:root{
  --surface:#0a0d12;--surface-raised:#0f131a;--surface-2:#0b1018;--surface-3:#10161f;
  --border:#1c222c;--border-strong:#2a3140;--text:#e6e8ec;--muted:#a7adbb;--dim:#707889;
  --accent:#60a5fa;--accent-2:#3b82f6;--danger:#ef4444;--ok:#10b981;
}
*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--surface)}body{margin:0;color:var(--text);font-family:Inter,system-ui,sans-serif;background:transparent}
a{color:inherit;text-decoration:none}img{display:block;max-width:100%}
.container{width:min(1200px,100% - 48px);margin:0 auto}
.mono,.mono-label,.tiny{font-family:"JetBrains Mono",monospace}
.mono-label{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--dim)}
.tiny{font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}

.mouse-gradient{position:fixed;inset:0;pointer-events:none;z-index:-1;--mx:50%;--my:20%;--tx:50%;--ty:20%;
  background:
  radial-gradient(520px 520px at var(--mx) var(--my),rgba(96,165,250,.18),rgba(96,165,250,.08) 35%,transparent 65%),
  radial-gradient(900px 900px at var(--tx) var(--ty),rgba(59,130,246,.1),transparent 60%),
  radial-gradient(1400px 1000px at 50% -10%,rgba(59,130,246,.08),transparent 70%);
}

.site-header{position:sticky;top:0;z-index:50;background:rgba(10,13,18,.55);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:.2s}
.site-header.is-scrolled{background:rgba(10,13,18,.82);border-color:var(--border)}
.top-strip{border-bottom:1px solid var(--border);background:var(--surface-2)}
.top-strip-inner{display:flex;align-items:center;gap:16px;padding:6px 0}
.strip-pin{font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--dim);white-space:nowrap}
.strip-marquee-wrap{flex:1;overflow:hidden}
.strip-marquee{display:flex;gap:32px;min-width:max-content;list-style:none;padding:0;margin:0;font-size:11.5px;color:var(--muted)}
.strip-marquee li{display:flex;align-items:center;gap:8px;white-space:nowrap}
.dot{width:4px;height:4px;border-radius:999px;background:var(--accent);display:inline-block}
.ticker-scroll{animation:ticker-scroll 55s linear infinite}
@keyframes ticker-scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

.nav-main{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px 0}
.brand{display:inline-flex;align-items:center;gap:12px}.brand-text{font-size:19px;font-weight:600;letter-spacing:-.02em}
.brand-sep{width:1px;height:28px;background:var(--border-strong)}
.brand-partner{display:inline-flex;align-items:center;gap:10px}
.brand-note{font-size:9.5px;line-height:1.1;letter-spacing:.18em;text-transform:uppercase;color:var(--dim)}
.brand-nxlogo{display:inline-flex;align-items:center;flex-shrink:0}
.brand-nxlogo img{height:32px;width:auto;max-width:min(220px,42vw)}
@media (min-width:640px){.brand-nxlogo img{height:36px}}
.nav-links{display:flex;gap:28px;list-style:none;padding:0;margin:0}.nav-links a{font-size:13.5px;color:var(--muted)}.nav-links a:hover{color:var(--text)}
.nav-ctas{display:flex;gap:10px}.mobile-menu-btn{display:none}
.mobile-menu{border-top:1px solid var(--border);background:var(--surface-raised)}.mobile-menu ul{list-style:none;padding:16px 0;margin:0}.mobile-menu li{margin-bottom:6px}
.mobile-menu a{display:block;padding:12px;border-radius:8px;color:var(--muted)}.mobile-menu a:hover{background:var(--surface-3);color:var(--text)}
.mobile-ctas{display:grid;gap:8px;padding-top:8px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 20px;font-size:14px;font-weight:500;transition:.2s}
.btn-primary{background:var(--accent);color:#0a0d12}.btn-primary:hover{background:#7bb3fb;transform:translateY(-1px)}
.btn-secondary{border:1px solid var(--border-strong);color:var(--text)}.btn-secondary:hover{border-color:var(--accent);color:var(--accent)}
.btn-ghost{color:var(--muted)}.btn-ghost:hover{color:var(--text)}

