/* Motherland – Bio Corner. Bảng màu: kem #F7F3E8 · xanh #244B36 · xanh đậm #16321F · vàng đất #C9A35B · chữ #2C332C */
:root {
  --kem: #F7F3E8;
  --kem-2: #EFE8D6;
  --trang: #FFFDF8;
  --xanh: #244B36;
  --xanh-dam: #16321F;
  --xanh-nhat: #E3EBE2;
  --vang: #C9A35B;
  --vang-dam: #8A6A2A;
  --chu: #2C332C;
  --chu-phu: #5D655C;
  --vien: #DDD4BF;
  --do: #A33A2A;
  --serif: "Lora", Georgia, "Times New Roman", serif;
  --sans: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --r: 14px;
  --r-sm: 10px;
  --wrap: 1180px;
  --header-h: 68px;
  --mbar-h: 0px;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--kem); color: var(--chu);
  font: 400 16px/1.6 var(--sans);
  padding-bottom: var(--mbar-h);
  overflow-x: hidden;
}
body.khoa-cuon { overflow: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--xanh); }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
h1, h2, h3 { font-family: var(--serif); color: var(--xanh-dam); line-height: 1.2; margin: 0 0 .5em; font-weight: 600; }
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); letter-spacing: -.01em; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.muted { color: var(--chu-phu); }
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 16px; }
@media (min-width: 768px) { .wrap { padding: 0 28px; } }
:focus-visible { outline: 3px solid var(--vang); outline-offset: 2px; }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--xanh-dam); color: #fff; padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }
.eyebrow { font-size: .78rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--vang-dam); margin-bottom: .6em; }

/* Nút */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 22px; border-radius: 999px; border: 1.5px solid transparent;
  font-weight: 600; font-size: .98rem; text-decoration: none; text-align: center;
  transition: background .2s, color .2s, border-color .2s, transform .1s;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--xanh); color: #fff; }
.btn--primary:hover { background: var(--xanh-dam); }
.btn--gold { background: var(--vang); color: var(--xanh-dam); }
.btn--gold:hover { background: #B8914A; }
.btn--ghost { background: transparent; border-color: var(--xanh); color: var(--xanh); }
.btn--ghost:hover { background: var(--xanh-nhat); }
.btn--light { background: var(--trang); color: var(--xanh-dam); }
.btn--sm { min-height: 40px; padding: 0 16px; font-size: .9rem; }
.btn--block { width: 100%; }
.btn[disabled], .btn[aria-disabled="true"] { opacity: .55; cursor: not-allowed; }
.link-btn { background: none; border: 0; padding: 6px 0; color: var(--xanh); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; }
.link-btn--light { color: #E9E2CF; font-weight: 400; text-decoration: none; }
.link-btn--light:hover { text-decoration: underline; }
.icon-btn { width: 44px; height: 44px; border-radius: 50%; border: 0; background: transparent; display: inline-grid; place-items: center; position: relative; color: var(--xanh-dam); }
.icon-btn:hover { background: var(--kem-2); }
.icon-btn svg, .search svg, .mbar__icon svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* Header */
.header { position: sticky; top: 0; z-index: 40; background: rgba(247,243,232,.96); backdrop-filter: blur(8px); border-bottom: 1px solid var(--vien); }
.header__in { display: flex; align-items: center; gap: 16px; height: var(--header-h); }
.logo img { width: 80px; height: auto; }
.nav { display: none; gap: 26px; margin-left: 12px; }
.nav a { text-decoration: none; color: var(--chu); font-weight: 500; font-size: .95rem; padding: 6px 0; }
.nav a:hover { color: var(--xanh); text-decoration: underline; text-underline-offset: 6px; text-decoration-color: var(--vang); }
.header__tools { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.search { display: none; align-items: center; gap: 8px; background: var(--trang); border: 1px solid var(--vien); border-radius: 999px; padding: 0 14px; height: 42px; color: var(--chu-phu); }
.search input { border: 0; background: transparent; outline: none; width: 170px; color: var(--chu); }
.search:focus-within { border-color: var(--xanh); }
.badge { position: absolute; top: 3px; right: 1px; min-width: 20px; height: 20px; padding: 0 5px; border-radius: 10px; background: var(--vang); color: var(--xanh-dam); font-size: .72rem; font-weight: 700; display: grid; place-items: center; }
.badge.nay { animation: nay .4s; }
@keyframes nay { 50% { transform: scale(1.35); } }
.header__cta { display: none; margin-left: 6px; }
@media (min-width: 1000px) {
  .nav { display: flex; }
  .search { display: inline-flex; }
  #nut-tim-mobile, .menu-btn { display: none; }
  .header__cta { display: inline-flex; }
}
@media (max-width: 999px) {
  .nav.mo { display: flex; flex-direction: column; gap: 0; position: absolute; top: var(--header-h); left: 0; right: 0; background: var(--kem); border-bottom: 1px solid var(--vien); padding: 8px 16px 16px; margin: 0; }
  .nav.mo a { padding: 14px 4px; border-bottom: 1px solid var(--kem-2); font-size: 1.05rem; }
  .header.tim-mo .search { display: inline-flex; position: absolute; left: 12px; right: 12px; top: calc(var(--header-h) + 8px); height: 48px; box-shadow: 0 8px 20px rgba(22,50,31,.12); }
  .header.tim-mo .search input { width: 100%; }
}

