/* =========================================================
   MENOVA — Design tokens
   Hệ màu lấy cảm hứng từ men sống: rêu rừng, nghệ lên men,
   quả mọng ủ chua, và ánh sáng vi khuẩn có lợi.
   ========================================================= */
:root {
  /* Màu nền tối: Verdant, một màu rêu rừng, không phải đen */
  --verdant: #1b3b2f;
  --verdant-deep: #112620;
  --verdant-soft: #24493a;

  /* Màu nền sáng: Paper, trắng ngả rêu nhẹ, không phải cream */
  --paper: #f1f3ea;
  --paper-soft: #faf9f3;
  --paper-dim: #e4e7d9;

  /* Mực chữ: xanh đen đậm, không phải đen tuyệt đối */
  --ink: #16231c;
  --ink-soft: #3f4c43;

  /* Điểm nhấn */
  --amber: #cf8a2e;
  --amber-deep: #a86c1f;
  --plum: #2f6b7a;
  --plum-deep: #204d58;
  --lime: #a8c256;

  /* Trạng thái (không đổi theo bộ nhận diện, dùng cho lỗi/thành công) */
  --danger: #b3463a;
  --danger-deep: #8f362c;

  --line: rgba(22, 35, 28, 0.14);
  --line-on-dark: rgba(241, 243, 234, 0.18);

  --shadow-soft: 0 12px 32px rgba(17, 38, 32, 0.1);

  /* Chữ */
  --font-display: 'Be Vietnam Pro', system-ui, sans-serif;
  --font-serif: 'Source Serif 4', Georgia, serif;

  --fs-900: clamp(2.6rem, 2rem + 3vw, 4.6rem);
  --fs-800: clamp(2.1rem, 1.7rem + 1.8vw, 3.1rem);
  --fs-700: clamp(1.5rem, 1.3rem + 0.8vw, 1.9rem);
  --fs-600: 1.3rem;
  --fs-500: 1.125rem;
  --fs-400: 1rem;
  --fs-300: 0.9rem;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.25rem;
  --space-5: 3.5rem;
  --space-6: 5rem;
  --space-7: 7rem;

  --container: 1220px;
  --radius-sm: 6px;
  --radius-md: 10px;
}

/* =========================================================
   Reset
   ========================================================= */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-400);
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p, figure { margin: 0; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; font-size: inherit; }

:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 2px;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

@media (min-width: 900px) {
  .container { padding: 0 var(--space-5); }
}

.section { padding: var(--space-6) 0; }
.section--tight { padding: var(--space-5) 0; }
.section--dark { background: var(--verdant); color: var(--paper); }
.section--plum { background: var(--plum); color: var(--paper); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-size: var(--fs-300);
  color: var(--ink-soft);
  margin-bottom: var(--space-2);
}
.section--dark .eyebrow, .section--plum .eyebrow { color: rgba(241, 243, 234, 0.72); }
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--amber); flex-shrink: 0; }

h1, .h1 { font-size: var(--fs-900); font-weight: 700; line-height: 1.08; letter-spacing: -0.01em; }
h2, .h2 { font-size: var(--fs-800); font-weight: 700; line-height: 1.12; letter-spacing: -0.01em; }
h3, .h3 { font-size: var(--fs-700); font-weight: 600; line-height: 1.25; }
h4, .h4 { font-size: var(--fs-600); font-weight: 600; }

.lede { font-size: var(--fs-500); color: var(--ink-soft); max-width: 46ch; }
.section--dark .lede, .section--plum .lede { color: rgba(241, 243, 234, 0.78); }

.quote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--fs-700);
  line-height: 1.5;
}

/* =========================================================
   Buttons
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  padding: 0.9em 1.7em;
  font-size: var(--fs-400);
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1.5px solid transparent;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn--primary { background: var(--amber); color: var(--verdant-deep); }
.btn--primary:hover { background: var(--amber-deep); }

.btn--outline { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn--outline:hover { background: var(--ink); color: var(--paper); }

