/**
 * Sistema de Temas - CSS Variables
 *
 * Define variáveis CSS para diferentes temas:
 * - Light (Claro)
 * - Dark (Escuro)
 * - Blue (Azul)
 * - Green (Verde)
 * - Purple (Roxo)
 *
 * @version 1.0
 * @author Sistema Psicólogos
 */

/* =============================================================================
   TEMA LIGHT (PADRÃO)
   ============================================================================= */
:root,
:root.theme-light {
    /* Cores principais */
    --color-primary: #4F46E5;
    --color-primary-dark: #4338CA;
    --color-primary-light: #6366F1;

    /* Cores de fundo */
    --color-bg-primary: #FFFFFF;
    --color-bg-secondary: #F9FAFB;
    --color-bg-tertiary: #F3F4F6;

    /* Cores de texto */
    --color-text-primary: #111827;
    --color-text-secondary: #6B7280;
    --color-text-tertiary: #9CA3AF;

    /* Cores de borda */
    --color-border-primary: #E5E7EB;
    --color-border-secondary: #D1D5DB;

    /* Cores de estado */
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;
    --color-info: #3B82F6;

    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Overlays */
    --overlay-bg: rgba(0, 0, 0, 0.5);

    /* Focus */
    --focus-ring: 0 0 0 3px rgba(79, 70, 229, 0.3);
}

/* =============================================================================
   TEMA DARK
   ============================================================================= */
:root.theme-dark {
    /* Cores principais */
    --color-primary: #6366F1;
    --color-primary-dark: #4F46E5;
    --color-primary-light: #818CF8;

    /* Cores de fundo */
    --color-bg-primary: #1F2937;
    --color-bg-secondary: #111827;
    --color-bg-tertiary: #0F172A;

    /* Cores de texto */
    --color-text-primary: #F9FAFB;
    --color-text-secondary: #D1D5DB;
    --color-text-tertiary: #9CA3AF;

    /* Cores de borda */
    --color-border-primary: #374151;
    --color-border-secondary: #4B5563;

    /* Cores de estado */
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;
    --color-info: #3B82F6;

    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);

    /* Overlays */
    --overlay-bg: rgba(0, 0, 0, 0.7);

    /* Focus */
    --focus-ring: 0 0 0 3px rgba(99, 102, 241, 0.4);
}

/* =============================================================================
   TEMA BLUE
   ============================================================================= */
:root.theme-blue {
    --color-primary: #2563EB;
    --color-primary-dark: #1D4ED8;
    --color-primary-light: #3B82F6;
    --focus-ring: 0 0 0 3px rgba(37, 99, 235, 0.3);
}

/* =============================================================================
   TEMA GREEN
   ============================================================================= */
:root.theme-green {
    --color-primary: #059669;
    --color-primary-dark: #047857;
    --color-primary-light: #10B981;
    --focus-ring: 0 0 0 3px rgba(5, 150, 105, 0.3);
}

/* =============================================================================
   TEMA PURPLE
   ============================================================================= */
:root.theme-purple {
    --color-primary: #7C3AED;
    --color-primary-dark: #6D28D9;
    --color-primary-light: #8B5CF6;
    --focus-ring: 0 0 0 3px rgba(124, 58, 237, 0.3);
}

/* =============================================================================
   CLASSES UTILITÁRIAS DE TEMA
   ============================================================================= */

/* Backgrounds */
.bg-primary { background-color: var(--color-bg-primary); }
.bg-secondary { background-color: var(--color-bg-secondary); }
.bg-tertiary { background-color: var(--color-bg-tertiary); }

/* Textos */
.text-primary { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-tertiary { color: var(--color-text-tertiary); }

/* Bordas */
.border-primary { border-color: var(--color-border-primary); }
.border-secondary { border-color: var(--color-border-secondary); }

/* Cores de ação */
.text-action { color: var(--color-primary); }
.bg-action { background-color: var(--color-primary); }
.border-action { border-color: var(--color-primary); }

/* Hover para cores de ação */
.hover-action:hover {
    background-color: var(--color-primary-dark);
}

/* Estados */
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-error { color: var(--color-error); }
.text-info { color: var(--color-info); }

.bg-success { background-color: var(--color-success); }
.bg-warning { background-color: var(--color-warning); }
.bg-error { background-color: var(--color-error); }
.bg-info { background-color: var(--color-info); }

/* Sombras */
.shadow-theme-sm { box-shadow: var(--shadow-sm); }
.shadow-theme-md { box-shadow: var(--shadow-md); }
.shadow-theme-lg { box-shadow: var(--shadow-lg); }
.shadow-theme-xl { box-shadow: var(--shadow-xl); }

/* =============================================================================
   TRANSIÇÕES SUAVES
   ============================================================================= */
:root {
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

* {
    transition: background-color var(--transition-normal),
                color var(--transition-normal),
                border-color var(--transition-normal),
                box-shadow var(--transition-fast);
}

/* =============================================================================
   ACESSIBILIDADE - PREFERÊNCIAS DO USUÁRIO
   ============================================================================= */

/* Respeitar preferência de movimento reduzido */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Alto contraste */
@media (prefers-contrast: high) {
    :root {
        --color-border-primary: #000000;
        --color-text-primary: #000000;
    }

    :root.theme-dark {
        --color-border-primary: #FFFFFF;
        --color-text-primary: #FFFFFF;
    }
}

/* =============================================================================
   COMPONENTES COM TEMA
   ============================================================================= */

/* Cards */
.card-themed {
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border-primary);
    box-shadow: var(--shadow-md);
    color: var(--color-text-primary);
}

/* Inputs */
.input-themed {
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border-primary);
    color: var(--color-text-primary);
}

.input-themed:focus {
    border-color: var(--color-primary);
    box-shadow: var(--focus-ring);
    outline: none;
}

/* Botões */
.btn-themed-primary {
    background-color: var(--color-primary);
    color: white;
    border: none;
}

.btn-themed-primary:hover {
    background-color: var(--color-primary-dark);
}

.btn-themed-secondary {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border-primary);
}

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

/* Links */
.link-themed {
    color: var(--color-primary);
    text-decoration: none;
}

.link-themed:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* Modals/Overlays */
.overlay-themed {
    background-color: var(--overlay-bg);
}

/* =============================================================================
   TOGGLE DARK MODE - Componente
   ============================================================================= */
.dark-mode-toggle {
    position: relative;
    width: 60px;
    height: 30px;
    background-color: var(--color-border-primary);
    border-radius: 15px;
    cursor: pointer;
    transition: background-color var(--transition-normal);
}

.dark-mode-toggle:hover {
    background-color: var(--color-border-secondary);
}

.dark-mode-toggle.active {
    background-color: var(--color-primary);
}

.dark-mode-toggle .toggle-thumb {
    position: absolute;
    top: 3px;
    left: 3px;
    width: 24px;
    height: 24px;
    background-color: white;
    border-radius: 50%;
    transition: transform var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.dark-mode-toggle.active .toggle-thumb {
    transform: translateX(30px);
}

/* =============================================================================
   THEME SELECTOR - Seletor de temas
   ============================================================================= */
.theme-selector {
    padding: 1rem;
}

.theme-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0.75rem;
    border: 2px solid var(--color-border-primary);
    border-radius: 0.5rem;
    background-color: var(--color-bg-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.theme-option:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.theme-option.active {
    border-color: var(--color-primary);
    background-color: var(--color-primary);
    color: white;
}

.theme-option.active span {
    filter: brightness(2);
}

/* =============================================================================
   FOCUS VISÍVEL - Acessibilidade
   ============================================================================= */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    box-shadow: var(--focus-ring);
}