/* ============================================================
   USA BIOTECH LABS — design system
   Navy #0B2050 · Red #C01010 · Paper #FFFFFF
   ============================================================ */

:root {
  --navy-900: #081838;
  --navy-800: #0B2050;
  --navy-700: #123062;
  --navy-600: #1B3F7A;
  --navy-100: #E8EDF6;
  --red-600: #C01010;
  --red-700: #A00D0D;
  --red-100: #FBE9E9;
  --ink-900: #101623;
  --ink-600: #45506B;
  --ink-400: #7A849E;
  --line: #E3E7EF;
  --paper: #FFFFFF;
  --paper-2: #F6F8FB;
  --ok-600: #0E7A3D;
  --ok-100: #E6F4EC;
  --gold: #B98A2F;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 1px 2px rgba(8, 24, 56, .05), 0 10px 30px rgba(8, 24, 56, .07);
  --shadow-lg: 0 20px 60px rgba(8, 24, 56, .16);
  --font: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "Cascadia Code", "SF Mono", Consolas, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--ink-900);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
.wrap { width: min(1200px, 92vw); margin: 0 auto; }
.mono { font-family: var(--mono); letter-spacing: .02em; }

/* ---------- typography ---------- */
h1, h2, h3, h4 { line-height: 1.15; letter-spacing: -.01em; color: var(--navy-900); font-weight: 700; }
h1 { font-size: clamp(2.1rem, 4.6vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); }
h3 { font-size: 1.25rem; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .74rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase;
  color: var(--navy-600); margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--red-600); }
.eyebrow .coord { color: var(--ink-400); font-weight: 500; letter-spacing: .08em; }
.lead { color: var(--ink-600); font-size: 1.06rem; max-width: 62ch; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 22px; border-radius: 10px; font-weight: 600; font-size: .95rem;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--red-600); color: #fff; box-shadow: 0 8px 20px rgba(192, 16, 16, .25); }
.btn-primary:hover { background: var(--red-700); }
.btn-navy { background: var(--navy-800); color: #fff; }
.btn-navy:hover { background: var(--navy-700); }
.btn-light { background: #fff; color: var(--navy-900); border: 1px solid var(--line); }
.btn-light:hover { border-color: var(--navy-600); }
.btn-ghost { color: var(--navy-700); padding: 13px 10px; }
.btn-ghost:hover { color: var(--red-600); }
.btn-lg { padding: 16px 28px; font-size: 1rem; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.arrow { transition: transform .15s ease; }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- topbar ---------- */
.topbar { background: var(--navy-900); color: #C7D3EA; overflow: hidden; font-size: .8rem; font-weight: 500; }
.topbar__track { display: flex; gap: 48px; padding: 9px 0; width: max-content; animation: tick 36s linear infinite; }
.topbar__track span { display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; }
.topbar__track span::before { content: "\2726"; color: var(--red-600); font-size: .7rem; }
@keyframes tick { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@keyframes tick-rev { from { transform: translateX(-50%); } to { transform: translateX(0); } }

/* ---------- header ---------- */
.nav { position: sticky; top: 0; z-index: 60; background: rgba(255,255,255,.92); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 10px 0; }
.nav__links { display: flex; align-items: center; gap: 4px; }
.nav__link { padding: 10px 14px; border-radius: 8px; font-weight: 600; font-size: .93rem; color: var(--ink-900); }
.nav__link:hover { color: var(--red-600); background: var(--paper-2); }
.nav__link.is-active { color: var(--red-600); }
.nav__logo img { height: 62px; width: auto; }
.nav__actions { display: flex; align-items: center; gap: 6px; }
.icon-btn { position: relative; width: 42px; height: 42px; border-radius: 10px; display: inline-flex; align-items: center; justify-content: center; color: var(--navy-900); }
.icon-btn:hover { background: var(--paper-2); }
.icon-btn .badge {
  position: absolute; top: 4px; right: 4px; min-width: 17px; height: 17px; padding: 0 4px;
  background: var(--red-600); color: #fff; font-size: .66rem; font-weight: 700;
  border-radius: 9px; display: flex; align-items: center; justify-content: center;
}
@media (max-width: 860px) { .nav__links { display: none; } }