.btn--on-dark { border-color: var(--line-on-dark); color: var(--paper); background: transparent; }
.btn--on-dark:hover { border-color: var(--lime); color: var(--lime); }

.btn--ghost { background: transparent; color: var(--ink); padding: 0.4em 0; }
.btn--ghost:hover { color: var(--amber-deep); }

.btn--block { width: 100%; }
.btn--sm { padding: 0.6em 1.2em; font-size: var(--fs-300); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* =========================================================
   Header / Nav
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper-soft);
  border-bottom: 1px solid var(--line);
}
.site-header__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 0;
  gap: var(--space-3);
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.55em;
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
  color: var(--verdant);
}
.logo__mark { width: 34px; height: 34px; object-fit: contain; flex-shrink: 0; }
.footer-brand .logo__mark { width: 38px; height: 38px; }

.logo__full { height: 40px; width: auto; display: block; }
.logo--on-dark {
  display: inline-flex;
  background: var(--paper-soft);
  padding: 0.5em 0.9em;
  border-radius: var(--radius-sm);
}
.logo--on-dark .logo__full { height: 34px; }

.nav-main {
  display: none;
  gap: var(--space-4);
  font-weight: 500;
  font-size: var(--fs-400);
}
.nav-main a { position: relative; padding: 0.3em 0; color: var(--ink-soft); }
.nav-main a:hover, .nav-main a[aria-current="page"] { color: var(--verdant); }
.nav-main a[aria-current="page"]::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -4px;
  height: 2px;
  background: var(--amber);
}

.header-actions { display: flex; align-items: center; gap: var(--space-2); }

.cart-link {
  display: flex;
  align-items: center;
  gap: 0.4em;
  font-weight: 600;
  padding: 0.5em 0.9em;
  border: 1.5px solid var(--ink);
  border-radius: var(--radius-sm);
}
.cart-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.4em;
  height: 1.4em;
  padding: 0 0.3em;
  border-radius: 50%;
  background: var(--amber);
  color: var(--verdant-deep);
  font-size: 0.78rem;
  font-weight: 700;
}

.nav-toggle {
  display: inline-flex;
  background: none;
  border: none;
  padding: 0.3em;
  color: var(--verdant);
}

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 0.2em;
  padding: var(--space-2) 0 var(--space-3);
  border-top: 1px solid var(--line);
}
.nav-mobile.is-open { display: flex; }
.nav-mobile a { padding: 0.7em 0.2em; font-weight: 500; color: var(--ink-soft); }
.nav-mobile a[aria-current="page"] { color: var(--verdant); font-weight: 700; }

@media (min-width: 880px) {
  .nav-main { display: flex; }
  .nav-toggle { display: none; }
  .nav-mobile { display: none !important; }
}

/* =========================================================
   Hero — ảnh nhà máy thật làm nền, chữ phủ trên vùng tối bên trái
   ========================================================= */
.hero {
  position: relative;
  background:
    linear-gradient(100deg, rgba(15,33,27,0.94) 0%, rgba(15,33,27,0.82) 38%, rgba(15,33,27,0.42) 68%, rgba(15,33,27,0.08) 100%),
    url('/images/hero-bg.jpg') center / cover no-repeat;
  color: var(--paper);
  overflow: hidden;
  padding: var(--space-7) 0 var(--space-6);
  min-height: 560px;
  display: flex;
  align-items: center;
}
.hero__grid {
  display: grid;
  gap: var(--space-5);
  position: relative;
  z-index: 2;
  width: 100%;
}
.hero__copy { max-width: 42ch; }
.hero h1 { margin-bottom: var(--space-3); }
.hero .lede { color: rgba(241, 243, 234, 0.88); margin-bottom: var(--space-4); }
.hero__ctas { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-5); }
.hero__trust { display: flex; flex-wrap: wrap; gap: var(--space-4); font-size: var(--fs-300); color: rgba(241,243,234,0.78); }
.hero__trust strong { color: var(--paper); font-size: 1.3em; display: block; font-weight: 700; }

