/* ============================================================================
   Research Peptides — PURPLE / aubergine design system
   Tokens taken from the Step 4 spec. Space Grotesk = headings/prices/wordmark,
   Inter = body/UI. Loaded via <link> in base.html.
   ========================================================================== */
:root {
  /* page + cards */
  --page: #f3f0fa;
  --card: #ffffff;
  --chip: #efeafb;
  --border: #e6e0f2;
  /* text */
  --ink: #1a0f33;
  --muted: #8b83a3;
  /* purples */
  --deep: #2d1b52;
  --deep2: #1a0f33;
  --royal: #3d2b6d;
  --royal-dark: #32245a;
  --indigo: #4a2f8f;
  --violet: #8b5cf6;
  --violet-2: #9d6bf5;
  --band: #5b3fa0;
  /* status */
  --green: #22c55e;
  --danger: #e11d48;

  --shadow-sm: 0 6px 20px rgba(74, 47, 143, 0.05);
  --shadow-md: 0 10px 30px rgba(74, 47, 143, 0.10);
  --shadow-lg: 0 18px 48px rgba(26, 15, 51, 0.22);
  --radius: 16px;
  --radius-lg: 18px;
  --maxw: 1180px;
  --head: "Archivo", "Inter", system-ui, sans-serif;
  --body: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--body);
  background: var(--page);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
body.no-scroll { overflow: hidden; }
h1, h2, h3, h4, .head { font-family: var(--head); font-weight: 800; letter-spacing: -0.015em; }
a { color: var(--indigo); text-decoration: none; }
img { max-width: 100%; display: block; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.muted { color: var(--muted); }
.center { text-align: center; }

/* ─── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--head); font-weight: 600; font-size: 15px;
  padding: 13px 26px; border-radius: 30px; border: 1px solid transparent;
  cursor: pointer; transition: background .18s, color .18s, transform .18s, box-shadow .18s;
  white-space: nowrap;
}
.btn-primary { background: var(--royal); color: #fff; }
.btn-primary:hover { background: var(--violet); color: #fff; transform: translateY(-1px); }
.btn-outline-dark { background: transparent; color: #fff; border-color: rgba(255,255,255,.4); }
.btn-outline-dark:hover { background: rgba(255,255,255,.12); }
.btn-outline { background: #fff; color: var(--indigo); border-color: var(--border); }
.btn-outline:hover { border-color: var(--violet); color: var(--violet); }
.btn-block { width: 100%; }
.btn-sm { padding: 9px 16px; font-size: 13px; }

/* ─── Announcement / coupon bar ───────────────────────────────── */
.announce {
  background: linear-gradient(90deg, var(--violet), var(--violet-2));
  color: #fff; text-align: center; padding: 9px 40px 9px 16px; font-size: 13.5px;
  font-weight: 600; position: relative;
}
.announce a { color: #fff; text-decoration: underline; }
.announce-x {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  background: none; border: none; color: #fff; font-size: 20px; cursor: pointer; line-height: 1;
}

/* ─── Coupon code box + calculator ────────────────────────────── */
.code-box {
  font-family: var(--head); font-weight: 700; font-size: 22px; letter-spacing: .12em;
  color: var(--indigo); background: var(--chip); border: 1px dashed var(--violet);
  border-radius: 10px; padding: 12px; margin: 10px auto 8px; display: inline-block;
}
.calc-out { margin-top: 8px; }
.calc-out .co-line {
  display: flex; justify-content: space-between; padding: 10px 0;
  border-bottom: 1px solid var(--border); font-size: 14px;
}
.calc-out .co-line:last-child { border-bottom: none; }
.calc-out .co-line b { font-family: var(--head); color: var(--indigo); }
.calc-out .co-hint { font-size: 12px; color: var(--muted); margin-top: 8px; }

/* ─── Coupon field (checkout) ─────────────────────────────────── */
.coupon-row { display: flex; gap: 8px; margin: 6px 0 4px; }
.coupon-row input { flex: 1; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; font-size: 14px; text-transform: uppercase; }
.coupon-msg { font-size: 12.5px; margin: 4px 0 0; }
.coupon-msg.ok { color: var(--green); }
.coupon-msg.err { color: var(--danger); }
.summary-row.discount span { color: var(--green); }

/* ─── Top strip ───────────────────────────────────────────────── */
.topstrip {
  background: var(--band); color: #fff; font-size: 12.5px; letter-spacing: .04em;
  text-align: center; padding: 8px 16px; text-transform: uppercase; font-weight: 500;
}
.topstrip span { opacity: .95; }

/* ─── Main nav ────────────────────────────────────────────────── */
.nav {
  background: #fff; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 40;
}
.nav-inner { display: flex; align-items: center; gap: 22px; height: 68px; }
.brand {
  font-family: var(--head); font-weight: 700; font-size: 21px; letter-spacing: .06em;
  color: var(--indigo); text-transform: uppercase; white-space: nowrap;
}
.nav-links { display: flex; gap: 26px; margin-left: 8px; flex: 1; }
.nav-links a { color: var(--ink); font-family: var(--head); font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; }
.nav-links a:hover { color: var(--violet); }
.nav-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.icon-btn {
  width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--border);
  background: #fff; color: var(--ink); display: inline-flex; align-items: center;
  justify-content: center; cursor: pointer; position: relative; font-size: 16px;
  transition: background .15s, border-color .15s, color .15s;
}
.icon-btn:hover { background: var(--chip); color: var(--violet); border-color: var(--violet); }
.cart-badge {
  position: absolute; top: -4px; right: -4px; background: var(--violet); color: #fff;
  font-size: 11px; font-weight: 700; min-width: 18px; height: 18px; border-radius: 9px;
  display: flex; align-items: center; justify-content: center; padding: 0 4px;
}
.nav-toggle { display: none; }

