/* NRVE Research Data & COA integration ----------------------------------- */
.nrve-research-wrap {
    --nrve-research-border: var(--nrve-border, #dedede);
    --nrve-research-muted: var(--nrve-grey, #666);
    width: 100%;
}
.nrve-coa-section,
.nrve-calculator {
    margin: 38px 0;
    padding: clamp(24px, 4vw, 42px);
    border: 1px solid var(--nrve-research-border);
    background: #fff;
}
.nrve-research-heading { margin-bottom: 16px; }
.nrve-research-eyebrow {
    display: block;
    margin-bottom: 8px;
    font-size: 10px;
    line-height: 1.2;
    font-weight: 800;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--nrve-research-muted);
}
.nrve-research-heading h3,
.nrve-coa-section h3,
.nrve-calculator h3 {
    margin: 0;
    font-size: clamp(1.35rem, 2.8vw, 2rem);
    line-height: 1.05;
    letter-spacing: -.035em;
    font-weight: 900;
    color: var(--nrve-black, #111);
}
.nrve-research-note {
    margin: 0 0 24px;
    padding: 14px 16px;
    border: 1px solid var(--nrve-research-border);
    border-left: 3px solid var(--nrve-black, #111);
    background: #f7f7f4;
    color: #444;
    font-size: 12px;
    line-height: 1.55;
}
.nrve-table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.nrve-coa-table { width: 100%; min-width: 760px; border-collapse: collapse; border: 1px solid var(--nrve-research-border); }
.nrve-coa-table th,
.nrve-coa-table td { padding: 14px 16px; border-bottom: 1px solid var(--nrve-research-border); text-align: left; vertical-align: top; }
.nrve-coa-table th {
    background: #f7f7f4;
    color: var(--nrve-black, #111);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
}
.nrve-coa-table td { color: #333; font-size: 13px; }
.nrve-current-badge {
    display: inline-flex;
    align-items: center;
    margin-left: 8px;
    padding: 3px 7px;
    background: var(--nrve-black, #111);
    color: #fff;
    font-size: 9px;
    line-height: 1;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
}
.nrve-coa-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    padding: 9px 13px;
    background: var(--nrve-black, #111);
    color: #fff !important;
    text-decoration: none !important;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: .07em;
    text-transform: uppercase;
}
.nrve-coa-button:hover { background: #333; color: #fff !important; }
.nrve-coa-notes td { background: #fbfbf8; font-size: 12px; color: var(--nrve-research-muted); }
.nrve-calc-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.nrve-calc-grid p { margin: 0; }
.nrve-calc-grid label {
    display: block;
    margin-bottom: 8px;
    color: var(--nrve-black, #111);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: .075em;
    text-transform: uppercase;
}
.nrve-calc-grid input,
.nrve-calc-grid select {
    box-sizing: border-box;
    width: 100%;
    min-height: 48px;
    padding: 12px 14px;
    border: 1px solid var(--nrve-research-border);
    border-radius: 0;
    background: #fff;
    color: var(--nrve-black, #111);
    font: inherit;
}
.nrve-calc-grid input:focus,
.nrve-calc-grid select:focus { outline: 2px solid var(--nrve-black, #111); outline-offset: 1px; }
.nrve-span-2 { grid-column: 1 / -1; }
.nrve-protocol-conditions,
.nrve-calc-results {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    margin-top: 24px;
    border: 1px solid var(--nrve-research-border);
    background: var(--nrve-research-border);
}
.nrve-protocol-conditions[hidden] { display: none; }
.nrve-protocol-conditions > div,
.nrve-calc-results > div { padding: 16px; background: #fff; }
.nrve-protocol-conditions span,
.nrve-protocol-conditions strong,
.nrve-calc-results span,
.nrve-calc-results strong { display: block; }
.nrve-protocol-conditions span,
.nrve-calc-results span {
    margin-bottom: 6px;
    color: var(--nrve-research-muted);
    font-size: 9px;
    font-weight: 800;
    letter-spacing: .07em;
    text-transform: uppercase;
}
.nrve-protocol-conditions strong,
.nrve-calc-results strong { color: var(--nrve-black, #111); font-size: 15px; line-height: 1.35; }
.nrve-preset-notes { margin: 18px 0 0; color: var(--nrve-research-muted); font-size: 13px; line-height: 1.6; }
.nrve-preset-notes:empty { display: none; }
.nrve-calc-warning { margin: 18px 0 0; padding: 14px 16px; border: 1px solid var(--nrve-black, #111); font-size: 12px; line-height: 1.5; }
.woocommerce div.product .woocommerce-tabs .panel .nrve-research-wrap { max-width: none; }
@media (max-width: 700px) {
    .nrve-coa-section, .nrve-calculator { margin: 24px 0; padding: 20px; }
    .nrve-calc-grid, .nrve-protocol-conditions, .nrve-calc-results { grid-template-columns: 1fr; }
    .nrve-span-2 { grid-column: auto; }
}