/* =========================================================
   Dải ảnh cơ sở hoạt động — ngay dưới hero
   ========================================================= */
.ops-strip { display: grid; grid-template-columns: repeat(2, 1fr); gap: 3px; }
@media (min-width: 760px) { .ops-strip { grid-template-columns: repeat(4, 1fr); } }
.ops-strip__item { position: relative; aspect-ratio: 4 / 3; overflow: hidden; }
.ops-strip__item img { width: 100%; height: 100%; object-fit: cover; display: block; }
.ops-strip__item span {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 0.6em 0.8em;
  font-size: var(--fs-300);
  font-weight: 600;
  color: #fff;
  background: linear-gradient(to top, rgba(15,33,27,0.85), transparent);
}

/* =========================================================
   Diagonal section divider — thay cho đường kẻ ngang thẳng
   ========================================================= */
.divider-wedge {
  position: relative;
  height: 64px;
  background: var(--verdant);
}
.divider-wedge::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--paper);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
}

/* =========================================================
   Insight / editorial statement
   ========================================================= */
.insight {
  max-width: 54ch;
}
.insight .quote { color: var(--verdant); }
.insight cite { display: block; margin-top: var(--space-3); font-size: var(--fs-300); color: var(--ink-soft); font-style: normal; }

/* =========================================================
   Product showcase — không dùng lưới thẻ giống nhau
   ========================================================= */
.showcase-list { display: flex; flex-direction: column; gap: var(--space-5); }
.showcase-item {
  display: grid;
  gap: var(--space-4);
  align-items: center;
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--line);
}
.showcase-item:last-child { border-bottom: none; padding-bottom: 0; }
@media (min-width: 860px) {
  .showcase-item { grid-template-columns: 220px 1fr; }
  .showcase-item:nth-child(even) .showcase-item__media { order: 2; }
}
.showcase-item__media {
  width: 190px;
  aspect-ratio: 3 / 4;
  height: auto;
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  background: var(--paper-dim);
  box-shadow: var(--shadow-soft);
}
.showcase-item__media img, .showcase-item__media svg { width: 100%; height: 100%; object-fit: contain; }
.showcase-item__media--amber { background: #f3e3c6; }
.showcase-item__media--plum { background: #d9e6e9; }
.showcase-item__media--lime { background: #e6ecd1; }

.showcase-item__category { font-size: var(--fs-300); color: var(--amber-deep); font-weight: 700; margin-bottom: 0.3em; }
.showcase-item__name { margin-bottom: 0.2em; }
.showcase-item__tagline { color: var(--ink-soft); margin-bottom: var(--space-2); }
.showcase-item__benefits { display: flex; flex-direction: column; gap: 0.5em; margin-bottom: var(--space-3); }
.showcase-item__benefits li { display: flex; gap: 0.6em; font-size: var(--fs-400); }
.showcase-item__benefits li::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--lime); margin-top: 0.55em; flex-shrink: 0; }
.showcase-item__footer { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; }
.price { font-weight: 700; font-size: var(--fs-600); }
.price-compare { text-decoration: line-through; color: var(--ink-soft); font-weight: 400; font-size: var(--fs-400); margin-right: 0.5em; }

/* =========================================================
   Science / lab panel
   ========================================================= */
.lab-panel {
  background: var(--verdant-deep);
  color: var(--paper);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  display: grid;
  gap: var(--space-5);
}
@media (min-width: 900px) {
  .lab-panel { grid-template-columns: 1fr 1fr; padding: var(--space-6); }
}
.lab-panel__stat { display: flex; flex-direction: column; gap: 0.3em; }
.lab-panel__stat-value { font-size: var(--fs-800); font-weight: 700; font-family: var(--font-display); color: var(--lime); }
.lab-panel__stat-label { font-size: var(--fs-300); color: rgba(241,243,234,0.7); }
.lab-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-4); align-content: start; }

