:root{
  --navy:#0D1B3D;
  --navy-2:#0A1530;
  --navy-light:#1a2d54;
  --blue:#156DB5;
  --blue-l:#4A93D1;
  --teal:#00A99D;
  --teal-l:#7ED3B2;
  --accent:#00A99D;
  --accent-light:#7ED3B2;
  --mist:#F2F7FA;
  --white:#FFFFFF;
  --ink-soft:rgba(13,27,61,0.62);
  --ink-faint:rgba(13,27,61,0.38);
  --line:rgba(13,27,61,0.10);
  --ease:cubic-bezier(.22,.7,.24,1);
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:'Inter',sans-serif;
  background:var(--mist);
  color:var(--navy);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
ul{list-style:none;}
section{position:relative;}
.wrap{max-width:1280px;margin:0 auto;padding:0 40px;}
@media(max-width:720px){.wrap{padding:0 22px;}}
@media(max-width:400px){.wrap{padding:0 16px;}}

::selection{background:var(--accent);color:var(--white);}

/* ---------- NAV ---------- */
header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:16px 0;
  background:rgba(255,255,255,0.95);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
nav.wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;}

.brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:15px;}
.brand-logo{
  width:42px;height:42px;
  display:flex;align-items:center;justify-content:center;
}
.brand-logo img{width:100%;height:100%;object-fit:contain;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{color:var(--navy);font-size:16px;letter-spacing:-0.01em;}
.brand-text small{font-size:10px;color:var(--ink-faint);font-weight:500;letter-spacing:0.06em;text-transform:uppercase;}

.nav-links{display:flex;align-items:center;gap:32px;}
.nav-links a{font-size:14px;font-weight:600;color:var(--ink-soft);transition:color .2s;}
.nav-links a:hover{color:var(--navy);}
.nav-links a.nav-cta{
  background:linear-gradient(135deg, var(--navy) 0%, var(--accent) 100%);
  color:#fff;font-size:13px;font-weight:700;
  padding:11px 22px;border-radius:8px;
  transition:transform .25s,box-shadow .25s;
}
.nav-links a.nav-cta:hover{transform:translateY(-2px);box-shadow:0 8px 20px -6px rgba(13,27,61,0.4);color:#fff;}

.nav-toggle{display:none;}
@media(max-width:900px){
  .nav-links{
    display:none;
    position:absolute;
    top:100%;
    left:0;
    right:0;
    background:var(--white);
    flex-direction:column;
    padding:20px 40px;
    gap:0;
    border-bottom:1px solid var(--line);
    box-shadow:0 8px 24px rgba(0,0,0,0.08);
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:14px 0;border-bottom:1px solid var(--line);}
  .nav-links a:last-child{border-bottom:none;}
  .nav-links a.nav-cta{margin:16px 0 0;text-align:center;}
  .nav-toggle{display:flex;flex-direction:column;justify-content:center;gap:5px;background:none;border:none;cursor:pointer;padding:8px;width:40px;height:40px;}
  .nav-toggle span{display:block;width:22px;height:2px;background:var(--navy);border-radius:2px;transition:all 0.3s cubic-bezier(.22,.7,.24,1);}
  .nav-toggle.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px);}
  .nav-toggle.active span:nth-child(2){opacity:0;}
  .nav-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px);}
}

/* ---------- BREADCRUMB ---------- */
.breadcrumb{padding:100px 0 20px;background:var(--white);}
.breadcrumb-nav{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-faint);}
.breadcrumb-nav a{color:var(--ink-soft);transition:color .2s;}
.breadcrumb-nav a:hover{color:var(--accent);}
.breadcrumb-nav svg{width:12px;height:12px;}
.breadcrumb-nav span{color:var(--navy);font-weight:600;}

/* ---------- HERO ---------- */
.hero{padding:40px 0 80px;background:linear-gradient(180deg, var(--white) 0%, var(--mist) 100%);}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:40px;}}
@media(max-width:600px){
  .breadcrumb{padding:80px 0 16px;}
  .hero{padding:20px 0 50px;}
  .hero-grid{gap:30px;}
  .hero p{font-size:15px;margin-bottom:20px;}
  .hero-tags{gap:8px;margin-bottom:20px;}
  .hero-tag{padding:6px 10px;font-size:11px;}
  .btn{padding:14px 24px;font-size:13px;border-radius:10px;}
}
@media(max-width:400px){
  .btn{padding:12px 20px;font-size:12px;width:100%;justify-content:center;}
  .btn-outline{margin-left:0;}
  .hero-content > div{display:flex;flex-direction:column;gap:10px;}
  .hero-tags{justify-content:center;}
}

