/* HT About 1.1 — brand-led, editorial, independently responsive.
 * HT Core is the source of truth; CSS fallbacks only apply if Core is absent.
 */
.htabout-wrap {
  --htabout-primary: var(--ht-primary, #107fc9);
  --htabout-accent: var(--ht-accent, #df1516);
  --htabout-text: var(--ht-text, #424242);
  --htabout-ink: color-mix(in srgb, var(--htabout-primary) 23%, #162438);
  --htabout-muted: color-mix(in srgb, var(--htabout-text) 70%, #a1adba);
  --htabout-soft: color-mix(in srgb, var(--htabout-primary) 4%, #fff);
  --htabout-rule: color-mix(in srgb, var(--htabout-primary) 13%, #fff);
  --htabout-tint: color-mix(in srgb, var(--htabout-primary) 10%, #fff);
  position: relative;
  width: 100vw;
  max-width: 100vw;
  margin-left: calc(50% - 50vw);
  overflow: clip;
  isolation: isolate;
  background: #fff;
  color: var(--htabout-text);
  font-size: 16px;
  line-height: 1.74;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}
.htabout-wrap, .htabout-wrap * { box-sizing: border-box; }
.htabout-wrap a { text-decoration: none; }
.htabout-wrap :focus-visible { outline: 3px solid var(--htabout-accent); outline-offset: 4px; }
.htabout-wrap h1, .htabout-wrap h2, .htabout-wrap h3,
.htabout-wrap p, .htabout-wrap figure { padding: 0; }
.htabout-container { width: min(1250px, calc(100% - 64px)); margin: 0 auto; }
.htabout-wrap h1, .htabout-wrap h2, .htabout-wrap h3 {
  margin-top: 0;
  font-weight: 740;
  color: var(--htabout-ink);
  text-transform: none;
}
.htabout-wrap h2 { font-size: clamp(30px, 3.3vw, 50px); line-height: 1.16; letter-spacing: -.033em; margin: 16px 0 24px; }
.htabout-wrap h3 { font-size: 21px; line-height: 1.32; letter-spacing: -.018em; }
.htabout-kicker {
  display: inline-flex; align-items: center; gap: 12px;
  color: var(--htabout-primary); font-size: 11px; line-height: 1.5;
  letter-spacing: .13em; text-transform: uppercase; font-weight: 800;
}
.htabout-kicker__rule { display: inline-block; width: 24px; height: 2px; background: var(--htabout-accent); }
.htabout-section { padding: clamp(64px, 7.2vw, 112px) 0; }
.htabout-section--soft { background: var(--htabout-soft); }
.htabout-prose p { font-size: 16px; line-height: 1.88; color: var(--htabout-text); margin: 0 0 18px; max-width: 650px; }
.htabout-prose p:last-child { margin-bottom: 0; }