/* ─── Marquee / trust band ────────────────────────────────────── */
.marquee {
  background: var(--band); color: #fff; overflow: hidden; white-space: nowrap;
  padding: 11px 0; font-size: 13px; letter-spacing: .05em; text-transform: uppercase;
}
.marquee-track { display: inline-block; animation: marquee 26s linear infinite; }
.marquee-track span { padding: 0 10px; }
.marquee-track .sep { color: var(--violet-2); }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

.trustbar {
  background: #fff; border-bottom: 1px solid var(--border);
  display: flex; gap: 26px; justify-content: center; flex-wrap: wrap;
  padding: 12px 16px; font-size: 13.5px; color: var(--ink); font-weight: 500;
}
.trustbar .tick { color: var(--violet); font-weight: 700; margin-right: 6px; }

/* ─── Category chips ──────────────────────────────────────────── */
.chips { display: flex; gap: 10px; flex-wrap: wrap; padding: 18px 0; }
.chip {
  border: 1px solid var(--border); background: #fff; color: var(--ink);
  border-radius: 30px; padding: 8px 16px; font-size: 13.5px; font-weight: 500;
  cursor: pointer; transition: background .15s, color .15s, border-color .15s;
}
.chip:hover { border-color: var(--violet); color: var(--violet); }
.chip.active { background: var(--royal); color: #fff; border-color: var(--royal); }

/* ─── Sections / bands ────────────────────────────────────────── */
.section { padding: 56px 0; }
.section h2 { font-size: 30px; margin: 0 0 6px; text-transform: uppercase; }
.section .lead { color: var(--muted); margin: 0 0 28px; max-width: 640px; }
.band-dark {
  background: linear-gradient(165deg, var(--deep) 0%, var(--deep2) 100%);
  color: #fff; position: relative; overflow: hidden;
}
.band-dark::after {
  content: ""; position: absolute; top: -120px; right: -80px; width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(139,92,246,.25), transparent 68%);
  pointer-events: none;
}
.band-dark h1, .band-dark h2, .band-dark h3 { color: #fff; }
.pill {
  display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.10);
  border: 1px solid rgba(255,255,255,.2); color: #fff; border-radius: 30px;
  padding: 7px 15px; font-size: 12.5px; letter-spacing: .05em; text-transform: uppercase;
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); display: inline-block; }

/* ─── Product grid + cards ────────────────────────────────────── */
.grid {
  display: grid; gap: 22px;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}
.pcard {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; display: flex; flex-direction: column; position: relative;
  box-shadow: var(--shadow-sm); transition: transform .18s, box-shadow .18s;
}
.pcard:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.pcard-img {
  position: relative; aspect-ratio: 1 / 1;
  background: linear-gradient(160deg, #efeafb, #f7f4fd);
  display: flex; align-items: center; justify-content: center;
}
.pcard-img img { width: 72%; height: 72%; object-fit: contain; mix-blend-mode: multiply; }
.purity-badge {
  position: absolute; top: 12px; right: 12px; width: 54px; height: 54px; border-radius: 50%;
  background: var(--violet); color: #fff; display: flex; flex-direction: column;
  align-items: center; justify-content: center; font-family: var(--head); font-weight: 700;
  line-height: 1; box-shadow: 0 4px 12px rgba(139,92,246,.4);
}
.purity-badge .n { font-size: 16px; }
.purity-badge .l { font-size: 9px; letter-spacing: .08em; margin-top: 2px; }
.oos-overlay {
  position: absolute; inset: 0; background: rgba(26,15,51,.55); color: #fff;
  display: flex; align-items: center; justify-content: center; font-family: var(--head);
  font-weight: 700; letter-spacing: .08em; text-transform: uppercase; font-size: 15px;
}
.pcard-body { padding: 16px 18px 18px; display: flex; flex-direction: column; flex: 1; }
.pcard-class { color: var(--violet); font-size: 11.5px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.pcard-name { font-family: var(--head); font-weight: 700; font-size: 18px; margin: 5px 0 10px; color: var(--ink); }
.variant-pills { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.vpill {
  border: 1px solid var(--border); background: var(--chip); color: var(--indigo);
  border-radius: 30px; padding: 5px 11px; font-size: 12px; font-weight: 600; cursor: pointer;
  transition: background .15s, color .15s;
}
.vpill:hover { background: var(--violet); color: #fff; }
.vpill.active { background: var(--violet); color: #fff; border-color: var(--violet); }
.ruo-line { display: flex; align-items: center; gap: 7px; font-size: 12px; color: var(--muted); margin: 4px 0 12px; }
.divider { height: 1px; background: var(--border); margin: 4px 0 12px; }
.price-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 10px; margin-top: auto; }
.price .from { display: block; font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.price .amt { font-family: var(--head); font-weight: 700; font-size: 22px; color: var(--indigo); }
.price .strike { font-size: 13px; color: var(--muted); text-decoration: line-through; margin-left: 6px; }
.pcard-actions { display: flex; gap: 8px; align-items: center; }
.coa-eye {
  width: 40px; height: 40px; min-width: 40px; border-radius: 50%; border: 1px solid var(--border);
  background: #fff; color: var(--indigo); display: inline-flex; align-items: center;
  justify-content: center; cursor: pointer; font-size: 16px; transition: background .15s, color .15s, border-color .15s;
}
.coa-eye:hover { background: var(--chip); color: var(--violet); border-color: var(--violet); }
.coa-status { font-size: 11.5px; font-weight: 600; }
.coa-ok { color: var(--green); }
.coa-pending { color: var(--muted); }