.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:linear-gradient(135deg, rgba(0,169,157,0.1), rgba(126,211,178,0.15));
  color:var(--accent);font-size:12px;font-weight:600;
  padding:8px 16px;border-radius:100px;margin-bottom:20px;
}
.hero h1{
  font-size:clamp(32px,4.5vw,48px);font-weight:800;line-height:1.1;
  letter-spacing:-0.03em;margin-bottom:20px;color:var(--navy);
}
/* Terrech: Teal & Cyan TI-Farben */
.hero h1 span{
  background:linear-gradient(90deg, #00A99D, #00D9C4, #7ED3B2, #4A93D1, #00A99D);
  background-size:200% auto;
  -webkit-background-clip:text;background-clip:text;color:transparent;
  animation:gradientFlow 5s linear infinite;
}
@keyframes gradientFlow{
  from{background-position:0% center;}
  to{background-position:-200% center;}
}
.hero p{font-size:clamp(14px, 2.5vw, 17px);color:var(--ink-soft);line-height:1.7;margin-bottom:clamp(16px, 4vw, 28px);}
.hero-tags{display:flex;gap:clamp(6px, 1.5vw, 10px);flex-wrap:wrap;margin-bottom:clamp(16px, 4vw, 28px);}
.hero-tag{
  display:inline-flex;align-items:center;gap:clamp(4px, 0.8vw, 6px);
  background:var(--mist);padding:clamp(6px, 1vw, 8px) clamp(10px, 2vw, 14px);border-radius:clamp(6px, 1vw, 8px);
  font-size:clamp(10px, 1.5vw, 12px);font-weight:600;color:var(--navy);
}
.hero-tag svg{width:clamp(10px, 1.8vw, 14px);height:clamp(10px, 1.8vw, 14px);stroke:var(--accent);}

.hero-visual{
  position:relative;
  display:flex;align-items:center;justify-content:center;
  padding:clamp(10px, 3vw, 20px);
}
.hero-visual img{
  max-width:100%;
  filter:drop-shadow(0 40px 80px rgba(13,27,61,0.15)) drop-shadow(0 15px 30px rgba(13,27,61,0.1));
  transform:scale(1);
  transition:transform 0.6s var(--ease), filter 0.6s var(--ease);
}
.hero-visual:hover img{
  transform:scale(1.03);
  filter:drop-shadow(0 50px 100px rgba(13,27,61,0.2)) drop-shadow(0 20px 40px rgba(13,27,61,0.12));
}

.btn{
  display:inline-flex;align-items:center;gap:clamp(6px, 1vw, 8px);
  padding:clamp(10px, 2vw, 14px) clamp(18px, 4vw, 28px);border-radius:clamp(6px, 1vw, 8px);
  font-weight:700;font-size:clamp(12px, 1.8vw, 14px);
  transition:all .25s var(--ease);cursor:pointer;border:none;
}
.btn-primary{
  background:linear-gradient(135deg, var(--navy) 0%, var(--accent) 100%);
  color:#fff;box-shadow:0 8px 24px -8px rgba(0,169,157,0.4);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px -8px rgba(0,169,157,0.5);}
.btn-outline{background:transparent;color:var(--navy);border:2px solid var(--line);margin-left:12px;}
@media(max-width:600px){.btn-outline{margin-left:0;}}
.btn-outline:hover{border-color:var(--navy);background:rgba(13,27,61,0.03);}
.btn svg{width:16px;height:16px;}

/* ---------- ARCHITECTURE ---------- */
.architecture{padding:100px 0;background:var(--navy);color:white;overflow:hidden;}
.arch-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:60px;align-items:center;}
@media(max-width:900px){.arch-grid{grid-template-columns:1fr;}}

.arch-content .eyebrow{
  display:inline-block;font-size:12px;font-weight:600;
  color:var(--teal-l);letter-spacing:0.12em;text-transform:uppercase;margin-bottom:16px;
}
.arch-content h2{
  font-size:clamp(28px,4vw,38px);font-weight:800;
  letter-spacing:-0.02em;margin-bottom:20px;
}
.arch-content p{font-size:16px;color:rgba(255,255,255,0.7);line-height:1.7;margin-bottom:24px;}
.arch-content .highlight{
  background:rgba(0,169,157,0.15);border-left:3px solid var(--teal);
  padding:16px 20px;border-radius:0 8px 8px 0;margin-bottom:24px;
}
.arch-content .highlight p{margin:0;color:rgba(255,255,255,0.9);font-size:15px;}

.arch-diagram{
  background:rgba(255,255,255,0.03);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:20px;padding:40px;
}
.arch-flow{display:flex;flex-direction:column;gap:20px;}
.arch-node{
  background:rgba(255,255,255,0.06);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:12px;padding:20px;
  display:flex;align-items:center;gap:16px;
}
.arch-node.active{
  background:linear-gradient(135deg, rgba(0,169,157,0.2), rgba(0,169,157,0.1));
  border-color:var(--teal);
}
.arch-node .icon{
  width:48px;height:48px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.arch-node.box .icon{background:linear-gradient(135deg,var(--teal),var(--teal-l));}
.arch-node.cloud .icon{background:linear-gradient(135deg,var(--blue),var(--blue-l));}
.arch-node.ti .icon{background:linear-gradient(135deg,var(--navy-light),#2a3f5f);}
.arch-node .icon svg{width:24px;height:24px;stroke:white;}
.arch-node h4{font-size:15px;font-weight:700;margin-bottom:4px;}
.arch-node p{font-size:12px;color:rgba(255,255,255,0.5);margin:0;}

