #b9c7ce;border-radius:10px;padding:9px 10px;background:#fff}
.results{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-top:15px}.result{background:#f4f8fa;border:1px solid var(--line);border-radius:12px;padding:13px}.result strong{display:block;font-size:1.45rem}.result span{font-size:12px;color:var(--muted)}
.recommendations{margin-top:14px}.rec{display:flex;gap:10px;padding:10px 0;border-bottom:1px solid var(--line)}.rec:last-child{border:0}.dot{width:11px;height:11px;border-radius:50%;background:var(--accent);margin-top:6px;flex:none}
.chart{height:285px;border:1px solid var(--line);border-radius:14px;padding:15px;background:#fafcfd;display:flex;gap:28px;align-items:flex-end;justify-content:center}.bar-group{height:235px;width:150px;display:flex;flex-direction:column;justify-content:flex-end;text-align:center}.bar{border-radius:10px 10px 3px 3px;background:var(--accent);min-height:4px;position:relative}.bar.after{background:var(--green)}.bar span{position:absolute;top:-28px;left:0;right:0;font-weight:800}.bar-label{margin-top:8px;font-size:13px;font-weight:750}
.decision-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.decision{border-left:4px solid var(--accent);background:#f8fafb;padding:12px 14px;border-radius:8px}.decision.warn{border-color:var(--orange)}.decision.good{border-color:var(--green)}
.scenario{border:1px solid var(--line);border-radius:14px;overflow:hidden}.scenario h3{padding:13px 15px;background:#f3f7f9;margin:0}.scenario .body{padding:14px}
.tag{display:inline-block;padding:3px 8px;border-radius:999px;background:#e9eef1;font-size:11px;font-weight:850}.tag.green{background:var(--green-bg);color:var(--green)}.tag.orange{background:var(--orange-bg);color:var(--orange)}
.sources li{margin:7px 0}.footer{max-width:1180px;margin:auto;padding:0 22px 40px;color:var(--muted);font-size:12px}
@media(max-width:900px){.grid.three,.grid.four,.results{grid-template-columns:repeat(2,minmax(0,1fr))}.form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:650px){.grid,.grid.three,.grid.four,.results,.form-grid,.decision-grid{grid-template-columns:1fr}.nav strong{display:none}.section{padding:18px}.chart{gap:15px}.bar-group{width:120px}}
@media print{body{background:#fff;font-size:11px}.site-header{background:#fff;color:#000;padding:10px 0}.lead{color:#333}.badges,.top-actions,.nav,.floor-controls{display:none}.section{box-shadow:none;break-inside:avoid;margin-top:10px;padding:15px}.diagram{overflow:visible}.diagram img{min-width:0}.wrap,main{max-width:none}.floorplan{max-width:700px}}