/**
 * Busca Inteligente AI - Estilos principais
 * 
 * @package BuscaInteligenteAI
 * @version 1.0.0
 */

/* ===== VARIÁVEIS CSS ===== */
:root {
    --busca-ai-primary: #667eea;
    --busca-ai-secondary: #764ba2;
    --busca-ai-success: #10b981;
    --busca-ai-warning: #f59e0b;
    --busca-ai-error: #ef4444;
    --busca-ai-text: #374151;
    --busca-ai-text-light: #6b7280;
    --busca-ai-bg: #ffffff;
    --busca-ai-bg-light: #f9fafb;
    --busca-ai-border: #e5e7eb;
    --busca-ai-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --busca-ai-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --busca-ai-radius: 8px;
    --busca-ai-radius-lg: 12px;
    --busca-ai-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --busca-ai-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

/* ===== RESET E BASE ===== */
.busca-inteligente-ai-container {
    font-family: var(--busca-ai-font-family);
    line-height: 1.6;
    color: var(--busca-ai-text);
    box-sizing: border-box;
}

.busca-inteligente-ai-container *,
.busca-inteligente-ai-container *::before,
.busca-inteligente-ai-container *::after {
    box-sizing: inherit;
}

/* ===== CONTAINER PRINCIPAL ===== */
.busca-inteligente-ai-container {
    max-width: 800px;
    margin: 20px auto;
    padding: 0 16px;
}

.busca-inteligente-ai-container.align-left {
    margin-left: 0;
    margin-right: auto;
}

.busca-inteligente-ai-container.align-right {
    margin-left: auto;
    margin-right: 0;
}

/* ===== FORMULÁRIO DE BUSCA ===== */
.busca-ai-form-container {
    margin-bottom: 24px;
}

.busca-ai-form {
    width: 100%;
}

.busca-ai-input-group {
    position: relative;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--busca-ai-primary), var(--busca-ai-secondary));
    border-radius: var(--busca-ai-radius-lg);
    padding: 2px;
    box-shadow: var(--busca-ai-shadow-lg);
    transition: var(--busca-ai-transition);
}

.busca-ai-input-group:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.busca-ai-input-group:focus-within {
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1), var(--busca-ai-shadow-lg);
}

.busca-ai-input-container {
    display: flex;
    align-items: center;
    background: var(--busca-ai-bg);
    border-radius: calc(var(--busca-ai-radius-lg) - 2px);
    flex: 1;
    overflow: hidden;
}

.busca-ai-input {
    flex: 1;
    padding: 16px 20px;
    border: none;
    outline: none;
    font-size: 16px;
    font-weight: 400;
    color: var(--busca-ai-text);
    background: transparent;
    transition: var(--busca-ai-transition);
}

.busca-ai-input::placeholder {
    color: var(--busca-ai-text-light);
    opacity: 1;
}

.busca-ai-input:focus::placeholder {
    opacity: 0.5;
}

/* Botão de voz */
.busca-ai-voice-btn {
    padding: 12px;
    border: none;
    background: transparent;
    color: var(--busca-ai-text-light);
    cursor: pointer;
    border-radius: var(--busca-ai-radius);
    transition: var(--busca-ai-transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.busca-ai-voice-btn:hover {
    background: var(--busca-ai-bg-light);
    color: var(--busca-ai-primary);
}

.busca-ai-voice-btn.active {
    background: var(--busca-ai-primary);
    color: white;
    animation: pulse 2s infinite;
}

/* Botão de submit */
.busca-ai-submit-btn {
    padding: 16px 24px;
    border: none;
    background: linear-gradient(135deg, var(--busca-ai-primary), var(--busca-ai-secondary));
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    border-radius: 0 calc(var(--busca-ai-radius-lg) - 2px) calc(var(--busca-ai-radius-lg) - 2px) 0;
    transition: var(--busca-ai-transition);
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 120px;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.busca-ai-submit-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;
}

.busca-ai-submit-btn:hover::before {
    left: 100%;
}

.busca-ai-submit-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.busca-ai-submit-btn:active {
    transform: translateY(0);
}

.busca-ai-submit-btn.loading .btn-text,
.busca-ai-submit-btn.loading .btn-icon {
    opacity: 0;
}

