/**
 * Estilos para el Formulario de Contacto ANFDGAC
 * 
 * Este archivo contiene todos los estilos específicos para la página de contacto
 * de la Asociación Nacional de Funcionarios de la Dirección General de Aeronáutica Civil
 * 
 * Secciones incluidas:
 * - Variables CSS personalizadas
 * - Layout principal y contenedor
 * - Breadcrumb de navegación
 * - Formulario de contacto
 * - Información de contacto
 * - Responsive design
 * 
 * Responsive breakpoints:
 * - Desktop: > 992px
 * - Tablet: 768px - 992px  
 * - Mobile: < 768px
 * 
 * Autor: Sistema ANFDGAC
 * Fecha: {{ date('Y-m-d') }}
 */

/* ========================================
   Variables CSS personalizadas
   ======================================== */
:root {
    /* Colores principales del formulario */
    --formulario-primary: #153547;
    --formulario-secondary: #2c5f7a;
    --formulario-accent: #4a90a4;
    --formulario-light: #f8f9fa;
    --formulario-dark: #0d1b23;
    
    /* Colores de texto */
    --formulario-text-primary: #2c3e50;
    --formulario-text-secondary: #5a6c7d;
    --formulario-text-light: #7f8c8d;
    
    /* Estados del formulario */
    --formulario-success: #28a745;
    --formulario-error: #e74c3c;
    --formulario-warning: #ffc107;
    --formulario-info: #17a2b8;
    
    /* Espaciado */
    --formulario-spacing-xs: 0.5rem;
    --formulario-spacing-sm: 1rem;
    --formulario-spacing-md: 1.5rem;
    --formulario-spacing-lg: 2rem;
    --formulario-spacing-xl: 3rem;
    
    /* Tipografía */
    --formulario-font-family: 'Montserrat', sans-serif;
    --formulario-font-size-base: 1rem;
    --formulario-font-size-sm: 0.875rem;
    --formulario-font-size-lg: 1.125rem;
    --formulario-font-size-xl: 1.25rem;
    
    /* Sombras */
    --formulario-shadow-sm: 0 2px 4px rgba(21, 53, 71, 0.1);
    --formulario-shadow-md: 0 4px 8px rgba(21, 53, 71, 0.15);
    --formulario-shadow-lg: 0 8px 16px rgba(21, 53, 71, 0.2);
    --formulario-shadow-xl: 0 8px 24px rgba(0, 0, 0, 0.1);
    
    /* Bordes */
    --formulario-border-radius: 8px;
    --formulario-border-radius-lg: 12px;
    --formulario-border-color: #e9ecef;
}

/* ========================================
   Layout principal
   ======================================== */
.main-content {
    padding: var(--formulario-spacing-lg) 0;
    min-height: calc(100vh - 200px);
    background: linear-gradient(135deg, 
        var(--formulario-light) 0%, 
        #ffffff 50%, 
        var(--formulario-light) 100%);
}

/* ========================================
   Breadcrumb de navegación
   ======================================== */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--formulario-spacing-xs);
    margin-bottom: var(--formulario-spacing-lg);
    padding: var(--formulario-spacing-sm);
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--formulario-border-radius);
    box-shadow: var(--formulario-shadow-sm);
    font-size: var(--formulario-font-size-sm);
}

.breadcrumb a {
    color: var(--formulario-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    color: var(--formulario-secondary);
}

.breadcrumb-separator {
    color: var(--formulario-text-light);
    font-weight: bold;
}

.breadcrumb-current {
    color: var(--formulario-text-primary);
    font-weight: 600;
}

/* ========================================
   Header de contacto
   ======================================== */
.contact-header {
    text-align: center;
    margin-bottom: var(--formulario-spacing-xl);
    padding: var(--formulario-spacing-lg);
    background: linear-gradient(135deg, 
        var(--formulario-primary) 0%, 
        var(--formulario-secondary) 100%);
    color: white;
    border-radius: var(--formulario-border-radius-lg);
    box-shadow: var(--formulario-shadow-lg);
    position: relative;
    overflow: hidden;
}

.contact-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
    opacity: 0.3;
}

.contact-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0 0 1rem 0;
    position: relative;
    z-index: 1;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.contact-header p {
    font-size: var(--formulario-font-size-lg);
    opacity: 0.9;
    margin: 0;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    line-height: 1.6;
}

/* ========================================
   Grid de contacto
   ======================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--formulario-spacing-xl);
    align-items: start;
}

/* ========================================
   Formulario de contacto
   ======================================== */
.contact-form {
    background: white;
    padding: 2.5rem;
    border-radius: var(--formulario-border-radius-lg);
    box-shadow: var(--formulario-shadow-xl);
    border: 1px solid var(--formulario-border-color);
    position: relative;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--formulario-spacing-md);
    margin-bottom: var(--formulario-spacing-md);
}

