/* =========================================================================
   BAO BÌ GREENSUN – design system + toàn bộ giao diện trang chủ.
   Hệ màu lấy trực tiếp từ logo (xanh #1A9647, cam #F15927), đã hiệu chỉnh độ
   đậm để đạt tương phản WCAG 2.2 AA (đo bằng công thức tương phản chuẩn).
   Mobile-first; tôn trọng prefers-reduced-motion. Dùng chung .vs-container /
   .vs-ico / màu --vs-* của theme cha để tránh trùng lặp CSS.
   ========================================================================= */

:root {
  --gs-primary: #12793A;        /* xanh logo đã đậm hoá — 5.5:1 với chữ trắng */
  --gs-primary-dark: #08361A;   /* footer, hover — 13.5:1 với chữ trắng */
  --gs-primary-soft: #1A9647;   /* xanh logo gốc — icon, viền trang trí */
  --gs-accent: #F15927;         /* cam logo gốc — nền huy hiệu/giá, dùng với chữ tối */
  --gs-accent-text: #B5431D;    /* cam đậm hoá — dùng làm CHỮ trên nền sáng (5.5:1) */
  --gs-accent-light: #FFE9DD;
  --gs-bg-cream: #FFF6EE;
  --gs-bg-green-light: #EEF7F0;
  --gs-text: #17241D;
  --gs-text-muted: #5D6B63;
  --gs-border: #E3EAE5;
  --gs-white: #FFFFFF;
  --gs-shadow: 0 2px 12px rgba(8, 54, 26, 0.08);
  --gs-shadow-lg: 0 8px 28px rgba(8, 54, 26, 0.14);
  --gs-radius: 12px;
  --gs-radius-sm: 8px;
  --gs-section-gap: 56px;
}
@media (min-width: 992px) {
  :root { --gs-section-gap: 88px; }
}

/* ---------- Base ---------- */
.greensun { margin: 0; font-size: 16px; line-height: 1.7; color: var(--gs-text); background: var(--gs-white); -webkit-font-smoothing: antialiased; }
.greensun *, .greensun *::before, .greensun *::after { box-sizing: border-box; }
/* :where() giữ độ ưu tiên = 0 để mọi component tự đặt kích thước/màu riêng luôn đè được. */
:where(.greensun img) { max-width: 100%; height: auto; }
:where(.greensun a) { color: var(--gs-primary); }
@media (min-width: 992px) { .greensun { font-size: 17px; } }

.greensun :focus-visible { outline: 3px solid var(--gs-accent); outline-offset: 2px; border-radius: 4px; }
.greensun [id] { scroll-margin-top: calc(var(--vs-header-h, 72px) + 16px); }

.gs-section { padding-block: var(--gs-section-gap); }
.gs-section--tight { padding-block: calc(var(--gs-section-gap) * .55); }
.gs-section__head { max-width: 960px; margin: 0 auto 32px; text-align: center; }
.gs-section__sub { max-width: 720px; margin: 10px auto 0; color: var(--gs-text-muted); }
.gs-section__cta { text-align: center; margin-top: 32px; }

.gs-eyebrow { display: inline-block; margin: 0 0 8px; font-size: 13px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gs-primary-soft); }
.gs-eyebrow::before { content: ""; display: inline-block; width: 26px; height: 3px; background: var(--gs-accent); border-radius: 2px; margin-right: 8px; vertical-align: middle; }
.gs-eyebrow--light { color: var(--gs-accent); }

.gs-h2 { margin: 0; font-size: 26px; line-height: 1.3; font-weight: 800; color: var(--gs-primary); }
/* .greensun prefix cần thiết để thắng specificity rule ".vs-scope h1,h2,h3,h4"
   của theme cha (ép màu xanh lá mặc định lên MỌI heading) — nếu chỉ dùng 1
   class trần thì thua rule đó, khiến chữ trắng biến thành xanh lá, gần như vô
   hình trên nền xanh đậm. Lỗi thực tế đã gặp (heading mờ/mất chữ trên hero,
   khối "Ứng dụng theo ngành", khối "Liên hệ" và dải CTA trước footer). */
.greensun .gs-h2--light { color: var(--gs-white); }
@media (min-width: 992px) { .gs-h2 { font-size: 36px; } }
.gs-lead { font-size: 1.05em; color: var(--gs-text-muted); }

