/* ==========================================================================
   TDD Homepage Sections
   ========================================================================== */

.tdd-home {
  --tdd-primary: #1e40a0;
  --tdd-accent: #f7a823;
  --tdd-dark: #0b2253;
  --tdd-text: #3a4766;
  --tdd-muted: #8b93a7;
  --tdd-light: #f1f3f2;
  --tdd-card: #f2f4f3;
  --tdd-soft: #eef3fc;
  --tdd-radius: 16px;
  --tdd-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --tdd-ease-io: cubic-bezier(0.65, 0, 0.35, 1);

  color: var(--tdd-text);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}

.tdd-home *,
.tdd-home *::before,
.tdd-home *::after {
  box-sizing: border-box;
}

.tdd-home img {
  max-width: 100%;
  height: auto;
  display: block;
  border: 0;
}
.tdd-home a {
  text-decoration: none;
  color: inherit;
  transition: color 0.3s;
}
.tdd-home h1,
.tdd-home h2,
.tdd-home h3,
.tdd-home p,
.tdd-home ul {
  margin: 0;
  padding: 0;
}
.tdd-home ul {
  list-style: none;
}
.tdd-home button {
  font-family: inherit;
  cursor: pointer;
}

/* Tràn full màn hình dù theme bọc container */
.tdd-home--full {
  width: 100vw;
  max-width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
}

.tdd-container {
  width: 100%;
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
}

.tdd-section {
  padding: 60px 0;
}

/* ---------- Typography ---------- */
.tdd-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--tdd-accent);
  font-weight: 500;
  font-size: 16px;
  margin-bottom: 14px;
}
.tdd-label img {
  width: 38px;
  height: auto;
}

.tdd-title {
  font-size: clamp(28px, 2.85vw, 41px);
  line-height: 1.25;
  font-weight: 600;
  color: var(--tdd-dark);
  letter-spacing: -0.01em;
}
.tdd-title--light {
  color: #fff;
}

.tdd-line {
  display: block;
  overflow: hidden;
  padding-bottom: 0.06em;
}
.tdd-line > span {
  display: inline-block;
}

.tdd-head {
  margin-bottom: 48px;
}
.tdd-head--split,
.tdd-head--row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 40px;
}
.tdd-head__desc {
  max-width: 545px;
  font-size: 16px;
  padding-bottom: 6px;
}

.tdd-richtext p {
  margin-bottom: 14px;
}
.tdd-richtext strong {
  color: var(--tdd-dark);
  font-weight: 600;
}

/* ---------- Buttons ---------- */
.tdd-btn {
  --bg: var(--tdd-primary);
  --fg: #fff;
  --bg-h: var(--tdd-dark);
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 52px;
  padding: 0 22px;
  border-radius: 100px;
  border: 1.5px solid var(--bg);
  background: var(--bg);
  color: var(--fg) !important;
  font-weight: 500;
  font-size: 16px;
  overflow: hidden;
  isolation: isolate;
  transition:
    color 0.4s var(--tdd-ease),
    border-color 0.4s var(--tdd-ease),
    transform 0.4s var(--tdd-ease),
    box-shadow 0.4s var(--tdd-ease);
  white-space: nowrap;
}
.tdd-btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--bg-h);
  border-radius: inherit;
  transform: translateY(101%);
  transition: transform 0.5s var(--tdd-ease);
}
.tdd-btn:hover::before {
  transform: translateY(0);
}
.tdd-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -10px rgba(30, 64, 160, 0.55);
  border-color: var(--bg-h);
}
.tdd-btn__icon {
  display: inline-flex;
  width: 20px;
  height: 20px;
  overflow: hidden;
  position: relative;
}
.tdd-btn__icon svg {
  width: 20px;
  height: 20px;
  flex: none;
  transition: transform 0.45s var(--tdd-ease);
}
.tdd-btn:hover .tdd-btn__icon svg {
  animation: tdd-arrow 0.6s var(--tdd-ease);
}

.tdd-btn--accent {
  --bg: var(--tdd-accent);
  --bg-h: #fff;
}
.tdd-btn--accent:hover {
  color: var(--tdd-primary) !important;
}
.tdd-btn--outline {
  --bg: transparent;
  --fg: var(--tdd-primary);
  --bg-h: var(--tdd-primary);
  border-color: var(--tdd-primary);
}
.tdd-btn--outline:hover {
  color: #fff !important;
}

@keyframes tdd-arrow {
  0% {
    transform: translateX(0);
  }
  45% {
    transform: translateX(120%);
  }
  46% {
    transform: translateX(-120%);
  }
  100% {
    transform: translateX(0);
  }
}

.tdd-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--tdd-accent) !important;
  font-weight: 500;
  white-space: nowrap;
}
.tdd-link i {
  display: inline-flex;
  width: 20px;
  transition: transform 0.4s var(--tdd-ease);
}
.tdd-link svg {
  width: 20px;
  height: 20px;
}
.tdd-link:hover i {
  transform: translateX(5px);
}

/* Arrows */
.tdd-arrows {
  display: flex;
  gap: 8px;
}
.tdd-arrow {
  width: 48px;
  height: 48px;
  min-width: 48px;
  min-height: 48px;
  flex-shrink: 0;
  margin: 0;
  padding: 0;
  line-height: 1;
  border-radius: 4px;
  border: 0;
  background: #eceef1;
  color: var(--tdd-dark);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition:
    background 0.3s,
    color 0.3s,
    transform 0.3s var(--tdd-ease),
    opacity 0.3s;
}
.tdd-arrow svg {
  display: block;
  flex-shrink: 0;
  width: 24px;
  height: 24px;
}
.tdd-arrow svg path {
  stroke-width: 2.2;
}
.tdd-arrow:hover {
  background: var(--tdd-primary);
  color: #fff;
}
.tdd-arrow:active {
  transform: scale(0.92);
}
.tdd-arrow[disabled] {
  opacity: 0.4;
  pointer-events: none;
}
.tdd-arrow--white {
  background: #fff;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* ==========================================================================
   1. HERO
   ========================================================================== */
.tdd-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--tdd-primary);
  touch-action: pan-y pinch-zoom;
}
.tdd-hero__slides {
  display: grid;
  min-height: var(--hero-h, 710px);
}
.tdd-hero__slide {
  grid-area: 1 / 1;
  position: relative;
  min-width: 0;
  display: flex;
  align-items: flex-end;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 950ms ease,
    visibility 950ms;
}
.tdd-hero__slide.is-active {
  z-index: 1;
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.tdd-hero__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.tdd-hero__bg picture {
  display: block;
  width: 100%;
  height: 100%;
}

