:root{
  --bg:#f6f7fb;
  --surface:#ffffff;
  --surface-2:#eef4ff;
  --text:#172033;
  --muted:#667085;
  --primary:#1d4ed8;
  --primary-dark:#163ca6;
  --accent:#f59e0b;
  --success:#16803c;
  --danger:#c2410c;
  --border:#dbe3ef;
  --shadow:0 18px 45px rgba(29,78,216,.10);
  --radius:18px;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  line-height:1.65;
}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
.container{width:min(calc(100% - 32px),var(--max));margin-inline:auto}
.skip-link{position:absolute;left:-9999px;top:auto}
.skip-link:focus{left:16px;top:16px;background:#fff;padding:10px 14px;z-index:999;border-radius:8px}
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(219,227,239,.8);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:24px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);font-weight:800;text-decoration:none}
.brand-mark{
  width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;color:white;
  background:linear-gradient(135deg,var(--primary),#60a5fa);
  box-shadow:0 8px 20px rgba(29,78,216,.25)
}
.brand small{display:block;font-weight:600;color:var(--muted);font-size:.72rem}
.nav-links{display:flex;gap:20px;align-items:center}
.nav-links a{color:var(--text);font-weight:650;font-size:.94rem}
.nav-links a:hover{text-decoration:none;color:var(--primary)}
.menu-toggle{display:none;border:1px solid var(--border);background:#fff;padding:9px 12px;border-radius:10px;font-size:1.2rem}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 18px;border-radius:12px;border:1px solid transparent;
  font-weight:750;cursor:pointer;text-decoration:none;transition:.2s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-secondary{background:#fff;color:var(--primary);border-color:var(--border)}
.btn-success{background:#16a34a;color:#fff}
.btn-sm{padding:9px 13px;font-size:.9rem}
.hero{
  padding:84px 0 64px;
  background:
    radial-gradient(circle at 85% 15%,rgba(96,165,250,.25),transparent 30%),
    linear-gradient(180deg,#f8fbff 0%,#f6f7fb 100%);
}
.hero-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;gap:8px;align-items:center;background:#eaf2ff;color:var(--primary);padding:7px 12px;border-radius:999px;font-weight:800;font-size:.82rem}
.hero h1{font-size:clamp(2.3rem,5vw,4.6rem);line-height:1.02;letter-spacing:-.05em;margin:18px 0 20px}
.hero p{font-size:1.1rem;color:var(--muted);max-width:680px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero-card{
  background:var(--surface);border:1px solid var(--border);border-radius:24px;
  padding:24px;box-shadow:var(--shadow)
}
.hero-card h3{margin-top:0}
.metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:18px}
.metric{padding:16px;border:1px solid var(--border);border-radius:14px;background:#fbfdff}
.metric strong{display:block;font-size:1.35rem}
.metric span{font-size:.86rem;color:var(--muted)}
.section{padding:72px 0}
.section-tight{padding:46px 0}
.section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:28px}
.section-head h2,.page-hero h1{margin:0;letter-spacing:-.035em}
.section-head p{color:var(--muted);max-width:650px;margin:0}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:24px;box-shadow:0 8px 24px rgba(15,23,42,.04)
}
.card h3{margin-top:0;margin-bottom:10px}
.card p{color:var(--muted)}
.icon-box{
  width:48px;height:48px;border-radius:14px;background:var(--surface-2);
  display:grid;place-items:center;color:var(--primary);font-size:1.35rem;margin-bottom:16px
}
.tool-card{display:flex;flex-direction:column}
.tool-card .btn{margin-top:auto}
.badge{display:inline-block;padding:5px 10px;border-radius:999px;background:#ecfdf3;color:var(--success);font-size:.78rem;font-weight:800}
.page-hero{padding:58px 0 40px;background:linear-gradient(180deg,#f8fbff,#f6f7fb)}
.page-hero p{color:var(--muted);max-width:760px}
.tool-layout{display:grid;grid-template-columns:1fr .75fr;gap:24px;align-items:start}
.form-card,.result-card{
