/* ── TRUST BAR ── */
  .trust-bar {
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 28px 48px;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0;
  }
  .trust-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 0 24px;
    border-right: 1px solid var(--border);
  }
  .trust-item:first-child { padding-left: 0; }
  .trust-item:last-child { border-right: none; }
  .trust-icon-svg {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
  }
  .trust-icon-svg svg {
    width: 24px;
    height: 24px;
    stroke: var(--pink-text);
  }
  .trust-label {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: .15em;
    text-transform: uppercase;
    color: var(--gray);
    line-height: 1.5;
  }
  .trust-label strong {
    display: block;
    color: var(--white);
    font-weight: 500;
    margin-bottom: 2px;
  }

  /* ── COMPARISON SECTION ── */
  .comparison-section {
    padding: 100px 48px;
    max-width: 1200px;
    margin: 0 auto;
  }
  .comparison-intro {
    max-width: 680px;
    font-size: 18px;
    line-height: 1.75;
    color: var(--gray-light);
    font-weight: 300;
    margin-bottom: 48px;
  }
  .comparison-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
  }
  .comparison-card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 36px 28px;
    position: relative;
    transition: border-color var(--transition);
  }
  .comparison-card:hover { border-color: rgba(255,255,255,0.15); }
  .comparison-card-highlight {
    border-color: var(--pink);
    background: rgba(219,38,108,0.04);
  }
  .comparison-card-highlight:hover { border-color: var(--pink); }
  .comparison-card-badge {
    position: absolute;
    top: -1px;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    background: var(--pink-hover);
    color: #fff;
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: .15em;
    text-transform: uppercase;
    padding: 4px 14px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
  }
  .comparison-card-header {
    font-family: var(--serif);
    font-size: 24px;
    font-weight: 300;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
  }
  .comparison-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
  }
  .comparison-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13px;
    line-height: 1.5;
    color: var(--gray-light);
    font-weight: 300;
  }
  .comparison-list li svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    margin-top: 1px;
  }
  .comparison-neg svg { stroke: var(--gray); }
  .comparison-neutral svg { stroke: var(--gray); }
  .comparison-pos svg { stroke: var(--pink); }
  .comparison-pos { color: var(--white); }

  /* ── HOW IT WORKS SECTION ── */
  .how-section {
    padding: 100px 48px;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: var(--deep);
  }
  .how-inner {
    max-width: 1100px;
    margin: 0 auto;
  }
  .how-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .how-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px 32px;
    position: relative;
    transition: border-color var(--transition), transform var(--transition);
  }
  .how-card:hover {
    border-color: rgba(219,38,108,0.3);
    transform: translateY(-4px);
  }
  .how-step {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: .2em;
    color: var(--pink-text);
    margin-bottom: 20px;
  }
  .how-icon {
    margin-bottom: 20px;
  }
  .how-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--pink-text);
  }
  .how-title {
    font-family: var(--serif);
    font-size: 26px;
    font-weight: 300;
    margin-bottom: 12px;
  }
  .how-desc {
    font-size: 17px;
    line-height: 1.7;
    color: var(--gray);
    font-weight: 300;
  }

  /* ── MINI SOCIAL PROOF STRIP ── */
  .mini-proof {
    padding: 40px 48px;
    border-bottom: 1px solid var(--border);
  }
  .mini-proof-inner {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  .mini-proof-card {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: var(--gray-light);
    font-weight: 300;
    padding: 16px 20px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
  }
  .mini-proof-stars {
    color: var(--pink);
    font-size: 12px;
    letter-spacing: 1px;
    flex-shrink: 0;
  }
  .mini-proof-quote {
    font-family: var(--serif);
    font-size: 17px;
    font-style: italic;
    color: var(--white);
    flex: 1;
  }
  .mini-proof-name {
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--gray2);
    flex-shrink: 0;
  }

