/*
* 파일명: frontend.css
* 위치: /wp-content/plugins/wedding-fair-schedule/assets/css/frontend.css
* 기능: 웨딩박람회 프론트엔드 전용 스타일시트 - 반응형 디자인, 애니메이션 효과
* 작성일: 2025-08-10
* 
* 저작권: Copyright (C) 2025 호텔천사. All rights reserved.
* 개발자: Developed by URL.KR (수정 불가)
* 라이선스: 자유롭게 수정 가능하나 재배포 및 상업적 재배포 불가
*/

/* ===================================
* CSS 변수 정의
* ===================================
*/

:root {
    --wfs-primary-color: #667eea;
    --wfs-secondary-color: #764ba2;
    --wfs-success-color: #198754;
    --wfs-info-color: #0dcaf0;
    --wfs-warning-color: #ffc107;
    --wfs-danger-color: #dc3545;
    --wfs-light-color: #f8f9fa;
    --wfs-dark-color: #212529;
    --wfs-gray-color: #6c757d;
    --wfs-border-color: #e9ecef;
    --wfs-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    --wfs-shadow-hover: 0 4px 8px rgba(0, 0, 0, 0.2);
    --wfs-transition: all 0.3s ease;
}

/* ===================================
* 플러그인 전용 네임스페이스
* ===================================
*/

.wfs-container {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--wfs-dark-color);
    line-height: 1.6;
}

/* ===================================
* 컨테이너 확장
* ===================================
*/

body.page-template-page-wedding-fair .container,
body.page-template-page-wedding-fair .container-fluid {
    max-width: 1400px !important;
    width: 100% !important;
}

/* ===================================
* 헤더 스타일
* ===================================
*/

.wfs-site-header {
    background: linear-gradient(135deg, var(--wfs-primary-color) 0%, var(--wfs-secondary-color) 100%);
    color: white;
    padding: 2rem 0;
    margin-bottom: 2rem;
    border-radius: 0.5rem;
    animation: wfsFadeIn 0.6s ease-out;
}

.wfs-site-header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0;
    color: white;
}

/* ===================================
* 카드 컴포넌트
* ===================================
*/

.wfs-card {
    border: 1px solid var(--wfs-border-color);
    border-radius: 0.5rem;
    background-color: white;
    box-shadow: var(--wfs-shadow);
    margin-bottom: 1.5rem;
    overflow: hidden;
    animation: wfsFadeInUp 0.6s ease-out;
    transition: var(--wfs-transition);
}

.wfs-card:hover {
    box-shadow: var(--wfs-shadow-hover);
}

.wfs-card-header {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-bottom: 1px solid var(--wfs-border-color);
    padding: 1rem 1.25rem;
    font-weight: 600;
}

.wfs-card-body {
    padding: 1.25rem;
}

/* ===================================
* 지역 네비게이션
* ===================================
*/

.wfs-region-nav .wfs-card-header {
    background: linear-gradient(135deg, var(--wfs-primary-color) 0%, var(--wfs-secondary-color) 100%);
    border: none;
}

.wfs-region-nav .wfs-card-header h5 {
    color: white;
    margin: 0;
}

.wfs-region-nav .list-group-item {
    transition: var(--wfs-transition);
    cursor: pointer;
}

.wfs-region-nav .list-group-item:hover {
    background-color: var(--wfs-light-color);
    transform: translateX(5px);
}

.wfs-region-nav .list-group-item.active {
    background: linear-gradient(135deg, var(--wfs-primary-color) 0%, var(--wfs-secondary-color) 100%);
    color: white;
    border-color: transparent;
}

/* 스티키 사이드바 */
@media (min-width: 992px) {
    .wfs-sidebar-sticky {
        position: sticky;
        top: 5rem;
        z-index: 100;
    }
    
    .admin-bar .wfs-sidebar-sticky {
        top: 7rem;
    }
}

/* ===================================
* 박람회 리스트
* ===================================
*/