.busca-ai-submit-btn.loading .btn-loading {
    display: block !important;
}

/* ===== SUGESTÕES ===== */
.busca-ai-suggestions {
    margin-bottom: 20px;
    padding: 16px;
    background: var(--busca-ai-bg-light);
    border-radius: var(--busca-ai-radius);
    border: 1px solid var(--busca-ai-border);
}

.suggestions-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--busca-ai-text-light);
    margin-bottom: 12px;
}

.suggestions-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.suggestion-item {
    padding: 8px 16px;
    border: 1px solid var(--busca-ai-border);
    background: var(--busca-ai-bg);
    color: var(--busca-ai-text);
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    transition: var(--busca-ai-transition);
}

.suggestion-item:hover {
    background: var(--busca-ai-primary);
    color: white;
    border-color: var(--busca-ai-primary);
    transform: translateY(-1px);
}

/* ===== CONTAINER DE RESULTADOS ===== */
.busca-ai-results {
    min-height: 100px;
}

/* ===== CARD DE PRODUTO ===== */
.busca-ai-product-card {
    background: var(--busca-ai-bg);
    border-radius: var(--busca-ai-radius-lg);
    box-shadow: var(--busca-ai-shadow-lg);
    overflow: hidden;
    transition: var(--busca-ai-transition);
    margin-bottom: 24px;
    border: 1px solid var(--busca-ai-border);
}

.busca-ai-product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

/* Imagem do produto */
.product-image-container {
    position: relative;
    width: 100%;
    height: 280px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    overflow: hidden;
}

.product-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: var(--busca-ai-transition);
}

.product-image:hover {
    transform: scale(1.05);
}

/* Badges */
.product-badges {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--busca-ai-shadow);
    backdrop-filter: blur(10px);
}

.badge-verified {
    background: rgba(59, 130, 246, 0.9);
    color: white;
}

.badge-discount {
    background: rgba(239, 68, 68, 0.9);
    color: white;
}

.badge-quality {
    background: rgba(16, 185, 129, 0.9);
    color: white;
}

.badge-popular {
    background: rgba(245, 158, 11, 0.9);
    color: white;
}

/* Indicador de urgência */
.urgency-indicator {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(239, 68, 68, 0.9);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    animation: pulse 2s infinite;
}

/* Detalhes do produto */
.product-details {
    padding: 24px;
}

.product-name {
    font-size: 22px;
    font-weight: 700;
    color: var(--busca-ai-text);
    margin: 0 0 16px 0;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Avaliação */
.product-rating {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.stars {
    display: flex;
    align-items: center;
    gap: 2px;
}

.star {
    color: #fbbf24;
    font-size: 18px;
}

.star.empty {
    color: #e5e7eb;
}

.reviews-count {
    color: var(--busca-ai-text-light);
    font-size: 14px;
    font-weight: 500;
}

/* Preço */
.product-price {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.current-price {
    font-size: 32px;
    font-weight: 800;
    color: var(--busca-ai-success);
}

.old-price {
    font-size: 20px;
    color: var(--busca-ai-text-light);
    text-decoration: line-through;
    font-weight: 500;
}

.discount-badge {
    background: var(--busca-ai-error);
    color: white;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
}

/* Justificativa */
.product-justification {
    background: linear-gradient(135deg, #e0f2fe 0%, #f3e5f5 100%);
    padding: 20px;
    border-radius: var(--busca-ai-radius);
    margin-bottom: 20px;
    border-left: 4px solid var(--busca-ai-primary);
    font-style: italic;
    color: var(--busca-ai-text);
    line-height: 1.6;
    position: relative;
}

.product-justification::before {
    content: '"';
    position: absolute;
    top: 10px;
    left: 10px;
    font-size: 24px;
    color: var(--busca-ai-primary);
    opacity: 0.5;
}

/* Prova social */
.social-proof {
    background: var(--busca-ai-bg-light);
    padding: 16px;
    border-radius: var(--busca-ai-radius);
    margin-bottom: 16px;
    border: 1px solid var(--busca-ai-border);
}

.social-proof p {
    margin: 0;
    font-weight: 600;
    color: var(--busca-ai-text);
}

/* Informações de entrega */
.delivery-info {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    padding: 12px 16px;
    background: var(--busca-ai-bg-light);
    border-radius: var(--busca-ai-radius);
    border: 1px solid var(--busca-ai-border);
}

.delivery-icon {
    font-size: 18px;
}

.free-shipping {
    background: var(--busca-ai-success);
    color: white;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    margin-left: auto;
}

