:root {--bg:#FFFFFF;--section:#F8FAFC;--card:#FFFFFF;--text:#0F172A;--muted:#64748B;--soft:#94A3B8;--border:#E2E8F0;--accent:#3730A3;--accent-hover:#312E81;--accent-soft:#EEF2FF;--accent-muted:#4F46A5;--success:#059669;--warning:#D97706;--error:#DC2626;--shadow:0 18px 50px rgba(15,23,42,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--bg)}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit}button,input,select{font:inherit}.wrap{max-width:1180px;margin:auto;padding:0 24px}
.site-nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid var(--border)}.nav-inner{max-width:1180px;margin:0 auto;padding:16px 24px;display:flex;align-items:center;justify-content:space-between;gap:22px}.logo{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.03em;font-size:20px;white-space:nowrap}.logo-mark{width:32px;height:32px;border-radius:9px;background:var(--accent);position:relative;box-shadow:0 10px 24px rgba(55,48,163,.2)}.logo-mark::before{content:'';position:absolute;inset:9px 7px;background:white;clip-path:polygon(0 25%,54% 25%,40% 0,100% 50%,40% 100%,54% 75%,0 75%)}.nav-links{display:flex;align-items:center;gap:6px}.nav-links>a,.nav-toggle{color:var(--muted);font-size:14px;font-weight:600;padding:8px 11px;border-radius:8px}.nav-links>a:hover,.nav-links>a[aria-current=page],.nav-toggle:hover,.nav-toggle[aria-expanded=true]{color:var(--accent);background:var(--accent-soft)}.nav-group{position:relative}.nav-toggle{background:transparent;border:0;cursor:pointer}.nav-sub{display:none;position:absolute;top:100%;left:0;min-width:220px;background:white;border:1px solid var(--border);border-radius:10px;padding:8px;box-shadow:var(--shadow)}.nav-sub a{display:block;font-size:14px;padding:9px 12px;border-radius:6px}.nav-sub a:hover,.nav-sub a[aria-current=page]{background:var(--accent-soft);color:var(--accent)}.nav-group.open .nav-sub{display:block}.mobile-menu{display:none;width:40px;height:40px;border:1px solid var(--border);border-radius:10px;background:var(--card);color:var(--text);align-items:center;justify-content:center;font-size:20px;cursor:pointer}
.hero{padding:90px 0 72px;background:linear-gradient(180deg,#fff 0%,#F8FAFC 100%);border-bottom:1px solid var(--border)}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--accent);background:var(--accent-soft);border:1px solid #C7D2FE;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:700;margin-bottom:16px}.eyebrow:empty{display:none}h1,h2,h3{letter-spacing:-.04em;line-height:1.1}h1{font-size:clamp(44px,6.2vw,78px);font-weight:800;max-width:850px;margin:6px 0 22px}h2{font-size:clamp(32px,4vw,50px);font-weight:800;margin:0 0 24px}h3{font-size:22px;margin:0 0 10px}p{color:var(--muted);margin:0 0 18px}.lead{font-size:19px;line-height:1.7;max-width:740px}.cta,.tool-button{display:inline-flex;align-items:center;justify-content:center;padding:13px 20px;background:var(--accent);color:white;border:1px solid var(--accent);border-radius:9px;text-decoration:none;font-weight:700;margin:12px 12px 0 0;cursor:pointer}.cta:hover,.tool-button:hover{background:var(--accent-hover)}.cta.alt{background:white;color:var(--accent);border-color:#C7D2FE}.cta.alt:hover{background:var(--accent-soft)}.section{padding:76px 0;border-bottom:1px solid var(--border)}.section:nth-of-type(odd):not(.hero){background:var(--section)}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card{border:1px solid var(--border);background:var(--card);padding:27px;border-radius:14px;display:flex;flex-direction:column;align-items:flex-start;box-shadow:0 4px 18px rgba(15,23,42,.035)}.card p{flex:1}.card a{color:var(--accent);text-decoration:none;font-size:14px;font-weight:700}.card a:hover{text-decoration:underline}.kicker{font-size:12px;color:var(--accent);text-transform:uppercase;font-weight:700;letter-spacing:.06em;margin-bottom:13px}.prose{max-width:790px}.steps{counter-reset:s;display:grid;gap:14px}.step{border-left:3px solid var(--accent);padding:18px 22px;background:white;border-radius:0 10px 10px 0;border-top:1px solid var(--border);border-right:1px solid var(--border);border-bottom:1px solid var(--border)}.step strong{color:var(--text)}.footer{padding:40px 0;color:var(--muted);font-size:13px;background:var(--section)}.footer p{font-size:13px}.footnav{display:flex;gap:20px;flex-wrap:wrap}.footnav a{color:var(--accent)}.note,.notice{border-left:3px solid var(--accent);background:var(--accent-soft);padding:18px;border-radius:0 8px 8px 0;margin:22px 0}.note p,.notice p{margin:0}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:15px;text-align:left;border-bottom:1px solid var(--border);vertical-align:top}.table th{color:var(--accent)}
.tool-layout{display:grid;grid-template-columns:minmax(230px,300px) 1fr;gap:24px;align-items:start}.tool-panel{border:1px solid var(--border);background:#fff;padding:24px;border-radius:12px;box-shadow:0 4px 18px rgba(15,23,42,.035)}.field{display:block;margin-bottom:17px}.field span{display:block;color:var(--text);font-size:13px;font-weight:600;margin-bottom:7px}.field select,.field input,.field textarea{width:100%;padding:12px;background:white;border:1px solid #CBD5E1;border-radius:8px;color:var(--text);font:inherit}.tool-results{display:grid;gap:13px}.result{padding:22px;background:white;border:1px solid var(--border);border-radius:12px}.result h3{margin:0 0 10px}.result p{margin:8px 0}.tag{display:inline-block;border:1px solid #C7D2FE;border-radius:6px;background:var(--accent-soft);color:var(--accent);font-size:11px;font-weight:700;padding:4px 8px;margin:0 5px 8px 0}.tool-button{margin:0}.tool-button:focus-visible,.field select:focus-visible,.field input:focus-visible,.nav-toggle:focus-visible,.nav-sub a:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.muted{color:var(--muted)}.tool-actions{display:flex;flex-wrap:wrap;gap:12px;margin:20px 0}.tool-intro{max-width:800px}.metric{font-size:36px;font-weight:800;color:var(--accent)}
@media(max-width:950px){.mobile-menu{display:flex}.nav-inner{flex-wrap:wrap}.nav-links{display:none;flex-direction:column;align-items:stretch;flex-basis:100%;width:100%;padding:10px 0}.nav-links.open{display:flex}.nav-group,.nav-toggle{width:100%;text-align:left}.nav-sub{position:static;display:none;box-shadow:none;margin:4px 0 10px 14px;min-width:0}.nav-group.open .nav-sub{display:block}.grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:680px){.hero{padding:56px 0}.section{padding:54px 0}.grid,.tool-layout{grid-template-columns:1fr}h1{font-size:clamp(39px,10vw,56px)}.table{font-size:13px}.cta{width:100%;margin-right:0}.tool-panel{padding:20px}}