  /* ── SCIENCE SECTION ── */
  .science {
    padding: 120px 48px;
    max-width: 1200px;
    margin: 0 auto;
  }
  .science-intro {
    max-width: 680px;
    margin: 0 auto 60px;
    text-align: center;
    font-size: 18px;
    line-height: 1.75;
    color: var(--gray-light);
    font-weight: 300;
  }
  .section-tag {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: .25em;
    text-transform: uppercase;
    color: var(--pink-text);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .section-tag::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
    max-width: 200px;
  }
  .section-title {
    font-family: var(--serif);
    font-size: clamp(36px, 4vw, 58px);
    font-weight: 300;
    line-height: 1.1;
    letter-spacing: -.02em;
    margin-bottom: 60px;
    max-width: 700px;
  }
  .section-title em { font-style: italic; color: var(--pink); }

  .receptor-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    margin-bottom: 80px;
  }
  .receptor-card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 40px 32px;
    position: relative;
    overflow: hidden;
    transition: border-color var(--transition);
  }
  .receptor-card:hover { border-color: var(--pink); }
  .receptor-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: transparent;
    transition: background var(--transition);
  }
  .receptor-card:hover::before { background: var(--pink); }
  .receptor-num {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: .2em;
    color: var(--pink-text);
    margin-bottom: 20px;
  }
  .receptor-name {
    font-family: var(--serif);
    font-size: 26px;
    font-weight: 300;
    margin-bottom: 8px;
  }
  .receptor-abbr {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--pink-text);
    margin-bottom: 20px;
    letter-spacing: .1em;
  }
  .receptor-desc {
    font-size: 17px;
    line-height: 1.7;
    color: var(--gray);
    font-weight: 300;
  }

  /* DATA STATS */
  .data-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
  }
  .data-card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 48px 40px;
    text-align: center;
  }
  .data-num {
    font-family: var(--serif);
    font-size: clamp(48px, 5vw, 72px);
    font-weight: 300;
    color: var(--pink);
    line-height: 1;
    margin-bottom: 8px;
  }
  .data-label {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--gray);
    line-height: 1.6;
  }

  /* ── PRODUCT DETAIL ── */
  .product-detail {
    padding: 120px 48px;
    background: var(--deep);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }
  .detail-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    align-items: center;
  }
  .detail-specs-list {
    list-style: none;
    margin-bottom: 32px;
  }
  .detail-specs-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
    font-size: 17px;
  }
  .detail-specs-list li:last-child { border-bottom: none; }
  .spec-key {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: .15em;
    text-transform: uppercase;
    color: var(--gray);
  }
  .spec-val {
    font-family: var(--mono);
    font-size: 13px;
    color: var(--white);
    text-align: right;
  }
  .spec-val.highlight { color: var(--pink-text); }

  /* Collapsible box contents */
  .contents-details {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
  }
  .contents-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
    cursor: pointer;
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--pink-text);
    list-style: none;
  }
  .contents-summary::-webkit-details-marker { display: none; }
  .contents-summary .chevron {
    width: 14px;
    height: 14px;
    stroke: var(--gray);
    transition: transform var(--transition-fast);
  }
  .contents-details[open] .contents-summary .chevron { transform: rotate(180deg); }
  .contents-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 0 24px 20px;
  }
  .contents-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 17px;
    color: var(--gray-light);
    font-weight: 300;
  }
  .contents-list li::before {
    content: '\2192';
    color: var(--pink);
    font-family: var(--mono);
    font-size: 12px;
    flex-shrink: 0;
  }

  .detail-right .section-title { margin-bottom: 32px; }
  .detail-right p {
    font-size: 18px;
    line-height: 1.8;
    color: var(--gray);
    margin-bottom: 24px;
    font-weight: 300;
  }

  /* dosing visual */
  .dosing-visual {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 28px;
    margin-top: 40px;
  }
  .dosing-title {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--pink-text);
    margin-bottom: 20px;
  }
  .dosing-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
  }
  .dosing-row:last-child { border-bottom: none; }
  .dosing-key { font-family: var(--mono); font-size: 10px; color: var(--gray); letter-spacing: .1em; text-transform: uppercase; }
  .dosing-val { font-family: var(--mono); font-size: 13px; color: var(--white); }
  .dosing-val .pink { color: var(--pink-text); }

