.site-header{position:sticky;top:0;z-index:50;height:var(--header-h);background:rgba(8,17,31,.88);backdrop-filter:saturate(1.2) blur(12px);border-bottom:1px solid var(--line-on-dark);color:var(--ink-on-dark)}
.site-header .inner{display:flex;align-items:center;gap:20px;height:var(--header-h)}
.logo{display:flex;align-items:baseline;gap:8px;color:var(--ink-on-dark);font-weight:700;letter-spacing:-.02em;flex-shrink:0}
.logo:hover{color:var(--ink-on-dark)}.logo-mark{color:var(--cyan);font-weight:800}.logo-sub{font-size:12px;color:rgba(247,249,252,.55);font-weight:500}
.nav{display:flex;align-items:center;gap:4px 16px;flex:1;flex-wrap:wrap;justify-content:flex-end}
.nav > a{color:rgba(247,249,252,.78);font-size:14px;padding:6px 2px;border-bottom:2px solid transparent;transition:color var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease),transform var(--dur-fast) var(--ease)}
.nav > a[aria-current=page]{color:#fff;border-bottom-color:var(--brand)}
@media(hover:hover){.nav > a:hover{color:#fff;border-bottom-color:var(--brand)}}
.nav-cta{margin-left:8px}
.nav-toggle{display:none;border:1px solid var(--line-on-dark);background:var(--bg-deep-2);color:#fff;border-radius:var(--radius-sm);padding:8px 12px;cursor:pointer}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 22px;border-radius:999px;border:1px solid transparent;font-weight:600;font-size:15px;cursor:pointer;transition:background var(--dur-ui) var(--ease),color var(--dur-ui) var(--ease),border-color var(--dur-ui) var(--ease),transform var(--dur-ui) var(--ease),opacity var(--dur-ui) var(--ease)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);color:#fff}.btn-brand{background:var(--brand);color:#fff}
@media(hover:hover){
.btn-primary:hover,.btn-brand:hover{background:var(--brand-hover);color:#fff;transform:scale(1.025)}
.btn-primary:hover .btn__arrow,.btn-brand:hover .btn__arrow{transform:translateX(4px)}
}
.btn-ghost{background:transparent;color:var(--ink-2);border-color:var(--line-strong)}
@media(hover:hover){.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:scale(1.025)}}
.section-dark .btn-ghost,.final-cta .btn-ghost{border-color:rgba(247,249,252,.35);color:#fff}
@media(hover:hover){.section-dark .btn-ghost:hover,.final-cta .btn-ghost:hover{border-color:#fff;color:#fff}}
.btn-text{background:none;border:0;color:var(--brand);padding:0;min-height:0;font-weight:600}
.btn__arrow{display:inline-block;margin-left:2px;transition:transform var(--dur-fast) var(--ease);will-change:transform}
.section{padding:88px 0}.section-alt{background:var(--bg-soft)}
.section-num{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--brand);margin-bottom:14px}
.section-head{max-width:780px;margin-bottom:48px}.section-head h2{margin-bottom:14px}.section-head p{margin:0;font-size:var(--fs-lg);color:var(--ink-muted)}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--cyan);letter-spacing:.06em;margin-bottom:16px}
.site-footer{border-top:1px solid var(--line-on-dark);background:var(--bg-deep);padding:48px 0 32px;font-size:var(--fs-sm);color:rgba(247,249,252,.55)}
.footer-grid{display:grid;gap:28px;grid-template-columns:1.4fr 1fr 1fr}
.footer-brand strong{display:block;color:#fff;font-size:15px;margin-bottom:8px}
.footer-brand .muted{color:rgba(247,249,252,.55)}
.footer-links{display:flex;flex-direction:column;gap:8px}.footer-links a{color:rgba(247,249,252,.7)}
@media(hover:hover){.footer-links a:hover{color:var(--cyan)}}
.footer-meta{margin-top:28px;padding-top:18px;border-top:1px solid var(--line-on-dark);display:flex;flex-wrap:wrap;gap:8px 18px}
.footer-meta a{color:rgba(247,249,252,.5)}
.site-footer a{color:var(--cyan)}
.pill{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600}
.section-dark .pill{background:rgba(105,210,255,.15);color:var(--cyan)}
.check-list{list-style:none;padding:0;margin:0}
.check-list li{position:relative;padding:8px 0 8px 28px;border-bottom:1px solid var(--line);color:var(--ink-2);font-size:15px}
.check-list li:last-child{border-bottom:0}