/* Vídeo do produto */
.product-video {
    margin-bottom: 24px;
    border-radius: var(--busca-ai-radius);
    overflow: hidden;
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    background: var(--busca-ai-bg-light);
}

.product-video iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* Ações do produto */
.product-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.buy-button {
    flex: 1;
    min-width: 200px;
    background: linear-gradient(135deg, var(--busca-ai-primary), var(--busca-ai-secondary));
    color: white;
    padding: 16px 24px;
    border: none;
    border-radius: var(--busca-ai-radius);
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: var(--busca-ai-transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.buy-button::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;
}

.buy-button:hover::before {
    left: 100%;
}

.buy-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
    text-decoration: none;
    color: white;
}

.alternatives-button,
.refine-button {
    background: transparent;
    color: var(--busca-ai-primary);
    border: 2px solid var(--busca-ai-primary);
    padding: 14px 20px;
    border-radius: var(--busca-ai-radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--busca-ai-transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.alternatives-button:hover,
.refine-button:hover {
    background: var(--busca-ai-primary);
    color: white;
    transform: translateY(-1px);
}

/* Alternativas */
.alternatives-preview {
    margin-top: 24px;
    padding: 20px;
    background: var(--busca-ai-bg-light);
    border-radius: var(--busca-ai-radius);
    border: 1px solid var(--busca-ai-border);
}

.alternatives-preview h4 {
    margin: 0 0 16px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--busca-ai-text);
}

.alternatives-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.alternative-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--busca-ai-bg);
    border-radius: var(--busca-ai-radius);
    border: 1px solid var(--busca-ai-border);
    transition: var(--busca-ai-transition);
    cursor: pointer;
}

.alternative-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--busca-ai-shadow);
}

.alt-image {
    width: 50px;
    height: 50px;
    object-fit: contain;
    border-radius: 6px;
}

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

.alt-name {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--busca-ai-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.alt-price {
    display: block;
    font-size: 14px;
    font-weight: 700;
    color: var(--busca-ai-success);
}

/* Feedback */
.product-feedback {
    padding: 20px;
    background: var(--busca-ai-bg-light);
    border-radius: var(--busca-ai-radius);
    border: 1px solid var(--busca-ai-border);
    text-align: center;
}

.product-feedback p {
    margin: 0 0 12px 0;
    font-weight: 600;
    color: var(--busca-ai-text);
}

.feedback-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.feedback-btn {
    padding: 8px 16px;
    border: 1px solid var(--busca-ai-border);
    background: var(--busca-ai-bg);
    color: var(--busca-ai-text);
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    transition: var(--busca-ai-transition);
}

.feedback-btn:hover {
    background: var(--busca-ai-primary);
    color: white;
    border-color: var(--busca-ai-primary);
}

/* ===== PAINEL DE REFINAMENTO ===== */
.busca-ai-refinement {
    background: var(--busca-ai-bg);
    border: 1px solid var(--busca-ai-border);
    border-radius: var(--busca-ai-radius-lg);
    box-shadow: var(--busca-ai-shadow);
    margin-bottom: 24px;
    overflow: hidden;
}

.refinement-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--busca-ai-bg-light);
    border-bottom: 1px solid var(--busca-ai-border);
}

.refinement-header h4 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--busca-ai-text);
}

.refinement-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--busca-ai-text-light);
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--busca-ai-transition);
}

.refinement-close:hover {
    background: var(--busca-ai-error);
    color: white;
}

.refinement-options {
    padding: 20px;
}

.refinement-group {
    margin-bottom: 20px;
}

.refinement-group:last-child {
    margin-bottom: 0;
}

.refinement-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--busca-ai-text);
    margin-bottom: 12px;
}

.refinement-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.refine-btn {
    padding: 8px 16px;
    border: 1px solid var(--busca-ai-border);
    background: var(--busca-ai-bg);
    color: var(--busca-ai-text);
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    transition: var(--busca-ai-transition);
}

.refine-btn:hover,
.refine-btn.active {
    background: var(--busca-ai-primary);
    color: white;
    border-color: var(--busca-ai-primary);
}

/* ===== ESTADOS DE CARREGAMENTO ===== */
.busca-ai-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    text-align: center;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--busca-ai-border);
    border-radius: 50%;
    border-top-color: var(--busca-ai-primary);
    animation: spin 1s linear infinite;
    margin-bottom: 16px;
}

