/* Custom Interface Solutions — static site
   Brand: Dart Innovations plum. Sister site of dartinnovations.com. */
:root{
  --plum:#46005a;        /* brand, from the CIS logo */
  --plum-deep:#2a0636;   /* dark surfaces */
  --plum-ink:#1d0f24;    /* body text */
  --violet:#7b3fa0;      /* links on dark, hover */
  --mist:#f5f0f8;        /* soft section background */
  --line:#e6dcec;        /* hairlines */
  --muted:#5f5468;       /* secondary text */
  --relay:#e94d00;       /* DartRelay orange, only on DartRelay content */
  --relay-navy:#011c4c;
  --white:#fff;
  --max:1200px;
  --r-sm:6px; --r-md:10px; --r-lg:16px;
  --shadow:0 24px 60px -24px rgba(42,6,54,.35);
  --font-display:"Plus Jakarta Sans",Inter,system-ui,sans-serif;
  --font-body:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--white);color:var(--plum-ink);font-family:var(--font-body);font-size:16px;line-height:1.65}
img{max-width:100%;height:auto;display:block}
a{color:var(--plum);text-decoration:none}
a:hover{color:var(--violet)}
:focus-visible{outline:3px solid #b46fd8;outline-offset:2px;border-radius:4px}
h1,h2,h3,h4{font-family:var(--font-display);color:var(--plum-ink);letter-spacing:-.025em;line-height:1.12;margin:0 0 .5em;font-weight:800}
h1{font-size:clamp(2.2rem,4.6vw,3.6rem)}
h2{font-size:clamp(1.7rem,3vw,2.5rem)}
h3{font-size:1.2rem;letter-spacing:-.01em;font-weight:700}
p{margin:0 0 1em}
.container{width:min(calc(100% - 32px),var(--max));margin-inline:auto}
@media(min-width:700px){.container{width:min(calc(100% - 64px),var(--max))}}
.skip{position:absolute;left:-999px;top:0;background:var(--plum);color:#fff;padding:10px 14px;z-index:100}
.skip:focus{left:12px;top:12px;color:#fff}
.kicker{display:block;font-size:.9rem;font-weight:700;color:var(--violet);margin-bottom:.6rem}
.lead{font-size:1.15rem;color:var(--muted);max-width:62ch}
.muted{color:var(--muted)}
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section.mist{background:var(--mist)}
.section.dark{background:var(--plum-deep);color:#e9dff0}
.section.dark h2,.section.dark h3{color:#fff}
.section.dark .kicker{color:#d3a9ec}
.section.dark .muted,.section.dark p{color:#cdbfd6}
.section-head{display:grid;grid-template-columns:1fr;gap:12px;margin-bottom:40px;max-width:780px}
.section-head p{color:var(--muted);margin:0}
.section.dark .section-head p{color:#cdbfd6}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 20px;border-radius:var(--r-sm);font-weight:700;font-size:.95rem;border:1px solid transparent;cursor:pointer;line-height:1.2;transition:background .15s,border-color .15s,color .15s}
.btn-primary{background:var(--plum);color:#fff}
.btn-primary:hover{background:#5d0a77;color:#fff}
.btn-outline{border-color:#cdbad8;color:var(--plum);background:#fff}
.btn-outline:hover{border-color:var(--plum);color:var(--plum)}
.btn-light{background:#fff;color:var(--plum)}
