:root {
  --bg-color: #f4f7f6;
  --text-main: #2c3e50;
  --card-bg: #ffffff;
  --primary: #6c4ef0;
  --hover-color: #f8f9fa;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Cabecera */
header {
  background-color: var(--text-main);
  color: white;
  padding: 40px 20px;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

header h1 {
  margin: 0;
  font-size: 2.5em;
  letter-spacing: 1px;
}

header p {
  margin-top: 10px;
  color: #a8b8d0;
  font-size: 1.1em;
}

/* Contenedor Principal (Grid) */
.container {
  flex: 1;
  max-width: 1000px;
  margin: 50px auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  width: 100%;
  box-sizing: border-box;
}

/* Tarjetas de Aplicación */
.app-card {
  background-color: var(--card-bg);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  text-decoration: none;
  color: var(--text-main);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border-top: 5px solid transparent;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.app-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

/* Colores de Borde por App */
.card-odoo {
  border-top-color: #714b67;
}

.card-java {
  border-top-color: #b07219;
}

.card-docs {
  border-top-color: #2196f3;
}

.app-icon {
  font-size: 3.5em;
  margin-bottom: 20px;
  color: var(--text-main);
}

.card-odoo .app-icon {
  color: #714b67;
}

.card-java .app-icon {
  color: #b07219;
}

.card-docs .app-icon {
  color: #2196f3;
}

.app-title {
  font-size: 1.5em;
  font-weight: 600;
  margin-bottom: 10px;
}

.app-desc {
  font-size: 0.95em;
  color: #666;
  margin-bottom: 25px;
  line-height: 1.5;
}

/* Etiquetas de Tecnologia */
.tech-tags {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.tag {
  background-color: #e9ecef;
  color: #495057;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75em;
  font-weight: bold;
  letter-spacing: 0.5px;
}

/* Footer */
footer {
  text-align: center;
  padding: 25px;
  background-color: var(--text-main);
  color: #8a9ba8;
  font-size: 0.9em;
}

footer strong {
  color: white;
}