:root{--navy:#004B83;--navy-d:#00355D;--ink:#14202B;--ink2:#4A5665;--rule:#D3DAE1;--bg:#F4F6F8;--paper:#fff;--ok:#1F6F3F;--warn:#8A5A00;--mono:'IBM Plex Mono',ui-monospace,Menlo,monospace;--sans:'IBM Plex Sans',system-ui,-apple-system,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--paper);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:var(--navy)}img{max-width:100%;height:auto;display:block}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.nav{border-bottom:1px solid var(--rule);background:#fff;position:sticky;top:0;z-index:10}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;gap:12px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:600;letter-spacing:.02em}
.brand b{display:inline-grid;place-items:center;padding:0 8px;height:32px;background:var(--navy);color:#fff;font-size:13px;letter-spacing:.06em;border-radius:3px}
.brand span{font-size:14px}.brand small{display:block;font-weight:400;color:var(--ink2);font-size:11px;letter-spacing:0}
.btn{display:inline-block;background:var(--navy);color:#fff;text-decoration:none;font-weight:600;padding:12px 20px;border-radius:4px;border:0;font:inherit;font-weight:600;cursor:pointer;text-align:center}
.btn:hover{background:var(--navy-d)}.btn.ghost{background:transparent;color:var(--navy);border:1.5px solid var(--navy)}.btn.sm{padding:8px 14px;font-size:14px;white-space:nowrap}
.btn:disabled{opacity:.5;cursor:wait}
.hero{background:linear-gradient(180deg,#EEF3F8 0,#fff 100%);border-bottom:1px solid var(--rule)}
.hero .wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center;padding-top:56px;padding-bottom:56px}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--navy)}
h1{font-size:44px;line-height:1.1;margin:10px 0 16px;letter-spacing:-.01em}h2{font-size:30px;line-height:1.2;margin:0 0 12px}h3{font-size:18px;margin:0 0 6px}
.lede{font-size:19px;color:var(--ink2);margin:0 0 24px;max-width:34em}
.price-row{display:flex;gap:20px;flex-wrap:wrap;margin:0 0 26px}
.price-row div{border-left:3px solid var(--navy);padding-left:12px}.price-row b{display:block;font-family:var(--mono);font-size:24px;white-space:nowrap;font-weight:500}.price-row small{color:var(--ink2);font-size:13px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.cta-row .note{font-size:13px;color:var(--ink2)}
.sheet{background:#fff;border:1px solid var(--rule);box-shadow:0 18px 40px -18px rgba(0,40,80,.35);border-radius:4px;overflow:hidden}
.sheet figcaption{font-family:var(--mono);font-size:11px;color:var(--ink2);padding:8px 12px;border-top:1px solid var(--rule)}
section{padding:64px 0}section.alt{background:var(--bg);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.card{background:#fff;border:1px solid var(--rule);border-radius:6px;padding:20px}.card p{margin:0;color:var(--ink2)}
.step .n{font-family:var(--mono);color:var(--navy);font-size:13px;letter-spacing:.06em}
ul.ticks{list-style:none;padding:0;margin:0}ul.ticks li{padding:7px 0 7px 26px;position:relative;border-bottom:1px solid var(--rule)}ul.ticks li:last-child{border-bottom:0}
ul.ticks li:before{content:"";position:absolute;left:2px;top:14px;width:12px;height:6px;border-left:2px solid var(--ok);border-bottom:2px solid var(--ok);transform:rotate(-45deg)}
.specs{font-size:14px;width:100%;border-collapse:collapse}.specs td{padding:8px 0;border-bottom:1px solid var(--rule);vertical-align:top}.specs td:first-child{color:var(--ink2);width:42%}
.sheets{display:grid;grid-template-columns:1fr 1fr;gap:20px}
details{border-bottom:1px solid var(--rule);padding:14px 0}details summary{font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:12px}
details summary::-webkit-details-marker{display:none}details summary:after{content:"+";font-family:var(--mono);color:var(--navy)}details[open] summary:after{content:"–"}
details p{color:var(--ink2);margin:10px 0 0}
.band{background:var(--navy);color:#fff;text-align:center}.band h2{color:#fff}.band p{color:#C9DAEA}.band .btn{background:#fff;color:var(--navy)}
footer{border-top:1px solid var(--rule);padding:28px 0;font-size:13px;color:var(--ink2)}footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
/* forms */
.form-page{background:var(--bg);min-height:100vh}.form-page main{padding:36px 0 64px}
.panel{background:#fff;border:1px solid var(--rule);border-radius:6px;padding:22px;margin-bottom:18px}
.panel h2{font-size:18px;margin:0 0 4px}.panel .sub{color:var(--ink2);font-size:14px;margin:0 0 16px}
.f2{display:grid;grid-template-columns:1fr 1fr;gap:12px 16px}.f3{display:grid;grid-template-columns:2fr 1fr 1fr;gap:12px 16px}.full{grid-column:1/-1}
label{display:block;font-size:13px;font-weight:500;margin-bottom:4px}label .opt{font-weight:400;color:var(--ink2)}
input,select,textarea{width:100%;font:inherit;font-size:15px;padding:10px 12px;border:1px solid #BFC8D1;border-radius:4px;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--navy);outline-offset:0;border-color:var(--navy)}
input[type=file]{padding:8px;background:var(--bg)}
.chk{display:flex;gap:10px;align-items:flex-start;font-size:14px;margin:12px 0}.chk input{width:auto;margin-top:4px}
.radio{display:flex;gap:10px;flex-wrap:wrap}.radio label{display:flex;gap:8px;align-items:center;border:1px solid #BFC8D1;border-radius:4px;padding:9px 12px;font-weight:400;cursor:pointer}.radio input{width:auto}
.radio label:has(input:checked){border-color:var(--navy);background:#EEF3F8}
.hint{font-size:13px;color:var(--ink2);margin:6px 0 0}.warnbox{background:#FFF6E5;border-left:3px solid #E0A400;padding:10px 12px;font-size:14px;color:var(--warn);margin-top:12px}
.summary{position:sticky;top:76px}.layout{display:grid;grid-template-columns:1fr 320px;gap:20px;align-items:start}
.summary .total{font-family:var(--mono);font-size:32px}.err{color:#9B1C1C;font-size:14px;margin-top:10px}
.hidden{display:none!important}
.prose{max-width:760px}.prose h2{font-size:20px;margin-top:28px}.prose p,.prose li{color:#2B3744}
@media(max-width:860px){h1{font-size:34px}.hero .wrap,.grid2,.sheets,.layout{grid-template-columns:1fr}.grid3{grid-template-columns:1fr}.summary{position:static}section{padding:48px 0}}
@media(max-width:520px){.f2,.f3{grid-template-columns:1fr}.nav .brand small{display:none}.nav .brand span{font-size:13px}.btn.sm{padding:7px 10px;font-size:13px}}