:root{
  font-family:system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',Tahoma,Arial,sans-serif;
  color-scheme:light; --bg:#f3f6fc; --paper:#fff; --ink:#182440; --muted:#71809a;
  --line:#e3e9f4; --accent:#435df4; --accent-hover:#334cda; --accent-soft:#edf0ff;
  --mint:#16866b; --mint-soft:#e9f9f2; --warning:#b9791e; --warn-soft:#fff4df;
  --shadow:0 12px 38px rgba(26,46,95,.065); --radius:18px;
}
*{box-sizing:border-box}
html{min-height:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);line-height:1.65;font-size:14px}
button,input,textarea,select{font:inherit}
button{cursor:pointer;transition:background .18s, transform .12s, border-color .18s}
button:active{transform:translateY(1px)}
button:disabled{cursor:not-allowed;opacity:.55}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #94aaff;outline-offset:2px}
.shell{max-width:1110px;padding:0 18px 100px;margin:auto}
.topbar{position:relative;background:linear-gradient(115deg,#162758,#273c82 64%,#4355a7);color:white;overflow:hidden}
.topbar:after{content:'';position:absolute;left:-40px;top:-100px;width:330px;height:330px;border-radius:50%;background:radial-gradient(circle,rgba(142,159,255,.23),transparent 70%);pointer-events:none}
.top-inner{max-width:1110px;margin:auto;padding:24px 18px 26px;position:relative;z-index:1}
.brand-line{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:11px}
.logo{display:grid;place-items:center;width:45px;height:45px;border-radius:14px;background:#ffffff21;color:white;font-size:29px;border:1px solid #ffffff35}
.brand-name{font-weight:800;font-size:17px;letter-spacing:-.3px;line-height:1.3}
.brand-small{font-size:11px;color:#c5d3fb;display:block;font-weight:500;direction:ltr;text-align:right}
.header-actions{display:flex;gap:8px;flex-wrap:wrap}
.btn{border:1px solid transparent;border-radius:12px;padding:10px 16px;font-weight:720;display:inline-flex;align-items:center;justify-content:center;gap:7px;white-space:nowrap}
.btn.primary{color:white;background:var(--accent)}.btn.primary:hover{background:var(--accent-hover)}
.btn.soft{color:var(--accent);background:var(--accent-soft)}.btn.soft:hover{background:#dfe5ff}
.btn.outline{color:var(--ink);border-color:var(--line);background:var(--paper)}.btn.outline:hover{background:var(--bg)}
.btn.ghost{color:#fff;background:#ffffff15;border-color:#ffffff33}.btn.ghost:hover{background:#ffffff26}
.btn.mini{padding:6px 11px;font-size:12px;border-radius:9px}
.hero{margin-top:22px;max-width:720px}
.hero h1{font-size:clamp(23px,4vw,33px);line-height:1.4;margin:0 0 8px;font-weight:820;letter-spacing:-.6px}
.hero p{color:#c9d5f5;margin:0;line-height:1.9}
.eyebrow{display:inline-flex;align-items:center;gap:6px;padding:5px 10px;border:1px solid #ffffff29;background:#ffffff15;border-radius:90px;font-size:12px;color:#e1e9ff;margin-bottom:12px}
.dot{display:inline-block;width:7px;height:7px;background:#63e8a6;border-radius:50%}
.dot.demo{background:#ffce7b}
.tabs-wrap{position:sticky;top:0;z-index:8;background:rgba(243,246,252,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);padding:12px 0;margin:0 0 20px}
.tabs{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding:2px;max-width:1110px;margin:auto}
.tabs::-webkit-scrollbar{display:none}
.tab{border:1px solid var(--line);background:var(--paper);color:#66748f;border-radius:40px;padding:9px 15px;font-size:12px;font-weight:750;white-space:nowrap}
.tab.active{background:var(--accent);border-color:var(--accent);color:white;box-shadow:0 5px 18px #435df429}
.panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.section-head{display:flex;align-items:start;justify-content:space-between;gap:10px;margin:0 0 17px}
.section-head h2{font-size:19px;line-height:1.4;margin:0 0 4px}
.section-head p{margin:0;color:var(--muted);font-size:12px}
.section-head .tag{padding:6px 10px;border:1px solid var(--line);border-radius:10px;color:var(--muted);font-size:11px;white-space:nowrap}
.section-card{padding:23px;margin-bottom:16px}
.section-subtitle{font-weight:800;margin:16px 0 9px;font-size:15px}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:16px}
.stat-card{background:var(--paper);border:1px solid var(--line);padding:18px;border-radius:16px;min-width:0}
.stat-label{color:var(--muted);font-size:12px;display:flex;gap:6px;align-items:center}
.stat-val{font-size:23px;letter-spacing:-.6px;font-weight:850;margin-top:9px;direction:ltr;text-align:right;font-variant-numeric:tabular-nums}
