/* ==========================================================
   Nodesferatu – Modern Dark‑Theme Crypto Site
   ========================================================== */

:root {
  /* Colors */
  --bg-dark: #0a0a0f;
  --bg-light: #14141b;
  --text-main: #e6e6e6;
  --accent-cyan: #00f5d4;      /* Neon cyber */
  --accent-pink: #ff2b73;      /* Vampire pink – subtle */
  --border: rgba(255,255,255,.08);
}

/* Reset & Base */
*, *::before, *::after { box-sizing:border-box; }
body {
  margin:0;
  font-family:"Inter", sans-serif;
  color:var(--text-main);
  background-color:var(--bg-dark);
  line-height:1.6;
}
a { text-decoration:none; color:inherit; transition:.3s;}
img{max-width:100%;height:auto;}
h1,h2,h3,h4{margin:0;font-weight:600;}
p{margin:0 0 1rem;}

.container{
  width:90%;
  max-width:1200px;
  margin:auto;
}

.flex{display:flex;align-items:center;justify-content:space-between;}
.column{flex-direction:column;text-align:center;}

.btn{padding:.75rem 1.5rem;border:none;border-radius:4px;font-weight:600;cursor:pointer;}
.btn-primary{background-color:var(--accent-cyan);color:#000;}
.btn-primary:hover{box-shadow:0 0 8px var(--accent-cyan);}
.accent{color:var(--accent-cyan);}

/* Header */
.site-header{
  background:rgba(0,0,0,.5);
  padding:.75rem 0;
  position:sticky;top:0;z-index:100;
}
.logo{font-family:"Orbitron",sans-serif;font-weight:700;color:white;}
.main-nav a{margin-left:1.25rem;color:#aaa;padding:.25rem .5rem;border-radius:4px;}
.main-nav a:hover{background-color:var(--accent-cyan);color:black;}

/* Hero */
.hero{
  background:url('https://images.unsplash.com/photo-1542837207-4f8e9d6b0e8c?auto=format&fit=crop&w=1200&q=80') center/cover no-repeat;
  padding:6rem 0;
}
.hero h2{font-size:3.5rem;margin-bottom:.5rem;}
.hero p{font-size:1.25rem;color:#bbb;max-width:800px;margin:auto;margin-bottom:2rem;}
.hero .btn-primary{background-color:var(--accent-pink);color:white;}
.hero .btn-primary:hover{box-shadow:0 0 12px var(--accent-pink);}

/* Features / Nodes */
.features{padding:4rem 0;background-color:var(--bg-light);}
.features h2{text-align:center;margin-bottom:.5rem;}
.subtitle{font-size:1.15rem;color:#bbb;text-align:center;margin-bottom:3rem;}
.grid{display:grid;gap:2rem;}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));}

/* Card */
.card{
  background-color:var(--bg-dark);
  border-radius:8px;
  padding:2rem;
  text-align:center;
  transition:.4s;
}
.card:hover{transform:scale(1.03);box-shadow:0 0 12px var(--accent-cyan);}
.icon{font-size:3rem;margin-bottom:.75rem;display:block;}
.card h3{margin-bottom:.5rem;color:white;}
.card p{color:#bbb;}

/* Services */
.services{padding:4rem 0;background-color:var(--bg-light);border-top:1px solid var(--border);}
.services h2{text-align:center;margin-bottom:.5rem;}
.service-list{list-style:none;font-size:1.15rem;max-width:800px;margin:auto;}
.service-list li{margin-bottom:1rem;color:#bbb;}
.service-list strong{color:white;}

/* About */
.about{padding:4rem 0;background-color:var(--bg-light);}
.about blockquote{
  margin-top:2rem;
  font-style:italic;
  color:#777;
  border-left:3px solid var(--accent-cyan);
  padding-left:1.5rem;
}

/* CTA / Contact */
.cta{padding:4rem 0;background-color:var(--bg-light);}
#contact-form{
  display:flex;flex-direction:column;width:100%;max-width:600px;margin:auto;
}
#contact-form input,
#contact-form textarea{
  background:#222;color:white;border:none;padding:.75rem;margin-bottom:1rem;border-radius:4px;
}
#contact-form button{background-color:var(--accent-cyan);color:black;}
#contact-form button:hover{box-shadow:0 0 8px var(--accent-cyan);}

/* Footer */
.site-footer{
  background:rgba(0,0,0,.5);
  padding:1.5rem 0;
}
.site-footer small{color:#777;}

/* Media Queries */
@media(max-width:768px){
  .hero h2{font-size:2.5rem;}
  .grid-3{grid-template-columns:1fr;}
  .main-nav a{margin-left:.75rem;font-size:.9rem;}
}