.gs-admin-note { max-width: var(--vs-container-w, 1280px); margin: 14px auto 0; padding: 10px 16px; background: #FFF3CD; border: 1px dashed #D4A72C; border-radius: var(--gs-radius-sm); color: #6b5310; font-size: 14px; }

/* ---------- Buttons ---------- */
.gs-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 10px 22px; border: 2px solid transparent; border-radius: 999px; font-family: inherit; font-size: 16px; font-weight: 700; line-height: 1.2; text-decoration: none; cursor: pointer; transition: background-color .2s, color .2s, border-color .2s, transform .2s; }
.gs-btn:hover { transform: translateY(-1px); }
.gs-btn:active { transform: translateY(0); filter: brightness(.95); }
.gs-btn--primary { background: var(--gs-primary); color: #fff; }
.gs-btn--primary:hover { background: var(--gs-primary-dark); color: #fff; }
.gs-btn--accent { background: var(--gs-accent); color: #fff; }
.gs-btn--accent:hover { background: var(--gs-accent-text); color: #fff; }
.gs-btn--outline { background: transparent; color: var(--gs-primary); border-color: var(--gs-primary); }
.gs-btn--outline:hover { background: var(--gs-primary); color: #fff; }
.gs-btn--outline-light { background: rgba(255,255,255,.08); color: #fff; border-color: rgba(255,255,255,.75); }
.gs-btn--outline-light:hover { background: #fff; color: var(--gs-primary); }
.gs-btn--sm { min-height: 40px; padding: 7px 16px; font-size: 14.5px; }
.gs-btn--block { width: 100%; }

/* ---------- Hero ----------
   Nền màu thương hiệu đặc (không dùng ảnh sản phẩm làm nền full-bleed như
   trước — ảnh nền trắng bị gradient tối phủ lên làm mờ gần hết, chữ khó đọc).
   Ảnh sản phẩm thật hiển thị rõ trong khung thẻ bo góc bên cạnh, không bị
   cắt/méo/phủ mờ. */
.gs-hero { position: relative; overflow: hidden; background: linear-gradient(160deg, var(--gs-primary) 0%, var(--gs-primary-dark) 78%); }
.gs-hero__bg { position: absolute; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.gs-hero__blob { position: absolute; border-radius: 50%; filter: blur(46px); opacity: .35; }
.gs-hero__blob--accent { top: -12%; right: -8%; width: 420px; height: 420px; background: var(--gs-accent); }
.gs-hero__blob--soft { bottom: -18%; left: -10%; width: 380px; height: 380px; background: var(--gs-primary-soft); opacity: .4; }

.gs-hero__slide { position: relative; display: none; padding-block: 44px; }
.gs-hero__slide.is-active { display: block; }
.gs-hero__grid { position: relative; z-index: 2; display: grid; gap: 32px; align-items: center; grid-template-columns: 1fr; }
.gs-hero__content { display: flex; flex-direction: column; align-items: flex-start; color: #fff; }
.gs-hero__eyebrow { margin: 0 0 10px; font-size: 13px; font-weight: 700; letter-spacing: .12em; color: var(--gs-accent); text-transform: uppercase; }
.gs-hero .gs-hero__title { margin: 0 0 14px; font-size: 28px; line-height: 1.26; font-weight: 800; color: #fff; }
.gs-hero .gs-hero__desc { margin: 0 0 24px; max-width: 520px; font-size: 16px; color: rgba(255,255,255,.9); }
.gs-hero__ctas { display: flex; flex-wrap: wrap; gap: 12px; }
.gs-hero__phone { display: inline-flex; align-items: center; gap: 8px; margin-top: 22px; color: #fff; text-decoration: none; font-size: 15.5px; }
.gs-hero__phone strong { color: var(--gs-accent); font-size: 1.1em; }

/* Ảnh sản phẩm trong khung thẻ trắng bo góc, có khối mờ màu cam phía sau tạo
   chiều sâu — ảnh luôn hiển thị nguyên vẹn, không cắt/kéo méo. */
.gs-hero__visual { position: relative; display: flex; justify-content: center; }
.gs-hero__visual-blob { position: absolute; inset: 8% 10%; border-radius: 44px; background: var(--gs-accent); opacity: .22; filter: blur(2px); transform: rotate(-4deg); }
.gs-hero__frame { position: relative; width: min(100%, 360px); aspect-ratio: 1 / 1; padding: 14px; background: #fff; border-radius: 28px; box-shadow: 0 20px 44px rgba(0,0,0,.28); }
.gs-hero__img { display: block; width: 100%; height: 100%; object-fit: contain; border-radius: 16px; }

