:root {
    --primary: #dc2626;
    --primary-dark: #991b1b;
    --primary-light: #f87171;
    --secondary: #ef4444;
    --success: #dc2626;
    --danger: #f43f5e;
    --warning: #f59e0b;
    --info: #b91c1c;
    --dark: #1e293b;
    --light: #fef2f2;
    --border: #fecaca;
    --text: #64748b;
    --text-dark: #0f172a;
    --sidebar-width: 270px;
    --header-height: 72px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #fef2f2;
    color: var(--text-dark);
    overflow-x: hidden;
}

/* Sidebar styles moved to assets/css/sidebar.css */

/* Main Content */
.main-content {
    margin-left: 0;
    min-height: 100vh;
    transition: all 0.3s ease;
}

/* Header */
.top-header {
    height: var(--header-height);
    background: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2.25rem;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 2px solid var(--border);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1.75rem;
}

.menu-toggle {
    display: block;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-dark);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.menu-toggle:hover {
    background: var(--light);
    color: var(--primary);
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    font-size: 1.2rem;
    font-weight: 800;
}

.header-logo img {
    height: 38px;
    width: auto;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1.125rem;
}

.header-icon {
    position: relative;
    background: var(--light);
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dark);
    cursor: pointer;
    transition: all 0.3s ease;
}

.header-icon:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(220, 38, 38, 0.3);
}

.header-icon .badge {
    position: absolute;
    top: -6px;
    right: -6px;
    background: var(--danger);
    color: white;
    font-size: 0.6rem;
    padding: 0.25rem 0.45rem;
    border-radius: 12px;
    min-width: 20px;
    text-align: center;
    font-weight: 700;
    border: 2px solid white;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    cursor: pointer;
    padding: 0.5rem 0.875rem;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.user-profile:hover {
    background: var(--light);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.9rem;
    border: 2px solid white;
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.2);
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-dark);
}

.user-role {
    font-size: 0.7rem;
    color: var(--text);
}

.user-profile {
    position: relative;
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 0.75rem);
    right: 0;
    background: white;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12), 0 0 0 1px rgba(0, 0, 0, 0.05);
    min-width: 220px;
    padding: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    border: 2px solid var(--border);
}

.user-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-header {
    padding: 1rem;
    border-bottom: 2px solid var(--border);
    margin-bottom: 0.5rem;
}

.dropdown-user-name {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.dropdown-user-email {
    font-size: 0.8rem;
    color: var(--text);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    color: var(--text-dark);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.2s ease;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
}

.dropdown-item:hover {
    background: var(--light);
    color: var(--primary);
}

.dropdown-item.logout {
    color: var(--danger);
    margin-top: 0.5rem;
    border-top: 2px solid var(--border);
    padding-top: 1rem;
}

.dropdown-item.logout:hover {
    background: #fff1f2;
    color: var(--danger);
}

.dropdown-item i {
    width: 20px;
    text-align: center;
    font-size: 1rem;
}
/* Content Area */
        .content-wrapper {
            padding: 2.25rem;
        }

        .page-header {
            margin-bottom: 2.25rem;
        }

        .page-title {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--text-dark);
            margin-bottom: 0.625rem;
            letter-spacing: -1px;
        }

        .page-subtitle {
            color: var(--text);
            font-size: 1.05rem;
            font-weight: 400;
        }

        /* Carousel Settings Section */
        .settings-section {
            background: white;
            border-radius: 16px;
            padding: 2rem;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
            border: 2px solid var(--border);
            margin-bottom: 2.25rem;
        }

        .settings-section h3 {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 1.75rem;
            padding-bottom: 1.25rem;
            border-bottom: 2px solid var(--border);
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .settings-section h3 i {
            color: var(--primary);
        }

        /* Carousel Item Card */
        .carousel-item-card {
            background: white;
            border: 2px solid var(--border);
            border-radius: 12px;
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            transition: all 0.3s ease;
            position: relative;
        }

        .carousel-item-card:hover {
            border-color: var(--primary);
            box-shadow: 0 6px 20px rgba(220, 38, 38, 0.1);
            transform: translateY(-2px);
        }

        .carousel-item-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1.25rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid var(--border);
        }

        .carousel-item-number {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: white;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
        }

        .carousel-item-actions {
            display: flex;
            gap: 0.5rem;
        }

        .btn-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 0.9rem;
        }

        .btn-icon.btn-edit {
            background: var(--light);
            color: var(--primary);
        }

        .btn-icon.btn-edit:hover {
            background: var(--primary);
            color: white;
        }

        .btn-icon.btn-delete {
            background: #fff1f2;
            color: var(--danger);
        }