.tdd-hero__bg picture img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tdd-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.065);
  transition: transform 7s cubic-bezier(0.2, 0.65, 0.3, 1);
}
.tdd-hero.is-loaded .is-active .tdd-hero__bg img {
  transform: scale(1);
}
.tdd-hero__overlay {
  position: absolute;
  inset: 0;
  opacity: var(--hero-overlay, 0.6);
  pointer-events: none;
  background:
    linear-gradient(
      180deg,
      rgba(30, 64, 160, 0) 45%,
      rgba(30, 64, 160, 0.55) 78%,
      rgba(30, 64, 160, 0.92) 100%
    ),
    linear-gradient(90deg, rgba(11, 34, 83, 0.25), rgba(11, 34, 83, 0) 55%);
}
.tdd-hero__content {
  position: relative;
  padding-top: 80px;
  padding-bottom: 64px;
  z-index: 2;
}
.tdd-hero--multiple .tdd-hero__content {
  padding-bottom: 120px;
}
.tdd-hero__content > * {
  opacity: 0;
  transform: translate3d(0, 24px, 0);
  transition:
    opacity 500ms ease,
    transform 700ms var(--tdd-ease);
}
.tdd-hero__slide.is-active .tdd-hero__content > * {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  transition-delay: 180ms;
}
.tdd-hero__slide.is-active .tdd-hero__sub {
  transition-delay: 280ms;
}
.tdd-hero__slide.is-active .tdd-hero__cta {
  transition-delay: 380ms;
}
.tdd-hero__title {
  font-size: clamp(34px, 4.4vw, 60px);
  line-height: 1.18;
  font-weight: 600;
  color: #fff;
  letter-spacing: -0.015em;
  -webkit-text-stroke: 1.2px rgba(11, 34, 83, 0.7);
  paint-order: stroke fill;
  text-shadow:
    0 2px 3px rgba(11, 34, 83, 0.45),
    0 8px 24px rgba(0, 0, 0, 0.3);
  max-width: 960px;
  overflow-wrap: anywhere;
}
.tdd-hero__sub {
  color: rgba(255, 255, 255, 0.9);
  max-width: 620px;
  margin-top: 18px;
  font-size: 18px;
}
.tdd-hero__content .tdd-btn {
  margin-top: 28px;
  border-radius: 12px;
}
.tdd-hero__controls {
  position: absolute;
  z-index: 3;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: #fff;
}
.tdd-hero__controls[hidden] {
  display: none;
}
.tdd-hero__pagination {
  position: relative;
  display: flex;
  align-items: center;
  min-width: 0;
  max-width: 50%;
  overflow-x: auto;
  scrollbar-width: none;
  overscroll-behavior-x: contain;
  touch-action: pan-x;
}
.tdd-hero__pagination::-webkit-scrollbar {
  display: none;
}
.tdd-hero__navigation {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.tdd-home .tdd-hero__dot,
.tdd-home .tdd-hero__control {
  margin: 0;
  padding: 0;
  min-width: 44px;
  width: 44px;
  height: 44px;
  min-height: 44px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 50%;
  background: rgba(11, 34, 83, 0.28);
  box-shadow: none;
  transition:
    background 250ms ease,
    border-color 250ms ease,
    transform 250ms ease;
}
.tdd-home .tdd-hero__dot {
  border: 0;
  background: transparent;
  border-radius: 0;
}

/* Tạm ẩn điều khiển tạm dừng/tiếp tục; autoplay vẫn hoạt động. */
.tdd-home .tdd-hero__control[data-hero-pause] {
  display: none;
}
.tdd-hero__dot span {
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.55);
  box-shadow: 0 1px 5px rgba(0, 0, 0, 0.2);
  transition:
    width 450ms var(--tdd-ease),
    background 300ms ease;
}
.tdd-hero__dot.is-active span {
  width: 30px;
  background: var(--tdd-accent);
}
.tdd-home .tdd-hero__control:hover {
  background: var(--tdd-primary);
  border-color: #fff;
  transform: translateY(-2px);
}
.tdd-hero__controls button:focus-visible {
  outline: 2px solid #fff;
  outline-offset: -3px;
}
.tdd-hero__control svg {
  width: 19px;
  height: 19px;
  display: block;
}
.tdd-hero__play-icon {
  display: none;
}
.tdd-hero__control[aria-pressed="true"] .tdd-hero__play-icon {
  display: block;
}
.tdd-hero__control[aria-pressed="true"] .tdd-hero__pause-icon {
  display: none;
}
.tdd-hero__count {
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  margin-right: 12px;
}
.tdd-hero__count-divider {
  margin: 0 10px;
  opacity: 0.5;
}
.tdd-hero__sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}
.tdd-home--static .tdd-hero__slide,
.tdd-home--static .tdd-hero__content > *,
.tdd-home--static .tdd-hero__bg img {
  transition: none;
  transform: none;
}

/* Desktop: show the complete artwork in a stable, proportional frame. */
@media (min-width: 768px) {
  .tdd-hero .tdd-hero__slides {
    min-height: 0;
    aspect-ratio: var(--hero-ratio, 1920 / 700);
  }
  .tdd-hero .tdd-hero__bg picture img {
    object-fit: contain;
    object-position: center;
    transform: none;
    transition: none;
  }
}

/* ==========================================================================
   2. ABOUT
   ========================================================================== */
.tdd-about {
  position: relative;
  background: var(--tdd-light);
  padding: 100px 0;
  overflow: hidden;
}
.tdd-about__deco {
  position: absolute;
  right: -40px;
  bottom: -30px;
  width: 46%;
  height: 75%;
  background: no-repeat right bottom / contain;
  opacity: 0.14;
  pointer-events: none;
}
.tdd-about__grid {
  display: grid;
  grid-template-columns: 593fr 587fr;
  gap: 100px;
  align-items: center;
}
.tdd-about__media {
  position: relative;
  aspect-ratio: 593 / 485;
}
.tdd-about__media--video {
  aspect-ratio: auto;
  height: 380px;
  overflow: hidden;
  border: 3px solid var(--tdd-accent);
  border-radius: 8px;
  background: var(--tdd-dark);
  box-shadow: 0 22px 52px rgba(11, 34, 83, 0.16);
}
@media (max-width: 767px) {
  .tdd-about__media--video {
    height: auto;
    aspect-ratio: 16 / 9;
  }
}

.tdd-about__video {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}
.tdd-about__img {
  position: absolute;
  overflow: hidden;
}
.tdd-about__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--tdd-ease);
}
.tdd-about__img:hover img {
  transform: scale(1.06);
}
.tdd-about__img--1 {
  left: 0;
  top: 0;
  width: 79.4%;
  height: 82%;
  border-radius: 24px 0 0 0;
}
.tdd-about__img--1::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 5px;
  background: var(--tdd-accent);
}
.tdd-about__img--2 {
  left: 50.6%;
  top: 40.6%;
  width: 49.4%;
  height: 59.4%;
  border-radius: 0 0 24px 0;
  box-shadow: -20px -20px 0 0 var(--tdd-light);
}
.tdd-about__badge {
  position: absolute;
  left: 39.5%;
  top: 25.5%;
  width: 23%;
  aspect-ratio: 1;
  z-index: 3;
}
.tdd-about__badge svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}
.tdd-about__badge-bg {
  fill: var(--tdd-primary);
}
.tdd-about__badge-spin {
  transform-origin: 100px 100px;
  animation: tdd-spin 18s linear infinite;
}
.tdd-about__badge-logo {
  position: absolute;
  top: 46%;
  left: 50%;
  display: grid;
  place-items: center;
  width: 50%;
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  pointer-events: none;
}
.tdd-about__badge-logo img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 2px 5px rgba(0, 0, 0, 0.16));
}
.tdd-about__badge text {
  fill: #fff;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.5px;
  font-family: inherit;
}
@keyframes tdd-spin {
  to {
    transform: rotate(360deg);
  }
}

