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

/* BASE */
body {
  font-family: "Segoe UI", Arial, sans-serif;
  background-color: #f5f7fa;
  color: #333;
  line-height: 1.5;
}

/* =====================
   HEADER
===================== */
.header {
  background-color: #0f2a44;
  color: #ffffff;
  padding: 22px 24px;
}

.header-flex {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.logo-header {
  max-width: 140px;
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
}

.header-text h1 {
  font-size: 30px;
  font-weight: 600;
}

.header-text p {
  margin-top: 4px;
  font-size: 14px;
  opacity: 0.85;
}

/* =====================
   CONTENEDOR
===================== */
.container {
  max-width: 1100px;
  margin: 50px auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
}

/* =====================
   TARJETAS
===================== */
.card {
  background-color: #ffffff;
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.06);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  animation: fadeIn 0.4s ease-in-out;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.12);
}

/* HEADER INTERNO CARD */
.card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.card-header i {
  font-size: 20px;
}

/* Colores por sección */
.card.operativo {
  border-top: 4px solid #1e88e5;
}
.card.operativo .card-header i {
  color: #1e88e5;
}

.card.ventas {
  border-top: 4px solid #43a047;
}
.card.ventas .card-header i {
  color: #43a047;
}

.card.calidad {
  border-top: 4px solid #fb8c00;
}
.card.calidad .card-header i {
  color: #fb8c00;
}

.card h2 {
  margin: 0;
  font-size: 20px;
  color: #0f2a44;
}

.card p {
  font-size: 14px;
  color: #555;
}

/* =====================
   BOTONES
===================== */
.card a {
  display: inline-block;
  margin-top: 18px;
  padding: 14px 28px;
  background-color: #0f2a44;
  color: #ffffff;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.card a:hover {
  background-color: #163d63;
  transform: translateY(-2px);
}

/* =====================
   FOOTER
===================== */
.footer {
  margin-top: 40px;
  text-align: center;
  padding: 18px;
  font-size: 13px;
  background-color: #e9ecef;
  color: #555;
}

/* =====================
   RESPONSIVE
===================== */
@media (max-width: 700px) {
  .header-flex {
    flex-direction: column;
    text-align: center;
  }

  .logo-header {
    max-width: 120px;
  }

  .header-text h1 {
    font-size: 26px;
  }
}

/* =====================
   ANIMACIONES
===================== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* =====================
   LOGO PÁGINAS INTERNAS
===================== */
.logo-interno {
  max-width: 180px;
  width: 100%;
  height: auto;
  display: block;
  margin: 20px auto;
}