/* Sỏi Nghệ Thuật G.art — texts from the web archive (2020); thematic visuals, the archive has no images or CSS */
:root {
  --cream: #f6f1e9;
  --paper: #fffdf9;
  --ink: #2b2622;
  --ink-soft: #6b625a;
  --terra: #b5532e;
  --terra-dark: #8f3d1f;
  --sage: #5f7f68;
  --sage-ink: #4a6552;
  --sage-soft: #e6ece4;
  --ocher: #d9a441;
  --line: #e6ddd0;
  --font: "Be Vietnam Pro", "Helvetica Neue", Arial, sans-serif;
  --font-head: "Lora", Georgia, "Times New Roman", serif;
  --wrap: 1180px;
  --radius: 14px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-padding-top: 84px; }
body { margin: 0; background: var(--cream); color: var(--ink); font: 400 15.5px/1.7 var(--font); -webkit-font-smoothing: antialiased; overflow-wrap: break-word; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--terra-dark); }
a:hover { color: var(--terra); }
:focus-visible { outline: 3px solid var(--terra-dark); outline-offset: 3px; }
.top-bar :focus-visible, .contact__card :focus-visible, .site-footer :focus-visible { outline-color: #fff; }
[hidden] { display: none !important; }
h1, h2, h3, h4 { margin: 0; font-family: var(--font-head); line-height: 1.25; color: var(--ink); }
p { margin: 0 0 14px; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; border: 0; }
.icon { flex: none; }

.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 26px; border: 2px solid var(--terra); border-radius: 999px; background: var(--terra); color: #fff; font: 600 15px/1.2 var(--font); text-decoration: none; transition: background .2s, border-color .2s, color .2s; }
.btn:hover { background: var(--terra-dark); border-color: var(--terra-dark); color: #fff; }
.btn--ghost { background: transparent; color: var(--terra-dark); }
.btn--ghost:hover { background: var(--terra); color: #fff; }

/* ---------- header ---------- */
.top-bar { background: var(--ink); color: #efe7dc; font-size: 13px; }
.top-bar__inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 20px; padding-block: 7px; }
.top-bar p { display: inline-flex; align-items: center; gap: 7px; margin: 0; }
.top-bar a { color: #fff; text-decoration: none; font-weight: 600; }
.top-bar a:hover { color: var(--ocher); }

.site-header { position: sticky; top: 0; z-index: 40; background: var(--paper); border-bottom: 1px solid var(--line); }
.site-header__inner { display: flex; align-items: center; gap: 20px; min-height: 72px; }
.brand { position: relative; z-index: 60; display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; }
.brand img { width: 44px; height: 44px; }
.brand__name { display: block; font: 700 21px/1.1 var(--font-head); }
.brand__name span { color: var(--terra); }
.brand__tag { display: block; font-size: 12px; color: var(--ink-soft); letter-spacing: .04em; }
.brand:hover { color: var(--ink); }
.nav-toggle { position: relative; z-index: 60; display: none; margin-left: auto; width: 44px; height: 44px; padding: 10px; background: none; border: 0; color: var(--ink); cursor: pointer; }
.nav-toggle svg { display: block; }
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }
.primary-nav { margin-left: auto; }
.primary-nav__list { display: flex; flex-wrap: wrap; gap: 2px; margin: 0; padding: 0; list-style: none; }
.primary-nav__list a { display: block; padding: 8px 11px; border-radius: 999px; color: var(--ink); font-size: 14px; font-weight: 500; text-decoration: none; white-space: nowrap; }
.primary-nav__list a:hover { background: var(--sage-soft); color: var(--sage-ink); }

/* ---------- hero ---------- */
.hero { padding: 56px 0 40px; background: radial-gradient(circle at 85% 20%, #f1e3cf 0, transparent 45%), var(--cream); }
.hero__inner { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 40px; align-items: center; }
.eyebrow { display: inline-block; margin: 0 0 14px; padding: 5px 14px; border-radius: 999px; background: var(--sage-soft); color: var(--sage-ink); font-size: 13px; font-weight: 600; letter-spacing: .04em; }
.hero h1 { font-size: clamp(32px, 4.6vw, 54px); font-weight: 700; }
.hero h1 em { font-style: italic; color: var(--terra); }
.hero__lead { margin: 18px 0 26px; font-size: 17px; color: var(--ink-soft); max-width: 54ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 0; }
.hero__art { margin: 0; }
.hero__art img { width: 100%; max-width: 560px; margin-left: auto; }
.perks { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin: 44px 0 0; padding: 0; list-style: none; }
.perks li { display: flex; align-items: center; gap: 12px; padding: 14px 16px; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); font-size: 14px; font-weight: 500; line-height: 1.4; }
.perks svg { color: var(--terra); }

/* ---------- sections ---------- */
.section { padding: 72px 0; }
.section--paper { background: var(--paper); }
.section--sage { background: var(--sage-soft); }
.section__head { max-width: 720px; margin: 0 auto 40px; text-align: center; }
.section__kicker { margin: 0 0 8px; color: var(--terra-dark); font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.section__title { font-size: clamp(26px, 3.4vw, 38px); }
.section__lead { margin: 12px 0 0; color: var(--ink-soft); }

