:root{
  --bg:#f3f6f8; --text:#111820; --muted:#6c7884; --card:rgba(255,255,255,.66);
  --card-strong:rgba(255,255,255,.86); --border:rgba(18,31,44,.10); --accent:#0f766e;
  --accent2:#1f9d8c; --accent-soft:rgba(15,118,110,.10); --success:#1b7f5b; --warning:#ad6a00;
  --danger:#a13b3b; --shadow:0 20px 60px rgba(23,38,52,.10); --blur:22px;
}
body.dark{
  --bg:#091015; --text:#eff7f6; --muted:#9aa9b4; --card:rgba(17,27,35,.62);
  --card-strong:rgba(19,30,38,.88); --border:rgba(238,255,252,.09); --accent:#47c8b8;
  --accent2:#6bd8ca; --accent-soft:rgba(71,200,184,.11); --success:#63d09d; --warning:#ffc566;
  --danger:#ff9292; --shadow:0 24px 70px rgba(0,0,0,.28);
}
*{box-sizing:border-box}
html{background:var(--bg);scroll-behavior:smooth}
body{
  margin:0; min-height:100%; background:var(--bg); color:var(--text);
  font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  transition:background .35s ease,color .35s ease; overflow-x:hidden;
}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid color-mix(in srgb,var(--accent) 35%,transparent);outline-offset:2px}
.ambient{position:fixed;border-radius:999px;filter:blur(80px);opacity:.28;pointer-events:none;z-index:0}
.ambient-a{width:360px;height:360px;background:var(--accent);right:-160px;top:-120px}
.ambient-b{width:300px;height:300px;background:#7a9fd3;left:-160px;bottom:80px;opacity:.18}
.app-shell{position:relative;z-index:1;max-width:980px;margin:0 auto;padding:20px 18px 110px}
.glass{
  background:var(--card); border:1px solid var(--border); box-shadow:var(--shadow);
  backdrop-filter:blur(var(--blur)) saturate(125%); -webkit-backdrop-filter:blur(var(--blur)) saturate(125%);
}
.topbar{border-radius:24px;padding:12px 14px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:10px;z-index:20}
.brand{display:flex;align-items:center;gap:11px;border:0;background:transparent;color:inherit;text-align:left;padding:0}
.brand-mark{
  width:42px;height:42px;border-radius:14px;background:linear-gradient(145deg,var(--accent),var(--accent2));
  color:white;display:grid;place-items:center;font-weight:800;box-shadow:0 12px 30px color-mix(in srgb,var(--accent) 25%,transparent)
}
.brand strong{display:block;font-size:17px;letter-spacing:-.02em}
.brand small{display:block;color:var(--muted);font-size:12px;margin-top:1px}
.icon-btn{width:44px;height:44px;border-radius:14px;border:1px solid var(--border);background:var(--card-strong);color:var(--text)}
.view{padding:26px 0 6px;animation:enter .38s cubic-bezier(.2,.9,.2,1)}
@keyframes enter{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.hero{padding:30px;border-radius:30px;overflow:hidden;position:relative}
.eyebrow{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-weight:700}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(34px,7vw,64px);line-height:.98;letter-spacing:-.055em;margin-bottom:16px;max-width:720px}
h2{font-size:clamp(26px,4.6vw,42px);letter-spacing:-.04em;margin-bottom:10px}
h3{font-size:18px;letter-spacing:-.02em;margin-bottom:7px}
.lead{font-size:17px;line-height:1.55;color:var(--muted);max-width:670px}
.route-art{margin:24px 0 4px;width:100%;height:110px}
.route-art path.base{stroke:var(--border)}
.route-art path.live{stroke:var(--accent);stroke-dasharray:10 12;animation:dash 8s linear infinite}
@keyframes dash{to{stroke-dashoffset:-88}}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.btn{min-height:48px;border:0;border-radius:16px;padding:12px 17px;font-weight:700;transition:.22s ease}
.btn:active{transform:scale(.985)}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:white;box-shadow:0 12px 30px color-mix(in srgb,var(--accent) 22%,transparent)}
.btn-secondary{background:var(--card-strong);color:var(--text);border:1px solid var(--border)}
.grid{display:grid;gap:15px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.card{border-radius:24px;padding:20px;background:var(--card);border:1px solid var(--border);box-shadow:var(--shadow);backdrop-filter:blur(var(--blur))}
