:root{--bg:#f7f8fb;--card:#ffffff;--ink:#172033;--muted:#5d687c;--line:#dde3ee;--accent:#315eea;--soft:#eaf0ff}
*{box-sizing:border-box}body{margin:0;font-family:Inter,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.6}.site-header{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:20px 6%;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:2}.logo{font-weight:800;font-size:1.25rem;color:var(--ink);text-decoration:none}nav{display:flex;gap:16px;flex-wrap:wrap}nav a,.footer-links a{color:var(--accent);text-decoration:none;font-weight:650}.hero{padding:70px 6% 40px;display:grid;grid-template-columns:1.2fr .8fr;gap:30px;align-items:center}.hero h1{font-size:clamp(2.2rem,5vw,4.4rem);line-height:1.05;margin:0 0 18px}.hero p{font-size:1.15rem;color:var(--muted);max-width:680px}.hero-card,.card,.tool-card,.calculator{background:var(--card);border:1px solid var(--line);border-radius:24px;box-shadow:0 12px 30px rgba(23,32,51,.06)}.hero-card{padding:28px}.section{padding:38px 6%}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.tool-card{padding:22px;text-decoration:none;color:var(--ink);transition:.15s transform,.15s box-shadow}.tool-card:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(23,32,51,.09)}.tool-card p{color:var(--muted);margin-bottom:0}.pill{display:inline-block;padding:7px 12px;background:var(--soft);color:var(--accent);border-radius:999px;font-weight:700;font-size:.85rem}.page{max-width:980px;margin:0 auto;padding:54px 6%}.page h1{font-size:clamp(2rem,4vw,3.4rem);line-height:1.1}.calculator{padding:24px;margin:24px 0}.calc-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}label{font-weight:700}input,select,textarea{width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:14px;font:inherit;margin-top:6px}button{border:0;background:var(--accent);color:white;padding:13px 18px;border-radius:14px;font-weight:800;cursor:pointer;margin-top:16px}.result{margin-top:18px;padding:16px;background:var(--soft);border-radius:16px;font-weight:800}.content{background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px;margin-top:24px}.related{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:24px}.related a{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;text-decoration:none;color:var(--accent);font-weight:700}footer{padding:34px 6%;border-top:1px solid var(--line);color:var(--muted)}.footer-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:12px}@media(max-width:800px){.hero{grid-template-columns:1fr}.grid,.related,.calc-grid{grid-template-columns:1fr}.site-header{align-items:flex-start;flex-direction:column}}