/* ========================================================================== */
        /* VARIABLES CSS ACTUALIZADAS */
        /* ========================================================================== */
        .pc-builder-sheet {
            --pc-builder-primary-blue: #2563eb;
            --pc-builder-primary-blue-dark: #1e40af;
            --pc-builder-primary-blue-light: #3b82f6;
            --pc-builder-success-green: #059669;
            --pc-builder-success-green-dark: #047857;
            --pc-builder-warning-orange: #d97706;
            --pc-builder-warning-orange-dark: #b45309;
            --pc-builder-error-red: #dc2626;
            --pc-builder-error-red-dark: #b91c1c;

            --pc-builder-gray-50: #f8fafc;
            --pc-builder-gray-100: #f1f5f9;
            --pc-builder-gray-200: #e2e8f0;
            --pc-builder-gray-300: #cbd5e1;
            --pc-builder-gray-400: #94a3b8;
            --pc-builder-gray-500: #64748b;
            --pc-builder-gray-600: #475569;
            --pc-builder-gray-700: #334155;
            --pc-builder-gray-800: #1e293b;
            --pc-builder-gray-900: #0f172a;

            --pc-builder-shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
            --pc-builder-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
            --pc-builder-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
            --pc-builder-shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

            --pc-builder-radius-sm: 6px;
            --pc-builder-radius-md: 8px;
            --pc-builder-radius-lg: 12px;
            --pc-builder-radius-xl: 16px;

            --pc-builder-transition: all 0.2s ease-in-out;

            min-height: 100vh;
            background: linear-gradient(135deg, var(--pc-builder-gray-50) 0%, var(--pc-builder-gray-100) 50%, var(--pc-builder-gray-50) 100%);
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
        }

        /* ========================================================================== */
        /* HEADER */
        /* ========================================================================== */
        .pc-builder-sheet .builder-header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--pc-builder-gray-200);
            padding: 1.25rem 0;
            box-shadow: var(--pc-builder-shadow-sm);
        }

        .pc-builder-sheet .header-content {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 2rem;
        }

        .pc-builder-sheet .header-title {
            display: flex;
            align-items: flex-start;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

        .pc-builder-sheet .title-text {
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
            min-width: 0;
        }

        .pc-builder-sheet .header-title h1 {
            margin: 0;
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--pc-builder-gray-900);
            background: linear-gradient(135deg, var(--pc-builder-gray-900), var(--pc-builder-primary-blue));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .pc-builder-sheet .header-title p {
            margin: 0.25rem 0 0;
            color: var(--pc-builder-gray-600);
            font-size: 0.95rem;
            font-weight: 500;
        }

        .pc-builder-sheet .header-actions {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 0.35rem;
        }

        .pc-builder-sheet .btn-ai-builder {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            border: none;
            border-radius: 999px;
            padding: 0.55rem 1.3rem;
            background: linear-gradient(135deg, var(--pc-builder-primary-blue), var(--pc-builder-success-green));
            color: white;
            font-weight: 600;
            cursor: pointer;
            box-shadow: var(--pc-builder-shadow-sm);
            transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
        }

        .pc-builder-sheet .btn-ai-builder i {
            font-size: 1rem;
        }

        .pc-builder-sheet .btn-ai-builder:hover {
            transform: translateY(-1px);
            box-shadow: var(--pc-builder-shadow-md);
        }

        .pc-builder-sheet .btn-ai-builder:active {
            transform: translateY(0);
            box-shadow: var(--pc-builder-shadow-sm);
        }

        .pc-builder-sheet .header-actions__hint {
            font-size: 0.8rem;
            color: var(--pc-builder-gray-500);
            max-width: 240px;
            line-height: 1.4;
        }

        .pc-builder-sheet .header-progress {
            display: flex;
            flex-direction: column;
            align-items: flex-end;
            gap: 0.5rem;
            min-width: 200px;
        }

        .pc-builder-sheet .progress-bar {
            width: 100%;
            height: 6px;
            background: var(--pc-builder-gray-200);
            border-radius: 3px;
            overflow: hidden;
            position: relative;
        }

        .pc-builder-sheet .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--pc-builder-primary-blue), var(--pc-builder-success-green));
            border-radius: 3px;
            transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            width: 0%;
            position: relative;
            overflow: hidden;
        }

        .pc-builder-sheet .progress-fill::after {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
            animation: shimmer 2s infinite;
        }

        @keyframes shimmer {
            0% {
                left: -100%;
            }

            100% {
                left: 100%;
            }
        }

        .pc-builder-sheet .progress-text {
            font-size: 0.875rem;
            color: var(--pc-builder-gray-600);
            font-weight: 600;
        }

        /* ========================================================================== */
        /* ENSAMBLADOR IA (MODAL) */
        /* ========================================================================== */
        .pc-builder-sheet .ai-modal {
            position: fixed;
            inset: 0;
            display: flex;
            align-items: flex-start;
            justify-content: center;
            padding: 3rem 1.5rem;
            z-index: 2000;
        }

