:root{
  --bg: #0b1020;
  --surface: #0f1730;
  --card: #121a33;
  --text: #eaf0ff;
  --muted: #b8c2e0;
  --accent: #6ea8ff;
  --accent2: #8b5cf6;
  --border: rgba(255,255,255,0.10);
  --shadow: 0 18px 40px rgba(0,0,0,0.35);
  --radius: 18px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background:
    radial-gradient(1200px 650px at 20% 10%, rgba(110,168,255,0.25), transparent 60%),
    radial-gradient(1000px 650px at 85% 20%, rgba(139,92,246,0.18), transparent 60%),
    var(--bg);
  color:var(--text);
  line-height:1.6;
}

img{ max-width:100%; display:block; }
a{ color:inherit; }

.container{
  width:min(1100px, 92%);
  margin:0 auto;
}

.skip-link{
  position:absolute;
  left:-999px;
  top:auto;
  width:1px;
  height:1px;
  overflow:hidden;
}
.skip-link:focus{
  left:16px;
  top:16px;
  width:auto;
  height:auto;
  padding:10px 12px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:12px;
  z-index:9999;
}

.site-header{
  position:sticky;
  top:0;
  z-index:50;
  backdrop-filter: blur(10px);
  background: rgba(11, 16, 32, 0.72);
  border-bottom:1px solid var(--border);
}

.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 0;
  gap:16px;
}

.logo{
  font-weight:900;
  letter-spacing:0.2px;
  display:flex;
  align-items:center;
  gap:10px;
}
.logo-badge{
  width:34px;
  height:34px;
  border-radius:12px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 12px 25px rgba(110,168,255,0.22);
}

.nav-links{
  list-style:none;
  display:flex;
  gap:18px;
  margin:0;
  padding:0;
  align-items:center;
}

.nav-links a{
  text-decoration:none;
  color:var(--muted);
  padding:10px 10px;
  border-radius:12px;
  transition: transform .15s ease, background .15s ease, color .15s ease;
}
.nav-links a:hover{
  color:var(--text);
  background: rgba(255,255,255,0.06);
  transform: translateY(-1px);
}

.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  border:0;
  cursor:pointer;
  text-decoration:none;
  font-weight:800;
  border-radius:14px;
  padding:12px 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #08102a;
  box-shadow: 0 18px 35px rgba(110,168,255,0.18);
  transition: transform .15s ease, filter .15s ease;
}
.btn:hover{ transform: translateY(-1px); filter: brightness(1.05); }
.btn:active{ transform: translateY(0px); }

.btn-ghost{
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: none;
}
.btn-ghost:hover{
  background: rgba(255,255,255,0.06);
}

.hero{
  padding: 90px 0 55px;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  align-items: center;
}
.kicker{
  color: var(--muted);
  font-weight: 700;
  letter-spacing: .2px;
}
h1{
  font-size: clamp(32px, 4.8vw, 56px);
  line-height: 1.05;
  margin: 10px 0 12px;
}
.lead{
  color: var(--muted);
  font-size: 18px;
  max-width: 58ch;
  margin: 0 0 18px;
}
.hero-actions{
  display:flex;
  gap: 12px;
  flex-wrap: wrap;
}
.hero-card{
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.03));
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.hero-card h3{ margin: 0 0 8px; }
.hero-card p{ margin: 0; color: var(--muted); }

.section{
  padding: 60px 0;
}
.section-title{
  font-size: 28px;
  margin: 0 0 10px;
}
.section-sub{
  margin: 0 0 22px;
  color: var(--muted);
  max-width: 70ch;
}

.cards{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
}
.card{
  background: rgba(18,26,51,0.85);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: 0 14px 30px rgba(0,0,0,0.22);
  transition: transform .15s ease, background .15s ease;
}
.card:hover{
  transform: translateY(-2px);
  background: rgba(18,26,51,1);
}
.card h3{ margin: 0 0 6px; }
.card p{ margin: 0; color: var(--muted); }

.split{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  align-items: start;
}
.panel{
  background: rgba(18,26,51,0.65);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}

.form{
  display:grid;
  gap: 12px;
}
label{
  display:grid;
  gap: 6px;
  color: var(--muted);
  font-weight: 650;
  font-size: 14px;
}
input, textarea{
  font: inherit;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  outline: none;
}
input:focus, textarea:focus{
  border-color: rgba(110,168,255,0.55);
}
textarea{ min-height: 140px; resize: vertical; }

.notice{
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
}

.footer{
  padding: 30px 0 45px;
  color: var(--muted);
  border-top: 1px solid var(--border);
  margin-top: 30px;
}
.footer-inner{
  display:flex;
  justify-content:space-between;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}
.footer a{
  color: var(--muted);
  text-decoration:none;
}
.footer a:hover{ color: var(--text); }

/* ---------------------------
   Mobile Menü / Hamburger
---------------------------- */
.menu-toggle{
  display:none;
  border:1px solid var(--border);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  border-radius: 14px;
  padding: 10px 12px;
  cursor: pointer;
}
.menu-toggle:focus{ outline: 2px solid rgba(110,168,255,0.35); outline-offset: 2px; }

@media (max-width: 820px){
  .hero-grid{ grid-template-columns: 1fr; }
  .split{ grid-template-columns: 1fr; }
}

@media (max-width: 740px){
  .menu-toggle{ display:inline-flex; align-items:center; gap:10px; }
  .nav-links{
    display:none;
    position:absolute;
    left: 4%;
    right: 4%;
    top: 66px;
    background: rgba(15,23,48,0.98);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 10px;
    flex-direction: column;
    align-items: stretch;
    box-shadow: var(--shadow);
  }
  .nav-links.open{ display:flex; }
  .nav-links a
}