.section{position:relative}.section .container{padding:96px 0}.tone-raised{background:var(--surface-raised)}
.section-heading{max-width:760px}.section-heading h2{font-size:clamp(30px,4vw,42px);line-height:1.15;margin:0;letter-spacing:-.01em}
.section-heading h2 span{color:var(--muted)}.section-desc{margin-top:16px;color:var(--muted);font-size:17px;line-height:1.65}

.video-embed-shell{margin-top:48px}.video-embed-ratio{position:relative;padding-bottom:56.25%;height:0;overflow:hidden;border-radius:12px;border:1px solid var(--border);background:var(--surface-3);box-shadow:0 24px 60px -32px rgba(0,0,0,.65)}.video-embed-ratio iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:0}.video-note{margin-top:14px;color:var(--dim);font-size:13px;line-height:1.55;margin-bottom:0}

.case-study-frame,.qnb-case-frame{margin-top:48px;border-radius:14px;border:1px solid var(--border);background:var(--surface-raised);padding:32px}
.case-study-quote{border-left:4px solid var(--accent);padding-left:20px;margin:32px 0 0}
.case-study-quote p{margin:0;line-height:1.7;color:var(--text);font-size:15px;font-style:italic}
.case-study-meta{color:var(--muted);font-size:13px;margin-top:22px;margin-bottom:0;line-height:1.7}
.case-study-meta strong{color:var(--text)}
.case-study-ext{margin-top:24px;margin-bottom:0}
.case-study-ext a{color:var(--accent-2);font-weight:500;font-size:14px;text-decoration:none;transition:color .2s}
.case-study-ext a:hover{color:var(--accent)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);border:0;white-space:nowrap}

/* ============================================================
   QNB Türkiye Use Case — extended layout
   ============================================================ */
.qnb-meta-strip{
  display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;
  padding:18px 20px;margin:-8px -8px 28px;
  border:1px dashed var(--border);border-radius:10px;background:var(--surface);
}
.qnb-meta-strip>div{display:flex;flex-direction:column;gap:4px;min-width:0}
.qnb-meta-strip .mono-label{margin:0}
.qnb-meta-strip strong{color:var(--text);font-size:14px;font-weight:600;letter-spacing:-.01em}

.qnb-storyboard{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.qnb-step{
  position:relative;border:1px solid var(--border);background:var(--surface);
  border-radius:12px;padding:22px 22px 24px;display:flex;flex-direction:column;gap:14px;
  transition:border-color .25s,transform .25s,box-shadow .25s,background .25s;
}
.qnb-step:hover{transform:translateY(-2px);border-color:var(--border-strong);box-shadow:0 16px 40px -28px rgba(96,165,250,.45)}
.qnb-step header{display:flex;flex-direction:column;gap:8px}
.qnb-step-tag{
  font-family:"JetBrains Mono",monospace;font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--dim);display:inline-block;
}
.qnb-step h3{margin:0;font-size:18px;line-height:1.35;color:var(--text)}
.qnb-step p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
.qnb-step p em{font-style:italic;color:var(--text)}
.qnb-step p code{
  font-family:"JetBrains Mono",monospace;font-size:12.5px;
  padding:1px 6px;border-radius:4px;background:rgba(96,165,250,.10);
  color:var(--accent);border:1px solid rgba(96,165,250,.25);
}
.qnb-step.is-problem{border-top:2px solid #f87171}
.qnb-step.is-problem .qnb-step-tag{color:#f87171}
.qnb-step.is-solution{border-top:2px solid var(--accent);background:linear-gradient(180deg,rgba(96,165,250,.06),transparent 60%)}
.qnb-step.is-solution .qnb-step-tag{color:var(--accent)}
.qnb-step.is-outcome{border-top:2px solid #34d399}
.qnb-step.is-outcome .qnb-step-tag{color:#34d399}

