:root{--ink:#172033;--muted:#657084;--line:#e6eaf0;--bg:#f7f9fc;--card:#fff;--accent:#5b3df5;--accent2:#eeeaff;--max:1120px}
*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.55}a{color:inherit;text-decoration:none}.container{max-width:var(--max);margin:auto;padding:0 22px}
.site-header{background:#fff;border-bottom:1px solid var(--line)}.nav{height:72px;max-width:var(--max);margin:auto;padding:0 22px;display:flex;align-items:center;justify-content:space-between}.brand{font-weight:800;font-size:21px;display:flex;align-items:center;gap:9px}.brand span{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--accent);color:#fff}.nav nav{display:flex;gap:24px;color:var(--muted);font-weight:600}.nav nav a:hover{color:var(--ink)}
.hero{text-align:center;padding:76px 0 54px}.eyebrow{font-size:12px;font-weight:800;letter-spacing:.16em;color:var(--accent);margin-bottom:12px}.hero h1{font-size:clamp(40px,6vw,70px);line-height:1.03;letter-spacing:-.045em;margin:0}.hero h1 span{color:var(--accent)}.hero p,.page-head p{color:var(--muted);font-size:18px}.search{display:flex;max-width:720px;margin:30px auto 14px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:6px;box-shadow:0 8px 30px rgba(20,30,50,.06)}.search input{flex:1;min-width:0;border:0;outline:0;padding:14px;font-size:16px;background:transparent}.search button,.primary{border:0;background:var(--accent);color:#fff;font-weight:800;padding:13px 20px;border-radius:10px;cursor:pointer}.popular{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;color:var(--muted);font-size:14px}.popular a{background:#fff;border:1px solid var(--line);padding:6px 10px;border-radius:999px}
.section{padding:36px 0}.section.compact{padding-top:10px}.section-head{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:18px}.section-head h2{margin:0;font-size:25px}.section-head a{color:var(--accent);font-weight:700}.category-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.category-card,.calc-card,.side-card,.calculator-box,.trust{background:var(--card);border:1px solid var(--line);border-radius:16px}.category-card{padding:18px;display:flex;gap:12px;min-height:125px}.category-icon{font-size:27px}.category-card h3,.calc-card h3{margin:0 0 5px;font-size:17px}.category-card p,.calc-card p{margin:0;color:var(--muted);font-size:14px}.calculator-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.calc-card{padding:20px;display:flex;flex-direction:column;min-height:180px;transition:transform .15s,border-color .15s}.calc-card:hover{transform:translateY(-2px);border-color:#cfc7ff}.pill{display:inline-flex;align-self:flex-start;background:var(--accent2);color:var(--accent);font-size:11px;font-weight:800;border-radius:999px;padding:4px 8px;margin-bottom:10px}.use{margin-top:auto;color:var(--accent);font-weight:800;font-size:14px}.trust{margin:40px 0;padding:24px;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.trust div{display:flex;flex-direction:column}.trust strong{font-size:18px}.trust span,.muted{color:var(--muted)}.page-head{padding:55px 0 25px}.page-head h1{font-size:44px;letter-spacing:-.03em;margin:0}.page-head .search{margin-left:0;margin-right:0}.calc-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(260px,1fr);gap:22px;padding:38px 0 60px}.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:20px}.calc-title h1{font-size:42px;letter-spacing:-.035em;margin:5px 0}.calc-title p{color:var(--muted);font-size:17px}.calculator-box{padding:25px}.calculator-box label{display:block;font-weight:700;margin:0 0 17px}.input-wrap{display:flex;border:1px solid var(--line);border-radius:11px;background:#fff;margin-top:7px;overflow:hidden}.input-wrap input{width:100%;min-width:0;border:0;outline:0;padding:13px;font-size:16px}.input-wrap span{padding:13px;color:var(--muted);background:#f6f7fa}.secondary{border:1px solid var(--line);background:#fff;color:var(--ink);font-weight:700;padding:12px 16px;border-radius:10px;cursor:pointer;margin-left:7px}.result{margin-top:22px;padding:20px;border-radius:13px;background:var(--accent2);display:flex;flex-direction:column}.result span{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.08em;color:var(--accent)}.result strong{font-size:30px;margin:4px 0}.result small{color:var(--muted);margin-top:3px}.error{color:#b42318;font-size:14px;margin-top:10px}.side-card{padding:23px;align-self:start}.side-card h2{margin-top:0}.side-card h3{font-size:15px;margin-top:25px}.formula{background:var(--bg);padding:12px;border-radius:10px;font-family:ui-monospace,monospace;font-size:13px}footer{background:#111827;color:#c8ced8;margin-top:50px;padding:35px 0 15px}.footer-inner{display:flex;justify-content:space-between;gap:20px}.footer-inner strong{color:#fff;font-size:18px}.copyright{text-align:center;border-top:1px solid #273044;margin-top:25px;padding-top:15px;font-size:12px;color:#8e98aa}
.empty{background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px}@media(max-width:850px){.category-grid{grid-template-columns:repeat(2,1fr)}.calculator-grid{grid-template-columns:repeat(2,1fr)}.calc-layout{grid-template-columns:1fr}}@media(max-width:560px){.nav{height:auto;padding-top:14px;padding-bottom:14px;align-items:flex-start}.nav nav{gap:12px}.hero{padding-top:45px}.category-grid,.calculator-grid,.trust{grid-template-columns:1fr}.hero h1,.page-head h1,.calc-title h1{font-size:38px}.search button{padding:12px}.footer-inner{flex-direction:column}}