:root{
  --bg:#02050b;
  --panel:#07111f;
  --line:#123d70;
  --blue:#0b8cff;
  --blue-light:#42baff;
  --blue2:#005dd8;
  --text:#edf5ff;
  --muted:#9dafc8;
  --card:linear-gradient(180deg,rgba(12,24,39,.8),rgba(5,12,20,.9));
  --card-border:rgba(45,88,130,.7);
  --glow:0 0 38px rgba(11,140,255,.25);
  --max:1440px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,"Segoe UI",Arial,sans-serif;
  color:var(--text);
  background:#01040a;
  overflow-x:hidden;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%}

.page-bg{
  position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(circle at 50% 12%,rgba(0,119,255,.18),transparent 28%),
    radial-gradient(circle at 10% 72%,rgba(0,94,255,.12),transparent 28%),
    radial-gradient(circle at 85% 72%,rgba(0,94,255,.13),transparent 30%),
    linear-gradient(180deg,#02050b,#050b13 42%,#02050b);
}

/* ---------- HEADER ---------- */
.site-header{
  position:sticky;top:0;z-index:100;height:86px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 clamp(20px,5vw,54px);
  background:rgba(1,5,10,.72);
  border-bottom:1px solid rgba(29,94,160,.38);
  backdrop-filter:blur(14px);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{background:rgba(1,5,10,.94);box-shadow:0 10px 40px rgba(0,0,0,.45)}
.brand img{width:230px;max-height:62px;object-fit:contain;object-position:left center;display:block}
nav{display:flex;gap:clamp(20px,3vw,42px);align-items:center}
nav a{color:#dbe8f8;font-weight:600;position:relative;padding:32px 0}
nav a:not(.portal-btn).active,
nav a:not(.portal-btn):hover{color:var(--blue)}
nav a:not(.portal-btn).active::after,
nav a:not(.portal-btn):hover::after{
  content:"";position:absolute;left:0;right:0;bottom:18px;height:2px;
  background:var(--blue);box-shadow:0 0 18px var(--blue)
}
.portal-btn{
  color:#39aaff;border:1px solid var(--blue);border-radius:6px;
  padding:12px 18px;box-shadow:var(--glow);transition:.25s ease
}
.portal-btn:hover{background:rgba(11,140,255,.12);color:#fff}
.portal-btn span{margin-left:2px}
.mobile-menu{
  display:none;border:1px solid var(--line);color:var(--text);
  background:transparent;border-radius:8px;padding:10px 12px;font-size:20px;cursor:pointer
}

/* ---------- HERO ---------- */
.hero{
  position:relative;min-height:90vh;display:flex;align-items:center;justify-content:center;
  text-align:center;overflow:hidden;border-bottom:1px solid rgba(29,94,160,.3)
}
.hero-media{
  position:absolute;inset:0;
  background:url("assets/leitbyte-banner.png") center 42%/cover no-repeat;
  transform:scale(1.06);
  filter:brightness(.42) saturate(1.15);
  animation:heroZoom 20s ease-in-out infinite alternate;
}
@keyframes heroZoom{from{transform:scale(1.06)}to{transform:scale(1.15)}}
.hero-scrim{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(2,5,11,.72) 0%,rgba(2,5,11,.5) 40%,rgba(2,5,11,.72) 70%,#02050b 100%),
    radial-gradient(ellipse at 50% 42%,rgba(11,60,140,.35),transparent 60%);
}
.hero-inner{position:relative;z-index:2;max-width:920px;padding:120px 20px 90px}
.hero-eyebrow{
  color:var(--blue-light);text-transform:uppercase;letter-spacing:3px;
  font-weight:700;font-size:13px;margin:0 0 18px
}
.hero h1{
  margin:0;font-size:clamp(40px,6.5vw,84px);line-height:1.02;font-weight:800;
  color:#fff;letter-spacing:1px;text-shadow:0 4px 40px rgba(0,0,0,.6)
}
.hero h1 span{color:var(--blue-light);text-shadow:0 0 32px rgba(11,140,255,.65)}
.claim{margin:22px auto 32px;max-width:640px;font-size:clamp(17px,2vw,21px);color:#e3ecfa}
.hero-cta{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:34px}
.hero-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:12px}
.hero-tags span{
  background:rgba(4,12,22,.65);border:1px solid rgba(29,94,160,.5);border-radius:8px;
  padding:9px 14px;color:#edf5ff;font-size:14px;backdrop-filter:blur(4px)
}
.scroll-cue{
  position:absolute;bottom:22px;left:50%;transform:translateX(-50%);z-index:2;
  color:var(--blue-light);font-size:34px;line-height:1;animation:bounce 2s infinite;opacity:.85
}
@keyframes bounce{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,10px)}}