/* Hero */
.hero { background: var(--xanh-dam); color: #EEF2EA; overflow: hidden; }
.hero__in { display: grid; gap: 24px; padding-top: 28px; padding-bottom: 28px; align-items: center; }
.hero__in > *, .pd > *, .co-grid > *, .about > *, .faq-wrap > * { min-width: 0; }
.hero h1 { color: #fff; margin-bottom: .35em; }
.hero .eyebrow { color: var(--vang); }
.hero__lead { font-size: 1.05rem; color: #D9E2D6; max-width: 34em; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 20px 0 18px; }
.hero__actions .btn--primary { background: var(--vang); color: var(--xanh-dam); }
.hero__actions .btn--primary:hover { background: #D6B36C; }
.hero__actions .btn--ghost { border-color: #9DB39F; color: #fff; }
.hero__actions .btn--ghost:hover { background: rgba(255,255,255,.08); }
.hero__facts { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; font-size: .86rem; color: #C9D4C6; }
.hero__facts li { display: inline-flex; align-items: center; gap: 4px; padding: 4px 12px; border: 1px solid rgba(201,163,91,.45); border-radius: 999px; }
@media (max-width: 599px) {
  .hero h1 { font-size: 2rem; }
  .hero__lead { font-size: 1rem; }
  .hero__actions { flex-wrap: nowrap; margin: 16px 0 14px; }
  .hero__actions .btn { flex: 1 1 0; padding: 0 10px; font-size: .92rem; }
  .hero__img img { aspect-ratio: 4 / 3; }
}
.hero__facts strong { color: #fff; }
.hero__img { margin: 0 -16px; }
.hero__img img { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; object-position: 55% 70%; }
@media (min-width: 900px) {
  .hero__in { grid-template-columns: 1fr 1.15fr; padding-top: 44px; padding-bottom: 44px; gap: 36px; }
  .hero__img { margin: 0; }
  .hero__img img { border-radius: var(--r); aspect-ratio: 5 / 4; }
}

/* Section */
.section { padding: 56px 0; }
.section--tight { padding: 36px 0 44px; }
.section--cream { background: var(--trang); border-top: 1px solid var(--vien); border-bottom: 1px solid var(--vien); }
.section--green { background: var(--xanh); color: #E9EFE6; }
.section--green h2, .section--green h3 { color: #fff; }
.section__head { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 8px 24px; margin-bottom: 22px; }
.section__head h2 { margin-bottom: .2em; }
.section__head p { margin: 0; }
@media (min-width: 768px) { .section { padding: 80px 0; } .section--tight { padding: 48px 0 56px; } }

/* Nhu cầu */
.needs { display: grid; gap: 14px; }
@media (min-width: 720px) { .needs { grid-template-columns: repeat(3, 1fr); gap: 20px; } }
.need { display: grid; grid-template-columns: 112px 1fr; gap: 14px; align-items: center; background: var(--trang); border: 1px solid var(--vien); border-radius: var(--r); padding: 10px; text-align: left; transition: border-color .2s; }
.need:hover { border-color: var(--xanh); }
.need img { width: 112px; height: 96px; object-fit: cover; border-radius: var(--r-sm); }
.need h3 { margin: 0 0 4px; font-size: 1.12rem; }
.need p { margin: 0 0 6px; font-size: .9rem; color: var(--chu-phu); }
.need span { font-weight: 600; color: var(--xanh); font-size: .9rem; }
@media (min-width: 720px) {
  .need { grid-template-columns: 1fr; padding: 0; overflow: hidden; align-items: start; align-content: start; }
  .need img { width: 100%; height: auto; aspect-ratio: 1; border-radius: 0; }
  .need > div { padding: 4px 18px 18px; }
}

/* Bộ lọc */
.filters { display: flex; flex-direction: column; gap: 10px; margin-bottom: 8px; }
.chips { display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; padding-bottom: 2px; margin: 0 -16px; padding-left: 16px; padding-right: 16px; }
.chips::-webkit-scrollbar { display: none; }
@media (min-width: 768px) { .chips { margin: 0; padding-left: 0; padding-right: 0; flex-wrap: wrap; } }
.chip { flex: none; min-height: 42px; padding: 0 16px; border-radius: 999px; border: 1px solid var(--vien); background: var(--kem); font-weight: 500; font-size: .92rem; color: var(--chu); }
.chip[aria-checked="true"], .chip[aria-pressed="true"] { background: var(--xanh); border-color: var(--xanh); color: #fff; }
.chips--small .chip { min-height: 42px; font-size: .86rem; padding: 0 14px; }
.chips__label { flex: none; align-self: center; font-size: .86rem; color: var(--chu-phu); margin-right: 2px; }
.result-note { font-size: .9rem; color: var(--chu-phu); min-height: 1.4em; margin: 6px 0 14px; }

