/* Sistema de Dark Mode Completo */

/* Variáveis CSS para temas */
:root {
    /* Light Mode (padrão) */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-primary: #212529;
    --bg-footer: #0B254B;
    --text-secondary: #6c757d;
    --text-tertiary: #495057;
    --border-color: #dee2e6;
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-medium: rgba(0, 0, 0, 0.15);
    --shadow-heavy: rgba(0, 0, 0, 0.25);
    
    /* Cores de destaque mantidas */
    --accent-green: #00ff7f;
    --accent-blue: #007bff;
    --accent-red: #dc2626;
    --accent-yellow: #ffc107;
    
    /* Gradientes adaptativos */
    --gradient-primary: linear-gradient(135deg, var(--accent-green) 0%, var(--accent-blue) 100%);
    --gradient-secondary: linear-gradient(135deg, rgba(0, 255, 127, 0.1) 0%, rgba(0, 123, 255, 0.1) 100%);
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #3a3a3a;
    --text-primary: #ffffff;
    --bg-footer: #0B254B;
    --text-secondary: #b0b0b0;
    --text-tertiary: #d0d0d0;
    --border-color: #404040;
    --shadow-light: rgba(0, 0, 0, 0.3);
    --shadow-medium: rgba(0, 0, 0, 0.4);
    --shadow-heavy: rgba(0, 0, 0, 0.6);
    
    /* Gradientes escuros */
    --gradient-secondary: linear-gradient(135deg, rgba(0, 255, 127, 0.05) 0%, rgba(0, 123, 255, 0.05) 100%);
}

/* Auto Dark Mode (baseado na preferência do sistema) */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg-primary: #1a1a1a;
        --bg-secondary: #2d2d2d;
        --bg-tertiary: #3a3a3a;
        --text-primary: #ffffff;
        --bg-footer: #0B254B;
        --text-secondary: #b0b0b0;
        --text-tertiary: #d0d0d0;
        --border-color: #404040;
        --shadow-light: rgba(0, 0, 0, 0.3);
        --shadow-medium: rgba(0, 0, 0, 0.4);
        --shadow-heavy: rgba(0, 0, 0, 0.6);
        --gradient-secondary: linear-gradient(135deg, rgba(0, 255, 127, 0.05) 0%, rgba(0, 123, 255, 0.05) 100%);
    }
}

/* Toggle do Dark Mode */
.theme-toggle {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 25px;
    padding: 0.5rem 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
}

.theme-toggle:hover {
    background: var(--bg-tertiary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-medium);
}

.theme-toggle-switch {
    position: relative;
    width: 50px;
    height: 24px;
    background: var(--border-color);
    border-radius: 12px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.theme-toggle-switch::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: var(--bg-primary);
    border-radius: 50%;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px var(--shadow-light);
}

[data-theme="dark"] .theme-toggle-switch {
    background: var(--accent-green);
}

[data-theme="dark"] .theme-toggle-switch::before {
    transform: translateX(26px);
    background: var(--bg-primary);
}

.theme-toggle-icon {
    width: 18px;
    height: 18px;
    transition: all 0.3s ease;
}

.theme-toggle-icon.sun {
    color: #fbbf24;
    opacity: 1;
}

.theme-toggle-icon.moon {
    color: #60a5fa;
    opacity: 0.5;
}

[data-theme="dark"] .theme-toggle-icon.sun {
    opacity: 0.5;
}

[data-theme="dark"] .theme-toggle-icon.moon {
    opacity: 1;
}

/* Aplicação global do tema */
body {
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Headers e navegação */
.cabecalho {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 8px var(--shadow-light);
}

.cabecalho__nav_list_input {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

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

.cabecalho__nav_list_input:focus {
    background: var(--bg-primary);
    border-color: var(--accent-green);
}

.cabecalho__nav_list_link {
    color: var(--text-primary);
}

.cabecalho__nav_list_link:hover {
    color: var(--accent-green);
}

/* Cards e componentes */
.card,
.produto,
.carrinho__items,
.resumo-card,
.recomendados,
.modal__content {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px var(--shadow-light);
}

.card:hover,
.produto:hover {
    box-shadow: 0 8px 25px var(--shadow-medium);
}

/* Formulários */
input,
textarea,
select {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

input:focus,
textarea:focus,
select:focus {
    background: var(--bg-primary);
    border-color: var(--accent-green);
    box-shadow: 0 0 0 3px rgba(0, 255, 127, 0.1);
}

input::placeholder,
textarea::placeholder {
    color: var(--text-secondary);
}

/* Botões */
.btn,
button {
    transition: all 0.3s ease;
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent-green);
}