/* giới thiệu */
.about { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 40px; align-items: center; }
.about__text p { font-size: 16.5px; }
.about__quote { margin: 22px 0 0; padding: 18px 22px; border-left: 4px solid var(--ocher); background: var(--cream); border-radius: 0 var(--radius) var(--radius) 0; font: italic 500 18px/1.55 var(--font-head); }
.materials { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin: 0; padding: 0; list-style: none; }
.materials li { padding: 20px; background: var(--cream); border-radius: var(--radius); }
.materials h3 { display: flex; align-items: center; gap: 10px; font-size: 18px; margin-bottom: 6px; }
.materials h3 svg { color: var(--terra); }
.materials p { margin: 0; font-size: 14px; color: var(--ink-soft); }

/* sỏi nghệ thuật */
.art-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; margin: 0; padding: 0; list-style: none; }
.art-card { height: 100%; overflow: hidden; background: var(--paper); border-radius: var(--radius); border: 1px solid var(--line); }
.art-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.art-card__body { padding: 16px 20px 20px; }
.art-card h3 { font-size: 20px; margin-bottom: 6px; }
.art-card p { margin: 0; font-size: 14.5px; color: var(--ink-soft); }

/* sản phẩm */
.products { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin: 0; padding: 0; list-style: none; }
.product { display: flex; flex-direction: column; height: 100%; padding: 20px; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); }
.product__cat { align-self: flex-start; margin: 0 0 12px; padding: 3px 10px; border-radius: 999px; background: var(--sage-soft); color: var(--sage-ink); font-size: 12px; font-weight: 600; }
.product h3 { flex: 1; font-size: 17px; margin-bottom: 14px; }
.product__price { margin: 0; padding-top: 12px; border-top: 1px dashed var(--line); color: var(--terra-dark); font: 700 19px/1.2 var(--font); }
.product__price--ask { color: var(--ink-soft); font-size: 15px; font-weight: 600; }

/* dịch vụ */
.services { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin: 0; padding: 0; list-style: none; }
.service { height: 100%; padding: 24px; background: var(--paper); border-radius: var(--radius); border: 1px solid var(--line); }
.service__icon { display: grid; place-items: center; width: 52px; height: 52px; margin-bottom: 14px; border-radius: 14px; background: #f4e3d6; color: var(--terra); }
.service h3 { font-size: 20px; margin-bottom: 8px; }
.service p { margin: 0; font-size: 14.5px; color: var(--ink-soft); }
.service--wide { grid-column: span 2; }
.check-list { margin: 12px 0 0; padding: 0; list-style: none; columns: 2; column-gap: 20px; }
.check-list li { position: relative; padding: 3px 0 3px 22px; font-size: 14px; break-inside: avoid; }
.check-list li::before { content: ""; position: absolute; left: 2px; top: 11px; width: 10px; height: 5px; border-left: 2px solid var(--sage); border-bottom: 2px solid var(--sage); transform: rotate(-45deg); }

/* quà tặng doanh nghiệp */
.b2b { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 36px; align-items: start; }
.b2b__intro p { font-size: 16px; }
.discount { display: flex; align-items: center; gap: 16px; margin: 20px 0; padding: 18px 20px; background: var(--terra); border-radius: var(--radius); color: #fff; }
.discount strong { font: 700 38px/1 var(--font-head); }
.discount p { margin: 0; font-size: 14.5px; }
.price-lines { margin: 0; padding: 0; list-style: none; background: var(--paper); border-radius: var(--radius); border: 1px solid var(--line); }
.price-lines li { display: flex; justify-content: space-between; gap: 16px; padding: 13px 18px; border-bottom: 1px solid var(--line); }
.price-lines li:last-child { border-bottom: 0; }
.price-lines span { color: var(--ink-soft); font-size: 14px; text-align: right; }
.reasons { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 0; padding: 0; list-style: none; }
.reasons li { display: flex; gap: 12px; align-items: flex-start; padding: 16px; background: var(--paper); border-radius: var(--radius); border: 1px solid var(--line); font-size: 14.5px; line-height: 1.5; }
.reasons svg { margin-top: 1px; color: var(--sage); }
.b2b__sub { margin: 26px 0 12px; font-size: 20px; }

/* truyền thông */
.videos { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin: 0; padding: 0; list-style: none; }
.video-card { display: block; height: 100%; overflow: hidden; background: var(--paper); border-radius: var(--radius); border: 1px solid var(--line); color: var(--ink); text-decoration: none; }
.video-card:hover { color: var(--terra-dark); }
.video-card__thumb { position: relative; }
.video-card__thumb img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.video-card__play { position: absolute; inset: 0; display: grid; place-items: center; color: #fff; background: rgba(0, 0, 0, .18); transition: background .2s; }
.video-card__play span { display: grid; place-items: center; width: 62px; height: 62px; border-radius: 50%; background: rgba(181, 83, 46, .92); }
.video-card:hover .video-card__play { background: rgba(0, 0, 0, .05); }
.video-card h3 { padding: 14px 18px 18px; font-size: 17px; }