/* Lưới sản phẩm */
.group { margin-bottom: 36px; }
.group__head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 14px; border-bottom: 1px solid var(--vien); padding-bottom: 8px; }
.group__head h3 { margin: 0; font-size: 1.35rem; }
.group__head p { margin: 0; color: var(--chu-phu); font-size: .9rem; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
@media (min-width: 720px) { .grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; } }
@media (min-width: 1080px) { .grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; } }
.card { background: transparent; border: 0; display: flex; flex-direction: column; }
.card__img { position: relative; display: block; width: 100%; padding: 0; border: 0; background: var(--kem-2); border-radius: var(--r); overflow: hidden; }
.card__img img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; transition: transform .35s; }
.card:hover .card__img img { transform: scale(1.03); }
.card__quick { position: absolute; left: 50%; bottom: 10px; transform: translateX(-50%); background: rgba(255,253,248,.94); color: var(--xanh-dam); font-size: .8rem; font-weight: 600; padding: 6px 12px; border-radius: 999px; white-space: nowrap; }
.card__body { padding: 14px 2px 4px; display: flex; flex-direction: column; flex: 1; text-align: center; align-items: center; }
.card__body .card__meta { justify-content: center; }
.card__body .btn { align-self: stretch; }
.card__name { font-family: var(--serif); font-size: 1.02rem; font-weight: 600; color: var(--xanh-dam); line-height: 1.3; margin: 0 0 4px; }
.card__name button { all: unset; cursor: pointer; }
.card__name button:hover { text-decoration: underline; }
.card__desc { font-size: .86rem; color: var(--chu-phu); margin: 0 0 8px; line-height: 1.45; }
.card__meta { margin-top: auto; display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px 8px; margin-bottom: 10px; }
.price { font-weight: 700; font-size: 1.08rem; color: var(--xanh-dam); }
.weight { font-size: .82rem; color: var(--chu-phu); }
.certs { display: flex; gap: 4px; flex-wrap: wrap; margin-bottom: 8px; }
.cert-badge { font-size: .68rem; font-weight: 700; letter-spacing: .04em; padding: 2px 7px; border-radius: 6px; background: var(--xanh-nhat); color: var(--xanh); }
.card .btn { min-height: 44px; font-size: .9rem; padding: 0 12px; }
@media (max-width: 420px) { .card__body { padding: 10px; } .card__desc { display: none; } .card__quick { display: none; } }
.empty-state { text-align: center; padding: 40px 16px; background: var(--kem); border-radius: var(--r); border: 1px dashed var(--vien); }

.quiz-cta { margin-top: 12px; background: var(--xanh-nhat); border-radius: var(--r); padding: 22px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px; }
.quiz-cta h3 { margin: 0 0 4px; }
.quiz-cta p { margin: 0; color: var(--chu-phu); }

/* Về Motherland */
.about { display: grid; gap: 28px; align-items: center; margin-bottom: 40px; }
@media (min-width: 900px) { .about { grid-template-columns: 1fr 1fr; gap: 56px; } }
.about__img { margin: 0; }
.about__img img { border-radius: var(--r); aspect-ratio: 3 / 2; object-fit: cover; width: 100%; }
.ticks { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 12px; }
.ticks li { padding-left: 28px; position: relative; }
.ticks li::before { content: ""; position: absolute; left: 0; top: .35em; width: 16px; height: 16px; border-radius: 50%; background: var(--vang); -webkit-mask: radial-gradient(circle, #000 45%, transparent 46%); mask: radial-gradient(circle, #000 45%, transparent 46%); }
.cert { background: var(--trang); border: 1px solid var(--vien); border-radius: var(--r); padding: 20px; }
.cert__head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 4px 20px; margin-bottom: 10px; }
.cert__head h3 { margin: 0; }
.cert__head p { margin: 0; font-size: .88rem; }
.table-scroll { overflow-x: auto; }
.cert__table { width: 100%; border-collapse: collapse; font-size: .92rem; min-width: 420px; }
.cert__table th, .cert__table td { padding: 10px 8px; border-bottom: 1px solid var(--kem-2); text-align: center; }
.cert__table th:first-child, .cert__table td:first-child { text-align: left; }
.cert__table thead th { font-size: .8rem; letter-spacing: .06em; color: var(--chu-phu); font-weight: 600; }
.co { color: var(--xanh); font-weight: 700; }
.khong { color: #A8A08C; }

