html, body {
      height: 100%;
      margin: 0;
      padding: 0;
      font-family: Arial, sans-serif;
      background: 
      color: #333;
}

body {
  font-family: Arial, sans-serif;
  line-height: 0,01;
  
   background-color: #ffffff; 
  min-height: 100dvh; /* asegura cubrir toda la pantalla */
  color: #333;
  display: flex;
  flex-direction: column;
}

 @keyframes slideUp {
      from {
        transform: translateY(100px);
        opacity: 0;
      }
      to {
        transform: translateY(0);
        opacity: 1;
      }
    }

/* HEADER */
header {
  display: flex;
      flex-direction: column;
      align-items: center;
      padding: 40px 20px;
      animation: slideUp 1s ease-out;
}

  .header-card {
      background: rgba(158, 196, 201, 0.8);
      border-radius: 16px;
    
      display: grid;
      grid-template-columns: 190px 1fr;
      gap: 20px;
      align-items: center;
      padding: 20px 30px;
      max-width: 700px;
      width: 90%;
      backdrop-filter: blur(10px);
      animation: slideUp 1.2s ease-out;
    }

header img {
  width: 180px;
      height: 180px;
      border-radius: 50%;
      object-fit: cover;
      
}

 .header-info {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 8px 16px;
      font-size: 0.95em;
    }

      .header-info strong {
      color: #1c0872;
    }

      .header-name {
      grid-column: span 2;
      font-size: 1.6em;
      color: #632e15;
      text-align: center;
      margin-bottom: 10px;
      font-weight: bold;
    }

/* SEPARADOR */
.separator {
    border: 0;
    height: 1px;
    background-color: #a19898; 
    margin: 10px 0 40px 0;
}

/* COMPAÑEROS DE GRUPO  */

.group-container {
    max-width: 900px;
    margin: 40px auto;
    padding: 20px;
    text-align: center;
}

/* TÍTULO */
.group-title {
    text-align: center;
    font-size: 1em;
    font-weight: bold;
    color: #dedce6;
    padding: 15px 30px;
    margin-bottom: 30px;
    border-radius: 8px;
    background-color: #9e6868; 
    border: 1px solid #5f5e69;
}

/* CONTENEDOR DE LA CUADRÍCULA */
.group-cards-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr); 
    gap: 20px;
}

/* ESTILO TARJETAS */
.group-card {
    background-color: rgb(160, 183, 194);
    border: 2px solid #1a018b; 
    border-radius: 12px;
    padding: 20px 10px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(61, 38, 38, 0.05); 
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
}

/* FOTO */
.group-photo-placeholder {
    width: 100px;
    height: 100px;
    background-color: #ccc;
    border-radius: 50%;
    margin-bottom: 15px;
}

/* NOMBRE Y CARRERA */
.group-name {
    font-size: 1.2em;
    font-weight: bold;
    color: #4848a8; 
    margin: 5px 0 2px 0;
}

.group-career {
    font-size: 0.9em;
    color: #523e69; 
    margin: 0 0 15px 0;
}

/* BOTÓN "VER PERFIL" */
.profile-button {
    display: inline-block;
    text-decoration: none;
    font-weight: bold;
    color: #0a0096; 
    border: 2px solid #ffffff; 
    padding: 8px 20px;
    border-radius: 20px;
    transition: background-color 0.3s, color 0.3s;
}

/* NAV */
nav {
  background: transparent;
  padding: 15px;
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

nav a {
  text-decoration: none;
  color: #be8787;
  font-weight: bold;
  border: 1px solid #f1b4cb;
  padding: 6px 14px;
  border-radius: 20px;
  transition: all 0.3s ease;
  background: transparent;
}

nav a:hover {
  background: rgba(109, 18, 74, 0.2);
}

/* MAIN */
main {
  padding: 20px;
}

/* MATERIAS */
.materias-container {
  display: grid;
  grid-template-columns: repeat(2, 1fr); /* siempre 2 columnas */
  gap: 30px;
  max-width: 800px;   /* límite de ancho */
  margin: 0 auto;      /* centra el grid */
  padding: 40px 20px;  /* espacio interno */
}

.materias-section {
  background: #a5afb3;
   border: 1px solid #5721af;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.materias-section h3 {
  margin-top: 0;
  text-align: center;
  color: #1e1785;
}

/* LISTAS */
ul.materias {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px 12px;
  list-style: '✿ ';
  padding-left: 10px;
  margin: 0;
}

ul.materias li {
  padding-left: 6px;
}

/* FOOTER */
footer {
    text-align: center;
    padding: 40px 20px 20px 20px;
    background-color: rgb(165, 180, 180);
    border-top: 1px solid #ffffff;
    margin-top: 40px;
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
}

.footer-logos {
    display: flex;
    justify-content: center;
    gap: 15px;
    font-size: 0.8em;
    color: #49230a; 
    font-weight: bold;
    margin-bottom: 20px;
}

.data-col {
    flex: 1; 
    min-width: 200px; 
}

.data-columns {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    text-align: left;
    line-height: 1.4;
}

.data-heading-main {
    font-weight: bold;
    color: #532a19;
    margin-top: 20px;
    margin-bottom: 5px;
    font-size: 1.1em;
    }

.footer-legal {
    font-size: 0.75em;
    color: #3d230e;
    line-height: 1.5;
    padding: 0 10px;
}