/* ---------- hero ---------- */
.hero { position: relative; background: linear-gradient(180deg, var(--paper-2) 0%, #fff 100%); overflow: hidden; }
.hero__grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; padding: 72px 0 84px; }
.hero h1 em { font-style: normal; color: var(--red-600); }
.hero__actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.hero__promo {
  margin-top: 26px; display: inline-flex; align-items: center; gap: 14px;
  border: 1px dashed var(--navy-600); border-radius: var(--radius); padding: 12px 18px;
  font-weight: 600; color: var(--navy-800); background: #fff;
}
.hero__promo strong { color: var(--red-600); }
.hero__stats { display: flex; gap: 34px; margin-top: 40px; flex-wrap: wrap; }
.stat { display: flex; flex-direction: column; }
.stat__num { font-size: 1.7rem; font-weight: 800; color: var(--navy-900); }
.stat__num .star { color: var(--gold); }
.stat__label { font-size: .82rem; color: var(--ink-400); font-weight: 600; }
.hero__visual { position: relative; }
.hero__visual .hero-photo {
  width: 100%; border-radius: 22px; box-shadow: var(--shadow-lg);
  border: 1px solid var(--line); transform: rotate(1.2deg); display: block;
}
.hero__visual .vial-card {
  background: #fff; border: 1px solid var(--line); border-radius: 22px; padding: 34px;
  box-shadow: var(--shadow-lg); transform: rotate(2deg);
}
.hero__visual .coord-tag {
  position: absolute; left: -8px; bottom: -14px; background: var(--navy-800); color: #fff;
  font-size: .72rem; font-weight: 600; padding: 8px 14px; border-radius: 999px; letter-spacing: .06em;
}

/* ---------- generated imagery ---------- */
.img-feature {
  width: 100%; border-radius: var(--radius); border: 1px solid var(--line);
  box-shadow: var(--shadow); display: block; object-fit: cover;
}
.feature-duo { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.feature-duo--rev .feature-duo__img { order: 2; }
@media (max-width: 900px) { .feature-duo { grid-template-columns: 1fr; } .feature-duo--rev .feature-duo__img { order: 0; } }
.gcard { overflow: hidden; }
.gcard__img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; border-radius: calc(var(--radius) - 5px); margin-bottom: 2px; }
.page-hero--img img { border-radius: var(--radius); box-shadow: var(--shadow); margin-top: 30px; width: 100%; }
.newsletter--photo {
  background-image: linear-gradient(90deg, rgba(8,24,56,.94) 0%, rgba(8,24,56,.82) 55%, rgba(8,24,56,.45) 100%), url("../img/generated/newsletter-vials.jpg");
  background-size: cover; background-position: center right;
}
.card__media img { width: 100%; height: 100%; object-fit: cover; }
.pdp__media img { width: 100%; height: auto; border-radius: 12px; }
@media (max-width: 940px) { .hero__grid { grid-template-columns: 1fr; padding: 48px 0 60px; } }

/* ---------- trust marquee ---------- */
.marquee { border-block: 1px solid var(--line); background: #fff; overflow: hidden; }
.marquee__track { display: flex; gap: 56px; padding: 14px 0; width: max-content; animation: tick-rev 30s linear infinite; }
.marquee__track span { white-space: nowrap; font-weight: 700; font-size: .86rem; color: var(--navy-700); display: inline-flex; gap: 9px; align-items: center; }
.marquee__track span::before { content: "\2713"; color: var(--ok-600); }

/* ---------- sections ---------- */
.section { padding: 76px 0; }
.section--tint { background: var(--paper-2); }
.section__head { display: flex; justify-content: space-between; align-items: end; gap: 20px; margin-bottom: 36px; flex-wrap: wrap; }

