/* ============================================================================
   styles-dark.css - Tema Oscuro para FacturaCEL
   ============================================================================
   
   INSTRUCCIONES DE USO:
   
   1. En factura_app.php, comentar la línea del tema claro:
      <!-- <link rel="stylesheet" href="styles.css?v=1.00"> --> ???
   
   2. Descomentar o agrega la línea del tema oscuro:
      <link rel="stylesheet" href="styles.css?v=1.00">
      <link rel="stylesheet" href="styles-dark.css?v=1.00">
   
   NOTA: El archivo styles.css debe cargarse PRIMERO, y luego styles-dark.css ???
         sobrescribe solo las variables de color.
   
   ============================================================================ */

:root {
    /* ================================================================
       Colores Base del Tema Oscuro
       ================================================================ */
    --color-primary: #4299e1;
    --color-primary-dark: #2c5282;
    --color-secondary: #718096;
    --color-success: #48bb78;
    --color-danger: #fc8181;
    --color-warning: #f6ad55;
    
    /* Fondos generales - Tonos oscuros */
    --bg-main: #1a202c;
    --bg-header: #2d3748;
    --bg-table-header: #2d3748;
    --bg-table-row: #2d3748;
    --bg-table-row-alt: #1a202c;
    --bg-footer: #2d3748;
    
    /* Fondos de contenedores específicos - Tema oscuro */
    --bg-cliente-area: #2d3748;          /* Fondo del área de datos del cliente */
    --bg-detalles-area: #1a202c;         /* Fondo del área de detalles (más oscuro) */
    --bg-detalles-table: #2d3748;        /* Fondo de la tabla de detalles */
    
    /* Variables de DFORM.fieldSet - Sobrescribir para tema oscuro */
    --fs-label-bg: #2d3748;              /* Fondo de etiquetas flotantes (mismo que cliente-area) */
    --fs-icon-color: #a0aec0;            /* Color de iconos en campos */
    --fs-border-color: #4a5568;          /* Color de bordes de campos */
    
    /* Campos readonly/disabled - Estados especiales en tema oscuro */
    --input-readonly-bg: #1a202c;        /* Fondo de campos readonly (más oscuro) */
    --input-readonly-text: #4299e1;      /* Texto de campos readonly (azul claro) */
    --input-readonly-border: #2d3748;    /* Borde de campos readonly */
    --modal-readonly-bg: #1a202c;        /* Fondo de campos readonly en modal */
    
    /* Bordes y textos generales - Tonos claros para contraste */
    --border-color: #4a5568;
    --text-primary: #f7fafc;
    --text-secondary: #cbd5e0;
    --text-muted: #a0aec0;
    
    /* Sombras - Más pronunciadas en tema oscuro */
    --shadow-sm: 0 1px 3px 0 rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px 0 rgba(0,0,0,0.4);
    
    /* ================================================================
       Colores de Componentes Específicos (Tema Oscuro)
       ================================================================ */
    
    /* ENCABEZADO SUPERIOR (header-emisor) - Barra azul oscura */
    --header-emisor-bg: linear-gradient(135deg, #1a365d 0%, #0f2744 100%);
    --header-emisor-text: #e2e8f0;
    
    /* ENCABEZADOS DE COLUMNAS (table headers) - Fondo oscuro con texto claro */
    --table-header-bg: linear-gradient(180deg, #2d3748 0%, #1a202c 100%);
    --table-header-text: #e2e8f0;
    --table-header-border: #4299e1;
    
    /* BOTONES PRIMARIOS (Guardar) - Azul brillante */
    --btn-primary-bg: #3182ce;
    --btn-primary-bg-hover: #2c5282;
    --btn-primary-text: #ffffff;
    
    /* BOTONES SECUNDARIOS (Cancelar) - Gris oscuro */
    --btn-secondary-bg: #4a5568;
    --btn-secondary-bg-hover: #2d3748;
    --btn-secondary-text: #e2e8f0;
    
    /* BOTONES DE ACCIÓN (Ver/Editar) - Azul claro */
    --btn-action-bg: #4299e1;
    --btn-action-bg-hover: #48bb78;
    --btn-action-text: #ffffff;
    
