/* KitoTool About - compact editorial layout */
.about-main {
  --about-panel-radius: 16px;
  --about-panel-shadow: 0 1px 2px rgba(15,23,42,.04), 0 8px 24px rgba(15,23,42,.05);
  min-width: 0;
  padding: 20px var(--container-gutter) 16px;
  color: var(--color-text);
  background: var(--color-bg);
}

.about-page-shell {
  width: 100%;
  max-width: 1152px;
  display: grid;
  gap: 20px;
  margin: 0 auto;
}

.about-main .container {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
}

.about-main h1,
.about-main h2,
.about-main h3,
.about-main p { margin-top: 0; letter-spacing: 0; }

.about-main h1,
.about-main h2,
.about-main h3 { color: var(--color-text); }

.about-main h2 {
  max-width: 780px;
  margin-bottom: 0;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.22;
}

.about-main p {
  color: var(--color-text-secondary);
  line-height: 1.72;
}

.about-kicker,
.mission__eyebrow {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 9px;
  color: var(--color-text-muted);
  font-size: .75rem;
  font-weight: var(--font-semibold);
  line-height: 1.4;
  letter-spacing: 0;
  text-transform: none;
}

.about-kicker::before { display: none; }
.mission__eyebrow svg { width: 15px; height: 15px; color: var(--color-primary); }

.about-heading {
  display: grid;
  justify-items: center;
  gap: 0;
  margin-bottom: 20px;
  text-align: center;
}

.about-heading h2 { margin-inline: auto; }

.about-heading--center { justify-items: center; margin-bottom: 0; text-align: center; }

.about-actions,
.about-support__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.about-btn,
.mission__cta,
.about-build .wtd-process-cta {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 16px;
  color: var(--color-text);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  box-shadow: none;
  font-family: inherit;
  font-size: .82rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0;
  text-decoration: none;
  text-transform: none;
  transition: color 160ms ease, background-color 160ms ease, border-color 160ms ease;
}

.about-btn--primary {
  color: #fff;
  background: #4f46e5;
  border-color: #4f46e5;
}

.about-btn--primary:hover { color: #fff; background: #4338ca; border-color: #4338ca; }
.about-btn--ghost:hover { color: var(--color-primary); border-color: var(--color-primary); }
.about-btn:focus-visible,
.mission__cta:focus-visible,
.about-build .wtd-process-cta:focus-visible {
  outline: 3px solid color-mix(in srgb,var(--color-primary) 28%,transparent);
  outline-offset: 2px;
}

/* Intro */
.about-hero {
  min-height: 0;
  overflow: hidden;
  padding: 0;
  background-color: #f0f7ff;
  background-image: url('../img/herobanner/kitotool-brand-banner-en-v3.webp');
  background-position: center top;
  background-repeat: no-repeat;
  background-size: 100% auto;
  border: 1px solid #d8e2ea;
  border-radius: var(--about-panel-radius);
  box-shadow: var(--about-panel-shadow);
}

.about-hero::before { content: ''; display: block; padding-top: 56.25%; }

html[lang="vi"] .about-hero {
  background-image: url('../img/herobanner/kitotool-brand-banner-vi-v3.webp');
}

.about-hero__grid {
  display: block;
  padding: clamp(34px,4vw,48px);
  background: var(--color-surface);
  border-top: 1px solid #d8e2ea;
}

.about-hero__copy { max-width: 920px; min-width: 0; margin: 0 auto; text-align: center; }
.about-hero__copy > .about-kicker { width: max-content; max-width: 100%; display: flex; margin: 0 auto 9px; justify-content: center; }
.about-hero .about-actions { justify-content: center; }

.about-hero h1 {
  max-width: 900px;
  margin: 0 auto 15px;
  font-size: clamp(2.35rem,4vw,3.25rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: 0;
  text-wrap: balance;
}

.about-hero__copy > p {
  max-width: 820px;
  margin: 0 auto 22px;
  font-size: 1rem;
}

/* Continuous editorial document */
.about-content-stack {
  overflow: hidden;
  background: #fff;
  border: 1px solid #d8e2ea;
  border-radius: var(--about-panel-radius);
  box-shadow: var(--about-panel-shadow);
}

.about-content-stack > .about-section {
  padding: 46px;
  background: transparent;
  border: 0;
  border-top: 1px solid #e2e8f0;
}

.about-content-stack > .about-section:first-child { border-top: 0; }

/* Story */
#our-story { position: relative; scroll-margin-top: 88px; }
#our-story .about-split { display: grid; grid-template-columns: 1fr; justify-items: center; gap: 12px; text-align: center; }
#our-story .about-split > div:first-child { width: 100%; max-width: 820px; }
#our-story .about-split > div:first-child .about-kicker { width: max-content; max-width: 100%; display: flex; margin-inline: auto; justify-content: center; }
#our-story .about-split > div:first-child h2 { margin-inline: auto; }
#our-story .about-split__copy { width: 100%; max-width: 940px; }
#our-story .about-split__copy > p { max-width: 940px; margin: 0 auto; font-size: 1rem; }

.about-category-cloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0;
  width: fit-content;
  max-width: 100%;
  margin: 16px auto 0;
  padding: 9px 13px;
  background: color-mix(in srgb,var(--color-primary) 2%,var(--color-surface));
  border: 1px solid var(--color-border);
  border-radius: 10px;
}