/* ---------- product cards ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(255px, 1fr)); gap: 18px; }
.card {
  position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px; display: flex; flex-direction: column; gap: 10px;
  transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: var(--navy-600); }
.card__media { position: relative; background: var(--paper-2); border-radius: var(--radius-sm); overflow: hidden; aspect-ratio: 1; display: flex; align-items: center; justify-content: center; }
.card__media svg { width: 82%; height: 82%; }
.card__stock { position: absolute; top: 10px; left: 10px; background: var(--ok-100); color: var(--ok-600); font-size: .68rem; font-weight: 700; padding: 4px 9px; border-radius: 999px; letter-spacing: .04em; }
.card__lot { font-size: .72rem; color: var(--ink-400); font-weight: 600; }
.card__lot b { color: var(--navy-600); font-weight: 700; }
.card__name { font-size: 1.06rem; font-weight: 700; color: var(--navy-900); }
.card__rating { display: flex; align-items: center; gap: 6px; font-size: .8rem; color: var(--ink-600); }
.card__rating .stars { color: var(--gold); letter-spacing: 1px; }
.card__meta { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.card__purity { font-size: .74rem; font-weight: 700; color: var(--ok-600); background: var(--ok-100); padding: 3px 8px; border-radius: 6px; }
.card__price { font-size: 1.08rem; font-weight: 800; color: var(--navy-900); }
.card__price .from { font-size: .74rem; color: var(--ink-400); font-weight: 600; }
.card__foot { display: flex; gap: 8px; margin-top: auto; }
.card__foot .btn { flex: 1; padding: 10px 12px; font-size: .86rem; border-radius: 9px; }

/* ---------- guarantee cards ---------- */
.gcards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.gcard {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px;
  display: flex; flex-direction: column; gap: 12px; transition: box-shadow .2s, transform .2s;
}
.gcard:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.gcard__icon {
  width: 46px; height: 46px; border-radius: 12px; background: var(--navy-100);
  display: flex; align-items: center; justify-content: center; font-size: 1.3rem; color: var(--navy-700);
}
.gcard p { color: var(--ink-600); font-size: .93rem; }
.gcard .link { color: var(--red-600); font-weight: 700; font-size: .88rem; margin-top: auto; }

/* ---------- reviews ---------- */
.reviews { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.review { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; display: flex; flex-direction: column; gap: 12px; }
.review__stars { color: var(--gold); letter-spacing: 2px; }
.review p { color: var(--ink-600); font-size: .93rem; }
.review__who { display: flex; align-items: center; gap: 10px; margin-top: auto; }
.review__avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--navy-800); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: .85rem; }
.review__name { font-weight: 700; font-size: .88rem; }
.review__meta { font-size: .76rem; color: var(--ink-400); }

/* ---------- newsletter ---------- */
.newsletter { background: var(--navy-900); color: #fff; border-radius: 22px; padding: 54px; display: grid; grid-template-columns: 1.2fr 1fr; gap: 34px; align-items: center; position: relative; overflow: hidden; }
.newsletter::after { content: ""; position: absolute; right: -80px; top: -80px; width: 260px; height: 260px; border-radius: 50%; background: rgba(192,16,16,.18); }
.newsletter h3 { color: #fff; font-size: 1.6rem; }
.newsletter p { color: #B9C6DF; margin-top: 8px; }
.newsletter form { display: flex; gap: 10px; position: relative; z-index: 1; }
.newsletter input {
  flex: 1; padding: 14px 18px; border-radius: 10px; border: 1px solid rgba(255,255,255,.25);
  background: rgba(255,255,255,.08); color: #fff; font: inherit; outline: none;
}
.newsletter input::placeholder { color: #8FA2C6; }
.newsletter input:focus { border-color: var(--red-600); }
@media (max-width: 860px) { .newsletter { grid-template-columns: 1fr; padding: 36px; } .newsletter form { flex-direction: column; } }

/* ---------- page hero (inner pages) ---------- */
.page-hero { background: var(--paper-2); border-bottom: 1px solid var(--line); padding: 56px 0 46px; }
.page-hero h1 { max-width: 22ch; }
.page-hero .lead { margin-top: 14px; }

/* ---------- shop toolbar ---------- */
.toolbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin: 30px 0 22px; flex-wrap: wrap; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip { padding: 9px 16px; border-radius: 999px; border: 1px solid var(--line); background: #fff; font-weight: 600; font-size: .86rem; color: var(--ink-600); }
.chip:hover { border-color: var(--navy-600); }
.chip.is-active { background: var(--navy-800); border-color: var(--navy-800); color: #fff; }
.select-wrap select {
  padding: 10px 14px; border-radius: 10px; border: 1px solid var(--line); background: #fff;
  font: inherit; font-weight: 600; color: var(--ink-900); outline: none; cursor: pointer;
}

