:root{
  --bg: #0b1220;
  --panel: #0f172a;
  --card: #111827;
  --muted: #94a3b8;
  --text: #e5e7eb;
  --primary: #22c55e;
  --danger: #ef4444;
  --border: rgba(255,255,255,0.08);
}

*{margin:0;padding:0;box-sizing:border-box;}
body{
  font-family: "Inter", sans-serif;
  background: radial-gradient(circle at 20% 10%, #1f2937 0%, #0b1220 55%);
  color: var(--text);
  line-height: 1.6;
}

/* NAV */
.navbar{
  position: sticky;
  top:0;
  z-index:100;
  background: rgba(11,18,32,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-container{
  max-width:1100px;
  margin:auto;
  padding: 14px 18px;
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.logo{
  font-weight:800;
  font-size:18px;
  display:flex;
  gap:10px;
}
.logo span{color:var(--primary);}
.nav-links{
  display:flex;
  gap:18px;
}
.nav-links a{
  text-decoration:none;
  color:var(--muted);
  font-weight:600;
  font-size:14px;
}
.nav-links a:hover{color:var(--text);}
.nav-btn{
  display:none;
  border:none;
  background:#1e293b;
  color:white;
  padding:10px 12px;
  border-radius:10px;
  cursor:pointer;
}

/* HERO */
.hero{
  padding: 60px 18px 30px;
}
.hero-container{
  max-width:1100px;
  margin:auto;
  display:grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap:30px;
}
.tag{
  display:inline-block;
  padding:6px 12px;
  border:1px solid var(--border);
  border-radius:999px;
  color:var(--muted);
  font-size:12px;
  margin-bottom:14px;
}
.hero h1{
  font-size:44px;
  line-height:1.1;
  margin-bottom:14px;
}
.hero-sub{
  color:var(--muted);
  font-size:16px;
  max-width:520px;
}
.hero-actions{
  display:flex;
  gap:12px;
  margin-top:22px;
}
.btn{
  padding:10px 16px;
  border-radius:12px;
  font-weight:800;
  text-decoration:none;
  border:1px solid var(--border);
  display:inline-flex;
  justify-content:center;
  align-items:center;
  cursor:pointer;
}
.btn.primary{
  background: var(--primary);
  color:#052e16;
  border:none;
}
.btn.primary:hover{filter:brightness(1.07);}
.btn.secondary{
  background: #1e293b;
  color:var(--text);
}
.hero-stats{
  display:flex;
  gap:14px;
  margin-top:26px;
}
.stat{
  border:1px solid var(--border);
  background: rgba(15,23,42,0.55);
  padding:12px 14px;
  border-radius:14px;
  flex:1;
}
.stat h3{color:var(--primary);}

/* LOCK CARD */
.lock-card{
  background: rgba(17,24,39,0.8);
  border:1px solid var(--border);
  border-radius:18px;
  padding:18px;
  box-shadow: 0 30px 60px rgba(0,0,0,0.35);
}
.mini-title{
  color:var(--muted);
  font-weight:800;
  font-size:12px;
  text-transform:uppercase;
}
.screen{
  margin-top:14px;
  background:#020617;
  border:1px solid rgba(34,197,94,0.25);
  border-radius:14px;
  text-align:center;
  padding:18px;
  font-size:28px;
  font-family: Consolas, monospace;
  color:var(--primary);
}
.mini-status{
  text-align:center;
  margin-top:10px;
  color: #fbbf24;
  font-weight:800;
  font-size:12px;
}
.mini-keypad{
  margin-top:16px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:10px;
}
.k{
  padding:14px;
  border:none;
  border-radius:14px;
  background:#1e293b;
  color:var(--text);
  font-weight:900;
  cursor:pointer;
}
.k:hover{filter:brightness(1.1);}
.k.success{background:var(--primary); color:#052e16;}
.k.danger{background:var(--danger); color:white;}
.mini-note{
  margin-top:12px;
  font-size:12px;
  color:var(--muted);
  text-align:center;
}

