:root {
  --primary: #3b82f6;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --card: rgba(18, 24, 42, 0.92);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

body {
  min-height: 100vh;
  color: var(--text);
}

/* COMPONENTES REUTILIZABLES */

.btn {
  padding: 20px 38px;
  border-radius: 18px;
  font-size: 1.15rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all .2s ease;
}

.btn.primary {
  background: var(--primary);
  color: #fff;
}

.btn.primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 40px rgba(59,130,246,.45);
}

/* CARD reutilizable */

.card {
  background: rgba(20,25,45,0.85);
  border-radius: 22px;
  padding: 30px;
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 15px 40px rgba(0,0,0,0.6);
}

/* Animación global */

@keyframes fadeUp{
  from{
    opacity:0;
    transform:translateY(15px);
  }
  to{
    opacity:1;
    transform:translateY(0);
  }
}