  /* ── PRICING SECTION ── */
  .pricing-section {
    padding: 100px 48px;
    border-top: 1px solid var(--border);
  }
  .pricing-inner {
    max-width: 960px;
    margin: 0 auto;
    text-align: center;
  }
  .pricing-inner .section-tag { justify-content: center; }
  .pricing-inner .section-tag::after { display: none; }
  .pricing-inner .section-tag::before { content: ''; display: block; width: 32px; height: 1px; background: var(--pink); }
  .pricing-inner .section-title { max-width: 100%; text-align: center; margin: 0 auto 48px; }
  .pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    margin-bottom: 32px;
    text-align: center;
  }
  .pricing-card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 40px 28px 36px;
    position: relative;
    transition: border-color var(--transition), transform var(--transition);
  }
  .pricing-card:hover {
    border-color: rgba(255,255,255,0.15);
    transform: translateY(-4px);
  }
  .pricing-card-best {
    border-color: var(--pink);
    background: rgba(219,38,108,0.04);
  }
  .pricing-card-best:hover {
    border-color: var(--pink);
    box-shadow: 0 8px 32px rgba(219,38,108,0.15);
  }
  .pricing-card-badge {
    position: absolute;
    top: -1px;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    background: var(--pink-hover);
    color: #fff;
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: .15em;
    text-transform: uppercase;
    padding: 4px 14px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
  }
  .pricing-card-qty {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: .15em;
    text-transform: uppercase;
    color: var(--pink-text);
    margin-bottom: 16px;
  }
  .pricing-card-price {
    font-family: var(--serif);
    font-size: 40px;
    font-weight: 300;
    margin-bottom: 4px;
  }
  .pricing-card-per {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--gray);
    margin-bottom: 8px;
  }
  .pricing-card-save {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--pink-text);
    letter-spacing: .1em;
    margin-bottom: 20px;
  }
  .pricing-card-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: transparent;
    color: var(--white);
    border: 1px solid var(--border2);
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: .12em;
    text-transform: uppercase;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
    margin-top: 8px;
  }
  .pricing-card-btn:hover {
    border-color: var(--pink);
    color: var(--pink);
    background: var(--pink-glow);
  }
  .pricing-card-best .pricing-card-btn {
    background: var(--pink, #db266c);
    border-color: var(--pink, #db266c);
    color: #fff;
  }
  .pricing-card-best .pricing-card-btn:hover {
    background: var(--pink-hover, #a81d55);
  }
  .pricing-card-btn:visited { color: var(--white); }
  .pricing-card-best .pricing-card-btn:visited { color: #fff; }
  .pricing-footer {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: .08em;
    color: var(--gray);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
  }
  .pricing-divider { color: var(--border2); }

  /* ── FINAL CTA ── */
  .final-cta {
    padding: 80px 48px;
    text-align: center;
    border-top: 1px solid var(--border);
    background: var(--deep);
  }
  .final-cta-inner {
    max-width: 700px;
    margin: 0 auto;
  }
  .final-cta-title {
    font-family: var(--serif);
    font-size: clamp(32px, 3.5vw, 50px);
    font-weight: 300;
    margin-bottom: 32px;
  }
  .final-cta-signals {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-top: 32px;
    flex-wrap: wrap;
  }
  .final-cta-signals span {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--gray);
  }
  .final-cta-signals svg {
    width: 16px;
    height: 16px;
    stroke: var(--pink-text);
  }

  /* ── BULK STRIP ── */
  .bulk-strip {
    padding: 32px 48px;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }
  .bulk-strip-inner {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
  }
  .bulk-strip-text {
    font-size: 17px;
    color: var(--gray-light);
    font-weight: 300;
  }
  .bulk-strip-text strong {
    color: var(--white);
    font-weight: 500;
  }
  .bulk-strip-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
  }
  .btn-telegram {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #0D6EAD;
    color: #fff;
    border: none;
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: .12em;
    text-transform: uppercase;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast), transform var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
  }
  .btn-telegram:hover {
    background: #0A5B8F;
    transform: translateY(-1px);
  }
  .bulk-strip-link {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--gray);
    text-decoration: none;
    transition: color var(--transition-fast);
    white-space: nowrap;
  }
  .bulk-strip-link:visited { color: var(--gray); }
  .bulk-strip-link:hover { color: var(--pink); }

