/* Cards */
        .card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            padding: var(--space-6);
            transition: all 0.3s ease;
        }

        .card:hover {
            box-shadow: 0 10px 25px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
        }

        /* Buttons */
        .btn {
            display: inline-block;
            padding: var(--space-3) var(--space-5);
            border: none;
            border-radius: var(--radius-md);
            font-size: 0.875rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            position: relative;
            overflow: hidden;
        }

        .btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.5s;
        }

        .btn:hover::before {
            left: 100%;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(17, 68, 115, 0.3);
        }

        .btn-success {
            background: var(--success);
            color: white;
        }

        .btn-success:hover {
            opacity: 0.9;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(16, 185, 129, 0.3);
        }

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

        .btn-danger:hover {
            opacity: 0.9;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(239, 68, 68, 0.3);
        }

        .btn-secondary {
            background: var(--secondary);
            color: white;
        }

        .btn-secondary:hover {
            opacity: 0.9;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(100, 116, 139, 0.3);
        }

        .btn-warning {
            background: var(--warning);
            color: white;
        }

        .btn-warning:hover {
            opacity: 0.9;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(245, 158, 11, 0.3);
        }

        /* Badges */
        .badge {
            display: inline-block;
            padding: var(--space-2) var(--space-3);
            border-radius: var(--radius-md);
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            transition: all 0.3s ease;
        }

        .badge:hover {
            transform: translateY(-1px);
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }

        .badge-bot {
            background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
            color: #1e40af;
            border: 1px solid #93c5fd;
        }

        .badge-human {
            background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
            color: #166534;
            border: 1px solid #86efac;
        }

        .badge-facebook {
            background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
            color: #1e40af;
            border: 1px solid #93c5fd;
        }

        .badge-zalo {
            background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
            color: #0369a1;
            border: 1px solid #7dd3fc;
        }

        .badge-web {
            background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
            color: #166534;
            border: 1px solid #86efac;
        }

        /* Forms */
        .form-group {
            margin-bottom: var(--space-4);
        }

        .form-label {
            display: block;
            margin-bottom: var(--space-2);
            font-weight: 500;
        }

        .form-input,
        .form-textarea {
            width: 100%;
            padding: var(--space-2);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.875rem;
            font-family: inherit;
        }

        .form-input:focus,
        .form-textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(17, 68, 115, 0.1);
        }

/* Modal Styles */
        .modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 9999;
            display: flex;
            align-items: center;
            justify-content: center;
            animation: fadeIn 0.3s ease;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
            }

            to {
                opacity: 1;
            }
        }

        .modal-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(4px);
        }

        .modal-content {
            position: relative;
            background: white;
            border-radius: var(--radius-lg);
            width: 90%;
            max-width: 450px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            animation: slideUp 0.3s ease;
            overflow: hidden;
        }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .modal-header {
            background: linear-gradient(135deg, var(--primary) 0%, #1c5a5e 100%);
            color: white;
            padding: var(--space-8);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .modal-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin: 0;
        }

        .modal-close {
            background: rgba(255, 255, 255, 0.2);
            border: none;
            color: white;
            font-size: 1.5rem;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            line-height: 1;
        }

        .modal-close:hover {
            background: rgba(255, 255, 255, 0.3);
            transform: rotate(90deg);
        }

        .modal-body {
            padding: var(--space-8);
        }

        .alert {
            padding: var(--space-4);
            border-radius: var(--radius-md);
            margin-bottom: var(--space-4);
            font-size: 0.875rem;
        }

        .alert-error {
            background: #fee2e2;
            color: #991b1b;
            border: 1px solid #fecaca;
        }

        .alert-success {
            background: #dcfce7;
            color: #166534;
            border: 1px solid #bbf7d0;
        }

        .component-card {
            display: flex;
            flex-direction: column;
            gap: var(--space-4);
        }

        .component-card__header,
        .component-card__footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--space-3);
            flex-wrap: wrap;
        }

        .component-card__title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
        }

        .component-card__subtitle {
            font-size: 0.875rem;
            color: var(--text-light);
        }

        .component-input {
            display: flex;
            flex-direction: column;
            gap: var(--space-2);
        }

        .component-input__label {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text);
        }

        .component-input__control {
            width: 100%;
            padding: var(--space-3) var(--space-4);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            font: inherit;
            color: var(--text);
            background: var(--card);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .component-input__control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(17, 68, 115, 0.12);
        }

        .component-input--error .component-input__control {
            border-color: var(--danger);
            box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.12);
        }

        .component-input__error {
            font-size: 0.8125rem;
            color: var(--danger);
        }

        .component-empty-state {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: var(--space-3);
            padding: var(--space-10) var(--space-6);
            border: 1px dashed rgba(148, 163, 184, 0.45);
            border-radius: var(--radius-lg);
            background: linear-gradient(180deg, rgba(248, 250, 252, 0.95) 0%, rgba(255, 255, 255, 0.98) 100%);
            text-align: center;
        }

        .component-empty-state__icon {
            font-size: 2rem;
            line-height: 1;
        }

        .component-empty-state__title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
        }

        .component-empty-state__description {
            max-width: 36rem;
            color: var(--text-light);
            font-size: 0.9375rem;
        }

        .component-skeleton {
            display: grid;
            gap: var(--space-3);
        }

        .component-skeleton__row {
            display: flex;
            align-items: center;
            gap: var(--space-3);
        }

        .component-skeleton__avatar,
        .component-skeleton__block,
        .component-skeleton__line {
            background: linear-gradient(90deg, rgba(226, 232, 240, 0.7) 0%, rgba(241, 245, 249, 1) 50%, rgba(226, 232, 240, 0.7) 100%);
            background-size: 200% 100%;
            animation: component-skeleton-shimmer 1.4s linear infinite;
        }

        .component-skeleton__avatar {
            width: 2.75rem;
            height: 2.75rem;
            border-radius: 999px;
            flex-shrink: 0;
        }

        .component-skeleton__line {
            height: 0.875rem;
            border-radius: 999px;
            width: 100%;
        }

        .component-skeleton__line--short {
            width: 35%;
        }

        .component-skeleton__line--medium {
            width: 65%;
        }

        .component-skeleton__block {
            width: 100%;
            min-height: 8rem;
            border-radius: var(--radius-lg);
        }

        .component-skeleton--message .component-skeleton__block {
            min-height: 4rem;
        }

        @keyframes component-skeleton-shimmer {
            from {
                background-position: 100% 0;
            }

            to {
                background-position: -100% 0;
            }
        }