        .pc-builder-sheet .ai-modal[hidden] {
            display: none !important;
        }

        .pc-builder-sheet .ai-modal__backdrop {
            position: absolute;
            inset: 0;
            background: rgba(15, 23, 42, 0.58);
            backdrop-filter: blur(4px);
        }

        .pc-builder-sheet .ai-modal__dialog {
            position: relative;
            max-width: 720px;
            width: 100%;
            background: #fff;
            border-radius: var(--pc-builder-radius-xl);
            box-shadow: var(--pc-builder-shadow-xl);
            padding: 2rem;
            border: 1px solid var(--pc-builder-gray-200);
            overflow: hidden;
            max-height: calc(100vh - 4rem);
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .pc-builder-sheet .ai-modal__header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            gap: 1rem;
        }

        .pc-builder-sheet .ai-modal__title h2 {
            margin: 0;
            font-size: 1.5rem;
            color: var(--pc-builder-gray-900);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .pc-builder-sheet .ai-modal__title p {
            margin: 0.35rem 0 0;
            color: var(--pc-builder-gray-600);
            font-size: 0.95rem;
        }

        .pc-builder-sheet .ai-modal__close {
            border: none;
            background: var(--pc-builder-gray-100);
            border-radius: 50%;
            width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--pc-builder-gray-600);
            cursor: pointer;
            transition: background 0.2s ease, color 0.2s ease;
        }

        .pc-builder-sheet .ai-modal__close:hover {
            background: var(--pc-builder-gray-200);
            color: var(--pc-builder-gray-800);
        }

        .pc-builder-sheet .ai-modal__form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .pc-builder-sheet .ai-form-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 0.75rem;
        }

        .pc-builder-sheet .ai-form-grid label {
            font-weight: 600;
            color: var(--pc-builder-gray-700);
        }

        .pc-builder-sheet .ai-budget-input {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.75rem 1rem;
            border-radius: var(--pc-builder-radius-lg);
            border: 1px solid var(--pc-builder-gray-200);
            background: var(--pc-builder-gray-50);
        }

        .pc-builder-sheet .ai-budget-input span {
            font-weight: 600;
            color: var(--pc-builder-gray-500);
        }

        .pc-builder-sheet .ai-budget-input input {
            width: 100%;
            border: none;
            background: transparent;
            font-size: 1rem;
            font-weight: 600;
            color: var(--pc-builder-gray-800);
            outline: none;
        }

        .pc-builder-sheet .ai-purpose-options {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .pc-builder-sheet .ai-purpose-option {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.45rem 0.9rem;
            border-radius: 999px;
            border: 1px solid var(--pc-builder-gray-200);
            background: #fff;
            color: var(--pc-builder-gray-700);
            font-weight: 500;
            cursor: pointer;
            transition: background 0.2s ease, color 0.2s ease, border 0.2s ease;
        }

        .pc-builder-sheet .ai-purpose-option input {
            accent-color: var(--pc-builder-primary-blue);
        }

        .pc-builder-sheet .ai-purpose-option:hover {
            border-color: var(--pc-builder-primary-blue);
            color: var(--pc-builder-primary-blue);
        }

        .pc-builder-sheet .ai-form-hint {
            margin: 0;
            font-size: 0.85rem;
            color: var(--pc-builder-gray-500);
        }

        .pc-builder-sheet .ai-modal__button {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            border-radius: 999px;
            border: none;
            font-weight: 600;
            cursor: pointer;
            padding: 0.65rem 1.35rem;
            transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
        }

        .pc-builder-sheet .ai-modal__button--primary {
            background: linear-gradient(135deg, var(--pc-builder-primary-blue), var(--pc-builder-primary-blue-dark));
            color: #fff;
            box-shadow: var(--pc-builder-shadow-sm);
        }

        .pc-builder-sheet .ai-modal__button--primary:hover {
            transform: translateY(-1px);
            box-shadow: var(--pc-builder-shadow-md);
        }

        .pc-builder-sheet .ai-modal__button--secondary {
            background: var(--pc-builder-primary-blue);
            color: #fff;
        }

        .pc-builder-sheet .ai-modal__button--secondary:hover {
            background: var(--pc-builder-primary-blue-dark);
        }

        .pc-builder-sheet .ai-modal__button--ghost {
            background: transparent;
            color: var(--pc-builder-gray-600);
            border: 1px solid var(--pc-builder-gray-300);
        }

        .pc-builder-sheet .ai-modal__button--ghost:hover {
            color: var(--pc-builder-primary-blue);
            border-color: var(--pc-builder-primary-blue);
        }

        .pc-builder-sheet .ai-modal__button:disabled {
            opacity: 0.6;
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }

        .pc-builder-sheet .ai-modal__status {
            min-height: 0;
        }

        .pc-builder-sheet .ai-status-message {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.75rem 1rem;
            border-radius: var(--pc-builder-radius-lg);
            font-size: 0.95rem;
        }

        .pc-builder-sheet .ai-status-message i {
            font-size: 1.1rem;
        }