@media (min-width: 768px) {
  .gs-hero__title { font-size: 34px; }
}
@media (min-width: 992px) {
  .gs-hero__slide { padding-block: 64px; }
  .gs-hero__grid { grid-template-columns: 1.15fr 1fr; gap: 48px; }
  .gs-hero__title { font-size: 44px; }
  .gs-hero__desc { font-size: 18px; }
  .gs-hero__frame { width: 100%; max-width: 420px; }
}
.gs-hero__controls { position: absolute; z-index: 3; left: 0; right: 0; bottom: 14px; display: flex; align-items: center; justify-content: center; gap: 14px; }
.gs-hero__arrow { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border: 1px solid rgba(255,255,255,.4); border-radius: 50%; background: rgba(8,54,26,.4); color: #fff; cursor: pointer; }
.gs-hero__arrow .vs-ico { transform: scaleX(-1); }
.gs-hero__arrow--next .vs-ico { transform: none; }
.gs-hero__arrow:hover { background: var(--gs-accent); border-color: var(--gs-accent); }
.gs-hero__dots { display: flex; gap: 10px; }
.gs-hero__dots button { width: 12px; height: 12px; padding: 0; border: 1px solid rgba(255,255,255,.7); border-radius: 50%; background: transparent; cursor: pointer; }
.gs-hero__dots button.is-active { background: var(--gs-accent); border-color: var(--gs-accent); }
.gs-hero__pause { position: relative; width: 44px; height: 44px; border: 0; background: transparent; cursor: pointer; color: #fff; }
.gs-hero__pause::before { content: "❚❚"; font-size: 13px; letter-spacing: 1px; }
.gs-hero__pause[aria-pressed="true"]::before { content: "►"; }

/* ---------- Lợi ích nhanh ---------- */
.gs-adv { padding-block: 34px; background: var(--gs-bg-cream); border-bottom: 1px solid var(--gs-border); }
.gs-adv__list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px 16px; margin: 0; padding: 0; list-style: none; }
.gs-adv__item { text-align: center; }
.gs-adv__icon { display: inline-flex; align-items: center; justify-content: center; width: 54px; height: 54px; margin-bottom: 10px; background: #fff; border: 1px solid var(--gs-border); border-radius: 14px; color: var(--gs-primary); box-shadow: var(--gs-shadow); }
.gs-adv__title { margin: 0 0 4px; font-size: 15.5px; font-weight: 700; color: var(--gs-primary); }
.gs-adv__desc { margin: 0; font-size: 13.5px; color: var(--gs-text-muted); line-height: 1.55; }
@media (min-width: 768px) { .gs-adv__list { grid-template-columns: repeat(4, 1fr); } }

/* ---------- Danh mục ---------- */
.gs-cats__grid { display: grid; gap: 18px; grid-template-columns: 1fr; }
.gs-cat-card { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--gs-border); border-radius: var(--gs-radius); overflow: hidden; transition: box-shadow .25s, transform .25s; }
.gs-cat-card:hover { box-shadow: var(--gs-shadow-lg); transform: translateY(-3px); }
.gs-cat-card__media { display: block; aspect-ratio: 4 / 3; background: var(--gs-bg-green-light); overflow: hidden; }
.gs-cat-card__media img { width: 100%; height: 100%; object-fit: contain; padding: 14px; }
.gs-cat-card__body { padding: 18px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.gs-cat-card__title { margin: 0; font-size: 18px; }
.gs-cat-card__title a { color: var(--gs-primary); text-decoration: none; }
.gs-cat-card__title a:hover { text-decoration: underline; }
.gs-cat-card__desc { margin: 0 0 6px; color: var(--gs-text-muted); font-size: 14.5px; flex: 1; }
@media (min-width: 640px) { .gs-cats__grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 992px) { .gs-cats__grid { grid-template-columns: repeat(4, 1fr); } }