  /* ── COA SECTION ── */
  .coa-section {
    padding: 120px 48px;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
  }
  .coa-section .section-tag { justify-content: center; }
  .coa-section .section-tag::after { display: none; }
  .coa-section .section-tag::before { content: ''; display: block; width: 32px; height: 1px; background: var(--pink); }
  .coa-section .section-title { max-width: 100%; text-align: center; margin: 0 auto 16px; }
  .coa-desc {
    font-size: 17px;
    color: var(--gray);
    margin-bottom: 48px;
    font-weight: 300;
    line-height: 1.7;
  }
  .coa-image-wrap {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    display: inline-block;
    position: relative;
    overflow: hidden;
    cursor: zoom-in;
  }
  .coa-image-wrap::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--pink), transparent);
  }
  .coa-image-wrap img {
    max-width: 100%;
    width: 520px;
    height: auto;
    border-radius: var(--radius-sm);
    display: block;
  }
  .coa-meta {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-top: 32px;
    flex-wrap: wrap;
  }
  .coa-meta-item {
    text-align: center;
  }
  .coa-meta-label {
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: .15em;
    text-transform: uppercase;
    color: var(--gray2);
    margin-bottom: 4px;
  }
  .coa-meta-value {
    font-family: var(--mono);
    font-size: 13px;
    color: var(--white);
    font-weight: 500;
  }
  .coa-meta-value.pink { color: var(--pink-text); }

  /* ── SOCIAL PROOF SECTION ── */
  .proof-section {
    padding: 120px 48px;
    max-width: 1100px;
    margin: 0 auto;
    text-align: center;
  }
  .proof-section .section-tag { justify-content: center; }
  .proof-section .section-tag::after { display: none; }
  .proof-section .section-tag::before { content: ''; display: block; width: 32px; height: 1px; background: var(--pink); }
  .proof-section .section-title { max-width: 100%; text-align: center; margin: 0 auto 16px; }
  .proof-subtitle {
    font-size: 17px;
    color: var(--gray);
    margin-bottom: 56px;
    font-weight: 300;
    line-height: 1.7;
  }
  .proof-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    text-align: left;
  }
  .proof-card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 28px 24px 24px;
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: border-color var(--transition);
  }
  .proof-card:hover {
    border-color: var(--pink);
  }
  .proof-stars {
    font-size: 14px;
    color: var(--pink);
    letter-spacing: 2px;
  }
  .proof-quote {
    font-family: var(--serif);
    font-size: 17px;
    font-weight: 300;
    color: var(--white);
    line-height: 1.5;
    flex: 1;
  }
  .proof-attribution {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--gray2);
    padding-top: 16px;
    border-top: 1px solid var(--border);
  }

  /* ── FOOTER ── */
  footer {
    border-top: 1px solid var(--border);
    padding: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
  }
  .footer-logo {
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--gray);
  }
  .footer-logo a { color: inherit; text-decoration: none; }
  .footer-logo span { color: var(--pink); }
  .footer-links {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
  }
  .footer-links a {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: .15em;
    text-transform: uppercase;
    color: var(--gray2);
    text-decoration: none;
    transition: color var(--transition-fast);
  }
  .footer-links a:visited { color: var(--gray2); }
  .footer-links a:hover { color: var(--pink); }
  .footer-social { display: flex; gap: 16px; align-items: center; }
  .footer-social a { color: var(--gray2); transition: color var(--transition-fast); display: flex; align-items: center; }
  .footer-social a:hover { color: var(--pink); }
  .footer-brand {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--gray2);
    letter-spacing: .05em;
    margin-bottom: 6px;
  }
  .footer-formerly {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--gray2);
    letter-spacing: .05em;
    margin-bottom: 6px;
  }
  .footer-ruo {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--gray2);
    letter-spacing: .1em;
  }

