/* ============================================================
   사이드바 v2 (J 스타일 - 컬러바 + 글로우 + 아코디언)
   - 다른 페이지 영향 없도록 .sidebar-v2 하위로 격리
   ============================================================ */

.sidebar-v2 {
    width: 280px;
    background: #1a1a1a;
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 20px 16px;
    box-sizing: border-box;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 100;
    font-family: 'Noto Sans KR', sans-serif;
    contain: layout style;
}

.sidebar-v2 .brand {
    margin-bottom: 16px;
    padding: 0 4px;
}

.sidebar-v2 .brand-name {
    color: #fff;
    font-size: 16px;
    font-weight: 500;
    margin: 0;
}

.sidebar-v2 .brand-tagline {
    color: #888;
    font-size: 11px;
    margin: 4px 0 0;
}

.sidebar-v2 .menu-section-label {
    color: #666;
    font-size: 10px;
    font-weight: 500;
    margin: 0 0 10px;
    padding: 0 4px;
    letter-spacing: 1px;
}

.sidebar-v2 .menu-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-v2 .menu-item {
    list-style: none;
}

/* ===== 부모 버튼 (J 스타일) ===== */
.sidebar-v2 .parent-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    background: #252525;
    border: none;
    padding: 14px 16px 14px 14px;
    cursor: pointer;
    color: #fff;
    text-align: left;
    border-radius: 10px;
    border-left: 4px solid var(--menu-color, #888);
    box-shadow:
        0 3px 6px rgba(0,0,0,0.4),
        -3px 0 8px var(--menu-glow, rgba(136,136,136,0.15)),
        inset 0 1px 0 rgba(255,255,255,0.06);
    transition: all 0.15s;
    font-family: inherit;
}

.sidebar-v2 .parent-btn:hover {
    transform: translateY(-3px);
    box-shadow:
        0 8px 14px rgba(0,0,0,0.5),
        -4px 0 12px var(--menu-glow-hover, rgba(136,136,136,0.3)),
        inset 0 1px 0 rgba(255,255,255,0.08);
}

.sidebar-v2 .parent-btn-content {
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-v2 .parent-btn-icon {
    font-size: 16px;
}

.sidebar-v2 .parent-btn-label {
    font-size: 14px;
    font-weight: 500;
}

.sidebar-v2 .parent-btn-badge {
    color: #fff;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 8px;
    font-weight: 500;
    background: var(--menu-color, #888);
}

.sidebar-v2 .parent-btn-badge.dark-text {
    color: #1a1a1a;
}

.sidebar-v2 .chevron {
    color: #888;
    font-size: 14px;
}

.sidebar-v2 .menu-item.open .chevron {
    transform: rotate(90deg);
}

/* ===== 자식 메뉴 (들여쓰기 + 흐린 색) ===== */
.sidebar-v2 .children {
    margin-top: 6px;
    padding-left: 18px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    overflow: hidden;
    max-height: 0;
    opacity: 0;
}

.sidebar-v2 .menu-item.open .children {
    max-height: 500px;
    opacity: 1;
}

/* 사용자 클릭 시에만 트랜지션 활성화 (페이지 로드 시 깜빡임 방지) */
.sidebar-v2.user-interacted .children {
    transition: max-height 0.25s ease, opacity 0.2s ease;
}

.sidebar-v2.user-interacted .chevron {
    transition: transform 0.2s;
}

.sidebar-v2 .child-link {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    background: transparent;
    border: none;
    padding: 10px 12px;
    cursor: pointer;
    color: #fff;
    text-align: left;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.12s;
    text-decoration: none;
}

.sidebar-v2 .child-link:hover {
    background: #2a2a2a;
    color: #fff;
}

.sidebar-v2 .child-link.active {
    background: #2d2d2d;
    color: #fff;
}

.sidebar-v2 .child-icon {
    font-size: 14px;
    opacity: 1;
}

.sidebar-v2 .child-count {
    color: #888;
    font-size: 11px;
    margin-left: auto;
}

/* ===== 하단 사용자 카드 ===== */
.sidebar-v2 .user-card {
    margin-top: 24px;
    padding: 12px;
    background: #0d0d0d;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-v2 .user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(34,197,94,0.13);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    color: #22c55e;
    font-weight: 500;
}

.sidebar-v2 .user-info-name {
    color: #fff;
    font-size: 13px;
    margin: 0;
    font-weight: 500;
}

.sidebar-v2 .user-info-email {
    color: #666;
    font-size: 11px;
    margin: 0;
}

