/* 전역 리셋 */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* 앱 컨테이너 */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* 데스크탑 사이드바 */
.desktop-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    background: #ffffff;
    border-right: 1px solid #f1f5f9;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.04);
    z-index: 1000;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    /* 스크롤바 스타일링 */
    scrollbar-width: none;
    /* Firefox */
    -ms-overflow-style: none;
    /* IE and Edge */
}

/* 웹킷 기반 브라우저 (Chrome, Safari, Edge) 스크롤바 숨기기 */
.desktop-sidebar::-webkit-scrollbar {
    display: none;
}

@media (min-width: 992px) {
    .desktop-sidebar {
        width: 240px;
    }
}

/* 사이드바 헤더 */
.sidebar-header {
    padding: 1.5rem 1rem 1rem;
    border-bottom: 1px solid #f1f5f9;
    background: #ffffff;
    flex-shrink: 0;
}

.sidebar-brand {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sidebar-brand:hover {
    text-decoration: none;
}

.brand-text {
    font-size: 1.125rem;
    font-weight: 600;
    color: #0f172a;
    letter-spacing: -0.025em;
}

.brand-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    flex-shrink: 0;
    object-fit: contain;
}

/* 사이드바 네비게이션 */
.sidebar-nav {
    flex: 1;
    padding: 0.5rem 0;
    overflow-y: auto;
    /* 스크롤바 스타일링 */
    scrollbar-width: none;
    /* Firefox */
    -ms-overflow-style: none;
    /* IE and Edge */
}

/* 웹킷 기반 브라우저 (Chrome, Safari, Edge) 스크롤바 숨기기 */
.sidebar-nav::-webkit-scrollbar {
    display: none;
}

.nav-section {
    margin-bottom: 0.5rem;
}

.nav-section:last-child {
    margin-bottom: 0;
}

/* Collapse 섹션 컨테이너 */
.collapse-section {
    margin: 1rem 0;
    border-top: 1px solid #e2e8f0;
    border-bottom: 1px solid #e2e8f0;
    padding: 0.75rem 0;
}

/* 섹션 헤더 */
.section-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    margin: 0 0.5rem;
    color: #64748b;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.25rem;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.15s ease;
    user-select: none;
}

.section-header:hover {
    background-color: #f8fafc;
    color: #475569;
}

.section-toggle {
    margin-left: auto;
    font-size: 0.75rem;
    opacity: 0.6;
    transition: all 0.2s ease;
    transform-origin: center;
}

.section-header:hover .section-toggle {
    opacity: 0.8;
    transform: scale(1.1);
}

/* 네비게이션 리스트 */
.nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-list li {
    display: block;
    margin: 0;
    padding: 0;
}

/* 폴더 리스트 스타일 */
.folder-list {
    margin: 0.5rem 0;
    padding: 0.25rem 0;
}

/* 네비게이션 아이템 */
.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 1rem;
    margin: 0.125rem 0.5rem;
    color: #64748b;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.875rem;
    line-height: 1.25rem;
    transition: all 0.15s ease;
    background: transparent;
    border: none;
    outline: none;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    position: relative;
}

.nav-item:hover {
    background-color: #f8fafc;
    color: #475569;
    text-decoration: none;
    transform: translateX(2px);
}

.nav-item:focus,
.nav-item:active {
    background-color: #f8fafc;
    color: #475569;
    outline: none;
    text-decoration: none;
}

.nav-item.active {
    background-color: #f1f5f9;
    color: #6366f1;
    font-weight: 600;
    position: relative;
    transform: translateX(2px);
    box-shadow: 0 2px 4px rgba(99, 102, 241, 0.1);
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 20px;
    background-color: #6366f1;
    border-radius: 0 2px 2px 0;
    box-shadow: 0 0 8px rgba(99, 102, 241, 0.3);
}

/* 폴더 아이템 */
.folder-item {
    justify-content: space-between;
    padding-left: 3rem;
}

.folder-item.active {
    background-color: #eef2ff;
    color: #6366f1;
}

.folder-item span:first-child {
    flex: 1;
}

.nav-item.active .badge {
    background-color: #6366f1;
    color: #ffffff;
}

/* 아이콘 스타일 */
.nav-item i {
    width: 1.25rem;
    font-size: 1rem;
    opacity: 0.7;
    flex-shrink: 0;
    text-align: center;
}

.nav-item:hover i,
.nav-item.active i {
    opacity: 1;
}

.section-header i {
    width: 1.25rem;
    font-size: 1rem;
    opacity: 0.7;
    flex-shrink: 0;
    text-align: center;
}

/* 사이드바 하단 */
.sidebar-bottom {
    flex-shrink: 0;
    padding: 1rem 0;
}

.bottom-nav {
    margin-bottom: 1rem;
}

/* 사용자 프로필 */
.user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    margin: 0 0.75rem;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    transition: all 0.15s ease;
    position: relative;
}

