/* ===================================
   VARIABLES Y CONFIGURACIÓN GLOBAL
   =================================== */

/* TEMA AZUL (Por defecto) */
:root,
[data-theme="azul"] {
    --primary-color: #1e40af;
    --secondary-color: #3b82f6;
    --accent-color: #60a5fa;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --light-bg: #f8fafc;
    --white: #ffffff;
    --border-color: #e2e8f0;
    --text-primary: #000000;
    --text-secondary: #1e293b;
    --header-gradient-start: #1e40af;
    --header-gradient-end: #3b82f6;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* TEMA ROJO */
[data-theme="rojo"] {
    --primary-color: #dc2626;
    --secondary-color: #991b1b;
    --accent-color: #ef4444;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #b91c1c;
    --light-bg: #1f2937;
    --white: #111827;
    --border-color: #374151;
    --text-primary: #ffffff;
    --text-secondary: #d1d5db;
    --header-gradient-start: #dc2626;
    --header-gradient-end: #991b1b;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--light-bg);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===================================
   HEADER CORPORATIVO
   =================================== */
.header-bar {
    background: linear-gradient(135deg, var(--header-gradient-start) 0%, var(--header-gradient-end) 100%);
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

[data-theme="rojo"] .header-bar {
    color: var(--text-primary);
}

.company-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: inherit;
}

.company-subtitle {
    font-size: 0.9rem;
    opacity: 0.9;
    font-weight: 300;
    color: inherit;
}

.header-actions .btn {
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
    color: inherit;
}

[data-theme="azul"] .header-bar,
[data-theme="azul"] .header-bar .company-title,
[data-theme="azul"] .header-bar .company-subtitle,
[data-theme="azul"] .header-actions .btn {
    color: #ffffff;
}

.header-actions .btn:hover {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: #ffffff;
    transform: translateY(-2px);
}

/* ===================================
   CONTENEDOR PRINCIPAL DEL FORMULARIO
   =================================== */
.form-container {
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    margin-bottom: 2rem;
}

[data-theme="rojo"] .form-container {
    border: 1px solid var(--border-color);
}

.form-header {
    background: linear-gradient(to right, var(--light-bg), var(--white));
    padding: 2rem;
    border-bottom: 3px solid var(--primary-color);
}

.form-header h2 {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.form-header h2 i {
    margin-right: 0.5rem;
}

.form-header .badge {
    font-weight: 600;
    letter-spacing: 1px;
}

.form-header .text-muted {
    color: var(--text-secondary) !important;
}

/* ===================================
   SECCIONES DEL FORMULARIO
   =================================== */
.form-section {
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.form-section:last-of-type {
    border-bottom: none;
}

.section-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--accent-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-title i {
    font-size: 1.3rem;
}

/* ===================================
   ESTILOS DE CAMPOS DEL FORMULARIO
   =================================== */
.form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-label.required::after {
    content: " *";
    color: var(--danger-color);
    font-weight: 700;
}

.form-control,
.form-select {
    border: 2px solid var(--border-color);
    border-radius: 6px;
    padding: 0.625rem 0.875rem;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    background-color: var(--white);
    color: var(--text-primary);
}

[data-theme="rojo"] .form-control,
[data-theme="rojo"] .form-select {
    background-color: #1f2937;
    color: var(--text-primary);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    outline: none;
    background-color: var(--white);
}

[data-theme="rojo"] .form-control:focus,
[data-theme="rojo"] .form-select:focus {
    background-color: #111827;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.form-control::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

/* ===================================
   CHECKBOXES Y RADIOS PERSONALIZADOS
   =================================== */
.custom-checkbox,
.custom-radio {
    padding: 0.5rem 0;
    transition: all 0.2s ease;
}

.custom-checkbox:hover,
.custom-radio:hover {
    background-color: rgba(59, 130, 246, 0.05);
    border-radius: 6px;
    padding-left: 0.5rem;
}

.form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    margin-top: 0.125rem;
    cursor: pointer;
    border: 2px solid var(--border-color);
}

.form-check-input:checked {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}

.form-check-input:focus {
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.form-check-label {
    font-size: 0.95rem;
    color: var(--text-primary);
    cursor: pointer;
    margin-left: 0.5rem;
}

.custom-radio .form-check-label i {
    margin-right: 0.5rem;
    font-size: 1.1rem;
}

/* ===================================
   TABLA DE REPUESTOS
   =================================== */
.table-responsive {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

#tablaRepuestos {
    margin-bottom: 1rem;
}

#tablaRepuestos thead {
    background-color: var(--light-bg);
}

#tablaRepuestos thead th {
    font-weight: 700;
    color: var(--primary-color);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    padding: 1rem 0.75rem;
    border-bottom: 2px solid var(--accent-color);
}

[data-theme="rojo"] #tablaRepuestos thead th {
    background-color: var(--light-bg);
    color: var(--text-primary);
}

#tablaRepuestos tbody td {
    padding: 0.75rem;
    vertical-align: middle;
    background-color: var(--white);
    color: var(--text-primary);
}

[data-theme="rojo"] #tablaRepuestos tbody td {
    background-color: #1f2937;
    border-color: var(--border-color);
}

#tablaRepuestos tbody tr:hover {
    background-color: rgba(59, 130, 246, 0.05);
}

[data-theme="rojo"] #tablaRepuestos tbody tr:hover {
    background-color: rgba(239, 68, 68, 0.1);
}