.arch-connector{
  display:flex;align-items:center;justify-content:center;padding:8px 0;
}
.arch-connector .line{
  width:2px;height:30px;
  background:linear-gradient(180deg,var(--teal),var(--blue));
  position:relative;
}
.arch-connector .line.labeled::after{
  content:'WireGuard VPN';
  position:absolute;left:16px;top:50%;transform:translateY(-50%);
  font-size:10px;font-weight:600;color:var(--teal-l);
  white-space:nowrap;letter-spacing:0.05em;
}

/* ---------- PRODUCT ---------- */
.product{padding:100px 0;background:var(--mist);}
.sec-header{text-align:center;margin-bottom:60px;}
.sec-header .eyebrow{
  display:inline-block;font-size:12px;font-weight:600;
  color:var(--accent);letter-spacing:0.12em;text-transform:uppercase;margin-bottom:16px;
}
.sec-header h2{
  font-size:clamp(28px,4vw,42px);font-weight:800;
  letter-spacing:-0.02em;margin-bottom:16px;color:var(--navy);
}
.sec-header p{font-size:17px;color:var(--ink-soft);max-width:620px;margin:0 auto;line-height:1.6;}
@media(max-width:600px){
  .sec-header{margin-bottom:40px;}
  .sec-header p{font-size:15px;}
  .product,.monitoring,.services,.ecosystem{padding:60px 0;}
  .cluster{padding:60px 0;}
  .sippi-integration{padding:60px 0;}
  .lte-callout{padding:20px;gap:12px;}
  .lte-callout-content h5{font-size:15px;}
  .lte-callout-content p{font-size:13px;}
}
@media(max-width:400px){
  .cluster{padding:40px 0;}
  .cluster-stage{padding:15px 0 50px;gap:12px;}
  .lte-callout{padding:16px;}
}

.features-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  margin-bottom:60px;
}
@media(max-width:900px){.features-grid{grid-template-columns:1fr;}}

.feature-card{
  background:var(--white);border-radius:16px;padding:32px;
  border:1px solid var(--line);transition:all .3s var(--ease);
}
.feature-card:hover{
  transform:translateY(-4px);
  box-shadow:0 20px 40px -15px rgba(13,27,61,0.12);
  border-color:transparent;
}
.feature-card .icon{
  width:52px;height:52px;
  background:linear-gradient(135deg, rgba(0,169,157,0.1), rgba(126,211,178,0.15));
  border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:20px;
}
.feature-card .icon svg{width:26px;height:26px;stroke:var(--accent);}
.feature-card h4{
  font-size:17px;font-weight:700;margin-bottom:10px;
  background:linear-gradient(135deg, var(--navy) 0%, var(--accent) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.feature-card p{font-size:14px;color:var(--ink-soft);line-height:1.6;}

/* ---------- PRODUCT SHOWCASE ---------- */
.product-showcase{padding:80px 0;background:var(--white);overflow:hidden;}
.showcase-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;}
@media(max-width:900px){.showcase-grid{grid-template-columns:1fr;text-align:center;}}

.showcase-content .eyebrow{
  display:inline-block;font-size:12px;font-weight:600;
  color:var(--accent);letter-spacing:0.12em;text-transform:uppercase;margin-bottom:16px;
}
.showcase-content h2{
  font-size:clamp(28px,4vw,38px);font-weight:800;
  letter-spacing:-0.02em;margin-bottom:20px;color:var(--navy);
}
.showcase-content p{font-size:16px;color:var(--ink-soft);line-height:1.7;}

.showcase-visual{display:flex;justify-content:center;align-items:center;}
.terrechbox-3d{
  position:relative;perspective:800px;
}
.terrechbox-unit{
  width:280px;height:140px;
  background:linear-gradient(145deg, #2a3f5f 0%, #1a2d4a 50%, #0f1f35 100%);
  border-radius:16px;
  position:relative;
  transform:rotateX(8deg) rotateY(-12deg);
  box-shadow:
    0 40px 80px -20px rgba(0,0,0,0.4),
    0 20px 40px -15px rgba(0,0,0,0.3),
    inset 0 1px 0 rgba(255,255,255,0.1);
  transition:transform 0.5s var(--ease);
}
.terrechbox-3d:hover .terrechbox-unit{
  transform:rotateX(5deg) rotateY(-5deg);
}
.terrechbox-unit::before{
  content:'';position:absolute;top:24px;left:24px;
  width:14px;height:14px;border-radius:50%;
  background:var(--teal);
  box-shadow:0 0 20px var(--teal), 0 0 40px rgba(0,169,157,0.5);
  animation:ledPulse 2s ease-in-out infinite;
}
.terrechbox-unit::after{
  content:'TerrechBox';position:absolute;bottom:18px;right:24px;
  font-size:11px;font-weight:700;color:rgba(255,255,255,0.3);
  letter-spacing:0.1em;text-transform:uppercase;
}
@keyframes ledPulse{0%,100%{opacity:1;box-shadow:0 0 20px var(--teal), 0 0 40px rgba(0,169,157,0.5);}50%{opacity:0.6;box-shadow:0 0 10px var(--teal), 0 0 20px rgba(0,169,157,0.3);}}