.card.clickable{transition:transform .25s ease,border-color .25s ease}.card.clickable:hover{transform:translateY(-2px);border-color:color-mix(in srgb,var(--accent) 32%,var(--border))}
.stat{font-size:30px;font-weight:800;letter-spacing:-.045em}
.muted{color:var(--muted)}.tiny{font-size:12px}.small{font-size:14px}.strong{font-weight:750}
.progress{height:10px;background:var(--border);border-radius:999px;overflow:hidden}
.progress>span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .65s cubic-bezier(.2,.9,.2,1)}
.route-list{position:relative;padding-left:28px;display:grid;gap:12px}
.route-list:before{content:"";position:absolute;left:9px;top:18px;bottom:18px;width:1px;background:var(--border)}
.route-step{position:relative;border-radius:20px;padding:17px 18px;background:var(--card);border:1px solid var(--border)}
.route-step:before{content:"";position:absolute;width:12px;height:12px;border-radius:50%;left:-25px;top:21px;background:var(--border);box-shadow:0 0 0 5px var(--bg)}
.route-step.done:before,.route-step.current:before{background:var(--accent)}
.route-step.current{border-color:color-mix(in srgb,var(--accent) 60%,var(--border));background:var(--accent-soft)}
.route-step.locked{opacity:.58}
.chip{display:inline-flex;align-items:center;gap:7px;padding:7px 10px;border-radius:999px;border:1px solid var(--border);background:var(--card-strong);font-size:12px}
.chip.success{color:var(--success)}.chip.warning{color:var(--warning)}.chip.danger{color:var(--danger)}
.form{display:grid;gap:14px}
label span.label{display:block;font-size:13px;font-weight:700;margin-bottom:7px}
input,select,textarea{
  width:100%;border:1px solid var(--border);background:var(--card-strong);color:var(--text);
  border-radius:16px;padding:13px 14px;min-height:48px;font-size:16px
}
textarea{min-height:112px;resize:vertical}
.result{padding:18px;border-radius:20px;background:var(--accent-soft);border:1px solid color-mix(in srgb,var(--accent) 25%,var(--border))}
.result-value{font-size:34px;font-weight:850;letter-spacing:-.05em;margin:4px 0}
.tool-tabs{display:flex;gap:8px;overflow:auto;padding-bottom:4px;margin-bottom:14px}
.tool-tabs button{white-space:nowrap;border:1px solid var(--border);background:var(--card-strong);color:var(--text);border-radius:999px;padding:10px 13px}
.tool-tabs button.active{background:var(--accent);color:white;border-color:transparent}
.bottom-nav{
  position:fixed;z-index:30;left:50%;bottom:14px;transform:translateX(-50%);width:min(720px,calc(100% - 28px));
  border-radius:24px;padding:7px;display:grid;grid-template-columns:repeat(5,1fr);gap:3px
}
.nav-item{border:0;background:transparent;color:var(--muted);border-radius:17px;padding:8px 4px;min-height:56px;display:grid;place-items:center;gap:2px;transition:.22s}
.nav-item span{font-size:18px;line-height:1}.nav-item small{font-size:10px}.nav-item.active{background:var(--accent-soft);color:var(--accent)}
.disclaimer{font-size:12px;line-height:1.5;color:var(--muted);padding:14px 16px;border-radius:16px;border:1px solid var(--border);background:var(--card)}
.toast{position:fixed;z-index:50;top:86px;left:50%;transform:translate(-50%,-12px);opacity:0;pointer-events:none;border-radius:16px;padding:12px 16px;transition:.25s}
.toast.show{opacity:1;transform:translate(-50%,0)}
.kpi-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.kpi{padding:16px;border-radius:20px;background:var(--card);border:1px solid var(--border)}
.kpi b{display:block;font-size:22px;margin-top:5px}
.sep{height:1px;background:var(--border);margin:16px 0}
@media(max-width:700px){
  .app-shell{padding-left:14px;padding-right:14px}.hero{padding:23px}.grid-2,.grid-3,.kpi-row{grid-template-columns:1fr}.route-art{height:88px}
  .brand small{display:none}.bottom-nav{bottom:10px}.nav-item small{font-size:9px}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}