/* Sistema de Temas Avançado - Dark/Light Mode */

:root {
    /* Cores base */
    --primary-orange: #ff6b35;
    --primary-orange-dark: #e55a2b;
    --primary-orange-light: #ff8a50;
    
    /* Tema Claro (padrão) */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-tertiary: #718096;
    --border-primary: #e2e8f0;
    --border-secondary: #cbd5e0;
    --shadow-light: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-medium: 0 8px 25px rgba(0, 0, 0, 0.12);
    --shadow-heavy: 0 20px 40px rgba(0, 0, 0, 0.15);
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, var(--primary-orange) 0%, var(--primary-orange-light) 100%);
    --gradient-bg: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    
    /* Transições */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Tema Escuro */
[data-theme="dark"] {
    --bg-primary: #1a202c;
    --bg-secondary: #2d3748;
    --bg-tertiary: #4a5568;
    --text-primary: #f7fafc;
    --text-secondary: #e2e8f0;
    --text-tertiary: #a0aec0;
    --border-primary: #4a5568;
    --border-secondary: #2d3748;
    --shadow-light: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-medium: 0 8px 25px rgba(0, 0, 0, 0.4);
    --shadow-heavy: 0 20px 40px rgba(0, 0, 0, 0.6);
    --gradient-bg: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
}

/* Tema Automático (baseado na preferência do sistema) */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme]) {
        --bg-primary: #1a202c;
        --bg-secondary: #2d3748;
        --bg-tertiary: #4a5568;
        --text-primary: #f7fafc;
        --text-secondary: #e2e8f0;
        --text-tertiary: #a0aec0;
        --border-primary: #4a5568;
        --border-secondary: #2d3748;
        --shadow-light: 0 4px 12px rgba(0, 0, 0, 0.3);
        --shadow-medium: 0 8px 25px rgba(0, 0, 0, 0.4);
        --shadow-heavy: 0 20px 40px rgba(0, 0, 0, 0.6);
        --gradient-bg: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
    }
}

/* Aplicação das variáveis */
body {
    background: var(--gradient-bg);
    color: var(--text-primary);
    transition: background var(--transition-normal), color var(--transition-normal);
}

/* Toggle de tema */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    background: var(--bg-primary);
    border: 2px solid var(--border-primary);
    border-radius: 50px;
    padding: 8px;
    cursor: pointer;
    box-shadow: var(--shadow-medium);
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 60px;
    justify-content: center;
}

.theme-toggle:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-heavy);
}

.theme-icon {
    font-size: 20px;
    transition: transform var(--transition-normal);
}

.theme-toggle[data-theme="light"] .theme-icon {
    transform: rotate(0deg);
}

.theme-toggle[data-theme="dark"] .theme-icon {
    transform: rotate(180deg);
}

/* Animações de transição de tema */
* {
    transition: background-color var(--transition-normal), 
                border-color var(--transition-normal), 
                color var(--transition-normal),
                box-shadow var(--transition-normal);
}

/* Atualização de componentes existentes */
.sidebar {
    background: var(--bg-primary);
    border-right: 1px solid var(--border-primary);
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
}

.content {
    background: var(--bg-secondary);
}

.metric-card,
.content-card,
.quick-action-btn {
    background: var(--bg-primary);
    border: 1px solid var(--border-primary);
    box-shadow: var(--shadow-light);
}

.metric-card:hover,
.content-card:hover,
.quick-action-btn:hover {
    box-shadow: var(--shadow-medium);
}

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

.nav-item:hover {
    background: rgba(255, 107, 53, 0.1);
}

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

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

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

.item-details h4 {
    color: var(--text-primary);
}

.item-details p {
    color: var(--text-secondary);
}

.list-item {
    background: var(--bg-tertiary);
}

.list-item:hover {
    background: var(--bg-secondary);
}

/* Modo de alto contraste */
[data-theme="high-contrast"] {
    --bg-primary: #000000;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #333333;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-tertiary: #999999;
    --border-primary: #666666;
    --border-secondary: #444444;
    --primary-orange: #ffaa00;
}

/* Modo de baixo contraste (para sensibilidade visual) */
[data-theme="low-contrast"] {
    --bg-primary: #f5f5f5;
    --bg-secondary: #eeeeee;
    --bg-tertiary: #e8e8e8;
    --text-primary: #444444;
    --text-secondary: #666666;
    --text-tertiary: #888888;
    --border-primary: #dddddd;
    --border-secondary: #cccccc;
}

/* Animações de entrada */
@keyframes slideInFromTop {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

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

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

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

/* Aplicação das animações */
.metric-card {
    animation: scaleIn 0.4s ease forwards;
}

.content-card {
    animation: slideInFromLeft 0.5s ease forwards;
}

.quick-action-btn {
    animation: slideInFromTop 0.3s ease forwards;
}

.list-item {
    animation: fadeIn 0.3s ease forwards;
}

/* Delays escalonados para animações */
.metric-card:nth-child(1) { animation-delay: 0.1s; }
.metric-card:nth-child(2) { animation-delay: 0.2s; }
.metric-card:nth-child(3) { animation-delay: 0.3s; }
.metric-card:nth-child(4) { animation-delay: 0.4s; }

.quick-action-btn:nth-child(1) { animation-delay: 0.1s; }
.quick-action-btn:nth-child(2) { animation-delay: 0.2s; }
.quick-action-btn:nth-child(3) { animation-delay: 0.3s; }

.list-item:nth-child(1) { animation-delay: 0.1s; }
.list-item:nth-child(2) { animation-delay: 0.15s; }
.list-item:nth-child(3) { animation-delay: 0.2s; }
.list-item:nth-child(4) { animation-delay: 0.25s; }
.list-item:nth-child(5) { animation-delay: 0.3s; }

/* Redução de movimento para usuários sensíveis */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Modo de foco (para acessibilidade) */
.focus-mode {
    filter: grayscale(0.8) contrast(1.2);
}

.focus-mode .metric-card:not(:focus-within),
.focus-mode .content-card:not(:focus-within) {
    opacity: 0.6;
    transform: scale(0.98);
}

/* Indicadores de loading */
.loading-skeleton {
    background: linear-gradient(90deg, 
        var(--bg-tertiary) 25%, 
        var(--bg-secondary) 50%, 
        var(--bg-tertiary) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Micro-interações */
.btn {
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

/* Efeitos de hover avançados */
.metric-card {
    position: relative;
    overflow: hidden;
}

.metric-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
    transform: rotate(45deg);
    transition: transform 0.6s;
    opacity: 0;
}

.metric-card:hover::before {
    transform: rotate(45deg) translateX(100%);
    opacity: 1;
}