* {
  margin: 0; 
  padding: 0;
  box-sizing: border-box;
}

body {
  background: #020617;
  color: #e5e7eb;
  font-family: 'Inter', sans-serif;
  overflow-x: hidden;
}

/* ===== MESH BACKGROUND ===== */
.mesh-bg {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, #22d3ee33, transparent 40%),
              radial-gradient(circle at 80% 10%, #8b5cf633, transparent 40%),
              radial-gradient(circle at 50% 80%, #ec489933, transparent 40%);
  filter: blur(100px);
  z-index: -2;
  animation: meshMove 12s infinite alternate;
}

@keyframes meshMove {
  from { transform: scale(1) translate(0,0); }
  to { transform: scale(1.2) translate(-60px, 60px); }
}

#particle-canvas {
  position: fixed;
  inset: 0;
  z-index: -3;
}

/* ===== NAVBAR ===== */
header {
  position: fixed;
  width: 100%;
  padding: 24px 80px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(20px);
  background: rgba(2,6,23,0.7);
  z-index: 1000;
}

.logo {
  font-family: 'Orbitron', sans-serif;
  font-size: 22px;
  letter-spacing: 4px;
  color: #22d3ee;
  text-shadow: 0 0 20px #22d3ee;
}

nav a {
  margin-left: 40px;
  color: #cbd5f5;
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 2px;
  transition: 0.3s;
}

nav a:hover {
  color: #22d3ee;
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 160px 80px;
}

.hero-content h1 {
  font-family: 'Orbitron', sans-serif;
  font-size: 80px;
  line-height: 1.05;
  margin-bottom: 30px;
}

.glow-text span {
  color: #22d3ee;
  text-shadow: 0 0 40px #22d3ee, 0 0 80px #8b5cf6;
}

.hero-content p {
  max-width: 600px;
  color: #cbd5f5;
  font-size: 17px;
  line-height: 1.8;
  margin-bottom: 40px;
}

/* ===== BUTTONS ===== */
.btn {
  padding: 14px 36px;
  border-radius: 40px;
  font-size: 13px;
  letter-spacing: 2px;
  text-decoration: none;
  margin-right: 20px;
  transition: 0.4s;
}

.neon {
  background: linear-gradient(90deg, #22d3ee, #8b5cf6);
  color: #020617;
  box-shadow: 0 0 40px #8b5cf6;
}

.neon:hover {
  transform: scale(1.1);
  box-shadow: 0 0 80px #22d3ee;
}

.outline {
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
}

.outline:hover {
  border-color: #22d3ee;
  color: #22d3ee;
}

/* ===== GLASS PANELS ===== */
.glass-panel {
  margin: 120px 80px;
  padding: 90px;
  border-radius: 40px;
  background: rgba(255,255,255,0.03);
  backdrop-filter: blur(30px);
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 0 80px rgba(139,92,246,0.25);
}

.glass-panel h2 {
  font-family: 'Orbitron', sans-serif;
  color: #22d3ee;
  letter-spacing: 3px;
  margin-bottom: 20px;
}

.glass-panel p {
  color: #cbd5f5;
  line-height: 1.9;
}

/* ===== SYSTEM CARDS ===== */
.systems {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 50px;
  padding: 120px 80px;
}

.system-card {
  padding: 60px 40px;
  border-radius: 30px;
  background: linear-gradient(145deg, rgba(255,255,255,0.06), rgba(255,255,255,0.01));
  border: 1px solid rgba(255,255,255,0.1);
  backdrop-filter: blur(20px);
  transition: 0.4s;
  position: relative;
  overflow: hidden;
}

.system-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent, rgba(34,211,238,0.3), transparent);
  opacity: 0;
  transition: 0.4s;
}

.system-card:hover::after {
  opacity: 1;
}

.system-card:hover {
  box-shadow: 0 0 100px rgba(34,211,238,0.5);
}

.system-card h3 {
  font-family: 'Orbitron', sans-serif;
  color: #22d3ee;
  margin-bottom: 10px;
}

.system-card p {
  color: #cbd5f5;
  font-size: 14px;
  line-height: 1.7;
}

/* ===== CONTACT ===== */
.contact {
  text-align: center;
}

/* ===== WHATSAPP ===== */
/* ===== WHATSAPP ORB ===== */
.whatsapp-orb {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 62px;
  height: 62px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #22d3ee;
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(34,211,238,0.3);
  box-shadow:
    0 0 20px rgba(34,211,238,0.4),
    inset 0 0 20px rgba(34,211,238,0.2);
  z-index: 999;
  transition: 0.4s ease;
  animation: pulseGlow 2.5s infinite;
}

.whatsapp-orb svg {
  width: 28px;
  height: 28px;
}

.whatsapp-orb:hover {
  transform: scale(1.15);
  box-shadow:
    0 0 40px rgba(34,211,238,0.8),
    0 0 80px rgba(139,92,246,0.6);
  color: #8b5cf6;
}

/* Glow Pulse */
@keyframes pulseGlow {
  0% {
    box-shadow: 0 0 20px rgba(34,211,238,0.4);
  }
  50% {
    box-shadow: 0 0 40px rgba(139,92,246,0.8);
  }
  100% {
    box-shadow: 0 0 20px rgba(34,211,238,0.4);
  }
}

.whatsapp-float:hover {
  transform: scale(1.2);
}

/* ===== RESPONSIVE ===== */
@media(max-width:900px){
  header { padding: 20px 30px; }
  .hero { padding: 140px 30px; }
  .hero-content h1 { font-size: 42px; }
  .glass-panel { margin: 80px 30px; padding: 50px; }
  .systems { padding: 80px 30px; }
}
/* ===== CONTACT FORM (FIXED & POLISHED) ===== */

.contact {
  max-width: 900px;
  margin: 120px auto;
  padding: 60px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(20px);
  box-shadow: 0 0 60px rgba(0, 255, 255, 0.08);
  text-align: center;
}

.contact-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 28px;
  letter-spacing: 2px;
  margin-bottom: 40px;
  color: #66f2ff;
}

.contact-form {
  max-width: 520px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 22px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid rgba(0, 255, 255, 0.25);
  background: rgba(0, 0, 0, 0.45);
  color: #fff;
  font-size: 15px;
  outline: none;
  transition: 0.3s;
}

.contact-form textarea {
  min-height: 130px;
  resize: none;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: #66f2ff;
  box-shadow: 0 0 18px rgba(102, 242, 255, 0.4);
}

/* Button */
.btn.full-width {
  width: 100%;
  padding: 16px;
  margin-top: 10px;
  font-size: 15px;
  letter-spacing: 1px;
}

/* Footer note */
.contact-note {
  margin-top: 28px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}