/* Hero — generous two-column, image deliberately substantial. */
.htabout-hero {
  position: relative;
  padding: clamp(30px, 4vw, 58px) 0 clamp(46px, 5vw, 74px);
  background: linear-gradient(134deg, var(--htabout-soft), #fff 68%);
}
.htabout-hero__grid {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.04fr);
  min-height: 510px; gap: clamp(38px, 5vw, 78px); align-items: center;
}
.htabout-hero__content { padding: 24px 0; }
.htabout-hero h1 {
  font-size: clamp(38px, 4.1vw, 60px); line-height: 1.115;
  letter-spacing: -.049em; margin: 23px 0 22px; max-width: 640px;
}
.htabout-hero__lead p { margin: 0; max-width: 600px; color: var(--htabout-text); font-size: clamp(16px, 1.47vw, 19px); line-height: 1.78; }
.htabout-quiet-link {
  display: inline-flex; align-items: center; gap: 17px; margin-top: 30px;
  border-bottom: 1px solid var(--htabout-primary); padding-bottom: 5px;
  color: var(--htabout-primary) !important; font-size: 14px; font-weight: 800;
  transition: gap .18s ease;
}
.htabout-quiet-link:hover { gap: 23px; }
.htabout-quiet-link span { font-size: 17px; }
.htabout-hero__visual { position: relative; min-width: 0; }
.htabout-photo {
  position: relative; margin: 0; width: 100%; overflow: hidden;
  aspect-ratio: 1.18 / 1; min-height: 340px;
  background: var(--htabout-tint);
}
.htabout-photo img { display: block; width: 100%; height: 100%; object-fit: cover; }
.htabout-photo--hero { aspect-ratio: 1.07 / 1; min-height: 420px; border-radius: 2px 70px 2px 2px; }
.htabout-visual-caption {
  display: flex; justify-content: space-between; gap: 10px;
  padding: 12px 2px 0; font-size: 10px; font-weight: 800;
  color: var(--htabout-muted); letter-spacing: .09em;
}
.htabout-visual-caption span { color: var(--htabout-accent); }
/* Visual-only fallback: never invent photographs when none have been supplied. */
.htabout-photo--placeholder {
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: clamp(24px, 4vw, 53px);
  background: linear-gradient(140deg, var(--htabout-tint), color-mix(in srgb, var(--htabout-primary) 22%, #fff));
}
.htabout-photo--placeholder::before, .htabout-photo--placeholder::after {
  content: ''; position: absolute; border: 1px solid color-mix(in srgb, var(--htabout-primary) 30%, transparent);
  width: 68%; aspect-ratio: 1 / 1; border-radius: 50%; pointer-events: none;
}
.htabout-photo--placeholder::before { top: -22%; right: -26%; }
.htabout-photo--placeholder::after { top: -2%; right: -43%; }
.htabout-photo__line { display: block; width: 34px; height: 3px; background: var(--htabout-accent); margin-bottom: 16px; position: relative; z-index: 1; }
.htabout-photo__wordmark { max-width: 340px; color: var(--htabout-primary); font-size: clamp(24px, 2.8vw, 36px); line-height: 1.15; font-weight: 800; letter-spacing: -.035em; position: relative; z-index: 1; }
.htabout-photo__wordmark b { display: block; font-size: 1.35em; letter-spacing: -.055em; }
.htabout-photo__label { display: block; font-size: 11px; font-weight: 800; letter-spacing: .08em; margin-top: 12px; color: var(--htabout-muted); position: relative; z-index: 1; }
.htabout-photo--story { aspect-ratio: 1.03 / 1; }
.htabout-photo--mission { aspect-ratio: 1.27 / 1; }
.htabout-photo--vision { aspect-ratio: 1.24 / 1; }

/* Alternating story, mission and vision image/text. */
.htabout-editorial { display: grid; grid-template-columns: minmax(0, 1.03fr) minmax(0, 1fr); gap: clamp(40px, 6.8vw, 106px); align-items: center; }
.htabout-editorial--reversed { grid-template-columns: minmax(0, 1fr) minmax(0, 1.03fr); }
.htabout-editorial__media, .htabout-editorial__content { min-width: 0; }
.htabout-editorial__content h2 { max-width: 610px; }
.htabout-editorial__content .htabout-button--outline { margin-top: 20px; }
.htabout-story .htabout-editorial__content { padding: 16px 0; }
.htabout-mission .htabout-editorial__content { padding-right: 18px; }
.htabout-vision .htabout-editorial__content { padding-left: 10px; }
.htabout-story .htabout-photo { border-radius: 56px 2px 2px 2px; }
.htabout-mission .htabout-photo { border-radius: 2px 2px 58px 2px; }
.htabout-vision .htabout-photo { border-radius: 2px 56px 2px 2px; }

/* Values feel like editorial columns, not loud sales cards. */
.htabout-section-heading { margin-bottom: 36px; max-width: 790px; }
.htabout-section-heading h2 { margin-bottom: 0; }
.htabout-section-heading p { margin: 15px 0 0; color: var(--htabout-muted); font-size: 16px; max-width: 740px; }
.htabout-values { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--htabout-rule); border-bottom: 1px solid var(--htabout-rule); }
.htabout-value { min-width: 0; padding: 30px 28px 26px; border-right: 1px solid var(--htabout-rule); }
.htabout-value:first-child { padding-left: 0; }
.htabout-value:last-child { border-right: none; padding-right: 0; }
.htabout-value__index { display: inline-block; color: var(--htabout-accent); font-size: 14px; font-weight: 900; margin-bottom: 30px; }
.htabout-value h3 { margin: 0 0 10px; color: var(--htabout-primary); }
.htabout-value p { margin: 0; font-size: 14px; line-height: 1.75; color: var(--htabout-muted); }