.about-category-cloud a {
  display: inline-flex;
  align-items: center;
  padding: 3px 4px;
  color: var(--color-text-muted);
  background: transparent;
  border: 0;
  border-radius: 5px;
  font-size: .75rem;
  font-weight: 600;
  text-decoration: none;
  transition: color .16s ease,background-color .16s ease;
}

.about-category-cloud a:not(:last-child)::after { margin: 0 7px 0 11px; color: #94a3b8; content: '\00b7'; pointer-events: none; }
.about-category-cloud a:hover { color: var(--color-primary); background: color-mix(in srgb,var(--color-primary) 8%,transparent); }
.about-category-cloud a:focus-visible { color: var(--color-primary); outline: 2px solid color-mix(in srgb,var(--color-primary) 35%,transparent); outline-offset: 1px; }

/* Vision and mission */
.mission-wrapper {
  display: block;
}

.mission__content { min-width: 0; }
.mission__eyebrow { width: max-content; max-width: 100%; display: flex; margin: 0 auto 7px; padding: 0; justify-content: center; background: transparent; border: 0; border-radius: 0; box-shadow: none; text-align: center; }
.mission__title { max-width: 840px; margin: 0 auto 9px; color: var(--color-text); font-size: 1.8rem; font-weight: 700; line-height: 1.24; letter-spacing: 0; text-align: center; text-wrap: balance; }
.mission__desc { max-width: 820px; margin: 0 auto 18px; font-size: .9rem; text-align: center; }
.mission__list { width: 100%; max-width: none; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; margin: 0 0 18px; padding: 0; border: 0; list-style: none; }

.mission__item {
  min-width: 0;
  display: grid;
  grid-template-columns: 30px minmax(0,1fr);
  align-items: start;
  gap: 11px;
  padding: 12px 13px;
  background: color-mix(in srgb,var(--color-primary) 1.5%,var(--color-surface));
  border: 1px solid var(--color-border);
  border-radius: 10px;
  box-shadow: none;
  transition: border-color .16s ease,background-color .16s ease;
}

.mission__item:last-child {
  grid-column: 1 / -1;
  grid-template-columns: 30px minmax(0,1fr) auto;
  align-items: center;
}
.mission__item:hover { transform: none; background: color-mix(in srgb,var(--color-primary) 3%,var(--color-surface)); border-color: color-mix(in srgb,var(--color-primary) 26%,var(--color-border)); box-shadow: none; }
.mission__item-icon { width: 30px; height: 30px; display: grid; place-items: center; color: var(--color-primary); background: #eef2ff; border: 0; border-radius: 6px; box-shadow: none; }
.mission__item-icon svg { width: 16px; height: 16px; }
.mission__item-text { margin: 3px 0 0; color: var(--color-text-secondary); font-size: .86rem; font-weight: 500; line-height: 1.58; }
.mission__cta { width: fit-content; max-width: 100%; height: 36px; margin: 0; padding-inline: 13px; color: var(--color-primary); background: transparent; border-color: color-mix(in srgb,var(--color-primary) 34%,var(--color-border)); white-space: nowrap; }
.mission__cta::before,
.mission__cta::after { display: none; }
.mission__cta:hover { color: #fff; background: var(--color-primary); border-color: var(--color-primary); box-shadow: none; }
.mission__cta svg { flex: 0 0 auto; }

/* Community */
.about-community__intro { display: grid; justify-items: center; gap: 12px; text-align: center; }
.about-community__intro > div { width: 100%; max-width: 780px; }
.about-community__intro .about-kicker { width: max-content; max-width: 100%; display: flex; margin-inline: auto; justify-content: center; }
.about-community__intro h2 { margin-inline: auto; }
.about-community__intro > p { max-width: 900px; margin: 0 auto; font-size: .95rem; }
.about-subheading { margin: 24px auto 12px; color: var(--color-text); font-size: .82rem; font-weight: 700; line-height: 1.5; letter-spacing: 0; text-align: center; text-transform: none; }

.about-audience {
  display: grid;
  grid-template-columns: repeat(4,minmax(0,1fr));
  gap: 12px;
}

.about-audience article {
  min-width: 0;
  display: grid;
  grid-template-columns: 30px minmax(0,1fr);
  align-content: start;
  column-gap: 10px;
  padding: 15px 14px;
  background: color-mix(in srgb,var(--color-primary) 1.5%,var(--color-surface));
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: none;
  transition: transform .16s ease,border-color .16s ease,box-shadow .16s ease;
}

.about-audience article:first-child { border: 1px solid var(--color-border); }
.about-audience article:hover { transform: translateY(-1px); border-color: color-mix(in srgb,var(--color-primary) 28%,var(--color-border)); box-shadow: 0 6px 16px rgba(15,23,42,.06); }
.about-icon { grid-row: 1 / span 2; width: 30px; height: 30px; display: grid; place-items: center; margin: 1px 0 0; color: var(--color-primary); background: #eef2ff; border: 0; border-radius: 6px; }
.about-icon svg { width: 15px; }
.about-audience h3,.about-join h3 { margin: 0 0 5px; font-size: .92rem; font-weight: var(--font-semibold); line-height: 1.35; }
.about-audience p,.about-join p { margin: 0; font-size: .8rem; line-height: 1.58; }

