:root{
  --bg: #0f1724;
  --surface: #0b1020;
  --card: #0f1728;
  --text: #e6eef8;
  --muted: #9fb0c8;
  --primary: #6ee7b7;
  --accent-start: #7c3aed;
  --accent-end: #06b6d4;

  --container: 1100px;
  --radius: 12px;
  --glass: rgba(255,255,255,0.03);
  --glass-2: rgba(255,255,255,0.02);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  background: linear-gradient(180deg, #071026 0%, #081124 60%);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.5;
}

/* layout */
.container{
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}

/* NAV */
.nav{
  position:sticky;
  top:0;
  z-index:30;
  backdrop-filter: blur(6px);
  background: linear-gradient(180deg, rgba(6,8,12,0.35), rgba(6,8,12,0.15));
  border-bottom:1px solid rgba(255,255,255,0.03);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:14px 0;
}
.brand{
  font-weight:700;
  color:var(--text);
  text-decoration:none;
  font-size:1.1rem;
}
.brand .accent{color:var(--primary); margin-left:4px}
.nav-links{display:flex;gap:16px;align-items:center}
.nav-links a{color:var(--muted); text-decoration:none; padding:8px 10px; border-radius:8px}
.nav-links a:hover{color:var(--text); background:var(--glass-2)}

/* HERO */
.hero{padding:36px 0}
.hero-inner{
  display:flex;
  gap:32px;
  align-items:flex-start;
  justify-content:space-between;
  flex-wrap:wrap;
}
.hero-text{flex:1 1 520px;min-width:280px}
.hero-text h1{font-size:1.8rem; margin:0 0 8px; letter-spacing:-0.01em}
.lead{color:var(--muted); margin:0 0 14px}

/* forms */
.form-group{margin-bottom:12px}
label{display:block; font-size:0.9rem; margin-bottom:6px; color:var(--muted)}
select.full, textarea.full, .voice-select{
  width:100%;
  padding:10px 12px;
  border-radius:10px;
  background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  border:1px solid rgba(255,255,255,0.03);
  color:var(--text);
  resize:vertical;
}

/* controls */
.controls{display:flex; gap:12px; align-items:center; flex-wrap:wrap; margin-top:8px}
.control-group{min-width:180px; flex:1 1 220px}
.control-buttons{display:flex; gap:8px; align-items:center; flex-wrap:wrap}

/* buttons */
.btn{
  background: linear-gradient(135deg,var(--accent-start), var(--accent-end));
  color:white;
  padding:8px 12px;
  border-radius:10px;
  text-decoration:none;
  border:0;
  cursor:pointer;
  box-shadow: 0 6px 18px rgba(12,10,30,0.45);
}
.btn-ghost{
  background:transparent;
  border:1px solid rgba(255,255,255,0.06);
  color:var(--text);
}
.btn-outline{
  background:transparent;
  border:1px solid rgba(255,255,255,0.08);
  color:var(--muted);
}

/* demo card */
.hero-demo{flex:0 0 360px; min-width:260px}
.card{
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  padding:16px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,0.03);
  box-shadow: 0 8px 30px rgba(2,6,23,0.6);
}
.small-cta .btn{padding:6px 10px; font-size:0.95rem}

/* features */
.section-title{color:var(--text); margin:28px 0 16px; font-size:1.1rem}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.card .card-icon{font-size:22px; margin-bottom:8px}

/* CTA band */
.cta-band{margin:28px 0; padding:14px 0; background: linear-gradient(90deg, rgba(12,10,30,0.4), rgba(12,18,36,0.2)); border-radius:12px; border:1px solid rgba(255,255,255,0.03)}
.cta-inner{display:flex;gap:20px;align-items:center;justify-content:space-between;flex-wrap:wrap;padding:10px 0}

/* footer */
.footer{padding:16px 0;color:var(--muted);border-top:1px solid rgba(255,255,255,0.02)}
.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}

/* small helper */
.muted{color:var(--muted); font-size:0.95rem}

/* responsiveness */
@media (max-width:900px){
  .features-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:680px){
  .hero-inner{gap:16px}
  .hero{padding:18px 0}
  .hero-text h1{font-size:1.3rem}
  .features-grid{grid-template-columns:1fr}
  .hero-demo{flex:1 1 100%}
}