:root{color-scheme:light;--bg:#f6f8fb;--surface:#ffffff;--surface-muted:#edf2f7;--text:#18212f;--muted:#566477;--line:#d8e0ea;--accent:#0f766e;--accent-dark:#115e59;--focus:rgba(15,118,110,0.22)}*{box-sizing:border-box}html{background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}body{margin:0}a{color:inherit}.site-header{align-items:center;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);display:flex;gap:24px;justify-content:space-between;padding:16px clamp(16px,4vw,48px);position:-webkit-sticky;position:sticky;top:0;z-index:10}.brand{color:var(--accent-dark);font-size:20px;font-weight:800;text-decoration:none}nav{display:flex;flex-wrap:wrap;gap:14px}.back-link,nav a{color:var(--muted);font-size:14px;font-weight:700;text-decoration:none}.back-link:hover,.tool-card:hover h2,nav a:hover{color:var(--accent-dark)}.page{margin:0 auto;max-width:1120px;padding:48px clamp(16px,4vw,48px)}.hero,.tool-header{max-width:760px}.eyebrow{color:var(--accent-dark);font-size:13px;font-weight:800;margin:0 0 10px;text-transform:uppercase}.eyebrow,h1{letter-spacing:0}h1{font-size:clamp(38px,7vw,72px);line-height:.95;margin:0 0 20px}h2{font-size:24px;letter-spacing:0;line-height:1.15;margin:0 0 16px}p{color:var(--muted);font-size:17px;line-height:1.65}.tool-list{display:grid;grid-gap:16px;gap:16px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));margin-top:36px}.calculator-form,.result-panel,.tool-card,details{background:var(--surface);border:1px solid var(--line);border-radius:8px;box-shadow:0 14px 35px rgba(24,33,47,.06)}.tool-card{display:block;min-height:260px;padding:22px;text-decoration:none}.tool-card span{color:var(--accent-dark);font-size:13px;font-weight:800}.tool-card h2{font-size:22px;line-height:1.15;margin-top:18px}.tool-card p{font-size:15px}.tool-page{display:grid;grid-gap:28px;gap:28px}.not-found-page{display:grid;grid-gap:12px;gap:12px}.tool-grid{align-items:start;display:grid;grid-gap:18px;gap:18px;grid-template-columns:minmax(0,1.4fr) minmax(280px,.8fr)}.calculator-form{display:grid;grid-gap:14px;gap:14px;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));padding:22px}.field{color:var(--text);display:grid;font-size:14px;font-weight:800;grid-gap:8px;gap:8px}.field-control{align-items:center;border:1px solid var(--line);border-radius:6px;display:grid;grid-template-columns:minmax(0,1fr) auto;min-height:46px;overflow:hidden}input,select{background:var(--surface);color:var(--text);font:inherit;min-width:0}input{border:0;padding:12px}select{border:1px solid var(--line);border-radius:6px;min-height:46px;padding:11px 12px}input:focus,select:focus{outline:3px solid var(--focus)}input[readonly],select:disabled{color:var(--muted);cursor:wait}.field-control span{align-items:center;background:var(--surface-muted);color:var(--muted);display:flex;height:100%;padding:12px}.result-panel{padding:22px}dl{display:grid;grid-gap:12px;gap:12px;margin:0}.result-row{border-bottom:1px solid var(--line);display:grid;grid-gap:6px;gap:6px;padding-bottom:12px}.result-row:last-child{border-bottom:0;padding-bottom:0}dt{color:var(--muted);font-size:13px}dd,dt{font-weight:800}dd{font-size:22px;margin:0}.faq{display:grid;grid-gap:12px;gap:12px;margin-top:12px}details{padding:18px 20px}summary{cursor:pointer;font-weight:800}details p{margin-bottom:0}@media (max-width:760px){.site-header{align-items:flex-start;flex-direction:column}.tool-grid{grid-template-columns:1fr}}