/* Thưởng thức */
.enjoy { display: grid; gap: 16px; }
@media (min-width: 640px) { .enjoy { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1080px) { .enjoy { grid-template-columns: repeat(4, 1fr); } }
.tip { background: var(--xanh-dam); border-radius: var(--r); overflow: hidden; display: flex; flex-direction: column; }
.tip img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
@media (max-width: 639px) { .tip img { aspect-ratio: 4 / 3; } }
.tip__body { padding: 16px 18px 18px; display: flex; flex-direction: column; flex: 1; }
.tip h3 { margin-bottom: 6px; }
.tip p { font-size: .92rem; color: #CFDACB; flex: 1; }
.tip .btn { align-self: flex-start; }

/* Hỏi đáp */
.faq-wrap { display: grid; gap: 28px; }
@media (min-width: 900px) { .faq-wrap { grid-template-columns: 1fr 1.6fr; gap: 56px; } }
.contact-stack { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.faq details { border-bottom: 1px solid var(--vien); }
.faq summary { list-style: none; cursor: pointer; padding: 18px 40px 18px 0; position: relative; font-weight: 600; font-size: 1.02rem; color: var(--xanh-dam); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 6px; top: 50%; transform: translateY(-50%); font-size: 1.5rem; font-weight: 400; color: var(--vang-dam); }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 0 0 18px; color: var(--chu-phu); }

/* Footer */
.footer { background: var(--xanh-dam); color: #C9D4C6; padding: 48px 0 20px; font-size: .94rem; }
.footer__in { display: grid; gap: 28px; }
@media (min-width: 768px) { .footer__in { grid-template-columns: 1.5fr 1fr 1fr 1.2fr; } }
.footer img { width: 100px; height: auto; margin-bottom: 12px; }
.footer__slogan { font-family: var(--serif); color: #fff; font-size: 1.15rem; margin-bottom: 6px; }
.footer h3 { color: #fff; font-family: var(--sans); font-size: .82rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 12px; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 4px; }
.footer a { color: #E9E2CF; text-decoration: none; display: inline-block; padding: 4px 0; }
.footer a:hover { text-decoration: underline; }
.footer__bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 32px; padding-top: 16px; font-size: .84rem; }

/* Thanh mua trên điện thoại */
.mbar { display: none; }
@media (max-width: 899px) {
  :root { --mbar-h: calc(68px + env(safe-area-inset-bottom)); }
  .mbar { display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 35; gap: 6px; align-items: center; padding: 10px 12px calc(10px + env(safe-area-inset-bottom)); background: var(--trang); border-top: 1px solid var(--vien); }
  .mbar__icon { width: 56px; height: 48px; display: grid; place-items: center; text-decoration: none; color: var(--xanh-dam); font-size: .7rem; font-weight: 600; line-height: 1; gap: 2px; border-radius: 10px; }
  .mbar__icon:hover { background: var(--kem-2); }
  .mbar__cart { flex: 1; min-height: 48px; white-space: nowrap; padding: 0 12px; }
  .toast { bottom: calc(var(--mbar-h) + 10px) !important; }
}

/* Thông báo */
.toast { position: fixed; z-index: 70; left: 50%; bottom: 24px; transform: translateX(-50%); width: min(440px, calc(100% - 24px)); background: var(--xanh-dam); color: #fff; border-radius: var(--r); padding: 14px 16px; display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; box-shadow: 0 10px 30px rgba(22,50,31,.25); }
.toast p { margin: 0; flex: 1 1 200px; }
.toast .btn { min-height: 40px; font-size: .88rem; padding: 0 14px; }
.toast .btn--ghost { border-color: #9DB39F; color: #fff; }

