/* 1. 기본 레이아웃 */
.main-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* 4. 메인 콘텐츠 */
.main-content {
    padding-top: 120px;
    flex: 1;
}

/* 5. 검색 섹션 */
.search-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0 var(--spacing-xl);
    margin: 10rem 0;
}

.search-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2.5rem;
    text-align: center;
    letter-spacing: 0.1em;
}

#mainSearchForm {
    width: 100%;
    max-width: 600px;
}

#mainSearchForm .input-group {
    height: 50px;
}

#mainSearchForm .form-control {
    height: 100%;
    font-size: 1rem;
    padding: 0 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-search {
    height: 100%;
    padding: 0 2rem;
    background: var(--color-text);
    color: var(--color-bg);
    border: none;
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    transition: all var(--transition-fast);
}

.btn-search:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-1px);
}

/* 6. 이미지 섹션 */
.featured-section {
    padding: 0 var(--spacing-lg);
    margin-top: 2rem;
}

.featured-block {
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.block-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.block-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
}

.view-all {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: color var(--transition-fast);
}

.view-all:hover {
    color: var(--color-text);
}

.image-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.image-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    height: 160px;
}

.image-link {
    display: block;
    width: 100%;
    height: 100%;
}

.image-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.image-item:hover img {
    transform: scale(1.05);
}

/* 이미지 오버레이 스타일 수정 */
.image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md);
    background: linear-gradient(to top, 
        rgba(0, 0, 0, 0.9) 0%,
        rgba(0, 0, 0, 0.7) 50%,
        transparent 100%);
    opacity: 0;
    transform: translateY(10px);
    transition: all var(--transition-normal) var(--ease-out);
}

.overlay-content {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.categories {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
}

.category-tag {
    font-size: 0.75rem;
    padding: 0.2rem 0.5rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    color: var(--color-text);
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
}

.tag {
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.7);
}

.image-item:hover .image-overlay {
    opacity: 1;
    transform: translateY(0);
}

.no-images {
    height: 160px;
    text-align: center;
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.no-images i {
    font-size: 1.5rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.no-images p {
    color: var(--color-text-secondary);
    margin: 0;
    font-size: 0.9rem;
    font-weight: 300;
}

/* 토스트 스타일 */
.toast-container {
    z-index: 1050;
}

.toast {
    min-width: 200px;
    backdrop-filter: blur(10px);
}

.toast .toast-body {
    font-size: 0.9rem;
}

.toast .btn-close-white {
    filter: brightness(0) invert(1);
}

/* 7. 반응형 스타일 */
@media (max-width: 768px) {
    .header {
        padding: 1rem;
    }

    .search-section {
        padding: var(--spacing-md);
        margin: 5rem 0;
    }

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

    .featured-section {
        padding: 0 var(--spacing-md);
    }

    .featured-block {
        padding: var(--spacing-md);
    }

    .image-grid {
        grid-template-columns: repeat(1, 1fr);
    }
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.loading-overlay .spinner-border {
    width: 3rem;
    height: 3rem;
}

/* 로그인 알림 모달 스타일 */
.login-alert {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.login-alert.show {
    opacity: 1;
}

.login-alert-content {
    background: rgba(30, 30, 30, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 2rem;
    width: 90%;
    max-width: 400px;
    text-align: center;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.login-alert.show .login-alert-content {
    transform: translateY(0);
}

.login-alert i {
    font-size: 2.5rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.login-alert h3 {
    color: var(--color-text);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.login-alert p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.login-alert-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.login-alert-buttons .btn-cancel {
    padding: 0.6rem 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text-secondary);
    border-radius: 6px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.login-alert-buttons .btn-login {
    padding: 0.6rem 1.5rem;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.2s ease;
}

.login-alert-buttons .btn-cancel:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text);
}

.login-alert-buttons .btn-login:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
}