/* 1페이지: 메인 소개 + 탭 스타일 - Museum/Gallery Design */

/* 페이지 배경 */
.page-intro {
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

/* 메인 컨테이너 */
.intro-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-2xl) var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-2xl);
    min-height: calc(100vh - 140px);
}

/* 히어로 섹션 */
.hero-section {
    position: relative;
    z-index: 2;
    padding: var(--space-xl) 0;
}

.hero-content {
    max-width: 840px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease-out;
}

/* 히어로 레이아웃 — 좌우 분할 */
.hero-layout {
    display: flex;
    align-items: center;
    gap: var(--space-2xl);
}

/* 프로필 이미지 */
.profile-image {
    width: 160px;
    height: 160px;
    flex-shrink: 0;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--border-color);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.profile-image:hover {
    box-shadow: var(--shadow-medium);
}

.profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
    filter: grayscale(10%);
}

.profile-image:hover img {
    filter: grayscale(0%);
    transform: scale(1.05);
}

/* 히어로 텍스트 */
.hero-text {
    flex: 1;
}

.hero-subtitle {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent-color);
    margin-bottom: var(--space-sm);
    letter-spacing: 3px;
    text-transform: uppercase;
}

.hero-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(2.4rem, 4vw, 3.8rem);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    letter-spacing: -0.5px;
    line-height: 1.1;
}

.hero-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

/* 소셜 링크 */
.hero-social {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    padding: 6px 14px;
    border: 1px solid var(--border-color);
    transition: var(--transition-fast);
}

.social-link:hover {
    color: var(--accent-color);
    border-color: var(--accent-color);
}

.social-link svg {
    transition: var(--transition-fast);
}

.social-link:hover svg {
    transform: translateY(-1px);
}

/* 히어로 통계 — 미니멀 인라인 */
.hero-stats {
    display: flex;
    gap: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-color);
}

.stat-item {
    text-align: left;
}

.stat-number {
    display: block;
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text-light);
    font-weight: 400;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* 탭 섹션 */
.tab-section {
    position: relative;
    z-index: 2;
    margin-top: var(--space-lg);
}

.tab-container {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0;
    padding: var(--space-2xl);
    box-shadow: var(--shadow-subtle);
}

/* 탭 네비게이션 */
.tab-nav {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
    background: transparent;
    border: none;
    color: var(--text-light);
    font-weight: 400;
    font-size: 0.9rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: -17px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    color: var(--text-primary);
    font-weight: 500;
}

.tab-btn.active::after {
    width: 100%;
}

.tab-icon {
    font-size: 1rem;
}

/* 탭 콘텐츠 */
.tab-content {
    min-height: 400px;
    position: relative;
}

.tab-pane {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-pane.active {
    display: block;
}

/* About 탭 */
.about-content h3 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xl);
    text-align: center;
}

.about-content > p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    text-align: center;
    margin-bottom: var(--space-2xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
    margin-top: var(--space-2xl);
}

.highlight-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    padding: var(--space-xl);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0;
    transition: var(--transition);
}

.highlight-item:hover {
    background: var(--bg-primary);
    box-shadow: var(--shadow-light);
    transform: translateY(-4px);
}

.highlight-icon {
    font-size: 2rem;
    line-height: 1;
    color: var(--accent-color);
}

.highlight-content h4 {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.highlight-content p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* Education / Certifications 탭 */
.education-content h3,
.certifications-content h3 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2xl);
    text-align: center;
}

.education-content .career-education-grid,
.certifications-content .certifications-grid {
    margin-top: var(--space-lg);
}

.tab-certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
    margin-top: var(--space-lg);
}

.tab-certification-card {
    background: var(--bg-primary);
    border: 1px solid #d0d0d0;
    border-left: 4px solid var(--accent-color);
    border-radius: 6px;
    padding: var(--space-xl);
    min-height: 180px;
    transition: var(--transition);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.tab-certification-card:hover {
    background: var(--bg-primary);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
    border-color: var(--accent-color);
    transform: translateY(-3px);
}