.terrechbox-ports{
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  display:flex;flex-direction:column;gap:8px;
}
.terrechbox-port{
  width:20px;height:10px;background:rgba(0,0,0,0.4);border-radius:2px;
  border:1px solid rgba(255,255,255,0.1);
}
.terrechbox-label{
  text-align:center;margin-top:24px;
}
.terrechbox-label h4{font-size:16px;font-weight:700;color:var(--navy);margin-bottom:4px;}
.terrechbox-label p{font-size:13px;color:var(--ink-faint);}

/* ---------- CLUSTER ---------- */
.cluster{padding:120px 0;background:linear-gradient(180deg, #050a12 0%, #0D1B3D 50%, #0a1530 100%);color:white;overflow:hidden;position:relative;}
.cluster::before{
  content:'';position:absolute;top:0;left:0;right:0;bottom:0;
  background:radial-gradient(ellipse 60% 40% at 50% 60%, rgba(0,169,157,0.06) 0%, transparent 70%);
  pointer-events:none;
}
.cluster .sec-header{position:relative;z-index:2;}
.cluster .sec-header .eyebrow{color:var(--teal-l);}
.cluster .sec-header h2{color:white;}
.cluster .sec-header p{color:rgba(255,255,255,0.6);}

.cluster-stage{
  position:relative;margin:clamp(40px, 8vw, 80px) auto;max-width:700px;
  height:clamp(280px, 40vw, 340px);display:flex;align-items:center;justify-content:center;
  cursor:pointer;
}

/* Die Boxen */
.cluster-box{
  position:absolute;
  width:clamp(160px, 30vw, 240px);height:clamp(80px, 14vw, 120px);
  background:linear-gradient(165deg, #1a2d4a 0%, #0f1d30 100%);
  border-radius:clamp(8px, 1.5vw, 12px);
  border:1px solid rgba(255,255,255,0.08);
  box-shadow:0 25px 50px -12px rgba(0,0,0,0.6);
  transition:all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.cluster-box.primary{left:0;top:50%;transform:translateY(-50%);}
.cluster-box.standby{right:0;top:50%;transform:translateY(-50%);}
@media(max-width:700px){
  .cluster-stage{
    height:auto;
    min-height:auto;
    display:flex;
    flex-direction:column;
    gap:20px;
    padding:20px 0 40px;
    align-items:center;
    justify-content:flex-start;
  }
  .cluster-box{
    position:relative !important;
    left:auto !important;right:auto !important;top:auto !important;bottom:auto !important;
    transform:none !important;
  }
  .cluster-box.primary{order:1;}
  .cluster-box.standby{order:3;}
  .failover-status{
    position:relative !important;
    left:auto !important;top:auto !important;
    transform:none !important;
    order:2;
    margin:10px 0;
  }
  .cluster-connection{display:none !important;}
  .cluster-hint{
    position:relative !important;
    left:auto !important;bottom:auto !important;
    transform:none !important;
    order:4;
    margin-top:10px;
  }
  .cluster-progress{
    position:relative !important;
    left:auto !important;bottom:auto !important;
    transform:none !important;
    order:5;
    margin:10px auto 0;
  }
  .cluster-stage.failing .cluster-box.primary,
  .cluster-stage.failed .cluster-box.primary{transform:scale(0.96) !important;}
  .cluster-stage.failed .cluster-box.standby{transform:scale(1.02) !important;}
}

/* LED - Default State */
.cluster-box .led{
  position:absolute;top:clamp(12px, 2.5vw, 20px);left:clamp(12px, 2.5vw, 20px);
  width:clamp(7px, 1.2vw, 10px);height:clamp(7px, 1.2vw, 10px);border-radius:50%;
  transition:all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.cluster-box.primary .led{
  background:#00d9c4;
  box-shadow:0 0 20px #00d9c4, 0 0 40px rgba(0,217,196,0.4);
}
.cluster-box.standby .led{
  background:#3b5998;
  box-shadow:0 0 10px rgba(59,89,152,0.5);
}

/* Box Labels */
.cluster-box .box-label{
  position:absolute;bottom:clamp(10px, 2vw, 16px);left:clamp(12px, 2.5vw, 20px);
  font-size:clamp(8px, 1.2vw, 10px);font-weight:700;letter-spacing:0.1em;text-transform:uppercase;
  color:rgba(255,255,255,0.3);
  transition:all 0.6s ease;
}
.cluster-box .box-name{
  position:absolute;bottom:16px;right:20px;
  font-size:9px;font-weight:600;letter-spacing:0.08em;
  color:rgba(255,255,255,0.15);
}