/* ---------- PDP ---------- */
.pdp { display: grid; grid-template-columns: minmax(320px, 460px) 1fr; gap: 48px; padding: 48px 0; align-items: start; }
@media (max-width: 940px) { .pdp { grid-template-columns: 1fr; } }
.pdp__media { position: sticky; top: 96px; background: var(--paper-2); border: 1px solid var(--line); border-radius: 20px; padding: 38px; }
.pdp__media svg { width: 100%; height: auto; }
.pdp__cat { color: var(--ink-400); font-size: .84rem; font-weight: 600; }
.pdp__title { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin: 6px 0 10px; }
.pdp__rating { background: none; display: inline-flex; align-items: center; gap: 8px; font-size: .88rem; color: var(--ink-600); padding: 4px 0; }
.pdp__rating .stars { color: var(--gold); }
.pdp__price { font-size: 2rem; font-weight: 800; color: var(--navy-900); margin: 12px 0 4px; }
.pdp__price .from { font-size: .9rem; color: var(--ink-400); font-weight: 600; }
.pdp__short { color: var(--ink-600); margin: 10px 0 22px; max-width: 60ch; }
.opt-label { font-size: .8rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-600); margin-bottom: 10px; }
.sizes { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 22px; }
.size-opt { position: relative; }
.size-opt input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.size-opt span {
  display: inline-flex; flex-direction: column; gap: 2px; padding: 10px 18px; border-radius: 10px;
  border: 1.5px solid var(--line); background: #fff; font-weight: 700; font-size: .92rem; cursor: pointer;
  transition: border-color .15s, background .15s;
}
.size-opt span small { font-weight: 600; color: var(--ink-400); font-size: .78rem; }
.size-opt input:checked + span { border-color: var(--navy-800); background: var(--navy-100); color: var(--navy-900); }
.qty-row { display: flex; align-items: center; gap: 16px; margin-bottom: 22px; }
.qty { display: inline-flex; align-items: center; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.qty button { width: 40px; height: 44px; font-size: 1.2rem; color: var(--ink-600); }
.qty button:hover { background: var(--paper-2); color: var(--red-600); }
.qty b { min-width: 44px; text-align: center; font-size: 1rem; }
.pdp__badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.badge-pill { display: inline-flex; align-items: center; gap: 7px; font-size: .78rem; font-weight: 700; color: var(--navy-700); background: var(--navy-100); padding: 7px 12px; border-radius: 999px; }
.ship-note { margin-top: 14px; font-size: .85rem; color: var(--ok-600); font-weight: 600; }

/* PDP sections */
.pdp-sec { padding: 54px 0; border-top: 1px solid var(--line); }
.pdp-sec__head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 24px; }
.pdp-sec__num { font-family: var(--mono); color: var(--red-600); font-weight: 700; font-size: .9rem; }
.spec-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.spec-list div { padding: 15px 20px; border-bottom: 1px solid var(--line); background: #fff; }
.spec-list div:nth-child(odd) { background: var(--paper-2); }
.spec-list b { display: block; font-size: .74rem; text-transform: uppercase; letter-spacing: .07em; color: var(--ink-400); margin-bottom: 3px; }
.accordion { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.accordion details { border-bottom: 1px solid var(--line); }
.accordion details:last-child { border-bottom: 0; }
.accordion summary {
  list-style: none; cursor: pointer; padding: 17px 22px; font-weight: 700; color: var(--navy-900);
  display: flex; justify-content: space-between; align-items: center; background: #fff;
}
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary::after { content: "+"; color: var(--red-600); font-size: 1.2rem; font-weight: 600; }
.accordion details[open] summary::after { content: "\2212"; }
.accordion .acc-body { padding: 0 22px 20px; color: var(--ink-600); font-size: .95rem; }

