/* ============================================
   LECTOR DE CORREOS - ESTILOS FRONTEND
   Diseño Moderno y Elegante
   ============================================ */

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    --dark-color: #1f2937;
    --light-color: #f9fafb;
    --border-color: #e5e7eb;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
}

/* ============================================
   CONTENEDOR PRINCIPAL
   ============================================ */

.lector-correos-container {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    max-width: 900px;
    margin: 30px auto;
    padding: 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* ============================================
   FORMULARIO
   ============================================ */

.lector-correos-form {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: 1.5rem;
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    flex-wrap: wrap;
}

.lector-correos-form input[type="text"],
.lector-correos-form input[type="email"] {
    flex: 1;
    min-width: 250px;
    padding: 0.875rem 1.25rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
    color: var(--text-primary);
}

.lector-correos-form input[type="text"]:focus,
.lector-correos-form input[type="email"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.lector-correos-form input[type="text"]::placeholder,
.lector-correos-form input[type="email"]::placeholder {
    color: var(--text-secondary);
}

/* ============================================
   BOTONES
   ============================================ */

.lector-correos-container button[type="submit"],
.lector-correos-container .btn-submit {
    padding: 0.875rem 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
}

.lector-correos-container button[type="submit"]:hover,
.lector-correos-container .btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

.lector-correos-container button[type="submit"]:active,
.lector-correos-container .btn-submit:active {
    transform: translateY(0);
}

/* ============================================
   RESULTADOS
   ============================================ */

.correo-resultado {
    margin-top: 1.5rem;
}

.correos-container {
    max-width: 100%;
    margin: 0;
    padding: 0;
}

.correo-container {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.correo-container:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.correo-container strong {
    color: var(--text-primary);
    font-weight: 600;
    display: inline-block;
    min-width: 80px;
}

.correo-container > div {
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

.correo-container button {
    background: var(--info-color);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 1rem;
    display: block;
    width: 100%;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.correo-container button:hover {
    background: #2563eb;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.correo-content {
    margin-top: 1rem;
    max-height: 500px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    background: var(--light-color);
}

.correo-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
}

.correo-content a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.correo-content a:hover {
    text-decoration: underline;
}

/* ============================================
   ALERTAS Y MENSAJES
   ============================================ */

.correo-resultado .error,
.correo-resultado .alert {
    max-width: 100%;
    margin: 1.5rem auto;
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius-md);
    border-left: 4px solid;
    box-shadow: var(--shadow-sm);
    font-weight: 500;
}

.correo-resultado .error {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--danger-color);
    color: #991b1b;
}

.correo-resultado .alert {
    background: rgba(245, 158, 11, 0.1);
    border-color: var(--warning-color);
    color: #92400e;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    .lector-correos-container {
        margin: 15px;
        padding: 1.5rem;
    }

    .lector-correos-form {
        flex-direction: column;
        align-items: stretch;
    }

    .lector-correos-form input[type="text"],
    .lector-correos-form input[type="email"] {
        min-width: 100%;
        width: 100%;
    }

    .lector-correos-container button[type="submit"],
    .lector-correos-container .btn-submit {
        width: 100%;
    }

    .correo-container {
        padding: 1rem;
    }

    .correo-content {
        padding: 1rem;
        max-height: 400px;
    }
}

/* ============================================
   ANIMACIONES
   ============================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.correo-container {
    animation: fadeIn 0.3s ease;
}

/* ============================================
   UTILIDADES
   ============================================ */

.lector-text-center {
    text-align: center;
}

.lector-mt-1 { margin-top: 0.5rem; }
.lector-mt-2 { margin-top: 1rem; }
.lector-mt-3 { margin-top: 1.5rem; }
.lector-mb-1 { margin-bottom: 0.5rem; }
.lector-mb-2 { margin-bottom: 1rem; }
.lector-mb-3 { margin-bottom: 1.5rem; }