.tdd-about__text .tdd-title {
  margin-bottom: 26px;
}
.tdd-about__text .tdd-richtext {
  margin-bottom: 30px;
  font-size: 16px;
  text-align: justify;
}

/* ==========================================================================
   3. STATS
   ========================================================================== */
.tdd-stats {
  background: var(--tdd-primary);
  color: #fff;
  padding: 60px 0;
  position: relative;
  overflow: hidden;
}
.tdd-stats::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    600px 200px at 15% 0%,
    rgba(255, 255, 255, 0.08),
    transparent 70%
  );
  pointer-events: none;
}
.tdd-stats__grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr 1fr 1fr;
}
.tdd-stats__grid > * {
  padding: 0 30px 0 60px;
  border-left: 1px solid rgba(255, 255, 255, 0.25);
}
.tdd-stats__grid > :first-child {
  padding-left: 0;
  border-left: 0;
}
.tdd-stats__badge {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}
.tdd-stats__badge-img {
  width: 86px;
  height: 86px;
  flex: none;
  background: #fff;
  border-radius: 10px;
  padding: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
  transition: transform 0.5s var(--tdd-ease);
}
.tdd-stats__badge-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.tdd-stats__badge:hover .tdd-stats__badge-img {
  transform: rotate(-6deg) scale(1.05);
}
.tdd-stats__badge-title,
.tdd-stats__num {
  font-size: clamp(32px, 3.2vw, 48px);
  line-height: 1.1;
  font-weight: 600;
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
}
.tdd-stats__badge-title {
  color: var(--tdd-accent);
}
.tdd-stats__label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.5;
}

/* ==========================================================================
   4. PROGRAMS
   ========================================================================== */
.tdd-programs {
  background: #fff;
}
.tdd-programs__list {
  display: grid;
  gap: 20px;
}
.tdd-program {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 30px;
  padding: 28px 52px 32px 32px;
  border-radius: 12px;
  background: var(--tdd-card);
  overflow: hidden;
  isolation: isolate;
  transition:
    box-shadow 0.5s var(--tdd-ease),
    transform 0.5s var(--tdd-ease);
}
.tdd-program::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(100deg, var(--tdd-primary), #2b55c7);
  clip-path: circle(0% at 92% 30%);
  transition: clip-path 0.8s var(--tdd-ease);
}
.tdd-program:hover::before {
  clip-path: circle(150% at 92% 30%);
}
.tdd-program:hover {
  box-shadow: 0 24px 50px -24px rgba(30, 64, 160, 0.6);
  transform: translateY(-3px);
}
.tdd-program__title {
  font-size: clamp(20px, 1.8vw, 26px);
  font-weight: 500;
  color: var(--tdd-dark);
  margin-bottom: 10px;
  transition: color 0.4s;
}
.tdd-program__desc {
  max-width: 545px;
  font-size: 16px;
  color: var(--tdd-text);
  transition: color 0.4s;
}
.tdd-program__more {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--tdd-dark);
  font-weight: 500;
  white-space: nowrap;
  margin-top: 8px;
  transition: color 0.4s;
}
.tdd-program__more i {
  display: inline-flex;
  width: 22px;
  transition: transform 0.5s var(--tdd-ease);
}
.tdd-program__more svg {
  width: 22px;
  height: 22px;
}
.tdd-program:hover .tdd-program__title,
.tdd-program:hover .tdd-program__more {
  color: #fff;
}
.tdd-program:hover .tdd-program__desc {
  color: rgba(255, 255, 255, 0.85);
}
.tdd-program:hover .tdd-program__more i {
  transform: translateX(6px);
}

/* ==========================================================================
   5. MAJORS
   ========================================================================== */
.tdd-majors {
  background: var(--tdd-primary);
  padding: 12px 20px;
}
.tdd-majors__frame {
  background: #fff;
  border-radius: 24px;
  padding: 50px 0 60px;
}
.tdd-majors .tdd-head {
  margin-bottom: 40px;
}
.tdd-majors__grid {
  display: grid;
  grid-template-columns: 255px 1fr;
  gap: 80px;
}
.tdd-majors__side {
  display: flex;
  flex-direction: column;
  gap: 56px;
  align-items: flex-start;
}
.tdd-majors__tabs {
  width: 100%;
}
.tdd-majors__tab {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0;
  width: 100%;
  padding: 12px 8px;
  background: none;
  border: 0;
  border-bottom: 2px solid #eef0f3;
  color: #c3c8d2;
  font-size: 16px;
  font-weight: 500;
  text-align: left;
  transition:
    color 0.35s,
    gap 0.4s var(--tdd-ease),
    padding 0.4s var(--tdd-ease);
}
.tdd-majors__tab::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  height: 2px;
  width: 100%;
  background: var(--tdd-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--tdd-ease);
}
.tdd-majors__tab i {
  display: inline-flex;
  width: 0;
  overflow: hidden;
  color: var(--tdd-primary);
  transition: width 0.4s var(--tdd-ease);
}
.tdd-majors__tab i svg {
  width: 10px;
  height: 12px;
  flex: none;
}
.tdd-majors__tab:hover {
  color: var(--tdd-text);
}
.tdd-majors__tab.is-active {
  color: var(--tdd-primary);
  gap: 16px;
}
.tdd-majors__tab.is-active i {
  width: 10px;
}
.tdd-majors__tab.is-active::after {
  transform: scaleX(1);
}

.tdd-majors__panels {
  position: relative;
  min-width: 0;
}
.tdd-majors__panel {
  display: none;
}
.tdd-majors__panel.is-active {
  display: block;
  animation: tdd-panel-in 0.7s var(--tdd-ease) both;
}
@keyframes tdd-panel-in {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.tdd-major {
  background: var(--tdd-soft);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition:
    box-shadow 0.5s var(--tdd-ease),
    transform 0.5s var(--tdd-ease);
}
.tdd-major:hover {
  box-shadow: 0 22px 44px -22px rgba(11, 34, 83, 0.45);
  transform: translateY(-4px);
}
.tdd-major__media {
  position: relative;
  display: block;
  aspect-ratio: 475 / 290;
  overflow: hidden;
}
.tdd-major__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1s var(--tdd-ease);
}
.tdd-major:hover .tdd-major__media img {
  transform: scale(1.07);
}
.tdd-major__badge {
  position: absolute;
  left: 20px;
  bottom: 18px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 4px;
  background: var(--tdd-accent);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
}
.tdd-major__badge svg {
  width: 22px;
  height: 22px;
}
.tdd-major__body {
  padding: 22px 20px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.tdd-major__title {
  font-size: 20px;
  font-weight: 600;
  color: var(--tdd-dark);
  margin-bottom: 10px;
}
.tdd-major__title a:hover {
  color: var(--tdd-primary);
}
.tdd-major__desc {
  font-size: 14px;
  color: var(--tdd-text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 20px;
}
.tdd-major__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 0;
  margin-top: auto;
  font-size: 14px;
  color: var(--tdd-text);
}
.tdd-major__meta li {
  padding: 0 10px;
  border-left: 1px solid #c7cede;
  line-height: 1.2;
}
.tdd-major__meta li:first-child {
  padding-left: 0;
  border-left: 0;
}
.tdd-major__meta b {
  color: var(--tdd-dark);
  font-weight: 600;
}

