*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text);line-height:1.6}body{--bg:#f7f8fc;--card:#fff;--text:#111827;--muted:#667085;--border:#e5e7eb;--accent:#5b5bd6;--accent2:#7c3aed;--soft:#eef2ff;--shadow:0 12px 35px rgba(15,23,42,.08)}body.dark{--bg:#0b1020;--card:#121a2b;--text:#f3f4f6;--muted:#a7b0c2;--border:#263247;--soft:#18223a;--shadow:0 15px 40px rgba(0,0,0,.25)}a{color:inherit;text-decoration:none}.container{width:min(1120px,calc(100% - 32px));margin:auto}.site-header{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.nav{height:70px;display:flex;align-items:center;gap:30px}.brand{display:flex;align-items:center;gap:10px;font-weight:850;font-size:1.25rem}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;box-shadow:0 8px 20px rgba(91,91,214,.25)}nav{display:flex;gap:22px;flex:1}nav a{color:var(--muted);font-weight:650}.nav-actions{display:flex;gap:8px}.icon-btn,.btn{border:1px solid var(--border);background:var(--card);color:var(--text);border-radius:12px;padding:9px 13px;cursor:pointer;font-weight:700}.btn{background:var(--accent);color:white;border-color:var(--accent);padding:12px 17px}.btn.secondary{background:var(--soft);color:var(--text);border-color:transparent}.hero{padding:70px 0 40px}.hero-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:28px;align-items:center}.eyebrow{color:var(--accent);font-weight:800}.hero h1{font-size:clamp(2.2rem,5vw,4.5rem);line-height:1.05;margin:10px 0 18px}.hero p{font-size:1.12rem;color:var(--muted);max-width:650px}.hero-card{background:var(--card);border:1px solid var(--border);border-radius:24px;padding:25px;box-shadow:var(--shadow)}.ad{min-height:90px;border:1px dashed var(--border);border-radius:16px;display:grid;place-items:center;color:var(--muted);margin:28px 0}.section{padding:30px 0 70px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:15px;margin-bottom:20px}.section h2{margin:0;font-size:1.8rem}.search{width:min(420px,100%);padding:13px 15px;border:1px solid var(--border);border-radius:13px;background:var(--card);color:var(--text)}.filters{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 20px}.chip{padding:8px 12px;border:1px solid var(--border);background:var(--card);border-radius:999px;cursor:pointer;color:var(--muted)}.chip.active{background:var(--soft);color:var(--accent);border-color:transparent}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.calc-card{position:relative;background:var(--card);border:1px solid var(--border);border-radius:18px;padding:20px;transition:.2s}.calc-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.calc-icon{font-size:1.7rem}.calc-card h3{margin:8px 0 4px}.calc-card p{color:var(--muted);margin:0 0 15px}.fav{position:absolute;top:14px;inset-inline-end:14px;border:0;background:transparent;color:var(--muted);font-size:1.25rem;cursor:pointer}.form-card{max-width:760px;margin:35px auto;background:var(--card);border:1px solid var(--border);border-radius:22px;padding:25px;box-shadow:var(--shadow)}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.field{display:flex;flex-direction:column;gap:6px}.field label{font-weight:700}.field input,.field select{width:100%;padding:12px;border:1px solid var(--border);border-radius:11px;background:var(--bg);color:var(--text);font-size:1rem}.result{margin-top:18px;padding:17px;border-radius:14px;background:var(--soft);font-size:1.12rem}.result strong{font-size:1.35rem;color:var(--accent)}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.back{color:var(--accent);font-weight:700}.empty{text-align:center;padding:40px;color:var(--muted)}.footer{border-top:1px solid var(--border);padding:35px 0;color:var(--muted)}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:25px}.footer-grid>div{display:flex;flex-direction:column;gap:6px}.footer-brand{color:var(--text)}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px}.stat{background:var(--soft);padding:16px;border-radius:15px}.stat b{display:block;font-size:1.5rem;color:var(--accent)}@media(max-width:800px){.hero-grid,.grid,.footer-grid{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.nav{gap:12px}.nav nav{display:none}.hero{padding-top:45px}.section-head{align-items:stretch;flex-direction:column}.stats{grid-template-columns:1fr 1fr}}@media(max-width:480px){.container{width:min(100% - 22px,1120px)}.stats{grid-template-columns:1fr}.nav{height:62px}.hero h1{font-size:2.4rem}}