:root{--bg:#07090d;--bg2:#0e1218;--card:#121821;--line:#223044;--text:#f4f7fb;--muted:#9aa8b8;--blue:#0086ff;--blue2:#006ed1;--focus:#7ec4ff;--header:64px;--max:1140px;--font:"Segoe UI",system-ui,-apple-system,sans-serif}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;overflow-x:hidden}
body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.65}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue);text-underline-offset:.16em}
a:hover{color:#4aa8ff}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px}
.skip-link{position:absolute;left:-999px;top:8px;background:var(--blue);color:#fff;padding:8px 12px;z-index:1000;font-weight:700}
.skip-link:focus{left:8px}
.container{width:min(var(--max),calc(100% - 32px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:1000;height:var(--header);background:#07090d;border-bottom:1px solid var(--line);isolation:isolate}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header);gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:700;letter-spacing:.01em}
.brand:hover{color:#fff}
.logo-badge{width:40px;height:40px;border-radius:50%;background:#000;border:2px solid #fff;display:grid;place-items:center;flex-shrink:0;overflow:hidden}
.logo-badge img{width:28px;height:28px;object-fit:contain}
.header-inner .logo-badge{width:38px;height:38px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--card);color:var(--text);border-radius:10px;cursor:pointer}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{display:block;width:18px;height:2px;background:currentColor;margin:0 auto;position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.site-nav ul{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.site-nav a{display:inline-flex;align-items:center;min-height:38px;padding:0 12px;color:#fff;text-decoration:none;border-radius:9px;font-weight:600;font-size:.93rem}
.site-nav a:hover,.site-nav a[aria-current="page"]{color:#fff;background:#1a2433}
.hero{text-align:center;padding:28px 0 10px;background:radial-gradient(800px 280px at 50% 0,rgba(0,134,255,.14),transparent 60%)}
.hero .container{width:min(720px,calc(100% - 32px))}
.hero h1{margin:0 auto 14px;font-size:clamp(1.55rem,3.4vw,2.4rem);line-height:1.18;letter-spacing:-.03em}
.hero-logo{margin:0 auto 16px}
.hero-logo.logo-badge{width:132px;height:132px;border-width:3px}
.hero-logo.logo-badge img{width:88px;height:88px}
.hero-desc{margin:16px auto 0;color:var(--muted);font-size:1.05rem;max-width:52ch}
.hero-actions{display:flex;justify-content:center;margin:0}
.article-banner{margin:18px 0;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:#000}
.article-banner img{width:100%;height:auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:50px;padding:0 26px;border-radius:12px;font-weight:700;text-decoration:none;border:1px solid transparent;cursor:pointer;font-size:1rem;transition:background .15s ease,color .15s ease,border-color .15s ease}
.btn-primary{background:var(--blue);color:#fff;border-color:var(--blue)}
.btn-primary:hover{background:#fff;color:#000;border-color:#fff}
.btn-lg{min-height:54px;padding:0 30px;font-size:1.05rem}
.btn-sm{min-height:40px;padding:0 18px;font-size:.85rem;border-radius:999px}
.btn-outline{background:transparent;color:var(--blue);border:2px solid var(--blue)}
.btn-outline:hover{background:#fff;color:#000;border-color:#fff}
.spec-panel{margin:28px auto 0;width:min(760px,calc(100% - 32px));border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--card)}
.spec-panel table{min-width:0;width:100%;background:transparent}
.spec-panel th,.spec-panel td{border-bottom:1px solid var(--line);padding:12px 16px}
.spec-panel tr:nth-child(even){background:#10161f}
.spec-panel th{width:38%;color:var(--muted);font-weight:600;background:transparent}
.spec-panel td{font-weight:700}
.prose{width:min(760px,calc(100% - 32px));margin:0 auto;padding:32px 0 8px}
.prose h2{margin:2rem 0 .7rem;font-size:1.42rem;letter-spacing:-.02em}
.prose h3{margin:1.35rem 0 .4rem;font-size:1.08rem}
.prose p,.prose li{color:#d5dce6}
.prose ul,.prose ol{padding-left:1.15rem}
.prose li{margin:.35rem 0}
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:18px 0 8px}
.feature-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px}
.feature-card h3{margin:10px 0 6px}
.feature-card p{margin:0;color:var(--muted)}
.icon{width:40px;height:40px;border-radius:10px;background:rgba(0,134,255,.12);color:var(--blue);display:grid;place-items:center}