.bar-compare { display: flex; flex-direction: column; gap: var(--space-3); }
.bar-row { display: grid; grid-template-columns: 1fr; gap: 0.4em; }
.bar-row__label { display: flex; justify-content: space-between; font-size: var(--fs-300); color: rgba(241,243,234,0.78); }
.bar-track { height: 10px; border-radius: 6px; background: rgba(241,243,234,0.12); overflow: hidden; }
.bar-fill { height: 100%; border-radius: 6px; }
.bar-fill--menova { background: var(--amber); }
.bar-fill--generic { background: rgba(241,243,234,0.35); }

/* =========================================================
   How it works — timeline thực sự (chỉ dùng số vì là quy trình 3 buoc)
   ========================================================= */
.steps { display: grid; gap: var(--space-4); counter-reset: step; }
@media (min-width: 760px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.step { counter-increment: step; position: relative; padding-top: var(--space-3); }
.step::before {
  content: counter(step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  background: var(--verdant);
  color: var(--paper);
  font-weight: 700;
  margin-bottom: var(--space-2);
}
.step h3 { margin-bottom: 0.4em; }
.step p { color: var(--ink-soft); }

.steps--plain .step { padding-top: 0; }
.steps--plain .step::before { display: none; }
.steps--plain .step { border-top: 3px solid var(--amber); padding-top: var(--space-2); }

/* =========================================================
   Testimonials — dạng biên tập, không phải thẻ sao đánh giá
   ========================================================= */
.testimonials { display: grid; gap: var(--space-5); }
@media (min-width: 860px) { .testimonials { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); } }
.testimonial { display: flex; flex-direction: column; gap: var(--space-3); }
.testimonial .quote { color: var(--paper); }
.testimonial__who { display: flex; align-items: center; gap: 0.7em; font-size: var(--fs-300); color: rgba(241,243,234,0.72); }
.testimonial__avatar { width: 2.4rem; height: 2.4rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; color: var(--verdant-deep); flex-shrink: 0; }

/* =========================================================
   Blog cards
   ========================================================= */
.post-grid { display: grid; gap: var(--space-5); }
@media (min-width: 760px) { .post-grid { grid-template-columns: repeat(3, 1fr); } }
.post-card { display: flex; flex-direction: column; gap: var(--space-2); }
.post-card__media { aspect-ratio: 4/3; border-radius: var(--radius-md); overflow: hidden; background: var(--paper-dim); display: flex; align-items: center; justify-content: center; }
.post-card__media img, .post-card__media svg { width: 60%; }
.post-card__meta { display: flex; gap: 0.8em; font-size: var(--fs-300); color: var(--ink-soft); }
.post-card__title { font-size: var(--fs-600); font-weight: 600; line-height: 1.35; }
.post-card:hover .post-card__title { color: var(--amber-deep); }

.post-body { max-width: 68ch; }
.post-body p + p { margin-top: var(--space-3); }
.post-body p { font-size: var(--fs-500); line-height: 1.75; }

/* =========================================================
   CTA band
   ========================================================= */
.cta-band {
  background: var(--amber);
  color: var(--verdant-deep);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}
.cta-band h2 { max-width: 20ch; }

/* =========================================================
   Footer
   ========================================================= */
.site-footer { background: var(--verdant-deep); color: rgba(241,243,234,0.82); padding: var(--space-6) 0 var(--space-4); }
.footer-grid { display: grid; gap: var(--space-5); margin-bottom: var(--space-5); }
@media (min-width: 760px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }
.footer-grid h4 { color: var(--paper); margin-bottom: var(--space-2); font-size: var(--fs-400); }
.footer-grid ul { display: flex; flex-direction: column; gap: 0.6em; }
.footer-grid a:hover { color: var(--lime); }
.footer-brand .logo { color: var(--paper); margin-bottom: var(--space-2); }
.footer-note { font-size: var(--fs-300); color: rgba(241,243,234,0.55); max-width: 46ch; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-2); padding-top: var(--space-4); border-top: 1px solid var(--line-on-dark); font-size: var(--fs-300); color: rgba(241,243,234,0.55); }
.footer-disclaimer { font-size: 0.8rem; color: rgba(241,243,234,0.45); margin-top: var(--space-3); max-width: 70ch; }