  background:#fff;border:1px solid var(--border);border-radius:20px;padding:26px;box-shadow:var(--shadow)
}
label{display:block;font-weight:750;margin-bottom:7px}
input,select,textarea{
  width:100%;padding:13px 14px;border:1px solid var(--border);border-radius:11px;
  background:#fff;color:var(--text);font:inherit;outline:none
}
input:focus,select:focus,textarea:focus{border-color:#7aa7ff;box-shadow:0 0 0 4px rgba(29,78,216,.08)}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.form-group{margin-bottom:16px}
.result-value{font-size:2rem;font-weight:850;color:var(--primary);letter-spacing:-.03em}
.result-list{display:grid;gap:12px;margin-top:18px}
.result-row{display:flex;justify-content:space-between;gap:20px;padding:12px 0;border-bottom:1px dashed var(--border)}
.result-row:last-child{border-bottom:0}
.notice{padding:14px 16px;border-left:4px solid var(--accent);background:#fffbeb;border-radius:10px;color:#7c4a03}
.property-card{overflow:hidden;padding:0}
.property-visual{
  min-height:180px;padding:22px;display:flex;align-items:end;color:#fff;
  background:
    linear-gradient(0deg,rgba(15,23,42,.78),rgba(15,23,42,.1)),
    linear-gradient(135deg,#1d4ed8,#93c5fd);
}
.property-content{padding:20px}
.property-meta{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0 16px}
.property-meta span{background:#f1f5f9;padding:6px 9px;border-radius:8px;font-size:.82rem;color:#475569}
.list-clean{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.list-clean li{padding-left:28px;position:relative}
.list-clean li::before{content:"✓";position:absolute;left:0;color:var(--success);font-weight:900}
.cta{
  padding:34px;border-radius:24px;background:linear-gradient(135deg,#172033,#1d4ed8);
  color:#fff;display:flex;align-items:center;justify-content:space-between;gap:28px
}
.cta p{color:#dbeafe;margin-bottom:0}
.faq{display:grid;gap:12px}
details{background:#fff;border:1px solid var(--border);border-radius:14px;padding:16px 18px}
summary{cursor:pointer;font-weight:800}
details p{color:var(--muted)}
.table-wrap{overflow:auto;border:1px solid var(--border);border-radius:14px}
table{width:100%;border-collapse:collapse;background:#fff;min-width:620px}
th,td{padding:14px 16px;border-bottom:1px solid var(--border);text-align:left}
th{background:#f8fafc}
footer{background:#0f172a;color:#cbd5e1;padding:50px 0 20px;margin-top:60px}
.footer-grid{display:grid;grid-template-columns:1.3fr repeat(3,.7fr);gap:28px}
footer h4{color:#fff;margin-top:0}
footer a{color:#cbd5e1}
.footer-bottom{border-top:1px solid #243047;margin-top:30px;padding-top:18px;font-size:.9rem;color:#94a3b8}
.floating-wa{
  position:fixed;right:18px;bottom:18px;z-index:60;background:#16a34a;color:#fff;
  width:56px;height:56px;border-radius:50%;display:grid;place-items:center;font-size:1.45rem;
  box-shadow:0 12px 30px rgba(22,163,74,.32);text-decoration:none
}
.floating-wa:hover{text-decoration:none;transform:translateY(-2px)}
.article{max-width:860px}
.article h2{margin-top:40px}
.article p,.article li{color:#475569}
.kicker{color:var(--primary);font-weight:800;text-transform:uppercase;letter-spacing:.08em;font-size:.78rem}
.filter-bar{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:24px}
.filter-bar select,.filter-bar input{max-width:260px}
.hidden{display:none!important}
@media (max-width:900px){
  .hero-grid,.tool-layout,.grid-3,.grid-2,.footer-grid{grid-template-columns:1fr}
  .nav-links{display:none;position:absolute;left:16px;right:16px;top:72px;background:#fff;border:1px solid var(--border);border-radius:14px;padding:16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
  .nav-links.open{display:flex}
  .menu-toggle{display:block}
  .hero{padding-top:54px}
  .cta{align-items:flex-start;flex-direction:column}
}
@media (max-width:620px){
  .container{width:min(calc(100% - 22px),var(--max))}
  .hero h1{font-size:2.55rem}
  .form-grid,.metric-grid{grid-template-columns:1fr}
  .section{padding:52px 0}
  .section-head{align-items:start;flex-direction:column}
}