/* ===== VARIABLES GLOBALES ===== */
:root {
  --primary-blue: #1e3a8a;
  --secondary-blue: #3b82f6;
  --primary-yellow: #fbbf24;
  --secondary-yellow: #f59e0b;
  --text-dark: #333;
  --text-light: #666;
  --bg-light: #f8f9fa;
  --bg-dark: #1a1a1a;
  --white: #ffffff;
  --shadow-light: rgba(0, 0, 0, 0.1);
  --shadow-medium: rgba(0, 0, 0, 0.15);
  --shadow-heavy: rgba(0, 0, 0, 0.3);
  --gradient-primary: linear-gradient(
    135deg,
    var(--primary-blue) 0%,
    var(--secondary-blue) 50%,
    var(--primary-yellow) 100%
  );
  --gradient-yellow: linear-gradient(
    45deg,
    var(--primary-yellow),
    var(--secondary-yellow)
  );
  --gradient-blue: linear-gradient(
    45deg,
    var(--primary-blue),
    var(--secondary-blue)
  );
  --border-radius: 20px;
  --border-radius-small: 15px;
  --border-radius-large: 50px;
  --transition: all 0.3s ease;
  --container-max-width: 1200px;
  --section-padding: 80px 0;
}

/* ===== RESET Y ESTILOS BASE ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  overflow-x: hidden;
}

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

/* ===== UTILIDADES ===== */
.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 60px;
  color: var(--text-dark);
  position: relative;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--gradient-blue);
  border-radius: 2px;
}

/* ===== ANIMACIONES ===== */
@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(-50px, -50px);
  }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .section-title {
    font-size: 2rem;
  }

  .container {
    padding: 0 15px;
  }
}