.btn-light:hover{background:#f1e6f7;color:var(--plum)}
.btn-ghost-light{border-color:rgba(255,255,255,.4);color:#fff}
.btn-ghost-light:hover{border-color:#fff;color:#fff}
.btn-relay{background:var(--relay);color:#fff}
.btn-relay:hover{background:#c94200;color:#fff}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.text-link{font-weight:700;display:inline-flex;gap:6px;align-items:center}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:76px;gap:20px}
.brand img{width:190px;height:auto}
.nav{display:flex;align-items:center;gap:4px}
.nav>ul{display:flex;list-style:none;margin:0;padding:0;gap:2px;align-items:center}
.nav-item{position:relative}
.nav-link{display:flex;align-items:center;gap:6px;padding:10px 12px;border-radius:var(--r-sm);font-weight:600;font-size:.94rem;color:var(--plum-ink);background:none;border:0;font-family:inherit;cursor:pointer}
.nav-link:hover,.nav-item.open>.nav-link{color:var(--plum);background:var(--mist)}
.nav-link[aria-current="page"]{color:var(--plum)}
.chev{width:9px;height:9px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .2s}
.nav-item.open .chev{transform:rotate(-135deg) translateY(-1px)}
.nav-cta{margin-left:10px}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.menu-toggle span{display:block;width:20px;height:2px;background:var(--plum-ink);transition:transform .2s,opacity .2s}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Dropdowns */
.dropdown{position:absolute;top:calc(100% + 10px);left:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow);padding:10px;min-width:230px;display:none}
.nav-item.open>.dropdown{display:block}
.dropdown a{display:block;padding:9px 12px;border-radius:var(--r-sm);color:var(--plum-ink);font-size:.93rem;font-weight:500}
.dropdown a:hover{background:var(--mist);color:var(--plum)}
.mega{left:50%;transform:translateX(-38%);width:min(1060px,calc(100vw - 48px));padding:26px;display:none;grid-template-columns:repeat(4,1fr) 1.25fr;gap:22px}
.nav-item.open>.mega{display:grid}
.mega-col h4{font-size:.8rem;color:var(--muted);font-family:var(--font-body);font-weight:700;letter-spacing:0;margin:4px 12px 8px}
.mega-col h4 a{padding:0;color:inherit;font-weight:700;font-size:.8rem;display:inline}
.mega-col h4 a:hover{background:none;color:var(--plum)}
.mega-col a{padding:8px 12px}
.mega-col.relay h4{color:var(--relay)}
.mega-card{background:var(--plum-deep);color:#e8dcef;border-radius:var(--r-md);padding:20px;display:flex;flex-direction:column;gap:10px}
.mega-card img{border-radius:var(--r-sm);aspect-ratio:16/8;object-fit:cover;width:100%}
.mega-card strong{font-family:var(--font-display);font-size:1.05rem;color:#fff}
.mega-card p{font-size:.85rem;line-height:1.5;margin:0;color:#d6c6df}
.mega-card .btn{align-self:flex-start;padding:9px 14px;font-size:.85rem;margin-top:4px}
.mega-card a.btn:hover{background:#f1e6f7}