/* Status Badge */
.cluster-box .status-badge{
  position:absolute;top:clamp(10px, 2vw, 16px);right:clamp(10px, 2vw, 16px);
  padding:clamp(3px, 0.5vw, 4px) clamp(6px, 1.2vw, 10px);border-radius:20px;
  font-size:clamp(7px, 1.1vw, 9px);font-weight:700;letter-spacing:0.05em;text-transform:uppercase;
  transition:all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.cluster-box.primary .status-badge{
  background:rgba(0,217,196,0.2);color:#00d9c4;
}
.cluster-box.standby .status-badge{
  background:rgba(59,89,152,0.2);color:#6b8cce;
}

/* ===== FAILOVER STATES ===== */

/* Phase 1: Primary failing */
.cluster-stage.failing .cluster-box.primary{
  opacity:0.4;transform:translateY(-50%) scale(0.96);
}
.cluster-stage.failing .cluster-box.primary .led{
  background:#ff4757;
  box-shadow:0 0 20px #ff4757, 0 0 40px rgba(255,71,87,0.5);
  animation:ledBlink 0.3s ease-in-out infinite;
}
.cluster-stage.failing .cluster-box.primary .status-badge{
  background:rgba(255,71,87,0.25);color:#ff6b7a;
}
.cluster-stage.failing .cluster-box.standby .led{
  background:#ffa502;
  box-shadow:0 0 20px #ffa502, 0 0 40px rgba(255,165,2,0.4);
}
.cluster-stage.failing .cluster-box.standby .status-badge{
  background:rgba(255,165,2,0.2);color:#ffa502;
}

@keyframes ledBlink{
  0%,100%{opacity:1;}
  50%{opacity:0.3;}
}

/* Phase 2: Failover complete */
.cluster-stage.failed .cluster-box.primary{
  opacity:0.35;transform:translateY(-50%) scale(0.95);
}
.cluster-stage.failed .cluster-box.primary .led{
  background:#ff4757;
  box-shadow:0 0 8px rgba(255,71,87,0.3);
}
.cluster-stage.failed .cluster-box.primary .status-badge{
  background:rgba(255,71,87,0.15);color:#ff6b7a;
}
.cluster-stage.failed .cluster-box.standby{
  transform:translateY(-50%) scale(1.02);
  box-shadow:0 30px 60px -12px rgba(0,0,0,0.7), 0 0 40px rgba(0,217,196,0.15);
}
.cluster-stage.failed .cluster-box.standby .led{
  background:#00d9c4;
  box-shadow:0 0 25px #00d9c4, 0 0 50px rgba(0,217,196,0.5);
}
.cluster-stage.failed .cluster-box.standby .status-badge{
  background:rgba(0,217,196,0.2);color:#00d9c4;
}

/* Mobile failover overrides */
@media(max-width:700px){
  .cluster-stage.failing .cluster-box.primary{transform:scale(0.96);}
  .cluster-stage.failed .cluster-box.primary{transform:scale(0.95);}
  .cluster-stage.failed .cluster-box.standby{transform:scale(1.02);}
}

/* Connection Line */
.cluster-connection{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:180px;height:3px;
  background:rgba(255,255,255,0.08);border-radius:2px;
  overflow:hidden;
}
.cluster-connection::before{
  content:'';position:absolute;top:0;left:0;height:100%;width:50px;
  background:linear-gradient(90deg, transparent, var(--teal), transparent);
  animation:dataFlow 1.5s linear infinite;
}
.cluster-stage.failing .cluster-connection::before{
  background:linear-gradient(90deg, transparent, #ffa502, transparent);
  animation:dataFlow 0.8s linear infinite;
}
.cluster-stage.failed .cluster-connection::before{
  background:linear-gradient(90deg, transparent, var(--teal), transparent);
}
@keyframes dataFlow{0%{left:-50px;}100%{left:100%;}}
@keyframes dataFlowVertical{0%{top:-50px;}100%{top:100%;}}

/* Failover Status Center */
.failover-status{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  text-align:center;z-index:10;
}
.failover-status .status-icon{
  width:64px;height:64px;margin:0 auto 12px;
  border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg, #00d9c4, #00a99d);
  box-shadow:0 0 30px rgba(0,217,196,0.3);
  transition:all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.failover-status .status-icon svg{width:28px;height:28px;stroke:white;stroke-width:2;}
.failover-status .status-text{
  font-size:11px;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;
  color:#00d9c4;
  transition:all 0.4s ease;
}

.cluster-stage.failing .failover-status .status-icon{
  background:linear-gradient(135deg, #ff4757, #ff6b7a);
  box-shadow:0 0 40px rgba(255,71,87,0.4);
  animation:iconPulse 0.5s ease-in-out infinite;
}
.cluster-stage.failing .failover-status .status-text{color:#ff6b7a;}

.cluster-stage.failed .failover-status .status-icon{
  background:linear-gradient(135deg, #00d9c4, #00a99d);
  box-shadow:0 0 40px rgba(0,217,196,0.5);
}
.cluster-stage.failed .failover-status .status-text{color:#00d9c4;}