.icon svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.platform-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:18px 0}
.platform-card{display:flex;gap:12px;align-items:center;padding:14px;border:1px solid var(--line);border-radius:14px;background:var(--card);text-decoration:none;color:var(--text)}
.platform-card:hover{border-color:var(--blue);color:#fff}
.platform-card strong{display:block}
.platform-card span{color:var(--muted);font-size:.88rem}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:16px 0;border:1px solid var(--line);border-radius:12px;max-width:100%}
table{width:100%;border-collapse:collapse;min-width:0;background:var(--card)}
.table-wrap table{min-width:520px}
.spec-panel table,.info-table{min-width:0;table-layout:fixed}
.spec-panel th,.spec-panel td,.info-table td,.table-wrap th,.table-wrap td{word-break:break-word;overflow-wrap:anywhere}
th,td{text-align:left;padding:11px 13px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:#18202b;font-size:.9rem}
tr:last-child td{border-bottom:0}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:2px 14px;margin:8px 0}
.faq summary{cursor:pointer;font-weight:700;padding:11px 0;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq details p{margin:0 0 12px;color:var(--muted)}
.cta-band{margin:28px 0 8px;padding:24px;border-radius:16px;background:var(--card);border:1px solid var(--line);text-align:center}
.cta-band h2{margin:0 0 6px}
.cta-band p{margin:0 0 14px;color:var(--muted)}
.form{display:grid;gap:12px;max-width:640px;margin:0 auto}
label{font-weight:600;text-align:left}
input,textarea{width:100%;margin-top:6px;background:var(--bg);color:var(--text);border:1px solid var(--line);border-radius:10px;padding:12px 14px;font:inherit}
textarea{min-height:140px;resize:vertical}
.form-status{color:var(--muted);min-height:1.4em}
.site-footer{margin-top:48px;background:var(--bg2);border-top:1px solid var(--line);padding:40px 0 20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:24px}
.footer-brand{display:flex;gap:12px;align-items:flex-start}
.footer-brand .logo-badge{width:42px;height:42px}
.footer-brand p{color:var(--muted);margin:8px 0 0;font-size:.92rem}
.site-footer h2{margin:0 0 10px;font-size:.92rem}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin:7px 0}
.site-footer a{color:var(--muted);text-decoration:none}
.site-footer a:hover{color:var(--blue)}
.copyright{margin-top:24px;padding-top:14px;border-top:1px solid var(--line);color:#7d8a99;font-size:.88rem}
.page-404{text-align:center;padding:48px 0 16px}
.legal-hero{padding:28px 0 0}
.legal-hero h1{margin:0;font-size:clamp(1.6rem,3vw,2.2rem)}
@media(max-width:900px){
.footer-grid,.feature-grid,.platform-grid{grid-template-columns:1fr}
.hero-actions .btn{width:min(100%,320px)}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center}
.site-nav{position:absolute;top:var(--header);left:0;right:0;z-index:60;background:#0e1218;border-bottom:1px solid var(--line);display:none}
.site-nav.is-open{display:block}
.site-nav ul{flex-direction:column;padding:8px 16px 14px}
.site-nav a{width:100%}
.hero{padding:22px 0 4px}
}
@media(max-width:480px){
.container,.prose,.spec-panel{width:calc(100% - 24px)}
.hero-actions .btn{width:100%}
.spec-panel th,.spec-panel td{padding:10px 12px}
}

/* Homepage layout (InstaUp-style structure, Delta colors) */
body.home .site-header{background:rgba(7,9,13,.96)}
body.home .header-inner{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px}
body.home .site-nav{justify-self:center}
body.home .header-cta{justify-self:end;white-space:nowrap}
body.home .hero{min-height:calc(100dvh - var(--header));display:flex;align-items:center;padding:48px 0 36px}
body.home .hero .container{width:min(760px,calc(100% - 32px))}
body.home .hero h1{font-size:clamp(1.85rem,4.6vw,3rem);font-weight:800;margin-bottom:18px}
body.home .hero h1 .accent{color:var(--blue)}
body.home .hero-logo-box{display:flex;flex-direction:column;align-items:center;gap:12px;margin:0 0 18px}
body.home .hero-logo.logo-badge{width:96px;height:96px;border-radius:22px;border-width:2px;box-shadow:0 12px 36px rgba(0,134,255,.28)}
body.home .hero-logo.logo-badge img{width:64px;height:64px}
body.home .ver-badge{display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:999px;background:rgba(0,134,255,.14);border:1px solid rgba(0,134,255,.35);color:var(--blue);font-size:.82rem;font-weight:700}
