.zard-otp-container {
    padding: 40px 30px;
    max-width: 400px;
    width: 100%;
    box-sizing: border-box;
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
    background: #fff;
    margin: 0 auto !important;
}

.zard-otp-form {
    background: #ffffff;
}

.zard-otp-form h2 {
    font-size: 22px;
    font-weight: 600;
    text-align: center;
    margin: 0 0 10px 0;
    color: #333;
}

.zard-description {
    font-size: 14px;
    text-align: center;
    color: #666;
    margin: 0 0 25px 0;
}

.zard-form-group {
    margin-bottom: 15px;
}

.zard-input {
    width: 100%;
    height: 48px;
    padding: 0 15px;
    font-size: 15px;
    border: 1px solid #ddd;
    box-sizing: border-box;
    outline: none;
    transition: 0.3s;
    text-align: center;
    margin-bottom: 15px;
}

.zard-input:focus {
    border-color: #4CAF50;
}

.zard-button {
    width: 100%;
    height: 48px;
    font-size: 15px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: 0.3s;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #4CAF50;
    color: white;
}

.zard-button:hover {
    background: #45a049;
}

.zard-button:disabled {
    background: #cccccc;
    cursor: not-allowed;
}

.zard-link-button {
    display: block;
    width: 100%;
    text-align: center;
    margin-top: 15px;
    font-size: 13px;
    color: #777;
    background: none;
    border: none;
    cursor: pointer;
    text-decoration: none;
    padding: 0;
}

.zard-link-button:disabled {
    color: #999;
    cursor: not-allowed;
}

.zard-resend-container {
    text-align: center;
    margin: 15px 0;
}

.zard-message {
    padding: 10px;
    margin-bottom: 15px;
    font-size: 13px;
    display: none;
    text-align: center;
}

.zard-message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}

.zard-message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}

#zard-phone-display {
    font-weight: bold;
    color: #4CAF50;
}

#zard-change-phone-btn {
    display: block;
    margin: 15px auto 0;
}

.zard-toggle-link {
    text-align: center;
    margin-top: 15px;
}

.zard-toggle-link button {
    background: none;
    border: none;
    color: #4CAF50;
    cursor: pointer;
    font-size: 13px;
    text-decoration: underline;
    padding: 0;
}

.zard-modal {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: none;
}

.zard-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
}

.zard-modal-content {
    position: relative;
    background: #ffffff;
    max-width: 500px;
    margin: 80px auto;
    padding: 40px 30px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    z-index: 10000;
}

.zard-modal-content h2 {
    font-size: 22px;
    font-weight: 600;
    text-align: center;
    margin: 0 0 10px 0;
    color: #333;
}

.zard-modal-description {
    font-size: 14px;
    text-align: center;
    color: #666;
    margin: 0 0 25px 0;
}

#zard-checkout-otp-container,
#zard-checkout-register-container {
    margin-top: 0;
}