:root {
  --bg-gradient: linear-gradient(135deg, #020b05 0%, #000000 70%, #0d0603 100%);
  --green-neon: #00ff66;
  --green-glow: rgba(0, 255, 102, 0.4);
  --gold: #d4af37;
  --gold-glow: rgba(212, 175, 55, 0.3);
  --white: #ffffff;
  --blue-fiber: #00d9ff;
  --red-alert: #ff3366;
  --brown-metallic: #2a1b14;
  --glass-bg: rgba(10, 20, 15, 0.65);
  --glass-border: rgba(0, 255, 102, 0.15);
}

body {
  background: var(--bg-gradient);
  color: var(--white);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Efeito Fibra Óptica Luminosa */
.fiber-bg {
  position: fixed;
  top: 0; left: 0; width: 100vw; height: 100vh;
  pointer-events: none;
  z-index: 0;
  background: 
    radial-gradient(circle at 20% 30%, rgba(0, 217, 255, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(0, 255, 102, 0.08) 0%, transparent 40%);
}

.fiber-line {
  position: absolute;
  background: linear-gradient(90deg, transparent, var(--blue-fiber), var(--green-neon), transparent);
  height: 1px;
  width: 100%;
  opacity: 0.3;
  animation: pulseFiber 4s infinite alternate;
}

@keyframes pulseFiber {
  0% { opacity: 0.1; transform: translateY(0); }
  100% { opacity: 0.5; transform: translateY(10px); }
}

/* Containers Glassmorphism */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  transition: all 0.3s ease;
}

.glass-card:hover {
  border-color: var(--green-neon);
  box-shadow: 0 0 20px var(--green-glow);
}

/* Botões Customizados */
.btn-gold {
  background: linear-gradient(45deg, #d4af37, #f9e076);
  color: #000;
  font-weight: bold;
  border: none;
  padding: 12px 24px;
  border-radius: 6px;
  cursor: pointer;
  text-transform: uppercase;
  transition: all 0.3s;
}

.btn-gold:hover {
  box-shadow: 0 0 15px var(--gold-glow);
  transform: translateY(-2px);
}

.btn-neon {
  background: transparent;
  color: var(--green-neon);
  border: 1px solid var(--green-neon);
  padding: 12px 24px;
  border-radius: 6px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s;
}

.btn-neon:hover {
  background: var(--green-neon);
  color: #000;
  box-shadow: 0 0 15px var(--green-glow);
}