:root{--bg:#f6f8fb;--surface:#fff;--ink:#172033;--muted:#6d7789;--line:#e5e9f0;--primary:#2368f3;--primary2:#144cc1;--dark:#101828;--radius:20px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--ink);line-height:1.55}a{text-decoration:none;color:inherit}.container{width:min(1120px,calc(100% - 32px));margin:auto}.site-header{background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10;backdrop-filter:blur(10px)}.nav{display:flex;align-items:center;justify-content:space-between;height:72px}.brand{display:flex;align-items:center;gap:8px;font-weight:800;font-size:21px}.brand small{color:var(--primary);font-weight:700}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background:var(--primary);color:#fff}nav{display:flex;gap:25px;color:#596477;font-size:14px}nav a:hover{color:var(--ink)}.hero{background:radial-gradient(circle at 80% 30%,#dbe8ff,transparent 35%),linear-gradient(135deg,#eef4ff,#f8fbff);padding:88px 0 76px;border-bottom:1px solid var(--line)}.hero-inner{display:grid;grid-template-columns:1.25fr .75fr;gap:60px;align-items:center}.eyebrow{font-size:12px;letter-spacing:.14em;font-weight:800;color:var(--primary)}h1{font-size:52px;line-height:1.08;margin:14px 0}h1 strong{color:var(--primary)}h2{font-size:32px;line-height:1.15;margin:8px 0}p{margin:0 0 18px;color:var(--muted)}.hero p{font-size:18px;max-width:600px}.hero-actions{display:flex;gap:12px;margin-top:26px}.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:12px;padding:12px 18px;font-weight:700;cursor:pointer}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary2)}.btn-light{background:#fff;border:1px solid var(--line)}.hero-card{background:#fff;border:1px solid var(--line);box-shadow:0 22px 50px rgba(35,104,243,.12);border-radius:28px;padding:32px;display:flex;flex-direction:column;gap:8px}.hero-card .mini-icon{width:62px;height:62px;border-radius:20px;background:#eef4ff;color:var(--primary);font-weight:900;font-size:28px;display:grid;place-items:center}.mini-title{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.12em}.section{padding:72px 0}.section-head{display:flex;align-items:end;justify-content:space-between;margin-bottom:24px}.tool-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.tool-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;min-height:220px;display:flex;flex-direction:column}.tool-card:hover{box-shadow:0 12px 30px rgba(16,24,40,.07);transform:translateY(-2px)}.tool-icon{width:48px;height:48px;background:#eef4ff;border-radius:15px;display:grid;place-items:center;color:var(--primary);font-weight:800;margin-bottom:18px}.tool-card h3{margin:0 0 8px}.tool-card p{font-size:14px;flex:1}.tool-card a{color:var(--primary);font-weight:800}.info-band{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}.info-band>div,.info-band>p{background:#fff;padding:32px;border:1px solid var(--line);border-radius:20px}.narrow{max-width:780px}.lead{font-size:18px}.calculator-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:0 18px 40px rgba(16,24,40,.06)}.field{display:flex;flex-direction:column;gap:7px;margin-bottom:18px}.field label{font-size:13px;font-weight:700}.field input,.field select{height:48px;border:1px solid #cfd6e1;border-radius:12px;padding:0 13px;font:inherit}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:14px}.result-box{margin-top:18px;padding:18px;background:#eef7ff;border-radius:15px;font-size:20px;font-weight:800;color:#1245a0}.site-footer{background:#111b2e;color:#c9d2df;margin-top:50px;padding:45px 0 20px}.site-footer p{color:#94a3b8}.footer-grid{display:flex;justify-content:space-between;gap:40px}.footer-grid a{margin-right:20px;color:#c9d2df;font-size:14px}.copyright{padding-top:28px;margin-top:28px;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:#7f8da1}.muted{color:var(--muted);font-size:13px}@media(max-width:900px){.hero-inner,.info-band{grid-template-columns:1fr}.tool-grid{grid-template-columns:repeat(2,1fr)}nav{display:none}}@media(max-width:600px){h1{font-size:40px}.tool-grid{grid-template-columns:1fr}.two-col{grid-template-columns:1fr}.footer-grid{flex-direction:column}.section{padding:52px 0}}