:root{
  --bg:#07111f;--panel:#0d1b2d;--panel2:#10233a;--text:#eef6ff;--muted:#a9bdd2;
  --accent:#56d6b1;--accent2:#7cb8ff;--line:#203b58;--bad:#ff9b9b;--good:#7be0ba;
  --shadow:0 18px 50px rgba(0,0,0,.28)
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:linear-gradient(180deg,#07111f 0%,#0a1626 100%);color:var(--text);line-height:1.5}
a{color:var(--accent2);text-decoration:none} a:hover{text-decoration:underline}
.wrap{max-width:1180px;margin:auto;padding:0 22px}
header{border-bottom:1px solid var(--line);background:rgba(7,17,31,.9);position:sticky;top:0;z-index:5;backdrop-filter:blur(12px)}
.nav{min-height:68px;display:flex;align-items:center;gap:22px}.brand{font-weight:900;font-size:1.25rem;color:white;margin-right:auto}
.nav a{color:#dbeaff;font-weight:700}.nav .cta{background:var(--accent);color:#062018;padding:10px 14px;border-radius:10px}
.hero{padding:70px 0 34px}.eyebrow{color:var(--accent);font-weight:900;letter-spacing:.08em;text-transform:uppercase;font-size:.78rem}
h1{font-size:clamp(2.25rem,6vw,4.7rem);line-height:1.02;margin:.35rem 0 1rem;letter-spacing:-.045em;max-width:950px}
h2{font-size:1.65rem;margin:0 0 14px} h3{margin:0 0 10px}
.lede{font-size:1.16rem;color:var(--muted);max-width:780px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:linear-gradient(180deg,var(--panel),#0b1929);border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:var(--shadow)}
.section{padding:28px 0}.fields{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{display:block;color:#d9e8f7;font-weight:800;font-size:.9rem}
input,select{width:100%;margin-top:6px;background:#071421;color:white;border:1px solid #2b4a69;border-radius:10px;padding:12px 12px;font-size:1rem}
small,.muted{color:var(--muted)}.full{grid-column:1/-1}
button{border:0;border-radius:11px;padding:13px 18px;font-weight:900;font-size:.96rem;cursor:pointer}
.primary{background:var(--accent);color:#05251c}.secondary{background:#18314d;color:white;border:1px solid #2d5074}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.results{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:18px}
.result{background:#081624;border:1px solid var(--line);border-radius:14px;padding:16px}.result b{display:block;font-size:1.55rem;margin-top:5px}
.good{color:var(--good)}.bad{color:var(--bad)}
table{width:100%;border-collapse:collapse;margin-top:12px}th,td{padding:12px;border-bottom:1px solid var(--line);text-align:right}th:first-child,td:first-child{text-align:left}
.note{padding:14px 16px;border-left:3px solid var(--accent2);background:#0b1b2d;border-radius:8px;color:#c7d8e9}
.tool-card h3{font-size:1.25rem}.tool-card p{color:var(--muted)}.tool-card .button{display:inline-block;background:var(--accent);color:#062018;font-weight:900;padding:10px 14px;border-radius:10px}
footer{margin-top:50px;border-top:1px solid var(--line);padding:28px 0 42px;color:var(--muted)}
.content{max-width:820px}.content h1{font-size:2.8rem}.content h2{margin-top:30px}.content p,.content li{color:#c9d9e8}
@media(max-width:850px){.grid2,.grid3,.fields,.results{grid-template-columns:1fr}.nav{flex-wrap:wrap;padding:12px 0}.nav .brand{width:100%}.hero{padding-top:42px}h1{font-size:2.65rem}}