:root {
  color-scheme: light;
  --page-ratio: 1.2933333333;
  --canvas: #ffffff;
  --text: #212529;
  --phone: #ed1b24;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-snap-type: y mandatory;
  background: var(--canvas);
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background: var(--canvas);
}

.skip-link {
  position: fixed;
  z-index: 10;
  top: 1rem;
  left: 1rem;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  color: #fff;
  background: #641b17;
  font: 600 0.875rem/1 system-ui, sans-serif;
  text-decoration: none;
  transform: translateY(-150vh);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.catalog {
  display: flex;
  flex-direction: column;
}

.design-page {
  display: grid;
  min-height: 100svh;
  place-items: center;
  scroll-snap-align: start;
  scroll-snap-stop: always;
}

.design-page img {
  display: block;
  width: min(100vw, calc(100svh * var(--page-ratio)), 1164px);
  height: auto;
  max-height: 100svh;
  object-fit: contain;
  user-select: none;
  -webkit-user-drag: none;
}

.contact-actions {
  position: fixed;
  z-index: 9999;
  right: 12px;
  bottom: 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-family: Montserrat, "Helvetica Neue", Helvetica, Arial, sans-serif;
}

.contact-cta {
  display: flex;
  width: 260px;
  height: 76px;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border: 1px solid rgba(99, 67, 55, 0.08);
  border-radius: 18px;
  color: var(--text);
  background: #fff;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
  text-decoration: none;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease;
}

.contact-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.16);
}

.contact-cta:focus-visible {
  outline: 3px solid rgba(100, 27, 23, 0.32);
  outline-offset: 3px;
}

.contact-icon {
  display: grid;
  width: 52px;
  height: 52px;
  flex: 0 0 52px;
  place-items: center;
  border: 1px solid rgba(99, 67, 55, 0.18);
  border-radius: 999px;
  background: #fff;
}

.contact-icon img {
  display: block;
  width: 52px;
  height: 52px;
  border-radius: inherit;
}

.contact-cta--messenger .contact-icon {
  border: 0;
}

.contact-info {
  display: flex;
  min-width: 0;
  flex-direction: column;
  line-height: 1.15;
}

.contact-info strong {
  font-size: 1rem;
  font-weight: 750;
  white-space: nowrap;
}

.contact-info small {
  margin-top: 4px;
  color: #666;
  font-size: 0.8rem;
}

@media (max-width: 700px) {
  html {
    scroll-snap-type: none;
  }

  .design-page {
    min-height: auto;
    scroll-snap-align: none;
  }

  .design-page img {
    width: 100%;
    max-height: none;
  }

  .contact-actions {
    right: 8px;
    bottom: 8px;
    gap: 10px;
  }

  .contact-cta {
    width: 56px;
    height: 56px;
    justify-content: center;
    gap: 0;
    padding: 0;
    border-radius: 16px;
  }

  .contact-icon {
    width: 52px;
    height: 52px;
    flex-basis: 52px;
  }

  .contact-info {
    display: none;
  }
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link--second {
  left: 9.5rem;
}

@media (max-width: 700px) {
  .skip-link--second {
    top: 4.2rem;
    left: 1rem;
  }
}

.knowledge-fold:not([open]) {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.knowledge-fold[open] {
  display: block;
  background: #fff;
  scroll-snap-align: start;
}

.knowledge-summary {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.75rem 1rem;
  list-style: none;
  cursor: pointer;
  color: #6b221c;
  background: #f6efe3;
  font: 600 0.88rem/1.3 "Be Vietnam Pro", "Helvetica Neue", Helvetica, Arial, sans-serif;
  text-align: center;
}

.knowledge-summary::-webkit-details-marker {
  display: none;
}

.knowledge-summary::after {
  margin-left: 0.45rem;
  content: "▾";
  font-size: 0.75rem;
}

.knowledge-fold[open] .knowledge-summary::after {
  content: "▴";
}

.knowledge {
  --paper: #f6efe3;
  --ink: #3d2418;
  --wine: #6b221c;
  --gold: #8d5a2b;
  --line: rgba(107, 34, 28, 0.14);
  --card: #fffaf2;
  color: var(--ink);
  background:
    radial-gradient(1200px 400px at 10% -10%, rgba(165, 106, 50, 0.08), transparent 50%),
    var(--paper);
  font-family: "Be Vietnam Pro", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

.knowledge {
  padding: 0 1.25rem 8.5rem;
}

.knowledge-hero,
.knowledge-block {
  width: min(920px, 100%);
  margin-inline: auto;
  scroll-margin-top: 1rem;
}