/* Lớp phủ, drawer, modal */
.overlay { position: fixed; inset: 0; background: rgba(22,50,31,.45); z-index: 50; }
.drawer { position: fixed; z-index: 60; top: 0; right: 0; height: 100%; height: 100dvh; width: min(440px, 100%); background: var(--kem); display: flex; flex-direction: column; transform: translateX(100%); transition: transform .28s ease; visibility: hidden; }
.drawer.mo { transform: none; visibility: visible; }
.drawer__head { display: flex; align-items: center; justify-content: space-between; padding: 12px 12px 12px 20px; border-bottom: 1px solid var(--vien); }
.drawer__head h2 { margin: 0; font-size: 1.4rem; }
.drawer__body { flex: 1; overflow-y: auto; padding: 8px 20px 20px; }
.drawer__foot { border-top: 1px solid var(--vien); padding: 16px 20px calc(16px + env(safe-area-inset-bottom)); background: var(--trang); }
.line { display: grid; grid-template-columns: 72px 1fr; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--kem-2); }
.line img { width: 72px; height: 72px; object-fit: cover; border-radius: var(--r-sm); }
.line__name { font-weight: 600; font-size: .95rem; color: var(--xanh-dam); margin: 0 0 2px; line-height: 1.35; }
.line__sub { font-size: .84rem; color: var(--chu-phu); margin: 0 0 8px; }
.line__row { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.qty { display: inline-flex; align-items: center; border: 1px solid var(--vien); border-radius: 999px; background: var(--trang); }
.qty button { width: 40px; height: 40px; border: 0; background: none; font-size: 1.15rem; color: var(--xanh-dam); border-radius: 50%; }
.qty button:hover { background: var(--kem-2); }
.qty input { width: 40px; text-align: center; border: 0; background: transparent; font-weight: 600; -moz-appearance: textfield; }
.qty input::-webkit-outer-spin-button, .qty input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.remove { background: none; border: 0; color: var(--chu-phu); font-size: .84rem; text-decoration: underline; padding: 8px 0; }
.remove:hover { color: var(--do); }
.sum-row { display: flex; justify-content: space-between; gap: 10px; margin-bottom: 6px; font-size: .95rem; }
.sum-row--total { font-weight: 700; font-size: 1.1rem; color: var(--xanh-dam); border-top: 1px solid var(--vien); padding-top: 10px; margin-top: 8px; }
.note { font-size: .84rem; color: var(--chu-phu); margin: 8px 0 12px; }
.upsell { margin-top: 16px; background: var(--trang); border: 1px solid var(--vien); border-radius: var(--r); padding: 12px; display: grid; grid-template-columns: 64px 1fr; gap: 12px; align-items: center; }
.upsell img { width: 64px; height: 64px; border-radius: var(--r-sm); object-fit: cover; }
.upsell p { margin: 0 0 6px; font-size: .85rem; color: var(--chu-phu); }
.upsell strong { display: block; color: var(--xanh-dam); font-size: .92rem; margin-bottom: 2px; }
.upsell .btn { min-height: 36px; font-size: .84rem; padding: 0 12px; }

.modal { border: 0; padding: 0; border-radius: var(--r); background: var(--kem); color: var(--chu); width: min(940px, calc(100% - 24px)); max-height: calc(100dvh - 24px); overflow: auto; }
.modal::backdrop { background: rgba(22,50,31,.5); }
.modal--sm { width: min(560px, calc(100% - 24px)); }
.modal__close { position: sticky; top: 8px; float: right; margin: 8px 8px 0 0; z-index: 2; background: var(--trang); }
.modal__inner { padding: 20px; }
@media (max-width: 640px) {
  .modal { width: 100%; max-width: 100%; max-height: 100dvh; height: 100dvh; margin: 0; border-radius: 0; }
}
.pd { display: grid; gap: 22px; }
@media (min-width: 760px) { .pd { grid-template-columns: 1fr 1fr; gap: 32px; } }
.gallery__main { border-radius: var(--r); overflow: hidden; background: var(--kem-2); }
.gallery__main img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.gallery__main img.rong { object-fit: contain; background: var(--xanh-dam); }
.gallery__thumbs { display: flex; gap: 8px; margin-top: 10px; }
.gallery__thumbs button { width: 64px; height: 64px; padding: 0; border: 2px solid transparent; border-radius: var(--r-sm); overflow: hidden; background: none; }
.gallery__thumbs button[aria-current="true"] { border-color: var(--xanh); }
.gallery__thumbs img { width: 100%; height: 100%; object-fit: cover; }
.pd h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); margin-bottom: 6px; }
.pd__price { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin: 10px 0 12px; }
.pd__price .price { font-size: 1.5rem; }
.pd__buy { display: grid; grid-template-columns: auto 1fr; gap: 10px; margin: 16px 0 8px; align-items: center; }
.pd__buy .btn--primary { grid-column: 1 / -1; }
@media (min-width: 480px) { .pd__buy { grid-template-columns: auto 1fr 1fr; } .pd__buy .btn--primary { grid-column: auto; } }
.pd h3 { font-family: var(--sans); font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; color: var(--vang-dam); margin: 22px 0 8px; }
.pd ul { padding-left: 1.1em; margin: 0; display: grid; gap: 6px; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0 0; }
.tag { font-size: .78rem; padding: 3px 10px; border-radius: 999px; border: 1px solid var(--vien); background: var(--trang); }
.pd__help { margin-top: 16px; font-size: .9rem; color: var(--chu-phu); }