.about-community__promise {
  width: fit-content;
  max-width: 100%;
  display: inline-flex;
  align-items: flex-start;
  gap: 10px;
  margin: 22px auto 0;
  padding: 12px 14px;
  color: var(--color-text);
  background: color-mix(in srgb,#fff1f2 74%,var(--color-surface));
  border: 0;
  border-left: 3px solid #fb7185;
  border-radius: 9px;
}

.about-community__promise > span { width: 18px; height: 18px; flex: 0 0 auto; display: grid; place-items: center; margin-top: 1px; color: #f43f5e; font-size: 1.2rem; font-weight: 800; line-height: 1; }
.about-community__promise p { margin: 0; color: var(--color-text); font-size: .79rem; font-weight: 650; line-height: 1.55; text-align: center; }

/* Product principles */
.about-principles {
  display: grid;
  grid-template-columns: repeat(4,minmax(0,1fr));
  gap: 12px;
}

.about-principles article { min-width: 0; display: grid; grid-template-columns: 28px minmax(0,1fr); grid-template-rows: auto 1fr; align-content: start; column-gap: 10px; padding: 15px; background: color-mix(in srgb,var(--color-primary) 1.5%,var(--color-surface)); border: 1px solid var(--color-border); border-radius: 12px; transition: transform .16s ease,border-color .16s ease,box-shadow .16s ease; }
.about-principles article:first-child { border: 1px solid var(--color-border); }
.about-principles article:hover { transform: translateY(-1px); border-color: color-mix(in srgb,var(--color-primary) 28%,var(--color-border)); box-shadow: 0 6px 16px rgba(15,23,42,.06); }
.about-principles article > span { grid-row: 1 / span 2; width: 28px; height: 28px; display: grid; place-items: center; margin: 0; color: var(--color-primary); background: #eef2ff; border-radius: 6px; font-size: .68rem; font-weight: 700; }
.about-principles h3 { grid-column: 2; margin: 2px 0 6px; font-size: .98rem; font-weight: var(--font-semibold); }
.about-principles p { grid-column: 2; margin: 0; font-size: .82rem; }

/* Process */
.about-build { color: var(--color-text); }
.about-build h2,.about-build h3 { color: var(--color-text); }
.about-build p { color: var(--color-text-secondary); }
.about-build .about-kicker { color: var(--color-text-muted); }
.about-build__grid { display: grid; grid-template-columns: minmax(250px,.68fr) minmax(0,1.32fr); gap: 48px; }
.about-build__intro { position: static; }
.about-build__line { display: none; }

.about-build .wtd-process-cta {
  width: auto;
  height: 44px;
  margin-top: 20px;
  overflow: visible;
  isolation: auto;
  color: var(--color-primary);
  background: transparent;
  border-color: color-mix(in srgb,var(--color-primary) 34%,var(--color-border));
}

.about-build .wtd-process-cta::before,
.about-build .wtd-process-cta::after { display: none; }
.about-build .wtd-process-cta span { color: inherit; font-weight: 700; }
.about-build .wtd-process-cta svg { width: 17px; height: 17px; }
.about-build .wtd-process-cta:hover { color: #fff; background: var(--color-primary); border-color: var(--color-primary); box-shadow: none; }
.about-build .wtd-process-cta:hover span { color: #fff; }

.about-steps { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 0 24px; margin: 0; padding: 0; border-top: 1px solid #e2e8f0; list-style: none; }
.about-steps li { min-width: 0; display: grid; grid-template-columns: 30px minmax(0,1fr); gap: 10px; padding: 16px 0; border-bottom: 1px solid #e2e8f0; }
.about-steps li > span { width: 30px; height: 30px; display: grid; place-items: center; color: var(--color-text-muted); background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 6px; font-size: .68rem; font-weight: 700; }
.about-steps li > span::after { display: none; }
.about-steps h3 { margin: 2px 0 4px; font-size: .91rem; font-weight: var(--font-semibold); }
.about-steps p { margin: 0; font-size: .8rem; }

/* Privacy */
.about-privacy { display: grid; grid-template-columns: 48px minmax(0,1fr); align-items: start; gap: 18px; margin: 0; padding: 22px; background: linear-gradient(135deg,color-mix(in srgb,var(--color-primary) 3%,var(--color-surface)),var(--color-surface)); border: 1px solid var(--color-border); border-radius: 14px; box-shadow: 0 4px 16px rgba(15,23,42,.04); }
.about-privacy__icon { width: 48px; height: 48px; display: grid; place-items: center; color: var(--color-primary); background: #eef2ff; border: 1px solid color-mix(in srgb,var(--color-primary) 16%,var(--color-border)); border-radius: 10px; }
.about-privacy__icon svg { width: 22px; height: 22px; }
.about-privacy > div { min-width: 0; }
.about-privacy .about-kicker { margin-bottom: 5px; }
.about-privacy h2 { font-size: 1.55rem; line-height: 1.28; }
.about-privacy p { max-width: 880px; margin: 9px 0 14px; font-size: .86rem; line-height: 1.65; }
.about-privacy a,.about-join a { color: var(--color-primary); font-size: .8rem; font-weight: 700; text-decoration: none; }
.about-privacy a:hover,.about-join a:hover { text-decoration: underline; text-underline-offset: 3px; }
.about-privacy a { min-height: 36px; display: inline-flex; align-items: center; padding: 0 12px; border: 1px solid color-mix(in srgb,var(--color-primary) 28%,var(--color-border)); border-radius: 8px; transition: color .16s ease,background-color .16s ease,border-color .16s ease; }
.about-privacy a:hover { color: #fff; background: var(--color-primary); border-color: var(--color-primary); text-decoration: none; }
.about-privacy a:focus-visible { outline: 3px solid color-mix(in srgb,var(--color-primary) 25%,transparent); outline-offset: 2px; }