/* Scope product sectors to this page: informational, not duplicate category navigation. */
.htabout-ecosystem { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.htabout-ecosystem__item { padding: 29px 26px; border: 1px solid var(--htabout-rule); background: #fff; border-radius: 6px; }
.htabout-ecosystem__dot { display: block; width: 32px; height: 3px; border-radius: 3px; background: var(--htabout-accent); margin-bottom: 22px; }
.htabout-ecosystem__item h3 { margin: 0 0 10px; font-size: 21px; color: var(--htabout-primary); }
.htabout-ecosystem__item p { margin: 0; font-size: 14px; line-height: 1.75; color: var(--htabout-muted); }
.htabout-process { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px; }
.htabout-process__item { border-top: 2px solid var(--htabout-primary); padding: 22px 0 0; }
.htabout-process__num { color: var(--htabout-accent); font-size: 26px; line-height: 1; font-weight: 800; }
.htabout-process__item h3 { margin: 20px 0 10px; }
.htabout-process__item p { margin: 0; font-size: 14px; color: var(--htabout-muted); }

/* Actual media gallery appears only after real images are selected. */
.htabout-gallery { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.htabout-gallery__item { margin: 0; min-width: 0; }
.htabout-gallery__item img { display: block; width: 100%; height: auto; aspect-ratio: 1.1 / 1; object-fit: cover; }
.htabout-gallery__item:nth-child(2) img { aspect-ratio: 1.1 / 1; }
.htabout-gallery__item figcaption { padding: 12px 1px 0; color: var(--htabout-muted); font-size: 13px; line-height: 1.45; }
.htabout-works { overflow: hidden; }

/* Company identity, derived from HT Core data rather than duplicated copy. */
.htabout-legal { border-top: 1px solid var(--htabout-rule); }
.htabout-legal__grid { display: grid; grid-template-columns: minmax(250px, .8fr) minmax(0, 1.2fr); align-items: start; gap: clamp(30px, 6vw, 100px); }
.htabout-legal__grid > div:first-child p { max-width: 360px; margin-top: 0; color: var(--htabout-muted); }
.htabout-company { margin: 0; border-top: 1px solid var(--htabout-rule); }
.htabout-company__row { display: grid; grid-template-columns: 146px minmax(0, 1fr); gap: 26px; padding: 18px 0; border-bottom: 1px solid var(--htabout-rule); }
.htabout-company dt { color: var(--htabout-muted); font-size: 13px; font-weight: 650; }
.htabout-company dd { margin: 0; min-width: 0; overflow-wrap: anywhere; font-weight: 650; color: var(--htabout-text); }
.htabout-company dd a { color: var(--htabout-primary); }

.htabout-cta { padding: 0 0 clamp(72px, 7vw, 112px); }
.htabout-cta__box { display: grid; grid-template-columns: minmax(0, 1.2fr) auto; align-items: center; gap: 52px; padding: clamp(34px, 4vw, 58px); border-top: 3px solid var(--htabout-primary); background: var(--htabout-soft); }
.htabout-cta .htabout-kicker { color: var(--htabout-primary); }
.htabout-cta h2 { margin: 13px 0 10px; font-size: clamp(27px, 2.5vw, 38px); max-width: 760px; }
.htabout-cta p { margin: 0; max-width: 700px; font-size: 15px; color: var(--htabout-muted); }
.htabout-button, .htabout-zalo-button {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 46px; padding: 12px 24px; border-radius: 5px;
  text-decoration: none !important; font-weight: 750; font-size: 14px;
  color: #fff !important; background: var(--htabout-accent);
  border: 1px solid transparent; text-align: center;
  transition: transform .18s ease, background .18s ease;
}
.htabout-button:hover, .htabout-zalo-button:hover { transform: translateY(-2px); color: #fff !important; }
.htabout-button--outline { border-color: var(--htabout-primary); background: transparent; color: var(--htabout-primary) !important; }
.htabout-button--outline:hover { color: var(--htabout-primary) !important; }

/* Backwards compatibility for standalone legacy shortcodes. */
.htabout-card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.htabout-card { display: flex; align-items: flex-start; gap: 12px; border: 1px solid var(--htabout-rule, #e3ebef); padding: 17px; border-radius: 6px; }
.htabout-card__mark { color: var(--htabout-primary, #107fc9); font-weight: 800; }