  /* ── GUIDES SECTION ── */
  .research-section {
    padding: 80px 48px;
    border-top: 1px solid var(--border);
  }
  .research-inner {
    max-width: 960px;
    margin: 0 auto;
  }
  .research-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 40px;
  }
  .research-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 28px 28px 24px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: inherit;
    transition: border-color var(--transition), background var(--transition);
    min-height: 180px;
  }
  .research-card:visited { color: inherit; }
  .research-card:hover {
    border-color: var(--pink);
    background: var(--deep);
  }
  .research-card-label {
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--pink-text);
    margin-bottom: 10px;
  }
  .research-card-title {
    font-family: var(--serif);
    font-size: 21px;
    font-weight: 300;
    color: var(--white);
    margin-bottom: 8px;
    line-height: 1.25;
  }
  .research-card-desc {
    font-size: 13px;
    color: var(--gray);
    font-weight: 300;
    line-height: 1.6;
    flex: 1;
  }
  .research-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
  }
  .research-card-type {
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--gray2);
  }
  .research-card-arrow {
    color: var(--pink);
    font-size: 14px;
    opacity: 0;
    transition: opacity var(--transition), transform var(--transition);
    transform: translateX(-4px);
  }
  .research-card:hover .research-card-arrow {
    opacity: 1;
    transform: translateX(0);
  }
  .research-view-all {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 36px;
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--pink-text);
    text-decoration: none;
    transition: gap var(--transition);
  }
  .research-view-all:visited { color: var(--pink-text); }
  .research-view-all:hover { gap: 14px; }
  .research-count {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--gray2);
    margin-top: 8px;
  }

  /* ── WHATSAPP FLOATING BUTTON ── */
  .whatsapp-float {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 56px;
    height: 56px;
    background: #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(37,211,102,0.4);
    z-index: 95;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    text-decoration: none;
  }
  .whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 28px rgba(37,211,102,0.5);
  }
  .whatsapp-float svg {
    width: 28px;
    height: 28px;
    fill: #fff;
  }
  @media (max-width: 480px) {
    .whatsapp-float {
      bottom: 18px;
      right: 18px;
      width: 48px;
      height: 48px;
    }
    .whatsapp-float svg { width: 24px; height: 24px; }
  }

  /* ── Sticky Order Bar ── */
  .sticky-order-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 101;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    background: rgba(12,12,12,0.98);
    border-bottom: 1px solid var(--border);
    padding: 10px 24px;
    font-size: 13px;
    color: var(--gray-light);
    transform: translateY(-100%);
    opacity: 0;
    transition: transform var(--transition), opacity var(--transition);
    pointer-events: none;
  }
  .sticky-order-bar.visible {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .sticky-order-bar span {
    font-family: 'DM Mono', monospace;
    font-size: 12px;
    letter-spacing: 0.03em;
  }
  .sticky-order-bar a {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: var(--pink);
    color: #fff;
    padding: 6px 16px;
    border-radius: var(--radius);
    font-size: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: background var(--transition-fast);
  }
  .sticky-order-bar a:hover { background: #e6196a; }
  @media (max-width: 768px) {
    .sticky-order-bar { gap: 10px; padding: 8px 16px; }
    .sticky-order-bar span { font-size: 11px; }
    .sticky-order-bar a { padding: 10px 16px; min-height: 44px; display: inline-flex; align-items: center; }
    .hide-mobile { display: none; }
  }

