/* 基本重置與字體 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

/* 標頭區域 */
header {
    text-align: center;
    padding: 4rem 2rem;
    background-color: #2c3e50;
    color: white;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

/* 內容區域 */
main {
    max-width: 1000px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #2c3e50;
}

/* 作品網格與卡片設計 */
.project-grid {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    width: 300px;
    overflow: hidden;
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
}

.card-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    background-color: #ddd;
}

.card h3, .card p {
    padding: 1rem 1.5rem 0;
}

.card p {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 1rem;
}

.card-empty {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    color: #999;
}

/* 按鈕樣式 */
.links {
    display: flex;
    gap: 1rem;
    padding: 0 1.5rem 1.5rem;
}

.btn {
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.9rem;
    color: #2c3e50;
    border: 1px solid #2c3e50;
    transition: 0.2s;
    text-align: center;
    flex: 1;
}

.btn:hover {
    background-color: #f5f7fa;
}

.btn.primary {
    background-color: #2c3e50;
    color: white;
}

.btn.primary:hover {
    background-color: #1a252f;
}

/* 頁尾 */
footer {
    text-align: center;
    padding: 2rem;
    background-color: #fff;
    border-top: 1px solid #eaeaea;
    font-size: 0.9rem;
}