/* ============================================================
 * Cocomask - Page Giới Thiệu (gioi-thieu)
 * BEM .gt-* prefix. Adapted from cocomask.html mockup.
 * ============================================================ */
:root {
  --gt-brand-50: #f5faf7;
  --gt-brand-100: #e0f0e6;
  --gt-brand-200: #c2e3ce;
  --gt-brand-300: #95cdab;
  --gt-brand-400: #5fb085;
  --gt-brand-500: #007251;
  --gt-brand-600: #005b41;
  --gt-brand-700: #004a35;
  --gt-brand-800: #003a2a;
  --gt-brand-900: #002e20;
  --gt-brand-cream: #fafaf6;
  --gt-brand-sand: #ede0bd;
  --gt-brand-accent: #d4af37;
  --gt-brand-accent-light: #ecd380;
  --gt-text: #475569;
  --gt-text-muted: #94a3b8;
  --gt-radius-lg: 32px;
  --gt-radius-md: 24px;
  --gt-radius-sm: 16px;
  --gt-font-serif: "Inter", "Be Vietnam Pro", sans-serif;
}

.gt-landing {
  font-family: "Inter", "Be Vietnam Pro", sans-serif;
  color: var(--gt-text);
  line-height: 1.6;
}
.gt-landing .wrap-content {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}
.gt-landing img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ========== Generic section ========== */
.gt-section {
  position: relative;
  padding: 56px 0;
  overflow: hidden;
}
@media (min-width: 768px) {
  .gt-section {
    padding: 84px 0;
  }
}
.gt-section__head {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}
.gt-section__head--center {
  align-items: center;
  text-align: center;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}
.gt-section__label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gt-brand-500);
}
.gt-section__title {
  font-family: var(--gt-font-serif);
  font-weight: 700;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.15;
  color: var(--gt-brand-700);
  margin: 0;
}
.gt-section__tagline {
  font-family: var(--gt-font-serif);
  font-size: 22px;
  font-style: italic;
  font-weight: 600;
  margin: 8px 0 4px;
}
.gt-section__desc {
  color: var(--gt-text);
  font-size: 16px;
  font-weight: 300;
  max-width: 720px;
}
.gt-section__head--center .gt-section__desc {
  margin-left: auto;
  margin-right: auto;
}

/* ========== Helpers ========== */
.gt-bar {
  display: block;
  width: 80px;
  height: 4px;
  background: var(--gt-brand-500);
  border-radius: 2px;
}
.gt-bar--gold {
  background: var(--gt-brand-accent);
  height: 4px;
  width: 64px;
}
.gt-bar--center {
  margin: 8px auto;
}
.gt-gradient-gold,
.gt-hero__title span {
  background: linear-gradient(135deg, #b8972f 0%, #ecd380 50%, #b8972f 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.gt-hero__title span {
  display: block;
  white-space: nowrap;
}
.gt-rich {
  font-size: 15px;
}
.gt-rich p {
  margin: 0 0 16px;
  font-size: 15px;
  font-weight: 300;
  line-height: 1.75;
}
.gt-rich li {
  font-size: 15px;
}
.gt-rich p:last-child {
  margin-bottom: 0;
}
.gt-rich strong {
  color: var(--gt-brand-700);
  font-weight: 600;
}

.gt-row {
  display: grid;
  gap: 48px;
  align-items: center;
}
@media (min-width: 1024px) {
  .gt-row--split {
    grid-template-columns: 1fr 1fr;
    gap: 64px;
  }
}
.gt-row__text {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.gt-row__text--narrow {
  max-width: 420px;
}
.gt-row__visual {
  position: relative;
}
.gt-row__visual--wide {
  width: 100%;
}