  /* ── Home FAQ ── */
  .home-faq {
    max-width: 800px;
    margin: 0 auto;
    padding: 80px 48px;
  }
  .home-faq .section-tag,
  .home-faq .section-title { text-align: center; }
  .home-faq-grid {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 1px;
    background: var(--border);
    border-radius: var(--radius);
    overflow: hidden;
  }
  .home-faq-item {
    background: var(--surface);
  }
  .home-faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
    cursor: pointer;
    font-size: 17px;
    font-weight: 500;
    color: var(--white);
    list-style: none;
    transition: background var(--transition-fast);
  }
  .home-faq-item summary::-webkit-details-marker { display: none; }
  .home-faq-item summary:hover { background: rgba(255,255,255,0.02); }
  .home-faq-item summary .chevron {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    stroke: var(--gray);
    transition: transform var(--transition-fast);
  }
  .home-faq-item[open] summary .chevron { transform: rotate(180deg); }
  .home-faq-answer {
    padding: 0 24px 18px;
    font-size: 13px;
    line-height: 1.7;
    color: var(--gray-light);
  }
  .home-faq-answer a { color: var(--pink-text); text-decoration: underline; text-underline-offset: 2px; }
  .home-faq-link {
    display: block;
    text-align: center;
    margin-top: 24px;
    font-size: 13px;
    color: var(--pink-text);
    text-decoration: none;
    font-weight: 500;
  }
  .home-faq-link:visited { color: var(--pink-text); }
  .home-faq-link:hover { text-decoration: underline; }
  @media (max-width: 768px) {
    .home-faq { padding: 60px 24px; }
  }

  /* ── Profile widget menu hover ── */
  .pw-menu-link:hover { background: rgba(219,38,108,0.08) !important; color: var(--pink) !important; }

  /* ── COA MODAL ── */
  .coa-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.85);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: zoom-out;
    padding: 24px;
  }
  .coa-modal-overlay.open { display: flex; }
  .coa-modal-overlay img {
    max-width: 90vw;
    max-height: 90vh;
    border-radius: var(--radius);
    box-shadow: 0 0 60px rgba(219,38,108,0.2);
    cursor: default;
  }
  .coa-modal-close {
    position: fixed;
    top: 24px;
    right: 24px;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 2001;
    transition: background var(--transition-fast);
  }
  .coa-modal-close:hover { background: rgba(255,255,255,0.2); }
  .coa-modal-close svg { width: 18px; height: 18px; stroke: #fff; fill: none; stroke-width: 2; }

  /* ── TOAST ── */
  .toast {
    position: fixed;
    bottom: 32px;
    right: 32px;
    background: var(--surface);
    border: 1px solid var(--pink);
    border-radius: var(--radius-sm);
    padding: 16px 24px;
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: .1em;
    color: var(--white);
    z-index: 1001;
    transform: translateY(100px);
    opacity: 0;
    transition: transform .3s cubic-bezier(0.34, 1.56, 0.64, 1), opacity .3s cubic-bezier(0.34, 1.56, 0.64, 1);
    max-width: 320px;
  }
  .toast.show { transform: translateY(0); opacity: 1; }

  /* ── ANIMATIONS ── */
  .fade-in {
    opacity: 0;
    transform: translateY(24px);
    animation: fadeUp .8s ease forwards;
  }
  .fade-in:nth-child(1) { animation-delay: .1s; }
  .fade-in:nth-child(2) { animation-delay: .25s; }
  .fade-in:nth-child(3) { animation-delay: .4s; }
  .fade-in:nth-child(4) { animation-delay: .55s; }
  .fade-in:nth-child(5) { animation-delay: .7s; }
  @keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
  }

  /* ── HAMBURGER ── */
  .nav-hamburger { display:none; background:none; border:1px solid var(--border2); border-radius:2px; width:40px; height:40px; cursor:pointer; align-items:center; justify-content:center; padding:0; flex-shrink:0; color:var(--white); }
  .nav-hamburger:hover { border-color:var(--pink); color:var(--pink); }
  .nav-hamburger .ham-top, .nav-hamburger .ham-mid, .nav-hamburger .ham-bot { transition:transform var(--transition),opacity var(--transition); transform-origin:center; }
  .nav-hamburger.open .ham-top { transform:translate(0,6px) rotate(45deg); }
  .nav-hamburger.open .ham-mid { opacity:0; }
  .nav-hamburger.open .ham-bot { transform:translate(0,-6px) rotate(-45deg); }

