/* ===================================
   VARIABLES Y RESET
   =================================== */
:root {
  --rojo-uta: #a50000;
  --rojo-uta-oscuro: #7a0000;
  --rojo-uta-claro: #fbeaea;
  --gris-texto: #333;
  --gris-claro: #f8f9fa;
  --sombra: 0 8px 30px rgba(165, 0, 0, 0.12);
  --sombra-hover: 0 15px 50px rgba(165, 0, 0, 0.25);
}

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

html, body {
  margin: 0;
  padding: 0;
  background: linear-gradient(135deg, #fff5f5 0%, #ffe9e9 50%, #ffd8d8 100%);
  background-attachment: fixed;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  color: var(--gris-texto);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 80%, rgba(165, 0, 0, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(165, 0, 0, 0.05) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* ===================================
   HEADER
   =================================== */
header {
  background: none;
  padding: 0;
  margin: 0;
  text-align: center;
}

header img {
  width: 100%;
  display: block;
}

/* ===================================
   MAIN CONTAINER
   =================================== */
main {
  flex: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 20px;
  position: relative;
  z-index: 1;
  animation: fadeIn 0.8s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===================================
   TÍTULO Y ENCABEZADO
   =================================== */
.titulo {
  text-align: center;
  margin-bottom: 3rem;
  animation: slideDown 0.8s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.titulo h1 {
  color: var(--rojo-uta);
  margin: 0 0 1rem 0;
  font-size: 2.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--rojo-uta) 0%, var(--rojo-uta-oscuro) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.titulo p {
  color: #666;
  font-size: 1.1rem;
  margin: 0.5rem 0;
}

.badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--rojo-uta-claro) 0%, #ffe0e0 100%);
  color: var(--rojo-uta);
  padding: 0.5rem 1.5rem;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-top: 1rem;
  box-shadow: 0 4px 15px rgba(165, 0, 0, 0.15);
  transition: all 0.3s ease;
}

.badge:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(165, 0, 0, 0.25);
}

/* ===================================
   GRID DE TARJETAS
   =================================== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.card {
  background: white;
  padding: 2rem;
  border-radius: 20px;
  border: 1px solid rgba(165, 0, 0, 0.1);
  box-shadow: var(--sombra);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
  animation: cardAppear 0.6s ease-out backwards;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--rojo-uta) 0%, var(--rojo-uta-oscuro) 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.card:hover::before {
  transform: scaleX(1);
}

.card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: var(--sombra-hover);
  border-color: var(--rojo-uta-claro);
}

@keyframes cardAppear {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card:nth-child(1) { animation-delay: 0.1s; }
.card:nth-child(2) { animation-delay: 0.2s; }
.card:nth-child(3) { animation-delay: 0.3s; }
.card:nth-child(4) { animation-delay: 0.4s; }
.card:nth-child(5) { animation-delay: 0.5s; }
.card:nth-child(6) { animation-delay: 0.6s; }
.card:nth-child(7) { animation-delay: 0.7s; }

.nombre {
  font-weight: 700;
  color: #222;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.rol {
  font-size: 0.95rem;
  color: #777;
  margin-bottom: 1rem;
  font-weight: 500;
}

.badge-miembro {
  display: inline-block;
  background: linear-gradient(135deg, var(--rojo-uta) 0%, var(--rojo-uta-oscuro) 100%);
  color: white;
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(165, 0, 0, 0.3);
  transition: all 0.3s ease;
}

.badge-miembro:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 18px rgba(165, 0, 0, 0.4);
}

/* ===================================
   FOOTER
   =================================== */
footer {
  background: linear-gradient(135deg, var(--rojo-uta-oscuro) 0%, #3d0000 100%);
  color: white;
  text-align: center;
  padding: 1.5rem;
  font-size: 0.95rem;
  margin-top: auto;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
}

footer p {
  margin: 0;
  font-weight: 500;
}

/* ===================================
   RESPONSIVE
   =================================== */
@media (max-width: 768px) {
  .titulo h1 {
    font-size: 2rem;
  }
  
  .titulo p {
    font-size: 1rem;
  }
  
  .grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  main {
    padding: 2rem 15px;
  }
  
  .card {
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  .titulo h1 {
    font-size: 1.6rem;
  }
  
  .badge {
    font-size: 0.8rem;
    padding: 0.4rem 1rem;
  }
}