/* Quiz */
.quiz h2 { margin-bottom: 4px; }
.quiz__step { font-size: .84rem; color: var(--chu-phu); margin-bottom: 14px; }
.quiz__opts { display: grid; gap: 10px; margin: 16px 0; }
.quiz__opt { text-align: left; border: 1.5px solid var(--vien); border-radius: var(--r); background: var(--trang); padding: 14px 16px; min-height: 56px; }
.quiz__opt:hover { border-color: var(--xanh); }
.quiz__opt strong { display: block; color: var(--xanh-dam); }
.quiz__opt span { font-size: .88rem; color: var(--chu-phu); }
.quiz__res { display: grid; gap: 12px; margin: 16px 0; }
.res { display: grid; grid-template-columns: 88px 1fr; gap: 14px; background: var(--trang); border: 1px solid var(--vien); border-radius: var(--r); padding: 10px; align-items: center; }
.res img { width: 88px; height: 88px; object-fit: cover; border-radius: var(--r-sm); }
.res p { margin: 0 0 6px; font-size: .88rem; color: var(--chu-phu); }
.res .actions { display: flex; flex-wrap: wrap; gap: 8px; }
.res .btn { min-height: 40px; font-size: .86rem; padding: 0 14px; }

/* Đặt hàng */
.checkout { position: fixed; inset: 0; z-index: 65; background: var(--kem); overflow-y: auto; }
.checkout__bar { position: sticky; top: 0; z-index: 2; background: var(--kem); border-bottom: 1px solid var(--vien); }
.checkout__bar .wrap { display: flex; align-items: center; gap: 12px; height: 60px; }
.checkout__bar h2 { margin: 0; font-size: 1.25rem; flex: 1; }
.steps { display: flex; gap: 6px; list-style: none; margin: 0; padding: 0; font-size: .8rem; color: var(--chu-phu); }
.steps li { padding: 4px 10px; border-radius: 999px; background: var(--kem-2); }
.steps li[aria-current="step"] { background: var(--xanh); color: #fff; }
@media (max-width: 520px) { .steps { display: none; } }
.co-grid { display: grid; gap: 20px; padding-top: 22px; padding-bottom: 40px; }
@media (min-width: 900px) { .co-grid { grid-template-columns: 1.3fr 1fr; gap: 36px; align-items: start; } .co-sum { position: sticky; top: 84px; } }
.panel { background: var(--trang); border: 1px solid var(--vien); border-radius: var(--r); padding: 20px; }
.panel h3 { margin-bottom: 12px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-weight: 600; font-size: .92rem; margin-bottom: 6px; color: var(--xanh-dam); }
.field label small { font-weight: 400; color: var(--chu-phu); }
.field input, .field textarea { width: 100%; min-height: 48px; border: 1.5px solid var(--vien); border-radius: var(--r-sm); background: #fff; padding: 10px 14px; font-size: 1rem; }
.field textarea { min-height: 84px; resize: vertical; }
.field input:focus, .field textarea:focus { border-color: var(--xanh); outline: none; box-shadow: 0 0 0 3px rgba(36,75,54,.15); }
.field.loi input, .field.loi textarea { border-color: var(--do); }
.field__err { color: var(--do); font-size: .85rem; margin: 6px 0 0; }
.check, .field label.check { display: grid; grid-template-columns: 22px 1fr; gap: 10px; align-items: start; font-size: .9rem; cursor: pointer; }
.check input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--xanh); }
.alert { border-radius: var(--r-sm); padding: 12px 14px; font-size: .92rem; margin-bottom: 14px; }
.alert--info { background: var(--xanh-nhat); color: var(--xanh-dam); }
.alert--warn { background: #F6EBD3; color: #5E4513; }
.alert--err { background: #F6DEDA; color: #6E2015; }
.review dl { display: grid; grid-template-columns: 110px 1fr; gap: 6px 12px; margin: 0 0 6px; font-size: .95rem; }
.review dt { color: var(--chu-phu); }
.review dd { margin: 0; word-break: break-word; }
.co-actions { display: flex; flex-direction: column; gap: 10px; margin-top: 18px; }
@media (min-width: 560px) { .co-actions { flex-direction: row-reverse; justify-content: flex-start; } }
.sum-lines { display: grid; gap: 10px; margin-bottom: 12px; }
.sum-line { display: grid; grid-template-columns: 52px 1fr auto; gap: 10px; align-items: center; font-size: .9rem; }
.sum-line img { width: 52px; height: 52px; border-radius: 8px; object-fit: cover; }
.sum-line small { display: block; color: var(--chu-phu); }
.zalo-box { margin-top: 16px; }
.zalo-box textarea { width: 100%; min-height: 180px; font-size: .86rem; border: 1px solid var(--vien); border-radius: var(--r-sm); padding: 10px; background: #fff; font-family: ui-monospace, Consolas, monospace; }
.zalo-steps { padding-left: 1.2em; margin: 8px 0 12px; display: grid; gap: 4px; font-size: .92rem; }
.done { text-align: center; max-width: 620px; margin: 0 auto; padding: 40px 0 60px; }
.done__icon { width: 64px; height: 64px; border-radius: 50%; background: var(--xanh); color: #fff; display: grid; place-items: center; margin: 0 auto 16px; font-size: 2rem; }
.done__code { display: inline-block; font-size: 1.4rem; font-weight: 700; letter-spacing: .06em; color: var(--xanh-dam); background: var(--trang); border: 1px dashed var(--vang); border-radius: var(--r-sm); padding: 8px 16px; margin: 6px 0 10px; }
.status-pill { display: inline-block; padding: 4px 12px; border-radius: 999px; background: #F6EBD3; color: #5E4513; font-weight: 600; font-size: .9rem; }
.done .panel { text-align: left; margin-top: 20px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}

