@charset "UTF-8";

/*トップ画像背景文字*/
.voice__boxTtl h2 {
    background-image: url("../img/teacher/teacher.png");
}

/* ============================================================
   イントロセクション
   ============================================================ */
.teacher-intro {
    background: linear-gradient(135deg, #1a3a5c 0%, #226ba8 100%);
    padding: 64px 0;
    text-align: center;
    color: #ffffff;
}
.teacher-intro__inner {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px;
}
.teacher-intro__lead {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: 20px;
    line-height: 1.5;
}
.teacher-intro__txt {
    font-size: 15px;
    line-height: 1.9;
    opacity: 0.92;
    margin-bottom: 32px;
}
.teacher-intro__badges {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}
.teacher-intro__badge {
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.5);
    color: #ffffff;
    font-size: 13px;
    font-weight: 700;
    padding: 6px 18px;
    border-radius: 50px;
    letter-spacing: 0.05em;
}

/* ============================================================
   講師グリッド
   ============================================================ */
.teacher-grid-wrap {
    max-width: 1100px;
    margin: 0 auto;
    padding: 72px 24px 80px;
}
.teacher-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 36px;
    list-style: none;
    padding: 0;
    margin: 0;
}

/* ============================================================
   講師カード
   ============================================================ */
.teacher-card {
    position: relative;
    background: #ffffff;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 3px 16px rgba(11, 31, 56, 0.09);
    border-top: 3px solid transparent;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    display: flex;
    flex-direction: column;
}
.teacher-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 36px rgba(11, 31, 56, 0.16);
    border-top-color: #1a5fa8;
}

/* 写真エリア */
.teacher-card__img-wrap {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    background: #e8edf2;
}
.teacher-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
    display: block;
    transition: transform 0.35s ease;
}
.teacher-card:hover .teacher-card__img {
    transform: scale(1.04);
}
.teacher-card__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(11,31,56,0.80) 0%, rgba(26,95,168,0.70) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.teacher-card:hover .teacher-card__overlay {
    opacity: 1;
}
.teacher-card__more-label {
    color: #ffffff;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.1em;
    border: 1px solid rgba(255,255,255,0.7);
    padding: 8px 22px;
    border-radius: 3px;
}

/* テキストエリア */
.teacher-card__body {
    padding: 24px 24px 12px;
    flex: 1;
}
.teacher-card__name {
    font-size: 17px;
    font-weight: 700;
    color: #0b1f38;
    margin-bottom: 10px;
    letter-spacing: 0.04em;
}
.teacher-card__txt {
    font-size: 13px;
    line-height: 1.8;
    color: #445566;
}

/* フッター */
.teacher-card__footer {
    padding: 12px 24px 20px;
    border-top: 1px solid #eef1f5;
}
.teacher-card__cta {
    font-size: 13px;
    font-weight: 700;
    color: #1a5fa8;
    letter-spacing: 0.05em;
}
.teacher-card__arrow {
    display: inline-block;
    transition: transform 0.2s ease;
}
.teacher-card:hover .teacher-card__arrow {
    transform: translateX(4px);
}

/* 全体リンク */
.teacher-card__link {
    position: absolute;
    inset: 0;
    z-index: 10;
}


/* ============================================================
   SP
   ============================================================ */
@media screen and (max-width: 750px) {
.teacher-intro {
    padding: 48px 0;
}
.teacher-intro__lead {
    font-size: 18px;
}
.teacher-intro__txt {
    font-size: 13px;
}
.teacher-grid-wrap {
    padding: 10vw 6vw 12vw;
}
.teacher-grid {
    grid-template-columns: 1fr;
    gap: 24px;
}
.teacher-card__img-wrap {
    aspect-ratio: 3 / 2;
}
}

/* ============================================================
   single-teacher 戻るボタン
   ============================================================ */
.news__box.news__boxInner .Link__button.Link__buttonMin p img {
    width: 150px;
    text-align: center;
}

/* ============================================================
   PC 2カラム対応（中間幅）
   ============================================================ */
@media screen and (min-width: 751px) and (max-width: 1024px) {
.teacher-grid {
    grid-template-columns: repeat(2, 1fr);
}
}