.social-row { display: flex; flex-direction: column; gap: 0.6em; margin-top: var(--space-3); }
.social-link { display: inline-flex; align-items: center; gap: 0.6em; color: rgba(241,243,234,0.75); font-size: var(--fs-300); }
.social-link:hover { color: var(--lime); }

/* =========================================================
   Floating contact buttons (Zalo, Facebook)
   ========================================================= */
.float-contact {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 60;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.float-contact__btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 8px 20px rgba(17, 38, 32, 0.28);
  transition: transform 0.18s ease;
}
.float-contact__btn:hover { transform: scale(1.08); }
.float-contact__btn--zalo { background: #0068ff; }
.float-contact__btn--fb { background: #1877f2; }

/* =========================================================
   Story grid (about page)
   ========================================================= */
.story-grid { display: grid; gap: var(--space-5); }
@media (min-width: 900px) { .story-grid { grid-template-columns: 0.8fr 1.2fr; align-items: center; } }
.story-grid__art { width: 220px; height: 220px; border-radius: 50%; background: var(--paper-dim); display: flex; align-items: center; justify-content: center; margin: 0 auto; }
.story-grid__art svg { width: 70%; }
.story-grid__art--photo { width: 100%; height: auto; max-width: 480px; border-radius: var(--radius-md); overflow: hidden; background: none; display: block; box-shadow: var(--shadow-soft); }
.story-grid__art--photo img { width: 100%; height: 100%; object-fit: cover; border-radius: var(--radius-md); }
.story-grid__copy p + p { margin-top: var(--space-2); }

/* =========================================================
   Photo banner (ảnh thật minh hoạ cơ sở sản xuất, quy trình)
   ========================================================= */
.photo-banner { margin: 0; border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-soft); }
.photo-banner img { width: 100%; height: auto; display: block; }
.photo-banner figcaption { padding: var(--space-2) var(--space-3); background: var(--verdant-deep); color: rgba(241,243,234,0.8); font-size: var(--fs-300); }

/* =========================================================
   Breadcrumb / page header (used on inner pages)
   ========================================================= */
.page-head { background: var(--verdant); color: var(--paper); padding: var(--space-5) 0; }
.page-head .lede { color: rgba(241,243,234,0.8); }
.breadcrumb { font-size: var(--fs-300); color: rgba(241,243,234,0.6); margin-bottom: var(--space-2); display: flex; gap: 0.5em; }
.breadcrumb a:hover { color: var(--lime); }

/* =========================================================
   Products grid (catalog page)
   ========================================================= */
.product-grid { display: grid; gap: var(--space-4); grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.product-card { display: flex; flex-direction: column; gap: var(--space-2); }
.product-card__media { aspect-ratio: 3 / 4; border-radius: var(--radius-md); overflow: hidden; display: flex; align-items: center; justify-content: center; margin-bottom: 0.4em; background: var(--paper-dim); box-shadow: var(--shadow-soft); }
.product-card__media img, .product-card__media svg { width: 100%; height: 100%; object-fit: contain; }
.product-card__category { font-size: var(--fs-300); color: var(--amber-deep); font-weight: 700; }
.product-card__name { font-size: var(--fs-600); font-weight: 600; }
.product-card__tagline { color: var(--ink-soft); font-size: var(--fs-300); }
.product-card__footer { display: flex; align-items: center; justify-content: space-between; margin-top: auto; }

.filter-row { display: flex; flex-wrap: wrap; gap: 0.6em; margin-bottom: var(--space-4); }
.filter-chip {
  padding: 0.5em 1.1em;
  border: 1.5px solid var(--line);
  border-radius: 999px;
  font-size: var(--fs-300);
  font-weight: 600;
  color: var(--ink-soft);
}
.filter-chip.is-active { background: var(--verdant); color: var(--paper); border-color: var(--verdant); }
.filter-chip:hover { border-color: var(--verdant); color: var(--verdant); }