@keyframes iconPulse{
  0%,100%{transform:scale(1);}
  50%{transform:scale(1.08);}
}

/* Click hint */
.cluster-hint{
  position:absolute;bottom:0;left:50%;transform:translateX(-50%);
  display:flex;align-items:center;gap:8px;
  font-size:12px;color:rgba(255,255,255,0.35);
  transition:all 0.3s ease;
  white-space:nowrap;
}
.cluster-hint svg{width:16px;height:16px;stroke:currentColor;animation:hintPulse 2s ease-in-out infinite;}
.cluster-stage:hover .cluster-hint{color:rgba(255,255,255,0.6);}
.cluster-stage.failing .cluster-hint,.cluster-stage.failed .cluster-hint{opacity:0;}
@media(max-width:700px){
  .cluster-hint{font-size:11px;}
  .failover-status .status-icon{width:52px;height:52px;margin-bottom:8px;}
  .failover-status .status-icon svg{width:22px;height:22px;}
  .failover-status .status-text{font-size:10px;}
}

@keyframes hintPulse{
  0%,100%{opacity:0.5;transform:scale(1);}
  50%{opacity:1;transform:scale(1.1);}
}

/* Progress bar */
.cluster-progress{
  position:absolute;bottom:40px;left:50%;transform:translateX(-50%);
  width:200px;height:3px;
  background:rgba(255,255,255,0.1);border-radius:2px;
  overflow:hidden;
  opacity:0;transition:opacity 0.3s ease;
}
.cluster-stage.failing .cluster-progress,
.cluster-stage.failed .cluster-progress{opacity:1;}
@media(max-width:700px){
  .cluster-progress{width:150px;}
}

.cluster-progress-bar{
  height:100%;width:0;
  background:linear-gradient(90deg, #ff4757, #00d9c4);
  border-radius:2px;
  transition:width 2.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.cluster-stage.failing .cluster-progress-bar{width:50%;}
.cluster-stage.failed .cluster-progress-bar{width:100%;background:linear-gradient(90deg, #00d9c4, #7ED3B2);}

.cluster-features{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  position:relative;z-index:2;margin-top:40px;
}
@media(max-width:900px){.cluster-features{grid-template-columns:repeat(2,1fr);}}
@media(max-width:500px){.cluster-features{grid-template-columns:1fr;}}

.cluster-feature{
  background:rgba(255,255,255,0.02);border:1px solid rgba(255,255,255,0.06);
  border-radius:14px;padding:24px;text-align:center;
  transition:all 0.3s var(--ease);
}
.cluster-feature:hover{
  background:rgba(255,255,255,0.05);border-color:rgba(0,169,157,0.25);
  transform:translateY(-2px);
}
.cluster-feature .icon{
  width:48px;height:48px;margin:0 auto 14px;border-radius:12px;
  background:linear-gradient(135deg, rgba(0,169,157,0.15), rgba(21,109,181,0.15));
  display:flex;align-items:center;justify-content:center;
}
.cluster-feature .icon svg{width:22px;height:22px;stroke:var(--teal-l);}
.cluster-feature h4{font-size:14px;font-weight:700;margin-bottom:6px;}
.cluster-feature p{font-size:12px;color:rgba(255,255,255,0.45);line-height:1.5;}

/* ---------- MONITORING ---------- */
.monitoring{padding:100px 0;background:var(--white);}
.monitoring-grid{display:grid;grid-template-columns:1.1fr 0.9fr;gap:60px;align-items:center;}
@media(max-width:900px){.monitoring-grid{grid-template-columns:1fr;}}

.monitoring-content .eyebrow{
  display:inline-block;font-size:12px;font-weight:600;
  color:var(--accent);letter-spacing:0.12em;text-transform:uppercase;margin-bottom:16px;
}
.monitoring-content h2{
  font-size:clamp(28px,4vw,38px);font-weight:800;
  letter-spacing:-0.02em;margin-bottom:20px;color:var(--navy);
}
.monitoring-content>p{font-size:16px;color:var(--ink-soft);line-height:1.7;margin-bottom:32px;}

.alert-list{display:flex;flex-direction:column;gap:16px;}
.alert-item{
  display:flex;align-items:flex-start;gap:14px;
  background:var(--mist);border-radius:12px;padding:18px 20px;
}
.alert-item .icon{
  width:36px;height:36px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.alert-item.warning .icon{background:rgba(255,180,0,0.15);}
.alert-item.warning .icon svg{stroke:#e6a000;}
.alert-item.error .icon{background:rgba(220,53,69,0.1);}
.alert-item.error .icon svg{stroke:#dc3545;}
.alert-item.success .icon{background:rgba(0,169,157,0.1);}
.alert-item.success .icon svg{stroke:var(--teal);}
.alert-item .icon svg{width:18px;height:18px;}
.alert-item h5{font-size:14px;font-weight:700;margin-bottom:4px;color:var(--navy);}
.alert-item p{font-size:13px;color:var(--ink-soft);margin:0;line-height:1.4;}

