@charset "UTF-8";

/*
  Theme Name: close
  Version: 1.0
  Author: K.Oota
  Description:close
*/

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

body {
 font-family: "Helvetica Neue", Arial, "Hiragino Sans", "Meiryo", sans-serif;
 background-color: #ffffff;
 color: #1e3a8a;
 line-height: 1.7;
 padding: 40px 20px;
}

.container {
 max-width: 720px;
 margin: 0 auto;
}

.header {
 display: flex;
 justify-content: space-between;
 align-items: center;
 margin-bottom: 35px;
 flex-wrap: wrap;
 gap: 15px;
}

.lab-title {
 font-size: 2.1rem;
 font-weight: 700;
 color: #1e3a8a;
 max-width: 80%;
 line-height: 1.1;
}

.lang-btn {
 background-color: #1e3a8a;
 color: #ffffff;
 padding: 8px 20px;
 border-radius: 30px;
 text-decoration: none;
 font-size: 0.95rem;
 font-weight: 600;
 white-space: nowrap;
}

/* 繧ｳ繝ｳ繝�Φ繝��繝�け繧ｹ */
.content-box {
 border: 2px solid #1e3a8a;
 border-radius: 8px;
 padding: 55px 50px 60px;
 background-color: #ffffff;
 text-align: center;
}

.title {
 font-size: 1.55rem;
 font-weight: 700;
 margin-bottom: 35px;
 color: #1e3a8a;
}

.main-text {
 font-size: 1.08rem;
 margin-bottom: 50px;
 color: #333333;
}

/* 遐皮ｩｶ螳､繧ｻ繧ｯ繧ｷ繝ｧ繝ｳ */
.lab-section {
 margin-bottom: 48px;
}

.lab-section:last-child {
 margin-bottom: 0;
}

.lab-name {
 font-size: 1.35rem;
 font-weight: 700;
 color: #1e3a8a;
 margin-bottom: 6px;
}

.lab-members {
 font-size: 1.02rem;
 color: #555555;
 margin-bottom: 22px;
}

/* 繝懊ち繝ｳ */
.btn {
 display: block;
 max-width: 460px;
 margin: 0 auto;
 padding: 17px 30px;
 font-size: 1.05rem;
 font-weight: 600;
 text-align: center;
 text-decoration: none;
 border-radius: 6px;
 transition: all 0.3s ease;
}

.btn.active {
 background-color: #1e3a8a;
 color: #ffffff;
}

.btn.active:hover {
 background-color: #16316f;
 transform: translateY(-2px);
}

.btn.disabled {
 background-color: #cccccc;
 color: #666666;
 cursor: not-allowed;
 pointer-events: none;
}

@media (max-width: 600px) {
 .content-box {
  padding: 45px 30px;
 }

 .lab-title {
  font-size: 1.85rem;
 }

 .title {
  font-size: 1.4rem;
 }

 .main-text {
  font-size: 1.02rem;
 }

 .btn {
  font-size: 1rem;
  padding: 15px 25px;
 }
}

@media (max-width: 468px) {
 .header {
  justify-content: center;
  text-align: center;
 }

 .lab-title {
  max-width: 100%;
  margin-bottom: 10px;
 }
}