/* ─── Category tiles ──────────────────────────────────────────── */
.cat-grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.cat-tile {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; display: flex; align-items: center; gap: 14px; box-shadow: var(--shadow-sm);
  transition: transform .16s, box-shadow .16s;
}
.cat-tile:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.cat-icon {
  width: 46px; height: 46px; border-radius: 12px; background: var(--chip);
  display: flex; align-items: center; justify-content: center; font-size: 22px;
}
.cat-tile .cat-name { font-family: var(--head); font-weight: 600; color: var(--ink); }
.cat-tile .cat-count { font-size: 12.5px; color: var(--muted); }

/* ─── Feature / trust cards ───────────────────────────────────── */
.feature-grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
.feature {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; text-align: center; box-shadow: var(--shadow-sm);
}
.feature .ficon { font-size: 26px; }
.feature h3 { font-size: 16px; margin: 10px 0 6px; }
.feature p { font-size: 13.5px; color: var(--muted); margin: 0; }

/* ─── Stat row ────────────────────────────────────────────────── */
.stat-row { display: flex; flex-wrap: wrap; gap: 34px; border-top: 1px solid rgba(255,255,255,.16); padding-top: 26px; margin-top: 30px; }
.stat .num { font-family: var(--head); font-weight: 700; font-size: 30px; color: #fff; }
.stat .lbl { font-size: 12.5px; color: #c9b8ef; letter-spacing: .03em; }

/* ─── Steps ───────────────────────────────────────────────────── */
.steps { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.step { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.step-num {
  width: 40px; height: 40px; border-radius: 50%; background: var(--violet); color: #fff;
  font-family: var(--head); font-weight: 700; display: flex; align-items: center;
  justify-content: center; margin-bottom: 12px;
}
.step h3 { font-size: 16px; margin: 0 0 6px; }
.step p { font-size: 13.5px; color: var(--muted); margin: 0; }

/* ─── FAQ accordion ───────────────────────────────────────────── */
.faq { max-width: 780px; margin: 0 auto; }
.faq-item { background: var(--card); border: 1px solid var(--border); border-radius: 12px; margin-bottom: 12px; overflow: hidden; }
.faq-q { padding: 16px 20px; font-family: var(--head); font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.faq-q .plus { color: var(--violet); font-size: 20px; transition: transform .2s; }
.faq-item.open .faq-q .plus { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .25s ease; padding: 0 20px; color: var(--muted); font-size: 14px; }
.faq-item.open .faq-a { max-height: 320px; padding: 0 20px 18px; }

/* ─── CTA band ────────────────────────────────────────────────── */
.cta-band {
  background: linear-gradient(120deg, var(--royal), var(--violet));
  color: #fff; border-radius: var(--radius-lg); padding: 40px; text-align: center;
}
.cta-band h2 { color: #fff; margin: 0 0 8px; }
.cta-band p { color: rgba(255,255,255,.85); margin: 0 0 20px; }

/* ─── Footer ──────────────────────────────────────────────────── */
.footer { background: var(--deep2); color: #cbb8e8; padding: 48px 0 28px; font-size: 14px; }
.footer-grid { display: grid; gap: 30px; grid-template-columns: 1.4fr 1fr 1fr; margin-bottom: 30px; }
.footer h4 { color: #fff; font-size: 14px; text-transform: uppercase; letter-spacing: .05em; margin: 0 0 14px; }
.footer a { color: #cbb8e8; display: block; margin-bottom: 8px; font-size: 13.5px; }
.footer a:hover { color: #fff; }
.footer .brand { color: #fff; font-size: 20px; }
.footer .disclaimer {
  border-top: 1px solid rgba(255,255,255,.12); padding-top: 20px; color: #9a8bc0;
  font-size: 12.5px; line-height: 1.7;
}

/* ─── Cart drawer ─────────────────────────────────────────────── */
.overlay {
  position: fixed; inset: 0; background: rgba(26,15,51,.5); z-index: 60;
  opacity: 0; visibility: hidden; transition: opacity .2s;
}
.overlay.show { opacity: 1; visibility: visible; }
.drawer {
  position: fixed; top: 0; right: 0; height: 100%; width: 400px; max-width: 92vw;
  background: #fff; z-index: 70; transform: translateX(100%); transition: transform .25s;
  display: flex; flex-direction: column; box-shadow: var(--shadow-lg);
}
.drawer.show { transform: translateX(0); }
.drawer-head { display: flex; justify-content: space-between; align-items: center; padding: 20px; border-bottom: 1px solid var(--border); }
.drawer-head h3 { margin: 0; font-size: 18px; }
.drawer-body { flex: 1; overflow-y: auto; padding: 12px 20px; }
.drawer-foot { border-top: 1px solid var(--border); padding: 18px 20px; }
.close-x { background: none; border: none; font-size: 24px; cursor: pointer; color: var(--muted); line-height: 1; }
.cart-item { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--border); }
.cart-item .ci-img { width: 54px; height: 54px; border-radius: 10px; background: var(--chip); flex: none; object-fit: contain; padding: 6px; }
.cart-item .ci-name { font-weight: 600; font-size: 14px; }
.cart-item .ci-meta { font-size: 12px; color: var(--muted); }
.qty { display: inline-flex; align-items: center; border: 1px solid var(--border); border-radius: 20px; overflow: hidden; }
.qty button { border: none; background: #fff; width: 26px; height: 26px; cursor: pointer; color: var(--indigo); font-size: 15px; }
.qty span { min-width: 26px; text-align: center; font-size: 13px; }
.ci-remove { background: none; border: none; color: var(--danger); cursor: pointer; font-size: 12px; }
.cart-empty { text-align: center; color: var(--muted); padding: 40px 0; }
.summary-row { display: flex; justify-content: space-between; margin-bottom: 8px; font-size: 14px; }
.summary-row.total { font-family: var(--head); font-weight: 700; font-size: 18px; color: var(--indigo); }