/* Sections */
.section{padding:60px 18px;}
.section.alt{background: rgba(15,23,42,0.55);}
.container{max-width:1100px;margin:auto;}
.section-title{font-size:28px;margin-bottom:10px;}
.section-sub{color:var(--muted);margin-bottom:28px;max-width:720px;}

.grid-3{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:16px;
}
.grid-2{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap:16px;
}

.card{
  border:1px solid var(--border);
  border-radius:18px;
  background: rgba(17,24,39,0.6);
  padding:18px;
}
.card h3{margin-bottom:6px;}
.card p{color:var(--muted);}

.timeline{display:grid; gap:14px;}
.step{
  display:flex;
  gap:14px;
  padding:18px;
  border:1px solid var(--border);
  border-radius:18px;
  background: rgba(17,24,39,0.55);
}
.step-num{
  width:42px;
  height:42px;
  border-radius:14px;
  background: rgba(34,197,94,0.15);
  display:flex;
  justify-content:center;
  align-items:center;
  font-weight:900;
  color:var(--primary);
}

.security-box{
  border:1px solid var(--border);
  border-radius:18px;
  background: rgba(17,24,39,0.6);
  padding:18px;
}
.security-box ul{padding-left:18px;color:var(--muted);}

.chips{margin-top:12px; display:flex; flex-wrap:wrap; gap:8px;}
.chip{
  padding:6px 10px;
  border-radius:999px;
  border:1px solid var(--border);
  font-size:12px;
  color:var(--muted);
}

.code-block{
  border:1px solid var(--border);
  border-radius:18px;
  background: #020617;
  padding:18px;
  overflow:auto;
}
.code-block pre{
  color:#a7f3d0;
  font-size:13px;
  margin:0;
}

.demo-grid{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap:16px;
}
.demo-card{
  border:1px solid var(--border);
  border-radius:18px;
  background: rgba(17,24,39,0.6);
  padding:18px;
}
.demo-placeholder{
  margin-top:10px;
  height:200px;
  border:1px dashed rgba(255,255,255,0.15);
  border-radius:16px;
  display:flex;
  justify-content:center;
  align-items:center;
  color:var(--muted);
}

.download-card{
  display:block;
  text-decoration:none;
  color:var(--text);
  border:1px solid var(--border);
  border-radius:18px;
  background: rgba(17,24,39,0.6);
  padding:18px;
}
.download-card p{color:var(--muted);}

.github-box{
  margin-top:20px;
  border:1px solid var(--border);
  border-radius:18px;
  background: rgba(17,24,39,0.6);
  padding:18px;
}

/* ✅ TEAM SECTION UPDATED */
.team-card{
  border:1px solid var(--border);
  border-radius:18px;
  background: rgba(17,24,39,0.6);
  padding:22px;
  text-align:center;
  max-width:420px;
  margin: 0 auto; /* center the card */
}
.team-card h3{
  font-size:18px;
}
.team-card p{
  color:var(--muted);
  margin-top:6px;
}

/* ✅ if Team section only has 1 item */
#team .grid-2{
  grid-template-columns: 1fr;
  justify-items: center;
}

.footer{
  text-align:center;
  padding:30px 18px;
  color:var(--muted);
  border-top:1px solid var(--border);
}

/* reveal animation */
.reveal{
  opacity:0;
  transform: translateY(14px);
  transition: 0.6s ease;
}
.reveal.show{
  opacity:1;
  transform: translateY(0);
}

/* mobile */
@media(max-width: 900px){
  .hero-container{grid-template-columns:1fr;}
  .grid-3{grid-template-columns:1fr;}
  .grid-2{grid-template-columns:1fr;}
  .demo-grid{grid-template-columns:1fr;}
  .nav-links{
    display:none;
    position:absolute;
    right:18px;
    top:58px;
    flex-direction:column;
    background:#0b1220;
    border:1px solid var(--border);
    padding:12px;
    border-radius:14px;
    width:200px;
  }
  .nav-links.open{display:flex;}
  .nav-btn{display:block;}
  .hero h1{font-size:34px;}
}