        .pc-builder-sheet .ai-status-message.is-loading {
            background: var(--pc-builder-gray-100);
            color: var(--pc-builder-gray-600);
        }

        .pc-builder-sheet .ai-status-message.is-success {
            background: rgba(5, 150, 105, 0.12);
            color: var(--pc-builder-success-green-dark);
        }

        .pc-builder-sheet .ai-status-message.is-warning {
            background: rgba(217, 119, 6, 0.12);
            color: var(--pc-builder-warning-orange-dark);
        }

        .pc-builder-sheet .ai-status-message.is-error {
            background: rgba(220, 38, 38, 0.12);
            color: var(--pc-builder-error-red-dark);
        }

        .pc-builder-sheet .ai-modal__results {
            border: 1px solid var(--pc-builder-gray-200);
            border-radius: var(--pc-builder-radius-lg);
            padding: 1rem 1.25rem;
            background: var(--pc-builder-gray-50);
            max-height: 320px;
            overflow-y: auto;
        }

        .pc-builder-sheet .ai-results-placeholder {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 0.75rem;
            color: var(--pc-builder-gray-500);
            padding: 1.5rem 0;
        }

        .pc-builder-sheet .ai-results-placeholder i {
            font-size: 1.7rem;
        }

        .pc-builder-sheet .ai-results-summary {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 0.75rem;
            margin-bottom: 1rem;
        }

        .pc-builder-sheet .ai-results-summary div {
            background: #fff;
            border-radius: var(--pc-builder-radius-md);
            padding: 0.75rem;
            border: 1px solid var(--pc-builder-gray-200);
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }

        .pc-builder-sheet .ai-results-summary span {
            font-size: 0.78rem;
            color: var(--pc-builder-gray-500);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .pc-builder-sheet .ai-results-summary strong {
            font-size: 1rem;
            color: var(--pc-builder-gray-800);
        }

        .pc-builder-sheet .ai-results-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .pc-builder-sheet .ai-result-item {
            background: #fff;
            border-radius: var(--pc-builder-radius-lg);
            padding: 0.85rem 1rem;
            border: 1px solid var(--pc-builder-gray-200);
            display: grid;
            gap: 0.5rem;
        }

        .pc-builder-sheet .ai-result-item.is-missing {
            border-color: rgba(217, 119, 6, 0.45);
        }

        .pc-builder-sheet .ai-result-item.is-applied {
            border-color: rgba(5, 150, 105, 0.45);
        }

        .pc-builder-sheet .ai-result-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 0.5rem;
        }

        .pc-builder-sheet .ai-result-group {
            font-weight: 600;
            color: var(--pc-builder-gray-700);
            font-size: 0.9rem;
        }

        .pc-builder-sheet .ai-availability {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            font-size: 0.8rem;
            border-radius: 999px;
            padding: 0.25rem 0.75rem;
        }

        .pc-builder-sheet .ai-availability.is-ready {
            background: rgba(5, 150, 105, 0.15);
            color: var(--pc-builder-success-green-dark);
        }

        .pc-builder-sheet .ai-availability.is-pending {
            background: rgba(217, 119, 6, 0.15);
            color: var(--pc-builder-warning-orange-dark);
        }

        .pc-builder-sheet .ai-result-name {
            margin: 0;
            font-size: 1.02rem;
            font-weight: 600;
            color: var(--pc-builder-gray-900);
        }

        .pc-builder-sheet .ai-result-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--pc-builder-gray-600);
        }

        .pc-builder-sheet .ai-result-reason {
            margin: 0;
            font-size: 0.85rem;
            color: var(--pc-builder-gray-500);
        }

        .pc-builder-sheet .ai-modal__footer {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 0.75rem;
        }

        .pc-builder-sheet .ai-modal__provider {
            font-size: 0.8rem;
            color: var(--pc-builder-gray-500);
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }

        .pc-builder-sheet .ai-modal__provider strong {
            color: var(--pc-builder-gray-700);
        }

        .pc-builder-sheet .ai-modal__actions {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
        }

        .pc-builder-sheet .ai-warnings-list {
            margin: 1rem 0 0;
            padding: 0.75rem 1rem;
            border-radius: var(--pc-builder-radius-md);
            background: rgba(217, 119, 6, 0.12);
            color: var(--pc-builder-warning-orange-dark);
            list-style: disc;
            padding-left: 2rem;
        }

        /* ========================================================================== */
        /* LAYOUT PRINCIPAL */
        /* ========================================================================== */
        .pc-builder-sheet .builder-container {
            margin: 0 auto;
            padding: 2rem;
            display: grid;
            grid-template-columns: 1fr 400px;
            gap: 2rem;
            align-items: start;
        }

        /* ========================================================================== */
        /* PANEL PRINCIPAL DE COMPONENTES */
        /* ========================================================================== */
        .components-main {
            background: white;
            border-radius: var(--pc-builder-radius-xl);
            box-shadow: var(--pc-builder-shadow-md);
            overflow: hidden;
            border: 1px solid var(--pc-builder-gray-200);
        }