/* ─── Modals ──────────────────────────────────────────────────── */
.modal {
  position: fixed; inset: 0; z-index: 80; display: none; align-items: center;
  justify-content: center; padding: 20px; background: rgba(26,15,51,.55);
}
.modal.show { display: flex; }
.modal-card {
  background: #fff; border-radius: var(--radius-lg); width: 100%; max-width: 480px;
  max-height: 90vh; overflow-y: auto; box-shadow: var(--shadow-lg);
}
.modal-card.wide { max-width: 760px; }
.modal-head { display: flex; justify-content: space-between; align-items: center; padding: 20px 22px; border-bottom: 1px solid var(--border); }
.modal-head h3 { margin: 0; font-size: 19px; }
.modal-body { padding: 22px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 5px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 11px 13px; border: 1px solid var(--border); border-radius: 10px;
  font-family: var(--body); font-size: 14px; background: #fff; color: var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--violet); border-color: var(--violet); }
.field textarea { min-height: 90px; resize: vertical; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.coa-viewer img, .coa-viewer iframe { width: 100%; border-radius: 10px; border: 1px solid var(--border); }
.coa-viewer iframe { height: 560px; }

/* ─── Age gate ────────────────────────────────────────────────── */
.agegate {
  position: fixed; inset: 0; z-index: 200; background: linear-gradient(165deg, var(--deep), var(--deep2));
  display: flex; align-items: center; justify-content: center; padding: 24px;
}
.agegate-card {
  background: #fff; border-radius: var(--radius-lg); max-width: 460px; width: 100%;
  padding: 34px 30px; text-align: center; box-shadow: var(--shadow-lg);
}
.agegate-card .brand { color: var(--indigo); font-size: 20px; margin-bottom: 14px; }
.agegate-card h2 { font-size: 22px; margin: 0 0 12px; text-transform: uppercase; }
.agegate-card p { color: var(--muted); font-size: 14.5px; margin: 0 0 22px; }
.agegate-actions { display: flex; gap: 12px; }
.agegate-actions .btn { flex: 1; }

/* ─── Toast ───────────────────────────────────────────────────── */
.toast {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%) translateY(24px);
  background: var(--deep2); color: #fff; padding: 13px 22px; border-radius: 30px;
  font-size: 14px; z-index: 300; opacity: 0; transition: opacity .2s, transform .2s;
  box-shadow: var(--shadow-lg); pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ─── Floating discount pill ──────────────────────────────────── */
.float-discount {
  position: fixed; bottom: 22px; left: 22px; right: auto; z-index: 50; background: var(--royal);
  color: #fff; border: none; border-radius: 30px; padding: 13px 20px; font-family: var(--head);
  font-weight: 600; font-size: 14px; cursor: pointer; box-shadow: 0 10px 26px rgba(61,43,109,.45);
  display: inline-flex; align-items: center; gap: 8px; transition: background .18s, transform .18s;
}
.float-discount:hover { background: var(--violet); transform: translateY(-2px); }

/* ─── Hero ────────────────────────────────────────────────────── */
.hero { padding: 72px 0 60px; }
.hero .pill { margin-bottom: 20px; }
.hero h1 { font-size: 52px; line-height: 1.02; text-transform: uppercase; margin: 0 0 18px; }
.hero .sub { color: #d6c9f2; font-size: 17px; max-width: 560px; margin: 0 0 28px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

/* ─── Product detail ──────────────────────────────────────────── */
.pd-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.pd-media { position: sticky; top: 92px; align-self: start; }
.pd-imgwrap { position: relative; background: linear-gradient(160deg, #efeafb, #f7f4fd); border-radius: var(--radius-lg); border: 1px solid var(--border); aspect-ratio: 1/1; display: flex; align-items: center; justify-content: center; }
.pd-imgwrap img { width: 70%; height: 70%; object-fit: contain; mix-blend-mode: multiply; }
.pd-class { color: var(--violet); font-size: 12.5px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.pd-title { font-size: 34px; text-transform: uppercase; margin: 6px 0 14px; }
.spec-table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 14px; }
.spec-table td { padding: 9px 0; border-bottom: 1px solid var(--border); }
.spec-table td:first-child { color: var(--muted); width: 42%; }
.ruo-banner {
  background: var(--chip); border: 1px solid var(--border); border-left: 4px solid var(--violet);
  border-radius: 10px; padding: 12px 16px; font-size: 13px; color: var(--ink); margin: 18px 0;
}
.notes-list { padding-left: 18px; color: #40325c; }
.notes-list li { margin-bottom: 8px; }
.coa-section { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; margin-top: 30px; }