.qnb-stats{
  list-style:none;padding:0;margin:28px 0 0;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;
}
.qnb-stats li{
  display:flex;flex-direction:column;gap:6px;align-items:flex-start;
  padding:18px 20px;border:1px solid var(--border);background:var(--surface);border-radius:10px;
  transition:border-color .2s,background .2s,transform .2s;
}
.qnb-stats li:hover{border-color:var(--accent);background:rgba(96,165,250,.06);transform:translateY(-2px)}
.qnb-stats li strong{font-family:"JetBrains Mono",monospace;font-size:28px;letter-spacing:-.02em;color:var(--text);line-height:1}
.qnb-stats li span{color:var(--muted);font-size:12.5px;line-height:1.5}

.qnb-source-line{font-size:12px;color:var(--dim)}

.qnb-cd-note{
  margin-top:28px;padding:24px 28px;border:1px solid var(--border);border-left:3px solid var(--accent);
  border-radius:10px;background:var(--surface);
}
.qnb-cd-note .mono-label{margin-bottom:10px}
.qnb-cd-note p{margin:0 0 12px;color:var(--muted);font-size:14px;line-height:1.7}
.qnb-cd-note p:last-child{margin-bottom:0}
.qnb-cd-note .qnb-disclaimer{font-size:12.5px;color:var(--dim);padding-top:12px;border-top:1px solid var(--border);margin-top:14px}

@media(max-width:960px){
  .qnb-meta-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .qnb-storyboard{grid-template-columns:1fr}
  .qnb-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:520px){
  .qnb-meta-strip{grid-template-columns:1fr}
  .qnb-stats{grid-template-columns:1fr}
  .case-study-frame,.qnb-case-frame{padding:22px}
}

.hero{position:relative;overflow:hidden}
.hero-grid-bg{position:absolute;inset:0;opacity:.35;background-image:linear-gradient(to right,rgba(96,165,250,.055) 1px,transparent 1px),linear-gradient(to bottom,rgba(96,165,250,.055) 1px,transparent 1px);background-size:64px 64px;mask-image:radial-gradient(ellipse 80% 60% at 50% 20%,#000 20%,transparent 70%)}
.hero-inner{padding:84px 0 108px;display:grid;grid-template-columns:1fr minmax(360px,520px);gap:56px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:10px;border:1px solid var(--border-strong);padding:8px 12px;border-radius:999px;background:var(--surface-3);font-size:12px;color:var(--muted);margin-bottom:24px}
.pulse-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;animation:pulse-dot 2.8s ease-in-out infinite}
@keyframes pulse-dot{0%,100%{opacity:.35;transform:scale(.85)}50%{opacity:1;transform:scale(1)}}
.v-sep{width:1px;height:14px;background:var(--border-strong)}
.hero h1{font-size:clamp(40px,6vw,62px);line-height:1.05;letter-spacing:-.02em;margin:0}.hero h1 span{color:var(--accent)}
.hero p{margin-top:24px;color:var(--muted);font-size:18px;line-height:1.65;max-width:620px}
.hero-ctas{margin-top:28px;display:flex;gap:10px;flex-wrap:wrap}
.hero-meta{margin:28px 0 0;padding:0;list-style:none;display:flex;gap:22px;flex-wrap:wrap;color:var(--muted);font-size:12.5px}