.user-profile:hover {
    background-color: #f8fafc;
}

/* 로그인 섹션 */
.login-section {
    margin: 0 0.75rem;
}

.login-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--bd-violet);
    text-decoration: none;
    border: 2px solid var(--bd-violet);
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all 0.15s ease;
    background: transparent;
}

.login-btn:hover {
    background-color: var(--bd-violet);
    color: #ffffff;
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.login-btn i {
    font-size: 1rem;
}

.user-avatar {
    position: relative;
    flex-shrink: 0;
    border: 1px solid;
    border-radius: 8px;
}

.user-avatar img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    object-fit: cover;
}


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

.user-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: #0f172a;
    line-height: 1.25;
    margin-bottom: 0.125rem;
}

.user-email {
    font-size: 0.75rem;
    color: #64748b;
    line-height: 1.25;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-menu-btn {
    background: transparent;
    border: none;
    color: #94a3b8;
    font-size: 1rem;
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 4px;
    transition: all 0.15s ease;
    flex-shrink: 0;
}

.user-menu-btn:hover {
    color: #64748b;
    background-color: #f1f5f9;
}

/* 드롭다운 메뉴 스타일 */
.dropdown-menu {
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: 0.5rem 0;
    min-width: 140px;
}

.dropdown-item {
    display: flex;
    align-items: center;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    color: #64748b;
    text-decoration: none;
    transition: all 0.15s ease;
}

.dropdown-item:hover {
    background-color: #f8fafc;
    color: #475569;
}

.dropdown-item i {
    opacity: 0.7;
}

/* 로그아웃 폼 버튼 스타일 */
.dropdown-item button {
    background: none;
    border: none;
    padding: 0;
    width: 100%;
    text-align: left;
    color: inherit;
    font-size: inherit;
    font-family: inherit;
    cursor: pointer;
    display: flex;
    align-items: center;
}

.dropdown-item button:hover {
    background: none;
    color: inherit;
}

/* 메인 콘텐츠 영역 */
.main-content {
    flex: 1;
    min-height: 100vh;
    background-color: #ffffff;
}

.content-wrapper {
    padding: 2rem;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .main-content {
        margin-left: 280px;
    }
}

@media (min-width: 992px) {
    .main-content {
        margin-left: 240px;
    }
}

/* 모바일 네비게이션 */
.mobile-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1050;
}

.mobile-nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 1rem;
}

.mobile-brand {
    color: #ffffff;
    text-decoration: none;
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: -0.025em;
}

.mobile-brand:hover {
    color: #ffffff;
    text-decoration: none;
}

.hamburger-btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    outline: none;
}

.hamburger-line {
    width: 24px;
    height: 2px;
    background-color: #ffffff;
    margin: 2px 0;
    transition: all 0.3s ease;
    border-radius: 1px;
}

.hamburger-btn:hover .hamburger-line {
    background-color: #e2e8f0;
}

.mobile-sidebar {
    width: 280px;
}

.mobile-sidebar-header {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    color: #ffffff;
    border-bottom: 1px solid #475569;
    padding: 1rem 1.5rem;
}

.mobile-sidebar-header .offcanvas-title {
    color: #ffffff;
    font-weight: 600;
    margin: 0;
}

.mobile-close-btn {
    background: transparent;
    border: none;
    color: #ffffff;
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.25rem;
    outline: none;
}

.mobile-close-btn:hover {
    color: #e2e8f0;
}

.mobile-sidebar-body {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    padding: 0;
    /* 모바일 사이드바 스크롤바도 숨기기 */
    scrollbar-width: none;
    /* Firefox */
    -ms-overflow-style: none;
    /* IE and Edge */
}

/* 모바일 사이드바 웹킷 스크롤바 숨기기 */
.mobile-sidebar-body::-webkit-scrollbar {
    display: none;
}

@media (max-width: 767.98px) {
    .main-content {
        margin-left: 0;
        padding-top: 60px;
    }

    .content-wrapper {
        padding: 1rem;
    }

    .desktop-sidebar {
        display: none !important;
    }
}

@media (min-width: 768px) and (max-width: 991.98px) {
    .content-wrapper {
        padding: 1.5rem;
    }
}

@media (min-width: 1200px) {
    .content-wrapper {
        padding: 2rem;
    }
}

/* Indigo Button Styles - Bootstrap SCSS 스타일 적용 */

/* CSS 커스텀 속성 정의 */
:root {
    --bd-violet: #6366f1;
    --bd-violet-bg: #6366f1;
    --bd-violet-rgb: 99, 102, 241;
    --bd-violet-shade-10: #5b5bd6;
    /* 10% darker */
    --bd-violet-shade-20: #4f46e5;
    /* 20% darker */
    --bs-white: #ffffff;
}