/* ---------- Slider (dùng chung) ---------- */
.tdd-slider__viewport {
  overflow: hidden;
  touch-action: pan-y;
  cursor: grab;
}
.tdd-slider__viewport.is-dragging {
  cursor: grabbing;
}
.tdd-slider__viewport.is-dragging a {
  pointer-events: none;
}
.tdd-slider__track {
  --per: 2;
  --gap: 16px;
  display: flex;
  gap: var(--gap);
  transition: transform 0.8s var(--tdd-ease);
  will-change: transform;
}
.tdd-slider__slide {
  flex: 0 0 calc((100% - (var(--per) - 1) * var(--gap)) / var(--per));
  min-width: 0;
  user-select: none;
}
.tdd-slider__slide img {
  -webkit-user-drag: none;
}
.tdd-slider__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  margin-top: 24px;
}
.tdd-slider__progress {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  max-width: 505px;
}
.tdd-slider__count {
  font-size: 16px;
  color: var(--tdd-muted);
  font-variant-numeric: tabular-nums;
}
.tdd-slider__count b {
  color: var(--tdd-primary);
  font-weight: 600;
  font-size: 18px;
}
.tdd-slider__bar {
  flex: 1;
  height: 2px;
  background: #e3e6ec;
  position: relative;
  overflow: hidden;
  border-radius: 2px;
}
.tdd-slider__bar i {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 100%;
  background: var(--tdd-primary);
  transform-origin: left;
  transform: scaleX(0.2);
  transition: transform 0.8s var(--tdd-ease);
}

/* ==========================================================================
   6. RESEARCH
   ========================================================================== */
.tdd-research {
  position: relative;
  background: var(--tdd-primary);
  color: rgba(255, 255, 255, 0.88);
  padding: 120px 0 0;
  overflow: hidden;
}
.tdd-research__grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 330px 330px;
  background-position: -100px -90px;
  -webkit-mask-image: radial-gradient(
    ellipse at 30% 40%,
    #000 30%,
    transparent 80%
  );
  mask-image: radial-gradient(ellipse at 30% 40%, #000 30%, transparent 80%);
  pointer-events: none;
}
.tdd-research__grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 40px;
  align-items: end;
}
.tdd-research__text {
  padding-bottom: 120px;
  align-self: start;
}
.tdd-research__text .tdd-title {
  margin-bottom: 30px;
}
.tdd-research__text p {
  max-width: 575px;
  margin-bottom: 40px;
  text-align: justify;
}
.tdd-research__media {
  position: relative;
  min-width: 0;
}
.tdd-research__media img {
  width: 100%;
  max-width: 100%;
  margin-left: auto;
  margin-right: 0;
}
.tdd-research__media::before {
  content: "";
  position: absolute;
  left: 10%;
  right: 0;
  bottom: 0;
  height: 70%;
  background: radial-gradient(
    closest-side,
    rgba(255, 255, 255, 0.18),
    transparent
  );
  filter: blur(10px);
  z-index: 0;
}
.tdd-research__media img {
  position: relative;
  z-index: 1;
}

/* ==========================================================================
   7. VIDEO
   ========================================================================== */
.tdd-video {
  padding: 0 0 100px;
  background: #fff;
  position: relative;
}
/* Khi đứng ngay sau section Nghiên cứu: card đè lên nền xanh như thiết kế */
.tdd-research + .tdd-video {
  background: linear-gradient(var(--tdd-primary) 0 56%, #fff 56%);
}
.tdd-research + .tdd-video .tdd-video__card {
  margin-top: -110px;
}
.tdd-research:has(+ .tdd-video) {
  padding-bottom: 110px;
}
.tdd-research:has(+ .tdd-video) .tdd-research__media {
  margin-bottom: -110px;
}

.tdd-video__card {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  min-height: 586px;
  display: flex;
  align-items: center;
  box-shadow: 0 40px 80px -40px rgba(11, 34, 83, 0.55);
  z-index: 2;
}
.tdd-video__bg {
  position: absolute;
  inset: 0;
}
.tdd-video__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.6s var(--tdd-ease);
}
.tdd-video__card:hover .tdd-video__bg img {
  transform: scale(1.05);
}
.tdd-video__card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    90deg,
    rgba(10, 14, 82, 0.95) 0%,
    rgba(17, 22, 96, 0.75) 35%,
    rgba(20, 30, 110, 0.15) 65%,
    transparent 80%
  );
}
.tdd-video__content {
  position: relative;
  z-index: 2;
  padding: 64px;
  max-width: 620px;
  color: rgba(255, 255, 255, 0.9);
}
.tdd-video__title {
  font-size: clamp(28px, 2.6vw, 36px);
  margin-bottom: 26px;
}
.tdd-video__content p {
  margin-bottom: 30px;
  font-size: 16px;
}

.tdd-play {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  border: 0;
  background: rgba(255, 255, 255, 0.12);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  color: #fff;
  padding: 0;
  transition:
    transform 0.4s var(--tdd-ease),
    background 0.4s;
}
.tdd-play:hover {
  transform: scale(1.08);
  background: var(--tdd-accent);
}
.tdd-play--static:hover {
  transform: none;
  background: rgba(255, 255, 255, 0.12);
}
.tdd-play__ring {
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  border: 2px dashed rgba(255, 255, 255, 0.9);
  animation: tdd-spin 12s linear infinite;
}
.tdd-play::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.6);
  animation: tdd-pulse 2.2s var(--tdd-ease) infinite;
}
.tdd-play__icon {
  display: inline-flex;
  width: 34px;
  height: 34px;
  margin-left: 4px;
}
.tdd-play__icon svg {
  width: 100%;
  height: 100%;
}
@keyframes tdd-pulse {
  0% {
    transform: scale(1);
    opacity: 0.9;
  }
  100% {
    transform: scale(1.7);
    opacity: 0;
  }
}

/* Modal video */
.tdd-modal {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(6, 12, 40, 0.85);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  opacity: 0;
  transition: opacity 0.4s var(--tdd-ease);
}
.tdd-modal.is-open {
  opacity: 1;
}
.tdd-modal__box {
  position: relative;
  width: min(1100px, 100%);
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: 16px;
  overflow: hidden;
  transform: scale(0.9) translateY(20px);
  transition: transform 0.5s var(--tdd-ease);
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.5);
}
.tdd-modal.is-open .tdd-modal__box {
  transform: none;
}
.tdd-modal__box iframe,
.tdd-modal__box video {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}
.tdd-modal__close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 0;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition:
    background 0.3s,
    transform 0.4s var(--tdd-ease);
}
.tdd-modal__close:hover {
  background: var(--tdd-accent);
  transform: rotate(90deg);
}
.tdd-modal__close svg {
  width: 22px;
  height: 22px;
}

