.whatsapp-limiter-form {
    max-width: 500px;
    margin: 20px auto;
    padding: 30px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border: 1px solid #e1e5e9;
}

.whatsapp-limiter-form h3 {
    text-align: center;
    margin-bottom: 25px;
    color: #25d366;
    font-size: 24px;
    font-weight: 600;
}

.whatsapp-limiter-form .form-group {
    margin-bottom: 20px;
}

.whatsapp-limiter-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
    font-size: 14px;
}

.whatsapp-limiter-form input[type="tel"] {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.whatsapp-limiter-form input[type="tel"]:focus {
    outline: none;
    border-color: #25d366;
    box-shadow: 0 0 0 3px rgba(37, 211, 102, 0.1);
}

.whatsapp-limiter-form button {
    width: 100%;
    padding: 14px 20px;
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.whatsapp-limiter-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.3);
}

.whatsapp-limiter-form button:active {
    transform: translateY(0);
}

.whatsapp-limiter-form button:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.whatsapp-limiter-form .message {
    margin-top: 15px;
    padding: 12px 16px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    animation: slideIn 0.3s ease;
}

.whatsapp-limiter-form .message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.whatsapp-limiter-form .message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

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

/* Responsive tasarım */
@media (max-width: 768px) {
    .whatsapp-limiter-form {
        margin: 10px;
        padding: 20px;
    }
    
    .whatsapp-limiter-form h3 {
        font-size: 20px;
    }
}

/* Loading animasyonu */
.whatsapp-limiter-form button:disabled::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    margin: auto;
    border: 2px solid transparent;
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
}

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

/* WhatsApp tema renkleri */
.whatsapp-limiter-form {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
}

.whatsapp-limiter-form::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, #25d366, #128c7e, #25d366);
    border-radius: 14px;
    z-index: -1;
    opacity: 0.1;
}

.whatsapp-limiter-form {
    position: relative;
}