.wfs-fair-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.wfs-fair-item {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--wfs-border-color);
    transition: var(--wfs-transition);
    position: relative;
}

.wfs-fair-item:last-child {
    border-bottom: none;
}

.wfs-fair-item:hover {
    background-color: rgba(102, 126, 234, 0.05);
}

/* 이미지 스타일 */
.wfs-fair-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0.375rem;
    box-shadow: var(--wfs-shadow);
    transition: var(--wfs-transition);
}

.wfs-fair-image:hover {
    transform: scale(1.02);
}

.wfs-image-container {
    overflow: hidden;
    border-radius: 0.375rem;
}

/* 콘텐츠 스타일 */
.wfs-fair-item h4 {
    color: var(--wfs-dark-color);
    font-weight: 600;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.wfs-fair-date {
    color: var(--wfs-primary-color);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.wfs-fair-date i {
    margin-right: 0.25rem;
}

.wfs-fair-location {
    color: var(--wfs-gray-color);
    margin-bottom: 0.75rem;
}

.wfs-fair-location i {
    margin-right: 0.25rem;
}

.wfs-fair-description {
    color: #495057;
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 1rem;
}

/* ===================================
* 버튼 스타일
* ===================================
*/

.wfs-btn-apply {
    display: inline-block;
    background: linear-gradient(135deg, var(--wfs-primary-color) 0%, var(--wfs-secondary-color) 100%);
    color: white !important;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    text-decoration: none !important;
    font-weight: 500;
    font-size: 0.875rem;
    transition: var(--wfs-transition);
    box-shadow: var(--wfs-shadow);
    border: none;
    position: relative;
    overflow: hidden;
}

.wfs-btn-apply:before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.wfs-btn-apply:hover {
    transform: translateY(-2px);
    box-shadow: var(--wfs-shadow-hover);
    background: linear-gradient(135deg, var(--wfs-secondary-color) 0%, var(--wfs-primary-color) 100%);
}

.wfs-btn-apply:hover:before {
    width: 300px;
    height: 300px;
}

.wfs-btn-apply i {
    margin-left: 0.5rem;
    font-size: 0.875rem;
}

/* ===================================
* 배지 스타일
* ===================================
*/

.wfs-badge {
    padding: 0.35em 0.65em;
    font-size: 0.75em;
    font-weight: 500;
    border-radius: 0.375rem;
    display: inline-block;
}

.wfs-badge.wfs-bg-info {
    background-color: var(--wfs-info-color);
    color: #000;
}

.wfs-badge.wfs-bg-primary {
    background-color: var(--wfs-primary-color);
    color: white;
}

/* ===================================
* 타임라인 헤더
* ===================================
*/

.wfs-timeline-header {
    background: linear-gradient(135deg, var(--wfs-primary-color) 0%, var(--wfs-secondary-color) 100%);
    color: white;
    padding: 1.5rem;
    border-radius: 0.5rem;
    margin-bottom: 2rem;
    box-shadow: var(--wfs-shadow);
    animation: wfsFadeIn 0.6s ease-out;
}

.wfs-timeline-header h2 {
    color: white;
    font-weight: 600;
    margin: 0;
}

.wfs-timeline-header i {
    color: white;
}

/* ===================================
* 검색 결과
* ===================================
*/

.wfs-no-results {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--wfs-gray-color);
}

.wfs-no-results p {
    font-size: 1.1rem;
    margin: 0;
}

.wfs-search-highlight {
    background-color: #fff3cd;
    padding: 0.1em 0.2em;
    border-radius: 0.2em;
    font-weight: 500;
}

/* ===================================
* 로딩 스피너
* ===================================
*/

.wfs-spinner {
    display: inline-block;
    width: 2rem;
    height: 2rem;
    vertical-align: text-bottom;
    border: 0.25em solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: wfsSpinner 0.75s linear infinite;
}