  /* ── RESPONSIVE ── */
  @media (max-width: 900px) {
    nav { padding: 20px 24px; flex-wrap: wrap; }
    .nav-hamburger { display:flex; order:2; margin-left:auto; }
    .nav-cart-icon { order:3; margin-left:8px; width:44px; height:44px; }
    .nav-right { display:none; flex-direction:column; width:100%; order:10; border-top:1px solid var(--border); padding-top:16px; margin-top:16px; gap:0; }
    .nav-right.open { display:flex; }
    .nav-right > a.nav-link { width:100%; text-align:center; padding:14px 20px; border:none !important; border-bottom:1px solid var(--border) !important; border-radius:0; font-size:12px; color:#fff !important; }
    .nav-right > a.nav-cta { width:100%; text-align:center; padding:14px 20px; border-radius:var(--radius-sm); font-size:12px; margin-top:8px; }
    .nav-right > a:last-of-type { border-bottom:none !important; }
    #profileWidget { width:100%; text-align:center; padding:8px 0; }
    .hero { padding: 80px 24px 60px; min-height: auto; grid-template-columns: 1fr; text-align: center; gap: 32px; }
    .hero-content { max-width: 100%; text-align: center; }
    .hero-tag { justify-content: center; }
    .hero-showcase { order: -1; }
    .hero-showcase-inner { max-width: 320px; margin: 0 auto; }
    .hero-showcase-inner::after { display: none; }
    .hero-showcase-label { display: none; }
    .hero-actions { flex-direction: column; width: 100%; justify-content: center; }
    .hero-actions .btn-primary, .hero-actions .btn-whatsapp, .hero-actions .btn-ghost { width: 100%; justify-content: center; text-align: center; }
    .hero-proof { text-align: center; }
    .trust-bar { grid-template-columns: 1fr 1fr; padding: 24px; gap: 16px; }
    .trust-item { border-right: none; padding: 0; }
    .comparison-section { padding: 60px 24px; }
    .comparison-grid { grid-template-columns: 1fr; gap: 16px; }
    .comparison-card-highlight { order: -1; }
    .how-section { padding: 60px 24px; }
    .how-grid { grid-template-columns: 1fr; gap: 16px; }
    .mini-proof { padding: 32px 24px; }
    .mini-proof-inner { grid-template-columns: 1fr; }
    .mini-proof-card { flex-wrap: wrap; }
    .science { padding: 80px 24px; }
    .receptor-grid { grid-template-columns: 1fr; }
    .data-row { grid-template-columns: 1fr; }
    .product-detail { padding: 80px 24px; }
    .detail-inner { grid-template-columns: 1fr; gap: 48px; }
    .coa-section { padding: 80px 24px; }
    .coa-image-wrap { padding: 20px; }
    .coa-image-wrap img { width: 100%; }
    .proof-section { padding: 80px 24px; }
    .proof-grid { grid-template-columns: 1fr; }
    .pricing-section { padding: 60px 24px; }
    .pricing-grid { grid-template-columns: 1fr; gap: 16px; }
    .pricing-card-best { order: -1; }
    .final-cta { padding: 60px 24px; }
    .final-cta-signals { flex-direction: column; gap: 16px; }
    .bulk-strip { padding: 24px; }
    .bulk-strip-inner { flex-direction: column; text-align: center; }
    .bulk-strip-actions { justify-content: center; }
    footer { padding: 32px 24px; flex-direction: column; align-items: flex-start; gap: 16px; }
    .footer-links { flex-wrap: wrap; gap: 16px; justify-content: flex-start; }
    .research-section { padding: 60px 24px; }
    .research-grid { grid-template-columns: 1fr; }
    .research-card { padding: 22px 20px; min-height: auto; }
    .research-card-arrow { display: none; }
  }
  /* ── HERO PARTICLE CANVAS ── */
  #heroParticles {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
  }

  /* Calculator banner */
  .calc-banner { border-bottom: 1px solid var(--border); padding: 0 48px; }
  .calc-banner-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; padding: 24px 0; gap: 24px; }
  .calc-banner-title { font-family: var(--serif); font-size: 20px; font-weight: 400; color: var(--white); }
  .calc-banner-btn { font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--white); border: 1px solid var(--border2); padding: 12px 28px; border-radius: var(--radius-sm); transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast); white-space: nowrap; flex-shrink: 0; }
  .calc-banner-btn:visited { color: var(--white); }
  .calc-banner-btn:hover { border-color: var(--pink); color: var(--pink); background: var(--pink-soft); }
  @media (max-width: 768px) {
    .calc-banner { padding: 0 24px; }
    .calc-banner-inner { flex-direction: column; align-items: flex-start; padding: 24px 0; }
    .calc-banner-btn { width: 100%; text-align: center; }
  }