@media(max-width:1080px){
  .site-header{backdrop-filter:none;-webkit-backdrop-filter:none;background:#fff}
  .menu-toggle{display:flex}
  .nav{position:fixed;inset:76px 0 0 0;background:#fff;display:none;flex-direction:column;align-items:stretch;overflow-y:auto;padding:12px 16px 40px;border-top:1px solid var(--line)}
  .nav.open{display:flex}
  .nav>ul{flex-direction:column;align-items:stretch}
  .nav-link{width:100%;justify-content:space-between;padding:14px 8px;font-size:1rem;border-radius:0;border-bottom:1px solid var(--line)}
  .dropdown,.mega{position:static;transform:none;box-shadow:none;border:0;width:auto;min-width:0;padding:6px 0 12px 8px}
  .nav-item.open>.mega{display:block}
  .mega-col{margin-bottom:10px}
  .mega-card{margin-top:8px}
  .mega-card img{display:none}
  .nav-cta{margin:18px 0 0}
  .nav-cta .btn{width:100%;justify-content:center}
  body.nav-open{overflow:hidden}
}

/* Breadcrumb */
.crumbs{font-size:.85rem;color:var(--muted);margin-bottom:18px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--plum)}
.crumbs span{margin:0 6px;color:#b8a9c2}

/* Home hero */
.hero{position:relative;overflow:hidden;padding:64px 0 56px;background:
  radial-gradient(900px 500px at 92% 10%,#efe2f6 0,rgba(239,226,246,0) 60%),#fff}
.hero-grid{display:grid;grid-template-columns:1.02fr 1fr;gap:56px;align-items:center}
.hero h1{max-width:13ch}
.hero .lead{margin-top:6px}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:30px;max-width:560px}
.hero-meta a{font-size:.85rem;font-weight:600;padding:6px 12px;border:1px solid var(--line);border-radius:999px;color:var(--plum-ink);background:#fff}
.hero-meta a:hover{border-color:var(--plum);color:var(--plum)}

/* The signature: a portal being re-skinned. Stack of real branded portals. */
.reskin{position:relative;aspect-ratio:16/11.2}
.window{position:relative;background:#fff;border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow);border:1px solid #e3d7ea}
.window-bar{display:flex;align-items:center;gap:6px;height:30px;padding:0 12px;background:#f6f1f9;border-bottom:1px solid #e9def0;font-size:.72rem;color:var(--muted)}
.window-bar i{width:9px;height:9px;border-radius:50%;background:#d9cbe2;display:block}
.window-bar b{margin-left:10px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.window img{width:100%;aspect-ratio:16/9.4;object-fit:cover;object-position:top}
.reskin .window{position:absolute}
.reskin .w1{width:78%;right:0;top:0;z-index:1}
.reskin .w2{width:66%;left:0;top:30%;z-index:2}
.reskin .w3{width:56%;right:6%;bottom:0;z-index:3}
.reskin-label{position:absolute;left:0;bottom:-2%;z-index:4;background:var(--plum-deep);color:#fff;border-radius:var(--r-sm);padding:10px 14px;font-size:.82rem;line-height:1.35;max-width:220px}
.reskin-label strong{display:block;font-family:var(--font-display);font-size:.95rem}
@media (prefers-reduced-motion:no-preference){
  .reskin .window{animation:rise .9s cubic-bezier(.2,.7,.2,1) both}
  .reskin .w2{animation-delay:.15s}.reskin .w3{animation-delay:.3s}
  @keyframes rise{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
}

/* Page hero (inner pages) */
.page-hero{padding:48px 0 64px;background:linear-gradient(180deg,var(--mist),#fff)}
.page-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.page-hero h1{font-size:clamp(2rem,4vw,3.1rem)}
.page-hero.simple .page-hero-grid{grid-template-columns:1fr}
.page-hero.simple{padding-bottom:24px}
.page-hero.simple+.section{padding-top:56px}
.page-hero .shot{border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow);border:1px solid #e3d7ea;background:#fff}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;padding:0;list-style:none}
.tags li{font-size:.82rem;font-weight:600;padding:5px 11px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--muted)}

/* Prose */
.prose{max-width:74ch}
.prose p,.prose li{color:#3d3346}
.prose h2{font-size:1.7rem;margin-top:1.6em}
.prose h3{margin-top:1.4em}
.prose ul,.prose ol{padding-left:1.25em}
.prose li{margin-bottom:.35em}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.two-col.wide-left{grid-template-columns:1.25fr .75fr}

/* Interface grid (home) */
.iface-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.iface{display:flex;flex-direction:column;gap:8px;padding:28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);color:var(--plum-ink);background:#fff;transition:background .15s}
.iface:hover{background:var(--mist);color:var(--plum-ink)}
.iface small{font-size:.8rem;font-weight:700;color:var(--violet)}
.iface h3{margin:0}
.iface p{font-size:.94rem;color:var(--muted);margin:0}
.iface .text-link{margin-top:auto;padding-top:8px;font-size:.9rem;color:var(--plum)}
.iface.relay small{color:var(--relay)}

/* Feature list */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0 40px}
.feature{padding:24px 0;border-top:1px solid var(--line)}
.feature h3{font-size:1.05rem;margin-bottom:6px;display:flex;gap:10px;align-items:baseline}
.feature h3::before{content:"";flex:none;width:8px;height:8px;border-radius:2px;background:var(--plum);transform:translateY(-1px)}
.feature p{font-size:.94rem;color:var(--muted);margin:0}
.section.dark .feature{border-color:#4a2a58}