        .components-sections {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.25rem 1.25rem;
            padding: 2rem;
        }

        /* Sección de Componente */
        .pc-builder-sheet .component-section {
            border: 1px solid var(--pc-builder-gray-200);
            border-radius: var(--pc-builder-radius-lg);
            background: white;
            overflow: hidden;
            transition: var(--pc-builder-transition);
        }

        .pc-builder-sheet .component-section:hover {
            border-color: var(--pc-builder-gray-300);
            box-shadow: var(--pc-builder-shadow-sm);
        }

        .pc-builder-sheet .section-header {
            padding: 1.5rem;
            background: linear-gradient(135deg, var(--pc-builder-gray-50), var(--pc-builder-gray-100));
            border-bottom: 1px solid var(--pc-builder-gray-200);
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            gap: 1rem;
        }

        .pc-builder-sheet .section-title {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            flex: 1;
        }

        .pc-builder-sheet .section-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--pc-builder-radius-md);
            background: linear-gradient(135deg, var(--pc-builder-primary-blue), var(--pc-builder-primary-blue-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.25rem;
            flex-shrink: 0;
            box-shadow: var(--pc-builder-shadow-sm);
        }

        .pc-builder-sheet .section-text {
            flex: 1;
        }

        .pc-builder-sheet .section-text h3 {
            margin: 0;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--pc-builder-gray-900);
            line-height: 1.3;
        }

        .pc-builder-sheet .section-description {
            margin: 0.5rem 0 0;
            color: var(--pc-builder-gray-600);
            font-size: 0.9rem;
            line-height: 1.5;
            max-width: 500px;
        }

        .pc-builder-sheet .section-meta {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            align-items: flex-end;
            flex-shrink: 0;
        }

        /* Toggle de sección (acordeón) */
        .pc-builder-sheet .section-toggle {
            background: transparent;
            border: none;
            color: var(--pc-builder-gray-600);
            cursor: pointer;
            padding: 0.25rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 6px;
        }

        .pc-builder-sheet .section-toggle i {
            transition: transform 0.25s ease;
        }

        .pc-builder-sheet .component-section.is-collapsed {
            /* reducir márgenes y mostrar la vista compacta */
            padding: 0;
            border: none;
            background: transparent;
            box-shadow: none;
        }

        .pc-builder-sheet .component-section.is-collapsed .section-header {
            display: none;
        }

        .pc-builder-sheet .component-section.is-collapsed .component-cards-grid {
            display: none !important;
        }

        .pc-builder-sheet .component-section.is-collapsed .section-compact {
            display: block !important;
        }

        .pc-builder-sheet .component-section .section-compact {
            padding: 1rem;
            display: flex;
            align-items: stretch;
            justify-content: center;
        }

        .pc-builder-sheet .section-compact .component-card {
            width: 100%;
            max-width: 100%;
            margin: 0;
            height: 420px;
        }

        .pc-builder-sheet .section-compact .component-card .componente-content img {
            height: 160px;
            /* ligeeeramente mayor para equilibrar header oculto */
        }

        .pc-builder-sheet .component-section.is-collapsed .section-toggle i {
            transform: rotate(180deg);
        }

        .pc-builder-sheet .section-badge {
            padding: 0.5rem 1rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            border: 1px solid transparent;
        }

        .badge-required {
            background: var(--pc-builder-error-red);
            color: white;
            border-color: var(--pc-builder-error-red-dark);
        }

        .badge-optional {
            background: var(--pc-builder-gray-200);
            color: var(--pc-builder-gray-700);
            border-color: var(--pc-builder-gray-300);
        }

        .pc-builder-sheet .section-limit {
            font-size: 0.875rem;
            color: var(--pc-builder-gray-600);
            font-weight: 600;
        }

        /* Grid de Tarjetas */
        .pc-builder-sheet .component-cards-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 1.25rem;
            padding: 1.5rem;
        }

        .pc-builder-sheet .component-card {
            flex: 1 1 320px;
            border: 1px solid var(--pc-builder-gray-200);
            border-radius: var(--pc-builder-radius-lg);
            padding: 1.5rem;
            background: white;
            transition: var(--pc-builder-transition);
            position: relative;
            cursor: pointer;
            min-height: 420px;
            display: flex;
            flex-direction: column;
        }

        .pc-builder-sheet .component-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--pc-builder-primary-blue), var(--pc-builder-success-green));
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }

        .pc-builder-sheet .component-card:hover::before {
            transform: scaleX(1);
        }

        .pc-builder-sheet .component-card:hover {
            border-color: var(--pc-builder-primary-blue);
            box-shadow: var(--pc-builder-shadow-lg);
            transform: translateY(-4px);
        }

        .pc-builder-sheet .component-card.is-selected {
            border-color: var(--pc-builder-success-green);
            background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
            box-shadow: var(--pc-builder-shadow-md);
        }

