:root {
    --nk-pro-green: #3e4e3a;
    --nk-pro-gold: #c5a043;
    --nk-border-soft: #eef0f2;
    --nk-shadow-card: 0 4px 12px rgba(0,0,0,0.03);
    --nk-shadow-pop: 0 20px 40px rgba(0,0,0,0.08);
}

.nk-pro-calc { font-family: -apple-system, sans-serif; color: #1d1d1f; max-width: 1080px; margin: 40px auto; }
.nk-pro-container { display: flex; gap: 40px; align-items: flex-start; }
.nk-pro-left { flex: 1; min-width: 320px; }
.nk-pro-right { flex: 0 0 360px; position: sticky; top: 40px; }

.nk-pro-h2 { color: var(--nk-pro-green); font-size: 32px; font-weight: 700; margin-bottom: 30px; }
.nk-pro-section { margin-bottom: 60px; }
.nk-pro-label { display: block; font-size: 12px; font-weight: 700; color: #86868b; text-transform: uppercase; margin-bottom: 18px; letter-spacing: 0.5px; }

.nk-pro-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; }

.nk-pro-box { 
    background: #fff; border: 2px solid var(--nk-border-soft); padding: 30px 15px; 
    border-radius: 16px; text-align: center; cursor: pointer; transition: 0.2s; 
    font-size: 15px; font-weight: 600; box-shadow: var(--nk-shadow-card);
}
.nk-pro-box:hover { border-color: #d2d2d7; transform: translateY(-3px); }
.nk-pro-box.active { border-color: var(--nk-pro-green); background: #f4f7f3; color: var(--nk-pro-green); font-weight: 700; }

.nk-pro-stack { display: flex; flex-direction: column; gap: 15px; }

/* Basis-Style für Checkboxen */
.nk-pro-check { 
    background: #fff; border: 2px solid var(--nk-border-soft); padding: 30px; 
    border-radius: 16px; display: flex; justify-content: space-between; align-items: center; 
    cursor: pointer; transition: 0.2s; box-shadow: var(--nk-shadow-card);
}
.nk-pro-check:hover { transform: translateY(-2px); }
.nk-pro-check.active { border-color: var(--nk-pro-green); background: #f4f7f3; }

/* NEU: DNA Grid Layout (2 Spalten) */
.nk-dna-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }

/* DNA Cards speziell */
.dna-card { padding: 25px 20px; flex-direction: column; text-align: center; gap: 10px; }
.dna-card > div { width: 100%; }
.dna-card strong { font-size: 16px; display: block; margin-bottom: 5px; }

/* Der kleine Info-Link in der DNA Box */
.nk-info-link { 
    font-size: 12px; color: #86868b; text-decoration: none; border-bottom: 1px solid #ccc;
    padding-bottom: 1px; transition: 0.2s; display: inline-block;
}
.nk-info-link:hover { color: var(--nk-pro-gold); border-color: var(--nk-pro-gold); }

.nk-info strong { display: block; font-size: 16px; color: #1d1d1f; margin-bottom: 6px; }
.nk-info small { color: #86868b; font-size: 13px; }
.nk-pro-check-price { font-weight: 700; color: var(--nk-pro-green); font-size: 16px; }

/* Sidebar & Rest */
.nk-pro-card { background: #fff; padding: 35px; border-radius: 24px; box-shadow: var(--nk-shadow-pop); border: 1px solid var(--nk-border-soft); text-align: center; }
.nk-pro-res-label { font-weight: 600; color: #86868b; font-size: 14px; }
.nk-pro-total { font-size: 58px; font-weight: 800; color: var(--nk-pro-green); margin: 10px 0 5px 0; }
.nk-pro-subtext { color: #86868b; font-size: 13px; margin-bottom: 25px; }

.nk-pro-plan { background: #fbfbfb; padding: 20px; border-radius: 14px; text-align: left; margin: 25px 0; border: 1px solid #e5e5e5; }
.nk-pro-plan > strong { display: block; margin-bottom: 12px; color: var(--nk-pro-green); font-size: 14px; }
.nk-step-row { display: flex; gap: 10px; margin-bottom: 12px; align-items: flex-start; }
.nk-step-badge { background: var(--nk-pro-green); color: #fff; width: 20px; height: 20px; border-radius: 50%; font-size: 11px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 2px; font-weight: bold; }
.nk-step-content span { display: block; font-size: 13px; color: #333; line-height: 1.4; }
.nk-step-content small { display: block; font-size: 11px; color: #999; margin-top: 2px; }
.nk-gold-txt { color: var(--nk-pro-gold); font-weight: 700; }
.nk-bioniq-btn { display: inline-block; margin-top: 5px; font-size: 12px; font-weight: 600; color: var(--nk-pro-green); text-decoration: none; border-bottom: 1px solid var(--nk-pro-green); padding-bottom: 1px; transition: 0.2s; }
.nk-bioniq-btn:hover { color: var(--nk-pro-gold); border-color: var(--nk-pro-gold); }
.nk-pro-summary { text-align: left; font-size: 14px; list-style: none; padding: 20px 0; border-top: 1px solid #eee; margin: 0; }
.nk-pro-summary li { margin-bottom: 8px; display: flex; align-items: center; }
.nk-pro-summary li::before { content: "✓"; color: var(--nk-pro-green); font-weight: 900; margin-right: 10px; }
.nk-pro-btn { background: var(--nk-pro-gold); color: #fff; display: block; padding: 18px; border-radius: 16px; text-decoration: none; font-weight: 700; transition: 0.3s; box-shadow: 0 4px 15px rgba(197, 160, 67, 0.2); }
.nk-pro-btn:hover { transform: translateY(-3px); box-shadow: 0 8px 25px rgba(197, 160, 67, 0.3); }

@media (max-width: 900px) { .nk-pro-container { flex-direction: column; } .nk-pro-right { position: static; } .nk-dna-grid { grid-template-columns: 1fr; } }