/* ─── Checkout ────────────────────────────────────────────────── */
.co-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px; align-items: start; }
.co-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 26px; box-shadow: var(--shadow-sm); }
.co-summary { position: sticky; top: 92px; }
.checkbox-line { display: flex; gap: 10px; align-items: flex-start; font-size: 13.5px; background: var(--chip); padding: 14px; border-radius: 10px; }
.checkbox-line input { margin-top: 3px; }
.notice { background: #fff7ed; border: 1px solid #fed7aa; color: #92400e; border-radius: 10px; padding: 14px; font-size: 13.5px; margin: 16px 0; }

/* ─── Filters ─────────────────────────────────────────────────── */
.filters { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 24px; }
.filters input, .filters select { padding: 11px 14px; border: 1px solid var(--border); border-radius: 10px; font-size: 14px; background: #fff; }
.filters input { flex: 1; min-width: 220px; }
.hidden { display: none !important; }

/* ─── Responsive ──────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .hero h1 { font-size: 38px; }
  .pd-grid, .co-grid { grid-template-columns: 1fr; }
  .pd-media, .co-summary { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 40px 0; }
  .mobile-menu { display: block; }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 31px; }
  .section h2 { font-size: 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .row2 { grid-template-columns: 1fr; }
  .float-discount { padding: 11px 16px; font-size: 13px; }
}

/* Mobile menu panel */
.mobile-menu { display: none; background: #fff; border-bottom: 1px solid var(--border); }
.mobile-menu.show { display: block; }
.mobile-menu a { display: block; padding: 12px 24px; border-bottom: 1px solid var(--border); color: var(--ink); }

/* ============================================================================
   Reference-match visual layer (light hero, promo bar, feature bar, etc.)
   ========================================================================== */

/* Promo bar + countdown */
.promobar {
  background: linear-gradient(90deg, #5b3fa0, #7c5cc4); color: #fff; text-align: center;
  padding: 9px 16px; font-size: 13px; font-weight: 600; letter-spacing: .04em;
  display: flex; gap: 14px; align-items: center; justify-content: center; flex-wrap: wrap;
  text-transform: uppercase;
}
.promo-star { color: #ffd166; }
.promo-ends { font-size: 11.5px; opacity: .9; }
.promo-chip {
  background: #1a0f33; color: #fff; border-radius: 8px; padding: 3px 12px;
  font-family: var(--mono); font-size: 12.5px; font-weight: 600;
  font-variant-numeric: tabular-nums; letter-spacing: .02em;
}

/* Dark trust strip (overrides earlier .topstrip) */
.topstrip { background: #150b2b; color: #cbb8e8; padding: 9px 0; text-transform: none; letter-spacing: 0; }
.topstrip-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; font-size: 12.5px; }
.ts-left { display: flex; gap: 24px; flex-wrap: wrap; text-transform: uppercase; letter-spacing: .04em; }
.topstrip .tick { color: var(--violet-2); font-weight: 700; margin-right: 6px; }
.ts-right { color: #cbb8e8; white-space: nowrap; text-transform: uppercase; letter-spacing: .04em; }

/* Centered nav links */
.nav-links { justify-content: center; }

/* Light hero */
.hero-light {
  background: radial-gradient(1100px 520px at 74% 32%, #ece2ff 0%, #f3eefc 52%, #f5f2fc 100%);
  border-bottom: 1px solid var(--border); overflow: hidden; position: relative;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 30px; align-items: center; padding: 62px 24px 66px; }
.hero-copy { max-width: 560px; }
.pill-light {
  display: inline-flex; align-items: center; gap: 8px; background: #fff; border: 1px solid var(--border);
  color: var(--indigo); border-radius: 30px; padding: 8px 16px; font-size: 12px; font-weight: 600;
  letter-spacing: .1em; text-transform: uppercase;
}
.hero-title {
  font-family: var(--head); font-weight: 900; font-size: clamp(38px, 6vw, 68px); line-height: 1.0;
  letter-spacing: -0.028em; color: var(--ink); text-transform: uppercase; margin: 20px 0 18px;
}
.hero-title .accent { color: var(--violet); }
.hero-sub { color: #5b5470; font-size: 16.5px; max-width: 480px; margin: 0 0 26px; }
.hero-badges { display: flex; gap: 28px; flex-wrap: wrap; margin-top: 30px; }
.hb { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--ink); }
.hb-stars { color: #f5b301; letter-spacing: 2px; font-size: 15px; }
.hb-ic { font-size: 20px; }
.hb b { font-size: 13.5px; }
.hb-sub { color: var(--muted); font-size: 12px; }

/* Hero floating vials */
.hero-art { position: relative; min-height: 440px; }
.hero-art .hv { position: absolute; filter: drop-shadow(0 26px 38px rgba(45,27,82,.30)); }
/* PNGs are pre-tilted -12°; CSS adds variety on top */
.hv1 { width: 240px; left: 2%;  top: 22%; rotate: 0deg;  animation: floaty 6s ease-in-out infinite; z-index: 2; }
.hv2 { width: 270px; left: 31%; top: 0;   rotate: 16deg; animation: floaty 6s ease-in-out infinite .8s; z-index: 3; }
.hv3 { width: 225px; right: 2%; top: 32%; rotate: 26deg; animation: floaty 6s ease-in-out infinite 1.6s; z-index: 1; }
@keyframes floaty { 0%, 100% { translate: 0 0; } 50% { translate: 0 -16px; } }