.check-list li::before{content:"";position:absolute;left:0;top:14px;width:14px;height:14px;border-radius:3px;border:1.5px solid var(--brand);background:linear-gradient(var(--brand),var(--brand)) center/8px 8px no-repeat content-box;padding:2px}
.form-field{margin-bottom:16px}.form-field label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:6px}
.form-field input,.form-field textarea{width:100%;padding:12px 14px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--surface)}
.form-field input:focus,.form-field textarea:focus{border-color:var(--brand);outline:none;box-shadow:0 0 0 3px var(--brand-soft)}
.form-field textarea{min-height:120px;resize:vertical}
.form-error{background:rgba(194,59,46,.08);color:var(--danger);padding:10px 14px;border-radius:var(--radius-sm);margin-bottom:14px;font-size:14px}
.form-ok{background:rgba(31,138,91,.1);color:var(--ok);padding:14px 16px;border-radius:var(--radius);margin-bottom:18px;font-weight:600}
.crumb{font-size:13px;color:var(--ink-faint);margin-bottom:18px}.crumb a{color:var(--ink-muted)}
.page-hero{padding:56px 0 32px;background:linear-gradient(180deg,var(--bg-deep) 0%,var(--bg-deep-2) 70%,var(--bg) 100%);color:var(--ink-on-dark)}
.page-hero h1{color:#fff;margin-bottom:14px;max-width:16em}
.page-hero .lead{font-size:var(--fs-lg);color:var(--ink-on-dark-muted);max-width:640px;margin:0}
.page-hero .crumb,.page-hero .crumb a{color:rgba(247,249,252,.5)}
@media(max-width:900px){
.nav-toggle{display:inline-flex;margin-left:auto}
.nav{display:none;position:absolute;left:0;right:0;top:var(--header-h);background:var(--bg-deep);border-bottom:1px solid var(--line-on-dark);flex-direction:column;align-items:stretch;padding:12px var(--gutter) 20px;gap:0}
body.nav-open .nav{display:flex}
.nav > a{padding:12px 4px;border-bottom:1px solid var(--line-on-dark)}.nav-cta{margin:12px 0 0}
.footer-grid{grid-template-columns:1fr}
}
/* nav dropdown */
.nav__dd-wrap{position:relative;display:inline-flex;align-items:center}
.nav__trigger{appearance:none;background:none;border:0;padding:6px 2px;font:inherit;font-size:14px;color:rgba(247,249,252,.78);cursor:pointer;border-bottom:2px solid transparent;transition:color var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease)}
.nav__trigger[aria-expanded=true],.nav__dd-wrap[data-open] .nav__trigger,.nav__trigger[aria-current=page]{color:#fff;border-bottom-color:var(--brand)}
@media(hover:hover){.nav__trigger:hover{color:#fff;border-bottom-color:var(--brand)}}
.nav__trigger::after{content:"";display:inline-block;width:0;height:0;margin-left:6px;vertical-align:middle;border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid currentColor;opacity:.7}
.nav__dd{position:absolute;top:calc(100% + 10px);left:0;min-width:200px;padding:8px;background:var(--bg-deep-2);border:1px solid var(--line-on-dark);border-radius:var(--radius-sm);box-shadow:var(--shadow-lift);z-index:60;display:none;flex-direction:column;gap:2px}
.nav__dd-wrap[data-open] .nav__dd,.nav__dd:not([hidden]){display:flex}
.nav__dd[hidden]{display:none!important}
.nav__dd a{display:block;padding:10px 12px;border-radius:6px;border-bottom:0!important;color:rgba(247,249,252,.8);font-size:14px;white-space:nowrap}
@media(hover:hover){.nav__dd a:hover,.nav__dd a:focus{background:rgba(47,107,255,.2);color:#fff;outline:none}}
.nav__dd a[aria-current=page]{color:var(--cyan);font-weight:600}
@media(max-width:900px){
.nav__dd-wrap{flex-direction:column;align-items:stretch;width:100%}
.nav__trigger{width:100%;text-align:left;padding:12px 4px;border-bottom:1px solid var(--line-on-dark)}
.nav__trigger::after{float:right;margin-top:8px}
.nav__dd{position:static;box-shadow:none;border:0;border-radius:0;padding:0 0 8px 12px;min-width:0;background:transparent}
.nav__dd a{padding:10px 4px;border-bottom:1px solid var(--line-on-dark)!important;border-radius:0}
}
/* link underline micro */
.link-u{background-image:linear-gradient(currentColor,currentColor);background-position:0 100%;background-repeat:no-repeat;background-size:0 1.5px;transition:background-size var(--dur-ui) var(--ease)}
@media(hover:hover){.link-u:hover{background-size:100% 1.5px}}