:root{--bg:#f6f7fb;--surface:#fff;--ink:#16181d;--muted:#666d78;--line:#e4e7ec;--accent:#1f64ff;--accent2:#174bc1;--soft:#eef4ff;--radius:18px;--shadow:0 12px 34px rgba(20,35,70,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.55}.wrap{width:min(1120px,calc(100% - 32px));margin:auto}.narrow{width:min(760px,calc(100% - 32px))}.site-header{position:sticky;top:0;z-index:20;background:rgba(246,247,251,.9);backdrop-filter:blur(14px);border-bottom:1px solid rgba(228,231,236,.8)}.header-inner{height:66px;display:flex;align-items:center;justify-content:space-between}.brand{font-weight:850;color:var(--ink);text-decoration:none;letter-spacing:-.02em}.site-header nav{display:flex;gap:20px}.site-header nav a{font-size:.94rem;color:var(--muted);text-decoration:none}.site-header nav a:hover{color:var(--ink)}.hero{padding:86px 0 58px;background:radial-gradient(circle at 20% 10%,#e7efff 0,rgba(231,239,255,0) 35%)}.hero h1{max-width:850px;font-size:clamp(2.4rem,6vw,5.25rem);line-height:1.02;letter-spacing:-.055em;margin:.4rem 0 1.2rem}.tool-hero{padding:62px 0 30px}.tool-hero h1{font-size:clamp(2.1rem,6vw,4rem)}.tool-hero p{font-size:1.08rem;color:var(--muted)}.eyebrow{font-weight:800;text-transform:uppercase;letter-spacing:.1em;font-size:.73rem;color:var(--accent)}.lead{max-width:700px;color:var(--muted);font-size:1.16rem}.cta,.primary{display:inline-flex;align-items:center;justify-content:center;border:0;background:var(--accent);color:white;text-decoration:none;font-weight:800;padding:13px 18px;border-radius:12px;cursor:pointer;transition:.15s}.cta:hover,.primary:hover{background:var(--accent2);transform:translateY(-1px)}.tools-section{padding:52px 0 34px}.section-heading span{color:var(--accent);font-weight:800;font-size:.85rem}.section-heading h2,.tool-category h2,.related h2{font-size:clamp(1.55rem,3vw,2.1rem);letter-spacing:-.03em}.tool-category{margin-top:48px}.tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.tool-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;text-decoration:none;color:var(--ink);box-shadow:0 1px 0 rgba(20,35,70,.01);transition:.18s}.tool-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cfd7e8}.tool-card h3{margin:8px 0 8px;letter-spacing:-.02em}.tool-card p{color:var(--muted);font-size:.94rem;min-height:67px}.card-category{font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;color:var(--accent)}.card-link{font-size:.9rem;font-weight:800;color:var(--accent)}.calculator{background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:26px;box-shadow:var(--shadow);margin:10px 0 26px}.fields{display:grid;gap:16px}.fields label{display:grid;gap:7px;font-weight:760;font-size:.93rem}.fields input,.fields textarea{width:100%;border:1px solid #d8dce4;background:#fbfcfe;border-radius:12px;padding:13px 14px;font:inherit;color:var(--ink);outline:none}.fields textarea{resize:vertical;min-height:130px}.fields input:focus,.fields textarea:focus{border-color:#9bb7ff;box-shadow:0 0 0 4px rgba(31,100,255,.09)}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.secondary{border:1px solid var(--line);background:#fff;color:var(--ink);font-weight:750;padding:12px 15px;border-radius:12px;cursor:pointer}.secondary:hover{background:#f6f7fb}.result{margin-top:20px;background:var(--soft);border:1px solid #d8e5ff;border-radius:14px;padding:17px;display:grid;gap:4px}.result-label{font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:#4d6cae;font-weight:850}.result strong{font-size:1.12rem;white-space:pre-wrap;overflow-wrap:anywhere}.result.error{background:#fff1f1;border-color:#ffd1d1}.result.error .result-label{color:#a43e3e}.info-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:22px;margin:20px 0}.info-card h2{margin-top:0;letter-spacing:-.02em}.info-card p{color:var(--muted)}.related{padding:18px 0 68px}.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.related-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:16px;text-decoration:none;color:var(--ink);display:grid;gap:4px}.related-card span{font-size:.9rem;color:var(--muted)}.trust{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding:32px 0 76px}.trust div{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px;display:grid}.trust span{color:var(--muted);font-size:.92rem}footer{border-top:1px solid var(--line);padding:28px 0;background:#fff}.footer-inner{display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:.9rem}.privacy{padding:62px 0 80px}.privacy h1{font-size:clamp(2.1rem,5vw,3.6rem);letter-spacing:-.04em}.privacy h2{margin-top:34px}.privacy p{color:var(--muted)}
@media(max-width:800px){.tool-grid{grid-template-columns:1fr 1fr}.hero{padding-top:58px}.hero h1{font-size:clamp(2.4rem,12vw,4.2rem)}}@media(max-width:560px){.tool-grid,.related-grid,.trust{grid-template-columns:1fr}.site-header nav a:first-child{display:none}.calculator{padding:18px}.footer-inner{flex-direction:column}.tool-card p{min-height:auto}}

.breadcrumb{display:flex;align-items:center;gap:8px;margin-bottom:18px;font-size:.9rem;color:var(--muted)}.breadcrumb a{color:var(--accent);text-decoration:none}.breadcrumb a:hover{text-decoration:underline}.seo-content{display:grid;gap:0}.seo-section{margin:16px 0}.seo-section h2{margin-bottom:10px}.steps{padding-left:22px;color:var(--muted)}.steps li+li{margin-top:8px}.formula-box{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:#f7f9fc;border:1px solid var(--line);border-radius:12px;padding:14px;color:var(--ink)!important;overflow-wrap:anywhere}.faq-block details{border-top:1px solid var(--line);padding:14px 0}.faq-block details:last-child{border-bottom:1px solid var(--line)}.faq-block summary{font-weight:800;cursor:pointer}.faq-block details p{margin-bottom:0}.about-note{color:var(--muted);font-size:.94rem}

.category-directory{padding:54px 0 12px}.category-directory .section-heading p{max-width:720px;color:var(--muted)}.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px}.category-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;text-decoration:none;color:var(--ink);box-shadow:0 1px 0 rgba(20,35,70,.01);transition:.18s}.category-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cfd7e8}.category-card h3{margin:8px 0;letter-spacing:-.02em}.category-card p{color:var(--muted);font-size:.94rem}.category-heading-link{color:var(--ink);text-decoration:none}.category-heading-link:hover{color:var(--accent)}.category-hero{padding-bottom:34px}.category-tools{padding-top:24px}.category-context{padding:4px 0 16px}.other-categories{padding:18px 0 72px}.category-mini-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:18px}.category-mini{display:grid;gap:3px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;color:var(--ink);text-decoration:none}.category-mini span{color:var(--muted);font-size:.86rem}.related-heading{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:14px}.related-heading h2{margin:4px 0 0}.category-back-link{color:var(--accent);font-weight:800;text-decoration:none;font-size:.92rem;white-space:nowrap}.category-back-link:hover{text-decoration:underline}@media(max-width:800px){.category-grid{grid-template-columns:1fr 1fr}.category-mini-grid{grid-template-columns:1fr 1fr}}@media(max-width:560px){.category-grid,.category-mini-grid{grid-template-columns:1fr}.related-heading{align-items:start;flex-direction:column;gap:8px}.category-back-link{white-space:normal}}