/* COA panel on PDP */
.coa-panel { display: grid; grid-template-columns: 1.2fr .8fr; gap: 26px; align-items: start; }
@media (max-width: 860px) { .coa-panel { grid-template-columns: 1fr; } }
.coa-doc { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; overflow: hidden; }
.coa-doc__top { background: var(--navy-800); color: #fff; padding: 16px 22px; display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.coa-doc__top .lot { font-family: var(--mono); font-size: .82rem; color: #AFD0FF; }
.coa-doc__rows { display: grid; grid-template-columns: 1fr 1fr; }
.coa-doc__rows div { padding: 13px 22px; border-bottom: 1px solid var(--line); }
.coa-doc__rows div:nth-child(odd) { border-right: 1px solid var(--line); }
.coa-doc__rows b { display: block; font-size: .72rem; text-transform: uppercase; letter-spacing: .07em; color: var(--ink-400); margin-bottom: 2px; }
.coa-doc__rows .ok { color: var(--ok-600); font-weight: 700; }
.coa-actions { display: flex; flex-direction: column; gap: 10px; }
.coa-actions .btn { justify-content: flex-start; }
.coa-note { font-size: .82rem; color: var(--ink-400); margin-top: 6px; }

/* ---------- COA archive ---------- */
.coa-search { position: relative; margin: 26px 0 30px; }
.coa-search input {
  width: 100%; padding: 16px 20px 16px 48px; border-radius: 14px; border: 1.5px solid var(--line);
  font: inherit; font-size: 1rem; outline: none; background: #fff; box-shadow: var(--shadow);
}
.coa-search input:focus { border-color: var(--navy-600); }
.coa-search::before { content: "\1F50D"; position: absolute; left: 18px; top: 50%; transform: translateY(-50%); font-size: 1rem; opacity: .6; }
.coa-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 16px; padding-bottom: 60px; }
.coa-card {
  text-align: left; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; display: flex; gap: 14px; align-items: center;
  transition: box-shadow .2s, transform .2s, border-color .2s;
}
.coa-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); border-color: var(--navy-600); }
.coa-card__vial { width: 64px; height: 64px; flex: none; background: var(--paper-2); border-radius: 10px; display: flex; align-items: center; justify-content: center; }
.coa-card__vial svg { width: 46px; height: 46px; }
.coa-card__body { min-width: 0; }
.coa-card__cat { font-size: .72rem; color: var(--ink-400); font-weight: 600; }
.coa-card__name { font-weight: 800; color: var(--navy-900); font-size: 1rem; }
.coa-card__lot { font-family: var(--mono); font-size: .78rem; color: var(--navy-600); }
.coa-card__purity { display: inline-block; margin-top: 4px; font-size: .72rem; font-weight: 700; color: var(--ok-600); background: var(--ok-100); border-radius: 6px; padding: 2px 8px; }

/* COA modal */
.coa-overlay { position: fixed; inset: 0; z-index: 100; display: none; }
.coa-overlay.is-open { display: block; }
.coa-overlay__bg { position: absolute; inset: 0; background: rgba(8, 24, 56, .6); backdrop-filter: blur(3px); }
.coa-modal {
  position: absolute; inset: 4vh 6vw; background: #fff; border-radius: 18px; overflow: hidden;
  display: grid; grid-template-columns: 1fr 300px; box-shadow: var(--shadow-lg);
}
@media (max-width: 900px) { .coa-modal { grid-template-columns: 1fr; inset: 3vh 4vw; } }
.coa-modal__main { display: flex; flex-direction: column; min-width: 0; }
.coa-modal__bar { display: flex; justify-content: space-between; align-items: center; gap: 14px; padding: 14px 20px; border-bottom: 1px solid var(--line); }
.coa-modal__bar .lot { font-family: var(--mono); color: var(--navy-600); font-size: .85rem; }
.coa-modal__bar button { font-weight: 700; color: var(--ink-600); padding: 6px 12px; border-radius: 8px; }
.coa-modal__bar button:hover { background: var(--paper-2); color: var(--red-600); }
.coa-modal__iframe { flex: 1; border: 0; width: 100%; background: var(--paper-2); }
.coa-modal__aside { border-left: 1px solid var(--line); padding: 24px; display: flex; flex-direction: column; gap: 16px; }
.coa-modal__aside .btn { width: 100%; }
@media (max-width: 900px) { .coa-modal__aside { border-left: 0; border-top: 1px solid var(--line); } }