/* ===== 메인 컨텐츠 영역 (사이드바 폭만큼 마진) ===== */
.sidebar-v2-layout {
    margin-left: 280px;
    min-height: 100vh;
}

@media (max-width: 768px) {
    .sidebar-v2 {
        transform: translateX(-100%);
        transition: transform 0.25s;
    }
    .sidebar-v2.mobile-open {
        transform: translateX(0);
    }
    .sidebar-v2-layout {
        margin-left: 0;
    }
}

/* ============================================================
   v3 추가 스타일 (로고 박스 + 계정/로그아웃 버튼)
   ============================================================ */

/* 로고 박스 */
.sidebar-v2 .brand {
    margin-bottom: 24px;
    padding: 0;
    text-align: center;
}

.sidebar-v2 .brand-box {
    background: #0d0d0d;
    border-radius: 12px;
    padding: 24px 16px;
    border: 1px solid #252525;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
    margin-bottom: 8px;
}

.sidebar-v2 .brand-name {
    color: #fff;
    font-size: 32px;
    font-weight: 700;
    margin: 0;
    line-height: 1;
    letter-spacing: 2px;
    text-align: center;
}

.sidebar-v2 .brand-tagline {
    color: #888;
    font-size: 11px;
    margin: 0;
    text-align: center;
}

/* 계정 섹션 */
.sidebar-v2 .account-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 16px;
}

/* 계정 버튼 */
.sidebar-v2 .account-btn {
    display: flex;
    align-items: center;
    width: 100%;
    background: #252525;
    border: none;
    padding: 14px 16px 14px 14px;
    cursor: pointer;
    color: #fff;
    text-align: left;
    border-radius: 10px;
    border-left: 4px solid var(--menu-color, #14b8a6);
    box-shadow:
        0 3px 6px rgba(0,0,0,0.4),
        -3px 0 8px var(--menu-glow, rgba(20,184,166,0.15)),
        inset 0 1px 0 rgba(255,255,255,0.06);
    transition: all 0.15s;
    text-decoration: none;
    box-sizing: border-box;
}

.sidebar-v2 .account-btn:hover {
    transform: translateY(-3px);
    box-shadow:
        0 8px 14px rgba(0,0,0,0.5),
        -4px 0 12px var(--menu-glow-hover, rgba(20,184,166,0.3)),
        inset 0 1px 0 rgba(255,255,255,0.08);
}

.sidebar-v2 .account-btn-content {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
    width: 100%;
}

.sidebar-v2 .account-btn-icon {
    font-size: 16px;
    flex-shrink: 0;
}

.sidebar-v2 .account-btn-info {
    min-width: 0;
    overflow: hidden;
}

.sidebar-v2 .account-btn-name {
    font-size: 14px;
    font-weight: 500;
    margin: 0;
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-v2 .account-btn-email {
    font-size: 11px;
    margin: 2px 0 0;
    color: #888;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 로그아웃 버튼 */
.sidebar-v2 .logout-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    background: #252525;
    border: none;
    padding: 14px 16px 14px 14px;
    cursor: pointer;
    color: #fff;
    text-align: left;
    border-radius: 10px;
    border-left: 4px solid var(--menu-color, #dc2626);
    box-shadow:
        0 3px 6px rgba(0,0,0,0.4),
        -3px 0 8px var(--menu-glow, rgba(220,38,38,0.15)),
        inset 0 1px 0 rgba(255,255,255,0.06);
    transition: all 0.15s;
    text-decoration: none;
    box-sizing: border-box;
}

.sidebar-v2 .logout-btn:hover {
    transform: translateY(-3px);
    box-shadow:
        0 8px 14px rgba(0,0,0,0.5),
        -4px 0 12px var(--menu-glow-hover, rgba(220,38,38,0.3)),
        inset 0 1px 0 rgba(255,255,255,0.08);
}

.sidebar-v2 .logout-btn-content {
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-v2 .logout-btn-icon {
    font-size: 16px;
}

.sidebar-v2 .logout-btn-label {
    font-size: 14px;
    font-weight: 500;
}

/* ===== FOUC 방지 + 깜빡임 최소화 ===== */
body {
    background: #ffffff;
    margin: 0;
}

.sidebar-v2-layout {
    background: #ffffff;
    min-height: 100vh;
    animation: sb-fadeIn 0.15s ease-out;
}

@keyframes sb-fadeIn {
    from { opacity: 0.7; }
    to   { opacity: 1; }
}