:root {
  --darkGray: #1a1d20;
  /* Más oscuro para mejor contraste */
  --lightGray: #4a5568;
  --gray: #718096;
  --lightBlue: #01b9ee;
  --orange: #fc7d00;
  --white: #ffffff;
  --bg-alt: #f8fafc;
}

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

body {
  font-family: "Open Sans", sans-serif;
  background-color: var(--white);
  color: var(--darkGray);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* NAVBAR PROFESIONAL */
nav {
  height: 80px;
  display: flex;
  align-items: center;
  background: var(--white);
  border-bottom: 1px solid #edf2f7;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--darkGray);
  text-decoration: none;
  letter-spacing: -1px;
}

.logo span {
  color: var(--lightBlue);
}

/* HERO SECTION - REINVENTADO */
.hero {
  padding: 100px 0;
  background: radial-gradient(at top right, #f1f5f9, #ffffff);
  text-align: center;
}

.hero-badge {
  display: inline-block;
  background: rgba(1, 185, 238, 0.1);
  color: var(--lightBlue);
  padding: 6px 16px;
  border-radius: 99px;
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  color: var(--darkGray);
}

.hero h1 span {
  display: block;
  color: var(--lightBlue);
}

.hero p {
  font-size: 1.25rem;
  color: var(--lightGray);
  max-width: 700px;
  margin: 0 auto 40px;
}

/* BOTONES DE ALTO IMPACTO */
.cta-group {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 20px 40px;
  border-radius: 12px;
  font-weight: 700;
  text-decoration: none;
  font-size: 1.1rem;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary {
  background-color: var(--darkGray);
  color: var(--white);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.btn-secondary {
  background-color: var(--white);
  color: var(--darkGray);
  border: 2px solid #e2e8f0;
}

.btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 25px 30px -10px rgba(0, 0, 0, 0.2);
}

.btn-secondary:hover {
  border-color: var(--lightBlue);
  color: var(--lightBlue);
}

/* FEATURES SECTION - GRID DINÁMICO */
.features {
  padding: 100px 0;
  background-color: var(--bg-alt);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 800;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.card {
  background: var(--white);
  padding: 40px;
  border-radius: 24px;
  border: 1px solid #edf2f7;
  transition: 0.3s;
  display: flex;
  flex-direction: column;
}

.card:hover {
  border-color: var(--lightBlue);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

.icon {
  font-size: 2rem;
  margin-bottom: 24px;
  height: 64px;
  width: 64px;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
}

.card h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.card p {
  color: var(--gray);
  font-size: 1rem;
  flex-grow: 1;
}

/* FOOTER */
footer {
  padding: 80px 0;
  background: var(--darkGray);
  color: var(--white);
  text-align: center;
}

.footer-logo {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.footer-logo span {
  color: var(--lightBlue);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero {
    padding: 60px 0;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

  .card {
    padding: 32px;
  }
}