/* ---------- Cards chung ---------- */
.gs-card { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--gs-border); border-radius: var(--gs-radius); overflow: hidden; transition: box-shadow .25s, transform .25s, border-color .25s; }
.gs-card:hover { box-shadow: var(--gs-shadow-lg); transform: translateY(-3px); border-color: #cfe0d4; }
.gs-card__media { position: relative; display: block; aspect-ratio: 3 / 2; overflow: hidden; background: var(--gs-bg-green-light); }
.gs-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.gs-card:hover .gs-card__media img { transform: scale(1.04); }
.gs-card__body { display: flex; flex-direction: column; flex: 1; padding: 18px; }
.gs-card__title { margin: 0 0 8px; font-size: 17px; font-weight: 700; line-height: 1.4; }
.gs-card__title a { color: var(--gs-primary); text-decoration: none; }
.gs-card__title a:hover { text-decoration: underline; }
.gs-card__desc { margin: 0 0 12px; font-size: 14.5px; color: var(--gs-text-muted); }
.gs-card__meta { margin: 0 0 12px; padding: 0; list-style: none; font-size: 13.5px; color: var(--gs-text-muted); display: grid; gap: 4px; }
.gs-card__link { display: inline-flex; align-items: center; gap: 6px; margin-top: auto; color: var(--gs-primary); font-weight: 700; font-size: 14.5px; text-decoration: none; }
.gs-card__link:hover { color: var(--gs-primary-dark); text-decoration: underline; }

/* ---------- Sản phẩm / tabs / filter ---------- */
.gs-tabs__nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-bottom: 26px; }
.gs-tabs__nav [role="tab"] { min-height: 42px; padding: 8px 18px; border: 1px solid var(--gs-border); border-radius: 999px; background: #fff; font-family: inherit; font-size: 14.5px; font-weight: 600; color: var(--gs-text); cursor: pointer; }
.gs-tabs__nav [role="tab"]:hover { border-color: var(--gs-primary); color: var(--gs-primary); }
.gs-tabs__nav [role="tab"].is-active { background: var(--gs-primary); border-color: var(--gs-primary); color: #fff; }
.gs-tabs__panel { display: none; }
.gs-tabs__panel.is-active { display: block; }

.gs-filter { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-bottom: 26px; }
.gs-filter__btn { display: inline-flex; min-height: 40px; align-items: center; padding: 7px 18px; border: 1px solid var(--gs-border); border-radius: 999px; background: #fff; color: var(--gs-text); font-size: 14.5px; font-weight: 600; text-decoration: none; transition: all .2s; }
.gs-filter__btn:hover { border-color: var(--gs-primary); color: var(--gs-primary); }
.gs-filter__btn.is-active { background: var(--gs-primary); border-color: var(--gs-primary); color: #fff; }

.gs-products__grid, .gs-blog__grid, .gs-gallery__grid { display: grid; gap: 18px; grid-template-columns: repeat(2, 1fr); }
@media (min-width: 768px) { .gs-blog__grid { grid-template-columns: repeat(3, 1fr); } .gs-products__grid { grid-template-columns: repeat(3, 1fr); } .gs-gallery__grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 992px) { .gs-products__grid, .gs-gallery__grid { grid-template-columns: repeat(4, 1fr); } }
[data-gs-filter-item].is-hidden { display: none; }
.gs-product-card__price { margin: 0 0 12px; font-weight: 800; color: var(--gs-accent-text); font-size: 15.5px; }
.gs-product-card__ctas { display: flex; gap: 8px; margin-top: auto; flex-wrap: wrap; }
.gs-blog-card__date { display: flex; align-items: center; gap: 6px; margin: 0 0 10px; font-size: 13px; color: var(--gs-text-muted); }

.gs-empty-band { max-width: 720px; margin: 0 auto; padding: 30px 24px; text-align: center; background: var(--gs-bg-cream); border: 1px solid var(--gs-border); border-radius: var(--gs-radius); }
.gs-empty-band__text { margin: 0 0 18px; color: var(--gs-text); }
.gs-empty-band__ctas { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }

/* ---------- Giới thiệu ---------- */
.gs-about__grid { display: grid; gap: 30px; align-items: center; }
.gs-about__media img { width: 100%; border-radius: var(--gs-radius); box-shadow: var(--gs-shadow-lg); object-fit: cover; }
.gs-checklist { margin: 20px 0 22px; padding: 0; list-style: none; display: grid; gap: 11px; }
.gs-checklist li { display: flex; gap: 10px; align-items: flex-start; }
.gs-checklist .vs-ico { color: var(--gs-primary-soft); margin-top: 3px; background: var(--gs-bg-green-light); border-radius: 50%; padding: 3px; width: 22px; height: 22px; flex: none; }
.gs-about__address { display: flex; align-items: flex-start; gap: 8px; margin: 0 0 20px; color: var(--gs-text-muted); font-size: 14.5px; }
@media (min-width: 992px) { .gs-about__grid { grid-template-columns: 5fr 6fr; gap: 56px; } }