        .pc-builder-sheet .component-card.is-selected::before {
            transform: scaleX(1);
            background: var(--pc-builder-success-green);
        }

        .pc-builder-sheet .component-card.filtered-out {
            opacity: 0.5;
            pointer-events: none;
            filter: grayscale(1);
            transform: none !important;
        }



        /* Si una tarjeta es both 'featured' y 'selected', asegurar estado de seleccionado (verde)
           para que el estilo de 'featured' (azul) no lo sobreescriba visualmente. */
        .pc-builder-sheet .component-card.is-featured.is-selected,
        .pc-builder-sheet .component-card.is-selected.is-featured {
            border-color: var(--pc-builder-success-green);
            background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
            box-shadow: var(--pc-builder-shadow-md);
        }

        /* Forzar color del botón dentro de una tarjeta seleccionada */
        .pc-builder-sheet .component-card.is-selected .btn-select {
            background: var(--pc-builder-success-green) !important;
            color: white !important;
        }

        /* Estilos del nuevo bloque compacto de componente */
        .componente {
            border: 2px solid rgba(0, 0, 0, 0.03);
            border-radius: 10px;
            overflow: hidden;
            background: linear-gradient(180deg, #ffffff, #fbfeff);
            text-align: center;
            padding: 0.25rem;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .componente-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: var(--pc-builder-primary-blue);
            color: white;
            padding: 0.5rem 0.75rem;
            border-top-left-radius: 8px;
            border-top-right-radius: 8px;
        }

        .componente-categoria {
            font-weight: 600;
        }

        .componente-posicion {
            background: rgba(255, 255, 255, 0.15);
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
        }

        .componente-content {
            flex-grow: 1;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .componente-content img {
            max-width: 100%;
            height: 140px;
            object-fit: contain;
            display: block;
            margin: 0.75rem auto;
        }

        .componente-footer {
            background: rgba(0, 0, 0, 0.03);
            padding: 0.5rem 0.75rem;
            font-weight: 700;
            color: var(--pc-builder-gray-900);
            border-bottom-left-radius: 8px;
            border-bottom-right-radius: 8px;
        }

        .componente-actions {
            margin-top: 0.5rem;
        }

        .componente .btn-select {
            padding: 0.4rem 0.8rem;
            font-size: 0.9rem;
        }

        .card-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            margin-bottom: 1rem;
        }

        .product-brand {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--pc-builder-gray-600);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            background: var(--pc-builder-gray-100);
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
        }

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

        .card-content {
            display: flex;
            gap: 1rem;
            margin-bottom: 1rem;
        }

        .product-image {
            width: 80px;
            height: 80px;
            border-radius: var(--pc-builder-radius-md);
            background: linear-gradient(135deg, var(--pc-builder-gray-100), var(--pc-builder-gray-200));
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            overflow: hidden;
            border: 1px solid var(--pc-builder-gray-200);
        }

        .product-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .pc-builder-sheet .component-card:hover .product-image img {
            transform: scale(1.05);
        }

        .image-placeholder {
            color: var(--pc-builder-gray-400);
            font-size: 1.5rem;
        }

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

        .product-name {
            margin: 0 0 0.5rem;
            font-size: 1rem;
            font-weight: 700;
            color: var(--pc-builder-gray-900);
            line-height: 1.3;
        }

        .product-category {
            margin: 0 0 0.5rem;
            font-size: 0.75rem;
            color: var(--pc-builder-primary-blue);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .product-description {
            margin: 0 0 0.75rem;
            font-size: 0.875rem;
            color: var(--pc-builder-gray-600);
            line-height: 1.5;
        }

        .product-specs {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .spec-tag {
            padding: 0.375rem 0.75rem;
            background: var(--pc-builder-gray-100);
            color: var(--pc-builder-gray-700);
            border-radius: var(--pc-builder-radius-sm);
            font-size: 0.75rem;
            font-weight: 600;
            border: 1px solid var(--pc-builder-gray-200);
        }

        .card-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 1rem;
            border-top: 1px solid var(--pc-builder-gray-200);
        }

        .product-pricing {
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }

        .price-soles {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--pc-builder-gray-900);
        }

        .price-usd {
            font-size: 0.875rem;
            color: var(--pc-builder-gray-600);
            font-weight: 600;
        }

        .product-stock {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.875rem;
            font-weight: 700;
            padding: 0.5rem 0.75rem;
            border-radius: var(--pc-builder-radius-sm);
        }

        .in-stock {
            background: var(--pc-builder-success-green);
            color: white;
        }

        .out-of-stock {
            background: var(--pc-builder-warning-orange);
            color: white;
        }

        .selection-badge {
            position: absolute;
            top: 1rem;
            right: 1rem;
            display: none;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 1rem;
            border-radius: 9999px;
            background: var(--pc-builder-success-green);
            color: white;
            font-weight: 700;
            font-size: 0.75rem;
            box-shadow: var(--pc-builder-shadow-sm);
        }

        .pc-builder-sheet .component-card.is-selected .selection-badge {
            display: block;
            animation: bounceIn 0.5s ease;
        }