/* ===== Bản 2: tab nhóm, chứng nhận, quà tặng, câu chuyện ===== */
.section__head--center { flex-direction: column; align-items: center; text-align: center; justify-content: center; margin-bottom: 26px; }
.section__head--center h2 { font-size: clamp(2rem, 4.6vw, 3.1rem); color: var(--xanh); margin-bottom: .25em; }
.section__head--center p { max-width: 40em; }

.tabs { display: flex; justify-content: center; gap: 8px 34px; flex-wrap: wrap; margin: 0 auto 30px; }
.tab { background: none; border: 0; padding: 10px 2px 12px; min-height: 44px; font-weight: 600; font-size: 1.02rem; color: var(--chu-phu); border-bottom: 2px solid var(--vien); position: relative; }
.tab:hover { color: var(--xanh); }
.tab[aria-selected="true"] { color: var(--xanh-dam); border-bottom-color: var(--xanh); }
@media (max-width: 640px) {
  .tabs { justify-content: flex-start; flex-wrap: nowrap; overflow-x: auto; gap: 22px; margin: 0 -16px 22px; padding: 0 16px; scrollbar-width: none; }
  .tabs::-webkit-scrollbar { display: none; }
  .tab { flex: none; font-size: .95rem; }
}
.group__lead { text-align: center; color: var(--chu-phu); margin: -12px 0 22px; font-size: .95rem; }
.grid { row-gap: 34px; }

/* Chứng nhận */
.badges { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; max-width: 860px; margin: 8px auto 40px; }
.badge-item { text-align: center; }
.badge-item__img { width: 148px; height: 148px; border-radius: 22px; overflow: hidden; display: block; margin: 0 auto 14px; background: var(--trang); border: 6px solid var(--trang); box-shadow: 0 0 0 1px var(--vien); }
.badge-item__img img { width: 100%; height: 100%; object-fit: cover; }
.badge-item h3 { margin: 0 0 4px; font-size: 1.1rem; }
.badge-item p { margin: 0; color: var(--chu-phu); font-size: .9rem; }
@media (max-width: 560px) { .badges { gap: 12px; } .badge-item__img { width: 96px; height: 96px; border-width: 4px; } .badge-item h3 { font-size: .95rem; } .badge-item p { font-size: .8rem; } }
.cert__xem { font-size: .85rem; font-style: italic; }

/* Quà tặng */
.gift { display: grid; gap: 28px; align-items: center; }
@media (min-width: 900px) { .gift { grid-template-columns: 1fr 1.05fr; gap: 56px; } }
.gift > * { min-width: 0; }
.gift__img { margin: 0; position: relative; }
.gift__img > img:first-child { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; border-radius: var(--r); }
.gift__cover { position: absolute; right: -10px; bottom: -14px; width: 40%; max-width: 210px; border-radius: 6px; box-shadow: 0 14px 30px rgba(22,50,31,.35); transform: rotate(3deg); }
@media (max-width: 899px) { .gift__cover { right: 8px; width: 34%; } }
.gift__form { margin-top: 18px; }
.gift__row { display: grid; gap: 0 14px; }
@media (min-width: 560px) { .gift__row { grid-template-columns: 1fr 1fr; } }
.gift__form .check span { font-weight: 400; color: var(--chu); }
#qua-ket-qua .alert { margin: 14px 0 0; }

/* Câu chuyện Về Motherland */
.story p { font-size: 1.03rem; }
.story__quote { font-family: var(--serif); font-style: italic; font-size: 1.25rem !important; color: var(--xanh); border-left: 3px solid var(--vang); padding-left: 16px; margin-top: 18px; }
/* Tiêu đề Quà tặng nằm 1 hàng trên máy tính */
@media (min-width: 900px) { .gift__text h2 { white-space: nowrap; font-size: clamp(1.4rem, 2.3vw, 1.95rem); } }

/* Khối thông tin sản phẩm (bản mới) */
.pd__intro { font-size: 1.05rem; margin: 1.25rem 0 .75rem; }
.pd__info { margin: 0 0 1.25rem; border-top: 1px solid rgba(0,0,0,.1); }
.pd__info > div { display: grid; grid-template-columns: 9.5rem 1fr; gap: .75rem; padding: .6rem 0; border-bottom: 1px solid rgba(0,0,0,.1); }
.pd__info dt { font-size: .78rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: #8a6a3b; padding-top: .15rem; }
.pd__info dd { margin: 0; }
@media (max-width: 520px) { .pd__info > div { grid-template-columns: 1fr; gap: .15rem; } }