  /* ── RESEARCH CATEGORIES ── */
  .research-categories {
    padding: 80px 48px;
    border-top: 1px solid var(--border);
  }
  .research-categories-inner {
    max-width: 960px;
    margin: 0 auto;
  }
  .research-categories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 40px;
  }
  .category-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 28px 24px 24px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: inherit;
    transition: border-color var(--transition), background var(--transition);
    min-height: 170px;
  }
  .category-card:visited { color: inherit; }
  .category-card:hover {
    border-color: var(--pink);
    background: var(--deep);
  }
  .category-card-icon {
    font-size: 22px;
    margin-bottom: 14px;
    line-height: 1;
  }
  .category-card-name {
    font-family: var(--serif);
    font-size: 21px;
    font-weight: 300;
    color: var(--white);
    margin-bottom: 8px;
    line-height: 1.25;
  }
  .category-card-desc {
    font-size: 13px;
    color: var(--gray);
    font-weight: 300;
    line-height: 1.6;
    flex: 1;
  }
  .category-card-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--pink-text);
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
    transition: color var(--transition-fast);
  }
  .category-card:hover .category-card-link { color: var(--white); }
  @media (max-width: 768px) {
    .research-categories { padding: 60px 24px; }
    .research-categories-grid { grid-template-columns: 1fr; }
    .category-card { min-height: auto; }
  }

  /* ── BACK TO TOP ── */
  .back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    background: var(--surface, #111);
    border: 1px solid var(--border, #222);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition), border-color var(--transition), background var(--transition);
    z-index: 900;
    text-decoration: none;
  }
  .back-to-top.visible { opacity: 1; visibility: visible; }
  .back-to-top:hover {
    border-color: var(--pink, #db266c);
    background: rgba(219,38,108,0.08);
  }
  .back-to-top svg {
    width: 18px;
    height: 18px;
    stroke: var(--gray, #888);
    transition: stroke var(--transition);
  }
  .back-to-top:hover svg { stroke: var(--pink, #db266c); }
  .whatsapp-float ~ .back-to-top { bottom: 90px; }
  @media (max-width: 768px) {
    .back-to-top { bottom: 24px; right: 24px; width: 40px; height: 40px; }
    .whatsapp-float ~ .back-to-top { bottom: 80px; }
  }

  /* content-visibility: auto removed — the 600px intrinsic-size estimate
     caused CLS 0.636 on mobile when sections rendered at actual heights.
     Net perf gain was negligible on this static page. */

  /* ── A11Y: focus-visible for interactive elements ── */
  .pricing-card-btn:focus-visible,
  .btn-telegram:focus-visible,
  .bulk-strip-link:focus-visible,
  .research-card:focus-visible,
  .coa-image-wrap:focus-visible,
  .nav-hamburger:focus-visible,
  .nav-link:focus-visible,
  .whatsapp-float:focus-visible,
  .back-to-top:focus-visible,
  .calc-banner-btn:focus-visible,
  .research-view-all:focus-visible,
  .home-faq-item summary:focus-visible,
  .footer-links a:focus-visible,
  .footer-social a:focus-visible {
    outline: 2px solid var(--pink);
    outline-offset: 2px;
  }

  /* ── PERF: prefers-reduced-motion ── */
  @media (prefers-reduced-motion: reduce) {
    .hero-showcase-inner { animation: none; }
    .ann-bar::before { animation: none; }
    #heroParticles { display: none; }
    .fade-in { opacity: 1 !important; transform: none !important; }
    .how-card:hover { transform: none; }
    .pricing-card:hover { transform: none; }
    .btn-telegram:hover { transform: none; }
  }