:root {
  --azul: #0b5fa5;
  --azul-oscuro: #08406f;
  --verde: #3aa655;
  --verde-oscuro: #24793d;
  --rosa: #d6336c;
  --teal: #0f9b8e;
  --gris-fondo: #f4f6f8;
  --texto: #22303c;
  --borde: #e1e6ea;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Segoe UI', Arial, sans-serif;
  color: var(--texto);
  line-height: 1.6;
}

a { text-decoration: none; color: inherit; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  background: #fff;
  border-bottom: 3px solid transparent;
  border-image: linear-gradient(90deg, var(--azul), var(--verde), var(--teal), var(--rosa)) 1;
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  padding: 10px 0;
  gap: 16px;
  flex-wrap: wrap;
}

.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.logo-img {
  height: 56px;
  width: 56px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.18);
}

.nav {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a { font-size: 0.95rem; color: var(--texto); }
.nav a:hover { color: var(--azul); }

.nav-login {
  background: linear-gradient(135deg, var(--azul), var(--verde));
  color: #fff !important;
  padding: 8px 18px;
  border-radius: 6px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.nav-login:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(11, 95, 165, 0.3);
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--azul), var(--azul-oscuro));
  color: #fff;
  padding: 90px 0;
  text-align: center;
}
.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(10px);
  opacity: 0.35;
}
.hero::before {
  width: 320px;
  height: 320px;
  background: var(--verde);
  top: -140px;
  right: -80px;
}
.hero::after {
  width: 260px;
  height: 260px;
  background: var(--teal);
  bottom: -120px;
  left: -60px;
}
.hero .container { position: relative; z-index: 1; }
.hero h1 { font-size: 2.2rem; max-width: 780px; margin: 0 auto 16px; }
.hero p { max-width: 620px; margin: 0 auto 28px; opacity: 0.92; }

.btn {
  display: inline-block;
  background: linear-gradient(135deg, #fff, #eef3f7);
  color: var(--azul-oscuro);
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 6px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.22);
}

/* Sections */
.section { padding: 70px 0; }
.section-alt { background: var(--gris-fondo); }

.section h2 {
  position: relative;
  font-size: 1.7rem;
  color: var(--azul-oscuro);
  margin-bottom: 32px;
  text-align: center;
}
.section h2::after {
  content: "";
  display: block;
  width: 64px;
  height: 4px;
  border-radius: 2px;
  margin: 12px auto 0;
  background: linear-gradient(90deg, var(--azul), var(--verde));
}
.contact-info h2::after { margin: 12px 0 0; }

#nosotros p {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
}
.card {
  background: #fff;
  border: 1px solid var(--borde);
  border-top: 4px solid var(--accent, var(--azul));
  border-radius: 8px;
  padding: 24px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
}
.card:nth-child(1) { --accent: var(--azul); }
.card:nth-child(2) { --accent: var(--verde); }
.card:nth-child(3) { --accent: var(--rosa); }
.card:nth-child(4) { --accent: var(--teal); }

.card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent, var(--azul));
  color: #fff;
  font-size: 1.2rem;
  margin-bottom: 14px;
}
.card h3 { margin-top: 0; color: var(--accent, var(--azul)); font-size: 1.05rem; }
.card p { margin-bottom: 0; font-size: 0.95rem; }

/* Calendario */
.calendario-intro {
  max-width: 760px;
  margin: 0 auto 32px;
  text-align: center;
}
.calendario-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}
.calendario-card {
  background: #fff;
  border: 1px solid var(--borde);
  border-top: 4px solid var(--accent, var(--azul));
  border-radius: 8px;
  overflow: hidden;
  margin: 0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.calendario-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}
.calendario-card:nth-of-type(1) { --accent: var(--azul); }
.calendario-card:nth-of-type(2) { --accent: var(--rosa); }
.calendario-card:nth-of-type(3) { --accent: var(--teal); }
.calendario-card:nth-of-type(4) { --accent: var(--verde); }
.calendario-card img {
  width: 100%;
  display: block;
}
.calendario-card figcaption {
  padding: 14px 18px;
  border-top: 1px solid var(--borde);
}
.calendario-card h3 {
  margin: 0 0 6px;
  color: var(--accent, var(--azul));
  font-size: 1.15rem;
}
.calendario-card p {
  margin: 0;
  font-size: 1rem;
  color: var(--texto);
}

/* Contact */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact-info h2 { text-align: left; }
.contact-info ul { list-style: none; padding: 0; margin: 0; }
.contact-info li { margin-bottom: 14px; }
.contact-info a:hover { color: var(--azul); }

.contact-map iframe {
  width: 100%;
  height: 260px;
  border: 0;
  border-radius: 8px;
}

@media (max-width: 720px) {
  .nav-wrap { justify-content: center; text-align: center; }
  .nav {
    gap: 10px 18px;
    flex-wrap: wrap;
    justify-content: center;
    width: 100%;
  }
  .logo-img { height: 44px; width: 44px; }
  .hero { padding: 60px 0; }
  .hero h1 { font-size: 1.7rem; }
  .contact-wrap { grid-template-columns: 1fr; }
}

/* Footer */
.site-footer {
  background: var(--azul-oscuro);
  color: #cfe0ee;
  text-align: center;
  padding: 20px 0;
  font-size: 0.85rem;
}