body.home .hero-desc{margin:0 auto 24px;max-width:54ch}
body.home .hero-actions{gap:14px;margin-bottom:28px;flex-wrap:wrap}
body.home .hero-stats{display:flex;justify-content:center;gap:36px;flex-wrap:wrap}
body.home .stat-num{font-size:1.55rem;font-weight:800;color:var(--blue);line-height:1.1}
body.home .stat-label{color:var(--muted);font-size:.82rem}
body.home .section{padding:56px 0;scroll-margin-top:calc(var(--header) + 12px)}
body.home .section-head{text-align:center;max-width:640px;margin:0 auto 36px}
body.home .section-label{display:inline-block;color:var(--blue);font-size:.82rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;margin-bottom:10px}
body.home .section-title{margin:0 0 12px;font-size:clamp(1.6rem,3.4vw,2.5rem);letter-spacing:-.03em}
body.home .section-title span{color:var(--blue)}
body.home .section-desc{margin:0;color:var(--muted);font-size:1.05rem}
body.home .features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
body.home .feature-card{text-align:center;padding:22px 18px;border-radius:16px}
body.home .feature-card .icon{width:56px;height:56px;border-radius:16px;margin:0 auto}
body.home .feature-card .icon svg{width:26px;height:26px}
body.home .promo-banner{margin:40px auto 0;max-width:600px;text-align:center}
body.home .promo-banner img{width:100%;border-radius:20px;border:1px solid var(--line)}
body.home .info-wrap{max-width:800px;margin:0 auto}
body.home .info-table{width:100%;min-width:0;border-collapse:collapse;background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden}
body.home .info-table td{padding:15px 22px;border-bottom:1px solid var(--line)}
body.home .info-table tr:last-child td{border-bottom:0}
body.home .info-table td:first-child{color:var(--muted);font-weight:600;width:45%}
body.home .info-table td:last-child{font-weight:700}
body.home .info-cta{text-align:center;margin-top:28px}
body.home .steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
body.home .step-card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px 18px 20px;margin-top:8px}
body.home .step-card::before{counter-increment:step;content:counter(step);position:absolute;top:-12px;left:18px;width:26px;height:26px;border-radius:50%;background:var(--blue);color:#fff;font-size:.75rem;font-weight:800;display:grid;place-items:center}
body.home .step-card h3{margin:8px 0 8px;font-size:1rem}
body.home .step-card p{margin:0;color:var(--muted);font-size:.9rem}
body.home .article-section .prose{padding-top:8px}
body.home .faq-list{max-width:800px;margin:0 auto}
@media(max-width:900px){
body.home .header-inner{display:flex}
body.home .header-cta{order:2;margin-left:auto}
body.home .nav-toggle{order:3}
body.home .site-nav{order:4}
body.home .features-grid,body.home .steps-grid{grid-template-columns:1fr}
body.home .hero{min-height:0;padding:28px 0 20px}
}
@media(max-width:640px){
body.home .info-wrap{max-width:100%;padding:0 12px;box-sizing:border-box}
body.home .info-table{table-layout:auto;display:block;border:0;background:transparent}
body.home .info-table tbody{display:block}
body.home .info-table tr{display:grid;grid-template-columns:1fr;margin-bottom:8px;border:1px solid var(--line);border-radius:12px;background:var(--card);overflow:hidden}
body.home .info-table td{display:block;width:100%;padding:8px 14px}
body.home .info-table td:first-child{width:100%;border-bottom:0;padding-bottom:2px;font-size:.82rem}
body.home .info-table td:last-child{padding-top:2px;padding-bottom:12px}
body.home .table-wrap{overflow:visible;border:0;background:transparent}
body.home .table-wrap table{min-width:0;background:transparent}
body.home .table-wrap thead{display:none}
body.home .table-wrap tbody,body.home .table-wrap tr,body.home .table-wrap td{display:block;width:100%}
body.home .table-wrap tr{margin-bottom:12px;border:1px solid var(--line);border-radius:12px;background:var(--card);overflow:hidden}
body.home .table-wrap td{display:grid;grid-template-columns:38% 1fr;gap:10px;padding:10px 14px}
body.home .table-wrap td::before{content:attr(data-label);color:var(--muted);font-weight:600}
}
@media(max-width:480px){
body.home .hero-actions{flex-direction:column;align-items:center}
body.home .hero-actions .btn{width:100%;max-width:300px}
body.home .hero-stats{gap:22px}
body.home .header-cta{display:none}
body.home .info-table td{padding-left:12px;padding-right:12px}
}