/* ---------- Ứng dụng theo ngành ---------- */
.gs-solutions { background: var(--gs-primary); }
.gs-solutions .gs-eyebrow, .gs-solutions .gs-h2 { color: #fff; }
.gs-solutions .gs-eyebrow::before { background: var(--gs-accent); }
.gs-solutions__grid { display: grid; gap: 14px; grid-template-columns: 1fr; }
.gs-solution { display: flex; gap: 14px; padding: 20px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.16); border-radius: var(--gs-radius); }
.gs-solution__icon { display: inline-flex; align-items: center; justify-content: center; flex: none; width: 50px; height: 50px; background: var(--gs-accent); color: #fff; border-radius: 12px; }
.gs-solution__title { display: block; font-size: 16.5px; color: #fff; margin-bottom: 3px; }
.gs-solution__desc { display: block; font-size: 14px; color: rgba(255,255,255,.85); }
@media (min-width: 640px) { .gs-solutions__grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 992px) { .gs-solutions__grid { grid-template-columns: repeat(3, 1fr); } }

/* ---------- Quy trình ---------- */
.gs-process__list { counter-reset: step; display: grid; gap: 16px; grid-template-columns: 1fr; margin: 0; padding: 0; list-style: none; }
.gs-process__step { position: relative; padding: 22px 20px 20px; background: #fff; border: 1px solid var(--gs-border); border-radius: var(--gs-radius); }
.gs-process__num { position: absolute; top: -13px; left: 18px; display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; background: var(--gs-accent); color: #fff; font-weight: 800; font-size: 14px; border-radius: 50%; box-shadow: var(--gs-shadow); }
.gs-process__icon { display: inline-flex; color: var(--gs-primary); margin-bottom: 8px; }
.gs-process__title { margin: 0 0 6px; font-size: 16.5px; font-weight: 700; color: var(--gs-primary); }
.gs-process__desc { margin: 0; font-size: 14px; color: var(--gs-text-muted); }
@media (min-width: 640px) { .gs-process__list { grid-template-columns: 1fr 1fr; } }
@media (min-width: 992px) { .gs-process__list { grid-template-columns: repeat(4, 1fr); } }

/* ---------- Gallery ---------- */
.gs-gallery { background: var(--gs-bg-green-light); }
.gs-gallery__item { margin: 0; background: #fff; border: 1px solid var(--gs-border); border-radius: var(--gs-radius-sm); overflow: hidden; }
.gs-gallery__item img { display: block; width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.gs-gallery__item figcaption { padding: 8px 12px; font-size: 13px; color: var(--gs-text-muted); }

/* ---------- FAQ ---------- */
.gs-faq__wrap { max-width: 860px; }
.gs-faq__list { display: grid; gap: 10px; }
.gs-faq__item { border: 1px solid var(--gs-border); border-radius: var(--gs-radius-sm); background: #fff; overflow: hidden; }
.gs-faq__q { margin: 0; }
.gs-faq__btn { display: flex; align-items: center; justify-content: space-between; gap: 12px; width: 100%; min-height: 52px; padding: 14px 18px; border: 0; background: transparent; font-family: inherit; font-size: 15.5px; font-weight: 600; color: var(--gs-primary); text-align: left; cursor: pointer; }
.gs-faq__btn:hover { background: var(--gs-bg-green-light); }
.gs-faq__btn .vs-ico { flex: none; transition: transform .2s; }
.gs-faq__btn[aria-expanded="true"] .vs-ico { transform: rotate(180deg); }
.gs-faq__a { padding: 0 18px 16px; color: var(--gs-text-muted); font-size: 15px; }
.gs-faq__a p { margin: 0; }