        .btn-icon.btn-delete:hover {
            background: var(--danger);
            color: white;
        }

        .form-group {
            margin-bottom: 1.25rem;
        }

        .form-label {
            font-weight: 600;
            color: var(--text-dark);
            font-size: 0.9rem;
            margin-bottom: 0.5rem;
            display: block;
        }

        .form-control,
        .form-select {
            border-radius: 8px;
            border: 2px solid var(--border);
            padding: 0.75rem 1rem;
            transition: all 0.3s ease;
            font-size: 0.95rem;
        }

        .form-control:focus,
        .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
            outline: none;
        }

        /* Custom Dropdown Styles */
        .custom-dropdown {
            position: relative;
            width: 100%;
            z-index: 1;
        }

        .custom-dropdown.active {
            z-index: 10001 !important;
            position: relative;
        }

        .custom-dropdown.active .custom-dropdown-menu {
            z-index: 10001 !important;
        }

        .custom-dropdown-btn {
            width: 100%;
            border: 2px solid var(--border);
            border-radius: 8px;
            padding: 0.75rem 1rem;
            font-size: 0.95rem;
            background: white;
            transition: all 0.3s ease;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
            color: var(--text-dark);
            font-weight: 500;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            text-align: left;
        }

        .custom-dropdown-btn:hover {
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(220, 38, 38, 0.15);
        }

        .custom-dropdown-btn:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(220, 38, 38, 0.15);
            background: white;
        }

        .custom-dropdown-btn:disabled {
            background: var(--light);
            color: var(--text);
            cursor: not-allowed;
            opacity: 0.7;
        }

        .custom-dropdown-btn i {
            font-size: 0.75rem;
            transition: transform 0.3s ease;
            color: var(--text);
        }

        .custom-dropdown.active .custom-dropdown-btn i {
            transform: rotate(180deg);
        }

        .custom-dropdown-menu {
            position: absolute;
            top: calc(100% + 5px);
            left: 0;
            right: 0;
            background: white !important;
            border: 2px solid var(--border);
            border-radius: 8px;
            box-shadow: 0 8px 25px rgba(220, 38, 38, 0.2);
            z-index: 10001 !important;
            max-height: 300px;
            overflow-y: auto;
            overflow-x: hidden;
            display: none;
        }

        .custom-dropdown.active .custom-dropdown-menu {
            display: block;
        }

        .custom-dropdown-items {
            max-height: 300px;
            overflow-y: auto;
            background: white !important;
        }

        .custom-dropdown-item {
            padding: 0.75rem 1rem;
            cursor: pointer;
            transition: all 0.2s ease;
            border-bottom: 1px solid var(--border);
            color: var(--text-dark);
            font-weight: 500;
            background: white !important;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .custom-dropdown-item:last-child {
            border-bottom: none;
        }

        .custom-dropdown-item:hover {
            background: var(--light) !important;
            color: var(--primary);
        }

        .custom-dropdown-item.selected {
            color: var(--primary);
            font-weight: 600;
            background: rgba(220, 38, 38, 0.08) !important;
        }

        .custom-dropdown-item i {
            width: 20px;
            text-align: center;
        }

        .image-upload-area {
            border: 2px dashed var(--border);
            border-radius: 12px;
            padding: 2rem;
            text-align: center;
            background: var(--light);
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
        }

        .image-upload-area:hover {
            border-color: var(--primary);
            background: rgba(220, 38, 38, 0.05);
        }

        .image-upload-area.has-image {
            padding: 0;
            border-style: solid;
        }

        .image-preview {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 10px;
        }

        .upload-placeholder {
            color: var(--text);
        }

        .upload-placeholder i {
            font-size: 3rem;
            color: var(--border);
            margin-bottom: 1rem;
            display: block;
        }

        .btn-primary {
            background: var(--primary);
            border: none;
            padding: 0.875rem 2rem;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.3s ease;
            color: white;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(220, 38, 38, 0.3);
        }

        .btn-outline-primary {
            border: 2px solid var(--primary);
            color: var(--primary);
            background: transparent;
            padding: 0.875rem 2rem;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.3s ease;
        }

        .btn-outline-primary:hover {
            background: var(--primary);
            color: white;
        }

        .btn-success {
            background: var(--success);
            border: none;
            padding: 0.875rem 2rem;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.3s ease;
            color: white;
        }

        .btn-success:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(220, 38, 38, 0.3);
        }

        .toggle-switch {
            position: relative;
            display: inline-block;
            width: 60px;
            height: 30px;
        }

        .toggle-switch input {
            opacity: 0;
            width: 0;
            height: 0;
        }

        .toggle-slider {
            position: absolute;
            cursor: pointer;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: #ccc;
            transition: 0.4s;
            border-radius: 30px;
        }

