:root {
    --bg-dark: #0a0a0f;
    --bg-panel: #14141e;
    --bg-hover: #1e1e2d;
    --text-main: #ffffff;
    --text-muted: #8b8b9b;
    --accent: #6366f1;
    --accent-hover: #4f46e5;
    --border: #2d2d3a;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Outfit', 'Noto Sans KR', sans-serif; }

body { background-color: var(--bg-dark); color: var(--text-main); height: 100vh; overflow: hidden; }

/* Layout */
.admin-container { display: flex; height: 100%; }

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: var(--bg-panel);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 2.5rem;
    padding-left: 0.5rem;
}
.logo-icon { font-size: 1.5rem; }

.menu-category {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.8rem;
    margin-top: 1.5rem;
    padding-left: 0.8rem;
    letter-spacing: 0.5px;
}
.menu-category:first-of-type { margin-top: 0; }

.menu-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.8rem 1rem;
    border-radius: 8px;
    color: var(--text-muted);
    text-decoration: none;
    transition: 0.2s;
    font-size: 0.95rem;
    margin-bottom: 0.3rem;
}
.menu-item:hover, .menu-item.active {
    background-color: rgba(99, 102, 241, 0.1);
    color: var(--accent);
}
.menu-item i { width: 20px; text-align: center; }

.badge {
    margin-left: auto;
    background-color: var(--danger);
    color: white;
    font-size: 0.7rem;
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
}

.sidebar-footer { margin-top: auto; border-top: 1px solid var(--border); padding-top: 1rem; }
.logout-btn {
    width: 100%;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    text-align: left;
    padding: 0.8rem 1rem;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: 0.2s;
}
.logout-btn:hover { color: var(--danger); }

/* Main Content */
.main-content {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
    background-color: var(--bg-dark);
}

.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}
.top-header h2 { font-size: 1.8rem; font-weight: 700; }
.user-info { display: flex; align-items: center; gap: 0.8rem; background: var(--bg-panel); padding: 0.5rem 1rem; border-radius: 50px; border: 1px solid var(--border); }
.admin-avatar {
    width: 32px; height: 32px;
    background: var(--accent);
    color: white;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.9rem;
}

/* Dashboard Stats */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}
.stat-card {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.2rem;
}
.stat-icon {
    width: 50px; height: 50px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem;
}
.icon-blue { background: rgba(59, 130, 246, 0.1); color: var(--info); }
.icon-purple { background: rgba(139, 92, 246, 0.1); color: #8b5cf6; }
.icon-red { background: rgba(239, 68, 68, 0.1); color: var(--danger); }
.icon-green { background: rgba(34, 197, 94, 0.1); color: var(--success); }
.stat-info h3 { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; margin-bottom: 0.3rem; }
.stat-value { font-size: 1.8rem; font-weight: 700; }

/* Dashboard Split */
.dashboard-split { display: grid; grid-template-columns: 2fr 1fr; gap: 1.5rem; }
.card { background: var(--bg-panel); border: 1px solid var(--border); border-radius: 12px; padding: 1.5rem; }
.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; border-bottom: 1px solid var(--border); padding-bottom: 1rem; }
.card-header h3 { font-size: 1.1rem; }

/* Tables */
.table-container { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
.data-table th { text-align: left; padding: 1rem; color: var(--text-muted); font-weight: 500; border-bottom: 1px solid var(--border); }
.data-table td { padding: 1rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
.status-badge { padding: 0.3rem 0.8rem; border-radius: 50px; font-size: 0.8rem; font-weight: 500; }
.status-active { background: rgba(34, 197, 94, 0.1); color: var(--success); }
.status-draft { background: rgba(245, 158, 11, 0.1); color: var(--warning); }

/* Quick Actions */
.action-buttons { display: flex; flex-direction: column; gap: 0.8rem; }
.action-btn {
    background: var(--bg-hover);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 0.8rem;
    border-radius: 8px;
    text-align: left;
    cursor: pointer;
    transition: 0.2s;
    display: flex; align-items: center; gap: 0.8rem;
}
.action-btn:hover { border-color: var(--accent); color: var(--accent); }
.btn-primary-sm { background: var(--accent); color: white; border: none; padding: 0.5rem 1rem; border-radius: 6px; cursor: pointer; font-size: 0.9rem; }

/* Page Views */
.page-view { display: none; animation: fadeIn 0.3s ease; }
.page-view.active { display: block; }

/* Login Modal */
.login-overlay {
    position: fixed; inset: 0; background: rgba(0,0,0,0.8); z-index: 9999;
    display: flex; align-items: center; justify-content: center;
}
.login-box {
    background: var(--bg-panel); padding: 2.5rem; border-radius: 16px; border: 1px solid var(--border);
    width: 100%; max-width: 400px; text-align: center;
}
.login-header { margin-bottom: 2rem; }
.login-header h2 { font-size: 1.8rem; margin-bottom: 0.5rem; }
.login-header p { color: var(--text-muted); }
#loginForm { display: none; } /* Hide old form */
.google-login-btn {
    background: white; color: #333; border: none; padding: 1rem;
    border-radius: 8px; font-size: 1rem; font-weight: 600; cursor: pointer;
    display: flex; align-items: center; justify-content: center; gap: 1rem;
    width: 100%; transition: 0.2s;
}
.google-login-btn:hover { background: #f1f1f1; transform: translateY(-2px); }
.error-msg { color: var(--danger); font-size: 0.9rem; margin-top: 1rem; min-height: 1.2rem; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

@media (max-width: 768px) {
    .admin-container { flex-direction: column; }
    
    /* Mobile Sidebar */
    .sidebar { 
        position: fixed; 
        top: 0; left: 0; bottom: 0; 
        width: 280px; 
        z-index: 1000; 
        transform: translateX(-100%); 
        transition: transform 0.3s ease;
        display: flex; /* Force flex to override previous display:none if any */
    }
    .sidebar.active { transform: translateX(0); }
    
    /* Overlay */
    .sidebar-overlay {
        position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 999;
        display: none; opacity: 0; transition: opacity 0.3s;
    }
    .sidebar-overlay.active { display: block; opacity: 1; }

    /* Header adjustments */
    .top-header { padding-top: 1rem; }
    #mobileMenuBtn { display: block !important; }
    
    /* Content Layout */
    .stat-grid { grid-template-columns: 1fr; gap: 1rem; }
    .dashboard-split { grid-template-columns: 1fr; }
    
    .main-content { padding: 1rem; }
}