.stat-sub{font-size:11px;color:var(--muted);margin-top:5px}
.stat-card.primary-stat{background:#eaf0ff;border-color:#dbe6ff}
.stat-card.primary-stat .stat-label{color:#4966c7}
.stat-card.primary-stat .stat-val{color:#243cba}
.tiny-title{font-size:11px;font-weight:800;color:var(--muted);letter-spacing:.3px}
.city-head{display:flex;align-items:center;gap:7px;white-space:nowrap}
.cities{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.city-panel{padding:18px;border:1px solid var(--line);border-radius:14px;background:#fbfcff;min-width:0}
.city-panel h3{margin:0 0 13px;font-size:16px}
.metric{display:flex;justify-content:space-between;align-items:center;gap:9px;border-top:1px solid var(--line);padding:10px 0}
.metric span{color:var(--muted);font-size:12px}
.metric strong{direction:ltr;font-size:15px;font-variant-numeric:tabular-nums}
.hint{display:flex;align-items:start;gap:9px;border-radius:12px;padding:11px 13px;background:var(--accent-soft);color:#34458b;margin:13px 0;font-size:12px}
.hint.warn{background:var(--warn-soft);color:#80551a}
.progress-track{height:8px;background:#e6ecf5;overflow:hidden;border-radius:20px}
.progress-fill{height:100%;width:0;background:linear-gradient(90deg,#4058e5,#6b80ff);transition:width .3s;border-radius:20px}
.progress-top{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;margin-bottom:8px}
.group-shortcut{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin-top:14px}
.shortcut{border:1px solid var(--line);background:#fbfcff;border-radius:13px;padding:12px;text-align:right;display:flex;justify-content:space-between;align-items:center;gap:12px}
.shortcut strong{display:block;font-size:13px}
.shortcut small{display:block;font-size:11px;color:var(--muted)}
.shortcut:hover{border-color:#aab8ff}
.table-clip{width:100%;overflow-x:auto;border:1px solid var(--line);border-radius:14px}
.compare-table{width:100%;border-spacing:0;border-collapse:collapse;table-layout:fixed;min-width:360px}
.compare-table thead{background:#f6f8fd}
.compare-table th{font-size:12px;color:#53617a;font-weight:800;text-align:right;padding:13px 13px}
.compare-table th:not(:first-child){text-align:center}
.compare-table th:first-child{width:44%}
.compare-table th:nth-child(2),.compare-table th:nth-child(3){width:28%}
.compare-table td{vertical-align:middle;padding:12px 12px;border-top:1px solid var(--line)}
.compare-table tr.details-row td{background:#fbfcff;border-top:0;padding:0 12px 12px}
.item-title{font-size:13px;line-height:1.5;font-weight:700}
.item-action{background:transparent;border:0;color:var(--accent);font-size:11px;padding:4px 0 0;font-weight:650;display:block;text-align:right}
.money-field,.score-field,.text-field{background:#fff;width:100%;border:1px solid #d8e1ef;border-radius:10px;color:var(--ink);padding:9px 9px;outline:none;transition:border-color .15s;font-variant-numeric:tabular-nums}
.money-field{text-align:center;direction:ltr;font-size:14px;min-width:0}
.money-field:focus,.text-field:focus,.score-field:focus{border-color:var(--accent);box-shadow:0 0 0 3px #435df41c}
.money-field:disabled,.text-field:disabled,.score-field:disabled{background:#f2f4f9;color:#617086}
.score-field{text-align:center;text-align-last:center}
.text-field{font-size:12px}
.details-inner{padding:10px 13px 14px;border:1px solid #e4eafb;border-radius:12px;background:white}
.question{font-size:12px;color:#53617c;margin-bottom:12px}
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.detail-city{display:grid;gap:9px}
.detail-city strong{font-size:12px}
.flabel{font-size:11px;font-weight:700;color:#687893;display:block;margin-bottom:3px}
.group-total{display:grid;grid-template-columns:44% 28% 28%;align-items:center;gap:0;background:#f4f6ff;padding:15px 12px;border-radius:12px;margin-top:12px;font-size:13px}
.group-total>span:not(:first-child){text-align:center;direction:ltr;font-weight:850;font-size:15px}
.fine{color:var(--muted);font-size:11px;margin-top:8px}
.assumptions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.assumption{padding:11px;border-radius:11px;border:1px solid var(--line);background:#fafbff}
.assumption label{display:block;font-size:11px;font-weight:800;margin-bottom:5px;color:#53617c}
.assumption input{width:100%;border:1px solid #dce3ef;border-radius:8px;background:white;padding:8px;direction:ltr;text-align:center;font-variant-numeric:tabular-nums}