.loading-text {
    font-size: 16px;
    font-weight: 600;
    color: var(--busca-ai-text-light);
    margin-bottom: 8px;
}

.loading-subtext {
    font-size: 14px;
    color: var(--busca-ai-text-light);
}

/* ===== ESTADOS DE ERRO ===== */
.busca-ai-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: var(--busca-ai-error);
    padding: 20px;
    border-radius: var(--busca-ai-radius);
    text-align: center;
    margin-bottom: 20px;
}

.busca-ai-error h4 {
    margin: 0 0 8px 0;
    font-size: 16px;
    font-weight: 600;
}

.busca-ai-error p {
    margin: 0;
    font-size: 14px;
}

/* ===== ESTADOS VAZIOS ===== */
.busca-ai-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--busca-ai-text-light);
}

.busca-ai-empty h4 {
    margin: 0 0 8px 0;
    font-size: 18px;
    font-weight: 600;
}

.busca-ai-empty p {
    margin: 0;
    font-size: 14px;
}

/* ===== ANIMAÇÕES ===== */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

.slide-in {
    animation: slideIn 0.3s ease-out;
}

/* ===== RESPONSIVIDADE ===== */
@media (max-width: 768px) {
    .busca-inteligente-ai-container {
        padding: 0 12px;
        margin: 16px auto;
    }
    
    .busca-ai-input {
        padding: 14px 16px;
        font-size: 16px; /* Evita zoom no iOS */
    }
    
    .busca-ai-submit-btn {
        padding: 14px 20px;
        min-width: 100px;
    }
    
    .btn-text {
        display: none;
    }
    
    .product-image-container {
        height: 220px;
    }
    
    .product-details {
        padding: 20px 16px;
    }
    
    .product-name {
        font-size: 20px;
    }
    
    .current-price {
        font-size: 28px;
    }
    
    .product-actions {
        flex-direction: column;
    }
    
    .buy-button {
        min-width: auto;
    }
    
    .alternatives-list {
        grid-template-columns: 1fr;
    }
    
    .refinement-buttons {
        flex-direction: column;
    }
    
    .refine-btn {
        text-align: left;
    }
    
    .suggestions-list {
        flex-direction: column;
    }
    
    .suggestion-item {
        text-align: left;
        border-radius: var(--busca-ai-radius);
    }
}

@media (max-width: 480px) {
    .product-image-container {
        height: 180px;
    }
    
    .product-name {
        font-size: 18px;
    }
    
    .current-price {
        font-size: 24px;
    }
    
    .product-price {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .product-justification {
        padding: 16px;
    }
    
    .feedback-buttons {
        flex-direction: column;
    }
}

/* ===== TEMA ESCURO ===== */
.busca-inteligente-ai-container.theme-dark {
    --busca-ai-bg: #1f2937;
    --busca-ai-bg-light: #374151;
    --busca-ai-text: #f9fafb;
    --busca-ai-text-light: #d1d5db;
    --busca-ai-border: #4b5563;
}

.theme-dark .busca-ai-input-container {
    background: var(--busca-ai-bg);
    color: var(--busca-ai-text);
}

.theme-dark .busca-ai-input {
    color: var(--busca-ai-text);
}

.theme-dark .busca-ai-input::placeholder {
    color: var(--busca-ai-text-light);
}

.theme-dark .busca-ai-product-card {
    background: var(--busca-ai-bg);
    border-color: var(--busca-ai-border);
}

.theme-dark .product-image-container {
    background: linear-gradient(135deg, #374151 0%, #4b5563 100%);
}

/* ===== ESTILOS DE IMPRESSÃO ===== */
@media print {
    .busca-inteligente-ai-container {
        box-shadow: none !important;
    }
    
    .busca-ai-form-container,
    .busca-ai-suggestions,
    .busca-ai-refinement,
    .product-actions,
    .product-feedback {
        display: none !important;
    }
    
    .busca-ai-product-card {
        box-shadow: none !important;
        border: 1px solid #000 !important;
        break-inside: avoid;
    }
    
    .product-image-container {
        height: 200px !important;
    }
}

/* ===== ACESSIBILIDADE ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

.busca-inteligente-ai-container :focus {
    outline: 2px solid var(--busca-ai-primary);
    outline-offset: 2px;
}

.busca-inteligente-ai-container :focus:not(:focus-visible) {
    outline: none;
}

/* ===== UTILITÁRIOS ===== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.hidden {
    display: none !important;
}

.visible {
    display: block !important;
}