        .toggle-slider:before {
            position: absolute;
            content: "";
            height: 22px;
            width: 22px;
            left: 4px;
            bottom: 4px;
            background-color: white;
            transition: 0.4s;
            border-radius: 50%;
        }

        input:checked+.toggle-slider {
            background-color: var(--primary);
        }

        input:checked+.toggle-slider:before {
            transform: translateX(30px);
        }

        /* Sidebar Toggle States */
        .sidebar.hidden {
            transform: translateX(-100%);
            left: -100%;
        }

        .main-content.sidebar-hidden {
            margin-left: 0;
        }

        /* Desktop toggle support */
        @media (min-width: 1025px) {
            .sidebar.hidden {
                transform: translateX(-100%);
                left: -100%;
            }

            .main-content.sidebar-hidden {
                margin-left: 0;
            }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .sidebar {
                left: -100%;
            }

            .sidebar.active {
                left: 0;
            }

            .main-content {
                margin-left: 0;
            }

            .menu-toggle {
                display: block;
            }
        }

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

            .page-title {
                font-size: 2rem;
            }
        }

        .sidebar::-webkit-scrollbar {
            width: 6px;
        }

        .sidebar::-webkit-scrollbar-track {
            background: transparent;
        }

        .sidebar::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 3px;
        }

        .sidebar::-webkit-scrollbar-thumb:hover {
            background: var(--primary);
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .sidebar-overlay.active {
            display: block;
            opacity: 1;
        }

        .alert {
            padding: 1rem 1.5rem;
            border-radius: 10px;
            margin-bottom: 1.5rem;
            border: 2px solid;
        }

        .alert-success {
            background: #f0fdf4;
            border-color: #86efac;
            color: #166534;
        }

        .alert-danger {
            background: #fef2f2;
            border-color: #fecaca;
            color: #991b1b;
        }

        .alert-info {
            background: #eff6ff;
            border-color: #bfdbfe;
            color: #1e40af;
        }

        /* --- Design 3: Split Preview Layout --- */
        .d3-container {
            display: grid;
            grid-template-columns: 350px 1fr;
            gap: 2rem;
            background: white;
            padding: 2rem;
            border-radius: 20px;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            border: 1px solid var(--border);
            min-height: 600px;
        }

        .d3-sidebar {
            border-right: 1px solid var(--border);
            padding-right: 2rem;
            display: flex;
            flex-direction: column;
        }

        .d3-list-container {
            max-height: 300px;
            overflow-y: auto;
            margin-bottom: 2rem;
        }

        .d3-list-item {
            padding: 1rem;
            border-radius: 10px;
            cursor: pointer;
            transition: 0.2s;
            border: 1px solid transparent;
            margin-bottom: 0.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .d3-list-item:hover {
            background: var(--light);
        }

        .d3-list-item.active {
            background: #fef2f2;
            border-color: var(--border);
        }

        .d3-editor-form {
            border-top: 1px solid var(--border);
            padding-top: 1.5rem;
            overflow-y: auto;
            max-height: 400px;
        }

        .d3-preview {
            position: sticky;
            top: 2rem;
        }

        .d3-preview-mockup {
            background: #1e293b;
            border-radius: 12px;
            aspect-ratio: 16/9;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            position: relative;
            background-size: cover;
            background-position: center;
            overflow: hidden;
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
        }

        .d3-preview-mockup.mobile-mode {
            width: 320px;
            aspect-ratio: 9/19;
            margin: 0 auto;
            border-radius: 30px;
            border: 10px solid #334155;
        }

        .d3-mockup-overlay {
            position: absolute;
            inset: 0;
            background: rgba(0, 0, 0, 0.4);
            z-index: 1;
        }

        .d3-mockup-content {
            z-index: 2;
            text-align: center;
            padding: 2rem;
            width: 100%;
        }

        /* --- Design 3: Minimal Strip (Added) --- */
        .d3-strip {
            background: white;
            border-radius: 100px;
            padding: 1rem 2rem;
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
            display: flex;
            align-items: center;
            gap: 1.5rem;
            flex-wrap: wrap;
            border: 1px solid var(--border);
        }

        @media (max-width: 991px) {
            .d3-strip {
                border-radius: 20px;
                flex-direction: column;
                align-items: stretch;
                gap: 1rem;
                padding: 1.5rem;
            }

            .d3-strip .vr {
                display: none;
            }

            .d3-strip .ms-auto {
                margin-left: 0 !important;
                width: 100%;
            }

            .d3-strip button {
                width: 100% !important;
                border-radius: 12px !important;
                height: 45px !important;
            }
        }