/* ============= LINE Seed Sans TH Font ============= */
@font-face {
  font-family: "LINE Seed Sans TH";
  font-style: normal;
  font-weight: 400;
  src: url("../fonts/LINESeedSansTH/LINESeedSansTH_W_Rg.woff2") format("woff2");
}

@font-face {
  font-family: "LINE Seed Sans TH";
  font-style: normal;
  font-weight: 700;
  src: url("../fonts/LINESeedSansTH/LINESeedSansTH_W_Bd.woff2") format("woff2");
}

/* ============= Global Styles ============= */
body {
  margin: 0;
  font-family: "LINE Seed Sans TH", sans-serif;
  background-color: #f4f4f4;
}

.main-header {
  background: white;
  padding: 20px 80px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  border-bottom: 2px solid #ffffffff ;
  /* หรือปรับสีตามธีม */
}

.main-header img {
  height: 40px;
}

.header {
  background: #42b0ff;
  color: white;
  padding: 40px 0;
  text-align: center;
}

.container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  padding: 20px;
}

.course-box {
  background: white;
  margin: 10px;
  padding: 15px;
  width: 220px;
  border-radius: 10px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.course-box h3 {
  font-size: 14px;
  text-align: center;
}

.btn-date {
  display: block;
  width: 100%;
  margin-top: 8px;
  padding: 8px;
  border: 1px solid #00aaff;
  background: white;
  color: #00aaff;
  border-radius: 8px;
  cursor: pointer;
}

.btn-date.selected {
  background: #00aaff;
  color: white;
}

.action-bar {
  text-align: center;
  margin: 30px;
}

.btn-main {
  padding: 10px 25px;
  border-radius: 5px;
  font-size: 16px;
  border: none;
  cursor: pointer;
}

#btnNext {
  background: #00aaff;
  color: white;
  margin-right: 10px;
}

#btnNext:disabled {
  background: #ccc;
  cursor: not-allowed;
}

#btnReset {
  background: #ddd;
}