        @keyframes bounceIn {
            0% {
                transform: scale(0);
                opacity: 0;
            }

            50% {
                transform: scale(1.1);
            }

            100% {
                transform: scale(1);
                opacity: 1;
            }
        }

        /* ========================================================================== */
        /* BOTONES */
        /* ========================================================================== */
        .btn-select {
            padding: 0.625rem 1.25rem;
            background: var(--pc-builder-primary-blue);
            border: none;
            border-radius: var(--pc-builder-radius-md);
            font-size: 0.875rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--pc-builder-transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            box-shadow: var(--pc-builder-shadow-sm);
        }

        .btn-select:hover {
            background: var(--pc-builder-primary-blue-dark);
            transform: translateY(-2px);
            box-shadow: var(--pc-builder-shadow-md);
        }

        .btn-select:active {
            transform: translateY(0);
        }

        .pc-builder-sheet .component-card.is-selected .btn-select {
            background: var(--pc-builder-success-green);
        }

        .pc-builder-sheet .component-card.is-selected .btn-select:hover {
            background: var(--pc-builder-success-green-dark);
        }

        /* ========================================================================== */
        /* SIDEBAR */
        /* ========================================================================== */
        .summary-sidebar {
            position: sticky;
            top: 2rem;
        }

        .sidebar-sticky {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .summary-card,
        .detail-card,
        .totals-card,
        .compatibility-card,
        .actions-card {
            background: white;
            border-radius: var(--pc-builder-radius-xl);
            padding: 1.5rem;
            box-shadow: var(--pc-builder-shadow-md);
            border: 1px solid var(--pc-builder-gray-200);
        }

        .summary-card .card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1rem;
            padding: 0;
            background: none;
            border: none;
        }

        .summary-card h3 {
            margin: 0;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--pc-builder-gray-900);
        }

        .items-count {
            font-size: 0.875rem;
            color: var(--pc-builder-gray-600);
            font-weight: 600;
            background: var(--pc-builder-gray-100);
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
        }

        /* Componentes Seleccionados */
        .selected-components {
            max-height: 300px;
            overflow-y: auto;
        }

        .selected-component {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem;
            border: 1px solid var(--pc-builder-gray-200);
            border-radius: var(--pc-builder-radius-md);
            margin-bottom: 0.75rem;
            background: var(--pc-builder-gray-50);
            transition: var(--pc-builder-transition);
        }

        .selected-component:hover {
            border-color: var(--pc-builder-gray-300);
            background: var(--pc-builder-gray-100);
        }

        .selected-component:last-child {
            margin-bottom: 0;
        }

        .pc-builder-sheet .component-info {
            flex: 1;
        }

        .pc-builder-sheet .component-name {
            font-weight: 600;
            color: var(--pc-builder-gray-900);
            margin-bottom: 0.25rem;
            font-size: 0.9rem;
            line-height: 1.3;
        }

        .pc-builder-sheet .component-brand {
            font-size: 0.75rem;
            color: var(--pc-builder-gray-600);
            font-weight: 500;
        }

        .pc-builder-sheet .component-price {
            font-weight: 700;
            color: var(--pc-builder-gray-900);
            font-size: 0.9rem;
        }

        .remove-component {
            background: none;
            border: none;
            color: var(--pc-builder-error-red);
            cursor: pointer;
            padding: 0.5rem;
            border-radius: var(--pc-builder-radius-sm);
            transition: var(--pc-builder-transition);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .remove-component:hover {
            background: var(--pc-builder-error-red);
            color: white;
            transform: scale(1.1);
        }

        .empty-selection {
            text-align: center;
            padding: 3rem 1rem;
            color: var(--pc-builder-gray-500);
        }

        .empty-selection i {
            font-size: 3rem;
            margin-bottom: 1rem;
            opacity: 0.5;
        }

        .empty-selection p {
            margin: 0;
            font-size: 0.95rem;
        }

        /* Panel de Detalles */
        .detail-card {
            min-height: 200px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .detail-placeholder {
            text-align: center;
            color: var(--pc-builder-gray-500);
            padding: 2rem;
        }

        .detail-placeholder i {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            opacity: 0.5;
        }

        .detail-placeholder p {
            margin: 0;
            font-size: 0.95rem;
        }

        /* Totales */
        .totals-card h4 {
            margin: 0 0 1.5rem;
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--pc-builder-gray-900);
        }

        .total-rows {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .total-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0.75rem 0;
        }

        .total-row:first-child {
            border-bottom: 2px solid var(--pc-builder-gray-200);
            padding-bottom: 1rem;
        }

        .total-row span {
            font-weight: 600;
            color: var(--pc-builder-gray-700);
        }

        .total-row strong {
            font-size: 1.25rem;
            color: var(--pc-builder-gray-900);
            font-weight: 800;
        }

        /* Compatibilidad */
        .compatibility-card h4 {
            margin: 0 0 1rem;
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--pc-builder-gray-900);
        }

