:root{--navy:#0f2747;--navy2:#16385f;--gold:#d7a83d;--bg:#f5f7fa;--card:#fff;--text:#142033;--muted:#687588;--line:#e4e9ef;--shadow:0 12px 30px rgba(15,39,71,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.55}a{text-decoration:none;color:inherit}.container{width:min(1120px,calc(100% - 36px));margin:auto}
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.nav{height:76px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;gap:11px;align-items:center;font-size:11px;line-height:1.1;letter-spacing:.09em;color:var(--muted)}.brand b{color:var(--navy);font-size:15px}.brand-mark{width:38px;height:38px;border-radius:10px;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:800;font-size:13px;box-shadow:0 6px 15px rgba(15,39,71,.18)}nav{display:flex;gap:28px;font-size:14px;color:#4f5e72}nav a:hover{color:var(--navy)}
.hero{background:linear-gradient(135deg,#0f2747 0%,#16385f 70%,#1e466f 100%);color:#fff;padding:82px 0 76px;position:relative;overflow:hidden}.hero:after{content:"";position:absolute;width:360px;height:360px;border:1px solid rgba(255,255,255,.12);border-radius:50%;right:-100px;top:-150px}.hero-inner{position:relative;z-index:1;max-width:860px}.eyebrow{font-size:11px;font-weight:800;letter-spacing:.16em;color:var(--gold);margin-bottom:9px}.hero h1{font-size:clamp(40px,6vw,68px);line-height:1.03;margin:0 0 20px;letter-spacing:-.04em}.hero h1 span{color:#dbe7f3}.hero p{max-width:640px;color:#cbd8e7;font-size:18px;margin:0 0 28px}.search-wrap{background:#fff;border-radius:14px;padding:0 18px;display:flex;align-items:center;max-width:700px;box-shadow:0 16px 35px rgba(0,0,0,.16)}.search-wrap span{font-size:28px;color:#8290a0}.search-wrap input{border:0;outline:0;width:100%;padding:19px 12px;font-size:16px;color:var(--text)}.search-results{display:none;background:#fff;color:var(--text);max-width:700px;margin-top:8px;border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}.search-results a{display:block;padding:12px 16px;border-bottom:1px solid var(--line)}.search-results a:hover{background:#f4f7fa}
.section{padding:72px 0}.section.alt{background:#edf2f6}.section-heading{display:flex;justify-content:space-between;align-items:end;margin-bottom:28px}.section-heading h2{font-size:31px;line-height:1.1;margin:0;letter-spacing:-.03em}.section-heading>p{color:var(--muted);margin:0}.category-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.category-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:22px 17px;min-height:174px;display:flex;flex-direction:column;justify-content:space-between;box-shadow:0 7px 18px rgba(15,39,71,.045);transition:.2s}.category-card:hover,.tool-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#ccd6e1}.cat-icon{font-size:28px}.category-card h3{font-size:15px;margin:10px 0 5px;color:var(--navy);letter-spacing:.04em}.category-card p{font-size:12px;color:var(--muted);margin:0}.arrow{align-self:flex-end;color:var(--gold);font-weight:800}.tool-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.tool-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:19px;min-height:150px;display:flex;gap:13px;align-items:flex-start;position:relative;transition:.2s}.tool-icon{width:40px;height:40px;display:grid;place-items:center;border-radius:11px;background:#f0f4f8;color:var(--navy);font-size:20px;flex:0 0 40px}.tool-card h3{font-size:15px;margin:2px 0 5px;color:var(--navy)}.tool-card p{font-size:12px;color:var(--muted);margin:0}.disabled-card{opacity:.65;cursor:not-allowed}.soon{position:absolute;right:13px;top:13px;font-size:9px;font-weight:800;letter-spacing:.08em;background:#eef1f4;color:#657387;padding:4px 7px;border-radius:99px}.cta-box{background:var(--navy);color:#fff;border-radius:20px;padding:38px 42px;display:flex;justify-content:space-between;align-items:center;gap:30px}.cta-box h2{margin:0 0 7px;font-size:30px}.cta-box p{margin:0;color:#cbd8e7}.btn{background:var(--gold);color:#18283b;font-weight:800;padding:13px 19px;border-radius:10px;white-space:nowrap}.footer{background:#0b1d33;color:#c5d0dd;padding:48px 0 20px}.footer-inner{display:flex;justify-content:space-between;gap:30px}.footer strong{color:#fff;letter-spacing:.06em}.footer p{color:#8291a3;font-size:13px}.footer-links{display:flex;gap:20px;font-size:13px}.footer-links a:hover{color:#fff}.copyright{border-top:1px solid rgba(255,255,255,.1);margin-top:28px;padding-top:18px;font-size:11px;color:#748499}
.page{padding:65px 0}.article{background:#fff;border:1px solid var(--line);border-radius:18px;padding:38px;box-shadow:var(--shadow);max-width:850px;margin:auto}.article h1{font-size:38px;margin-top:0;color:var(--navy)}.article h2{margin-top:30px;color:var(--navy)}.article p,.article li{color:#536174}.back{display:inline-block;color:var(--navy);font-weight:700;margin-bottom:18px}
.tool-page{padding:55px 0}.tool-shell{max-width:780px;margin:auto}.tool-head{margin-bottom:24px}.tool-head h1{font-size:38px;line-height:1.1;margin:0 0 8px;color:var(--navy)}.tool-head p{color:var(--muted)}.calculator-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:var(--shadow)}.field{margin-bottom:17px}.field label{display:block;font-size:13px;font-weight:700;margin-bottom:7px;color:#405067}.field input,.field select{width:100%;border:1px solid #d5dde6;border-radius:10px;padding:12px 13px;font-size:15px;outline:none;background:#fff}.field input:focus,.field select:focus{border-color:#6f8eaf;box-shadow:0 0 0 3px rgba(56,92,130,.1)}.row{display:grid;grid-template-columns:1fr 1fr;gap:15px}.calc-btn{border:0;background:var(--navy);color:#fff;padding:13px 19px;border-radius:10px;font-weight:800;cursor:pointer;font-size:14px}.calc-btn:hover{background:var(--navy2)}.result{margin-top:22px;background:#f1f5f8;border:1px solid #dce4ec;border-radius:12px;padding:18px}.result .big{font-size:27px;font-weight:850;color:var(--navy)}.note{font-size:12px;color:#738095;margin-top:7px}.tool-content{margin-top:30px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px}.tool-content h2{color:var(--navy);font-size:22px}.tool-content p,.tool-content li{color:#59687b}
@media(max-width:900px){.category-grid{grid-template-columns:repeat(2,1fr)}.tool-grid{grid-template-columns:repeat(2,1fr)}nav{display:none}.hero{padding:62px 0}.cta-box{flex-direction:column;align-items:flex-start}}
@media(max-width:600px){.container{width:min(100% - 24px,1120px)}.category-grid,.tool-grid{grid-template-columns:1fr}.section{padding:52px 0}.section-heading{display:block}.section-heading>p{margin-top:8px}.hero h1{font-size:43px}.hero p{font-size:16px}.article{padding:24px}.tool-page{padding:38px 0}.tool-head h1{font-size:31px}.row{grid-template-columns:1fr}.footer-inner{display:block}.footer-links{flex-wrap:wrap;margin-top:24px}}