:root{
  --ink:#0e1c2b;--ink-2:#34475a;--muted:#5b6b7b;
  --navy:#0f2a42;--navy-2:#16395a;
  --accent:#0a7a52;--accent-d:#07613f;--accent-soft:#e3f4ec;
  --warn:#9a4a06;--warn-soft:#fdf1e3;--warn-line:#f0c48f;
  --bad:#a1262a;--bad-soft:#fbe9e9;
  --bg:#f6f8fa;--surface:#fff;--line:#dfe5ec;
  --radius:14px;--shadow:0 1px 2px rgba(14,28,43,.06),0 8px 24px rgba(14,28,43,.06);
  --max:1160px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;font-size:17px}
img,svg{max-width:100%}
a{color:var(--accent-d)}
a:hover{color:var(--accent)}
h1,h2,h3,h4{line-height:1.2;letter-spacing:-.015em;margin:0 0 .6em;color:var(--ink)}
h1{font-size:clamp(2rem,4.6vw,3.2rem);letter-spacing:-.025em}
h2{font-size:clamp(1.6rem,3vw,2.2rem)}
h3{font-size:1.2rem}
p{margin:0 0 1em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;z-index:99;background:#fff;padding:8px 12px}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-d);margin-bottom:.8em}
.lead{font-size:1.15rem;color:var(--ink-2);max-width:62ch}
.muted{color:var(--muted)}
.small{font-size:.9rem}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:800;letter-spacing:-.02em;font-size:1.02rem;line-height:1.1}
.logo span{display:block;white-space:nowrap;font-weight:600;font-size:.72rem;color:var(--muted);letter-spacing:.02em}
.logo svg{flex:none}
.menu{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.menu a{display:block;white-space:nowrap;padding:8px 12px;border-radius:8px;text-decoration:none;color:var(--ink-2);font-weight:600;font-size:.95rem}
.menu a:hover,.menu a[aria-current=page]{background:var(--bg);color:var(--ink)}
.menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:10px;padding:8px 10px;cursor:pointer;color:var(--ink)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 20px;border-radius:10px;font-weight:700;text-decoration:none;border:2px solid transparent;cursor:pointer;font-size:1rem;line-height:1.2;transition:background .15s,transform .15s}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-d);color:#fff}
.btn-ghost{background:transparent;border-color:currentColor;color:var(--navy)}
.btn-ghost:hover{background:var(--navy);color:#fff;border-color:var(--navy)}
.btn-light{background:#fff;color:var(--navy)}
.btn-light:hover{background:var(--accent-soft);color:var(--navy)}
.btn-outline-light{border-color:rgba(255,255,255,.6);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-sm{padding:9px 14px;font-size:.92rem;white-space:nowrap}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:1.6em}

/* hero */
.hero{background:radial-gradient(1200px 500px at 85% -10%,#1d5a7d 0,transparent 60%),linear-gradient(160deg,var(--navy) 0,#0b2033 100%);color:#e8eef4;padding:72px 0 80px;overflow:hidden}
.hero h1{color:#fff;max-width:18ch}
.hero .lead{color:#c9d6e2}
.hero .eyebrow{color:#7fe0b6}
.hero-grid{display:grid;grid-template-columns:1.25fr .9fr;gap:48px;align-items:center}
.hero-points{list-style:none;padding:0;margin:1.6em 0 0;display:grid;gap:10px}
.hero-points li{display:flex;gap:10px;align-items:flex-start;color:#dce6ef}
.hero-points svg{flex:none;margin-top:3px;color:#7fe0b6}
.evidence-card{background:#fff;color:var(--ink);border-radius:18px;padding:22px;box-shadow:0 20px 60px rgba(0,0,0,.35);font-size:.92rem}
.evidence-card h3{font-size:1rem;margin-bottom:.9em;display:flex;align-items:center;gap:8px}
.ev-row{display:grid;grid-template-columns:1fr auto;align-items:center;gap:8px;padding:10px 0;border-top:1px solid var(--line)}
.ev-row code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.78rem;color:var(--ink-2);word-break:break-all}
.tag{display:inline-block;font-size:.72rem;font-weight:700;padding:3px 8px;border-radius:999px;white-space:nowrap}
.tag-ok{background:var(--accent-soft);color:var(--accent-d)}
.tag-warn{background:var(--warn-soft);color:var(--warn)}
.tag-bad{background:var(--bad-soft);color:var(--bad)}
.tag-neutral{background:#eef1f5;color:var(--ink-2)}