/* Showcase (demo screenshots) */
.showcase{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.showcase figure{margin:0}
.showcase figcaption{font-size:.85rem;color:var(--muted);margin-top:10px}
.demo-bar{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;margin-top:26px;padding:20px 24px;border:1px solid var(--line);border-radius:var(--r-md);background:#fff}
.demo-bar p{margin:0;color:var(--muted);font-size:.95rem}

/* Options / packages list */
.options{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin:26px 0 0;padding:0;list-style:none}
.options li{padding:18px 20px;border:1px solid var(--line);border-radius:var(--r-md);background:#fff}
.options strong{display:block;font-family:var(--font-display)}
.options span{font-size:.9rem;color:var(--muted)}

/* Process (a real sequence) */
.process{display:grid;grid-template-columns:repeat(3,1fr);gap:0;counter-reset:step;border-top:1px solid #4a2a58}
.step{padding:28px 28px 28px 0;border-bottom:1px solid #4a2a58;counter-increment:step}
.step::before{content:counter(step);display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;border:1px solid #8d5fa8;color:#e7d5f2;font-weight:700;font-size:.9rem;margin-bottom:14px}
.step h3{font-size:1.08rem}
.step p{font-size:.93rem;margin:0}

/* Includes band */
.includes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.include{padding:26px;border-radius:var(--r-md);background:#fff;border:1px solid var(--line)}
.include h3{font-size:1.05rem}
.include p{margin:0;color:var(--muted);font-size:.94rem}

/* FAQ */
.faq{max-width:860px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:20px 40px 20px 0;font-weight:700;font-family:var(--font-display);font-size:1.05rem;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:8px;top:26px;width:10px;height:10px;border-right:2px solid var(--plum);border-bottom:2px solid var(--plum);transform:rotate(45deg);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(-135deg);top:30px}
.faq details p{color:var(--muted);margin:0 0 20px;max-width:72ch}

/* Cards: portfolio, demos, blog */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.card{display:flex;flex-direction:column;color:var(--plum-ink)}
.card:hover{color:var(--plum-ink)}
.card-media{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);background:var(--mist);aspect-ratio:16/10}
.card-media img{width:100%;height:100%;object-fit:cover;object-position:top;transition:transform .35s}
.card:hover .card-media img{transform:scale(1.03)}
.card h3{font-size:1.02rem;margin:14px 0 4px}
.card p{font-size:.88rem;color:var(--muted);margin:0}
.card .meta{font-size:.8rem;font-weight:600;color:var(--violet)}
.card-actions{display:flex;gap:16px;margin-top:10px;font-size:.9rem;font-weight:700}
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:32px}
.filters button{font:inherit;font-size:.88rem;font-weight:600;padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--plum-ink);cursor:pointer}
.filters button[aria-pressed="true"]{background:var(--plum);border-color:var(--plum);color:#fff}
.post-list{display:grid;grid-template-columns:1fr;border-top:1px solid var(--line)}
.post-row{display:grid;grid-template-columns:150px 1fr;gap:28px;padding:24px 0;border-bottom:1px solid var(--line);color:var(--plum-ink);align-items:start}
.post-row:hover{color:var(--plum-ink)}
.post-row:hover h3{color:var(--plum)}
.post-row time{font-size:.85rem;color:var(--muted);padding-top:3px}
.post-row h3{margin:0 0 6px;font-size:1.15rem}
.post-row p{margin:0;color:var(--muted);font-size:.94rem}

/* Clients */
.logo-wall{display:grid;grid-template-columns:repeat(8,1fr);gap:1px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.logo-wall div{background:#fff;display:grid;place-items:center;padding:16px;aspect-ratio:2.2/1}
.logo-wall img{max-height:44px;width:auto;filter:grayscale(1);opacity:.75;transition:filter .2s,opacity .2s}
.logo-wall div:hover img{filter:none;opacity:1}

