/* ==============================================================================
   DISEÑO GLOBAL Y VARIABLES DE ESTILO (SISTEMA DE TEMAS)
   ============================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Paleta de Colores Modo Oscuro (Por defecto) */
    --bg-main: #090d16;
    --bg-sidebar: #0f1524;
    --bg-card: rgba(22, 30, 49, 0.6);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-focus: #6366f1;
    
    /* Colores de Acento */
    --color-primary: #6366f1;
    --color-primary-hover: #4f46e5;
    --color-success: #10b981;
    --color-success-hover: #059669;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    --color-info: #06b6d4;
    
    /* Colores de Texto */
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --text-inverse: #090d16;
    
    /* Efecto de Vidrio (Glassmorphism) */
    --glass-blur: blur(12px);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    
    /* Configuración Global */
    --font-family: 'Inter', sans-serif;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
    /* Paleta de Colores Modo Claro */
    --bg-main: #f3f4f6;
    --bg-sidebar: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.8);
    --border-color: rgba(0, 0, 0, 0.08);
    --border-focus: #4f46e5;
    
    --color-primary: #4f46e5;
    --color-primary-hover: #3730a3;
    --color-success: #10b981;
    --color-warning: #d97706;
    --color-danger: #dc2626;
    --color-info: #0891b2;
    
    --text-main: #111827;
    --text-muted: #6b7280;
    --text-inverse: #ffffff;
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.05);
}

/* ==============================================================================
   RESETEO BÁSICO
   ============================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-main);
    color: var(--text-main);
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* ==============================================================================
   ESTRUCTURA DE APLICACIÓN (LAYOUT)
   ============================================================================== */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Estilo Premium */
.sidebar {
    width: 260px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 24px 16px;
    position: fixed;
    height: 100vh;
    z-index: 100;
    transition: width var(--transition-normal), background-color var(--transition-normal), border var(--transition-normal), padding var(--transition-normal);
}

/* Estado Colapsado del Sidebar */
.sidebar.collapsed {
    width: 70px;
    padding: 24px 8px;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    margin-bottom: 32px;
    overflow: hidden;
    transition: padding var(--transition-normal);
}

.sidebar.collapsed .sidebar-logo {
    padding: 8px 4px;
    justify-content: center;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-info));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.25rem;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
    flex-shrink: 0;
}

.logo-text {
    font-weight: 800;
    font-size: 1.2rem;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--text-main), var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: opacity var(--transition-fast);
}

.sidebar.collapsed .logo-text {
    opacity: 0;
    display: none;
}

.sidebar-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex-grow: 1;
}

.menu-item a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    white-space: nowrap;
}

.sidebar.collapsed .menu-item a {
    justify-content: center;
    padding: 12px;
}

.sidebar.collapsed .menu-item a span {
    display: none;
}

.menu-item a:hover {
    background-color: rgba(255, 255, 255, 0.04);
    color: var(--text-main);
}

.menu-item.active a {
    background-color: var(--color-primary);
    color: var(--text-inverse);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.sidebar-footer {
    border-top: 1px solid var(--border-color);
    padding-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    overflow: hidden;
}

.sidebar.collapsed .sidebar-footer {
    align-items: center;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    transition: padding var(--transition-normal);
}

.sidebar.collapsed .user-info {
    padding: 8px 0;
    justify-content: center;
}

.user-avatar {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--color-primary);
    border: 1px solid var(--border-color);
    flex-shrink: 0;
}

.user-details {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: opacity var(--transition-fast);
}

.sidebar.collapsed .user-details {
    display: none;
    opacity: 0;
}

.user-name {
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.sidebar.collapsed .logout-btn span {
    display: none;
}

.sidebar.collapsed .logout-btn {
    padding: 10px;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

/* Área de Contenido Principal */
.main-content {
    margin-left: 260px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left var(--transition-normal);
}

.main-content.sidebar-collapsed {
    margin-left: 70px;
}

/* Encabezado */
.top-header {
    height: 70px;
    background-color: rgba(9, 13, 22, 0.2);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-color);
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 90;
}

.header-title h1 {
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.header-widgets {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* Widget de Tipo de Cambio (TC) */
.exchange-widget {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 600;
}

.exchange-label {
    color: var(--text-muted);
}

.exchange-value {
    color: var(--color-warning);
}

/* Botón de Cambio de Tema (Modo Oscuro/Claro) */
.theme-toggle {
    background: none;
    border: 1px solid var(--border-color);
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-main);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--text-muted);
}

/* Botón de Logout */
.logout-btn {
    background: none;
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--color-danger);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-fast);
}

.logout-btn:hover {
    background-color: rgba(239, 68, 68, 0.1);
}

/* Contenedor de Vistas */
.view-container {
    padding: 32px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

/* Vista con Animación de Entrada */
.fade-in {
    animation: fadeInAnimation var(--transition-normal);
}

@keyframes fadeInAnimation {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}