/* Estados especiais para dark mode */
[data-theme="dark"] .search-suggestions {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .search-suggestion-item:hover {
    background: var(--bg-tertiary);
}

[data-theme="dark"] .carrinho-item:hover {
    background: var(--bg-secondary);
}

[data-theme="dark"] .quantidade-controls {
    border-color: var(--border-color);
}

[data-theme="dark"] .quantidade-btn {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

[data-theme="dark"] .quantidade-btn:hover {
    background: var(--accent-green);
    color: var(--bg-primary);
}

[data-theme="dark"] .quantidade-input {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--border-color);
}

/* Breadcrumb */
.breadcrumb {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb a {
    color: var(--text-secondary);
}

.breadcrumb a:hover {
    color: var(--accent-green);
}

/* Footer */
.rodape {
    background: var(--bg-footer); /* <-- USE A NOVA VARIÁVEL AQUI TAMBÉM */
    border-top: 1px solid var(--border-color);
}

.rodape__coluna_titulo {
    color: var(--text-primary);
}

.rodape__coluna_link {
    color: var(--text-secondary);
}

.rodape__coluna_link:hover {
    color: var(--accent-green);
}

/* Notificações */
.notificacao-toast {
    background: var(--bg-primary) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 25px var(--shadow-heavy);
}

/* Produtos */
.produto-categoria {
    color: var(--text-secondary);
}

.produto-preco {
    color: var(--accent-green);
}

.produto-preco-original {
    color: var(--text-secondary);
}

/* Modais */
.modal__overlay {
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

[data-theme="dark"] .modal__overlay {
    background: rgba(0, 0, 0, 0.8);
}

/* Scrollbar personalizada para dark mode */
[data-theme="dark"] ::-webkit-scrollbar {
    width: 8px;
}

[data-theme="dark"] ::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Animações de transição do tema */
* {
    transition: background-color 0.3s ease, 
                color 0.3s ease, 
                border-color 0.3s ease,
                box-shadow 0.3s ease;
}

/* Estados loading e disabled em dark mode */
[data-theme="dark"] .btn-loading::after {
    border-top-color: var(--text-primary);
}

[data-theme="dark"] .btn:disabled {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    opacity: 0.6;
}

/* Imagens com filtro para dark mode */
[data-theme="dark"] img:not(.no-filter) {
    filter: brightness(0.9) contrast(1.1);
}

[data-theme="dark"] .cabecalho__logo img,
[data-theme="dark"] .produto img {
    filter: none;
}

/* Toggle minimalista para o header */
.header-theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.header-theme-toggle:hover {
    background: var(--bg-tertiary);
    transform: scale(1.1);
}

.header-theme-toggle::before {
    content: '☀️';
    font-size: 18px;
    transition: all 0.3s ease;
}

[data-theme="dark"] .header-theme-toggle::before {
    content: '🌙';
}

/* Efeito de onda no toggle */
.header-theme-toggle::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: var(--accent-green);
    opacity: 0.3;
    transform: translate(-50%, -50%);
    transition: all 0.6s ease;
}

.header-theme-toggle.animating::after {
    width: 100px;
    height: 100px;
    opacity: 0;
}

/* Responsive */
@media (max-width: 768px) {
    .theme-toggle {
        padding: 0.4rem 0.8rem;
        gap: 0.3rem;
    }
    
    .theme-toggle-switch {
        width: 40px;
        height: 20px;
    }
    
    .theme-toggle-switch::before {
        width: 16px;
        height: 16px;
    }
    
    [data-theme="dark"] .theme-toggle-switch::before {
        transform: translateX(20px);
    }
    
    .theme-toggle-icon {
        width: 16px;
        height: 16px;
    }
}

/* Prevenção de flash durante carregamento */
html {
    color-scheme: light dark;
}

html[data-theme="dark"] {
    color-scheme: dark;
}

/* Performance otimization */
@media (prefers-reduced-motion: reduce) {
    *,
    .theme-toggle,
    .theme-toggle-switch,
    .theme-toggle-switch::before,
    .theme-toggle-icon {
        transition: none !important;
        animation: none !important;
    }
}