/* ========== Section 1: Hero ========== */
.gt-hero {
  position: relative;
  background-color: var(--gt-brand-cream);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding: 84px 0 56px;
  overflow: hidden;
}
.gt-hero__overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0.96) 0%,
    rgba(255, 255, 255, 0.92) 30%,
    rgba(255, 255, 255, 0.6) 55%,
    rgba(255, 255, 255, 0) 75%
  );
  z-index: 1;
}
.gt-hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
  width: 100%;
}
@media (min-width: 1024px) {
  .gt-hero__inner {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
  }
}
@media (min-width: 1280px) {
  .gt-hero__inner {
    grid-template-columns: minmax(0, 9fr) minmax(0, 3fr);
  }
}
.gt-hero__content {
  display: flex;
  flex-direction: column;
  gap: 28px;
  align-items: flex-start;
  text-align: left;
  max-width: 900px;
}
.gt-hero__spacer {
  min-height: 320px;
}
.gt-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--gt-brand-100);
  border: 1px solid var(--gt-brand-200);
  padding: 8px 20px;
  border-radius: 999px;
}
.gt-badge__dot {
  width: 8px;
  height: 8px;
  background: var(--gt-brand-accent);
  border-radius: 50%;
  animation: gt-pulse 2s infinite;
}
.gt-badge span:last-child {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--gt-brand-700);
}
.gt-hero__title {
  font-family: var(--gt-font-serif);
  font-size: clamp(36px, 4.6vw, 64px);
  font-weight: 700;
  line-height: 1.15;
  color: var(--gt-brand-700);
  margin: 0;
  letter-spacing: -0.015em;
}
.gt-hero__desc {
  font-size: clamp(15px, 1.3vw, 18px);
  font-weight: 300;
  color: var(--gt-text);
  max-width: 640px;
  margin: 0;
  line-height: 1.7;
}
.gt-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding: 24px 0;
  border-top: 1px solid rgba(194, 227, 206, 0.5);
  border-bottom: 1px solid rgba(194, 227, 206, 0.5);
  max-width: 520px;
  width: 100%;
}
.gt-hero__stat-value {
  display: block;
  font-family: var(--gt-font-serif);
  font-size: 24px;
  font-weight: 700;
  color: var(--gt-brand-700);
}
.gt-hero__stat-label {
  font-size: 11px;
  color: var(--gt-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 4px;
  display: block;
}
@media (max-width: 1023px) {
  .gt-hero__overlay {
    background: linear-gradient(
      to bottom,
      rgba(255, 255, 255, 0.94) 0%,
      rgba(255, 255, 255, 0.85) 60%,
      rgba(255, 255, 255, 0.5) 100%
    );
  }
  .gt-hero__spacer {
    display: none;
  }
}

/* ========== Section 2: Khởi Nguồn ========== */
.gt-khoi-nguon {
  background: #ffffff;
}
.gt-map-card {
  position: relative;
  border-radius: 36px;
  overflow: hidden;
  background: var(--gt-brand-800);
  color: #fff;
  padding: 32px;
  min-height: 440px;
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
}
.gt-map-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 24px;
}
.gt-map-card--photo {
  background: transparent;
  padding: 0;
  min-height: 0;
  box-shadow: none;
  border-radius: 24px;
}
.gt-map-card--photo img {
  height: auto;
  border-radius: 24px;
}
.gt-map-card__inner {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
}
.gt-map-card__chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(0, 74, 53, 0.6);
  border: 1px solid rgba(0, 114, 81, 0.4);
  border-radius: 999px;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--gt-brand-100);
  font-weight: 700;
  align-self: flex-start;
}
.gt-map-card__chip-dot {
  width: 6px;
  height: 6px;
  background: var(--gt-brand-accent);
  border-radius: 50%;
  animation: gt-pulse 1.5s infinite;
}
.gt-map-card__title {
  font-family: var(--gt-font-serif);
  font-size: 36px;
  font-weight: 700;
  color: #fff;
  margin: 0;
  line-height: 1.1;
}
.gt-map-card__desc {
  font-size: 14px;
  color: var(--gt-brand-100);
  font-weight: 300;
  line-height: 1.7;
}
.gt-map-card__pin {
  margin-top: 16px;
  padding: 16px;
  background: rgba(0, 46, 32, 0.8);
  border: 1px solid rgba(0, 74, 53, 0.6);
  border-radius: 18px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.gt-map-card__pin > i {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(212, 175, 55, 0.15);
  border: 1px solid var(--gt-brand-accent);
  border-radius: 50%;
  color: var(--gt-brand-accent);
}
.gt-map-card__pin-label {
  font-size: 10px;
  font-weight: 700;
  color: var(--gt-brand-accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin: 0;
}
.gt-map-card__pin-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin: 4px 0 0;
}
.gt-map-card__pin-note {
  font-size: 11px;
  color: var(--gt-brand-200);
  margin: 4px 0 0;
  font-weight: 300;
}

