.stp-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 999999;
    justify-content: center;
    align-items: center;
    padding: 20px;
    box-sizing: border-box;
}
.stp-overlay.active {
    display: flex;
}
.stp-modal {
    background: #fff;
    border-radius: 8px;
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}
.stp-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: #666;
    line-height: 1;
    padding: 5px;
}
.stp-close:hover {
    color: #000;
}
.stp-content {
    padding: 30px;
}
.stp-title {
    margin: 0 0 15px;
    font-size: 24px;
    color: #333;
}
.stp-description {
    margin: 0 0 25px;
    color: #666;
    line-height: 1.6;
}
.stp-form-group {
    margin-bottom: 20px;
}
.stp-form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: #333;
}
.stp-form-group input,
.stp-form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    box-sizing: border-box;
}
.stp-form-group input:focus,
.stp-form-group textarea:focus {
    outline: none;
    border-color: #f7941d;
}
.stp-form-group textarea {
    min-height: 120px;
    resize: vertical;
}
.stp-turnstile {
    margin-bottom: 20px;
}
.stp-submit {
    background: #f7941d;
    color: #fff;
    border: none;
    padding: 14px 30px;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    transition: background 0.2s;
}
.stp-submit:hover {
    background: #e8850a;
}
.stp-submit:disabled {
    background: #ccc;
    cursor: not-allowed;
}
.stp-message {
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
    display: none;
}
.stp-message.error {
    background: #ffe6e6;
    color: #c00;
    display: block;
}
.stp-message.success {
    background: #e6ffe6;
    color: #060;
    display: block;
}
.stp-success-view {
    display: none;
    text-align: center;
    padding: 40px 30px;
}
.stp-success-view.active {
    display: block;
}
.stp-success-icon {
    font-size: 60px;
    color: #4caf50;
    margin-bottom: 20px;
}
.stp-form-view.hidden {
    display: none;
}