.form-group {
    margin-bottom: var(--formulario-spacing-md);
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: var(--formulario-spacing-xs);
    font-weight: 600;
    color: var(--formulario-text-primary);
    font-size: 0.95rem;
    font-family: var(--formulario-font-family);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--formulario-border-color);
    border-radius: var(--formulario-border-radius);
    font-size: var(--formulario-font-size-base);
    font-family: var(--formulario-font-family);
    transition: all 0.3s ease;
    background-color: #fafbfc;
    box-sizing: border-box;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--formulario-primary);
    background-color: white;
    box-shadow: 0 0 0 3px rgba(21, 53, 71, 0.1);
    transform: translateY(-1px);
}

.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover {
    border-color: var(--formulario-secondary);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
    line-height: 1.6;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--formulario-text-light);
    opacity: 0.7;
}

/* ========================================
   Checkboxes personalizados
   ======================================== */
.checkbox-group {
    position: relative;
    margin-bottom: var(--formulario-spacing-md);
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    font-size: var(--formulario-font-size-sm);
    line-height: 1.5;
    color: var(--formulario-text-secondary);
    font-family: var(--formulario-font-family);
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 40px;
    height: 40px;
    border: 4px solid var(--formulario-primary);
    border-radius: 4px;
    position: relative;
    flex-shrink: 0;
    margin-top: 2px;
    transition: all 0.3s ease;
    background: #153547;
}

.checkbox-label:hover .checkmark {
    border-color: var(--formulario-secondary);
    box-shadow: 0 2px 4px rgba(21, 53, 71, 0.1);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background-color: var(--formulario-primary);
    border-color: var(--formulario-primary);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-weight: bold;
    font-size: 12px;
}

.checkbox-label a {
    color: var(--formulario-primary);
    text-decoration: none;
    font-weight: 500;
}

.checkbox-label a:hover {
    text-decoration: underline;
}

/* ========================================
   Mensajes de error
   ======================================== */
.error-message {
    display: block;
    color: var(--formulario-error);
    font-size: 0.85rem;
    margin-top: 0.25rem;
    min-height: 1.2rem;
    font-family: var(--formulario-font-family);
    font-weight: 500;
}

/* Estados de validación */
.form-group input.valid,
.form-group select.valid,
.form-group textarea.valid {
    border-color: var(--formulario-success);
}

.form-group input.invalid,
.form-group select.invalid,
.form-group textarea.invalid {
    border-color: var(--formulario-error);
}

/* ========================================
   Botones de acción
   ======================================== */
.form-actions {
    display: flex;
    gap: var(--formulario-spacing-sm);
    justify-content: flex-end;
    margin-top: var(--formulario-spacing-lg);
    padding-top: var(--formulario-spacing-lg);
    border-top: 1px solid var(--formulario-border-color);
}

.btn-submit,
.btn-reset {
    display: inline-flex;
    align-items: center;
    gap: var(--formulario-spacing-xs);
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--formulario-border-radius);
    font-family: var(--formulario-font-family);
    font-weight: 600;
    font-size: var(--formulario-font-size-base);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-submit {
    background: linear-gradient(135deg, 
        var(--formulario-primary) 0%, 
        var(--formulario-secondary) 100%);
    color: white;
    box-shadow: var(--formulario-shadow-md);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--formulario-shadow-lg);
}

.btn-submit:active {
    transform: translateY(0);
}

.btn-reset {
    background: #6c757d;
    color: white;
    box-shadow: var(--formulario-shadow-sm);
}

.btn-reset:hover {
    background: #5a6268;
    transform: translateY(-2px);
    box-shadow: var(--formulario-shadow-md);
}

/* ========================================
   Sección de información de contacto
   ======================================== */
.contact-info-section {
    display: flex;
    flex-direction: column;
    gap: var(--formulario-spacing-md);
}

.contact-card {
    background: white;
    padding: var(--formulario-spacing-lg);
    border-radius: var(--formulario-border-radius-lg);
    box-shadow: var(--formulario-shadow-md);
    border: 1px solid var(--formulario-border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--formulario-shadow-lg);
}

.contact-card-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: var(--formulario-spacing-md);
    padding-bottom: var(--formulario-spacing-sm);
    border-bottom: 2px solid var(--formulario-light);
}

.contact-card-header i {
    font-size: 1.5rem;
    color: var(--formulario-primary);
}

.contact-card-header h3 {
    margin: 0;
    color: var(--formulario-text-primary);
    font-size: var(--formulario-font-size-xl);
    font-family: var(--formulario-font-family);
    font-weight: 600;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--formulario-spacing-sm);
    margin-bottom: var(--formulario-spacing-md);
    padding: var(--formulario-spacing-sm);
    background: var(--formulario-light);
    border-radius: var(--formulario-border-radius);
    border-left: 4px solid var(--formulario-primary);
    transition: all 0.3s ease;
}