/* Journey */
.about-section--tint { background: transparent !important; }
.about-journey { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 12px; margin: 20px 0 0; }
.about-journey::before { display: none; }
.about-journey article { min-width: 0; display: grid; grid-template-columns: 28px minmax(0,1fr); grid-template-rows: auto 1fr; align-content: start; column-gap: 10px; padding: 15px; text-align: left; background: color-mix(in srgb,var(--color-primary) 1.5%,var(--color-surface)); border: 1px solid var(--color-border); border-radius: 12px; transition: transform .16s ease,border-color .16s ease,box-shadow .16s ease; }
.about-journey article:first-child { border: 1px solid var(--color-border); }
.about-journey article:hover { transform: translateY(-1px); border-color: color-mix(in srgb,var(--color-primary) 28%,var(--color-border)); box-shadow: 0 6px 16px rgba(15,23,42,.06); }
.about-journey article > span { grid-row: 1 / span 2; width: 28px; height: 28px; display: grid; place-items: center; margin: 0; color: var(--color-primary); background: #eef2ff; border: 0; border-radius: 6px; font-size: .7rem; font-weight: 700; }
.about-journey h3 { grid-column: 2; margin: 2px 0 6px; font-size: .95rem; font-weight: var(--font-semibold); }
.about-journey p { grid-column: 2; max-width: none; margin: 0; font-size: .81rem; }

/* Participation */
.about-join { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 12px; }
.about-join article { min-width: 0; display: grid; grid-template-columns: 30px minmax(0,1fr); align-content: start; column-gap: 10px; padding: 15px; background: color-mix(in srgb,var(--color-primary) 1.5%,var(--color-surface)); border: 1px solid var(--color-border); border-radius: 12px; box-shadow: none; transition: transform .16s ease,border-color .16s ease,box-shadow .16s ease; }
.about-join article:first-child { border: 1px solid var(--color-border); }
.about-join article:hover { transform: translateY(-1px); border-color: color-mix(in srgb,var(--color-primary) 28%,var(--color-border)); box-shadow: 0 6px 16px rgba(15,23,42,.06); }
.about-join .about-icon { grid-row: 1 / span 3; }
.about-join p { min-height: 3.2em; margin-bottom: 12px; }
.about-join a { grid-column: 2; }

/* Support and final CTA */
.about-support { padding: 0; border: 0; scroll-margin-top: 96px; }
.about-support__card {
  width: 100%;
  display: grid;
  grid-template-columns: 64px minmax(0,1fr);
  gap: 26px;
  margin: 0;
  padding: clamp(24px,3vw,32px);
  background: var(--color-surface);
  border: 1px solid color-mix(in srgb,#fb7185 18%,var(--color-border));
  border-radius: 20px;
  box-shadow: 0 4px 24px rgba(15,23,42,.055);
}

.about-support__visual {
  position: relative;
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  color: #f43f5e;
  background: linear-gradient(135deg,#fff1f2,#fecdd3);
  border: 1px solid rgba(244,63,94,.12);
  border-radius: 50%;
  isolation: isolate;
}

.about-support__heart { position: relative; z-index: 2; display: grid; place-items: center; }
.about-support__heart svg {
  width: 29px;
  height: 29px;
  fill: rgba(244,63,94,.1);
  filter: drop-shadow(0 2px 4px rgba(244,63,94,.18));
  transform-origin: center;
  animation: about-support-heartbeat 1.25s cubic-bezier(.4,0,.2,1) infinite;
  will-change: transform;
}
.about-support__pulse,
.about-support__visual::after {
  position: absolute;
  z-index: 1;
  inset: 0;
  border: 2px solid rgba(244,63,94,.58);
  border-radius: inherit;
  animation: about-support-pulse 1.8s ease-out infinite;
  content: "";
  pointer-events: none;
}
.about-support__visual::after { animation-delay: .9s; }

@keyframes about-support-pulse {
  0% { opacity: .5; transform: scale(.92); }
  70%,100% { opacity: 0; transform: scale(1.46); }
}

@keyframes about-support-heartbeat {
  0%,60%,100% { transform: scale(1); }
  14% { transform: scale(1.2); }
  28% { transform: scale(.96); }
  42% { transform: scale(1.12); }
}

.about-support__copy { min-width: 0; }
.about-support .about-kicker { margin-bottom: 6px; color: #e11d48; font-size: .71rem; letter-spacing: .055em; text-transform: uppercase; }
.about-support h2 { max-width: 720px; font-size: 1.55rem; line-height: 1.25; }
.about-support p { max-width: 760px; margin: 10px 0 16px; font-size: .88rem; line-height: 1.68; }

.about-support__impact {
  width: fit-content;
  max-width: 100%;
  display: inline-flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 18px;
  padding: 12px 14px;
  color: var(--color-text);
  background: color-mix(in srgb,#fff1f2 74%,var(--color-surface));
  border-left: 3px solid #fb7185;
  border-radius: 9px;
  font-size: .79rem;
  line-height: 1.55;
}

