/*
Estilos para el Sistema de Autenticación
=======================================

Estilos personalizados para las páginas de login, registro y recuperación
de contraseña del sistema empresarial AMV.
*/

/* Tema oscuro corporativo para coincidir con el dashboard */

/* Variables de colores corporativos - Tema Oscuro */
:root {
    --primary-color: #3b82f6;
    --primary-dark: #2563eb;
    --secondary-color: #6366f1;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #06b6d4;
    --light-color: #f8fafc;
    --dark-color: #1f2937;
    --darker-color: #111827;
    --text-light: #f9fafb;
    --text-muted: #9ca3af;
    --border-color: #374151;
    --shadow-color: rgba(0, 0, 0, 0.25);
    --card-bg: #1f2937;
    --input-bg: #374151;
}

/* Estilos generales del cuerpo - Tema Oscuro */
body.auth-body {
    background: var(--darker-color);
    background-image: 
        radial-gradient(circle at 25% 25%, #374151 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, #1f2937 0%, transparent 50%);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    color: var(--text-light);
}

/* Contenedor principal */
.auth-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 2rem 0;
}

/* Header de autenticación */
.auth-header {
    margin-bottom: 2rem;
}

.auth-logo {
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.auth-title {
    font-weight: 700;
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.auth-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 0;
}

/* Contenido principal */
.auth-content {
    flex: 1;
    display: flex;
    align-items: center;
}

/* Tarjeta de autenticación - Tema Oscuro */
.auth-card {
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 10px 25px var(--shadow-color);
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.auth-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 35px var(--shadow-color);
    border-color: var(--primary-color);
}

.auth-card-header {
    background: linear-gradient(135deg, var(--color-primario), #0056b3);
    color: white;
    padding: 1.5rem;
    text-align: center;
}

.auth-card-title {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.auth-card-body {
    padding: 2rem;
}

.auth-card-footer {
    background: var(--color-fondo);
    padding: 1.5rem;
    border-top: 1px solid #dee2e6;
}

/* Estilos de formularios */
.form-label {
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

/* Campos de entrada - Tema Oscuro */
.form-control {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    background-color: var(--input-bg) !important;
    color: var(--text-light) !important;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.1);
    background-color: var(--input-bg) !important;
    color: var(--text-light) !important;
    outline: none;
}

.form-control.is-invalid {
    border-color: var(--danger-color);
    box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.1);
    color: var(--text-light) !important;
}

.form-control.is-valid {
    border-color: var(--success-color);
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.1);
    color: var(--text-light) !important;
}

.form-control::placeholder {
    color: var(--text-muted) !important;
}

/* Asegurar que todos los inputs tengan texto claro */
input.form-control,
textarea.form-control,
select.form-control {
    color: var(--text-light) !important;
    background-color: var(--input-bg) !important;
}

/* Estados específicos para inputs */
input.form-control:focus,
textarea.form-control:focus,
select.form-control:focus {
    color: var(--text-light) !important;
    background-color: var(--input-bg) !important;
}

.form-control:focus + .input-group-text,
.input-group .form-control:focus ~ .input-group-text {
    border-color: var(--primary-color);
}

.input-group-text {
    background: var(--input-bg);
    border: 1px solid #ced4da;
    color: var(--text-light);
    font-size: 1rem;
}

/* Botones - Tema Oscuro */
.btn {
    border-radius: 6px;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
    background-color: transparent;
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    transform: translateY(-1px);
}

.btn-outline-secondary {
    border-color: #ced4da;
    color: var(--color-texto-claro);
}

/* Alertas personalizadas */
.alert {
    border-radius: var(--radio-borde);
    border: none;
    font-weight: 500;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.alert-success {
    background: linear-gradient(135deg, #d4edda, #c3e6cb);
    color: #155724;
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da, #f1b0b7);
    color: #721c24;
}

.alert-warning {
    background: linear-gradient(135deg, #fff3cd, #ffeaa7);
    color: #856404;
}

.alert-info {
    background: linear-gradient(135deg, #d1ecf1, #b8daff);
    color: #0c5460;
}

/* Divisor de autenticación - Mejorado */
.auth-divider {
    margin: 1.5rem 0;
    text-align: center;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-divider::before {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
    margin-right: 1rem;
}

.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
    margin-left: 1rem;
}

.auth-divider span {
    color: var(--text-muted);
    font-size: 0.9rem;
    white-space: nowrap;
    font-weight: 500;
}

/* Indicador de fuerza de contraseña */
.password-strength .progress {
    border-radius: 3px;
    overflow: hidden;
}

.password-strength .progress-bar {
    transition: all 0.3s ease;
}

/* Checkbox personalizado */
.form-check-input:checked {
    background-color: var(--color-primario);
    border-color: var(--color-primario);
}

.form-check-label {
    font-size: 0.9rem;
    color: var(--color-texto);
}

/* Enlaces */
a {
    color: var(--color-primario);
    text-decoration: none;
    transition: color 0.15s ease-in-out;
}

a:hover {
    color: #0056b3;
    text-decoration: underline;
}

/* Encabezado de la tarjeta - Tema Oscuro */
.auth-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--border-color);
}

.auth-title {
    color: var(--text-light);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.auth-title i {
    color: var(--primary-color);
    font-size: 2rem;
}

.auth-subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin: 0;
}

/* Footer - Tema Oscuro */
.auth-footer {
    margin-top: 2rem;
    color: white;
    text-align: center;
}

.auth-footer-text {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.auth-footer-note {
    font-size: 0.8rem;
    opacity: 0.7;
    margin-bottom: 0;
}

/* Estados de validación */
.is-invalid {
    border-color: var(--color-peligro);
}

.is-valid {
    border-color: var(--color-exito);
}

.invalid-feedback {
    display: block;
    font-size: 0.875rem;
    color: var(--color-peligro);
    margin-top: 0.25rem;
}

.valid-feedback {
    display: block;
    font-size: 0.875rem;
    color: var(--color-exito);
    margin-top: 0.25rem;
}

/* Texto de ayuda */
.form-text {
    font-size: 0.875rem;
    color: var(--color-texto-claro);
    margin-top: 0.25rem;
}

/* Responsive */
@media (max-width: 768px) {
    .auth-container {
        padding: 1rem;
    }
    
    .auth-title {
        font-size: 2rem;
    }
    
    .auth-card-body {
        padding: 1.5rem;
    }
    
    .auth-card-footer {
        padding: 1rem;
    }
}

@media (max-width: 576px) {
    .auth-title {
        font-size: 1.75rem;
    }
    
    .auth-card-body {
        padding: 1rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
}

/* Animaciones adicionales */
.btn:active {
    transform: translateY(0);
}

.form-control:focus {
    animation: pulse 0.3s ease-out;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.02); }
    100% { transform: scale(1); }
}

/* Loading state */
.btn.loading {
    position: relative;
    color: transparent;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 1rem;
    height: 1rem;
    top: 50%;
    left: 50%;
    margin-left: -0.5rem;
    margin-top: -0.5rem;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Estilos para modo oscuro (futuro) */
@media (prefers-color-scheme: dark) {
    .auth-card {
        background: #2d3748;
        color: #e2e8f0;
    }
    
    .form-control {
        background: #4a5568;
        border-color: #718096;
        color: #e2e8f0;
    }
    
    .form-control:focus {
        background: #4a5568;
        border-color: var(--color-primario);
    }
    
    .input-group-text {
        background: #4a5568;
        border-color: #718096;
        color: #a0aec0;
    }
}