.contact-item:hover {
    background: #e9ecef;
    transform: translateX(4px);
}

.contact-item:last-child {
    margin-bottom: 0;
}

.contact-item i {
    font-size: 1.25rem;
    color: var(--formulario-primary);
    margin-top: 2px;
    flex-shrink: 0;
}

.contact-item h4 {
    margin: 0 0 var(--formulario-spacing-xs) 0;
    font-size: var(--formulario-font-size-base);
    font-weight: 600;
    color: var(--formulario-text-primary);
    font-family: var(--formulario-font-family);
}

.contact-item p {
    margin: 0;
    color: var(--formulario-text-secondary);
    line-height: 1.5;
    font-family: var(--formulario-font-family);
}

.contact-item a {
    color: var(--formulario-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: var(--formulario-secondary);
    text-decoration: underline;
}

/* ========================================
   Enlaces de redes sociales
   ======================================== */
.social-links-contact {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.social-link {
    display: flex;
    align-items: center;
    gap: var(--formulario-spacing-sm);
    padding: var(--formulario-spacing-sm);
    background: var(--formulario-light);
    border-radius: var(--formulario-border-radius);
    text-decoration: none;
    color: var(--formulario-text-primary);
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
    font-family: var(--formulario-font-family);
    font-weight: 500;
}

.social-link:hover {
    background: var(--formulario-primary);
    color: white;
    border-left-color: var(--formulario-accent);
    transform: translateX(8px);
}

.social-link i {
    font-size: 1.25rem;
    width: 24px;
    text-align: center;
    flex-shrink: 0;
}

/* ========================================
   Responsive Design
   ======================================== */

/* Tablet - 768px a 992px */
@media (max-width: 992px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--formulario-spacing-lg);
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: var(--formulario-spacing-sm);
    }
    
    .contact-header h1 {
        font-size: 2rem;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .btn-submit,
    .btn-reset {
        width: 100%;
        justify-content: center;
    }
    
    .contact-form {
        padding: var(--formulario-spacing-lg);
    }
    
    .contact-card {
        padding: var(--formulario-spacing-lg);
    }
}

/* Mobile - menos de 768px */
@media (max-width: 768px) {
    .main-content {
        padding: var(--formulario-spacing-sm) 0;
    }
    
    .contact-form {
        padding: var(--formulario-spacing-md);
    }
    
    .contact-card {
        padding: var(--formulario-spacing-md);
    }
    
    .contact-header {
        padding: var(--formulario-spacing-md);
    }
    
    .contact-header h1 {
        font-size: 1.75rem;
    }
    
    .breadcrumb {
        padding: 0.75rem;
    }
    
    .form-row {
        margin-bottom: var(--formulario-spacing-sm);
    }
    
    .form-group {
        margin-bottom: var(--formulario-spacing-sm);
    }
    
    .form-actions {
        margin-top: var(--formulario-spacing-md);
        padding-top: var(--formulario-spacing-md);
    }
    
    .contact-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--formulario-spacing-xs);
    }
    
    .contact-item i {
        margin-top: 0;
    }
}

/* Mobile pequeño - menos de 480px */
@media (max-width: 480px) {
    .contact-header h1 {
        font-size: 1.5rem;
    }
    
    .contact-header p {
        font-size: var(--formulario-font-size-base);
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 0.75rem;
    }
    
    .btn-submit,
    .btn-reset {
        padding: 0.875rem 1.5rem;
        font-size: var(--formulario-font-size-sm);
    }
    
    .breadcrumb {
        font-size: 0.8rem;
        padding: 0.5rem;
    }
    
    .contact-card-header h3 {
        font-size: var(--formulario-font-size-lg);
    }
}

/* ========================================
   Animaciones
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.contact-form {
    animation: fadeInUp 0.8s ease-out;
}

.contact-card {
    animation: slideInLeft 0.8s ease-out;
}

.contact-card:nth-child(2) {
    animation-delay: 0.2s;
}

/* ========================================
   Estados de carga
   ======================================== */
.btn-submit.loading {
    pointer-events: none;
    opacity: 0.7;
}

.btn-submit.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    margin: auto;
    border: 2px solid transparent;
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* ========================================
   Accesibilidad
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    .contact-form,
    .contact-card,
    .contact-item,
    .social-link,
    .btn-submit,
    .btn-reset {
        animation: none;
        transition: none;
    }
    
    .contact-item:hover,
    .social-link:hover,
    .btn-submit:hover,
    .btn-reset:hover {
        transform: none;
    }
}

/* Mejoras para lectores de pantalla */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ========================================
   Impresión
   ======================================== */
@media print {
    .main-content {
        background: white;
        padding: 0;
    }
    
    .breadcrumb,
    .social-links-contact,
    .form-actions {
        display: none;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form,
    .contact-card {
        box-shadow: none;
        border: 1px solid #ccc;
        break-inside: avoid;
    }
    
    .contact-header {
        background: #f0f0f0 !important;
        color: black !important;
    }
}