.about-support__impact svg { width: 18px; height: 18px; flex: 0 0 auto; margin-top: 1px; color: #f43f5e; }
.about-support__impact strong { font-weight: 650; }
.about-support__actions { gap: 14px; }
.about-support__button {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 18px;
  color: #fff;
  background: #4f46e5;
  border: 1px solid #4f46e5;
  border-radius: 10px;
  font-family: inherit;
  font-size: .82rem;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 5px 14px rgba(79,70,229,.2);
  transition: transform 160ms ease,background-color 160ms ease,box-shadow 160ms ease;
}

.about-support__button svg { width: 15px; height: 15px; color: #fff; }
.about-support__button:hover { background: #4338ca; border-color: #4338ca; transform: translateY(-1px); box-shadow: 0 8px 18px rgba(79,70,229,.28); }
.about-support__button:focus-visible { outline: 3px solid rgba(244,63,94,.24); outline-offset: 3px; }
.about-support small { color: var(--color-text-muted); font-size: .72rem; }

.about-final { padding: 0 0 38px; }
.about-main .about-final__inner {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 102px;
  display: grid;
  grid-template-columns: 58px minmax(0,1fr) auto;
  align-items: center;
  gap: 20px;
  padding: 18px 22px;
  background: linear-gradient(110deg,color-mix(in srgb,var(--color-primary) 7%,#fff),color-mix(in srgb,#eff6ff 72%,#fff));
  border: 1px solid color-mix(in srgb,var(--color-primary) 24%,var(--color-border));
  border-radius: 16px;
  box-shadow: 0 10px 28px rgba(15,23,42,.06);
}
.about-final__inner::before {
  position: absolute;
  z-index: -1;
  top: -54px;
  right: 19%;
  width: 150px;
  height: 150px;
  background: color-mix(in srgb,var(--color-primary) 7%,transparent);
  border-radius: 50%;
  content: "";
}
.about-final__icon {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg,#7357f6,#327cf4);
  border-radius: 15px;
  box-shadow: 0 8px 18px rgba(79,70,229,.2);
}
.about-final__icon svg { width: 28px; height: 28px; }
.about-final__copy { min-width: 0; }
.about-final h2 { font-size: 1.08rem; line-height: 1.3; }
.about-final p { margin: 5px 0 0; font-size: .84rem; line-height: 1.55; }
.about-final .about-btn { min-width: 156px; border-radius: 10px; box-shadow: 0 7px 16px rgba(79,70,229,.18); }

/* Dark mode */
[data-theme="dark"] .about-main { background: var(--color-bg); }
[data-theme="dark"] .about-content-stack { background: var(--color-surface); border-color: var(--color-border); }
[data-theme="dark"] .about-hero { background-color: var(--color-surface); border-color: var(--color-border); box-shadow: 0 8px 24px rgba(0,0,0,.18); }
[data-theme="dark"] .about-hero__grid { border-top-color: var(--color-border); }
[data-theme="dark"] .about-steps li > span { background: var(--color-bg); border-color: var(--color-border); }
[data-theme="dark"] .about-content-stack > .about-section,
[data-theme="dark"] .about-category-cloud,
[data-theme="dark"] .mission__list,
[data-theme="dark"] .mission__item,
[data-theme="dark"] .about-audience,
[data-theme="dark"] .about-audience article,
[data-theme="dark"] .about-principles,
[data-theme="dark"] .about-principles article,
[data-theme="dark"] .about-steps,
[data-theme="dark"] .about-steps li,
[data-theme="dark"] .about-journey,
[data-theme="dark"] .about-journey article,
[data-theme="dark"] .about-join,
[data-theme="dark"] .about-join article { border-color: var(--color-border); }
[data-theme="dark"] .mission__item-icon,
[data-theme="dark"] .about-icon,
[data-theme="dark"] .about-privacy__icon,
[data-theme="dark"] .about-journey article > span { background: color-mix(in srgb,var(--color-primary) 14%,var(--color-surface)); }
[data-theme="dark"] .about-section--tint { background: transparent !important; }
[data-theme="dark"] .about-btn--ghost { background: transparent; }
[data-theme="dark"] .about-support__card { border-color: color-mix(in srgb,#fb7185 24%,var(--color-border)); box-shadow: 0 8px 30px rgba(0,0,0,.2); }
[data-theme="dark"] .about-support__visual { background: linear-gradient(135deg,rgba(244,63,94,.17),rgba(251,113,133,.26)); border-color: rgba(251,113,133,.22); }
[data-theme="dark"] .about-support__impact { background: color-mix(in srgb,#fb7185 10%,var(--color-bg)); }
[data-theme="dark"] .about-community__promise { background: color-mix(in srgb,#fb7185 10%,var(--color-bg)); }
[data-theme="dark"] .about-support__button { color: #fff; background: #4f46e5; border-color: #4f46e5; }
[data-theme="dark"] .about-support__button:hover { background: #4338ca; border-color: #4338ca; }
[data-theme="dark"] .about-audience article,
[data-theme="dark"] .about-principles article,
[data-theme="dark"] .about-journey article,
[data-theme="dark"] .about-join article { background: color-mix(in srgb,var(--color-surface) 86%,var(--color-bg)); }
[data-theme="dark"] .about-principles article > span { background: color-mix(in srgb,var(--color-primary) 14%,var(--color-surface)); }
[data-theme="dark"] .mission__item { background: color-mix(in srgb,var(--color-surface) 86%,var(--color-bg)); border-color: var(--color-border); }
[data-theme="dark"] .mission__item:hover { background: color-mix(in srgb,var(--color-primary) 7%,var(--color-surface)); border-color: color-mix(in srgb,var(--color-primary) 24%,var(--color-border)); }
[data-theme="dark"] .about-category-cloud { background: color-mix(in srgb,var(--color-primary) 6%,var(--color-surface)); }
[data-theme="dark"] .about-privacy { background: linear-gradient(135deg,color-mix(in srgb,var(--color-primary) 7%,var(--color-surface)),var(--color-surface)); border-color: var(--color-border); box-shadow: none; }
[data-theme="dark"] .about-privacy__icon { background: color-mix(in srgb,var(--color-primary) 14%,var(--color-surface)); border-color: color-mix(in srgb,var(--color-primary) 24%,var(--color-border)); }
[data-theme="dark"] .about-final__inner { background: linear-gradient(110deg,color-mix(in srgb,var(--color-primary) 10%,var(--color-surface)),var(--color-surface)); border-color: color-mix(in srgb,var(--color-primary) 28%,var(--color-border)); box-shadow: none; }