.gt-quote {
  padding: 24px;
  background: var(--gt-brand-50);
  border-left: 4px solid var(--gt-brand-500);
  border-radius: 16px;
  margin: 0;
}
.gt-quote p {
  font-family: var(--gt-font-serif);
  font-style: italic;
  font-size: 16px;
  color: var(--gt-brand-700);
  margin: 0;
  line-height: 1.6;
}
.gt-quote cite {
  display: block;
  margin-top: 12px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gt-text-muted);
  font-style: normal;
}

/* ========== Section 3: Triết Lý ========== */
.gt-triet-ly {
  background: var(--gt-brand-cream);
}
.gt-pillar-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 1024px) {
  .gt-pillar-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.gt-pillar-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--gt-brand-100);
  border-radius: 32px;
  padding: 36px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
  transition: all 0.4s ease;
  overflow: hidden;
}
.gt-pillar-card:hover {
  box-shadow: 0 24px 40px -10px rgba(0, 0, 0, 0.12);
  transform: translateY(-6px);
}
.gt-pillar-card > *:not(.gt-pillar-card__corner) {
  position: relative;
  z-index: 1;
}
.gt-pillar-card .gt-pillar-card__corner {
  position: absolute;
  top: 0;
  right: 0;
  width: 128px;
  height: 128px;
  background: var(--gt-brand-50);
  border-bottom-left-radius: 100px;
  transition: transform 0.5s ease;
  z-index: 0;
  margin: 0;
}
.gt-pillar-card:hover .gt-pillar-card__corner {
  transform: scale(1.1);
}
.gt-pillar-card__icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--gt-brand-500);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  font-size: 22px;
  box-shadow: 0 8px 18px rgba(0, 114, 81, 0.25);
  transition: transform 0.3s ease;
}
.gt-pillar-card__icon img {
  width: 28px;
  height: 28px;
}
.gt-pillar-card:hover .gt-pillar-card__icon {
  transform: scale(1.1);
}
.gt-pillar-card__num {
  display: block;
  font-family: var(--gt-font-serif);
  font-size: 28px;
  font-weight: 800;
  color: var(--gt-brand-accent);
  opacity: 0.45;
  margin-bottom: 8px;
}
.gt-pillar-card__title {
  font-family: var(--gt-font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--gt-brand-700);
  margin: 0 0 14px;
}
.gt-pillar-card__desc {
  font-size: 15px;
  color: var(--gt-text-muted);
  font-weight: 300;
  line-height: 1.7;
  margin: 0;
}
.gt-pillar-card__line {
  width: 48px;
  height: 4px;
  background: var(--gt-brand-500);
  border-radius: 2px;
  margin-top: 28px;
  transition: width 0.4s ease;
}
.gt-pillar-card:hover .gt-pillar-card__line {
  width: 100%;
}