.monitoring-visual{
  background:var(--navy);border-radius:20px;padding:32px;
}
.dashboard-header{
  display:flex;justify-content:space-between;align-items:center;
  padding-bottom:20px;border-bottom:1px solid rgba(255,255,255,0.1);
  margin-bottom:20px;
}
.dashboard-header h4{color:white;font-size:14px;font-weight:700;}
.dashboard-header .status{
  display:flex;align-items:center;gap:6px;
  font-size:11px;color:var(--teal-l);font-weight:600;
}
.dashboard-header .status::before{
  content:'';width:8px;height:8px;border-radius:50%;
  background:var(--teal);animation:pulse 2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:0.5;}}

.dashboard-items{display:flex;flex-direction:column;gap:12px;}
.dashboard-item{
  display:flex;justify-content:space-between;align-items:center;
  background:rgba(255,255,255,0.04);border-radius:8px;padding:14px 16px;
}
.dashboard-item .label{font-size:13px;color:rgba(255,255,255,0.6);}
.dashboard-item .value{font-size:13px;font-weight:600;color:white;}
.dashboard-item .value.ok{color:var(--teal-l);}
.dashboard-item .value.warn{color:#ffb400;}
.dashboard-item .value.days{color:rgba(255,255,255,0.8);}

/* ---------- SIPPI INTEGRATION ---------- */
.sippi-integration{padding:100px 0;background:linear-gradient(135deg, var(--mist) 0%, #e8f4f3 100%);}
.sippi-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;}
@media(max-width:900px){.sippi-grid{grid-template-columns:1fr;gap:40px;}}
@media(max-width:600px){.sippi-grid{gap:30px;}}

.sippi-content .eyebrow{
  display:inline-block;font-size:12px;font-weight:600;
  color:var(--accent);letter-spacing:0.12em;text-transform:uppercase;margin-bottom:16px;
}
.sippi-content h2{
  font-size:clamp(28px,4vw,38px);font-weight:800;
  letter-spacing:-0.02em;margin-bottom:20px;color:var(--navy);
}
.sippi-content>p{font-size:16px;color:var(--ink-soft);line-height:1.7;margin-bottom:24px;}

.sippi-benefits{display:flex;flex-direction:column;gap:14px;}
.sippi-benefit{display:flex;align-items:center;gap:12px;}
.sippi-benefit svg{width:20px;height:20px;stroke:var(--teal);flex-shrink:0;}
.sippi-benefit span{font-size:15px;color:var(--navy);font-weight:500;}

.sippi-card{
  background:var(--white);border-radius:20px;padding:40px;
  border:1px solid var(--line);box-shadow:0 20px 50px -20px rgba(13,27,61,0.1);
}
.sippi-card-header{display:flex;align-items:center;gap:16px;margin-bottom:24px;}
.sippi-card-header .logo{
  width:56px;height:56px;
  display:flex;align-items:center;justify-content:center;
}
.sippi-card-header .logo img{width:100%;height:100%;object-fit:contain;}
.sippi-card-header h4{font-size:20px;font-weight:800;color:var(--navy);}
.sippi-card-header p{font-size:13px;color:var(--ink-faint);margin:0;}

.sippi-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.sippi-stat{text-align:center;padding:16px;background:var(--mist);border-radius:12px;}
.sippi-stat .value{font-size:24px;font-weight:800;color:var(--accent);margin-bottom:4px;}
.sippi-stat .label{font-size:11px;color:var(--ink-faint);font-weight:500;}
@media(max-width:600px){
  .sippi-card{padding:24px;max-width:100%;overflow:hidden;}
  .sippi-stats{grid-template-columns:1fr;gap:10px;}
  .sippi-stat{padding:12px;}
  .sippi-stat .value{font-size:20px;}
}
@media(max-width:400px){
  .sippi-card{padding:16px;}
  .sippi-stat{padding:10px;}
  .sippi-stat .value{font-size:18px;}
}

.lte-callout{
  margin-top:60px;grid-column:1/-1;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:20px;padding:32px 40px;
  display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:24px;
  box-shadow:0 10px 40px -15px rgba(13,27,61,0.08);
}
@media(max-width:900px){
  .lte-callout{grid-template-columns:1fr;text-align:center;padding:28px;gap:16px;max-width:100%;box-sizing:border-box;}
  .lte-callout .lte-icon{margin:0 auto;}
  .lte-callout .lte-cta{margin-top:8px;}
}
.lte-callout .lte-icon{
  width:56px;height:56px;flex-shrink:0;
  background:linear-gradient(135deg, var(--blue), var(--teal));
  border-radius:14px;display:flex;align-items:center;justify-content:center;
}
.lte-callout .lte-icon svg{width:30px;height:30px;stroke:white;}
.lte-callout-content h5{font-size:17px;font-weight:700;color:var(--navy);margin-bottom:4px;}
.lte-callout-content p{font-size:14px;color:var(--ink-soft);line-height:1.5;margin:0;}
.lte-callout .lte-cta{
  display:inline-flex;align-items:center;gap:8px;
  background:linear-gradient(135deg, var(--accent), var(--teal-l));
  color:white;font-weight:600;font-size:13px;
  padding:12px 20px;border-radius:8px;white-space:nowrap;
  transition:all 0.25s var(--ease);
}
.lte-callout .lte-cta:hover{transform:translateY(-2px);box-shadow:0 8px 20px -6px rgba(0,169,157,0.4);}
.lte-callout .lte-cta svg{width:16px;height:16px;stroke:currentColor;}