@media (max-width: 960px) {
  .about-hero__grid { padding: 34px; }
  .about-hero h1 { font-size: 2.8rem; }
  .about-content-stack > .about-section { padding: 38px; }
  .about-audience,.about-principles { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .about-build__grid { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 720px) {
  .about-main { padding: 12px var(--container-gutter) 16px; }
  .about-page-shell { gap: 16px; }
  .about-main h2,.mission__title { font-size: 1.65rem; }
  .about-hero { background-size: 100% auto; }
  .about-hero::before { padding-top: 56.25%; }
  .about-hero__grid { padding: 26px 22px; }
  .about-hero h1 { max-width: 560px; margin: 0 auto 15px; font-size: 2.35rem; line-height: 1.1; }
  .about-hero__copy > p { margin-bottom: 20px; font-size: .93rem; }
  .about-content-stack > .about-section { padding: 28px 22px; }
  #our-story .about-category-cloud { row-gap: 7px; padding: 9px 12px; }
  .mission__list { grid-template-columns: 1fr; }
  .mission__item:last-child { grid-column: auto; grid-template-columns: 30px minmax(0,1fr); }
  .mission__item:last-child .mission__cta { grid-column: 2; justify-self: start; margin-top: 3px; }
  .about-audience,.about-principles { grid-template-columns: 1fr; gap: 10px; }
  .about-steps { grid-template-columns: 1fr; }
  .about-privacy { grid-template-columns: 40px minmax(0,1fr); gap: 14px; padding: 18px; border-radius: 12px; }
  .about-privacy__icon { width: 40px; height: 40px; }
  .about-privacy__icon svg { width: 19px; height: 19px; }
  .about-privacy h2 { font-size: 1.38rem; }
  .about-journey,.about-join { grid-template-columns: 1fr; gap: 10px; }
  .about-support__card { grid-template-columns: 52px minmax(0,1fr); gap: 18px; padding: 24px 20px; border-radius: 16px; }
  .about-support__visual { width: 52px; height: 52px; }
  .about-support__heart svg { width: 24px; height: 24px; }
  .about-support h2 { font-size: 1.4rem; }
  .about-support__actions { align-items: flex-start; }
  .about-final { padding: 0 0 28px; }
  .about-main .about-final__inner { min-height: 0; grid-template-columns: 46px minmax(0,1fr); align-items: center; gap: 14px; padding: 17px; border-radius: 14px; }
  .about-final__icon { width: 46px; height: 46px; border-radius: 12px; }
  .about-final__icon svg { width: 23px; height: 23px; }
  .about-final h2 { font-size: 1.08rem; line-height: 1.3; }
  .about-final p { margin-top: 3px; font-size: .79rem; }
  .about-final .about-btn { grid-column: 1 / -1; width: 100%; min-width: 0; min-height: 40px; }
  .arcontactus-widget,
  .alltoll-feedback-dock { display: none; }
}

@media (max-width: 520px) {
  .about-actions { align-items: stretch; flex-direction: column; }
  .about-actions .about-btn { width: 100%; }
  .about-support__card { grid-template-columns: 1fr; gap: 16px; padding: 22px 18px; }
  .about-support__visual { margin-inline: auto; }
  .about-support .about-kicker { width: max-content; max-width: 100%; display: flex; margin: 0 auto 6px; justify-content: center; text-align: center; }
  .about-support__actions { align-items: flex-start; flex-direction: column; gap: 10px; }
  .about-support__button { width: 100%; }
  .about-final { padding-inline: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .about-btn,.mission__cta,.about-build .wtd-process-cta,.about-support__button { transition: none; }
}