.gt-quote-panel {
  margin: 56px auto 0;
  max-width: 720px;
  background: var(--gt-brand-600);
  color: #fff;
  border-radius: 24px;
  padding: 32px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 30px -10px rgba(0, 91, 65, 0.3);
}
.gt-quote-panel__mark {
  font-size: 28px;
  color: var(--gt-brand-accent);
  opacity: 0.55;
  margin-bottom: 16px;
}
.gt-quote-panel p {
  font-size: 16px;
  font-style: italic;
  font-weight: 300;
  line-height: 1.7;
  color: var(--gt-brand-50);
  margin: 0;
}

/* ========== Section 4: Công Nghệ ========== */
.gt-cong-nghe {
  background: #fff;
}
.gt-advantage-list {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.gt-advantage {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.gt-advantage__icon {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--gt-brand-100);
  color: var(--gt-brand-600);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 14px;
  margin-top: 2px;
}
.gt-advantage__title {
  font-size: 15px;
  font-weight: 600;
  color: var(--gt-brand-700);
  margin: 0;
}
.gt-advantage__desc {
  font-size: 14px;
  color: var(--gt-text-muted);
  margin: 4px 0 0;
  line-height: 1.6;
}

.gt-tech-photo {
  border-radius: 32px;
  overflow: hidden;
  background: linear-gradient(
    135deg,
    var(--gt-brand-cream) 0%,
    var(--gt-brand-sand) 100%
  );
  border: 1px solid var(--gt-brand-200);
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 24px 48px -16px rgba(0, 91, 65, 0.18);
}
.gt-tech-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.gt-tech-photo__placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  color: var(--gt-brand-500);
  opacity: 0.6;
}
.gt-tech-photo__placeholder i {
  font-size: 80px;
}
.gt-tech-photo__placeholder span {
  font-family: var(--gt-font-serif);
  font-size: 18px;
  font-weight: 600;
}

/* ========== Section 5: Tiêu Chuẩn ========== */
.gt-tieu-chuan {
  background: var(--gt-brand-cream);
}
.gt-cert-bento {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
@media (min-width: 640px) {
  .gt-cert-bento {
    grid-template-columns: 1fr 1fr;
  }
}
.gt-cert-card {
  background: #fff;
  border: 1px solid rgba(224, 240, 230, 0.8);
  border-radius: 28px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  transition: box-shadow 0.3s;
}
.gt-cert-card:hover {
  box-shadow: 0 16px 28px rgba(0, 0, 0, 0.1);
}
.gt-cert-card--large {
  grid-column: 1 / -1;
}
.gt-cert-card--gold {
  background: linear-gradient(135deg, #fdfbf7 0%, var(--gt-brand-sand) 100%);
  box-shadow: 0 12px 24px rgba(212, 175, 55, 0.18);
}
.gt-cert-card--dark {
  background: var(--gt-brand-900);
  color: #fff;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}
.gt-cert-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--gt-brand-50);
  color: var(--gt-brand-500);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}
.gt-cert-card--gold .gt-cert-card__icon {
  background: var(--gt-brand-800);
  color: var(--gt-brand-accent);
  width: 56px;
  height: 56px;
  font-size: 26px;
}
.gt-cert-card--dark .gt-cert-card__icon {
  background: var(--gt-brand-800);
  color: var(--gt-brand-accent);
}
.gt-cert-card__title {
  font-family: var(--gt-font-serif);
  font-weight: 700;
  font-size: 18px;
  color: var(--gt-brand-700);
  margin: 0 0 6px;
}
.gt-cert-card--gold .gt-cert-card__title {
  color: var(--gt-brand-900);
  font-size: 22px;
}
.gt-cert-card--dark .gt-cert-card__title {
  color: var(--gt-brand-100);
  font-size: 16px;
}
.gt-cert-card__desc {
  font-size: 14px;
  color: var(--gt-text-muted);
  font-weight: 300;
  line-height: 1.7;
  margin: 0;
}
.gt-cert-card--gold .gt-cert-card__desc {
  font-size: 15px;
  color: var(--gt-brand-800);
}
.gt-cert-card--dark .gt-cert-card__desc {
  color: var(--gt-brand-300);
}