/* sections */
section{padding:72px 0}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:36px}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.card h3{margin-bottom:.5em}
.card p:last-child{margin-bottom:0}
.card .icon{width:44px;height:44px;border-radius:12px;background:var(--accent-soft);color:var(--accent-d);display:grid;place-items:center;margin-bottom:16px}
.card-link{display:inline-flex;gap:6px;align-items:center;font-weight:700;text-decoration:none;margin-top:10px}
.card-feature{border:2px solid var(--accent)}
.badge-opt{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--navy);color:#fff;padding:3px 8px;border-radius:6px;margin-bottom:10px}

.checklist{list-style:none;padding:0;margin:0 0 1em}
.checklist li{position:relative;padding-left:30px;margin-bottom:.6em}
.checklist li::before{content:"";position:absolute;left:0;top:.35em;width:18px;height:18px;border-radius:50%;background:var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2307613f' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/12px no-repeat}
.xlist li::before{background:var(--bad-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a1262a' stroke-width='3.2' stroke-linecap='round'%3E%3Cpath d='M6 6l12 12M18 6L6 18'/%3E%3C/svg%3E") center/11px no-repeat}

/* steps */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;list-style:none;padding:0;margin:0}
.steps li{counter-increment:s;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;position:relative}
.steps li::before{content:counter(s);display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--navy);color:#fff;font-weight:800;margin-bottom:14px}
.steps h3{font-size:1.05rem}
.steps p{margin:0;color:var(--ink-2);font-size:.96rem}

/* compare table */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
table{width:100%;border-collapse:collapse;font-size:.95rem}
th,td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:#f1f4f8;font-size:.85rem;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-2)}
tr:last-child td{border-bottom:0}

/* callouts */
.callout{border-radius:var(--radius);padding:20px 22px;border:1px solid var(--line);background:var(--surface)}
.callout-warn{background:var(--warn-soft);border-color:var(--warn-line)}
.callout-warn strong{color:var(--warn)}
.callout-info{background:#eaf2fa;border-color:#bcd3ea}
.fiction-banner{display:flex;gap:14px;align-items:flex-start;background:var(--warn-soft);border:2px dashed var(--warn-line);border-radius:var(--radius);padding:18px 20px;margin-bottom:28px}
.fiction-banner svg{flex:none;color:var(--warn);margin-top:2px}

/* case studies */
.case{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:30px;margin-bottom:28px;box-shadow:var(--shadow);scroll-margin-top:90px}
.case-top{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:12px}
.fiction-tag{display:inline-flex;align-items:center;gap:6px;background:var(--warn-soft);color:var(--warn);border:1px solid var(--warn-line);font-weight:800;font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;padding:4px 10px;border-radius:999px}
.case h2{font-size:1.5rem;margin-bottom:.4em}
.case h3{font-size:1rem;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-2);margin-top:1.4em}
.hyp{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:0 0 1em}
.hyp div{border-radius:10px;padding:12px 14px;background:var(--bg);border:1px solid var(--line);font-size:.95rem}
.hyp b{display:block;font-size:.78rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin-bottom:2px}
.case table td:first-child{width:46%}
.case .reading{border-left:4px solid var(--accent);background:var(--accent-soft);padding:14px 18px;border-radius:0 10px 10px 0}
.case-index{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin-bottom:36px}
.case-index a{display:block;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px;text-decoration:none;color:var(--ink);font-weight:700;font-size:.95rem}
.case-index a span{display:block;font-weight:500;color:var(--muted);font-size:.85rem}
.case-index a:hover{border-color:var(--accent)}

/* faq */
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:12px;margin-bottom:10px}
.faq summary{cursor:pointer;list-style:none;padding:18px 52px 18px 20px;font-weight:700;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:1.5rem;font-weight:400;color:var(--accent-d)}
.faq details[open] summary::after{content:"–"}
.faq details>div{padding:0 20px 18px;color:var(--ink-2)}

/* cta band */
.cta-band{background:linear-gradient(135deg,var(--navy) 0,#0b2033 100%);color:#dce6ef;border-radius:20px;padding:44px;display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center}
.cta-band h2{color:#fff}
.cta-band .cta-row{margin-top:0;justify-content:flex-end}