/* ---------- cart drawer ---------- */
.cart-backdrop { position: fixed; inset: 0; z-index: 90; background: rgba(8,24,56,.45); display: none; }
.cart-backdrop.is-open { display: block; }
.cart-drawer {
  position: fixed; top: 0; right: -420px; z-index: 95; width: min(400px, 94vw); height: 100%;
  background: #fff; box-shadow: var(--shadow-lg); transition: right .28s ease;
  display: flex; flex-direction: column;
}
.cart-drawer.is-open { right: 0; }
.cart-drawer__head { display: flex; justify-content: space-between; align-items: center; padding: 20px 22px; border-bottom: 1px solid var(--line); }
.cart-drawer__head h3 { font-size: 1.1rem; }
.cart-drawer__body { flex: 1; overflow-y: auto; padding: 18px 22px; display: flex; flex-direction: column; gap: 14px; }
.cart-item { display: grid; grid-template-columns: 58px 1fr auto; gap: 12px; align-items: center; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 10px; }
.cart-item__vial { width: 58px; height: 58px; background: var(--paper-2); border-radius: 8px; display: flex; align-items: center; justify-content: center; }
.cart-item__vial svg { width: 42px; height: 42px; }
.cart-item__name { font-weight: 700; font-size: .9rem; }
.cart-item__var { font-size: .76rem; color: var(--ink-400); }
.cart-item__price { font-weight: 800; font-size: .92rem; }
.cart-item__rm { font-size: .72rem; color: var(--ink-400); text-decoration: underline; cursor: pointer; }
.cart-drawer__foot { border-top: 1px solid var(--line); padding: 20px 22px; display: flex; flex-direction: column; gap: 12px; }
.cart-drawer__total { display: flex; justify-content: space-between; font-size: 1.05rem; font-weight: 800; }
.cart-empty { text-align: center; color: var(--ink-400); padding: 40px 10px; }

/* ---------- forms ---------- */
.form { display: flex; flex-direction: column; gap: 16px; max-width: 560px; }
.field label { display: block; font-size: .82rem; font-weight: 700; color: var(--ink-600); margin-bottom: 6px; }
.field input, .field textarea, .field select {
  width: 100%; padding: 13px 16px; border: 1.5px solid var(--line); border-radius: 10px;
  font: inherit; outline: none; background: #fff; transition: border-color .15s;
}
.field input:focus, .field textarea:focus { border-color: var(--navy-600); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 640px) { .field-row { grid-template-columns: 1fr; } }
.hp { position: absolute; left: -9999px; opacity: 0; }

/* ---------- FAQ ---------- */
.faq-list { display: flex; flex-direction: column; gap: 10px; max-width: 780px; }
.faq-list details { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; overflow: hidden; }
.faq-list summary { list-style: none; cursor: pointer; padding: 18px 22px; font-weight: 700; display: flex; justify-content: space-between; align-items: center; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; color: var(--red-600); font-size: 1.3rem; }
.faq-list details[open] summary::after { content: "\2212"; }
.faq-list .faq-body { padding: 0 22px 20px; color: var(--ink-600); }

/* ---------- legal pages ---------- */
.legal { max-width: 780px; }
.legal h2 { font-size: 1.3rem; margin: 34px 0 12px; }
.legal p, .legal li { color: var(--ink-600); margin-bottom: 10px; }
.legal ul { padding-left: 22px; }
.legal .meta { color: var(--ink-400); font-size: .86rem; }
.legal .rule-card { border: 1px solid var(--line); border-left: 4px solid var(--red-600); border-radius: var(--radius-sm); padding: 18px 22px; margin: 18px 0; background: #fff; }

/* ---------- steps (numbered) ---------- */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; position: relative; }
.step__num { font-family: var(--mono); color: var(--red-600); font-weight: 800; font-size: .85rem; letter-spacing: .1em; }
.step h3 { margin: 8px 0 10px; }
.step p { color: var(--ink-600); font-size: .93rem; }

/* ---------- stat band ---------- */
.stat-band { background: var(--navy-900); border-radius: 22px; color: #fff; padding: 46px; display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 26px; text-align: center; }
.stat-band .stat__num { color: #fff; font-size: 2rem; }
.stat-band .stat__label { color: #9DB0D4; }

