.ngkeks-calc-wrapper {
    max-width: 460px;
    margin: 20px auto;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    overflow: hidden;
}
.ngkeks-calc-header {
    background: #0b1e3f; /* Premium deep blue background match */
    padding: 24px;
    color: #ffffff;
    text-align: center;
}
.ngkeks-brand {
    color: #e5c158; /* Soft golden tint text match */
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 8px;
}
.ngkeks-calc-header h2 {
    color: #ffffff;
    font-size: 22px;
    margin: 0 0 6px 0;
    font-weight: 600;
}
.ngkeks-calc-header p {
    color: #cbd5e1;
    font-size: 13px;
    margin: 0;
}
.ngkeks-calc-body {
    padding: 24px;
}
.ngkeks-field-group {
    margin-bottom: 20px;
}
.ngkeks-field-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: #475569;
    margin-bottom: 8px;
}
/* Premium segment style matching layout buttons perfectly */
.ngkeks-toggle-group {
    display: flex;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    overflow: hidden;
}
.ngkeks-toggle-btn {
    flex: 1;
    background: #ffffff;
    border: none;
    border-right: 1px solid #cbd5e1;
    padding: 12px 8px;
    font-size: 14px;
    font-weight: 600;
    color: #1e293b;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}
.ngkeks-toggle-btn:last-child {
    border-right: none;
}
.ngkeks-toggle-btn.active {
    background: #0b1e3f; /* Highlight color active state matching dashboard mockup */
    color: #ffffff;
}
.ngkeks-input-container {
    display: flex;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    overflow: hidden;
    background: #ffffff;
}
.ngkeks-input-container input {
    flex: 1;
    border: none;
    padding: 12px 16px;
    font-size: 16px;
    color: #1e293b;
    outline: none;
}
.ngkeks-unit {
    background: #f8fafc;
    border-left: 1px solid #cbd5e1;
    padding: 12px 16px;
    color: #64748b;
    font-size: 14px;
    font-weight: 500;
}
.ngkeks-hint {
    font-size: 12px;
    color: #64748b;
    margin: 6px 0 0 0;
}
#ngkeks-submit-btn {
    width: 100%;
    background: #cba135; /* Earthy gold element accent color button matches UI screen input image */
    color: #ffffff;
    border: none;
    border-radius: 6px;
    padding: 14px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.2s ease;
    text-transform: capitalize;
}
#ngkeks-submit-btn:hover {
    background: #b58d2a;
}
.ngkeks-result-panel {
    margin-top: 20px;
    padding: 16px;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: 6px;
    text-align: center;
}
.ngkeks-result-panel h4 {
    margin: 0 0 4px 0;
    color: #166534;
    font-size: 13px;
    font-weight: 600;
}
.ngkeks-price-output {
    font-size: 26px;
    font-weight: 800;
    color: #15803d;
}
.ngkeks-disclaimer {
    margin: 6px 0 0 0;
    font-size: 11px;
    color: #166534;
}