/* Bootstrap SCSS 스타일을 CSS로 구현한 .btn-bd-primary */
.btn-bd-primary {
    --bs-btn-font-weight: 600;
    --bs-btn-color: var(--bs-white);
    --bs-btn-bg: var(--bd-violet-bg);
    --bs-btn-border-color: var(--bd-violet-bg);
    --bs-btn-hover-color: var(--bs-white);
    --bs-btn-hover-bg: var(--bd-violet-shade-10);
    --bs-btn-hover-border-color: var(--bd-violet-shade-10);
    --bs-btn-focus-shadow-rgb: var(--bd-violet-rgb);
    --bs-btn-active-color: var(--bs-white);
    --bs-btn-active-bg: var(--bd-violet-shade-20);
    --bs-btn-active-border-color: var(--bd-violet-shade-20);
}

/* 기존 .btn-primary를 violet으로 오버라이드 */
.btn-primary {
    --bs-btn-font-weight: 600 !important;
    --bs-btn-color: var(--bs-white) !important;
    --bs-btn-bg: var(--bd-violet) !important;
    --bs-btn-border-color: var(--bd-violet) !important;
    --bs-btn-hover-color: var(--bs-white) !important;
    --bs-btn-hover-bg: var(--bd-violet-shade-10) !important;
    --bs-btn-hover-border-color: var(--bd-violet-shade-10) !important;
    --bs-btn-focus-shadow-rgb: var(--bd-violet-rgb) !important;
    --bs-btn-active-color: var(--bs-white) !important;
    --bs-btn-active-bg: var(--bd-violet-shade-20) !important;
    --bs-btn-active-border-color: var(--bd-violet-shade-20) !important;

    /* 추가 스타일링 */
    background-color: var(--bd-violet) !important;
    border-color: var(--bd-violet) !important;
    color: var(--bs-white) !important;
    font-weight: 600 !important;
    transition: all 0.15s ease !important;
}

.btn-primary:hover {
    background-color: var(--bd-violet-shade-10) !important;
    border-color: var(--bd-violet-shade-10) !important;
    color: var(--bs-white) !important;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3) !important;
}

.btn-primary:focus,
.btn-primary:active,
.btn-primary.active {
    background-color: var(--bd-violet-shade-20) !important;
    border-color: var(--bd-violet-shade-20) !important;
    color: var(--bs-white) !important;
    box-shadow: 0 0 0 0.2rem rgba(99, 102, 241, 0.25) !important;
}

/* Outline 버튼도 violet으로 업데이트 */
.btn-outline-primary {
    --bs-btn-color: var(--bd-violet) !important;
    --bs-btn-border-color: var(--bd-violet) !important;
    --bs-btn-hover-color: var(--bs-white) !important;
    --bs-btn-hover-bg: var(--bd-violet) !important;
    --bs-btn-hover-border-color: var(--bd-violet) !important;
    --bs-btn-focus-shadow-rgb: var(--bd-violet-rgb) !important;
    --bs-btn-active-color: var(--bs-white) !important;
    --bs-btn-active-bg: var(--bd-violet) !important;
    --bs-btn-active-border-color: var(--bd-violet) !important;

    border: 2px solid var(--bd-violet) !important;
    color: var(--bd-violet) !important;
    background: transparent !important;
    font-weight: 600 !important;
    transition: all 0.15s ease !important;
}

.btn-outline-primary:hover {
    background-color: var(--bd-violet) !important;
    border-color: var(--bd-violet) !important;
    color: var(--bs-white) !important;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3) !important;
}

.btn-outline-primary:focus,
.btn-outline-primary:active,
.btn-outline-primary.active {
    background-color: var(--bd-violet) !important;
    border-color: var(--bd-violet) !important;
    color: var(--bs-white) !important;
    box-shadow: 0 0 0 0.2rem rgba(99, 102, 241, 0.25) !important;
}/* Go
ogle AdSense 광고 스타일링 */
.ad-container {
    text-align: center;
    margin: 20px 0;
    padding: 10px;
    background-color: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e9ecef;
}

.ad-container.top-ad {
    margin-top: 0;
}

.ad-container.bottom-ad {
    margin-bottom: 0;
}

.ad-container.sidebar-ad {
    position: sticky;
    top: 20px;
    margin: 20px 0;
}

/* 반응형 광고 */
@media (max-width: 768px) {
    .ad-container {
        margin: 15px 0;
        padding: 8px;
    }
}

/* 광고 로딩 상태 */
.ad-container ins[data-ad-status="unfilled"] {
    display: none !important;
}

/* 광고와 콘텐츠 구분 */
.ad-container::before {
    content: "광고";
    display: block;
    font-size: 12px;
    color: #6c757d;
    margin-bottom: 5px;
    text-transform: uppercase;
}