/* ---------- Liên hệ + form ---------- */
.gs-contact { background: linear-gradient(160deg, var(--gs-primary) 0%, var(--gs-primary-dark) 100%); }
.gs-contact__grid { display: grid; gap: 32px; }
.gs-contact__lead { color: rgba(255,255,255,.88); margin: 12px 0 22px; }
.gs-contact__list { margin: 0 0 18px; padding: 0; list-style: none; display: grid; gap: 13px; }
.gs-contact__list li { display: flex; align-items: center; gap: 11px; flex-wrap: wrap; color: #fff; }
.gs-contact__list .vs-ico { color: var(--gs-accent); width: 22px; height: 22px; flex: none; }
.gs-contact__list a { color: #fff; font-weight: 600; text-decoration: none; font-size: 16px; }
.gs-contact__list a:hover { color: var(--gs-accent); }
.gs-contact__list a.gs-contact__map { font-size: 13.5px; font-weight: 700; color: var(--gs-accent); }
.gs-contact__privacy { display: flex; align-items: flex-start; gap: 8px; margin-top: 16px; color: rgba(255,255,255,.78); font-size: 13.5px; }
.gs-contact__privacy .vs-ico { color: var(--gs-accent); margin-top: 2px; flex: none; }
.gs-contact__privacy a { color: rgba(255,255,255,.95); text-decoration: underline; }

.gs-form { padding: 26px 22px; background: #fff; border-radius: var(--gs-radius); box-shadow: var(--gs-shadow-lg); }
.gs-form__hp { position: absolute !important; left: -9999px !important; }
.gs-form__row { display: grid; gap: 14px; }
.gs-form__field { margin-bottom: 14px; }
.gs-form__field label { display: block; margin-bottom: 6px; font-size: 14px; font-weight: 600; color: var(--gs-text); }
.gs-req { color: #C0392B; }
.gs-optional { font-weight: 400; color: var(--gs-text-muted); font-size: .9em; }
.gs-form__field input[type="text"], .gs-form__field input[type="tel"], .gs-form__field input[type="email"], .gs-form__field select, .gs-form__field textarea { width: 100%; min-height: 46px; padding: 10px 14px; border: 1px solid var(--gs-border); border-radius: var(--gs-radius-sm); background: #fff; font-family: inherit; font-size: 15.5px; color: var(--gs-text); }
.gs-form__field textarea { resize: vertical; }
.gs-form__field input:focus, .gs-form__field select:focus, .gs-form__field textarea:focus { outline: none; border-color: var(--gs-primary); box-shadow: 0 0 0 3px rgba(18,121,58,.14); }
.gs-form__field input.is-invalid { border-color: #C0392B; }
.gs-form__consent label { display: flex; align-items: flex-start; gap: 10px; font-weight: 400; font-size: 14.5px; cursor: pointer; }
.gs-form__consent input[type="checkbox"] { width: 20px; height: 20px; flex: none; margin-top: 2px; }
.gs-form__submit { width: 100%; margin-top: 6px; }
.gs-form__status { margin-bottom: 12px; font-size: 14.5px; font-weight: 600; }
.gs-form__status .is-ok { display: block; padding: 11px 14px; background: #E8F5EE; color: #14532D; border: 1px solid #A7D7BC; border-radius: var(--gs-radius-sm); }
.gs-form__status .is-err { display: block; padding: 11px 14px; background: #FDECEA; color: #86201A; border: 1px solid #F1B7B1; border-radius: var(--gs-radius-sm); }
@media (min-width: 640px) { .gs-form__row { grid-template-columns: 1fr 1fr; } }
@media (min-width: 992px) { .gs-contact__grid { grid-template-columns: 5fr 6fr; gap: 56px; align-items: start; } }

/* ==================== TRANG CON (archive/single sản phẩm) ==================== */
.gs-pagehead { padding-block: 40px 34px; background: linear-gradient(170deg, var(--gs-bg-cream) 0%, var(--gs-white) 100%); border-bottom: 1px solid var(--gs-border); }
.gs-pagehead__title { margin: 0; font-size: 28px; line-height: 1.24; font-weight: 800; color: var(--gs-primary); }
.gs-pagehead__title--sm { font-size: 23px; margin-bottom: 12px; }
.gs-pagehead__desc { max-width: 760px; margin: 10px 0 0; color: var(--gs-text-muted); }
@media (min-width: 992px) { .gs-pagehead__title { font-size: 40px; } .gs-pagehead__title--sm { font-size: 27px; } }

.gs-prose { color: var(--gs-text); }
.gs-prose h2 { font-size: 24px; color: var(--gs-primary); margin: 24px 0 10px; }
.gs-prose p { margin: 0 0 14px; line-height: 1.75; }
.gs-prose ul, .gs-prose ol { margin: 0 0 16px; padding-left: 22px; }
.gs-prose img { border-radius: var(--gs-radius); }