.pipeline-card{border:1px solid var(--border-strong);border-radius:14px;background:var(--surface-2);overflow:hidden;box-shadow:inset 0 1px 0 rgba(255,255,255,.04),0 24px 56px -28px rgba(0,0,0,.65)}
.pipeline-head,.pipeline-foot{padding:12px 16px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}
.pipeline-foot{border-top:1px solid var(--border);border-bottom:0;font-size:10px;color:var(--dim);text-transform:uppercase;letter-spacing:.16em}
.pipeline-body{padding:20px;display:grid;grid-template-columns:1fr auto 1.2fr auto 1fr;gap:8px}
.pipeline-col-title{font-size:10px;color:var(--dim);text-transform:uppercase;letter-spacing:.2em;margin-bottom:8px}
.pipeline-col-title.right{text-align:right}
.pipeline-pill{display:flex;align-items:center;gap:8px;border:1px solid var(--border);background:var(--surface-3);border-radius:8px;padding:8px 10px;font-size:12px;color:var(--muted);margin-bottom:8px}
.pipeline-pill.right{justify-content:flex-end}.pipeline-pill.core{border-color:var(--border-strong)}
.signal-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;animation:signal-pulse 2.6s ease-in-out infinite}
.signal-dot.d-0{animation-delay:0}.signal-dot.d-1{animation-delay:.2s}.signal-dot.d-2{animation-delay:.4s}.signal-dot.d-3{animation-delay:.6s}.signal-dot.d-4{animation-delay:.8s}.signal-dot.d-5{animation-delay:1s}
@keyframes signal-pulse{0%,100%{opacity:.3;transform:scale(.8)}50%{opacity:1;transform:scale(1.2)}}
.pipeline-connector{position:relative;width:12px}.pipeline-connector::before{content:"";position:absolute;left:50%;top:0;bottom:0;transform:translateX(-50%);width:1px;background:linear-gradient(180deg,transparent,var(--border-strong) 15%,var(--border-strong) 85%,transparent)}
.packet{position:absolute;left:50%;top:0;transform:translateX(-50%);width:1px;height:22px;background:linear-gradient(180deg,transparent,var(--accent) 45%,transparent);animation:packet-flow 3.4s linear infinite}
.packet.d-1{animation-delay:1.1s}.packet.d-2{animation-delay:2.2s}
@keyframes packet-flow{0%{transform:translate(-50%,-100%);opacity:0}15%,85%{opacity:1}100%{transform:translate(-50%,220%);opacity:0}}

.cards{margin-top:56px;display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{border:1px solid var(--border);background:var(--surface-raised);border-radius:12px;padding:24px;display:flex;flex-direction:column;gap:12px}
.tone-raised .card{background:var(--surface)}
.card h3{margin:0;font-size:20px;line-height:1.3}.card p{margin:0;color:var(--muted);line-height:1.65}
.pillar-stat{margin-top:auto;padding-top:16px;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}
.pillar-stat strong{font-family:"JetBrains Mono",monospace;font-size:18px}

.architecture-box{margin-top:56px;border:1px solid var(--border-strong);border-radius:14px;background:var(--surface-2);overflow:hidden}
.architecture-head{display:grid;grid-template-columns:1fr 1.3fr 1fr;border-bottom:1px solid var(--border)}
.architecture-head div{padding:16px 20px;font-family:"JetBrains Mono",monospace;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
.architecture-head div:nth-child(2){border-left:1px solid var(--border);border-right:1px solid var(--border);color:var(--accent)}
.architecture-grid{display:grid;grid-template-columns:1fr 1.3fr 1fr;position:relative}
.architecture-grid ul{list-style:none;margin:0;padding:20px;display:flex;flex-direction:column;gap:8px}

/* INGRESS / EGRESS sütunları — cursor dolaştıkça canlanan satırlar */
.architecture-grid ul li{
  position:relative;display:flex;align-items:center;gap:8px;justify-content:space-between;
  border:1px solid var(--border);background:var(--surface-3);padding:10px 12px;border-radius:8px;
  font-size:13px;overflow:hidden;
  transition:border-color .25s ease,background .25s ease,transform .2s cubic-bezier(.2,.8,.2,1),box-shadow .25s ease,padding .25s ease;
}
.architecture-grid ul li::before{
  content:"";position:absolute;inset:0;border-radius:inherit;
  background:radial-gradient(180px circle at var(--mx,50%) var(--my,50%),rgba(96,165,250,.18),transparent 60%);
  opacity:0;transition:opacity .3s ease;pointer-events:none;
}
.architecture-grid ul li:hover{
  border-color:var(--accent);
  background:linear-gradient(90deg,rgba(96,165,250,.10),rgba(96,165,250,.04));
  transform:translateX(6px);
  box-shadow:0 6px 22px -10px rgba(96,165,250,.45),inset 0 0 0 1px rgba(96,165,250,.25);
  padding-left:16px;cursor:default;
}
.architecture-grid ul li:hover::before{opacity:1}
.architecture-grid ul li:hover .signal-dot{transform:scale(1.6);box-shadow:0 0 12px var(--accent)}
.architecture-grid ul:first-of-type li:hover{ /* ingress sol → sağ */ transform:translateX(6px) }
.architecture-grid ul:last-of-type li:hover{  /* egress sağ → sol  */ transform:translateX(-6px) }