/* ==========================================================================
   8. LIFE – dải ảnh cong
   ========================================================================== */
.tdd-life {
  background: #fff;
  padding-top: 60px;
  padding-bottom: 20px;
  overflow: hidden;
}
.tdd-video + .tdd-life {
  padding-top: 0;
}
.tdd-life .tdd-head {
  margin-bottom: 20px;
}
.tdd-life__row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 60px;
  margin-bottom: 40px;
}
.tdd-life__desc {
  max-width: 730px;
  text-align: justify;
}

.tdd-curve {
  --curve-depth: 150px;
  --curve-shift: 90px;
  position: relative;
  height: 440px;
  overflow: hidden;
}
.tdd-curve::before,
.tdd-curve::after {
  content: "";
  position: absolute;
  left: -20%;
  width: 140%;
  height: calc(var(--curve-depth) * 2);
  border-radius: 50%;
  background: #fff;
  z-index: 2;
  pointer-events: none;
}
.tdd-curve::before {
  top: calc(-1 * (var(--curve-depth) + var(--curve-shift)));
}
.tdd-curve::after {
  bottom: calc(-1 * (var(--curve-depth) + var(--curve-shift)));
}
.tdd-curve__track {
  display: flex;
  gap: 10px;
  height: 100%;
  will-change: transform;
}
.tdd-curve__item {
  flex: 0 0 auto;
  width: 280px;
  height: 100%;
  overflow: hidden;
}
.tdd-curve__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition:
    transform 1s var(--tdd-ease),
    filter 0.6s;
  pointer-events: none;
  user-select: none;
}
.tdd-curve__item:hover img {
  transform: scale(1.08);
}
.tdd-curve__prev,
.tdd-curve__next {
  position: absolute;
  top: 50%;
  z-index: 3;
  transform: translateY(-50%);
}
.tdd-curve__prev {
  left: 40px;
}
.tdd-curve__next {
  right: 40px;
}
.tdd-curve__prev:active,
.tdd-curve__next:active {
  transform: translateY(-50%) scale(0.92);
}
.tdd-curve {
  cursor: grab;
  touch-action: pan-y;
}
.tdd-curve.is-dragging {
  cursor: grabbing;
}

/* ==========================================================================
   9. EVENTS
   ========================================================================== */
.tdd-events {
  background: #fff;
  padding-top: 60px;
}
.tdd-events__tabs-wrap {
  position: relative;
}
.tdd-events__tabs {
  display: flex;
  gap: 8px;
  padding: 4px 128px 4px 4px;
  margin-bottom: 28px;
  overflow-x: auto;
  scrollbar-width: thin;
}
.tdd-home .tdd-events__tab {
  flex-shrink: 0;
  margin: 0;
  padding: 12px 24px;
  min-height: 48px;
  border: 1px solid var(--tdd-accent);
  border-radius: 6px;
  background: #fff;
  color: var(--tdd-dark);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0;
  text-transform: none;
  box-shadow: none;
  transition:
    color 250ms,
    background 250ms,
    border-color 250ms;
}
.tdd-home .tdd-events__tab:hover {
  background: var(--tdd-accent);
  color: var(--tdd-dark);
  border-color: var(--tdd-accent);
}
.tdd-home .tdd-events__tab.is-active {
  background: var(--tdd-accent);
  color: var(--tdd-dark);
  border-color: var(--tdd-accent);
}
.tdd-events__tab:focus-visible {
  outline: 2px solid var(--tdd-accent);
  outline-offset: 2px;
}
.tdd-events__panel[hidden] {
  display: none;
}
.tdd-events__all {
  display: flex;
  justify-content: center;
  margin-top: 32px;
}
.tdd-events__all .tdd-btn {
  margin: 0;
}
.tdd-events__panel.is-active .tdd-slider__viewport {
  animation: tdd-events-enter 450ms var(--tdd-ease) both;
}
.tdd-events__arrows {
  position: absolute;
  top: 4px;
  right: 0;
}
.tdd-events__empty {
  padding: 48px 24px !important;
  border-radius: 16px;
  background: var(--tdd-light);
  color: var(--tdd-muted);
  text-align: center;
}
@keyframes tdd-events-enter {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@media (max-width: 767px) {
  .tdd-events__tabs {
    padding-right: 4px;
    margin-bottom: 20px;
    gap: 6px;
  }
  .tdd-home .tdd-events__tab {
    padding: 10px 16px;
    font-size: 14px;
  }
  .tdd-events__arrows {
    position: static;
    justify-content: flex-end;
    margin-bottom: 18px;
  }
}
.tdd-events .tdd-slider__track {
  --per: 3;
  --gap: 20px;
  padding: 6px 2px 40px;
}
.tdd-events .tdd-slider__viewport {
  margin: -6px -2px -40px;
  padding: 0 2px;
}
.tdd-event {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 30px -12px rgba(11, 34, 83, 0.22);
  display: flex;
  flex-direction: column;
  transition:
    transform 0.5s var(--tdd-ease),
    box-shadow 0.5s var(--tdd-ease);
}
.tdd-event:hover {
  transform: translateY(-6px);
  box-shadow: 0 28px 50px -22px rgba(11, 34, 83, 0.4);
}
.tdd-event__media {
  display: block;
  aspect-ratio: 413 / 236;
  overflow: hidden;
}
.tdd-event__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1s var(--tdd-ease);
}
.tdd-event:hover .tdd-event__media img {
  transform: scale(1.07);
}
.tdd-event__bottom {
  display: flex;
  flex: 1;
}
.tdd-event__date {
  flex: 0 0 79px;
  background: var(--tdd-primary);
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 32px;
  transition: background 0.4s;
}
.tdd-event:hover .tdd-event__date {
  background: var(--tdd-accent);
}
.tdd-event__date b {
  font-size: 28px;
  font-weight: 600;
  line-height: 1;
}
.tdd-event__date span {
  font-size: 14px;
  opacity: 0.85;
  margin-top: 6px;
}
.tdd-event__body {
  padding: 16px 18px 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.tdd-event__title {
  font-size: 18px;
  line-height: 1.55;
  font-weight: 500;
  color: var(--tdd-dark);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}
.tdd-event__title a:hover {
  color: var(--tdd-primary);
}
.tdd-event__meta {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--tdd-muted);
}
.tdd-event__meta b {
  color: var(--tdd-dark);
  font-weight: 500;
}