.gt-callout {
  background: #fff;
  border: 1px solid var(--gt-brand-200);
  border-radius: 16px;
  padding: 20px;
  display: flex;
  gap: 16px;
  align-items: center;
}
.gt-callout__icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gt-brand-100);
  color: var(--gt-brand-600);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 20px;
}
.gt-callout__text {
  font-size: 14px;
  color: var(--gt-brand-700);
  font-weight: 500;
  line-height: 1.6;
}

/* ========== Section 6: Tầm Nhìn & Sứ Mệnh ========== */
.gt-tam-nhin {
  background: #fff;
}
.gt-vm-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
@media (min-width: 1024px) {
  .gt-vm-grid {
    grid-template-columns: 1fr 1fr;
  }
}
.gt-vm {
  position: relative;
  border-radius: 32px;
  padding: 40px;
  overflow: hidden;
  box-shadow: 0 16px 32px -8px rgba(0, 0, 0, 0.12);
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.gt-vm--vision {
  background: var(--gt-brand-600);
  color: #fff;
  border-bottom: 4px solid var(--gt-brand-accent);
}
.gt-vm--mission {
  background: var(--gt-brand-cream);
  border: 1px solid var(--gt-brand-200);
}
.gt-vm__icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--gt-brand-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}
.gt-vm__icon--green {
  background: var(--gt-brand-500);
}
.gt-vm__title {
  font-family: var(--gt-font-serif);
  font-size: 26px;
  font-weight: 700;
  margin: 0;
}
.gt-vm--vision .gt-vm__title {
  color: var(--gt-brand-accent);
}
.gt-vm--mission .gt-vm__title {
  color: var(--gt-brand-700);
}
.gt-vm__body {
  font-size: 15px;
}
.gt-vm__body p {
  margin: 0 0 12px;
  font-size: 15px;
  font-weight: 300;
  line-height: 1.7;
}
.gt-vm__body li {
  font-size: 15px;
}
.gt-vm--vision .gt-vm__body p {
  color: var(--gt-brand-50);
}
.gt-vm__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.gt-vm__list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 15px;
  font-weight: 300;
  color: var(--gt-text);
  line-height: 1.6;
}
.gt-vm__list li i {
  color: var(--gt-brand-500);
  flex-shrink: 0;
  margin-top: 4px;
}
.gt-vm__footer {
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}
.gt-vm--vision .gt-vm__footer {
  border-top-color: rgba(255, 255, 255, 0.1);
  color: var(--gt-brand-200);
}
.gt-vm--mission .gt-vm__footer {
  border-top-color: var(--gt-brand-200);
  color: var(--gt-brand-600);
}