/* page header */
.page-hero{background:linear-gradient(160deg,var(--navy) 0,#0b2033 100%);color:#dce6ef;padding:56px 0 60px}
.page-hero h1{color:#fff;max-width:22ch}
.page-hero .lead{color:#c9d6e2}
.page-hero .eyebrow{color:#7fe0b6}
.crumbs{font-size:.85rem;margin-bottom:18px;color:#9fb3c6}
.crumbs a{color:#c9d6e2}
.prose{max-width:780px}
.prose h2{margin-top:1.6em}
.prose ul{padding-left:1.2em}
.prose li{margin-bottom:.4em}
.two-col{display:grid;grid-template-columns:1.6fr 1fr;gap:40px;align-items:start}
.aside-sticky{position:sticky;top:92px}

/* form */
.form{display:grid;gap:14px}
.form label{font-weight:700;font-size:.92rem;display:block;margin-bottom:4px}
.form input,.form select,.form textarea{width:100%;font:inherit;padding:12px 14px;border:1px solid #c6d0db;border-radius:10px;background:#fff;color:var(--ink)}
.form input:focus,.form select:focus,.form textarea:focus{outline:3px solid rgba(10,122,82,.25);border-color:var(--accent)}
.form .row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form .check{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:.9rem}
.form .check input{width:auto;margin-top:4px}
.contact-list{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.contact-list a{display:flex;gap:12px;align-items:center;padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:#fff;text-decoration:none;color:var(--ink);font-weight:700}
.contact-list a:hover{border-color:var(--accent)}
.contact-list svg{flex:none}
.contact-list div{min-width:0;overflow-wrap:anywhere}
.contact-list small{display:block;font-weight:500;color:var(--muted)}

/* footer */
.site-footer{background:#0a1928;color:#9fb3c6;padding:56px 0 110px;font-size:.93rem;margin-top:0}
.site-footer a{color:#dce6ef;text-decoration:none}
.site-footer a:hover{text-decoration:underline}
.site-footer h4{color:#fff;font-size:.95rem;margin-bottom:.9em}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:6px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.foot-legal{border-top:1px solid #1d3348;margin-top:36px;padding-top:20px;font-size:.82rem;display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between}

/* mobile bar */
.mobile-bar{position:fixed;left:0;right:0;bottom:0;z-index:60;display:none;grid-template-columns:1.3fr 1fr;gap:8px;padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:#fff;border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(14,28,43,.08)}
.mobile-bar .btn{padding:12px 10px}

@media (max-width:980px){
  .hero-grid,.two-col,.cta-band{grid-template-columns:1fr}
  .cta-band .cta-row{justify-content:flex-start}
  .g4,.steps{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .aside-sticky{position:static}
}
@media (max-width:1080px){
  .menu-toggle{display:inline-flex}
  .menu{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:10px 16px 16px;box-shadow:0 12px 24px rgba(14,28,43,.08)}
  .menu.open{display:flex}
  .menu a{padding:12px}
  .nav .btn-header{display:none}
  .mobile-bar{display:grid}
}
@media (max-width:640px){
  body{font-size:16px}
  .wrap{padding:0 16px}
  section{padding:52px 0}
  .hero{padding:44px 0 56px}
  .g2,.g3,.g4,.steps,.hyp,.form .row2,.foot-grid{grid-template-columns:1fr}
  .cta-band{padding:28px 22px}
  .case{padding:22px 18px}
  .case table td:first-child{width:auto}
  .case thead{display:none}
  .case tr{display:block;padding:12px 14px;border-bottom:1px solid var(--line)}
  .case tr:last-child{border-bottom:0}
  .case td{display:block;padding:3px 0;border:0}
  .case td:last-child{color:var(--muted);font-size:.9rem}
  .cta-row .btn{flex:1 1 100%}
  th,td{padding:12px}
  .compare thead{display:none}
  .compare tr{display:block;padding:12px 14px;border-bottom:1px solid var(--line)}
  .compare tr:last-child{border-bottom:0}
  .compare td{display:block;padding:3px 0;border:0}
  .compare td:first-child{font-weight:700;padding-bottom:6px}
  .compare td[data-label]::before{content:attr(data-label) ": ";font-weight:600;color:var(--muted)}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}