/* 頁首樣式 */


.btn {
    background: white;
    color: #0056b3;
    padding: 8px 15px;
    border-radius: 5px;
    text-decoration: none;
}

.btn-primary {
    background: #ffcc00;
    color: black;
    font-size: 18px;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.btn-primary:hover {
    background: #ffaa00;
}

/* 英雄區塊 */
.hero {
    text-align: center;
    padding: 80px 20px;
    background: linear-gradient(to right, #0056b3, #0099ff);
    color: white;
}

.hero h1 {
    font-size: 36px;
}

.hero p {
    font-size: 18px;
    margin-bottom: 20px;
}



/* 課程區塊標題 */
h2 {
    text-align: center;
    font-size: 26px;
    margin-top: 40px;
    color: #333;
}

/* 熱門課程 & 優惠課程區塊 */
#course-list,
#discount-course-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

/* 課程連結樣式 */
.course-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

/* 課程卡片 */
.course-item {
    background: white;
    padding: 15px;
    border-radius: 10px;
    width: 200px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: 0.3s;
    text-align: center;
    position: relative;
}

.course-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 10px rgba(0, 0, 0, 0.15);
}

/* 圖片容器 - 讓學期標籤相對於圖片定位 */
.course-item .img-wrapper {
    position: relative;
    display: inline-block;
}

/* 學期標籤 - 疊在圖片左上角 */
.semester-tag {
    position: absolute;
    top: 8px;
    left: 8px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    font-size: 11px;
    font-weight: 500;
    padding: 3px 8px;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(102, 126, 234, 0.3);
    z-index: 1;
}

/* 課程圖片 */
.course-img {
    width: 140px;
    height: 140px;
    object-fit: cover;
    border-radius: 8px;
    background: #f0f0f0;
    display: block;
}

/* 課程標題 */
.course-item h3 {
    font-size: 16px;
    margin: 10px 0;
    line-height: 1.3;
    /* 限制字數：最多顯示2行 */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    min-height: 42px;
}

/* 主辦單位名稱 */
.course-org {
    font-size: 14px;
    color: #555;
    margin-bottom: 10px;
}

/* 優惠課程專屬樣式 */
.discount-course {
    border: 2px solid #ffcc00;
    background: #fffbe6;
}

/* 優惠課程標籤 */
.discount-price {
    font-size: 14px;
    font-weight: bold;
    color: #d9534f;
    margin-top: 5px;
    padding: 4px 8px;
    background: #ffdddd;
    border-radius: 5px;
    display: inline-block;
}

/* 響應式設計 - 平板 */
@media (max-width: 768px) {
    .search-bar input {
        width: 80%;
    }

    #course-list,
    #discount-course-list {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
        padding: 0 10px;
    }

    .course-link {
        width: 100%;
    }

    .course-item {
        width: 100%;
        padding: 10px;
    }

    .course-img {
        width: 100%;
        height: 120px;
    }

    .course-item h3 {
        font-size: 13px;
        min-height: 34px;
    }

    .semester-tag {
        font-size: 9px;
        padding: 2px 5px;
    }

    .discount-price {
        font-size: 12px;
        padding: 3px 6px;
    }
}

/* 響應式設計 - 小手機 */
@media (max-width: 480px) {
    #course-list,
    #discount-course-list {
        gap: 8px;
        padding: 0 5px;
    }

    .course-item {
        padding: 8px;
    }

    .course-img {
        height: 100px;
    }

    .course-item h3 {
        font-size: 12px;
        min-height: 32px;
        margin: 6px 0;
    }
}