/* Feature bar (5) */
.trust-features {
  background: #fff; border: 1px solid var(--border); border-radius: 20px; box-shadow: var(--shadow-md);
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 4px; padding: 20px 14px; margin: 26px 0 6px;
}
.tf { display: flex; gap: 12px; align-items: flex-start; padding: 6px 14px; border-right: 1px solid var(--border); }
.tf:last-child { border-right: none; }
.tf-ic { width: 40px; height: 40px; border-radius: 12px; background: var(--chip); display: flex; align-items: center; justify-content: center; font-size: 19px; flex: none; }
.tf b { font-family: var(--head); font-size: 14px; }
.tf span { font-size: 11.5px; color: var(--muted); line-height: 1.4; display: block; margin-top: 2px; }

/* Marquee — white pills */
.marquee-pills { padding: 20px 0; overflow: hidden; white-space: nowrap; }
.mp-track { display: inline-flex; gap: 16px; animation: marquee 34s linear infinite; }
.mp {
  display: inline-flex; align-items: center; gap: 10px; background: #fff; border: 1px solid var(--border);
  border-radius: 40px; padding: 8px 24px 8px 10px; font-size: 13.5px; font-weight: 600; color: var(--ink);
  box-shadow: var(--shadow-sm);
}
.mp img { width: 34px; height: 34px; object-fit: contain; }

/* About band — copy + cards */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.about-title { font-size: clamp(28px, 4vw, 44px); text-transform: uppercase; line-height: 1.06; margin: 16px 0 16px; }
.about-cards { display: flex; flex-direction: column; gap: 16px; }
.ac { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14); border-radius: 16px; padding: 22px 24px; }
.ac h4 { color: #fff; font-size: 16px; margin: 0 0 8px; }
.ac p { color: #c9b8ef; font-size: 13.5px; margin: 0; line-height: 1.6; }

/* Floating pill (gradient) + icon */
.float-discount { background: linear-gradient(90deg, var(--royal), var(--violet)); z-index: 75; }
.float-discount:hover { background: linear-gradient(90deg, var(--violet), var(--violet-2)); }
.fd-ic { font-size: 17px; }

/* Vial PNGs are transparent — don't multiply-blend them */
.pcard-img img { width: 84%; height: 84%; mix-blend-mode: normal; }
.pd-imgwrap img { width: 74%; height: 74%; mix-blend-mode: normal; }

/* Scroll-reveal statement */
.reveal-section {
  position: relative; height: 200vh;
  background: radial-gradient(1000px 600px at 60% 40%, #ece2ff 0%, #f3eefc 55%, #f6f3fc 100%);
}
.reveal-sticky {
  position: sticky; top: 0; height: 100vh; overflow: hidden;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
}
.reveal-eyebrow {
  font-family: var(--head); font-size: 13px; font-weight: 700; letter-spacing: .3em;
  text-transform: uppercase; color: var(--indigo); position: relative; z-index: 3;
}
.reveal-text {
  font-family: var(--head); font-weight: 900; font-size: clamp(46px, 12vw, 168px);
  line-height: .95; text-align: center; text-transform: uppercase; letter-spacing: -0.03em;
  margin: 0; max-width: 92vw; position: relative; z-index: 3;
}
.rv-word {
  color: #e5ddf5; -webkit-text-stroke: 1px #d8ceef;
  transition: color .35s ease, -webkit-text-stroke-color .35s ease; display: inline;
}
.rv-word.on { color: var(--violet); -webkit-text-stroke-color: var(--violet); }
.rv-vial {
  position: absolute; z-index: 1; filter: drop-shadow(0 20px 30px rgba(45,27,82,.22));
  animation: floaty 6s ease-in-out infinite;
}
.rv-v1 { width: 150px; left: 5%;  top: 16%;  opacity: .85; rotate: -8deg; }
.rv-v2 { width: 120px; right: 7%; bottom: 12%; opacity: .8;  rotate: 10deg; animation-delay: .9s; }
.rv-v3 { width: 100px; right: 16%; top: 14%;  opacity: .55; rotate: 16deg; animation-delay: 1.7s; }
@media (max-width: 640px) {
  .reveal-section { height: 160vh; }
  .rv-v1 { width: 90px; } .rv-v2 { width: 72px; } .rv-v3 { display: none; }
}

/* Shipping method + insurance (checkout) */
.ship-block { margin: 16px 0 8px; }
.ship-title { font-size: 13px; font-weight: 600; margin-bottom: 8px; }
.ship-opt {
  display: flex; align-items: center; gap: 10px; border: 1px solid var(--border);
  border-radius: 12px; padding: 12px 14px; margin-bottom: 8px; cursor: pointer;
  transition: border-color .15s, background .15s;
}
.ship-opt input { accent-color: var(--royal); flex: none; }
.ship-opt.on { border-color: var(--violet); background: var(--chip); }
.ship-info { flex: 1; display: flex; flex-direction: column; }
.ship-info b { font-size: 13.5px; }
.ship-info small { font-size: 11.5px; color: var(--muted); }
.ship-price { font-family: var(--head); color: var(--indigo); white-space: nowrap; font-size: 14px; }

.ins-box {
  display: flex; align-items: flex-start; gap: 12px; border: 1px solid var(--border);
  border-radius: 12px; padding: 14px; margin: 6px 0 14px; cursor: pointer;
  transition: border-color .15s, background .15s; position: relative;
}
.ins-box input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.ins-box.on { border-color: var(--green); background: #f0fdf4; }
.ins-check {
  width: 22px; height: 22px; border-radius: 6px; border: 1px solid var(--border);
  flex: none; display: flex; align-items: center; justify-content: center; margin-top: 1px;
}
.ins-box.on .ins-check { background: var(--green); border-color: var(--green); }
.ins-box.on .ins-check::after { content: "✓"; color: #fff; font-size: 14px; font-weight: 700; }
.ins-text { display: flex; flex-direction: column; }
.ins-text b { font-size: 13.5px; }
.ins-text small { font-size: 12px; color: var(--muted); margin-top: 3px; line-height: 1.4; }
.ins-plus { color: var(--green); font-size: 12.5px; }