/* NXLog core kartları — daha güçlü hover, hafif yukarı kalkma */
.architecture-core{display:flex;flex-direction:column;gap:10px;padding:16px}
.architecture-core article{
  position:relative;display:flex;gap:12px;border:1px solid var(--border-strong);background:var(--surface-3);
  padding:14px;border-radius:10px;overflow:hidden;
  transition:border-color .25s ease,background .25s ease,box-shadow .3s ease,transform .25s cubic-bezier(.2,.8,.2,1);
}
.architecture-core article::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent);
  transform:scaleY(0);transform-origin:top;transition:transform .3s cubic-bezier(.2,.8,.2,1);
}
.architecture-core article:hover{
  border-color:var(--accent);
  background:linear-gradient(135deg,rgba(96,165,250,.14),rgba(96,165,250,.04));
  box-shadow:0 18px 40px -22px rgba(96,165,250,.55),0 0 0 1px rgba(96,165,250,.25);
  transform:translateY(-3px) scale(1.015);cursor:default;
}
.architecture-core article:hover::after{transform:scaleY(1)}
.architecture-core article:hover .step{color:#fff;text-shadow:0 0 14px var(--accent)}
.architecture-core .step{font-family:"JetBrains Mono",monospace;color:var(--accent);transition:color .2s,text-shadow .2s}
.architecture-core h4{margin:0 0 6px}

/* Tüm box: cursor yaklaştığında arkadaki şebeke ışıldasın */
.architecture-box{position:relative;transition:box-shadow .4s ease,border-color .4s ease}
.architecture-box:hover{border-color:var(--border-strong);box-shadow:0 30px 80px -40px rgba(96,165,250,.35)}

.architecture-foot{display:flex;justify-content:space-between;padding:12px 20px;border-top:1px solid var(--border);font-size:10px;color:var(--dim);text-transform:uppercase;letter-spacing:.16em}

.integration-walls{margin-top:48px;display:grid;gap:14px}
.integration-wall{border:1px solid var(--border);background:var(--surface-raised);border-radius:12px;overflow:hidden}
.integration-wall h3{margin:0;padding:14px 18px;border-bottom:1px solid var(--border);font-size:14px}
.integration-wall .tiles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--border)}
.integration-wall .tiles span{background:var(--surface);padding:12px 8px;text-align:center;color:var(--muted);font-size:12.5px}

.stats-strip{margin-top:48px;border:1px solid var(--border);border-radius:12px;overflow:hidden;background:var(--surface-raised);display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.stats-strip>div{padding:28px;border-right:1px solid var(--border);display:flex;flex-direction:column;gap:8px}
.stats-strip>div:last-child{border-right:0}.stats-strip strong{font-family:"JetBrains Mono",monospace;font-size:40px}
.quote-card{margin:24px 0 0;border:1px solid var(--border);border-radius:12px;background:var(--surface-2);padding:42px;font-size:26px;line-height:1.45}
.quote-card footer{margin-top:20px;padding-top:16px;border-top:1px solid var(--border);font-size:13px;color:var(--muted);display:flex;justify-content:space-between}

.faq-list{margin-top:48px;border:1px solid var(--border);border-radius:12px;overflow:hidden;background:var(--surface-raised)}
.faq-item+.faq-item{border-top:1px solid var(--border)}
.faq-toggle{width:100%;background:none;border:0;color:inherit;padding:20px;display:flex;align-items:center;gap:14px;text-align:left;font-size:16px;font-weight:500;cursor:pointer}
.faq-plus{margin-left:auto;font-size:20px;color:var(--muted)}.faq-content{padding:0 20px 20px 54px;color:var(--muted);line-height:1.7}