/* Portfolio project */
.project-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:48px;align-items:start}
.gallery-main{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);background:var(--mist)}
.gallery-main img{width:100%}
.gallery-thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(92px,1fr));gap:10px;margin-top:12px}
.gallery-thumbs button{padding:0;border:2px solid transparent;border-radius:var(--r-sm);overflow:hidden;cursor:pointer;background:var(--mist);aspect-ratio:16/10}
.gallery-thumbs button[aria-current="true"]{border-color:var(--plum)}
.gallery-thumbs img{width:100%;height:100%;object-fit:cover;object-position:top}
.gallery-caption{font-size:.85rem;color:var(--muted);margin-top:10px;min-height:1.4em}
.info{border-top:2px solid var(--plum)}
.info div{padding:16px 0;border-bottom:1px solid var(--line)}
.info dt{font-size:.82rem;font-weight:700;color:var(--muted);margin-bottom:4px}
.info dd{margin:0;white-space:pre-line}
.pager{display:flex;justify-content:space-between;gap:20px;margin-top:56px;padding-top:24px;border-top:1px solid var(--line);font-weight:700;font-size:.95rem}
.pager a{max-width:46%}
.pager small{display:block;font-weight:600;color:var(--muted);font-size:.78rem}

/* Article */
.article{max-width:780px}
.article h4{font-size:1.15rem;margin-top:1.8em}
.article-meta{color:var(--muted);font-size:.9rem;margin-bottom:28px}
.article img{border-radius:var(--r-sm);border:1px solid var(--line);margin:18px 0}
.article pre{background:var(--plum-deep);color:#f2e9f7;padding:16px 18px;border-radius:var(--r-sm);overflow-x:auto;font-size:.88rem;line-height:1.55}
.article code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.9em}
.article :not(pre)>code{background:var(--mist);padding:2px 6px;border-radius:4px}
.article table{border-collapse:collapse;width:100%;font-size:.92rem;margin:18px 0;display:block;overflow-x:auto}
.article td,.article th{border:1px solid var(--line);padding:8px 10px;text-align:left}
.article blockquote,.article .note{margin:20px 0;padding:14px 18px;border-left:3px solid var(--plum);background:var(--mist);border-radius:0 var(--r-sm) var(--r-sm) 0}
.article iframe{width:100%;aspect-ratio:16/9;border:0;border-radius:var(--r-sm)}

/* CTA band */
.cta-band{background:var(--plum);color:#fff;border-radius:var(--r-lg);padding:52px;display:grid;grid-template-columns:1.3fr auto;gap:32px;align-items:center}
.cta-band h2{color:#fff;margin:0 0 8px;font-size:clamp(1.6rem,2.6vw,2.2rem)}
.cta-band p{margin:0;color:#e5d3ef;max-width:56ch}
.cta-band .actions{margin:0}

/* DartRelay */
.relay-hero{background:linear-gradient(160deg,#fff 0,#fff4ee 100%)}
.relay-hero .kicker{color:var(--relay)}
.relay-logo{width:min(340px,80%);margin-bottom:22px}
.relay-points{display:grid;grid-template-columns:repeat(3,1fr);gap:0 40px}
.relay-points .feature h3::before{background:var(--relay)}
.trial-band{background:var(--relay-navy);color:#fff;border-radius:var(--r-lg);padding:48px 52px;display:grid;grid-template-columns:1.3fr auto;gap:32px;align-items:center}
.trial-band h2{color:#fff;margin-bottom:8px}
.trial-band p{color:#c9d3e6;margin:0}
.relay-mini{display:grid;grid-template-columns:auto 1fr auto;gap:28px;align-items:center;padding:28px 32px;border:1px solid #f3d5c4;background:#fff8f4;border-radius:var(--r-lg)}
.relay-mini img{width:210px}
.relay-mini p{margin:0;color:var(--muted)}