/* Payment method picker (checkout) */
.pay-methods { display: flex; flex-wrap: wrap; gap: 8px; margin: 4px 0; }
.pay-opt { position: relative; display: inline-flex; }
.pay-opt input { position: absolute; inset: 0; opacity: 0; cursor: pointer; margin: 0; }
.pay-opt span {
  display: inline-flex; align-items: center; border: 1px solid var(--border); background: #fff;
  color: var(--ink); border-radius: 30px; padding: 10px 16px; font-size: 13.5px; font-weight: 500;
  cursor: pointer; transition: background .15s, color .15s, border-color .15s;
}
.pay-opt span:hover { border-color: var(--violet); }
.pay-opt input:checked + span { background: var(--royal); color: #fff; border-color: var(--royal); }
.pay-opt input:focus-visible + span { outline: 2px solid var(--violet); outline-offset: 2px; }

/* Catalog page (All Peptides) */
.catalog-search { position: relative; max-width: 560px; margin: 10px 0 16px; }
.catalog-search input {
  width: 100%; padding: 14px 18px 14px 46px; border: 1px solid var(--border);
  border-radius: 30px; font-size: 14.5px; background: #fff;
}
.catalog-search .cs-ico {
  position: absolute; left: 18px; top: 50%; transform: translateY(-50%);
  color: var(--muted); font-size: 18px; pointer-events: none;
}
.catalog-count {
  font-family: var(--head); font-weight: 700; font-size: 12.5px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--indigo); margin: 20px 0 16px;
}

/* COA gallery page */
.coa-page-hero { margin-bottom: 20px; }
.coa-filters { margin: 6px 0 12px; }
.coa-filters input {
  width: 100%; max-width: 540px; padding: 13px 18px; border: 1px solid var(--border);
  border-radius: 30px; font-size: 14px; background: #fff;
}
.coa-count {
  font-family: var(--head); font-weight: 700; font-size: 12.5px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--indigo); margin: 20px 0 16px;
}
.coa-grid { display: grid; gap: 22px; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.coa-card {
  background: #fff; border: 1px solid var(--border); border-radius: 18px; overflow: hidden;
  box-shadow: var(--shadow-sm); display: flex; flex-direction: column;
  transition: transform .16s, box-shadow .16s;
}
.coa-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.coa-card-head {
  background: linear-gradient(120deg, var(--royal), var(--indigo)); color: #fff;
  padding: 18px 20px; display: flex; align-items: center; gap: 12px; position: relative;
}
.coa-ico {
  width: 40px; height: 40px; border-radius: 10px; background: rgba(255,255,255,.16);
  display: flex; align-items: center; justify-content: center; font-size: 19px; flex: none;
}
.coa-card-name { font-family: var(--head); font-weight: 800; font-size: 18px; line-height: 1.1; }
.coa-card-cat { font-size: 10.5px; letter-spacing: .06em; text-transform: uppercase; color: rgba(255,255,255,.82); margin-top: 2px; }
.coa-badge {
  position: absolute; top: 16px; right: 18px; background: rgba(255,255,255,.2); color: #fff;
  font-size: 10px; font-weight: 700; padding: 4px 10px; border-radius: 20px; letter-spacing: .05em;
}
.coa-card-body { padding: 18px 20px; display: flex; flex-direction: column; gap: 14px; flex: 1; }
.coa-trust { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.coa-trust b { font-family: var(--head); font-size: 12.5px; display: block; color: var(--ink); }
.coa-trust span { font-size: 10.5px; color: var(--muted); }
.coa-thumb {
  border: 1px solid var(--border); border-radius: 12px; overflow: hidden; cursor: pointer;
  background: var(--chip); height: 210px; display: flex; align-items: flex-start; justify-content: center;
}
.coa-thumb img { width: 100%; object-fit: cover; object-position: top center; transition: transform .25s; }
.coa-thumb:hover img { transform: scale(1.03); }
.coa-card-actions { display: flex; gap: 8px; align-items: center; margin-top: auto; }
.coa-card-actions .btn-primary { flex: 1; }