/* đánh giá */
.reviews { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin: 0; padding: 0; list-style: none; }
.review { display: flex; flex-direction: column; height: 100%; margin: 0; padding: 24px; background: var(--paper); border-radius: var(--radius); border: 1px solid var(--line); }
.review svg { color: var(--ocher); margin-bottom: 10px; }
.review blockquote { flex: 1; margin: 0 0 14px; font-size: 14.5px; }
.review blockquote p { margin: 0; }
.review figcaption { font-weight: 700; }
.review figcaption span { display: block; font-weight: 400; font-size: 13px; color: var(--ink-soft); }

/* blog */
.posts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px 20px; margin: 0; padding: 0; list-style: none; }
.post { display: flex; gap: 14px; align-items: flex-start; padding: 14px 0; border-bottom: 1px solid var(--line); }
.post time { flex: none; display: grid; place-items: center; width: 56px; height: 56px; border-radius: 12px; background: var(--terra); color: #fff; font-size: 11px; line-height: 1.15; text-align: center; }
.post time b { display: block; font-size: 20px; }
.post h3 { font-size: 16px; line-height: 1.4; }

/* chính sách */
.faq { max-width: 860px; margin: 0 auto; }
.faq details { margin-bottom: 12px; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); }
.faq summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 22px; cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary h3 { font-size: 18px; }
.faq summary::after { content: ""; flex: none; width: 10px; height: 10px; border-right: 2px solid var(--terra); border-bottom: 2px solid var(--terra); transform: rotate(45deg); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(-135deg); }
.faq__body { padding: 0 22px 18px; font-size: 15px; color: var(--ink-soft); }
.faq__body ol { margin: 0; padding-left: 20px; }
.faq__body p:last-child { margin-bottom: 0; }

/* liên hệ */
.contact { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px; align-items: stretch; }
.contact__card { padding: 30px; background: var(--ink); color: #efe7dc; border-radius: var(--radius); }
.contact__card h3 { color: #fff; font-size: 24px; margin-bottom: 18px; }
.contact__list { margin: 0; padding: 0; list-style: none; }
.contact__list li { display: flex; gap: 14px; padding: 12px 0; border-bottom: 1px solid rgba(255, 255, 255, .12); }
.contact__list li:last-child { border-bottom: 0; }
.contact__list svg { margin-top: 4px; color: var(--ocher); }
.contact__list a { color: #fff; font-weight: 600; text-decoration: none; }
.contact__list a:hover { color: var(--ocher); }
.contact__order { padding: 30px; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); }
.contact__order h3 { font-size: 24px; margin-bottom: 10px; }
.contact__order .check-list { columns: 1; margin-bottom: 22px; }
.contact__actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 0; }

/* ---------- footer ---------- */
.site-footer { background: #231f1c; color: #cfc5b8; font-size: 14px; }
.site-footer__inner { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 10px 24px; padding-block: 22px; }
.site-footer p { margin: 0; }
.site-footer a { color: #fff; }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .primary-nav__list a { padding: 8px 8px; font-size: 13.5px; }
  .products { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 991px) {
  .js .nav-toggle { display: block; }
  .js .primary-nav { position: fixed; inset: 0; z-index: 50; padding: calc(96px + env(safe-area-inset-top, 0px)) 24px 24px; background: var(--paper); display: none; overflow-y: auto; }
  .js .primary-nav.is-open { display: block; }
  .primary-nav__list { flex-direction: column; gap: 0; }
  .primary-nav__list a { padding: 14px 6px; border-radius: 0; border-bottom: 1px solid var(--line); font-size: 17px; }
  .hero__inner, .about, .b2b, .contact { grid-template-columns: minmax(0, 1fr); }
  .hero__art img { margin: 0 auto; max-width: 440px; }
  .perks { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .art-grid, .services, .videos, .reviews, .posts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .service--wide { grid-column: 1 / -1; }
}

@media (max-width: 767px) {
  .top-bar__inner { justify-content: center; }
  .top-bar__address { display: none !important; }
  .hero { padding: 36px 0 28px; }
  .section { padding: 52px 0; }
  .products { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .product { padding: 16px; }
  .product h3 { font-size: 15.5px; }
  .materials, .reasons { grid-template-columns: minmax(0, 1fr); }
  .services, .videos, .reviews, .posts { grid-template-columns: minmax(0, 1fr); }
  .art-grid { gap: 12px; }
  .art-card__body { padding: 12px 14px 14px; }
  .art-card h3 { font-size: 16px; }
  .art-card p { font-size: 13px; }
  .check-list { columns: 1; }
  .brand__tag { display: none; }
}

@media (max-width: 480px) {
  .art-grid { grid-template-columns: minmax(0, 1fr); }
  .perks { grid-template-columns: minmax(0, 1fr); }
  .products { grid-template-columns: minmax(0, 1fr); }
}

.service .check-list { columns: 1; }
body.nav-open { overflow: hidden; }