.contact-shell{position:relative;border:1px solid var(--border-strong);border-radius:14px;background:var(--surface-2);padding:30px;display:grid;grid-template-columns:380px 1fr;gap:36px}
.contact-info h2{margin:0;font-size:44px;line-height:1.12;letter-spacing:-.01em}.contact-info p{color:var(--muted);line-height:1.65}
.contact-info ul{list-style:none;padding:0;margin:24px 0 0;display:flex;flex-direction:column;gap:14px}.contact-info li strong{display:block;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--dim);font-family:"JetBrains Mono",monospace}
.contact-info li a{display:inline-block;margin-top:4px;font-weight:600}
.contact-form{border:1px solid var(--border);border-radius:12px;background:var(--surface-raised);padding:24px;display:flex;flex-direction:column;gap:16px}
.contact-form h3{margin:0;font-size:24px}.contact-form p{margin:0;color:var(--muted)}
.intent-group{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;border:1px solid var(--border);background:var(--surface);padding:10px;border-radius:8px}
.intent-group legend{padding:0 6px;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);font-family:"JetBrains Mono",monospace}
.intent-group label{border:1px solid var(--border);padding:8px;border-radius:8px;cursor:pointer;font-size:12.5px;color:var(--muted)}
.intent-group input{display:none}.intent-group input:checked+span{color:var(--text)}.intent-group label:has(input:checked){border-color:var(--accent);background:rgba(96,165,250,.12)}
.contact-form label{display:flex;flex-direction:column;gap:8px;font-size:12px;color:var(--muted)}
.contact-form input,.contact-form textarea{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:12px;color:var(--text);font-size:14px}
.contact-form input:focus,.contact-form textarea:focus{outline:2px solid var(--accent);outline-offset:1px}
.form-footer{padding-top:12px;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;gap:16px}
.form-footer p{font-size:12px;color:var(--dim);max-width:360px}.form-alert{border:1px solid var(--danger);background:rgba(239,68,68,.06);padding:12px;border-radius:8px;font-size:13px}
.form-success{border:1px solid var(--ok);background:rgba(16,185,129,.08);padding:14px;border-radius:8px;font-size:14px;line-height:1.6}
.honeypot{display:none}