.gs-single__grid { display: grid; gap: 28px; align-items: start; }
.gs-single__cover { margin: 0 0 20px; border-radius: var(--gs-radius); overflow: hidden; }
.gs-single__cover img { display: block; width: 100%; height: auto; }
.gs-single__price { margin: 14px 0; font-size: 21px; font-weight: 800; color: var(--gs-accent-text); }
.gs-single__ctas { display: grid; gap: 10px; margin-bottom: 16px; }
.gs-single__note { display: flex; gap: 8px; align-items: flex-start; font-size: 13.5px; color: var(--gs-text-muted); }
.gs-single__note .vs-ico { color: var(--gs-primary-soft); flex: none; margin-top: 2px; }
@media (min-width: 992px) {
  .gs-single__grid--product { grid-template-columns: 1.15fr 1fr; gap: 44px; }
  .gs-single__side { position: sticky; top: calc(var(--vs-header-h, 72px) + 16px); }
}

.gs-specs__list { margin: 0 0 4px; display: grid; gap: 9px; }
.gs-specs__row { display: grid; grid-template-columns: 40% 1fr; gap: 10px; padding-bottom: 9px; border-bottom: 1px solid var(--gs-border); }
.gs-specs__row dt { color: var(--gs-text-muted); font-size: 14px; margin: 0; }
.gs-specs__row dd { margin: 0; font-weight: 600; font-size: 14.5px; }

.gs-pagination { margin-top: 32px; }
.gs-pagination .nav-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.gs-pagination .page-numbers { display: inline-flex; align-items: center; justify-content: center; min-width: 44px; min-height: 44px; padding: 0 12px; border: 1px solid var(--gs-border); border-radius: 10px; background: #fff; color: var(--gs-text); font-weight: 600; text-decoration: none; }
.gs-pagination .page-numbers.current { background: var(--gs-primary); border-color: var(--gs-primary); color: #fff; }

/* =========================================================================
   FOOTER MỚI (2026-09) — namespace riêng gs-precta__ / gs-footer__, không
   chạm .vs-footer* của theme cha. Xanh lá (--gs-primary) cho dải CTA, xanh
   đậm (--gs-primary-dark) cho footer chính — đúng vai trò màu trong brief.
   ========================================================================= */

/* ---------- Pre-footer CTA ---------- */
.gs-precta { background: var(--gs-primary); color: #fff; padding-block: 30px; }
.gs-precta__inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px; }
.gs-precta__text { max-width: 640px; }
.gs-precta .gs-precta__title { margin: 0 0 6px; font-size: 20px; line-height: 1.35; font-weight: 800; color: #fff; }
.gs-precta__desc { margin: 0; font-size: 14.5px; color: rgba(255,255,255,.88); }
.gs-precta__ctas { display: flex; flex-wrap: wrap; gap: 12px; }
/* Chữ tối trên nền cam để đạt WCAG AA (chữ trắng trên cam chỉ ~3.4:1, không đạt
   4.5:1 cho chữ thường) — chỉ ghi đè phạm vi trong .gs-precta, không đụng
   .gs-btn--accent dùng ở nơi khác trên site. */
.gs-precta .gs-btn--accent { color: var(--gs-text); }
.gs-precta .gs-btn--accent:hover { color: var(--gs-text); }
@media (max-width: 639px) {
  .gs-precta__inner { flex-direction: column; align-items: flex-start; }
  .gs-precta__ctas { width: 100%; }
  .gs-precta__ctas .gs-btn { flex: 1 1 auto; justify-content: center; }
}

