/* TinySecu 커스텀 색상 변수 */

/* CSS 변수로 색상 정의 */
:root {
    --color-primary: #6366f1;    /* 정보유출 */
    --color-secondary: #3b82f6;  /* 랜섬웨어 */
    --color-accent: #ef4444;     /* 해킹 */
    --color-warning: #f59e0b;    /* 시스템장애 */
    --color-light: #f8fafc;      
    --color-dark: #0f172a;       /* 공급망공격 */
    --color-success: #10b981;    /* 디도스 */
    --color-logo: #1e293b;       /* 로고 색상 */
}

/* 커스텀 색상 클래스 (Tailwind와 함께 사용) */
.text-primary { color: var(--color-primary) !important; }
.text-secondary { color: var(--color-secondary) !important; }
.text-accent { color: var(--color-accent) !important; }
.text-warning { color: var(--color-warning) !important; }
.text-light { color: var(--color-light) !important; }
.text-dark { color: var(--color-dark) !important; }
.text-success { color: var(--color-success) !important; }
.text-logo { color: var(--color-logo) !important; }

.bg-primary { background-color: var(--color-primary) !important; }
.bg-secondary { background-color: var(--color-secondary) !important; }
.bg-accent { background-color: var(--color-accent) !important; }
.bg-warning { background-color: var(--color-warning) !important; }
.bg-light { background-color: var(--color-light) !important; }
.bg-dark { background-color: var(--color-dark) !important; }
.bg-success { background-color: var(--color-success) !important; }
.bg-logo { background-color: var(--color-logo) !important; }

/* 호버 효과 */
.hover\:text-secondary:hover { color: var(--color-secondary) !important; }
.hover\:bg-secondary:hover { background-color: var(--color-secondary) !important; }
.hover\:bg-light:hover { background-color: var(--color-light) !important; }

/* 포커스 효과 */
.focus\:ring-secondary:focus { --tw-ring-color: var(--color-secondary) !important; }

/* 폰트 설정 */
body {
    font-family: 'Noto Sans KR', sans-serif;
}

/* 카드 세로 정렬을 위한 클래스들 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    width: 100%;
}

.card {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    border: 1px solid #e5e7eb;
    transition: all 0.2s;
}

.card:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    transform: translateY(-2px);
}

.card-content {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 1.5rem;
}

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

.card-title-section {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
}

.card-icon {
    width: 2.25rem;
    height: 2.25rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.125rem;
    flex-shrink: 0;
}

.card-title-info {
    flex: 1;
    min-width: 0;
}

.card-title {
    font-weight: 600;
    color: #1f2937;
    font-size: 1.125rem;
    margin: 0;
    line-height: 1.4;
}

.card-category {
    font-size: 0.75rem;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.25rem;
}

.card-bookmark {
    background-color: var(--color-light);
    color: #6b7280;
    padding: 0.5rem;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
}

.card-bookmark:hover {
    background-color: var(--color-secondary);
    color: white;
}

.card-description {
    color: #6b7280;
    font-size: 0.875rem;
    margin-bottom: 1rem;
    line-height: 1.5;
    /* 2줄 제한을 위한 스타일 */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    min-height: 2.625rem; /* 2줄 높이 고정 */
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.card-tag {
    background-color: var(--color-light);
    color: var(--color-dark);
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 9999px;
    border: 1px solid #e5e7eb;
    white-space: nowrap;
}

.card-footer {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-button {
    background-color: var(--color-secondary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: background-color 0.2s;
    border: none;
    cursor: pointer;
}

.card-button:hover {
    background-color: #2563eb;
}

.card-domain {
    color: #9ca3af;
    font-size: 0.75rem;
}

/* 반응형 그리드 */
@media (min-width: 640px) {
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .card-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .card-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1280px) {
    .card-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1536px) {
    .card-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* 로딩 스피너 스타일 */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--color-secondary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* 네비게이션 그룹 및 서브 메뉴 */
.nav-group {
    position: relative;
}

.submenu {
    display: none;
}

.nav-group:hover .submenu {
    display: block;
}

/* 서브 네비게이션 링크 활성화 */
.sub-nav-link.active {
    background-color: #f3f4f6;
    color: #3498db;
}

/* 헤더 고정 스타일 */
header {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    z-index: 9999 !important;
    background-color: white !important;
    backdrop-filter: blur(8px) !important;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06) !important;
    border-bottom: 1px solid #e5e7eb !important;
    width: 100% !important;
    height: auto !important;
}

/* 헤더 고정으로 인한 body 상단 여백 */
body {
    padding-top: 120px !important; /* 헤더 높이 + 여유 공간 */
}

/* 네비게이션 링크 스타일 강화 */
.nav-link {
    position: relative !important;
    transition: all 0.3s ease !important;
}

.nav-link:hover {
    color: var(--color-secondary) !important;
    background-color: rgba(59, 130, 246, 0.05) !important;
}

.nav-link.active {
    color: var(--color-secondary) !important;
    border-bottom: 2px solid var(--color-secondary) !important;
    background-color: rgba(59, 130, 246, 0.1) !important;
}

/* 모바일 메뉴 스타일 */
#mobile-menu {
    background-color: white !important;
    border-top: 1px solid #e5e7eb !important;
}

#mobile-menu .nav-link {
    border-bottom: 1px solid #f3f4f6 !important;
}

#mobile-menu .nav-link:last-child {
    border-bottom: none !important;
}

/* 컨테이너 스타일 강화 */
.container {
    max-width: 1280px !important;
    margin: 0 auto !important;
    padding-left: 1rem !important;
    padding-right: 1rem !important;
}

/* 메인 콘텐츠 영역 */
main {
    min-height: calc(100vh - 265px) !important;
    padding-top: 2rem !important;
    padding-bottom: 2rem !important;
}

/* 카드 그리드 강화 */
.card-grid {
    display: grid !important;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)) !important;
    gap: 1.5rem !important;
    width: 100% !important;
}

/* 반응형 그리드 강화 */
@media (min-width: 640px) {
    .card-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

@media (min-width: 768px) {
    .card-grid {
        grid-template-columns: repeat(3, 1fr) !important;
    }
}

@media (min-width: 1024px) {
    .card-grid {
        grid-template-columns: repeat(3, 1fr) !important;
    }
}

@media (min-width: 1280px) {
    .card-grid {
        grid-template-columns: repeat(4, 1fr) !important;
    }
}

@media (min-width: 1536px) {
    .card-grid {
        grid-template-columns: repeat(4, 1fr) !important;
    }
}