@keyframes wfsSpinner {
    to { transform: rotate(360deg); }
}

/* ===================================
* 애니메이션
* ===================================
*/

@keyframes wfsFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes wfsFadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes wfsSlideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes wfsSlideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ===================================
* 반응형 디자인
* ===================================
*/

/* 태블릿 */
@media (max-width: 991px) {
    .wfs-site-header h1 {
        font-size: 1.5rem;
    }
    
    .wfs-fair-item {
        padding: 1rem 0;
    }
    
    .wfs-sidebar-sticky {
        position: relative;
        top: 0;
    }
}

/* 모바일 */
@media (max-width: 767px) {
    .wfs-site-header {
        padding: 1.5rem 0;
        margin-bottom: 1rem;
    }
    
    .wfs-site-header h1 {
        font-size: 1.25rem;
    }
    
    .wfs-timeline-header {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    .wfs-timeline-header h2 {
        font-size: 1.1rem;
    }
    
    .wfs-card {
        border-radius: 0.375rem;
        margin-bottom: 1rem;
    }
    
    .wfs-card-header {
        padding: 0.75rem 1rem;
    }
    
    .wfs-card-body {
        padding: 1rem;
    }
    
    .wfs-fair-item {
        padding: 1rem 0;
    }
    
    .wfs-fair-item h4 {
        font-size: 1.1rem;
        margin-bottom: 0.5rem;
    }
    
    .wfs-fair-date,
    .wfs-fair-location {
        font-size: 0.9rem;
    }
    
    .wfs-fair-description {
        font-size: 0.85rem;
    }
    
    .wfs-btn-apply {
        width: 100%;
        text-align: center;
        padding: 0.75rem 1.5rem;
    }
    
    .wfs-scroll-to-top {
        width: 45px;
        height: 45px;
        bottom: 1rem;
        right: 1rem;
    }
    
    /* 모바일 이미지 정사각형 */
    .wfs-mobile-image-wrapper {
        width: 100%;
        position: relative;
        padding-bottom: 100%;
        overflow: hidden;
        border-radius: 0.375rem;
        margin-bottom: 1rem;
    }
    
    .wfs-mobile-image-wrapper .wfs-fair-image {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
}

/* 작은 모바일 */
@media (max-width: 576px) {
    .wfs-site-header h1 {
        font-size: 1.125rem;
    }
    
    .wfs-timeline-header h2 {
        font-size: 1rem;
    }
    
    .wfs-fair-item h4 {
        font-size: 1rem;
    }
}

/* ===================================
* 인쇄 스타일
* ===================================
*/

@media print {
    .wfs-site-header,
    .wfs-region-nav,
    .wfs-scroll-to-top,
    .wfs-btn-apply,
    .wfs-mobile-region-nav {
        display: none !important;
    }
    
    .wfs-fair-item {
        break-inside: avoid;
        page-break-inside: avoid;
    }
    
    .wfs-card {
        border: 1px solid #ddd;
        box-shadow: none;
    }
}

/* ===================================
* 접근성 개선
* ===================================
*/

.wfs-container *:focus {
    outline: 2px solid var(--wfs-primary-color);
    outline-offset: 2px;
}

.wfs-btn-apply:focus {
    box-shadow: 0 0 0 0.25rem rgba(102, 126, 234, 0.25);
}

.wfs-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ===================================
* 다크 모드 지원 (선택사항)
* ===================================
*/

@media (prefers-color-scheme: dark) {
    .wfs-card {
        background-color: #1a1a1a;
        border-color: #333;
    }
    
    .wfs-card-header {
        background: linear-gradient(135deg, #2a2a2a 0%, #3a3a3a 100%);
        border-color: #333;
    }
    
    .wfs-card-body {
        color: #e0e0e0;
    }
    
    .wfs-fair-item {
        border-color: #333;
    }
    
    .wfs-fair-item h4 {
        color: #e0e0e0;
    }
    
    .wfs-fair-description {
        color: #b0b0b0;
    }
}