body {
    margin: 0;
    padding: 0;
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
    background-color: #f0f2f5;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    min-height: 100vh;
    padding: 40px 16px 72px;
    overflow-y: auto;
}

.header {
    text-align: center;
    margin-bottom: 36px;
    width: 100%;
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: #111;
}

.header p {
    color: #666;
    font-size: 1.1rem;
}

.container {
    display: flex;
    gap: 25px;
    max-width: 900px;
    width: 90%;
    align-items: stretch;
}

.card {
    flex: 1;
    background: white;
    border-radius: 20px;
    padding: 40px 20px;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

.icon-wrapper {
    width: 80px;
    height: 80px;
    background-color: #007bff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: white;
}

.card h2 {
    font-size: 1.5rem;
    margin: 15px 0 10px 0;
    color: #333;
}

.card p {
    color: #888;
    font-size: 0.95rem;
    line-height: 1.5;
}

/* 하단 물음표 버튼 */
.help-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #333;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

/* 기존 CSS 유지 및 하단에 추가 */

/* 상단 포트폴리오 라벨 */
.portfolio-label {
    display: inline-block;
    background-color: #007bff;
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}

/* 카드 내 기능 태그 스타일 */
.feature-tags {
    margin-top: 25px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
    padding-top: 20px;
    border-top: 1px solid #f0f0f0;
    width: 100%;
}

.feature-tags span {
    background-color: #f8f9fa;
    color: #666;
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 6px;
    border: 1px solid #eee;
    transition: all 0.2s;
}

/* 호버 시 태그 포인트 컬러 변경 */
.card:hover .feature-tags span {
    border-color: #007bff;
    color: #007bff;
    background-color: #f0f7ff;
}

/* 하단 푸터 안내 */
.portfolio-footer {
    margin-top: 40px;
    text-align: center;
    color: #999;
    font-size: 0.85rem;
    width: 100%;
}

/* 모바일 대응을 위한 미디어 쿼리 (선택사항) */
@media (max-width: 768px) {
    body {
        padding-top: 20px;
        padding-bottom: 56px;
    }

    .header {
        margin-bottom: 24px;
    }

    .header h1 {
        font-size: 2rem;
    }

    .header p {
        font-size: 1rem;
    }

    .container {
        flex-direction: column;
        align-items: center;
        width: 100%;
        gap: 18px;
    }

    .card {
        width: 100%;
        max-width: 400px;
        padding: 28px 18px;
        border-radius: 18px;
    }

    .icon-wrapper {
        width: 72px;
        height: 72px;
        margin-bottom: 14px;
    }

    .card h2 {
        font-size: 1.3rem;
        margin-top: 10px;
    }

    .feature-tags {
        margin-top: 18px;
        padding-top: 16px;
        gap: 8px;
    }

    .portfolio-footer {
        margin-top: 24px;
        font-size: 0.8rem;
        line-height: 1.5;
    }

    .help-btn {
        bottom: 14px;
        right: 14px;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.8rem;
    }

    .card {
        padding: 24px 16px;
    }

    .feature-tags span {
        font-size: 0.72rem;
        padding: 4px 8px;
    }
}