/* CSS Document */

.solar-card {
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
  border-radius: 15px;
  background-color: #fff;
  padding: 2.5rem;
  max-width: 800px;
  margin: 2rem auto;
  font-family: 'Arial', sans-serif;
  color: #333;
  line-height: 1.6;
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.solar-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 150px;
  background: linear-gradient(135deg, #FFD700, #FFA500);
  border-top-left-radius: 15px;
  border-top-right-radius: 15px;
  z-index: -1;
}

.solar-card-content {
  position: relative;
  margin-top: 1.5rem;
}

.solar-title {
  color: #333;
  font-size: 2rem;
  font-weight: bold;
  text-align: center;
  margin-bottom: 0.5rem;
  padding-top: 2rem;
  position: relative;
}

.solar-subtitle {
  color: #666;
  font-size: 1.2rem;
  text-align: center;
  margin-bottom: 1.5rem;
}

.solar-description {
  font-size: 1rem;
  margin-bottom: 1.5rem;
  text-align: center;
}

.solar-features {
  list-style-type: none;
  padding: 0;
  margin: 0;
}

.solar-features li {
  display: flex;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.solar-icon {
  font-size: 1.5rem;
  margin-right: 1rem;
  flex-shrink: 0;
}

.solar-feature-text {
  font-size: 1rem;
  font-weight: 500;
}

.solar-footer {
  font-size: 1rem;
  font-weight: bold;
  text-align: center;
  margin-top: 2rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .solar-card {
    padding: 1.5rem;
    margin: 1rem;
  }
  .solar-title {
    font-size: 1.5rem;
  }
  .solar-subtitle {
    font-size: 1rem;
  }
}

.video-container {
  /* ??????????????????????? */
  display: flex;
  justify-content: center;
  align-items: center;

  /* ?????????????????? responsive (??????? 16:9) */
  position: relative;
  padding-bottom: 56.25%; /* 9 / 16 = 0.5625 */
  height: 0;
  overflow: hidden;
  max-width: 100%;
}

.video-container iframe {
  /* ????? iframe ?????????????????? container */
  position: absolute;
  top: 0;
  left: 0;
  width: 50%;
  height: 50%;
}
.video-container {
  text-align: center;
}

/* ???????????? Responsive Video ????????????????????????????????? */
.video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* ????????? 16:9 (???????/????????? * 100) */
  height: 0;
  overflow: hidden;
  max-width: 800px; /* ????????????????????????????????????? */
  margin: 0 auto; /* ????????????????????????????? */
}

/* ????? iframe ????????????????? wrapper */
.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}