@media (min-width: 1100px) {
  .knowledge {
    padding-right: 300px;
  }
}

.knowledge-hero {
  padding: 4.5rem 0 1.5rem;
  text-align: center;
}

.eyebrow {
  margin: 0 0 0.7rem;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.knowledge h2,
.knowledge h3,
.knowledge h4 {
  font-family: "Cormorant Garamond", "Times New Roman", serif;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--wine);
}

.knowledge h2 {
  margin: 0 0 1.1rem;
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.08;
}

.knowledge h3 {
  margin: 0 0 0.85rem;
  font-size: clamp(1.55rem, 3vw, 2.05rem);
  line-height: 1.2;
}

.knowledge h4,
.knowledge .subhead {
  margin: 1.6rem 0 0.55rem;
  font-size: 1.2rem;
}

.answer-lead,
.direct-answer {
  margin: 0 0 1rem;
  color: #4a3226;
  font-size: 1.02rem;
  line-height: 1.75;
}

.knowledge-toc {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.55rem;
  margin-top: 1.6rem;
}

.knowledge-toc a {
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--wine);
  background: var(--card);
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
}

.knowledge-toc a:hover,
.knowledge-toc a:focus-visible {
  border-color: var(--wine);
}

.knowledge-block {
  padding: 1.6rem 0 2.4rem;
  border-top: 1px solid var(--line);
}

.value-list,
.box-prices {
  margin: 0;
  padding-left: 1.15rem;
  line-height: 1.7;
}

.value-list li + li,
.box-prices li + li {
  margin-top: 0.55rem;
}

.knowledge blockquote {
  margin: 1.5rem 0 0;
  padding: 1rem 1.2rem;
  border-left: 3px solid var(--wine);
  background: rgba(255, 250, 242, 0.8);
}

.knowledge blockquote p {
  margin: 0;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 1.35rem;
  font-style: italic;
}

.knowledge blockquote footer {
  margin-top: 0.4rem;
  color: #7a5a46;
  font-size: 0.85rem;
}

.table-wrap {
  overflow-x: auto;
  margin: 1.1rem 0 0.4rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--card);
}

.compare {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.compare caption {
  padding: 0.85rem 1rem 0;
  caption-side: top;
  color: #7a5a46;
  font-size: 0.8rem;
  text-align: left;
}

.compare th,
.compare td {
  padding: 0.8rem 0.85rem;
  border-top: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.compare thead th {
  background: rgba(107, 34, 28, 0.06);
  color: var(--wine);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.compare tbody th {
  min-width: 10.5rem;
  color: var(--wine);
}

.compare a {
  color: inherit;
}

.flavor-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.flavor-card {
  padding: 1rem 1.05rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--card);
}

.flavor-card h4 {
  margin: 0 0 0.4rem;
}

.price-chip {
  margin: 0 0 0.7rem;
  color: var(--gold);
  font-size: 0.82rem;
  font-weight: 600;
}

.flavor-card ul {
  margin: 0;
  padding-left: 1.05rem;
}

.flavor-card li + li {
  margin-top: 0.28rem;
}

.faq dl {
  margin: 0;
}

.faq dl > div {
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.faq dt {
  color: var(--wine);
  font-weight: 700;
}

.faq dd {
  margin: 0.45rem 0 0;
  line-height: 1.7;
}

.faq a,
.contact-block a {
  color: var(--wine);
}

.note {
  margin: 0.7rem 0 0;
  color: #7a5a46;
  font-size: 0.9rem;
}

.contact-block address {
  margin: 1.1rem 0 0;
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--card);
  font-style: normal;
  line-height: 1.7;
}

.contact-block address p {
  margin: 0;
}

@media (max-width: 800px) {
  .flavor-grid {
    grid-template-columns: 1fr;
  }

  .compare {
    font-size: 0.9rem;
  }

  .compare thead {
    display: none;
  }

  .compare caption {
    padding: 0.85rem 1rem;
  }

  .compare tbody tr {
    display: grid;
    gap: 0.35rem;
    padding: 1rem;
    border-top: 1px solid var(--line);
  }

  .compare tbody th,
  .compare tbody td {
    display: grid;
    grid-template-columns: 7.2rem 1fr;
    min-width: 0;
    padding: 0.15rem 0;
    border: 0;
  }

  .compare tbody th {
    font-size: 1.05rem;
  }

  .compare tbody td::before {
    color: #7a5a46;
    content: attr(data-label);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }

  .compare tbody th::before {
    display: none;
  }

  .compare tbody td[data-label="Nhân"] {
    padding-right: 4.2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}