        .status-indicator {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 1rem;
            border-radius: var(--pc-builder-radius-md);
            font-weight: 600;
            border: 1px solid transparent;
        }

        .status-pending {
            background: var(--pc-builder-gray-100);
            color: var(--pc-builder-gray-600);
            border-color: var(--pc-builder-gray-200);
        }

        .status-success {
            background: #dcfce7;
            color: var(--pc-builder-success-green);
            border-color: #bbf7d0;
        }

        .status-warning {
            background: #fef3c7;
            color: var(--pc-builder-warning-orange);
            border-color: #fde68a;
        }

        .status-error {
            background: #fee2e2;
            color: var(--pc-builder-error-red);
            border-color: #fecaca;
        }

        /* Acciones */
        .btn-checkout {
            width: 100%;
            padding: 1.25rem 1.5rem;
            background: linear-gradient(135deg, var(--pc-builder-success-green), var(--pc-builder-success-green-dark));
            color: white;
            border: none;
            border-radius: var(--pc-builder-radius-lg);
            font-size: 1.125rem;
            font-weight: 700;
            cursor: pointer;
            transition: var(--pc-builder-transition);
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            justify-content: center;
            box-shadow: var(--pc-builder-shadow-md);
        }

        .btn-checkout:hover:not(:disabled) {
            transform: translateY(-2px);
            box-shadow: var(--pc-builder-shadow-lg);
        }

        .btn-checkout:disabled {
            background: var(--pc-builder-gray-400);
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }

        .secondary-actions {
            display: flex;
            gap: 0.75rem;
        }

        .btn-action {
            padding: 0.875rem 1rem;
            background: white;
            color: var(--pc-builder-gray-700);
            border: 1px solid var(--pc-builder-gray-300);
            border-radius: var(--pc-builder-radius-md);
            font-size: 0.875rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--pc-builder-transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            flex: 1;
            justify-content: center;
        }

        .btn-action:hover {
            background: var(--pc-builder-gray-50);
            border-color: var(--pc-builder-gray-400);
            transform: translateY(-1px);
        }

        .btn-danger {
            color: var(--pc-builder-error-red);
            border-color: var(--pc-builder-error-red);
        }

        .btn-danger:hover {
            background: var(--pc-builder-error-red);
            color: white;
        }

        /* Estados Vacíos */
        .empty-state {
            grid-column: 1 / -1;
            text-align: center;
            padding: 3rem 1rem;
            color: var(--pc-builder-gray-500);
        }

        .empty-state i {
            font-size: 3rem;
            margin-bottom: 1rem;
            opacity: 0.5;
        }

        .empty-state p {
            margin: 0;
            font-size: 1rem;
        }

        .empty-filter-state {
            display: none;
            padding: 1.5rem;
        }

        .empty-filter-state.is-visible {
            display: block;
        }

        .empty-filter-card {
            border-radius: var(--pc-builder-radius-lg);
            border: 2px dashed var(--pc-builder-gray-300);
            padding: 2rem;
            background: var(--pc-builder-gray-50);
            text-align: center;
        }

        .empty-filter-card h4 {
            margin: 0 0 0.75rem;
            color: var(--pc-builder-gray-700);
            font-size: 1.125rem;
        }

        .empty-filter-card p {
            margin: 0 0 1.5rem;
            color: var(--pc-builder-gray-600);
            font-size: 0.95rem;
            line-height: 1.5;
        }

        .btn-clear-section {
            padding: 0.75rem 1.5rem;
            background: rgba(37, 99, 235, 0.1);
            color: #1d4ed8;
            border: 1px solid rgba(37, 99, 235, 0.3);
            border-radius: var(--pc-builder-radius-md);
            font-size: 0.875rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--pc-builder-transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-clear-section:hover {
            background: rgba(37, 99, 235, 0.2);
            transform: translateY(-1px);
        }

        /* ========================================================================== */
        /* RESPONSIVE */
        /* ========================================================================== */
        @media (max-width: 1200px) {
            .pc-builder-sheet .builder-container {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .summary-sidebar {
                position: static;
            }

            .components-sections {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }

            .pc-builder-sheet .component-cards-grid {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            }
        }

        @media (max-width: 768px) {
            .components-sections {
                grid-template-columns: 1fr;
            }

            .header-content {
                flex-direction: column;
                gap: 1rem;
                text-align: center;
                padding: 0 1rem;
            }

            .header-title {
                flex-direction: column;
                align-items: center;
                text-align: center;
                gap: 1rem;
            }

            .header-actions {
                align-items: center;
            }

            .header-actions__hint {
                max-width: 100%;
            }

            .header-progress {
                align-items: center;
                width: 100%;
            }

            .pc-builder-sheet .progress-bar {
                width: 100%;
            }

            .pc-builder-sheet .builder-container {
                padding: 1rem;
                gap: 1rem;
            }

            .components-sections {
                padding: 1rem;
                gap: 1rem;
            }

