body {
    background-color: #f7f9fa;
    margin: 0;
    padding: 0;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}
#dk-form-wrapper {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    width: 90%;
    max-width: 480px;
    max-height: 95vh;
    max-height: 95dvh;
    background: #ffffff;
    border-radius: 24px;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.08);
    padding: clamp(20px, 4vh, 40px) clamp(20px, 5vw, 40px);
    box-sizing: border-box;
    position: relative;
    display: flex;
    flex-direction: column;
}
#dk-progress-container {
    width: 100%;
    height: 6px;
    background: #e9ecef;
    border-radius: 3px;
    margin-bottom: 20px;
    flex-shrink: 0;
}
#dk-progress {
    height: 100%;
    background: #743689;
    width: 0%;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.dk-step {
    display: none;
    text-align: center;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    flex: 1;
    flex-direction: column;
    min-height: 0; /* crucial for flex shrinking */
}
.dk-step.active {
    display: flex !important;
    opacity: 1;
    transform: translateY(0);
}
.dk-step.fade-out {
    opacity: 0;
    transform: translateY(-10px);
}


.dk-step img {
    flex: 1;
    min-height: 0;
    max-height: 400px; 
    width: 100%;
    object-fit: contain;
    margin: 0 auto 20px;
}

.dk-step h2 {
    font-size: clamp(20px, 3vh, 26px);
    font-weight: 700;
    color: #111111;
    margin: 0 0 10px;
    line-height: 1.3;
    flex-shrink: 0;
}
.dk-step p {
    font-size: clamp(14px, 2vh, 16px);
    color: #6c757d;
    margin: 0 0 20px;
    line-height: 1.5;
    flex-shrink: 0;
}
.dk-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
    flex-shrink: 0;
}
.dk-option {
    padding: 14px 20px;
    border: 1px solid #dcdcdc;
    border-radius: 4px;
    font-size: 15px;
    font-weight: 500;
    color: #333333;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
    background: #fff;
}
.dk-option:hover {
    border-color: #743689;
    background: #fdfafc;
}
.dk-option.selected {
    border-color: #743689;
    background: #743689;
    color: #fff;
    box-shadow: 0 4px 12px rgba(116, 54, 137, 0.2);
}
.dk-btn {
    display: inline-block;
    width: 100%;
    padding: 16px 0;
    background: #743689;
    color: #fff;
    border: none;
    border-radius: 16px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    margin-top: auto;
    flex-shrink: 0;
}
.dk-btn:hover {
    background: #5e2b6f;
    transform: translateY(-1px);
}
#dk-contact-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex-shrink: 0;
}
#dk-contact-form input {
    padding: 16px 15px;
    border: 1px solid #dcdcdc;
    border-radius: 4px;
    font-size: 15px;
    transition: border-color 0.2s;
    width: 100%;
    box-sizing: border-box;
    font-family: inherit;
}
#dk-contact-form input:focus {
    outline: none;
    border-color: #743689;
    box-shadow: 0 0 0 3px rgba(116, 54, 137, 0.1);
}
#dk-success-message {
    text-align: center;
    padding: 20px 0;
    margin: auto 0;
    flex-shrink: 0;
}
#dk-success-message h2 {
    font-size: clamp(24px, 4vh, 28px);
    color: #111;
    margin-bottom: 20px;
}
#dk-success-message p {
    font-size: clamp(14px, 2vh, 16px);
    color: #888;
}