:root{
  --bg:#0b1220;
  --surface:#0f1a2e;
  --card:#111f38;
  --text:#e7eefc;
  --muted:#b6c3da;
  --line:rgba(231,238,252,.12);
  --accent:#6ee7ff;
  --accent2:#7c3aed;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --radius:18px;
  --max:1100px;
}

*{box-sizing:border-box}

html{
  scroll-behavior:smooth;
}

body{
  margin:0;
  font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,"Noto Sans","Helvetica Neue",sans-serif;
  color:var(--text);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(110,231,255,.18), transparent 60%),
    radial-gradient(900px 500px at 90% 10%, rgba(124,58,237,.18), transparent 55%),
    linear-gradient(180deg, var(--bg), #070b14 80%);
  line-height:1.6;
}

img{
  max-width:100%;
  height:auto;
}

a{
  color:var(--accent);
  text-decoration:none;
}

a:hover{
  text-decoration:underline;
}

header{
  max-width:var(--max);
  margin:0 auto;
  padding:56px 20px 22px;
}

header h1{
  margin:0;
  font-size:clamp(34px, 5vw, 56px);
  line-height:1.02;
  letter-spacing:-0.03em;
}

header p{
  margin:12px 0 0;
  color:var(--muted);
  font-size:clamp(16px, 2vw, 20px);
  max-width:42rem;
}

nav{
  position:sticky;
  top:0;
  z-index:20;
  background:rgba(11,18,32,.78);
  backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}

nav{
  display:flex;
  justify-content:center;
  align-items:center;
  gap:6px;
  flex-wrap:wrap;
  padding:10px 12px;
}

nav a{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:10px 14px;
  border-radius:12px;
  color:var(--text);
  font-weight:700;
  opacity:.92;
  transition:background-color .18s ease, opacity .18s ease, transform .18s ease;
}

nav a:hover{
  background:rgba(231,238,252,.08);
  opacity:1;
  text-decoration:none;
  transform:translateY(-1px);
}

nav a.active,
nav a[aria-current="page"]{
  background:rgba(110,231,255,.12);
  color:var(--text);
}

main{
  display:block;
}

section{
  max-width:var(--max);
  margin:20px auto;
  padding:0 20px;
}

section > *:first-child{
  margin-top:0;
}

section h2,
section h3{
  letter-spacing:-0.02em;
  line-height:1.15;
}

section h2{
  margin:0 0 12px;
  font-size:clamp(24px, 3vw, 34px);
}

section h3{
  margin:22px 0 10px;
  font-size:clamp(18px, 2vw, 24px);
}

section p{
  margin:10px 0 0;
  color:var(--muted);
  max-width:75ch;
  font-size:clamp(15px, 1.15rem, 18px);
}

.hero-image{
  max-width:var(--max);
  margin:22px auto 0;
  padding:0 20px;
}

.hero-image img{
  display:block;
  width:100%;
  aspect-ratio:16 / 7;
  object-fit:cover;
  border-radius:22px;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}

.hero-intro{
  padding:28px 24px;
  background:linear-gradient(135deg, rgba(110,231,255,.12), rgba(124,58,237,.10));
  border:1px solid var(--line);
  border-radius:22px;
  box-shadow:var(--shadow);
}

.hero-intro p{
  max-width:70ch;
}

ul{
  list-style:none;
  padding:0;
  margin:18px 0 0;
  display:grid;
  grid-template-columns:repeat(2, minmax(0, 1fr));
  gap:12px;
}

li{
  background:rgba(17,31,56,.88);
  border:1px solid var(--line);
  border-radius:16px;
  padding:16px 16px;
  box-shadow:var(--shadow);
  color:var(--text);
}

li::before{
  content:"✓";
  display:inline-block;
  margin-right:10px;
  color:var(--accent);
  font-weight:800;
}

section a[href^="mailto:"]{
  display:inline-flex;
  align-items:center;
  min-height:48px;
  margin-top:10px;
  padding:12px 16px;
  border-radius:12px;
  background:linear-gradient(135deg, rgba(110,231,255,.18), rgba(124,58,237,.18));
  border:1px solid var(--line);
  color:var(--text);
  font-weight:800;
  text-decoration:none;
}

section a[href^="mailto:"]:hover{
  filter:brightness(1.08);
}

footer{
  max-width:var(--max);
  margin:28px auto 0;
  padding:28px 20px 42px;
  border-top:1px solid var(--line);
  color:var(--muted);
}

@media (max-width: 820px){
  header{
    padding:44px 18px 18px;
  }

  .hero-image,
  section,
  footer{
    padding-left:18px;
    padding-right:18px;
  }

  .hero-image img{
    aspect-ratio:auto;
  }

  ul{
    grid-template-columns:1fr;
  }
}

@media (max-width: 560px){
  nav{
    justify-content:stretch;
    gap:8px;
  }

  nav a{
    flex:1 1 calc(50% - 8px);
    text-align:center;
    padding:12px 10px;
  }

  section{
    margin:16px auto;
  }

  .hero-intro{
    padding:22px 18px;
    border-radius:18px;
  }

  li{
    padding:14px;
  }

  footer{
    padding-bottom:34px;
  }
}