/* Engineer page */
.cert-row{display:flex;flex-wrap:wrap;gap:18px;align-items:center}
.cert-row img{height:58px;width:auto}
.check-list{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.check-list li{padding-left:28px;position:relative;color:#3d3346}
.check-list li::before{content:"";position:absolute;left:2px;top:.45em;width:12px;height:7px;border-left:2px solid var(--plum);border-bottom:2px solid var(--plum);transform:rotate(-45deg)}

/* Contact form */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-grid .full{grid-column:1/-1}
.field{display:flex;flex-direction:column;gap:7px;font-size:.88rem;font-weight:700;color:var(--plum-ink)}
.field .req{color:#b0124f}
.field input,.field textarea,.field select{font:inherit;font-size:.96rem;font-weight:400;color:var(--plum-ink);border:1px solid #d6c8df;border-radius:var(--r-sm);padding:12px 13px;background:#fff;width:100%}
.field textarea{min-height:140px;resize:vertical}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--plum);box-shadow:0 0 0 3px rgba(70,0,90,.12)}
fieldset.interests{border:1px solid var(--line);border-radius:var(--r-sm);padding:14px 16px;margin:0}
fieldset.interests legend{font-size:.88rem;font-weight:700;padding:0 6px}
.interest-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:6px 18px}
.interest-grid label{display:flex;gap:8px;align-items:flex-start;font-size:.9rem;font-weight:500;cursor:pointer}
.interest-grid input{margin-top:5px;accent-color:var(--plum)}
.captcha-row{display:flex;gap:12px;align-items:center}
.captcha-q{font-weight:700;background:var(--mist);padding:11px 14px;border-radius:var(--r-sm);white-space:nowrap}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-status{margin-top:14px;font-weight:600;min-height:1.4em}
.form-status.ok{color:#11753a}
.form-status.err{color:#b0124f}
.contact-modal{position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;padding:16px}
.contact-modal.open{display:flex}
.contact-modal-backdrop{position:absolute;inset:0;background:rgba(29,15,36,.7)}
.contact-modal-dialog{position:relative;background:#fff;border-radius:var(--r-lg);width:min(760px,100%);max-height:calc(100vh - 32px);overflow:auto;padding:36px}
.contact-modal-close{position:absolute;top:10px;right:12px;width:40px;height:40px;border:0;background:none;font-size:28px;line-height:1;cursor:pointer;color:var(--muted);border-radius:50%}
.contact-modal-close:hover{background:var(--mist)}
.contact-modal h2{font-size:1.9rem}

/* Footer */
.footer{border-top:1px solid var(--line);padding:44px 0 28px;margin-top:0}
.footer-top{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;align-items:flex-start}
.footer-brand img{width:170px}
.footer-brand p{font-size:.9rem;color:var(--muted);margin:12px 0 0;max-width:36ch}
.footer-links{display:flex;flex-wrap:wrap;gap:10px 26px;font-size:.92rem;font-weight:600}
.footer-links a{color:var(--plum-ink)}
.footer-links a:hover{color:var(--plum)}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;margin-top:36px;padding-top:20px;border-top:1px solid var(--line);font-size:.84rem;color:var(--muted);align-items:center}
.social{display:flex;gap:10px}
.social a{width:36px;height:36px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;color:var(--plum)}
.social a:hover{border-color:var(--plum)}
.social svg{width:16px;height:16px;fill:currentColor}

/* 404 */
.notfound{padding:120px 0;text-align:left}

/* Responsive */
@media(max-width:1000px){
  .hero-grid,.page-hero-grid,.two-col,.two-col.wide-left,.project-grid{grid-template-columns:1fr;gap:40px}
  .iface-grid,.card-grid,.feature-grid,.relay-points{grid-template-columns:repeat(2,1fr)}
  .process,.includes{grid-template-columns:1fr 1fr}
  .logo-wall{grid-template-columns:repeat(5,1fr)}
  .cta-band,.trial-band{grid-template-columns:1fr;padding:36px}
  .relay-mini{grid-template-columns:1fr}
  .reskin{max-width:640px}
}
@media(max-width:640px){
  .section{padding:60px 0}
  .iface-grid,.card-grid,.feature-grid,.relay-points,.process,.includes,.showcase,.form-grid,.interest-grid{grid-template-columns:1fr}
  .logo-wall{grid-template-columns:repeat(3,1fr)}
  .post-row{grid-template-columns:1fr;gap:4px}
  .cta-band,.trial-band{padding:28px 22px}
  .contact-modal-dialog{padding:26px 20px}
  .reskin-label{display:none}
  .hero{padding:44px 0 60px}
  .step{padding-right:0}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}