/* Vietnamese story: full sample copy with readable paragraph spacing. */
.about-main--compact .about-hero__copy > p { margin-bottom: 16px; }
.about-main--compact #our-story .about-split__copy > p + p { margin-top: 14px; }
.about-main--compact .about-story-copy { max-width: 820px; margin-inline: auto; }
.about-main--compact .about-story-copy p { margin-bottom: 16px; }
.about-main--compact .about-story-copy p:last-child { margin-bottom: 0; }
.about-main--compact .about-task-list {
  display: grid;
  gap: 8px;
  margin: 0 0 20px;
  padding-left: 22px;
  color: var(--color-text-secondary);
  line-height: 1.72;
  list-style: disc;
}
.about-main--compact .about-task-list li::marker { color: var(--color-primary); }
.about-main--compact .about-section-intro { max-width: 820px; margin: 0 auto 24px; text-align: center; }
.about-main--compact .about-section-intro p { margin-bottom: 12px; }
.about-main--compact .about-section-intro p:last-child { margin-bottom: 0; }
.about-main--compact .about-section-intro--closing { margin: 24px auto 0; }
.about-main--compact .about-support .about-kicker { font-size: .8rem; letter-spacing: 0; text-transform: none; }
.about-main--compact .about-support h2 { max-width: 850px; }
.about-main--compact .about-final__inner { grid-template-columns: 58px minmax(0,1fr); }
.about-main--compact .about-final .about-actions { grid-column: 2; }
.about-main--compact .about-final .about-kicker { margin-bottom: 6px; }
.about-main--compact .about-final h2 { font-size: 1.4rem; }
.about-main--compact .about-final p + p { margin-top: 10px; }
.about-main--compact .about-final .about-btn--ghost { box-shadow: none; }

@media (max-width: 720px) {
  .about-main--compact .about-final__inner { grid-template-columns: 46px minmax(0,1fr); }
  .about-main--compact .about-final .about-actions { grid-column: 1 / -1; }
  .about-main--compact .about-final .about-actions .about-btn { flex: 1 1 180px; }
}

/* Vietnamese About page: one compact document card, matching the policy pages. */
.about-main--compact {
  padding: 24px 0 28px;
  background: #f5f8fc;
}

.about-main--compact .about-page-shell { width: min(calc(100% - 28px),var(--container-max)); max-width: var(--container-max); gap: 16px; }
.about-main--compact .about-content-stack { border-color: #e1eaf3; border-radius: 14px; box-shadow: 0 10px 28px rgba(29,64,105,.045); }

.about-main--compact .about-content-stack > .about-hero {
  padding: 0;
  background-color: #f0f7ff;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}
.about-main--compact .about-hero__grid { padding: 28px 32px 26px; }

.about-main--compact .about-ai-summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  margin-bottom: 13px;
}
.about-main--compact .about-ai-summary__link {
  min-height: 35px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 11px;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: .77rem;
  font-weight: 600;
  line-height: 1.25;
  text-decoration: none;
  transition: color .16s ease, border-color .16s ease, background-color .16s ease;
}
.about-main--compact .about-ai-summary__link:hover {
  color: var(--color-primary);
  background: color-mix(in srgb,var(--color-primary) 5%,var(--color-surface));
  border-color: color-mix(in srgb,var(--color-primary) 32%,var(--color-border));
}
.about-main--compact .about-ai-summary__link--kito {
  color: var(--color-primary);
  background: color-mix(in srgb,var(--color-primary) 6%,var(--color-surface));
  border-color: color-mix(in srgb,var(--color-primary) 30%,var(--color-border));
}
.about-main--compact .about-ai-summary__link :is(svg, img) { flex: 0 0 18px; width: 18px; height: 18px; }
.about-main--compact .about-ai-summary__link:focus-visible {
  outline: 3px solid color-mix(in srgb,var(--color-primary) 28%,transparent);
  outline-offset: 2px;
}
.about-main--compact .about-ai-summary__status {
  margin: 0 0 0 3px;
  color: var(--color-text-muted);
  font-size: .77rem;
  line-height: 1.4;
}
.about-main--compact .about-ai-summary__status[hidden] { display: none; }
.about-main--compact .about-ai-summary__manual { flex-basis: 100%; font-size: .77rem; }
.about-main--compact .about-ai-summary__manual[hidden] { display: none; }
.about-main--compact .about-ai-summary__manual summary { width: fit-content; cursor: pointer; }
.about-main--compact .about-ai-summary__manual textarea { display: block; width: min(100%, 780px); min-height: 120px; margin-top: 8px; padding: 10px; resize: vertical; color: var(--color-text); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 8px; font: inherit; line-height: 1.5; }

.about-main--compact .about-hero__copy { max-width: none; }
.about-main--compact .about-hero__copy > .about-kicker { margin: 0 auto 8px; justify-content: center; text-align: center; }
.about-main--compact .about-hero h1 {
  width: 100%;
  max-width: none;
  margin: 0 0 16px;
  padding: 0;
  background: transparent;
  color: var(--color-text);
  font-size: clamp(1.45rem, 2.5vw, 1.9rem);
  font-weight: 700;
  line-height: 1.3;
  text-align: center;
  text-wrap: balance;
}
.about-main--compact .about-hero__copy > p { max-width: none; margin-bottom: 10px; font-size: .95rem; line-height: 1.62; text-align: left; }
.about-main--compact .about-hero .about-actions { gap: 8px; }

.about-main--compact .about-content-stack > .about-section { padding: 25px 32px; }
.about-main--compact #our-story .about-community-pledge {
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}
.about-main--compact #our-story .about-community-pledge p {
  margin: 0 0 10px;
  color: var(--color-text-secondary);
  font-size: .95rem;
  line-height: 1.7;
}
.about-main--compact #our-story .about-community-pledge p:last-child { margin-bottom: 0; }
.about-main--compact #our-story .about-community-pledge a { color: var(--color-primary); text-underline-offset: 3px; }
.about-main--compact .about-content-stack .about-kicker { margin-bottom: 8px; color: #526174; }
.about-main--compact .about-content-stack h2 {
  width: 100%;
  max-width: none;
  margin: 0 0 13px;
  padding: 10px 15px;
  border-radius: 8px;
  background: #087eae;
  color: #fff;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.4;
  text-align: left;
}
.about-main--compact .about-content-stack h2 .about-heading-label {
  color: rgba(255,255,255,.88);
  font-size: .72em;
  font-weight: 600;
}
.about-main--compact .about-content-stack h2 .about-heading-label::after {
  content: "·";
  margin: 0 .65em;
  opacity: .75;
}

.about-main--compact .about-heading { display: block; margin-bottom: 0; text-align: left; }
.about-main--compact .about-heading .about-kicker { width: fit-content; margin-inline: 0; justify-content: flex-start; justify-self: start; }
.about-main--compact #our-story .about-split { justify-items: stretch; gap: 0; text-align: left; }
.about-main--compact #our-story .about-split > div:first-child,
.about-main--compact #our-story .about-split__copy,
.about-main--compact .about-story-copy,
.about-main--compact .about-section-intro { max-width: none; margin-inline: 0; }
.about-main--compact #our-story .about-split > div:first-child .about-kicker { margin-inline: 0; justify-content: flex-start; }
.about-main--compact #our-story .about-split > div:first-child h2 { margin-inline: 0; }
.about-main--compact #our-story .about-split__copy > p,
.about-main--compact #our-story .about-split__copy > p + p { max-width: none; margin: 0 0 10px; text-align: left; }
.about-main--compact .about-story-copy p,
.about-main--compact .about-section-intro p { margin-bottom: 10px; text-align: left; }
.about-main--compact .about-section-intro { margin-bottom: 16px; text-align: left; }
.about-main--compact .about-category-cloud { justify-content: center; margin: 10px auto 0; }
.about-main--compact .about-task-list { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 6px 24px; margin-bottom: 14px; line-height: 1.6; }
.about-main--compact .about-community-support { margin-top: 18px; padding: 17px 19px; border: 1px solid var(--color-border); border-radius: 10px; background: color-mix(in srgb,var(--color-primary) 3%,var(--color-surface)); }
.about-main--compact .about-community-support h3 { margin: 0 0 8px; font-size: 1rem; line-height: 1.4; }
.about-main--compact .about-community-support .about-actions { margin-top: 13px; }
.about-main--compact .about-community-support .about-support__button { min-height: 44px; }
.about-main--compact .about-build__grid { grid-template-columns: 1fr; gap: 0; }
.about-main--compact .about-build__intro { min-width: 0; }
.about-main--compact .about-privacy { display: block; padding: 17px; }
.about-main--compact .about-privacy__icon { display: none; }
.about-main--compact .about-privacy p { max-width: none; margin: 0 0 10px; }
.about-main--compact .about-journey { margin-top: 0; }
.about-main--compact .about-final { padding-bottom: 0; }

[data-theme="dark"] .about-main--compact { background: #101a29; }
[data-theme="dark"] .about-main--compact .about-content-stack { border-color: #31445b; }
[data-theme="dark"] .about-main--compact .about-content-stack > .about-hero { background-color: var(--color-surface); box-shadow: none; }
[data-theme="dark"] .about-main--compact .about-hero h1 { background: transparent; color: var(--color-text); }
[data-theme="dark"] .about-main--compact .about-content-stack .about-kicker { color: #aabbd0; }
[data-theme="dark"] .about-main--compact .about-content-stack h2 { background: #086b96; color: #fff; }
[data-theme="dark"] .about-main--compact .about-btn--ghost { color: #e2e8f0; border-color: #64748b; }

@media (max-width: 720px) {
  .about-main--compact { padding: 14px 0 24px; }
  .about-main--compact .about-page-shell { width: 100%; }
  .about-main--compact .about-content-stack {
    border-right: 0;
    border-left: 0;
    border-radius: 0;
    box-shadow: none;
  }
  .about-main--compact .about-hero__grid { padding: 22px 17px; }
  .about-main--compact .about-ai-summary {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    justify-items: stretch;
    gap: 7px;
  }
  .about-main--compact .about-ai-summary__link {
    min-width: 0;
    width: 100%;
    justify-content: center;
    padding: 6px 7px;
    font-size: .69rem;
    text-align: center;
  }
  .about-main--compact .about-ai-summary__link :is(svg, img) {
    flex-basis: 16px;
    width: 16px;
    height: 16px;
  }
  .about-main--compact .about-ai-summary__link[data-about-ai="gemini"] {
    grid-column: 1 / -1;
    width: min(100%, 186px);
    justify-self: center;
  }
  .about-main--compact .about-ai-summary__status,
  .about-main--compact .about-ai-summary__manual { grid-column: 1 / -1; }
  .about-main--compact .about-content-stack > .about-section { padding: 22px 17px; }
  .about-main--compact .about-content-stack h2 { padding: 9px 11px; font-size: 1rem; }
  .about-main--compact .about-task-list { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .about-main--compact .about-community-support { padding: 14px; }
}

@media (min-width: 992px) {
  .about-main--compact .about-section-intro { max-width: none; margin-inline: 0; text-align: left; }
  .about-main--compact .about-section-intro p { text-align: left; }
  .about-main--compact .about-section-intro--closing,
  .about-main--compact .about-section-intro--closing p { text-align: center; }
}