/* ---------- SERVICES ---------- */
.services{padding:100px 0;background:var(--white);}
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
@media(max-width:800px){.services-grid{grid-template-columns:1fr;}}

.service-card{
  background:var(--mist);border-radius:16px;padding:32px;
  transition:all .3s var(--ease);
}
.service-card:hover{
  background:var(--white);
  box-shadow:0 20px 40px -15px rgba(13,27,61,0.12);
  transform:translateY(-4px);
}
.service-card .icon{
  width:48px;height:48px;
  background:linear-gradient(135deg, rgba(0,169,157,0.1), rgba(126,211,178,0.15));
  border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:20px;
}
.service-card .icon svg{width:24px;height:24px;stroke:var(--accent);}
.service-card h4{
  font-size:17px;font-weight:700;margin-bottom:8px;
  background:linear-gradient(135deg, var(--navy) 0%, var(--accent) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.service-card p{font-size:14px;color:var(--ink-soft);line-height:1.6;}

/* ---------- SPECS ---------- */
.specs{padding:80px 0;background:var(--mist);}
.specs-bar{
  display:flex;justify-content:center;gap:48px;flex-wrap:wrap;
}
.spec-item{text-align:center;}
.spec-item .value{font-size:32px;font-weight:800;color:var(--accent);margin-bottom:6px;}
.spec-item .label{font-size:13px;color:var(--ink-faint);font-weight:500;}
@media(max-width:600px){
  .specs{padding:50px 0;}
  .specs-bar{gap:24px 32px;}
  .spec-item .value{font-size:24px;}
  .spec-item .label{font-size:11px;}
}

/* ---------- ECOSYSTEM ---------- */
.ecosystem{padding:100px 0;background:var(--navy);color:white;}
.ecosystem .sec-header .eyebrow{color:var(--accent-light);}
.ecosystem .sec-header h2{color:white;}
.ecosystem .sec-header p{color:rgba(255,255,255,0.6);}

.eco-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
@media(max-width:900px){.eco-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:500px){.eco-grid{grid-template-columns:1fr;}}

.eco-card{
  background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.08);
  border-radius:16px;padding:28px;transition:all .3s var(--ease);
}
.eco-card:hover{background:rgba(255,255,255,0.08);border-color:rgba(255,255,255,0.15);}
.eco-card .icon{
  width:48px;height:48px;
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.eco-card .icon img{width:100%;height:100%;object-fit:contain;}
.eco-card h4{font-size:16px;font-weight:700;margin-bottom:6px;}
.eco-card p{font-size:13px;color:rgba(255,255,255,0.5);line-height:1.5;}

/* ---------- CTA ---------- */
.cta-section{padding:100px 0;background:var(--white);text-align:center;}
.cta-box{
  background:linear-gradient(135deg, var(--accent) 0%, var(--teal-l) 100%);
  border-radius:24px;padding:60px 40px;position:relative;overflow:hidden;
}
.cta-box::before{
  content:'';position:absolute;width:400px;height:400px;
  background:radial-gradient(circle,rgba(255,255,255,0.15),transparent 70%);
  top:-200px;right:-100px;
}
.cta-box h2{font-size:clamp(24px,3.5vw,36px);font-weight:800;color:white;margin-bottom:16px;position:relative;}
.cta-box p{font-size:16px;color:rgba(255,255,255,0.9);max-width:500px;margin:0 auto 32px;position:relative;}
.cta-box .btn{background:white;color:var(--navy);position:relative;}
.cta-box .btn:hover{background:var(--navy);color:white;}

/* ---------- FOOTER ---------- */
footer{background:var(--navy-2);color:rgba(255,255,255,0.5);padding:60px 0 30px;}
.footer-top{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,0.1);margin-bottom:30px;
}
@media(max-width:800px){.footer-top{grid-template-columns:1fr 1fr;gap:30px;}}
@media(max-width:500px){.footer-top{grid-template-columns:1fr;}}

.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand .brand-text strong{color:white;}
.footer-brand p{font-size:14px;line-height:1.6;max-width:280px;}
.footer-col h4{font-size:12px;font-weight:700;color:white;letter-spacing:0.08em;text-transform:uppercase;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,0.5);transition:color .2s;}
.footer-col ul a:hover{color:white;}

.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;font-size:13px;}

.back-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;color:rgba(255,255,255,0.5);margin-top:20px;transition:color .2s;
}
.back-link:hover{color:white;}
.back-link svg{width:14px;height:14px;stroke:currentColor;}