.tab-certification-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.tab-certification-heading {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: nowrap;
    margin-bottom: var(--space-xs);
}

.tab-certification-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    line-height: 1;
    flex: 0 0 auto;
}

.tab-certification-name {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.05rem;
    font-weight: 600;
    line-height: 1.4;
    flex: 1 1 auto;
}

.tab-certification-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    padding-top: var(--space-sm);
    border-top: 1px solid var(--border-color);
}

.tab-certification-org {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

.tab-certification-date {
    margin: 0;
    color: var(--accent-color);
    font-size: 0.92rem;
}

.tab-certification-description {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.7;
}

.skill-category {
    margin-bottom: var(--space-2xl);
}

.skill-category h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--border-color);
    letter-spacing: 0.5px;
}

.skill-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.skill-item {
    background: var(--bg-secondary);
    padding: var(--space-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.skill-item:hover {
    background: var(--bg-primary);
    box-shadow: var(--shadow-subtle);
}

.skill-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.skill-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: grayscale(20%);
    transition: var(--transition);
}

.skill-item:hover .skill-icon img {
    filter: grayscale(0%);
}

.skill-name {
    font-weight: 500;
    color: var(--text-primary);
    min-width: 100px;
    font-size: 0.95rem;
}

.skill-level {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.skill-bar {
    flex: 1;
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--accent-color);
    border-radius: 2px;
    transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
    animation: progressLoad 1.5s ease forwards;
}

.skill-percentage {
    font-size: 0.85rem;
    color: var(--text-light);
    min-width: 40px;
    text-align: right;
}

@keyframes progressLoad {
    from { width: 0; }
}

/* Contact 탭 */
.contact-content h3 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
    text-align: center;
}

.contact-content > p {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
    font-size: 1.05rem;
    line-height: 1.7;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition);
}

.contact-item:hover {
    background: var(--bg-primary);
    box-shadow: var(--shadow-subtle);
    transform: translateY(-2px);
}

.contact-icon {
    font-size: 1.5rem;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--accent-color);
}

.contact-info h4 {
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
}

.contact-info span {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* 연락 폼 */
.contact-form {
    background: var(--bg-secondary);
    padding: var(--space-2xl);
    border: 1px solid var(--border-color);
    margin-top: var(--space-xl);
}

.contact-form h4 {
    font-family: 'Playfair Display', Georgia, serif;
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--space-xl);
    text-align: center;
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-md);
    border: 1px solid var(--border-color);
    border-radius: 0;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--text-primary);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.submit-btn {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    background: var(--text-primary);
    border: 1px solid var(--text-primary);
    color: var(--white);
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.submit-btn:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
}


/* 반응형 디자인 */
@media (max-width: 768px) {
    .intro-container {
        gap: var(--space-xl);
        padding: var(--space-lg) var(--space-md);
    }


    .hero-layout {
        flex-direction: column;
        text-align: center;
    }

    .profile-image {
        width: 120px;
        height: 120px;
    }

    .hero-social {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
        gap: var(--space-lg);
    }

    .stat-item {
        text-align: center;
    }

    .tab-container {
        padding: var(--space-lg);
    }

    .tab-nav {
        flex-direction: column;
        gap: var(--space-sm);
        align-items: center;
    }

    .tab-btn::after {
        bottom: -9px;
    }

    .about-highlights {
        grid-template-columns: 1fr;
    }

    .skill-grid {
        grid-template-columns: 1fr;
    }

    .tab-certifications-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .profile-image {
        width: 100px;
        height: 100px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .stat-number {
        font-size: 1.6rem;
    }

    .hero-stats {
        gap: var(--space-md);
    }

    .tab-container {
        padding: var(--space-md);
    }

    .contact-form {
        padding: var(--space-lg);
    }
}