/* ==========================================================================
   10. NEWS
   ========================================================================== */
.tdd-news {
  background: var(--tdd-light);
}
/* Editorial tabs: numbered labels, generous spacing and an accent underline. */
.tdd-news__tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-bottom: 1px solid #dfe5ee;
  margin-bottom: 32px;
}
.tdd-home .tdd-news__tab {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 8px;
  min-width: 0;
  min-height: 100px;
  padding: 18px 24px 22px;
  margin: 0;
  border: 0;
  border-radius: 8px 8px 0 0;
  background: transparent;
  color: var(--tdd-muted);
  line-height: 1.4;
  text-align: left;
  text-transform: none;
  letter-spacing: 0;
  box-shadow: none;
  white-space: normal;
  transition:
    color 250ms,
    background 250ms;
}
.tdd-news__tab::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 4px;
  border-radius: 4px 4px 0 0;
  background: var(--tdd-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 400ms var(--tdd-ease);
}
.tdd-news__tab-index {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
}
.tdd-news__tab-label {
  font-size: clamp(15px, 1.4vw, 19px);
  font-weight: 600;
  overflow-wrap: anywhere;
}
.tdd-home .tdd-news__tab:hover,
.tdd-home .tdd-news__tab.is-active {
  color: var(--tdd-dark);
  background: #fff;
}
.tdd-news__tab.is-active .tdd-news__tab-index {
  color: var(--tdd-accent);
}
.tdd-news__tab.is-active::after {
  transform: scaleX(1);
}
.tdd-home .tdd-news__tab:focus-visible {
  outline: 2px solid var(--tdd-accent);
  outline-offset: -3px;
}
.tdd-news__panel[hidden] {
  display: none;
}
.tdd-news__panel.is-active {
  animation: tdd-news-enter 420ms var(--tdd-ease) both;
}
.tdd-news__grid.tdd-news__grid--single {
  grid-template-columns: minmax(0, 1fr);
}
.tdd-news__grid--single .tdd-news__side {
  display: none;
}
.tdd-news__side.tdd-news__side--single {
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr);
}
.tdd-news__more {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  margin-top: 28px;
}
.tdd-home .tdd-news__tile {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  border: 1px solid #e5e9f0;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 8px 24px -18px rgba(11, 34, 83, 0.3);
  transition:
    transform 350ms var(--tdd-ease),
    box-shadow 350ms;
}
.tdd-news__tile:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 32px -20px rgba(11, 34, 83, 0.4);
}
.tdd-news__tile:focus-visible {
  outline: 2px solid var(--tdd-accent);
  outline-offset: 3px;
}
.tdd-news__tile-media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #e5e9f0;
}
.tdd-news__tile-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 700ms var(--tdd-ease);
}
.tdd-news__tile:hover .tdd-news__tile-media img {
  transform: scale(1.04);
}
.tdd-news__tile-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  padding: 20px;
}
.tdd-news__tile-body time {
  font-size: 12px;
  color: var(--tdd-muted);
}
.tdd-news__tile-body h3 {
  color: var(--tdd-dark);
  font-size: 16px;
  line-height: 1.55;
  font-weight: 600;
  max-height: 3.1em;
}
.tdd-news__tile-excerpt {
  color: var(--tdd-text);
  font-size: 14px;
  line-height: 1.6;
  max-height: 3.2em;
}
.tdd-news__tile-body h3,
.tdd-news__tile-excerpt {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  overflow: hidden;
  overflow-wrap: anywhere;
  width: 100%;
}
.tdd-news__tile-body .tdd-link {
  margin-top: auto;
  padding-top: 8px;
  font-size: 13px;
}
@media (max-width: 1023px) {
  .tdd-news__more {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 575px) {
  .tdd-news__more {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
    margin-top: 22px;
  }
}
.tdd-news__all {
  display: flex;
  justify-content: flex-end;
  margin-top: 28px;
}
.tdd-news__all .tdd-btn {
  margin: 0;
}
.tdd-news__empty {
  padding: 48px 24px !important;
  border: 1px dashed #dfe5ee;
  border-radius: 12px;
  color: var(--tdd-muted);
  text-align: center;
}
@keyframes tdd-news-enter {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@media (max-width: 767px) {
  .tdd-news__tabs {
    display: flex;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    scrollbar-width: thin;
    margin-bottom: 24px;
  }
  .tdd-home .tdd-news__tab {
    flex: 0 0 auto;
    min-width: 130px;
    max-width: 240px;
    min-height: 84px;
    padding: 14px 18px 18px;
    gap: 6px;
  }
  .tdd-news__tab::after {
    bottom: 0;
  }
  .tdd-news__tab-label {
    font-size: 15px;
  }
  .tdd-news__all {
    justify-content: center;
  }
}
.tdd-news__grid {
  display: grid;
  grid-template-columns: 877fr 383fr;
  gap: 20px;
}
.tdd-news__main {
  display: grid;
  grid-template-columns: 547fr 330fr;
  border-radius: 12px;
  overflow: hidden;
  min-height: 438px;
  background: var(--tdd-primary);
  box-shadow: 0 30px 60px -36px rgba(11, 34, 83, 0.6);
}
.tdd-news__main-media {
  display: block;
  overflow: hidden;
}
.tdd-news__main-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--tdd-ease);
}
.tdd-news__main:hover .tdd-news__main-media img {
  transform: scale(1.06);
}
.tdd-news__main-body {
  padding: 28px;
  color: rgba(255, 255, 255, 0.8);
  display: flex;
  flex-direction: column;
}
.tdd-news__main-body time {
  font-size: 14px;
  color: #fff;
  margin-bottom: 18px;
}
.tdd-news__main-body h3 {
  font-size: 20px;
  line-height: 1.5;
  font-weight: 500;
  color: #fff;
  margin-bottom: 20px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.tdd-news__main-body h3 a:hover {
  color: var(--tdd-accent);
}
.tdd-news__main-body p {
  font-size: 14px;
  line-height: 1.7;
}
.tdd-news__main-meta {
  margin-top: auto;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  font-size: 14px;
}
.tdd-news__main-meta b {
  color: #fff;
  font-weight: 500;
}

