/* ===================================
   ANNOUNCEMENT.HTML SPECIFIC STYLES
   =================================== */

/* 신뢰감 있는 공고 페이지 전용 스타일 - 무채색 시스템 */
:root {
    --announcement-primary: #2c3e50;
    --announcement-secondary: #34495e;
    --announcement-accent: #6c757d;
    --announcement-warning: #e74c3c;
    --announcement-background: #f8f9fa;
    --announcement-card-bg: #ffffff;
    --announcement-border: #dee2e6;
    --announcement-text: #2c3e50;
    --announcement-muted: #6c757d;
}

body {
    background-color: var(--announcement-background);
    color: var(--announcement-text);
}

/* Hero Section - 네비바 충돌 방지 및 반응형 향상 */
.announcement-hero {
    background: linear-gradient(135deg, var(--announcement-primary) 0%, var(--announcement-secondary) 100%);
    color: white;
    /* 네비바 높이 + 안전 여백 고려 */
    padding: 110px 0 60px;
    min-height: 200px;
    position: relative;
    overflow: hidden;
    /* 글래스모피즘 효과를 위한 추가 */
    backdrop-filter: blur(10px);
    /* 트렌디한 그라디언트 개선 */
    background: linear-gradient(135deg, 
        var(--announcement-primary) 0%, 
        #34495e 25%,
        #2980b9 75%,
        var(--announcement-secondary) 100%);
    /* 동적 배경 애니메이션 */
    background-size: 400% 400%;
    animation: gradientShift 8s ease infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.announcement-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;charset=utf-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23ffffff" stroke-width="0.5" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    /* 폴백 배경 */
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(255,255,255,0.1) 1px, transparent 1px),
        radial-gradient(circle at 75% 75%, rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 20px 20px;
    /* 로딩 시 기본 배경 */
    background-color: rgba(255,255,255,0.05);
    /* 즉시 표시를 위한 애니메이션 */
    opacity: 0;
    animation: fadeInBackground 0.8s ease-in-out forwards;
}

@keyframes fadeInBackground {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

.announcement-hero .container {
    position: relative;
    z-index: 2;
}

.announcement-hero h1 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease-out 0.3s forwards;
}

.announcement-hero .lead {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 0;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s ease-out 0.6s forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Filter Section */
.announcement-filters {
    background: white;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--announcement-border);
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.filter-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.filter-tab {
    background: transparent;
    border: 2px solid var(--announcement-border);
    color: var(--announcement-text);
    padding: 0.5rem 1.2rem;
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
    font-size: 0.9rem;
}

.filter-tab:hover {
    border-color: var(--announcement-accent);
    color: var(--announcement-accent);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(108, 117, 125, 0.15);
}

.filter-tab.active {
    background: var(--announcement-accent);
    border-color: var(--announcement-accent);
    color: white;
    box-shadow: 0 3px 10px rgba(108, 117, 125, 0.25);
}

.search-container {
    position: relative;
    max-width: 400px;
}

.search-input {
    border: 2px solid var(--announcement-border);
    border-radius: 25px;
    padding: 0.7rem 1rem 0.7rem 2.5rem;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    width: 100%;
}

.search-input:focus {
    border-color: var(--announcement-accent);
    box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
    outline: none;
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--announcement-muted);
}

/* Announcement Cards */
.announcements-container {
    padding: 2rem 0;
}

.announcement-card {
    background: var(--announcement-card-bg);
    border: 1px solid var(--announcement-border);
    border-radius: 12px;
    padding: 1.8rem;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.announcement-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--announcement-border);
    transition: all 0.3s ease;
}

.announcement-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    border-color: var(--announcement-accent);
}

.announcement-card:hover::before {
    background: var(--announcement-accent);
    width: 6px;
}

.announcement-card.important::before {
    background: var(--announcement-accent);
}

.announcement-card.important:hover::before {
    background: var(--announcement-accent);
}

.announcement-header {
    display: flex;
    justify-content: between;
    align-items: flex-start;
    margin-bottom: 1rem;
    gap: 1rem;
}

.announcement-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.8rem;
}

.announcement-type {
    background: var(--announcement-accent);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

.announcement-type.법정공고 {
    background: var(--announcement-accent);
}

.announcement-type.일반공고 {
    background: var(--announcement-accent);
}

.announcement-type.채용공고 {
    background: #27ae60;
}

.announcement-type.투자공고 {
    background: #8e44ad;
}

.announcement-type.포트폴리오 {
    background: #f39c12;
}

.portfolio-link-info {
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--announcement-border);
}

.portfolio-link-info .btn {
    font-size: 0.8rem;
    padding: 0.4rem 0.8rem;
}

.announcement-date {
    color: var(--announcement-muted);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.announcement-title {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--announcement-text);
    margin-bottom: 0.8rem;
    line-height: 1.4;
}

