:root{
  --bg: #0b0f14;
  --card: #111824;
  --text: #e9eef7;
  --muted: #a8b3c7;
  --line: rgba(255,255,255,0.10);
  --button: rgba(255,255,255,0.12);
  --buttonHover: rgba(255,255,255,0.18);
  --radius: 14px;
}

*{ box-sizing: border-box; }
html,body{ height: 100%; }
body{
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 500px at 10% -10%, rgba(255,255,255,0.10), transparent 60%),
              radial-gradient(900px 400px at 90% 0%, rgba(255,255,255,0.08), transparent 55%),
              var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a{ color: inherit; }
a:hover{ opacity: 0.9; }

.container{
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto;
}

.skip-link{
  position: absolute;
  left: -999px;
  top: 8px;
  background: #fff;
  color: #000;
  padding: 8px 10px;
  border-radius: 10px;
}
.skip-link:focus{ left: 16px; }

.site-header{
  position: sticky;
  top: 0;
  backdrop-filter: blur(10px);
  background: rgba(11, 15, 20, 0.75);
  border-bottom: 1px solid var(--line);
  z-index: 10;
}

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

.brand{
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.2px;
}
.brand-mark{
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: rgba(255,255,255,0.15);
}

.nav{
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.nav a{
  text-decoration: none;
  padding: 8px 10px;
  border-radius: 10px;
}
.nav a:hover{
  background: rgba(255,255,255,0.08);
}

.hero{
  padding: 64px 0 38px;
}
.hero h1{
  font-size: clamp(34px, 6vw, 56px);
  margin: 0 0 10px;
}
.lead{
  font-size: 1.1rem;
  color: var(--muted);
  margin: 0 0 18px;
  max-width: 60ch;
}
.hero-actions{
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.section{
  padding: 46px 0;
}
.section h2{
  margin: 0 0 14px;
  font-size: 1.6rem;
}
.muted{ color: var(--muted); }
.small{ font-size: 0.92rem; }

.card{
  background: rgba(17, 24, 36, 0.75);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}
.card-title{
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.card-actions{
  margin-top: 12px;
}

.button{
  display: inline-block;
  border: 1px solid var(--line);
  background: var(--button);
  padding: 10px 14px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
}
.button:hover{ background: var(--buttonHover); }
.button-ghost{
  background: transparent;
}

.contact-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 14px;
}

label{
  display: grid;
  gap: 6px;
  margin: 12px 0;
  font-weight: 600;
}
input, textarea{
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(0,0,0,0.20);
  color: var(--text);
  outline: none;
}
input:focus, textarea:focus{
  border-color: rgba(255,255,255,0.28);
}

.site-footer{
  border-top: 1px solid var(--line);
  padding: 18px 0;
  margin-top: 24px;
}
.footer-inner{
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.footer-links{
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.footer-links a{
  text-decoration: none;
  color: var(--muted);
}
.footer-links a:hover{ color: var(--text); }

@media (min-width: 860px){
  .contact-grid{
    grid-template-columns: 1fr 1.2fr;
    align-items: start;
  }
}