/* ---------- BUTTONS ---------- */
.primary-btn{
  display:inline-flex;align-items:center;gap:12px;color:#fff;font-weight:700;
  border:1px solid var(--blue);border-radius:8px;padding:15px 26px;
  background:linear-gradient(135deg,var(--blue),var(--blue2));
  box-shadow:var(--glow);transition:.25s ease
}
.primary-btn:hover{transform:translateY(-2px);box-shadow:0 10px 34px rgba(11,140,255,.4)}
.primary-btn span{transition:transform .25s ease}
.primary-btn:hover span{transform:translateX(4px)}
.ghost-btn{
  display:inline-flex;align-items:center;color:#dbeafe;font-weight:600;
  border:1px solid rgba(120,170,230,.5);border-radius:8px;padding:15px 26px;
  background:rgba(4,12,22,.4);transition:.25s ease
}
.ghost-btn:hover{border-color:var(--blue);color:#fff;background:rgba(11,140,255,.12)}

/* ---------- SECTIONS ---------- */
.section{max-width:var(--max);margin:0 auto;padding:clamp(58px,8vw,90px) clamp(22px,5vw,54px);text-align:center}
.section-kicker{color:var(--blue);text-transform:uppercase;letter-spacing:1.7px;font-weight:700;font-size:13px;margin:0 0 10px}
.section h2{margin:0 auto 14px;font-size:clamp(28px,3.4vw,44px);max-width:950px;font-weight:800;line-height:1.15}
.section-text{color:var(--muted);max-width:760px;margin:0 auto 44px;line-height:1.7}

.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.service-card{
  min-height:245px;padding:32px 26px;border:1px solid var(--card-border);border-radius:12px;
  background:var(--card);box-shadow:inset 0 0 50px rgba(11,140,255,.025);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;text-align:left
}
.service-card:hover{transform:translateY(-6px);border-color:var(--blue);box-shadow:0 14px 40px rgba(11,140,255,.2)}
.icon{color:var(--blue);font-size:44px;line-height:1;margin-bottom:20px;text-shadow:0 0 18px rgba(11,140,255,.65)}
.service-card h3{margin:0 0 12px;font-size:21px}
.service-card p{color:#c3cfdd;line-height:1.55;font-size:15px}
.service-card a{display:inline-block;margin-top:16px;color:var(--blue-light);font-weight:600}

/* ---------- STATS ---------- */
.stats{max-width:1000px;margin:0 auto;padding:10px clamp(22px,5vw,54px) 70px;display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.stat{display:flex;align-items:center;gap:18px;justify-content:center;border-left:1px solid var(--card-border);padding:10px 0}
.stat:first-child{border-left:0}
.stat-icon{font-size:38px;color:var(--blue);filter:drop-shadow(0 0 16px rgba(11,140,255,.5))}
.stat strong{display:block;font-size:clamp(32px,4vw,42px);line-height:1;font-weight:800}
.stat span{color:#c9d4e2;font-size:15px}

/* ---------- SPLIT / ABOUT ---------- */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;text-align:left;align-items:center}
.split h2{text-align:left;margin-left:0}
.split p{color:#c3cfdd;line-height:1.75;margin-bottom:16px}
.split .primary-btn{margin-top:10px}
.info-panel,.contact-card,.contact-form{
  border:1px solid var(--card-border);border-radius:14px;background:var(--card);
  box-shadow:inset 0 0 50px rgba(11,140,255,.025);padding:30px
}
.info-panel h3{margin:0 0 16px;font-size:20px}
.info-panel ul{margin:0;padding-left:22px;color:#d3deeb;line-height:2.1}
.info-panel li::marker{color:var(--blue)}