    /* ICONOS DE BOTONES - Colores más brillantes para tema oscuro */
    --icon-edit-color: #ffffff;
    --icon-delete-color: #fc8181;
    --icon-move-up-color: #9f7aea;
    --icon-move-down-color: #f6ad55;
}

/* ================================================================
   Ajustes Específicos para Tema Oscuro
   ================================================================ */

/* Inputs y selects - Fondo oscuro con borde visible */
.details-table input,
.details-table select,
.footer-table input,
.footer-table select {
    background: #1a202c;
    color: #f7fafc;
    border-color: #4a5568;
}

.details-table input:focus,
.details-table select:focus,
.footer-table input:focus,
.footer-table select:focus {
    background: #2d3748;
    border-color: #4299e1;
}

.details-table input[readonly],
.footer-table input[readonly] {
    background: var(--input-readonly-bg) !important;
    color: var(--input-readonly-text);
    border-color: var(--input-readonly-border);
}

/* Hover en filas de tablas */
.details-table tbody tr:hover,
.footer-table tbody tr:hover {
    background: #2d3748;
    box-shadow: inset 0 0 0 1px rgba(66, 153, 225, 0.3);
}

/* Campos del cliente (fieldset) */
/* Campos de formulario DFORM - Tema oscuro */
.fs-field__control {
    background: #1a202c;
    color: var(--text-primary);
    border-color: var(--fs-border-color);
}

.fs-field__control:focus {
    background: #2d3748;
    border-color: var(--color-primary);
}

.fs-field__label {
    color: var(--fs-icon-color);
    /* background ya está definido en --fs-label-bg */
}

.fs-field__control:focus + .fs-field__label,
.fs-field__control:not(:placeholder-shown) + .fs-field__label {
    color: var(--color-primary);
}

/* Totales */
.totals-grid {
    background: #1a202c;
    border-color: #4a5568;
}

.total-final {
    border-top-color: #4a5568;
    color: #4299e1;
}

/* Modal */
.modal {
    background-color: rgba(0, 0, 0, 0.8);
}

.modal-content {
    background: #2d3748;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}

.modal-header {
    background: linear-gradient(135deg, #1a365d 0%, #0f2744 100%);
    border-bottom-color: #4a5568;
}

.modal-body {
    background: #2d3748;
}

.modal-body .fs-fieldset {
    background: #1a202c;
    border-color: #4a5568;
}

.modal-body .fs-legend {
    color: #4299e1;
    background: #2d3748;
}

/* Campos readonly en modal - Tema oscuro */
.modal-body .fs-field__control[readonly] {
    background: var(--modal-readonly-bg) !important;
    color: var(--input-readonly-text);
    border-color: var(--input-readonly-border);
}

.modal-footer {
    background: #1a202c;
    border-top-color: #4a5568;
}

/* Botones de iconos */
.btn-icon {
    background: #2d3748;
    border-color: #4a5568;
    color: #cbd5e0;
}

.btn-icon:hover {
    background: #4a5568;
    border-color: #718096;
}

/* Scrollbars - Estilo oscuro */
.details-scroll::-webkit-scrollbar-track,
.footer-scroll::-webkit-scrollbar-track,
.header-cliente::-webkit-scrollbar-track {
    background: #1a202c;
}

.details-scroll::-webkit-scrollbar-thumb,
.footer-scroll::-webkit-scrollbar-thumb,
.header-cliente::-webkit-scrollbar-thumb {
    background: #4a5568;
}

.details-scroll::-webkit-scrollbar-thumb:hover,
.footer-scroll::-webkit-scrollbar-thumb:hover,
.header-cliente::-webkit-scrollbar-thumb:hover {
    background: #718096;
}

/* Input de fecha en header */
.fecha-emisor input[type="date"] {
    background: rgba(255, 255, 255, 0.1);
    color: #e2e8f0;
    border-color: rgba(255, 255, 255, 0.2);
}

.fecha-emisor input[type="date"]:focus {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.4);
}

/* Secciones del footer */
.footer-section {
    background: #1a202c;
    border-color: #4a5568;
}

/* Ajuste de contraste para textos en fondos oscuros */
body {
    background: #1a202c;
    color: #f7fafc;
}