/* ======= Hero Section for Detail Page ======= */
.hero {
  position: relative;
  background-size: cover;
  background-position: center;
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 30px;
}

.hero .overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero .overlay h1 {
  color: #fff;
  font-size: 2.5rem;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.7);
  margin: 0;
}

/* ======= Course Details Card ======= */
.course-details-card {
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  padding: 20px;
  border: 1px solid #e0e0e0;
  margin-bottom: 20px;
}

.detail-label {
  font-weight: 600;
  color: #333;
  margin-bottom: 5px;
  font-size: 1rem;
}

.detail-value {
  margin: 0 0 15px 0;
  color: #555;
  font-size: 1rem;
  padding-left: 10px;
  border-left: 3px solid #007bff;
}

.course-content {
  margin-top: 20px;
  padding: 15px;
  background-color: #f9f9f9;
  border-radius: 5px;
  border-left: 5px solid #007bff;
  color: #333;
  line-height: 1.6;
}

/* ======= Moderní kontejnery pro sloupce ======= */
.modern-columns {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
}

.modern-container {
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  padding: 20px;
  border: 1px solid #e0e0e0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
}

.modern-container:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.modern-container h3 {
  font-size: 1.5rem;
  color: #333;
  margin-bottom: 20px;
  font-weight: 600;
  border-bottom: 2px solid #007bff;
  padding-bottom: 10px;
}

/* Specifické styly pro kontaktní kontejner */
.contact-container {
  padding: 8px;
  height: auto;
}

.contact-container .big-phone {
  font-size: 1.5rem;
  font-weight: bold;
  color: #007bff;
  margin: 10px 0;
  text-align: center;
}

.contact-container .big-phone a {
  color: #007bff;
  text-decoration: none;
  transition: color 0.3s ease;
}

.contact-container .big-phone a:hover {
  color: #0056b3;
}

.contact-container .small-text {
  font-size: 0.9rem;
  color: #555;
  margin-top: 5px;
  text-align: center;
}

/* Zlepšení formuláře */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  font-weight: 600;
  color: #333;
}

.form-control {
  border-radius: 5px;
  border: 1px solid #ced4da;
  padding: 10px;
  transition: border-color 0.3s ease;
  width: 100%;
}

.form-control:focus {
  border-color: #007bff;
  box-shadow: 0 0 5px rgba(0, 123, 255, 0.5);
}

.btn-primary {
  background-color: #007bff;
  border-color: #007bff;
  border-radius: 5px;
  padding: 10px 20px;
  font-weight: 600;
  transition: background-color 0.3s ease;
  width: 100%;
}

.btn-primary:hover {
  background-color: #0056b3;
  border-color: #0056b3;
}

/* Zlepšení kontaktní sekce */
.contact-highlight {
  border-left: 5px solid #007bff;
  padding: 10px 15px;
  background-color: #f1f8ff;
  margin: 20px 0 0 0;
  font-weight: bold;
  border-radius: 5px;
}

/* Responzivní úpravy */
@media (max-width: 768px) {
  .modern-columns {
    flex-direction: column;
  }

  .modern-container {
    margin-bottom: 20px;
  }

  .btn-primary {
    width: auto;
  }

  .contact-container .big-phone {
    font-size: 2rem;
  }

  .course-details-card .row > div {
    margin-bottom: 10px;
  }
}