/* ========== Section 7: Giá Trị Cốt Lõi ========== */
.gt-gia-tri {
  background: var(--gt-brand-cream);
}
.gt-tabs {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 16px;
}
.gt-tabs__btn {
  width: 100%;
  text-align: left;
  padding: 16px 20px;
  background: transparent;
  border: none;
  border-left: 4px solid transparent;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  color: var(--gt-text);
  cursor: pointer;
  transition: all 0.25s ease;
  font-family: inherit;
}
.gt-tabs__btn:hover {
  background: rgba(255, 255, 255, 0.5);
  color: var(--gt-brand-700);
}
.gt-tabs__btn.is-active {
  background: #fff;
  border-left-color: var(--gt-brand-500);
  color: var(--gt-brand-700);
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}
.gt-tabs__pane-wrap {
  background: #fff;
  border: 1px solid var(--gt-brand-100);
  border-radius: 24px;
  padding: 40px;
  min-height: 360px;
  box-shadow: 0 12px 28px -8px rgba(0, 0, 0, 0.08);
}
.gt-tabs__pane {
  display: none;
  flex-direction: column;
  gap: 16px;
  height: 100%;
}
.gt-tabs__pane.is-active {
  display: flex;
}
.gt-tabs__head {
  display: flex;
  align-items: center;
  gap: 14px;
}
.gt-tabs__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--gt-brand-50);
  color: var(--gt-brand-500);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}
.gt-tabs__head h3 {
  font-family: var(--gt-font-serif);
  font-size: 24px;
  font-weight: 700;
  color: var(--gt-brand-700);
  margin: 0;
}
.gt-tabs__body {
  color: var(--gt-text);
  font-weight: 300;
  font-size: 15px;
  line-height: 1.7;
  flex: 1;
}
.gt-tabs__body p {
  margin: 0 0 12px;
}
.gt-tabs__body p:last-child {
  margin-bottom: 0;
}
.gt-tabs__body ul,
.gt-tabs__body ol {
  padding-left: 20px;
  margin: 12px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.gt-tabs__body li {
  font-size: 15px;
  font-weight: 300;
  line-height: 1.65;
}
.gt-tabs__body strong {
  color: var(--gt-brand-700);
  font-weight: 600;
}
.gt-tabs__body a {
  color: var(--gt-brand-500);
}
.gt-tabs__footer {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--gt-brand-100);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: var(--gt-text-muted);
}
.gt-tabs__footer-mark {
  font-family: var(--gt-font-serif);
  font-weight: 700;
  color: var(--gt-brand-700);
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

/* ========== Section 8: Hành Trình ========== */
.gt-hanh-trinh {
  background: #fff;
}
.gt-journey-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 40px;
}
@media (min-width: 768px) {
  .gt-journey-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .gt-journey-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}
.gt-journey-card {
  background: #f7f7f7;
  border: 1px solid var(--gt-brand-100);
  border-radius: 24px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: box-shadow 0.3s;
}
.gt-journey-card:hover {
  box-shadow: 0 16px 30px -10px rgba(0, 0, 0, 0.12);
}
.gt-journey-card__num {
  font-family: var(--gt-font-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--gt-brand-accent);
  opacity: 0.6;
}
.gt-journey-card__title {
  font-family: var(--gt-font-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--gt-brand-700);
  margin: 0;
}
.gt-journey-card__desc {
  font-size: 14px;
  color: var(--gt-text-muted);
  font-weight: 300;
  line-height: 1.7;
  margin: 0;
}

.gt-journey-banner {
  margin-top: 56px;
  padding: 48px;
  background: linear-gradient(
    135deg,
    var(--gt-brand-600) 0%,
    var(--gt-brand-900) 100%
  );
  color: #fff;
  border-radius: 32px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 24px 48px -12px rgba(0, 46, 32, 0.4);
}
.gt-journey-banner::before,
.gt-journey-banner::after {
  content: "";
  position: absolute;
  width: 240px;
  height: 240px;
  background: rgba(212, 175, 55, 0.1);
  border-radius: 50%;
  filter: blur(40px);
  pointer-events: none;
}
.gt-journey-banner::before {
  top: -80px;
  left: -80px;
}
.gt-journey-banner::after {
  bottom: -80px;
  right: -80px;
}
.gt-journey-banner__title {
  font-family: var(--gt-font-serif);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  color: var(--gt-brand-accent);
  margin: 0 0 16px;
  position: relative;
  z-index: 1;
}
.gt-journey-banner__desc {
  font-size: 15px;
  font-weight: 300;
  color: var(--gt-brand-50);
  line-height: 1.75;
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* ========== Animations ========== */
@keyframes gt-pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.6;
    transform: scale(1.15);
  }
}

/* ========== Responsive tweaks ========== */
@media (max-width: 1023px) {
  .gt-hero__title {
    font-size: 36px;
  }
  .gt-cert-card--dark {
    flex-direction: column;
    align-items: flex-start;
  }
  .gt-row--split {
    gap: 32px;
  }
}