.tdd-news__side {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 20px;
}
.tdd-news__card {
  position: relative;
  display: block;
  border-radius: 12px;
  overflow: hidden;
  min-height: 209px;
}
.tdd-news__card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  transition: transform 1.2s var(--tdd-ease);
}
.tdd-news__card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    180deg,
    rgba(30, 64, 160, 0) 30%,
    rgba(30, 64, 160, 0.92) 100%
  );
  transition: opacity 0.5s;
}
.tdd-news__card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: rgba(30, 64, 160, 0.55);
  opacity: 0;
  transition: opacity 0.5s var(--tdd-ease);
}
.tdd-news__card:hover img {
  transform: scale(1.08);
}
.tdd-news__card:hover::after {
  opacity: 1;
}
.tdd-news__card-body {
  position: absolute;
  z-index: 2;
  left: 16px;
  right: 16px;
  bottom: 16px;
  color: #fff;
  transition: transform 0.5s var(--tdd-ease);
}
.tdd-news__card:hover .tdd-news__card-body {
  transform: translateY(-6px);
}
.tdd-news__card time {
  font-size: 14px;
}
.tdd-news__card h3 {
  font-size: 16px;
  line-height: 1.5;
  font-weight: 500;
  color: #fff;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ==========================================================================
   11. CONTACT
   ========================================================================== */
.tdd-contact {
  position: relative;
  display: grid;
  padding: 0;
  overflow: hidden;
  isolation: isolate;
  background: var(--tdd-light);
}
/* The full-width image sets the height; its original aspect ratio stays intact. */
.tdd-contact__bg {
  grid-area: 1 / 1;
  align-self: center;
  min-width: 0;
}
.tdd-contact__bg img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}
.tdd-contact__inner {
  position: relative;
  z-index: 1;
  grid-area: 1 / 1;
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-top: clamp(24px, 4vw, 72px);
  padding-bottom: clamp(24px, 4vw, 72px);
}
.tdd-form {
  width: min(48%, 616px);
  min-width: 0;
  max-width: 100%;
  background: #fff;
  border-radius: 16px;
  padding: 28px 32px 32px;
  box-shadow: 0 30px 70px -30px rgba(11, 34, 83, 0.35);
  margin-bottom: 0;
}
.tdd-form__title {
  font-size: clamp(22px, 2vw, 26px);
  font-weight: 600;
  color: var(--tdd-dark);
  margin-bottom: 22px !important;
}
.tdd-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.tdd-field {
  margin-bottom: 14px;
  position: relative;
}
.tdd-field label {
  display: block;
  font-size: 15px;
  font-weight: 500;
  color: var(--tdd-dark);
  margin-bottom: 8px;
}
.tdd-field em {
  color: #e53935;
  font-style: normal;
}
.tdd-field input,
.tdd-field textarea {
  width: 100% !important;
  height: 52px !important;
  border-radius: 6px !important;
  border: 1px solid #dfe3ea !important;
  background: #fff !important;
  font: inherit !important;
  font-size: 15px !important;
  color: var(--tdd-dark) !important;
  outline: none !important;
  box-shadow: none !important;
  transition:
    border-color 0.3s,
    box-shadow 0.3s !important;
}
.tdd-field textarea {
  height: 86px;
  padding: 14px 16px;
  border-radius: 12px;
  resize: vertical;
}
.tdd-field input::placeholder,
.tdd-field textarea::placeholder {
  color: #9aa2b4;
}
.tdd-field input:focus,
.tdd-field textarea:focus {
  border-color: var(--tdd-primary);
  box-shadow: 0 0 0 4px rgba(30, 64, 160, 0.12);
}
.tdd-field.has-error input {
  border-color: #e53935;
  box-shadow: 0 0 0 4px rgba(229, 57, 53, 0.1);
  animation: tdd-shake 0.4s;
}
.tdd-field__err {
  display: block;
  color: #e53935;
  font-size: 13px;
  min-height: 0;
  margin-top: 4px;
  padding-left: 16px;
}
.tdd-field__err:empty {
  display: none;
}
@keyframes tdd-shake {
  25% {
    transform: translateX(-4px);
  }
  75% {
    transform: translateX(4px);
  }
}
.tdd-hp {
  position: absolute !important;
  left: -9999px !important;
  opacity: 0;
  height: 0;
  width: 0;
}
.tdd-form .tdd-btn {
  margin-top: 10px;
}
.tdd-form .tdd-btn.is-loading {
  pointer-events: none;
  opacity: 0.85;
}
.tdd-form .tdd-btn.is-loading .tdd-btn__icon svg {
  display: none;
}
.tdd-form .tdd-btn.is-loading .tdd-btn__icon::after {
  content: "";
  width: 18px;
  height: 18px;
  margin: 1px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: tdd-spin 0.7s linear infinite;
}
.tdd-form__msg {
  margin-top: 14px;
  font-size: 15px;
  border-radius: 10px;
}
.tdd-form__msg:empty {
  display: none;
}
.tdd-form__msg.is-ok {
  color: #0f7a3d;
  background: #e8f6ee;
  padding: 12px 16px;
  animation: tdd-panel-in 0.5s var(--tdd-ease);
}
.tdd-form__msg.is-err {
  color: #b3261e;
  background: #fdecea;
  padding: 12px 16px;
  animation: tdd-panel-in 0.5s var(--tdd-ease);
}

/* ==========================================================================
   ANIMATIONS (chỉ ẩn khi JS đã sẵn sàng)
   ========================================================================== */
.tdd-js [data-tdd-anim] {
  transition:
    opacity 1s var(--tdd-ease) var(--d, 0ms),
    transform 1.1s var(--tdd-ease) var(--d, 0ms),
    clip-path 1.3s var(--tdd-ease-io) var(--d, 0ms);
}
.tdd-js [data-tdd-anim="fade-up"] {
  opacity: 0;
  transform: translateY(40px);
}
.tdd-js [data-tdd-anim="fade-left"] {
  opacity: 0;
  transform: translateX(60px);
}
.tdd-js [data-tdd-anim="fade-right"] {
  opacity: 0;
  transform: translateX(-60px);
}
.tdd-js [data-tdd-anim="zoom-in"] {
  opacity: 0;
  transform: scale(0.9);
}
.tdd-js [data-tdd-anim="reveal-right"] {
  clip-path: inset(0 100% 0 0);
}
.tdd-js [data-tdd-anim="reveal-up"] {
  clip-path: inset(100% 0 0 0);
}
.tdd-js [data-tdd-anim="reveal-right"] img,
.tdd-js [data-tdd-anim="reveal-up"] img {
  transform: scale(1.25);
  transition: transform 1.6s var(--tdd-ease) var(--d, 0ms);
}
.tdd-js [data-tdd-anim="lines"] .tdd-line > span {
  transform: translateY(105%);
  transition: transform 1.1s var(--tdd-ease)
    calc(var(--d, 0ms) + var(--i, 0) * 120ms);
}

.tdd-js [data-tdd-anim].is-in {
  opacity: 1;
  transform: none;
  clip-path: inset(0 0 0 0);
}
.tdd-js [data-tdd-anim].is-in img {
  transform: none;
}
.tdd-js [data-tdd-anim="lines"].is-in .tdd-line > span {
  transform: none;
}
/* JS gỡ data-tdd-anim sau khi chạy xong để hiệu ứng hover hoạt động bình thường */

/* Tắt hiệu ứng */
.tdd-home--static [data-tdd-anim],
.tdd-home--static [data-tdd-anim] *,
.tdd-home--static .tdd-hero__bg img {
  opacity: 1 !important;
  transform: none !important;
  clip-path: none !important;
  transition: none !important;
}

@media (prefers-reduced-motion: reduce) {
  .tdd-hero__bg img,
  .tdd-hero__content > * {
    transform: none !important;
    transition-delay: 0s !important;
  }
  .tdd-home *,
  .tdd-home *::before,
  .tdd-home *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .tdd-js [data-tdd-anim] {
    opacity: 1 !important;
    transform: none !important;
    clip-path: none !important;
  }
  .tdd-js [data-tdd-anim] .tdd-line > span {
    transform: none !important;
  }
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 1199px) {
  .tdd-about__grid {
    gap: 60px;
  }
  .tdd-majors__grid {
    gap: 40px;
  }
  .tdd-stats__grid > * {
    padding: 0 20px 0 30px;
  }
}