.btn-row{display:flex;gap:9px;align-items:center;flex-wrap:wrap}
.savebar{position:fixed;bottom:14px;left:50%;transform:translateX(-50%);width:min(600px,calc(100% - 26px));background:#162758;color:white;border-radius:15px;padding:12px 14px;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:10px;box-shadow:0 12px 40px #101d4490}
.savebar small{color:#c8d6fb;display:block}
.savebar .btn{flex-shrink:0}
.toast{position:fixed;bottom:92px;left:50%;transform:translateX(-50%);background:#192b52;color:white;padding:12px 18px;border-radius:13px;box-shadow:0 9px 30px #18223e40;z-index:40;max-width:calc(100% - 24px);text-align:center;font-size:12px}
.toast.bad{background:#9e332b}
.dialog-scrim{position:fixed;inset:0;background:#101a34a8;display:grid;place-items:center;z-index:30;padding:14px}
.dialog{background:var(--paper);border-radius:20px;padding:22px;width:min(560px,100%);max-height:min(90vh,760px);overflow-y:auto;box-shadow:0 20px 80px #0003}
.dialog h2{font-size:20px;margin:0 0 8px}
.dialog p{color:var(--muted);font-size:13px;margin:0 0 16px}
.dialog-section{padding:14px;border-radius:14px;background:#f7f9ff;border:1px solid var(--line);margin-bottom:12px}
.dialog-section h3{margin:0 0 5px;font-size:15px}
.dialog-section p{margin:0 0 10px;font-size:12px}
.invite-code{border:1px dashed #acbbe4;border-radius:10px;padding:8px;font-size:11px;direction:ltr;overflow-wrap:anywhere;background:#fff;max-height:64px;overflow:auto}
.projects-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:12px}
.project-card{border:1px solid var(--line);border-radius:13px;background:#fcfdff;padding:16px;text-align:right;min-height:118px}
.project-card:hover{border-color:#a7b6ff}
.project-card h3{margin:0 0 8px;font-size:16px}.project-card p{margin:0;color:var(--muted);font-size:12px}
.loading-screen{display:grid;place-content:center;min-height:78vh;text-align:center;color:#63718d}
.loading-orb{font-size:40px;color:var(--accent)}
.footer-note{color:var(--muted);font-size:11px;text-align:center;margin:25px auto}
.empty{border:1px dashed #cbd7ef;border-radius:14px;text-align:center;padding:35px 20px;background:#fafbff}
.empty h3{margin:5px 0}.empty p{color:var(--muted)}
@media (max-width:750px){
  .shell{padding-inline:12px}.top-inner{padding-inline:14px}.section-card{padding:15px}.stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}
  .stat-card{padding:13px}.stat-val{font-size:21px}.cities,.projects-grid{grid-template-columns:1fr}
  .section-head h2{font-size:17px}.compare-table th,.compare-table td{padding-inline:8px}
  .group-shortcut{grid-template-columns:1fr 1fr}.item-title{font-size:12px}.money-field{padding:8px 4px;font-size:13px}
}
@media (max-width:460px){
  .hero{margin-top:18px}.hero h1{font-size:23px}.brand-name{font-size:15px}.header-actions .btn{padding:8px 10px;font-size:11px}
  .section-head{flex-wrap:wrap}.detail-grid{grid-template-columns:1fr}.assumptions{grid-template-columns:repeat(2,minmax(0,1fr))}
  .group-shortcut{grid-template-columns:1fr}.compare-table th,.compare-table td{padding:9px 6px}
}
@media (prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}
body.dark{--bg:#111827;--paper:#1c2940;--ink:#edf2fc;--muted:#a4b4d2;--line:#39475f;--accent-soft:#293c70;--shadow:none;--accent:#7f96ff}
body.dark .stat-card.primary-stat{background:#233665;border-color:#344978}body.dark .stat-card.primary-stat .stat-val{color:#bfcfff}
body.dark .compare-table thead,body.dark .group-total,body.dark .details-row td,body.dark .detail-city,body.dark .details-inner,body.dark .assumption,body.dark .dialog-section,body.dark .shortcut,body.dark .city-panel,body.dark .empty,body.dark .project-card{background:#23314b}
body.dark .money-field,body.dark .text-field,body.dark .score-field,body.dark .assumption input,body.dark .invite-code{background:#17233a;color:#eef2ff}
body.dark .hint{color:#c0d1ff}body.dark .hint.warn{background:#543e28;color:#f5d5a9}
body.dark .tabs-wrap{background:#111827f5}
body.dark .savebar{background:#354d91}
.savebar[hidden]{display:none!important}

.response-card{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px;border:1px solid var(--line);border-radius:12px;margin-top:10px;background:var(--paper)}
.response-card strong{font-size:14px}
@media(max-width:520px){.response-card{align-items:flex-start;flex-direction:column}}