/* Menu dang tab: muc dang mo */
.nav a[aria-current="page"] { color: var(--xanh); text-decoration: underline; text-underline-offset: 6px; text-decoration-color: var(--vang); }

/* Ten san pham: 1 dong khi du cho (chu tu nho lai chut), khong du thi chia 2 dong deu nhau */
.card { container-type: inline-size; }
.card__name { font-size: clamp(.875rem, calc(100cqi / 17.6), 1.02rem); text-wrap: balance; }

/* Qua tang: chi 1 anh bia ebook, hien tron khong cat */
.gift__img > img.gift__book { aspect-ratio: auto; object-fit: contain; max-width: 520px; display: block; margin: 0 auto; }

/* Ve Motherland: chu ky cuoi bai */
.story__sign { font-family: var(--serif); font-weight: 600; color: var(--xanh-dam); margin-top: 18px; }

/* Hero: logo + khau hieu */
.hero__logo { width: clamp(150px, 18vw, 220px); height: auto; margin: 0 0 14px; }
.hero__lead { font-family: var(--serif); font-size: clamp(1.1rem, 1.8vw, 1.35rem); color: var(--vang); letter-spacing: .01em; }
.hero h1 { text-wrap: balance; }
@media (min-width: 900px) { .hero h1 { white-space: nowrap; font-size: clamp(2.1rem, 3.5vw, 3.1rem); } }

/* Phi giao hang */
.ship-free { color: var(--xanh); }
.ship-hint { background: #FBF3DF; border-radius: 8px; padding: 8px 10px; }

/* Thanh toan: QR noi bat, COD phu */
.pay { margin-top: 18px; }
.pay h4 { margin: 0 0 10px; font-size: 1rem; }
.pay__qr { all: unset; box-sizing: border-box; cursor: pointer; display: flex; gap: 12px; align-items: flex-start; width: 100%; padding: 14px 16px; border: 2px solid #D9DED3; border-radius: 14px; background: #fff; }
.pay__qr.chon { border-color: var(--xanh); background: #F1F6EE; box-shadow: 0 6px 18px rgba(36,75,54,.12); }
.pay__qr:focus-visible { outline: 3px solid var(--vang); outline-offset: 2px; }
.pay__qr small { display: block; color: var(--chu); font-size: .88rem; margin-top: 4px; }
.pay__dot { flex: none; width: 20px; height: 20px; border-radius: 50%; border: 2px solid var(--xanh); margin-top: 2px; }
.pay__qr.chon .pay__dot { background: radial-gradient(circle, var(--xanh) 45%, transparent 50%); }
.pay__tag { font-style: normal; font-size: .72rem; font-weight: 700; background: var(--vang); color: var(--xanh-dam); padding: 2px 8px; border-radius: 999px; margin-left: 6px; vertical-align: middle; }
.pay__cod { display: inline-block; margin-top: 10px; font-size: .88rem; color: #6b7368; }
.qr-pay { text-align: center; margin: 18px auto; max-width: 460px; border: 2px solid var(--xanh); }
.qr-pay__img { width: min(280px, 100%); margin: 12px auto; }
.qr-pay__img canvas { width: 100%; height: auto; display: block; border-radius: 10px; }
.qr-pay__info { text-align: left; display: grid; gap: 6px; margin: 10px 0 4px; font-size: .92rem; }
.qr-pay__info > div { display: flex; flex-wrap: wrap; gap: 4px 10px; align-items: baseline; border-bottom: 1px dashed #E2E5DC; padding: 4px 0; }
.qr-pay__info span { color: #6b7368; min-width: 7.5em; }
.qr-pay__info .link-btn { font-size: .85rem; margin-left: auto; }

/* Lien he: 4 the Zalo / Fanpage / Cong dong / Hotline */
.contact-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
@media (min-width: 900px) { .contact-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; } }
.contact-card { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 4px; padding: 22px 12px; border: 1px solid #E2E5DC; border-radius: var(--r); background: #fff; text-decoration: none; color: var(--chu); transition: transform .15s, box-shadow .15s, border-color .15s; }
.contact-card:hover { transform: translateY(-2px); border-color: var(--xanh); box-shadow: 0 10px 24px rgba(36,75,54,.12); }
.contact-card:focus-visible { outline: 3px solid var(--vang); outline-offset: 2px; }
.contact-card__icon { width: 48px; height: 48px; border-radius: 50%; display: grid; place-items: center; background: var(--xanh); color: #fff; font-weight: 800; font-size: 1.3rem; margin-bottom: 6px; }
.contact-card strong { color: var(--xanh-dam); font-size: 1.02rem; }
.contact-card span:last-child { font-size: .88rem; color: #6b7368; overflow-wrap: anywhere; }