/* =========================================================
   Product detail
   ========================================================= */
.product-detail { display: grid; gap: var(--space-6); }
@media (min-width: 900px) { .product-detail { grid-template-columns: 1fr 1fr; align-items: start; } }
.product-detail__media {
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 420px;
  margin: 0 auto;
  background: var(--paper-dim);
  box-shadow: var(--shadow-soft);
}
.product-detail__media img, .product-detail__media svg { width: 100%; height: auto; max-height: 560px; object-fit: contain; display: block; }

.product-thumbs { display: flex; gap: 0.6em; justify-content: center; margin-top: var(--space-2); flex-wrap: wrap; max-width: 420px; margin-left: auto; margin-right: auto; }
.product-thumb {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 2px solid transparent;
  padding: 0;
  background: var(--paper-dim);
  cursor: pointer;
  flex-shrink: 0;
}
.product-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.product-thumb.is-active { border-color: var(--verdant); }
.product-thumb:hover { border-color: var(--amber); }
.product-detail__cfu { display: inline-block; font-size: var(--fs-300); font-weight: 700; color: var(--verdant); background: var(--paper-dim); padding: 0.4em 0.9em; border-radius: 999px; margin-bottom: var(--space-2); }
.product-detail__price { display: flex; align-items: baseline; gap: 0.6em; margin: var(--space-2) 0 var(--space-3); }
.product-detail__price .price { font-size: var(--fs-700); }
.strain-list { display: flex; flex-direction: column; gap: 0.5em; margin: var(--space-2) 0 var(--space-4); padding: 0; list-style: none; counter-reset: strain; }
.strain-list li { display: flex; gap: 0.8em; counter-increment: strain; font-size: var(--fs-400); }
.strain-list li::before {
  content: counter(strain);
  flex-shrink: 0;
  width: 1.6em; height: 1.6em;
  border-radius: 50%;
  background: var(--paper-dim);
  color: var(--verdant);
  font-size: 0.78em;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.qty-row { display: flex; align-items: center; gap: var(--space-3); margin-bottom: var(--space-3); }
.qty-stepper { display: inline-flex; align-items: center; border: 1.5px solid var(--ink); border-radius: var(--radius-sm); }
.qty-stepper button { background: none; border: none; width: 2.6em; height: 2.6em; font-size: 1.1rem; font-weight: 700; }
.qty-stepper input { width: 2.6em; height: 2.6em; border: none; text-align: center; font-size: 1rem; font-weight: 600; background: transparent; }
.product-tabs { margin-top: var(--space-4); }
.product-tabs__panel { padding-top: var(--space-2); color: var(--ink-soft); }
.product-tabs__panel + .product-tabs__panel { margin-top: var(--space-4); padding-top: var(--space-3); border-top: 1px solid var(--line); }

.usage-list { margin: 0; }
.usage-list dt { font-weight: 600; color: var(--ink); margin-top: var(--space-2); }
.usage-list dt:first-child { margin-top: 0; }
.usage-list dd { margin: 0.3em 0 0; color: var(--ink-soft); }

/* =========================================================
   Cart page
   ========================================================= */
.cart-layout { display: grid; gap: var(--space-5); }
@media (min-width: 900px) { .cart-layout { grid-template-columns: 1.6fr 1fr; align-items: start; } }
.cart-row { display: grid; grid-template-columns: 60px 1fr auto auto; gap: var(--space-3); align-items: center; padding: var(--space-3) 0; border-bottom: 1px solid var(--line); }
.cart-row__media { width: 60px; height: 76px; border-radius: var(--radius-sm); overflow: hidden; background: var(--paper-dim); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.cart-row__media img, .cart-row__media svg { width: 100%; height: 100%; object-fit: cover; }
.cart-row__name { font-weight: 600; }
.cart-row__meta { font-size: var(--fs-300); color: var(--ink-soft); }
.cart-row__remove { font-size: var(--fs-300); color: var(--plum); background: none; border: none; padding: 0; }
.cart-summary { background: var(--paper-soft); border: 1px solid var(--line); border-radius: var(--radius-md); padding: var(--space-4); position: sticky; top: 100px; }
.summary-row { display: flex; justify-content: space-between; padding: 0.5em 0; font-size: var(--fs-400); }
.summary-row--total { font-weight: 700; font-size: var(--fs-600); border-top: 1px solid var(--line); margin-top: 0.4em; padding-top: 0.8em; }
.cart-empty { text-align: center; padding: var(--space-6) 0; }
.cart-empty svg { width: 160px; margin: 0 auto var(--space-3); }