.announcement-preview {
    color: var(--announcement-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.announcement-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.read-more-btn {
    background: transparent;
    border: 1px solid var(--announcement-accent);
    color: var(--announcement-accent);
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
}

.read-more-btn:hover {
    background: var(--announcement-accent);
    color: white;
    transform: translateY(-1px);
}

.important-badge {
    background: var(--announcement-warning);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

/* Pagination */
.announcement-pagination {
    display: flex;
    justify-content: center;
    margin-top: 3rem;
}

.pagination .page-link {
    border: 1px solid var(--announcement-border);
    color: var(--announcement-text);
    padding: 0.6rem 1rem;
    margin: 0 0.2rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.pagination .page-link:hover {
    background: var(--announcement-accent);
    border-color: var(--announcement-accent);
    color: white;
}

.pagination .page-item.active .page-link {
    background: var(--announcement-accent);
    border-color: var(--announcement-accent);
    color: white;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--announcement-muted);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.empty-state p {
    font-size: 1rem;
}

/* Modal Styles */
.modal-content {
    border: none;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.modal-header {
    background: var(--announcement-primary);
    color: white;
    border-radius: 12px 12px 0 0;
    padding: 1.5rem 2rem;
}

.modal-title {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 1.3rem;
}

.modal-body {
    padding: 2rem;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--announcement-text);
}

.modal-footer {
    border-top: 1px solid var(--announcement-border);
    padding: 1.5rem 2rem;
}

/* Loading Animation */
.loading-spinner {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 3rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--announcement-border);
    border-top: 3px solid var(--announcement-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Accessibility Enhancements */
.filter-tab:focus,
.search-input:focus,
.announcement-card:focus,
.read-more-btn:focus {
    outline: 2px solid var(--announcement-accent);
    outline-offset: 2px;
}

/* Responsive Design - 네비바 충돌 방지 강화 */
@media (max-width: 768px) {
    .announcement-hero {
        /* 모바일 네비바 높이 + 안전 여백 */
        padding: 90px 0 50px;
        min-height: 180px;
    }

    .announcement-hero h1 {
        font-size: 2rem;
    }

    .announcement-hero .lead {
        font-size: 1.1rem;
    }

    .announcement-filters {
        padding: 1rem 0;
    }

    .announcements-container {
        padding: 1.5rem 0;
    }

    .filter-tabs {
        justify-content: center;
    }

    .filter-tab {
        padding: 0.4rem 1rem;
        font-size: 0.85rem;
    }

    .announcement-card {
        padding: 1.3rem;
        margin-bottom: 1rem;
    }

    .announcement-title {
        font-size: 1.1rem;
    }

    .announcement-header {
        flex-direction: column;
        gap: 0.8rem;
    }

    .announcement-meta {
        flex-wrap: wrap;
        gap: 0.8rem;
    }

    .announcement-actions {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }

    .read-more-btn {
        width: 100%;
        text-align: center;
    }
}

/* Minimal External Link Styling - Only Icon Indicator */
.external-link-indicator {
    color: var(--announcement-muted);
    font-size: 0.75rem;
    margin-left: 0.3rem;
    opacity: 0.6;
    transition: opacity 0.3s ease;
}

.announcement-card:hover .external-link-indicator {
    opacity: 1;
}

/* 보도자료 스타일 - 일반공지와 동일하게 */
.announcement-type.보도자료 {
    background: var(--announcement-accent);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

/* 외부 링크 버튼 스타일 - 일반 버튼과 동일하게 */
.external-link-btn {
    background: transparent;
    border: 1px solid var(--announcement-accent);
    color: var(--announcement-accent);
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
}

.external-link-btn:hover {
    background: var(--announcement-accent);
    color: white;
    transform: translateY(-1px);
}

/* 외부 링크 카드 스타일 제거 - 일반 카드와 동일하게 */
.external-link-card {
    /* 특별한 스타일 제거 */
}

/* 외부 소스 정보 제거 */
.external-source-info {
    display: none;
}

/* 반응형 스타일 */
@media (max-width: 768px) {
    .external-link-indicator {
        font-size: 0.7rem;
    }
}

/* 초소형 모바일 디바이스 반응형 - 네비바 충돌 방지 */
@media (max-width: 576px) {
    .announcement-hero {
        /* 초소형 디바이스 네비바 높이 + 안전 여백 */
        padding: 85px 0 45px;
        min-height: 160px;
    }
    
    .announcement-hero h1 {
        font-size: 1.8rem;
    }
    
    .announcement-hero .lead {
        font-size: 1rem;
    }
}

/* Print Styles */
@media print {
    .announcement-hero,
    .announcement-filters,
    .announcement-pagination,
    .modal,
    nav {
        display: none !important;
    }

    .announcement-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
        margin-bottom: 1rem;
    }

    .external-link-card::after {
        content: ' [외부 링크: ' attr(data-url) ']';
        font-size: 0.8rem;
        color: #666;
    }
}