#tablaRepuestos input.form-control {
    font-size: 0.9rem;
    padding: 0.5rem;
}

.btn-remove-repuesto {
    padding: 0.375rem 0.625rem;
    font-size: 0.875rem;
}

/* ===================================
   BOTONES DE ACCIÓN
   =================================== */
.form-actions {
    padding: 2rem;
    background: linear-gradient(to bottom, var(--white), var(--light-bg));
}

.btn {
    font-weight: 600;
    padding: 0.625rem 1.25rem;
    border-radius: 6px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

.btn i {
    margin-right: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border: none;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #1e40af, #2563eb);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-danger {
    background: linear-gradient(135deg, #dc2626, var(--danger-color));
    border: none;
    box-shadow: var(--shadow-md);
}

.btn-danger:hover {
    background: linear-gradient(135deg, #b91c1c, #dc2626);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: var(--secondary-color);
    border: none;
}

.btn-secondary:hover {
    background-color: #334155;
    transform: translateY(-2px);
}

.btn-outline-primary {
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
}

.btn-outline-primary:hover {
    background-color: var(--accent-color);
    color: var(--white);
}

.btn-lg {
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
}

/* ===================================
   FOOTER
   =================================== */
.footer-bar {
    background-color: var(--secondary-color);
    color: rgba(255, 255, 255, 0.8);
    margin-top: auto;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

.footer-bar p {
    font-size: 0.85rem;
}

/* ===================================
   ALERTAS Y MENSAJES
   =================================== */
.alert {
    border-radius: 8px;
    border: none;
    box-shadow: var(--shadow-sm);
    padding: 1rem 1.25rem;
}

.alert i {
    margin-right: 0.5rem;
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 768px) {
    .company-title {
        font-size: 1.2rem;
    }
    
    .company-subtitle {
        font-size: 0.8rem;
    }
    
    .form-header {
        padding: 1.5rem;
    }
    
    .form-header h2 {
        font-size: 1.4rem;
    }
    
    .form-section {
        padding: 1.5rem 1rem;
    }
    
    .section-title {
        font-size: 1.1rem;
    }
    
    .form-actions {
        padding: 1.5rem 1rem;
    }
    
    /* Tabla responsiva en móviles */
    #tablaRepuestos {
        font-size: 0.85rem;
    }
    
    #tablaRepuestos thead th {
        padding: 0.5rem 0.25rem;
        font-size: 0.75rem;
    }
    
    #tablaRepuestos tbody td {
        padding: 0.5rem 0.25rem;
    }
    
    #tablaRepuestos input.form-control {
        font-size: 0.85rem;
        padding: 0.375rem;
    }
    
    .btn {
        font-size: 0.85rem;
        padding: 0.5rem 1rem;
    }
    
    .btn-lg {
        font-size: 0.95rem;
        padding: 0.75rem 1.25rem;
    }
}

@media (max-width: 576px) {
    .header-bar .d-flex {
        flex-direction: column;
        text-align: center;
    }
    
    .header-actions {
        margin-top: 1rem;
    }
    
    .form-header .row {
        flex-direction: column;
    }
    
    .form-header .text-end {
        text-align: center !important;
        margin-top: 1rem;
    }
}

/* ===================================
   ANIMACIONES Y EFECTOS
   =================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-section {
    animation: fadeIn 0.5s ease-in-out;
}

.form-control:invalid:focus,
.form-select:invalid:focus {
    border-color: var(--warning-color);
}

.form-control:valid:focus,
.form-select:valid:focus {
    border-color: var(--success-color);
}

/* ===================================
   UTILIDADES ADICIONALES
   =================================== */
.text-muted {
    color: var(--text-secondary) !important;
}

.bg-light {
    background-color: var(--light-bg) !important;
}

/* Mejora visual para campos deshabilitados */
.form-control:disabled,
.form-select:disabled {
    background-color: #f1f5f9;
    cursor: not-allowed;
    opacity: 0.7;
}

[data-theme="rojo"] .form-control:disabled,
[data-theme="rojo"] .form-select:disabled {
    background-color: #0f172a;
}

/* Estilo para el número consecutivo */
#consecutivo {
    font-family: 'Courier New', monospace;
    font-weight: 700;
}

/* Efecto hover en filas de tabla */
tbody tr {
    transition: background-color 0.2s ease;
}

/* Scrollbar personalizado */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--light-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* SELECTOR DE TEMA */
.theme-selector {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    gap: 10px;
    background: var(--white);
    padding: 10px;
    border-radius: 50px;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--border-color);
}

.theme-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 3px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.theme-btn:hover {
    transform: scale(1.1);
}

.theme-btn.active {
    border-color: #000000;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
}

[data-theme="rojo"] .theme-btn.active {
    border-color: #ffffff;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.theme-btn-azul {
    background: linear-gradient(135deg, #1e40af, #3b82f6);
}

.theme-btn-rojo {
    background: linear-gradient(135deg, #dc2626, #1f2937);
}

.theme-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.theme-btn.active::after {
    opacity: 1;
}

/* Indicador de carga */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--white);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Estilo para elementos en impresión PDF */
@media print {
    .header-bar,
    .footer-bar,
    .form-actions,
    .btn {
        display: none !important;
    }
    
    .form-container {
        box-shadow: none;
        border: 1px solid var(--border-color);
    }
    
    .form-section {
        page-break-inside: avoid;
    }
}