            .pc-builder-sheet .section-header {
                flex-direction: column;
                gap: 1rem;
                padding: 1.25rem;
            }

            .pc-builder-sheet .section-meta {
                align-items: flex-start;
                width: 100%;
                flex-direction: row;
                justify-content: space-between;
            }

            .pc-builder-sheet .component-cards-grid {
                grid-template-columns: 1fr;
                padding: 1rem;
                gap: 1rem;
            }

            .card-content {
                flex-direction: column;
                text-align: center;
                gap: 1rem;
            }

            .product-image {
                align-self: center;
            }

            .secondary-actions {
                flex-direction: column;
            }

            .sidebar-sticky {
                gap: 1rem;
            }

            .summary-card,
            .detail-card,
            .totals-card,
            .compatibility-card,
            .actions-card {
                padding: 1.25rem;
            }

            .pc-builder-sheet .ai-modal {
                padding: 2rem 1rem;
            }

            .pc-builder-sheet .ai-modal__dialog {
                padding: 1.5rem;
                max-height: calc(100vh - 2rem);
            }

            .pc-builder-sheet .ai-modal__footer {
                flex-direction: column;
                align-items: stretch;
                gap: 1rem;
            }

            .pc-builder-sheet .ai-modal__provider {
                align-items: center;
                text-align: center;
            }

            .pc-builder-sheet .ai-modal__actions {
                justify-content: center;
            }
        }

        @media (max-width: 480px) {
            .header-title h1 {
                font-size: 1.5rem;
            }

            .btn-ai-builder {
                width: 100%;
                justify-content: center;
            }

            .pc-builder-sheet .component-cards-grid {
                grid-template-columns: 1fr;
            }

            .pc-builder-sheet .component-card {
                padding: 1.25rem;
            }

            .pc-builder-sheet .ai-modal__dialog {
                padding: 1.25rem;
            }

            .pc-builder-sheet .ai-purpose-options {
                flex-direction: column;
                align-items: stretch;
            }

            .pc-builder-sheet .ai-purpose-option {
                width: 100%;
                justify-content: center;
            }

            .pc-builder-sheet .ai-results-summary {
                grid-template-columns: 1fr;
            }

            .pc-builder-sheet .ai-modal__actions {
                flex-direction: column;
            }

            .pc-builder-sheet .ai-modal__button {
                width: 100%;
            }
        }

        /* ========================================================================== */
        /* ANIMACIONES Y ESTADOS */
        /* ========================================================================== */
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }

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

        .pc-builder-sheet .component-card {
            animation: fadeIn 0.5s ease-out;
        }

        .loading {
            opacity: 0.6;
            pointer-events: none;
            position: relative;
        }

        .loading::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 24px;
            height: 24px;
            border: 3px solid var(--pc-builder-gray-300);
            border-top: 3px solid var(--pc-builder-primary-blue);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

        @keyframes spin {
            0% {
                transform: translate(-50%, -50%) rotate(0deg);
            }

            100% {
                transform: translate(-50%, -50%) rotate(360deg);
            }
        }

        /* Scroll suave */
        html {
            scroll-behavior: smooth;
        }

        /* Personalización del scrollbar */
        .selected-components::-webkit-scrollbar {
            width: 6px;
        }

        .selected-components::-webkit-scrollbar-track {
            background: var(--pc-builder-gray-100);
            border-radius: 3px;
        }

        .selected-components::-webkit-scrollbar-thumb {
            background: var(--pc-builder-gray-400);
            border-radius: 3px;
        }

        .selected-components::-webkit-scrollbar-thumb:hover {
            background: var(--pc-builder-gray-500);
        }

            .picker-modal[hidden] {
                display: none !important;
            }

            .picker-modal {
                position: fixed;
                inset: 0;
                z-index: 1000;
            }

            .picker-overlay {
                position: absolute;
                inset: 0;
                background: rgba(0, 0, 0, 0.45);
                backdrop-filter: blur(2px);
            }

            .picker-dialog {
                position: relative;
                margin: 4vh auto;
                max-width: 1100px;
                width: calc(100% - 2rem);
                background: #fff;
                border-radius: 12px;
                box-shadow: var(--pc-builder-shadow-xl);
                overflow: hidden;
                display: flex;
                flex-direction: column;
            }

            .picker-header {
                display: flex;
                align-items: center;
                justify-content: space-between;
                padding: 0.75rem 1rem;
                border-bottom: 1px solid var(--pc-builder-gray-200);
                background: var(--pc-builder-gray-50);
            }

            .picker-header h3 {
                margin: 0;
                font-size: 1.1rem;
                color: var(--pc-builder-gray-900);
            }

            .picker-close {
                background: transparent;
                border: 1px solid var(--pc-builder-gray-300);
                border-radius: 8px;
                padding: 0.4rem 0.6rem;
                cursor: pointer;
                color: var(--pc-builder-gray-700);
            }

            .picker-body {
                padding: 1rem;
                max-height: 72vh;
                overflow-y: auto;
                display: grid;
                grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
                gap: 1rem;
            }