/* ============================================================
   Mail fallback modal
   Mail uygulaması açılmadığında gösterilen alternatif yollar.
   ============================================================ */
.mail-fallback-overlay{
  position:fixed;inset:0;z-index:9999;
  background:rgba(6,9,15,.78);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  display:flex;align-items:center;justify-content:center;padding:24px;
  animation:mfb-fadein .2s ease;
}
@keyframes mfb-fadein{from{opacity:0}to{opacity:1}}
@keyframes mfb-slidein{from{opacity:0;transform:translateY(12px) scale(.98)}to{opacity:1;transform:none}}
.mail-fallback{
  position:relative;width:min(720px,100%);max-height:90vh;overflow-y:auto;
  background:var(--surface-raised,#10141c);border:1px solid var(--border,#1c222c);border-radius:14px;
  padding:32px;color:var(--text,#e6e8ec);
  box-shadow:0 30px 80px -20px rgba(0,0,0,.6),0 0 0 1px rgba(96,165,250,.08);
  animation:mfb-slidein .25s cubic-bezier(.2,.8,.2,1);
}
.mail-fb-close{
  position:absolute;top:16px;right:16px;width:32px;height:32px;border:1px solid var(--border,#1c222c);
  background:var(--surface,#0a0d12);color:var(--muted,#a7adbb);border-radius:8px;
  font-size:14px;cursor:pointer;transition:all .15s;
  display:flex;align-items:center;justify-content:center;
}
.mail-fb-close:hover{color:var(--text,#fff);border-color:var(--accent,#60a5fa);background:rgba(96,165,250,.1)}
.mail-fallback h3{margin:0 0 12px;font-size:22px;letter-spacing:-.01em;padding-right:40px}
.mail-fallback>p{margin:0 0 22px;color:var(--muted,#a7adbb);font-size:14px;line-height:1.65}
.mail-fallback code{
  font-family:"JetBrains Mono",monospace;font-size:12px;padding:2px 6px;border-radius:4px;
  background:rgba(96,165,250,.10);color:var(--accent,#60a5fa);border:1px solid rgba(96,165,250,.22);
}
.mail-fb-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-bottom:22px;
}
.mail-fb-card{
  display:flex;flex-direction:column;gap:4px;
  padding:14px 16px;border:1px solid var(--border,#1c222c);background:var(--surface,#0a0d12);
  border-radius:10px;color:var(--text,#e6e8ec);text-decoration:none;text-align:left;
  cursor:pointer;font:inherit;
  transition:border-color .2s,background .2s,transform .15s,box-shadow .2s;
}
.mail-fb-card:hover{
  border-color:var(--accent,#60a5fa);background:rgba(96,165,250,.08);
  transform:translateY(-1px);box-shadow:0 8px 20px -10px rgba(96,165,250,.35);
}
.mail-fb-card strong{font-size:14px;font-weight:600;color:var(--text,#e6e8ec);letter-spacing:-.005em}
.mail-fb-card span{font-size:12px;color:var(--dim,#707889);line-height:1.45}
.mail-fb-preview{margin:0 0 18px;border:1px solid var(--border,#1c222c);border-radius:10px;background:var(--surface,#0a0d12)}
.mail-fb-preview summary{padding:12px 16px;cursor:pointer;font-size:13px;color:var(--muted,#a7adbb);user-select:none}
.mail-fb-preview summary:hover{color:var(--text,#fff)}
.mail-fb-preview[open] summary{border-bottom:1px solid var(--border,#1c222c)}
.mail-fb-preview textarea{
  display:block;width:100%;border:0;background:transparent;color:var(--text,#e6e8ec);
  padding:14px 16px;font-family:"JetBrains Mono",monospace;font-size:12px;line-height:1.55;
  resize:vertical;outline:none;min-height:200px;
}
.mail-fb-note{
  margin:0;padding-top:18px;border-top:1px solid var(--border,#1c222c);
  font-size:12.5px;color:var(--dim,#707889);text-align:center;
}
.mail-fb-note a{color:var(--accent,#60a5fa);text-decoration:none;font-weight:500}
.mail-fb-note a:hover{text-decoration:underline}
@media(max-width:560px){
  .mail-fallback{padding:24px 20px}
  .mail-fb-grid{grid-template-columns:1fr}
  .mail-fallback h3{font-size:18px}
}

.site-footer{border-top:1px solid var(--border);background:var(--surface)}
.footer-grid{padding:70px 0;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:28px}
.footer-grid h4{margin:0 0 12px;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--dim);font-family:"JetBrains Mono",monospace}
.footer-grid ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}
.footer-grid p{margin:0;color:var(--muted);line-height:1.7}.footer-grid .muted{color:var(--dim);margin-top:14px}
.footer-base{padding:20px 0;border-top:1px solid var(--border);display:flex;justify-content:space-between;gap:20px;font-size:12px;color:var(--dim)}

[data-section]{opacity:0;transform:translateY(18px);transition:opacity .5s ease,transform .5s ease}
[data-section].is-visible{opacity:1;transform:none}
.section-inline-cta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:24px}
.section-inline-cta p{margin:0;color:var(--dim);font-size:13px}

@media(max-width:1100px){
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-inner{grid-template-columns:1fr}
  .contact-shell{grid-template-columns:1fr}
  .stats-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:900px){
  .nav-links,.nav-ctas,.top-strip{display:none}
  .mobile-menu-btn{display:block;background:none;border:1px solid var(--border);color:var(--muted);border-radius:8px;width:40px;height:40px}
  .grid-3,.grid-2,.integration-wall .tiles,.architecture-grid,.architecture-head{grid-template-columns:1fr}
  .architecture-head div:nth-child(2){border:0}
}
@media(max-width:640px){
  .container{width:min(1200px,100% - 24px)}
  .section .container{padding:72px 0}
  .hero h1{font-size:42px}.contact-info h2{font-size:34px}
}
@media (prefers-reduced-motion: reduce){
  .ticker-scroll,.pulse-dot,.signal-dot,.packet,[data-section]{animation:none;transition:none}
}