/* Блок-баннер */
.donation-banner {
  max-width: 1100px;
  margin: 60px auto;
  position: relative;
  padding: 0 20px;
}

.banner-container {
  position: relative;
  width: 100%;
  min-height: 270px;
  border-radius: 40px;
  overflow: hidden;
}

/* Фоновые слои */
.banner-bg {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: url(../img/fon-b.png);
  border-radius: 40px;
  background-size: contain;
  background-repeat: no-repeat;
  z-index: 1;
}

/* Контент */
.banner-content {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 102px 20px 60px;
}

.banner-title {
  color: white;
  font-size: clamp(20px, 4vw, 28px);
  font-family: Montserrat;
  font-weight: 800;
  line-height: 1.3;
  text-shadow: 0px 4px 20px rgba(0, 0, 0, 0.1);
  margin-bottom: 30px;
  max-width: 552px;
}

.btn-choose-courses {
  background: white;
  border-radius: 40px;
  padding: 10px 24px;
  min-width: 218px;
  height: 42px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  font-family: Montserrat;
  font-size: 20px;
  font-weight: 700;
  color: #0090d2;
  text-decoration: none;
}

.btn-choose-courses:hover {
  background: #0090d2;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 144, 210, 0.3);
}

/* Адаптивность баннера */
@media (max-width: 768px) {
  .donation-banner {
    margin: 40px auto;
  }
  .banner-bg {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: url(../img/m-cta.png);
    border-radius: 40px;
    background-size: cover;
    background-repeat: no-repeat;
    z-index: 1;
  }

  .banner-container {
    min-height: auto;
  }

  .banner-content {
    padding: 80px 20px 40px;
  }

  .banner-title {
    font-size: 22px;
  }

  .btn-choose-courses {
    min-width: 200px;
    font-size: 18px;
    height: 40px;
  }
}

@media (max-width: 480px) {
  .banner-content {
    padding: 35px 20px;
  }

  .banner-title {
    font-size: 16px;
    margin-bottom: 13px;
  }

  .btn-choose-courses {
    min-width: 137px;
    font-size: 11px;
    height: 28px;
    padding: 5px 16px;
  }
}