/* Blog sidebar banners */
.blog-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start}
.blog-aside{position:sticky;top:100px;display:flex;flex-direction:column;gap:20px}
.promo{display:block;border-radius:var(--r-lg);color:inherit}
.promo:hover{color:inherit}
.promo-relay{background:linear-gradient(165deg,#fff 0,#fff3ec 100%);border:1px solid #f3d5c4;padding:26px 24px}
.promo-relay img{width:190px;margin-bottom:18px}
.promo-relay strong{display:block;font-family:var(--font-display);font-size:1.3rem;line-height:1.2;color:var(--relay-navy);letter-spacing:-.02em;margin-bottom:10px}
.promo-relay p{font-size:.9rem;color:var(--muted);margin:0 0 14px}
.promo-relay ul{list-style:none;margin:0 0 20px;padding:0;display:grid;gap:8px}
.promo-relay li{font-size:.88rem;padding-left:20px;position:relative;color:#2b2f45}
.promo-relay li::before{content:"";position:absolute;left:2px;top:.45em;width:9px;height:5px;border-left:2px solid var(--relay);border-bottom:2px solid var(--relay);transform:rotate(-45deg)}
.promo-btn{display:block;text-align:center;background:var(--relay);color:#fff;font-weight:700;font-size:.92rem;padding:12px 16px;border-radius:var(--r-sm);transition:background .15s}
.promo-relay:hover .promo-btn{background:#c94200}
.promo-link{display:block;text-align:center;margin-top:10px;font-size:.85rem;font-weight:700;color:var(--relay-navy)}
.promo-adweb{background:#ebedec;border:1px solid #dfe2e1;padding:18px 20px;text-align:center;transition:border-color .15s}
.promo-adweb:hover{border-color:#b9c0bd}
.promo-adweb img{width:150px;margin:0 auto 10px}
.promo-adweb strong{display:block;font-size:.9rem;line-height:1.35;color:#111}
.blog-layout .article{max-width:none}
@media(max-width:1000px){
  .blog-layout{grid-template-columns:1fr;gap:40px}
  .blog-aside{position:static;display:grid;grid-template-columns:1fr 1fr;align-items:start}
}
@media(max-width:640px){.blog-aside{grid-template-columns:1fr}}

/* Demos: two columns, DartRelay card spans the row */
.card-grid.demo-grid{grid-template-columns:repeat(2,1fr);gap:44px 36px}
.demo-grid .card h3{font-size:1.2rem}
.demo-relay{grid-column:1/-1;display:grid;grid-template-columns:300px 1fr;gap:36px;align-items:center;padding:30px 36px;border:1px solid #f3d5c4;background:linear-gradient(165deg,#fff 0,#fff3ec 100%);border-radius:var(--r-lg)}
.demo-relay[hidden],.card[hidden]{display:none}
.demo-relay .meta{color:var(--relay);font-size:.8rem;font-weight:600}
.demo-relay h3{font-size:1.35rem;margin:4px 0 8px;color:var(--relay-navy)}
.demo-relay p{margin:0;color:var(--muted)}
.demo-relay .card-actions a{color:var(--relay)}
@media(max-width:760px){.card-grid.demo-grid{grid-template-columns:1fr}.demo-relay{grid-template-columns:1fr;gap:18px;padding:24px}.demo-relay img{width:220px}}
.meta.meta-relay{color:var(--relay)}
.demo-grid .card-media img{object-position:center top}