/* Best Sellers carousel */
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 26px; }
.sec-eyebrow { font-family: var(--head); font-size: 12px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--indigo); }
h2.sec-title { font-family: var(--head); font-weight: 800; font-size: clamp(34px, 4.6vw, 56px); letter-spacing: -0.03em; margin: 6px 0 10px; text-transform: none; }
.sec-sub { color: var(--muted); font-size: 15px; max-width: 420px; margin: 0; }
.sec-side { display: flex; flex-direction: column; align-items: flex-end; gap: 16px; }
.seeall {
  background: var(--chip); color: var(--indigo); border-radius: 30px; padding: 13px 24px;
  font-family: var(--head); font-weight: 700; font-size: 12.5px; letter-spacing: .12em;
  text-transform: uppercase; white-space: nowrap;
}
.seeall:hover { background: var(--violet); color: #fff; }
.bs-arrows { display: flex; gap: 10px; }
.bs-arrow {
  width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--border); background: #fff;
  color: var(--ink); font-size: 17px; cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: background .15s, color .15s, border-color .15s;
}
.bs-arrow:hover { background: var(--chip); color: var(--violet); border-color: var(--violet); }
.bs-track {
  display: grid; grid-auto-flow: column; grid-auto-columns: 300px; gap: 18px;
  overflow-x: auto; scroll-snap-type: x mandatory; scroll-behavior: smooth;
  padding: 4px 4px 14px; scrollbar-width: none;
}
.bs-track::-webkit-scrollbar { display: none; }
.bs-card {
  scroll-snap-align: start; background: linear-gradient(180deg, #f2edfc 0%, #faf8fe 100%);
  border: 1px solid var(--border); border-radius: 22px; padding: 20px; display: flex;
  flex-direction: column; transition: transform .16s, box-shadow .16s, border-color .16s;
}
.bs-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--violet); }
.bs-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.bs-name { font-family: var(--head); font-weight: 700; font-size: 17px; color: var(--ink); }
.bs-price { font-size: 14px; font-weight: 700; color: var(--ink); white-space: nowrap; }
.bs-price .fr { font-weight: 500; color: var(--muted); }
.bs-img { display: flex; align-items: center; justify-content: center; padding: 18px 0 10px; min-height: 250px; }
.bs-img img { width: 190px; filter: drop-shadow(0 20px 26px rgba(45,27,82,.22)); transition: transform .2s; }
.bs-card:hover .bs-img img { transform: scale(1.04) rotate(-2deg); }
.bs-foot { display: flex; gap: 10px; align-items: center; margin-top: auto; }
.bs-cart {
  width: 46px; height: 46px; min-width: 46px; border-radius: 50%; border: 1px solid var(--border);
  background: #fff; font-size: 17px; cursor: pointer; display: flex; align-items: center;
  justify-content: center; transition: background .15s, border-color .15s;
}
.bs-cart:hover { background: var(--chip); border-color: var(--violet); }
.bs-view {
  flex: 0 0 auto; background: #fff; border: 1px solid var(--border); color: var(--ink);
  border-radius: 30px; padding: 12px 24px; font-family: var(--head); font-weight: 600; font-size: 14px;
}
.bs-view:hover { border-color: var(--violet); color: var(--violet); }

/* Reference-match responsive */
@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; padding-top: 44px; padding-bottom: 48px; }
  .hero-art { min-height: 340px; margin-top: 8px; }
  .trust-features { grid-template-columns: repeat(2, 1fr); }
  .tf { border-right: none; }
  .about-grid { grid-template-columns: 1fr; }
  .ts-right { display: none; }
  .topstrip-inner { justify-content: center; }
}
@media (max-width: 560px) {
  .trust-features { grid-template-columns: 1fr; }
  .hero-badges { gap: 16px; }
  .hv1 { width: 150px; } .hv2 { width: 170px; } .hv3 { width: 140px; }
}

/* ============================================================================
   MOBILE HARDENING — prevent horizontal overflow; tune layout for phones
   ========================================================================== */
html, body { max-width: 100%; overflow-x: hidden; }
img, svg, iframe, video { max-width: 100%; }

/* Grids can never exceed the viewport width (min() caps the track) */
.grid       { grid-template-columns: repeat(auto-fill, minmax(min(260px, 100%), 1fr)); }
.coa-grid   { grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr)); }
.cat-grid   { grid-template-columns: repeat(auto-fill, minmax(min(220px, 100%), 1fr)); }

@media (max-width: 720px) {
  .wrap { padding: 0 16px; }
  .section { padding: 38px 0; }
  .nav-inner { gap: 10px; height: 60px; }
  .brand { font-size: 17px; letter-spacing: .04em; }
  /* declutter the top bar — these move into the ☰ menu */
  #askBtn, #calcBtn, #searchBtn { display: none; }
  .nav-actions { gap: 8px; }

  .promobar { font-size: 11.5px; gap: 8px; padding: 8px 12px; }
  .promo-chip { font-size: 11px; padding: 2px 8px; }
  .topstrip-inner { justify-content: center; }
  .ts-left { gap: 14px; font-size: 11.5px; }

  .hero-grid { grid-template-columns: 1fr; padding: 30px 16px 40px; }
  .hero-art { min-height: 300px; }
  .hero-badges { gap: 16px; }

  .sec-head { flex-direction: column; align-items: flex-start; gap: 14px; }
  .sec-side { align-items: flex-start; }
  .bs-track { grid-auto-columns: 82vw; }

  .about-grid { grid-template-columns: 1fr; gap: 24px; }
  .trust-features { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }

  .co-grid, .pd-grid { grid-template-columns: 1fr; }
  .co-summary, .pd-media { position: static; }
  .co-card { padding: 20px; }

  .modal { padding: 12px; align-items: flex-start; }
  .modal-card { margin-top: 24px; }
  .coa-viewer iframe { height: 70vh; }
  .drawer { width: 100%; max-width: 100%; }

  .reveal-section { height: 150vh; }
  .reveal-text { font-size: clamp(38px, 14vw, 90px); }
}

@media (max-width: 460px) {
  .trust-features { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: clamp(34px, 12vw, 52px); }
  .pd-title, .sec-title { font-size: 30px; }
  .hb { font-size: 12px; }
  .pay-opt span, .chip { font-size: 12.5px; padding: 8px 13px; }
  .btn { padding: 12px 20px; }
  .float-discount { padding: 11px 15px; font-size: 13px; bottom: 16px; left: 16px; }
  .coa-thumb { height: 240px; }
}