/* ---------- Footer chính ---------- */
.gs-footer { position: relative; background: var(--gs-primary-dark); color: rgba(255,255,255,.86); font-size: 15px; border-top: 3px solid var(--gs-accent); }
.gs-footer a { color: rgba(255,255,255,.86); text-decoration: none; }
.gs-footer a:hover, .gs-footer a:focus-visible { color: var(--gs-accent); }
.gs-footer__main { padding-block: 52px 36px; }
.gs-footer__grid { display: grid; gap: 40px 28px; grid-template-columns: 1fr; }
/* min-width:0 chặn nội dung dài (đoạn giới thiệu, địa chỉ) tràn ra khỏi cột
   và đè lên cột kế bên trên lưới CSS Grid — lỗi thực tế đã gặp khi QA. */
.gs-footer__col { min-width: 0; }
.gs-footer .gs-footer__heading { position: relative; margin: 0 0 22px; padding-bottom: 12px; font-size: 14.5px; font-weight: 700; color: #fff; text-transform: uppercase; letter-spacing: .06em; }
.gs-footer__heading::after { content: ""; position: absolute; left: 0; bottom: 0; width: 28px; height: 3px; border-radius: 2px; background: var(--gs-accent); }
.gs-footer__logo { display: block; width: 84px; height: 84px; margin-bottom: 18px; border-radius: 50%; box-shadow: 0 6px 18px rgba(0,0,0,.28); }
.gs-footer__logo-text { display: block; margin-bottom: 10px; font-weight: 800; color: #fff; font-size: 16px; }
.gs-footer__intro { margin: 0 0 16px; font-size: 14px; line-height: 1.75; color: rgba(255,255,255,.8); }
.gs-footer__more { display: inline-flex; align-items: center; gap: 6px; font-weight: 700; color: #fff; }
.gs-footer__more .vs-ico { color: var(--gs-accent); transition: transform .2s; }
.gs-footer__more:hover, .gs-footer__more:focus-visible { color: var(--gs-accent); }
.gs-footer__more:hover .vs-ico, .gs-footer__more:focus-visible .vs-ico { transform: translateX(3px); }

.gs-footer__list { margin: 0; padding: 0; list-style: none; display: grid; gap: 13px; }
.gs-footer__list a { display: inline-block; padding-block: 2px; }

.gs-footer__contact { font-style: normal; display: grid; gap: 11px; margin-bottom: 18px; }
.gs-footer__company { display: block; color: #fff; font-size: 16px; letter-spacing: .01em; }
.gs-footer__rep, .gs-footer__mst { display: block; font-size: 13.5px; color: rgba(255,255,255,.72); }
.gs-footer__row { display: flex; align-items: flex-start; gap: 10px; line-height: 1.5; }
.gs-footer__row .vs-ico { flex: none; margin-top: 2px; color: var(--gs-accent); width: 20px; height: 20px; }

.gs-footer__quickbtns { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 6px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.12); }
.gs-footer__qbtn { display: inline-flex; align-items: center; gap: 7px; min-height: 44px; padding: 0 16px; border: 1px solid rgba(255,255,255,.28); border-radius: 999px; background: rgba(255,255,255,.06); color: #fff; font-size: 13.5px; font-weight: 600; box-shadow: 0 1px 4px rgba(0,0,0,.12); transition: background-color .2s, border-color .2s, color .2s, transform .2s; }
.gs-footer__qbtn:hover, .gs-footer__qbtn:focus-visible { background: #fff; color: var(--gs-primary-dark); border-color: #fff; transform: translateY(-1px); }
.gs-footer__qbtn .vs-ico { width: 18px; height: 18px; }
.gs-footer__qbtn svg { flex: none; }

@media (min-width: 640px) { .gs-footer__grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 992px) { .gs-footer__grid { grid-template-columns: 1.1fr 1.2fr 1fr 1.1fr; } .gs-footer__col--brand { max-width: none; } }

/* ---------- Footer bottom ---------- */
.gs-footer__bottom { border-top: 1px solid rgba(255,255,255,.12); }
.gs-footer__bottom-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; padding-block: 16px; font-size: 13px; color: rgba(255,255,255,.62); }
.gs-footer__copyright { margin: 0; }
.gs-footer__bottom-links { display: flex; flex-wrap: wrap; gap: 16px; }
.gs-footer__bottom-links a { color: rgba(255,255,255,.72); }
.gs-footer__bottom-links a:hover, .gs-footer__bottom-links a:focus-visible { color: var(--gs-accent); text-decoration: underline; }

@media (max-width: 639px) {
  .gs-footer__bottom-inner { flex-direction: column; align-items: flex-start; text-align: left; }
}

/* ---------- Hiệu ứng xuất hiện nhẹ ---------- */
@media (prefers-reduced-motion: no-preference) {
  .gs-reveal { opacity: 0; transform: translateY(18px); transition: opacity .5s ease, transform .5s ease; }
  .gs-reveal.is-in { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .greensun *, .greensun *::before, .greensun *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}