/* ---------- CONTACT ---------- */
.contact-section{text-align:center}
.contact-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:28px;text-align:left;max-width:1120px;margin:0 auto}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.contact-form label{display:block;color:#b8cbea;margin:14px 0 8px;font-size:14px;font-weight:500}
.contact-form input,.contact-form textarea{
  width:100%;border:1px solid rgba(45,88,130,.9);background:#050d18;color:var(--text);
  border-radius:8px;padding:13px 14px;outline:none;font:inherit;transition:border-color .2s ease,box-shadow .2s ease
}
.contact-form input:focus,.contact-form textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(11,140,255,.15)}
.contact-form input.invalid,.contact-form textarea.invalid{border-color:#ff5a6a;box-shadow:0 0 0 3px rgba(255,90,106,.15)}
.contact-form textarea{min-height:150px;resize:vertical}
.hp-field{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.consent{display:flex !important;gap:10px;align-items:flex-start;margin:18px 0 4px;color:#b8cbea;font-size:13px;line-height:1.5;font-weight:400}
.consent input{width:auto !important;margin-top:2px;accent-color:var(--blue)}
.consent a{color:var(--blue-light);text-decoration:underline}
.contact-form button{
  margin-top:18px;width:100%;border:1px solid var(--blue);
  background:linear-gradient(135deg,var(--blue),var(--blue2));color:#fff;
  padding:15px;border-radius:8px;font-weight:700;font-size:16px;cursor:pointer;transition:.25s ease
}
.contact-form button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 10px 30px rgba(11,140,255,.35)}
.contact-form button:disabled{opacity:.6;cursor:progress}
.form-status{margin:16px 0 0;font-size:14px;min-height:20px}
.form-status.ok{color:#4ade80}
.form-status.err{color:#ff6b7a}

.contact-card p{display:flex;gap:14px;align-items:flex-start;margin:0 0 20px;color:#d3deeb;line-height:1.5}
.contact-card h3{margin:0 0 22px;font-size:22px}
.contact-card .ci{color:var(--blue);font-size:20px;width:24px;text-align:center;flex:none}
.contact-card strong{color:#eaf2ff;font-weight:600}
.contact-card a{color:#cfe0f5}
.contact-card a:hover{color:var(--blue-light)}
.card-note{color:var(--muted);font-size:13px !important;display:block !important;border-top:1px solid rgba(45,88,130,.5);padding-top:16px;margin-top:6px !important}

/* ---------- LEGAL PAGES ---------- */
.legal{text-align:left;max-width:920px;padding-top:clamp(40px,6vw,70px)}
.legal h2{text-align:left;margin-left:0}
.legal-panel{max-width:none;margin-top:26px;padding:clamp(24px,4vw,40px)}
.legal-panel h3{margin:26px 0 8px;font-size:18px;color:#eaf2ff}
.legal-panel h3:first-of-type{margin-top:0}
.legal-panel p{color:#c7d3e2;line-height:1.7;margin:0 0 14px}
.legal-panel em{color:var(--blue-light);font-style:normal}
.legal-panel .hint{color:var(--muted);font-size:14px;border-top:1px solid rgba(45,88,130,.5);padding-top:18px;margin-top:24px}
.legal-panel .primary-btn{margin-top:8px}

/* ---------- FOOTER ---------- */
footer{
  border-top:1px solid rgba(29,94,160,.38);padding:26px clamp(22px,5vw,54px);
  display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;
  color:#9dafc8;background:#02050b
}
.footer-brand{display:flex;align-items:center;gap:16px}
.footer-brand img{width:120px;object-fit:contain}
.footer-links a{margin-left:20px;color:#cbd9ec}
.footer-links a:hover{color:var(--blue-light)}

/* ---------- REVEAL ANIMATIONS ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hero-media,.scroll-cue{animation:none}
}

/* ---------- RESPONSIVE ---------- */
@media(max-width:1100px){
  nav{gap:20px}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3){border-left:0}
}
@media(max-width:820px){
  .site-header{height:76px}
  .brand img{width:190px}
  .mobile-menu{display:block}
  nav{
    display:none;position:absolute;top:76px;left:0;right:0;background:rgba(1,5,10,.98);
    border-bottom:1px solid rgba(29,94,160,.38);padding:14px 24px 22px;flex-direction:column;
    gap:6px;align-items:stretch;backdrop-filter:blur(14px)
  }
  nav.open{display:flex}
  nav a{padding:12px 4px}
  nav a:not(.portal-btn).active::after,nav a:not(.portal-btn):hover::after{bottom:6px}
  .portal-btn{text-align:center;margin-top:8px;padding:14px}
  .hero{min-height:88vh}
  .hero-inner{padding:90px 18px 80px}
  .service-grid,.stats,.split,.contact-grid,.form-row{grid-template-columns:1fr}
  .split{text-align:left}
  .stat{border-left:0;border-top:1px solid var(--card-border);padding-top:18px;justify-content:flex-start}
  .stat:first-child{border-top:0}
  footer{flex-direction:column;text-align:center;justify-content:center}
  .footer-links a{margin:0 10px}
}