/* ---------- footer ---------- */
.footer { background: var(--navy-900); color: #B9C6DF; margin-top: 40px; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 34px; padding: 56px 0 40px; }
@media (max-width: 900px) { .footer__grid { grid-template-columns: 1fr 1fr; } }
.footer__brand img { height: 66px; background: #fff; border-radius: 10px; padding: 6px 10px; }
.footer__brand p { font-size: .88rem; margin-top: 16px; max-width: 34ch; color: #8FA2C6; }
.footer h5 { color: #fff; font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 14px; }
.footer ul { list-style: none; display: flex; flex-direction: column; gap: 9px; font-size: .9rem; }
.footer ul a:hover { color: #fff; }
.footer__disclaimer { border-top: 1px solid rgba(255,255,255,.12); padding: 22px 0; font-size: .74rem; color: #7488AF; line-height: 1.7; }
.footer__bottom { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; padding: 18px 0 26px; font-size: .8rem; color: #8FA2C6; }
.footer__bottom a:hover { color: #fff; }

/* ---------- toast ---------- */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translate(-50%, 80px); z-index: 120;
  background: var(--navy-900); color: #fff; padding: 13px 22px; border-radius: 12px;
  font-weight: 600; font-size: .9rem; box-shadow: var(--shadow-lg); transition: transform .25s ease;
  display: flex; align-items: center; gap: 10px;
}
.toast.is-visible { transform: translate(-50%, 0); }
.toast::before { content: "\2713"; color: #6EE7A0; font-weight: 800; }

/* ---------- breadcrumbs ---------- */
.crumbs { display: flex; gap: 8px; font-size: .82rem; color: var(--ink-400); padding: 18px 0 0; flex-wrap: wrap; }
.crumbs a:hover { color: var(--red-600); }
.crumbs span::before { content: "/"; margin-right: 8px; color: var(--line); }

/* ---------- tables ---------- */
.table { width: 100%; border-collapse: collapse; font-size: .92rem; }
.table th { text-align: left; font-size: .74rem; text-transform: uppercase; letter-spacing: .07em; color: var(--ink-400); padding: 10px 14px; border-bottom: 2px solid var(--line); }
.table td { padding: 12px 14px; border-bottom: 1px solid var(--line); color: var(--ink-600); }
.table tr:hover td { background: var(--paper-2); }

/* ---------- misc ---------- */
.center { text-align: center; }
.mt-1 { margin-top: 10px; } .mt-2 { margin-top: 20px; } .mt-3 { margin-top: 34px; }
.note { font-size: .8rem; color: var(--ink-400); }
.demo-flag { background: var(--gold); color: #fff; font-size: .7rem; font-weight: 800; letter-spacing: .08em; padding: 3px 10px; border-radius: 999px; text-transform: uppercase; }

/* ---------- checkout modal ---------- */
.checkout-modal {
  position: absolute; inset: 8vh auto 8vh 50%; transform: translateX(-50%);
  width: min(560px, 92vw); max-height: 84vh; overflow-y: auto;
  background: #fff; border-radius: 18px; box-shadow: var(--shadow-lg);
}
.coa-modal__bar { position: sticky; top: 0; background: #fff; z-index: 1; }
.checkout-modal__body { padding: 22px 26px 28px; }
.co-summary { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px 18px; }
.co-summary__title { font-size: .74rem; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; color: var(--ink-400); margin-bottom: 8px; }
.co-line { display: flex; justify-content: space-between; gap: 14px; padding: 6px 0; font-size: .93rem; color: var(--ink-600); border-bottom: 1px dashed var(--line); }
.co-line:last-child { border-bottom: 0; }
.co-line small { color: var(--ink-400); }
.co-line--total { font-weight: 800; color: var(--navy-900); border-top: 2px solid var(--line); margin-top: 4px; padding-top: 10px; }
.checkout-modal .field { margin-top: 14px; }
.co-err { color: var(--red-600); font-size: .85rem; font-weight: 600; min-height: 1.2em; margin: 8px 0 2px; }
.co-success { text-align: center; padding: 26px 8px 10px; }
.co-success__icon { width: 64px; height: 64px; margin: 0 auto 14px; border-radius: 50%; background: var(--ok-100); color: var(--ok-600); display: flex; align-items: center; justify-content: center; font-size: 1.8rem; font-weight: 800; }
.co-success__no { display: inline-block; background: var(--navy-100); color: var(--navy-800); padding: 5px 14px; border-radius: 8px; font-size: .9rem; margin: 10px 0 14px; }