.zalo-message-text {
  width: 100%;
  margin-top: var(--space-2);
  padding: 0.8em 1em;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper-soft);
  color: var(--ink);
  font-family: inherit;
  font-size: var(--fs-300);
  resize: vertical;
}

/* =========================================================
   Checkout
   ========================================================= */
.checkout-layout { display: grid; gap: var(--space-5); }
@media (min-width: 900px) { .checkout-layout { grid-template-columns: 1.4fr 1fr; align-items: start; } }
.form-field { margin-bottom: var(--space-3); }
.form-field label { display: block; font-size: var(--fs-300); font-weight: 600; margin-bottom: 0.4em; color: var(--ink-soft); }
.form-field input, .form-field textarea {
  width: 100%;
  padding: 0.8em 1em;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper-soft);
  color: var(--ink);
}
.form-field input:focus, .form-field textarea:focus { border-color: var(--verdant); outline: none; }
.form-row { display: grid; gap: var(--space-3); }
@media (min-width: 560px) { .form-row--2 { grid-template-columns: 1fr 1fr; } }

.payment-options { display: flex; flex-direction: column; gap: 0.7em; margin-bottom: var(--space-4); }
.payment-option {
  display: flex;
  align-items: center;
  gap: 0.9em;
  padding: 1em 1.1em;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.payment-option:has(input:checked) { border-color: var(--verdant); background: var(--paper-dim); }
.payment-option input { accent-color: var(--verdant); }
.payment-option__label { font-weight: 600; }
.payment-option__hint { font-size: var(--fs-300); color: var(--ink-soft); }

.form-error { color: var(--plum-deep); font-size: var(--fs-300); margin-top: 0.4em; min-height: 1.2em; }
.form-status { padding: var(--space-3); border-radius: var(--radius-sm); margin-bottom: var(--space-3); font-size: var(--fs-400); }
.form-status--error { background: #fbe9ec; color: var(--plum-deep); }
.form-status--success { background: #eaf1e2; color: var(--verdant); }

/* =========================================================
   Order success
   ========================================================= */
.order-result { text-align: center; max-width: 52ch; margin: 0 auto; }
.order-result__icon { width: 96px; height: 96px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto var(--space-3); }
.order-result__code { display: inline-block; font-weight: 700; font-size: var(--fs-600); background: var(--paper-dim); padding: 0.4em 1em; border-radius: var(--radius-sm); margin: var(--space-2) 0 var(--space-4); }

/* =========================================================
   Contact
   ========================================================= */
.contact-layout { display: grid; gap: var(--space-5); }
@media (min-width: 900px) { .contact-layout { grid-template-columns: 1fr 1fr; } }
.contact-info ul { display: flex; flex-direction: column; gap: var(--space-3); margin-top: var(--space-3); }
.contact-info li { display: flex; gap: 1em; }
.contact-info strong { display: block; }
.contact-info span { color: var(--ink-soft); font-size: var(--fs-400); }

/* =========================================================
   404
   ========================================================= */
.error-page { text-align: center; padding: var(--space-7) 0; }
.error-page__code { font-size: clamp(5rem, 4rem + 6vw, 9rem); font-weight: 800; color: var(--verdant); line-height: 1; }

/* =========================================================
   Utility
   ========================================================= */
.mt-0 { margin-top: 0 !important; }
.center { text-align: center; margin-left: auto; margin-right: auto; }
.stack-head { margin-bottom: var(--space-5); }
.flex-between { display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); flex-wrap: wrap; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }