/* Cache bust: NEXT_PUBLIC_CLUB_CSS_VERSION trong .env */
/* about.css — trang Giới thiệu (/gioi-thieu) */

.about-page {
  background: var(--surface-cream);
  color: var(--text-primary);
}

/* Hero: dùng .hero từ members.css (không có bộ lọc giữa hero và intro) */
.about-page .hero {
  --hero-content-width: min(96%, 40rem);
  --hero-content-band: min(92vw, 50rem);
  min-height: clamp(18rem, 36vw, 27rem);
  overflow: visible;
}

.about-page .hero__split {
  min-height: 100%;
}

.about-page .hero__content {
  padding: clamp(2.75rem, 6vw, 3.75rem) 0 clamp(2.5rem, 4vw, 4.25rem);
}

/* Thảm đỏ: hơi thấp; phần đuôi dưới để intro che (giống trang thành viên) */
.about-page .hero__bottom-banner {
  transform: translateY(40%);
}

.about-page .hero__bottom-banner img {
  width: 100%;
  height: auto;
  display: block;
}

.about-page .hero__tagline {
  max-width: none;
  line-height: 1.3;
  overflow-wrap: normal;
  word-break: keep-all;
  hyphens: none;
  text-wrap: pretty;
}

/* Dòng script: giống mô tả intro (chữ nhỏ, xám đen) */
.about-page .hero__script {
  margin: 0 0 clamp(0.5rem, 1.2vw, 0.75rem);
  font-family: var(--font-sans);
  font-size: clamp(0.78rem, 1.5vw, 0.86rem);
  font-weight: 400;
  font-style: normal;
  line-height: 1.6;
  letter-spacing: normal;
  color: var(--text-muted);
}

.about-page > .hero {
  z-index: 0;
}

.about-intro {
  position: relative;
  z-index: 10;
  isolation: isolate;
}

.about-page > .hero + .about-intro {
  margin-top: clamp(-3.25rem, -6.5vw, -4.75rem);
  padding-top: clamp(2rem, 4vw, 2.85rem);
  border-top: none;
  background: var(--surface-section-white);
}

.about-intro .page-container {
  position: relative;
  z-index: 1;
  padding-inline: var(--container-gutter);
  padding-bottom: clamp(1.5rem, 3vw, 2rem);
}

.about-intro .breadcrumb {
  margin-bottom: clamp(1rem, 2.5vw, 1.5rem);
}

/* ——— Intro ——— */
.about-intro__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(1.25rem, 3vw, 2.5rem);
  align-items: start;
}

.about-intro__media {
  min-width: 0;
}

.about-intro__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 0.35rem;
  display: block;
}

.about-intro__title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.05rem, 1.8vw, 1.35rem);
  font-weight: 900;
  letter-spacing: 0.04em;
  color: var(--brand-red-dark);
}

.about-intro__summary {
  margin: 0 0 1rem;
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.about-intro__highlights {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.about-intro__highlights li {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
}

.about-intro__icon {
  flex: 0 0 2.25rem;
  width: 2.25rem;
  height: 2.25rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: color-mix(in srgb, var(--brand-gold) 22%, #fff);
  color: var(--brand-red-dark);
  font-size: 1rem;
}

.about-intro__label {
  margin: 0 0 0.25rem;
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--brand-red-accent);
}

.about-intro__desc {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--text-muted);
}

/* ——— Values ——— */
.about-values__grid {
  list-style: none;
  margin: clamp(1rem, 2vw, 1.5rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(0.75rem, 1.5vw, 1.1rem);
}

.about-values__card {
  height: 100%;
  padding: clamp(1rem, 2vw, 1.35rem);
  background: var(--surface-card);
  border: 1px solid var(--border-ui);
  border-radius: 0.4rem;
  text-align: center;
}

.about-values__icon {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  margin: 0 auto 0.65rem;
  border-radius: 50%;
  background: color-mix(in srgb, var(--brand-gold) 30%, #fff);
  color: var(--brand-red-dark);
  font-size: 1.15rem;
}

.about-values__card-title {
  margin: 0 0 0.4rem;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--brand-red-dark);
}

.about-values__card-desc {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--text-muted);
}

/* ——— Timeline (căn giữa, nút thắt đánh số) ——— */
.about-timeline .page-container {
  padding-inline: var(--container-gutter);
}

.about-timeline__track {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-start;
  gap: clamp(1.25rem, 2.5vw, 2rem) clamp(0.5rem, 1.2vw, 0.85rem);
  margin-top: clamp(1.25rem, 2.5vw, 1.75rem);
  padding-top: 0.25rem;
}

.about-timeline__line {
  position: absolute;
  top: 1.35rem;
  left: 8%;
  right: 8%;
  height: 3px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--brand-gold) 8%,
    var(--brand-gold) 92%,
    transparent 100%
  );
  z-index: 0;
  pointer-events: none;
}

.about-timeline__item {
  position: relative;
  z-index: 1;
  flex: 1 1 min(9.5rem, 100%);
  max-width: 13.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.about-timeline__knot {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.65rem;
  height: 2.65rem;
  margin: 0 0 clamp(0.65rem, 1.2vw, 0.85rem);
  border-radius: 50%;
  background: var(--brand-red-dark);
  border: 3px solid var(--brand-gold);
  box-shadow:
    0 0 0 2px #fff,
    0 0.15em 0.45em color-mix(in srgb, var(--brand-red-dark) 35%, transparent);
}

.about-timeline__knot-num {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 800;
  line-height: 1;
  color: #fff;
}

.about-timeline__year {
  margin: 0 0 0.4rem;
  font-size: clamp(1.05rem, 2.1vw, 1.35rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--brand-red-accent);
}

.about-timeline__item-title {
  margin: 0 0 0.4rem;
  font-size: clamp(0.8rem, 1.35vw, 0.9rem);
  font-weight: 800;
  line-height: 1.35;
  color: var(--brand-red-dark);
}

.about-timeline__desc {
  margin: 0;
  max-width: 16rem;
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--text-muted);
}

/* ——— Stats (thanh đỏ, icon vòng vàng, số vàng + nhãn trắng) ——— */
.about-stats {
  background: linear-gradient(
    90deg,
    var(--brand-red-dark) 0%,
    color-mix(in srgb, var(--brand-red-dark) 88%, #000) 50%,
    var(--brand-red-dark) 100%
  );
  color: #fff;
  padding: clamp(1.35rem, 3vw, 2rem) 0;
}

.about-stats .page-container {
  padding-inline: var(--container-gutter);
}

.about-stats__grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: clamp(0.75rem, 1.5vw, 1.15rem);
  align-items: stretch;
}

.about-stats__item {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: clamp(0.5rem, 1.1vw, 0.7rem);
  min-width: 0;
  padding: clamp(0.35rem, 0.8vw, 0.5rem);
  text-align: left;
}

.about-stats__icon {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: clamp(2.5rem, 5vw, 3.1rem);
  height: clamp(2.5rem, 5vw, 3.1rem);
  border-radius: 50%;
  border: 2px solid color-mix(in srgb, var(--brand-gold) 75%, #fff 25%);
  background: linear-gradient(
    165deg,
    color-mix(in srgb, var(--brand-red-mid) 90%, #000) 0%,
    var(--brand-red-dark) 55%,
    color-mix(in srgb, var(--brand-red-dark) 90%, #000) 100%
  );
  box-shadow:
    inset 0 0.1em 0.2em color-mix(in srgb, #000 40%, transparent),
    0 0.1em 0.2em color-mix(in srgb, #000 35%, transparent);
}

.about-stats__icon i {
  font-size: clamp(0.95rem, 1.9vw, 1.15rem);
  line-height: 1;
  background: linear-gradient(
    148deg,
    color-mix(in srgb, var(--brand-gold) 75%, #fff9e8) 0%,
    var(--brand-gold) 45%,
    color-mix(in srgb, var(--brand-gold) 85%, #b8860b) 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

@supports not ((-webkit-background-clip: text) or (background-clip: text)) {
  .about-stats__icon i {
    background: none;
    color: var(--brand-gold);
    -webkit-text-fill-color: unset;
  }
}

.about-stats__text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 0.15em;
  min-width: 0;
}

.about-stats__value {
  margin: 0;
  font-size: clamp(1.05rem, 2.2vw, 1.5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: 0.02em;
  color: var(--brand-gold-light);
  text-shadow: 0 0.06em 0.12em color-mix(in srgb, #000 25%, transparent);
}

.about-stats__label {
  margin: 0;
  font-size: clamp(0.62rem, 1vw, 0.75rem);
  font-weight: 600;
  line-height: 1.3;
  color: color-mix(in srgb, #fff 92%, transparent);
}

/* ——— Thư ngỏ Chủ tịch ——— */
.about-president {
  position: relative;
  overflow: hidden;
  background: var(--surface-cream-partners);
  padding: clamp(2rem, 4.5vw, 3rem) 0;
}

/* Watermark: mask từ PNG (nền đen = trong suốt, họa tiết = màu vàng) */
.about-president::before {
  content: "";
  position: absolute;
  top: 50%;
  right: 0;
  width: min(72vw, 38rem);
  height: min(52vw, 22rem);
  max-height: 92%;
  transform: translateY(-50%);
  pointer-events: none;
  z-index: 0;
  opacity: 0.38;
  background: linear-gradient(
    145deg,
    color-mix(in srgb, var(--brand-gold) 88%, #fff9e8) 0%,
    color-mix(in srgb, var(--brand-gold) 65%, var(--brand-red-dark)) 100%
  );
  mask-image: url("/club/images/background-section.webp");
  mask-repeat: no-repeat;
  mask-position: right center;
  mask-size: contain;
  -webkit-mask-image: url("/club/images/background-section.webp");
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-position: right center;
  -webkit-mask-size: contain;
}

.about-president .page-container {
  position: relative;
  z-index: 1;
  padding-inline: var(--container-gutter);
}

.about-president__layout {
  display: grid;
  grid-template-columns: minmax(18rem, 28rem) minmax(0, 1fr);
  gap: clamp(1.75rem, 3.5vw, 2.75rem);
  align-items: start;
  justify-content: center;
  max-width: 76rem;
  margin-inline: auto;
}

.about-president__photo-wrap {
  width: 100%;
  justify-self: end;
}

.about-president__photo {
  width: 100%;
  height: clamp(17rem, 34vw, 22rem);
  aspect-ratio: auto;
  object-fit: cover;
  object-position: center top;
  border-radius: 0.4rem;
  display: block;
  box-shadow: 0 0.35em 1.1em color-mix(in srgb, var(--brand-red-dark) 18%, transparent);
}

.about-president__letter {
  position: relative;
  padding-top: 0.15rem;
}

.about-president__title {
  margin: 0 0 clamp(0.85rem, 1.8vw, 1.1rem);
  font-size: clamp(1rem, 1.85vw, 1.25rem);
  font-weight: 900;
  letter-spacing: 0.05em;
  line-height: 1.25;
  text-transform: uppercase;
  color: var(--brand-red-dark);
}

.about-president__quote {
  position: relative;
  margin: 0 0 clamp(0.85rem, 1.6vw, 1rem);
  padding-left: 1.75rem;
  font-size: clamp(0.92rem, 1.55vw, 1.05rem);
  font-weight: 700;
  line-height: 1.55;
  color: var(--brand-red-accent);
}

.about-president__quote-mark {
  position: absolute;
  left: 0;
  top: -0.15em;
  font-size: 2.75rem;
  line-height: 1;
  font-family: Georgia, 'Times New Roman', serif;
  font-weight: 700;
  color: var(--brand-red-dark);
}

.about-president__paragraph {
  margin: 0 0 0.85rem;
  font-size: clamp(0.82rem, 1.35vw, 0.9rem);
  line-height: 1.7;
  color: var(--text-primary);
}

.about-president__sign {
  margin-top: clamp(0.85rem, 1.8vw, 1.15rem);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.about-president__sign-name {
  font-size: clamp(0.95rem, 1.6vw, 1.08rem);
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--brand-red-dark);
}

.about-president__sign-role {
  font-size: clamp(0.78rem, 1.2vw, 0.86rem);
  line-height: 1.45;
  color: var(--text-primary);
}

/* ——— Board ——— */
.about-board__grid {
  list-style: none;
  margin: clamp(1rem, 2vw, 1.5rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: clamp(0.65rem, 1.2vw, 0.9rem);
}

.about-board__card {
  display: flex;
  flex-direction: column;
  background: var(--surface-card);
  border: 1px solid var(--border-ui);
  border-radius: 0.35rem;
  overflow: hidden;
}

.about-board__photo {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: top center;
  display: block;
}

.about-board__caption {
  padding: 0.5rem 0.4rem 0.65rem;
  text-align: center;
  background: color-mix(in srgb, var(--brand-gold) 18%, #fff);
}

.about-board__name {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--brand-red-dark);
}

.about-board__role {
  margin: 0.15rem 0 0;
  font-size: 0.65rem;
  color: var(--text-muted);
}

/* ——— Benefits (reuse benefit-box from base) ——— */
.about-benefits__layout {
  display: flex;
  align-items: stretch;
  gap: clamp(0.85rem, 2vw, 1.75rem);
}

.about-benefits__grid {
  flex: 1;
  min-width: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(0.55rem, 1.15vw, 0.85rem);
}

/* Chữ benefit-box lớn hơn mặc định base (đặc biệt mobile) */
.about-benefits__grid .benefit-box__title {
  font-size: clamp(0.62rem, 1vw, 0.75rem);
}

.about-benefits__grid .benefit-box__desc {
  font-size: clamp(0.68rem, 1.05vw, 0.8rem);
  line-height: 1.5;
}

/* ——— Activities ——— */
.about-activities__grid {
  list-style: none;
  margin: clamp(1rem, 2vw, 1.5rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: clamp(0.75rem, 1.5vw, 1rem);
}

.about-activities__card {
  margin: 0;
  background: var(--surface-card);
  border: 1px solid var(--border-ui);
  border-radius: 0.35rem;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  height: 100%;
}

.about-activities__link {
  display: block;
  text-decoration: none;
  height: 100%;
}

.about-activities__link:hover .about-activities__card {
  transform: translateY(-0.15rem);
  box-shadow: 0 0.25rem 0.65rem color-mix(in srgb, #000 12%, transparent);
  border-color: color-mix(in srgb, var(--brand-gold) 60%, transparent);
}

.about-activities__image {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
}

.about-activities__caption {
  padding: 0.55rem 0.65rem;
  font-size: 0.78rem;
  font-weight: 600;
  text-align: center;
  color: var(--brand-red-dark);
  transition: color 0.2s ease;
}

.about-activities__link:hover .about-activities__caption {
  color: var(--brand-red-accent);
}

/* ——— CTA (đồng bộ .cta-banner trang chủ — home.css) ——— */
.cta-banner {
  padding-block: clamp(2.25rem, 5.5vw, 4rem);
  background: var(--cta-banner-bg-image, none) top center / cover no-repeat;
}

.cta-banner__box {
  max-width: 48rem;
  margin-inline: auto;
  text-align: center;
}

.cta-banner__eyebrow {
  margin: 0 0 clamp(0.35rem, 1vw, 0.5rem);
  font-size: clamp(0.72rem, 1.25vw, 0.88rem);
  font-weight: 600;
  letter-spacing: 0.12em;
  line-height: 1.3;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--brand-gold-light) 88%, #fff 12%);
}

.cta-banner__title {
  margin: 0 0 clamp(0.45rem, 1.2vw, 0.65rem);
  font-size: clamp(1.05rem, 2.35vw, 1.65rem);
  font-weight: 800;
  letter-spacing: 0.06em;
  line-height: 1.2;
  text-transform: uppercase;
  color: var(--brand-gold);
  text-shadow: 0 0.08em 0.35em color-mix(in srgb, #000 35%, transparent);
}

.cta-banner__tagline {
  margin: 0 auto clamp(1.25rem, 2.8vw, 1.85rem);
  max-width: 36rem;
  font-size: clamp(0.78rem, 1.35vw, 0.95rem);
  font-weight: 400;
  font-style: italic;
  line-height: 1.2;
  color: color-mix(in srgb, var(--brand-gold-soft) 82%, #fff 18%);
}

.cta-banner__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: clamp(0.45rem, 1.5vw, 0.75rem);
}

.cta-banner__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.5rem;
  padding: 0.55em 1.25em 0.5em;
  border-radius: 0.35rem;
  font-size: clamp(0.68rem, 1.05vw, 0.82rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.2;
  text-transform: uppercase;
  text-decoration: none;
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease,
    border-color 0.15s ease,
    background 0.15s ease;
}

.cta-banner__btn--primary {
  color: #1a0f0a;
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--brand-gold) 55%, #fff) 0%,
    var(--brand-gold) 42%,
    color-mix(in srgb, var(--brand-gold) 72%, #a07018) 100%
  );
  border: 1px solid color-mix(in srgb, var(--brand-gold) 60%, #5c3d0a);
  box-shadow:
    0 0.12em 0 color-mix(in srgb, #000 18%, transparent),
    0 0.25em 0.65em color-mix(in srgb, #000 25%, transparent);
}

.cta-banner__btn--primary:hover {
  transform: translateY(-0.06em);
  box-shadow:
    0 0.14em 0 color-mix(in srgb, #000 15%, transparent),
    0 0.35em 0.85em color-mix(in srgb, #000 28%, transparent);
}

.cta-banner__btn--ghost {
  color: var(--brand-gold);
  background: transparent;
  border: 1px solid color-mix(in srgb, var(--brand-gold) 78%, #fff 22%);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--brand-gold) 15%, transparent);
}

.cta-banner__btn--ghost:hover {
  background: color-mix(in srgb, var(--brand-gold) 12%, transparent);
  border-color: var(--brand-gold-light);
}

.cta-banner__btn:focus-visible {
  outline: 2px solid var(--brand-gold-light);
  outline-offset: 3px;
}

/* ——— Responsive trang Giới thiệu ——— */

/* Tablet ngang / laptop nhỏ */
@media (max-width: 1200px) {
  .about-values__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .about-stats__grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: clamp(0.5rem, 1.2vw, 0.85rem);
  }

  .about-stats__icon {
    width: clamp(2.15rem, 4vw, 2.75rem);
    height: clamp(2.15rem, 4vw, 2.75rem);
  }

  .about-stats__icon i {
    font-size: clamp(0.82rem, 1.6vw, 1rem);
  }

  .about-stats__value {
    font-size: clamp(0.92rem, 1.8vw, 1.25rem);
  }

  .about-stats__label {
    font-size: clamp(0.55rem, 0.95vw, 0.68rem);
  }

  .about-timeline__track {
    gap: clamp(1rem, 2vw, 1.5rem) clamp(0.65rem, 1.5vw, 0.85rem);
  }

  .about-timeline__item {
    flex: 1 1 min(9.5rem, 31%);
    max-width: 12.5rem;
  }

  .about-board__grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .about-activities__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* Tablet dọc */
@media (max-width: 992px) {
  .about-page .hero {
    min-height: auto;
  }

  .about-page .hero__content {
    padding: clamp(0.75rem, 2.5vw, 1rem) 0 clamp(0.65rem, 2vw, 0.85rem);
  }

  .about-page .hero__bottom-banner {
    transform: translateY(42%);
  }

  .about-page > .hero + .about-intro {
    margin-top: clamp(0.75rem, 2vw, 1.25rem);
  }

  .about-page .section .page-container,
  .about-intro .page-container,
  .about-timeline .page-container,
  .about-stats .page-container,
  .about-president .page-container {
    padding-inline: clamp(1rem, 4vw, var(--container-gutter));
  }

  .about-intro__layout {
    grid-template-columns: minmax(0, 1fr);
    gap: clamp(1rem, 2.5vw, 1.5rem);
  }

  .about-intro__media {
    max-width: min(100%, 28rem);
    margin-inline: auto;
  }

  .about-values__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .about-stats {
    padding: clamp(1.15rem, 3vw, 1.65rem) 0;
  }

  .about-stats__grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: clamp(0.45rem, 1.1vw, 0.7rem);
  }

  .about-stats__item {
    justify-content: flex-start;
    padding: clamp(0.35rem, 1vw, 0.55rem);
    gap: clamp(0.35rem, 0.9vw, 0.55rem);
  }

  .about-stats__icon {
    width: clamp(1.95rem, 3.6vw, 2.45rem);
    height: clamp(1.95rem, 3.6vw, 2.45rem);
  }

  .about-stats__icon i {
    font-size: clamp(0.75rem, 1.4vw, 0.92rem);
  }

  .about-stats__value {
    font-size: clamp(0.85rem, 1.6vw, 1.1rem);
  }

  .about-stats__label {
    font-size: clamp(0.5rem, 0.9vw, 0.62rem);
    line-height: 1.25;
  }

  .about-timeline__track {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    justify-items: center;
    gap: clamp(1.15rem, 2.5vw, 1.5rem);
    padding-top: 0;
  }

  .about-timeline__line {
    display: none;
  }

  .about-timeline__item {
    flex: none;
    width: 100%;
    max-width: min(100%, 16rem);
  }

  .about-president__layout {
    grid-template-columns: minmax(0, 1fr);
    gap: clamp(1.25rem, 3vw, 1.75rem);
    max-width: 40rem;
  }

  .about-president__photo-wrap {
    max-width: min(100%, 22rem);
    margin-inline: auto;
    justify-self: center;
  }

  .about-president__photo {
    height: clamp(15rem, 42vw, 19rem);
  }

  .about-president::before {
    width: min(85vw, 32rem);
    height: min(48vw, 18rem);
    opacity: 0.32;
  }

  .about-board__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .about-benefits__layout {
    flex-direction: column;
    align-items: stretch;
  }

  .about-benefits__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
  }

  .about-activities__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* Mobile lớn */
@media (max-width: 768px) {
  
  .about-page .hero__title {
    font-size: clamp(1.35rem, 7vw, 1.85rem);
  }

  .about-page .hero__tagline {
    font-size: clamp(0.85rem, 3.8vw, 1.1rem);
  }

  .about-stats__grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0.6rem;
    max-width: none;
    margin-inline: 0;
  }

  .about-stats__item {
    justify-content: flex-start;
    padding: 0.5rem 0.35rem;
    gap: 0.6rem;
  }

  .about-stats__label {
    font-size: clamp(0.62rem, 2.8vw, 0.72rem);
  }

  .about-stats__icon {
    width: 2.5rem;
    height: 2.5rem;
  }

  .about-stats__value {
    font-size: clamp(1rem, 4.2vw, 1.15rem);
  }

  .about-benefits__grid .benefit-box__title {
    font-size: clamp(0.72rem, 3.2vw, 0.88rem);
  }

  .about-benefits__grid .benefit-box__desc {
    font-size: clamp(0.78rem, 3vw, 0.9rem);
  }

  .about-benefits__grid .benefit-box {
    padding: clamp(0.7rem, 2.5vw, 0.9rem) clamp(0.5rem, 2vw, 0.65rem);
  }

  .about-board__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.55rem;
  }

  .about-board__photo {
    aspect-ratio: 3 / 4;
    max-height: 8.5rem;
  }

  .about-timeline__track {
    grid-template-columns: minmax(1, 1fr);
    gap: 1.35rem;
  }

  .about-timeline__item {
    max-width: min(100%, 18rem);
  }

  .about-president__quote {
    padding-left: 1.35rem;
  }

  .about-president__quote-mark {
    font-size: 2.25rem;
  }
}

/* Mobile */
@media (max-width: 640px) {
  .about-values__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .about-timeline__track {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    justify-items: center;
    gap: clamp(1.15rem, 2.5vw, 1.5rem);
    padding-top: 0;
  }

  .about-stats__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.6rem;
    max-width: none;
    margin-inline: 0;
  }
  .about-activities__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .about-page > .hero + .about-intro {
    margin-top: clamp(-2rem, -8vw, -2.75rem);
    padding-top: clamp(1.5rem, 5vw, 2rem);
  }

  .about-intro__title {
    font-size: clamp(0.95rem, 4.5vw, 1.15rem);
  }

  .about-values__grid {
    grid-template-columns: minmax(1, 1fr);
  }

  .about-stats {
    padding: clamp(1rem, 4vw, 1.35rem) clamp(0.65rem, 3vw, 0.85rem);
  }

  .about-stats__grid {
    gap: 0.5rem;
  }

  .about-stats__item {
    padding: 0.45rem 0.2rem;
  }

  .about-stats__label {
    font-size: clamp(0.6rem, 2.6vw, 0.7rem);
    line-height: 1.35;
  }

  .about-benefits__grid .benefit-box__title {
    font-size: clamp(0.75rem, 3.5vw, 0.92rem);
  }

  .about-benefits__grid .benefit-box__desc {
    font-size: clamp(0.8rem, 3.2vw, 0.92rem);
  }

  .about-president {
    padding: clamp(1.5rem, 5vw, 2rem) 0;
  }

  .about-president__title {
    font-size: clamp(0.92rem, 4vw, 1.05rem);
  }

  .about-president__photo {
    height: clamp(14rem, 52vw, 17rem);
  }

  .about-board__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.5rem;
    margin-inline: auto;
  }

  .about-board__photo {
    max-height: 7.5rem;
  }

  .about-board__caption {
    padding: 0.4rem 0.3rem 0.5rem;
  }

  .about-board__name {
    font-size: 0.65rem;
  }

  .about-board__role {
    font-size: 0.58rem;
  }

  .about-benefits__grid,
  .about-activities__grid {
    grid-template-columns: minmax(1, 1fr);
  }

  .about-benefits__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cta-banner {
    padding-block: clamp(1.25rem, 4vw, 1.75rem);
  }

  .cta-banner__box {
    padding-inline: clamp(0.5rem, 3vw, 1rem);
  }

  .cta-banner__title {
    font-size: clamp(0.88rem, 4.2vw, 1.1rem);
    line-height: 1.25;
    letter-spacing: 0.04em;
  }

  .cta-banner__tagline {
    margin-bottom: clamp(0.85rem, 2.2vw, 1.1rem);
    font-size: clamp(0.72rem, 3vw, 0.85rem);
    line-height: 1.4;
  }

  .cta-banner__actions {
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: center;
    gap: 0.55rem;
    width: 100%;
    max-width: min(100%, 24rem);
    margin-inline: auto;
  }

  .cta-banner__btn {
    flex: 1 1 0%;
    width: auto;
    min-height: 2.65rem;
    padding: 0.6em 0.5em;
    font-size: clamp(0.68rem, 3vw, 0.78rem);
    letter-spacing: 0.02em;
    white-space: nowrap;
    text-align: center;
  }
}

@media (max-width: 480px) {

  .about-board__photo {
    max-height: 6.75rem;
  }

  .about-benefits__grid {
    grid-template-columns: minmax(1, 1fr);
  }

  .about-stats__grid {
    gap: 0.5rem;
  }

  .about-stats__icon {
    width: 2.45rem;
    height: 2.45rem;
  }

  .about-stats__icon i {
    font-size: 0.9rem;
  }
}