.mach34-newsletter-wrapper {
    width: 100%; max-width: 480px; margin: 25px auto; padding: 25px;
    border: 1px solid #e5e7eb; border-radius: 8px; background: #ffffff;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05); font-family: sans-serif;
}
.mach34-title { text-align: center; margin: 0 0 15px 0; color: #1f2937; font-size: 1.2rem; }
.mach34-input-group { display: flex; gap: 8px; }
.mach34-input-group input[type="email"] { flex: 1; padding: 10px; border: 1px solid #d1d5db; border-radius: 4px; font-size: 0.95rem; }
.mach34-input-group button { padding: 10px 18px; background: #1f2937; color: #ffffff; border: none; border-radius: 4px; cursor: pointer; font-weight: 500; }
.mach34-input-group button:hover { background: #111827; }
.mach34-message { margin-top: 12px; font-size: 0.9rem; text-align: center; font-weight: 500; }
.mach34-message.success { color: #10b981; }
.mach34-message.error { color: #ef4444; }