@media (max-width: 1080px) {
  .htabout-hero__grid { min-height: 430px; gap: 34px; }
  .htabout-hero h1 { font-size: clamp(35px, 4.4vw, 47px); }
  .htabout-editorial { gap: 44px; }
  .htabout-values { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .htabout-value { border-bottom: 1px solid var(--htabout-rule); padding-left: 24px; padding-right: 24px; }
  .htabout-value:nth-child(odd) { padding-left: 0; }
  .htabout-value:nth-child(even) { padding-right: 0; border-right: 0; }
  .htabout-value:nth-last-child(-n+2) { border-bottom: 0; }
}
@media (max-width: 760px) {
  .htabout-container { width: min(100% - 34px, 1250px); }
  .htabout-section { padding: 58px 0; }
  .htabout-wrap h2 { font-size: clamp(29px, 7.7vw, 37px); margin: 12px 0 20px; }
  .htabout-hero { padding: 30px 0 45px; }
  .htabout-hero__grid { display: flex; flex-direction: column; gap: 30px; min-height: 0; align-items: stretch; }
  .htabout-hero__content { padding: 0; }
  .htabout-hero h1 { font-size: clamp(34px, 9vw, 45px); margin: 16px 0 16px; letter-spacing: -.04em; }
  .htabout-hero__lead p { font-size: 16px; line-height: 1.73; }
  .htabout-quiet-link { margin-top: 17px; }
  .htabout-photo--hero { min-height: 0; aspect-ratio: 1.23 / 1; border-radius: 1px 37px 1px 1px; }
  .htabout-visual-caption { font-size: 9px; letter-spacing: .035em; }
  .htabout-editorial, .htabout-editorial--reversed { display: flex; flex-direction: column; gap: 25px; align-items: stretch; }
  .htabout-story .htabout-editorial__media { order: 1; }
  .htabout-story .htabout-editorial__content { order: 2; padding: 0; }
  .htabout-mission .htabout-editorial__content, .htabout-vision .htabout-editorial__content { padding: 0; }
  .htabout-mission .htabout-editorial__content { order: 1; }
  .htabout-mission .htabout-editorial__media { order: 2; }
  .htabout-vision .htabout-editorial__media { order: 1; }
  .htabout-vision .htabout-editorial__content { order: 2; }
  .htabout-photo { min-height: 0; aspect-ratio: 1.34 / 1; }
  .htabout-story .htabout-photo { border-radius: 30px 1px 1px 1px; }
  .htabout-mission .htabout-photo { border-radius: 1px 1px 30px 1px; }
  .htabout-vision .htabout-photo { border-radius: 1px 30px 1px 1px; }
  .htabout-prose p { font-size: 15px; line-height: 1.76; }
  .htabout-values { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .htabout-value { padding: 20px 16px 22px; }
  .htabout-value__index { margin-bottom: 14px; }
  .htabout-value h3 { font-size: 18px; }
  .htabout-value p { font-size: 13px; }
  .htabout-ecosystem { grid-template-columns: 1fr; gap: 10px; }
  .htabout-ecosystem__item { padding: 22px 20px; }
  .htabout-ecosystem__dot { margin-bottom: 14px; }
  .htabout-process { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .htabout-gallery { gap: 12px; grid-template-columns: 1fr 1fr; }
  .htabout-gallery__item:first-child { grid-column: 1 / -1; }
  .htabout-gallery__item:first-child img { aspect-ratio: 1.4 / 1; }
  .htabout-gallery__item img { aspect-ratio: 1 / 1; }
  .htabout-legal__grid { display: block; }
  .htabout-company { margin-top: 26px; }
  .htabout-company__row { grid-template-columns: 95px minmax(0, 1fr); gap: 16px; padding: 15px 0; }
  .htabout-cta { padding: 0 0 calc(95px + env(safe-area-inset-bottom)); }
  .htabout-legal:last-child { padding-bottom: calc(105px + env(safe-area-inset-bottom)); }
  .htabout-cta__box { display: flex; flex-direction: column; align-items: stretch; gap: 24px; padding: 30px 23px; }
  .htabout-cta__action .htabout-button, .htabout-cta__action .htabout-zalo-button { width: 100%; }
  .htabout-card-grid { grid-template-columns: 1fr; }
}
@media (max-width: 390px) {
  .htabout-container { width: min(100% - 28px, 1250px); }
  .htabout-hero h1 { font-size: 33px; }
  .htabout-value { padding-left: 12px; padding-right: 12px; }
  .htabout-value h3 { font-size: 17px; }
  .htabout-company__row { grid-template-columns: 1fr; gap: 4px; }
}
@media (prefers-reduced-motion: reduce) {
  .htabout-quiet-link, .htabout-button, .htabout-zalo-button { transition: none; }
  .htabout-button:hover, .htabout-zalo-button:hover { transform: none; }
}