@media (max-width: 1023px) {
  .tdd-section {
    padding: 72px 0;
  }
  .tdd-head--split {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .tdd-head {
    margin-bottom: 36px;
  }

  .tdd-hero__slides {
    min-height: min(var(--hero-h, 710px), 720px);
  }

  .tdd-about {
    padding: 72px 0;
  }
  .tdd-about__grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }
  .tdd-about__media {
    max-width: 600px;
  }
  .tdd-about__deco {
    width: 80%;
    height: 40%;
  }

  .tdd-stats__grid {
    grid-template-columns: 1fr 1fr;
    row-gap: 36px;
  }
  .tdd-stats__grid > * {
    padding: 0 20px;
  }
  .tdd-stats__grid > :nth-child(odd) {
    border-left: 0;
    padding-left: 0;
  }

  .tdd-majors__grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }
  .tdd-majors__grid > * {
    min-width: 0;
  }
  .tdd-majors__side {
    width: 100%;
  }
  .tdd-majors__side {
    gap: 0;
  }
  .tdd-majors__tabs {
    display: flex;
    overflow-x: auto;
    scrollbar-width: none;
    margin: 0 -20px;
    padding: 0 20px;
  }
  .tdd-majors__tabs::-webkit-scrollbar {
    display: none;
  }
  .tdd-majors__tabs li {
    flex: none;
  }
  .tdd-majors__tab {
    white-space: nowrap;
    padding: 12px 14px;
  }
  .tdd-majors__side > .tdd-btn {
    display: none;
  }

  .tdd-research {
    padding-top: 80px;
  }
  .tdd-research__grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .tdd-research__text {
    padding-bottom: 0;
  }
  .tdd-research__media img {
    margin: 0 auto;
    width: 100%;
    max-width: 520px;
  }

  .tdd-video__card {
    min-height: 480px;
  }
  .tdd-video__content {
    padding: 40px;
  }

  .tdd-life__row {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }
  .tdd-curve {
    height: 360px;
    --curve-depth: 110px;
    --curve-shift: 72px;
  }
  .tdd-curve__item {
    width: 230px;
  }

  .tdd-events .tdd-slider__track {
    --per: 2;
  }

  .tdd-news__grid {
    grid-template-columns: 1fr;
  }
  .tdd-news__side {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: none;
  }

  .tdd-contact {
    display: block;
  }
  .tdd-contact__inner {
    margin-top: 0;
    padding-top: 28px;
    padding-bottom: 60px;
    justify-content: center;
  }
  .tdd-contact .tdd-form {
    width: 100%;
    max-width: 616px;
  }
}

@media (max-width: 767px) {
  .tdd-home {
    font-size: 15px;
  }
  .tdd-section {
    padding: 60px 0;
  }
  .tdd-head--row {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
  }

  .tdd-hero__slides {
    min-height: 0;
  }
  .tdd-hero__slide {
    flex-direction: column;
    align-items: stretch;
  }

  .tdd-hero__bg {
    position: relative;
    inset: 0;
    flex-shrink: 0;
    width: 100%;
    aspect-ratio: var(--hero-ratio, 1920 / 700);
  }

  .tdd-hero__bg picture {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
  }

  .tdd-hero .tdd-hero__bg picture img {
    display: block;
    object-fit: contain;
    object-position: center;
    transform: none;
    transition: none;
  }
  .tdd-hero__overlay {
    bottom: auto;
    width: 100%;
    aspect-ratio: var(--hero-ratio, 1920 / 700);
  }
  .tdd-hero__content,
  .tdd-hero--multiple .tdd-hero__content {
    padding-top: 20px;
    padding-bottom: 20px;
  }
  .tdd-hero__title {
    font-size: clamp(28px, 7vw, 40px);
    -webkit-text-stroke-width: 0.8px;
  }
  .tdd-hero__sub {
    font-size: 15px;
    margin-top: 14px;
  }
  .tdd-hero__content .tdd-btn {
    margin-top: 22px;
  }
  .tdd-hero__controls {
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    padding-top: 0;
    padding-bottom: 0;
    gap: 12px;
  }
  .tdd-hero__pagination {
    flex: 1;
    max-width: none;
  }
  .tdd-hero__navigation {
    gap: 6px;
  }
  .tdd-hero__count {
    display: none;
  }

  .tdd-about {
    padding-top: 20px;
  }

  .tdd-about__text .tdd-richtext,
  .tdd-research__text p {
    text-align: left;
  }

  .tdd-stats {
    padding: 44px 0;
  }
  .tdd-stats__grid {
    grid-template-columns: 1fr 1fr;
  }
  .tdd-stats__badge {
    grid-column: 1 / -1;
  }
  .tdd-stats__grid > :nth-child(odd) {
    border-left: 1px solid rgba(255, 255, 255, 0.25);
    padding-left: 20px;
  }
  .tdd-stats__grid > :nth-child(even) {
    border-left: 0;
    padding-left: 0;
  }
  .tdd-stats__grid > :first-child {
    border-left: 0;
    padding-left: 0;
  }
  .tdd-stats__badge-img {
    width: 70px;
    height: 70px;
  }

  .tdd-program {
    flex-direction: column;
    gap: 14px;
    padding: 24px 22px;
  }
  .tdd-program__more {
    margin-top: 0;
  }

  .tdd-majors {
    padding: 8px 8px 0;
  }
  .tdd-majors__frame {
    padding: 40px 0 44px;
    border-radius: 18px;
  }
  .tdd-majors__panels .tdd-slider__track {
    --per: 1.08;
    --gap: 12px;
  }
  .tdd-slider__foot {
    gap: 16px;
  }

  .tdd-research + .tdd-video .tdd-video__card {
    margin-top: -80px;
  }
  .tdd-research:has(+ .tdd-video) {
    padding-bottom: 80px;
  }
  .tdd-research:has(+ .tdd-video) .tdd-research__media {
    margin-bottom: -80px;
  }
  .tdd-video {
    padding-bottom: 60px;
  }
  .tdd-video__card {
    min-height: 460px;
    align-items: flex-end;
    border-radius: 18px;
  }
  .tdd-video__card::before {
    background: linear-gradient(
      0deg,
      rgba(10, 14, 82, 0.95) 10%,
      rgba(17, 22, 96, 0.55) 60%,
      rgba(20, 30, 110, 0.1)
    );
  }
  .tdd-video__content {
    padding: 28px 22px;
  }
  .tdd-play {
    width: 70px;
    height: 70px;
  }
  .tdd-play__icon {
    width: 28px;
    height: 28px;
  }

  .tdd-curve {
    height: 280px;
    --curve-depth: 80px;
    --curve-shift: 56px;
  }
  .tdd-curve__item {
    width: 180px;
  }
  .tdd-curve__prev {
    left: 12px;
  }
  .tdd-curve__next {
    right: 12px;
  }
  .tdd-arrow {
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
  }
  .tdd-arrow svg {
    width: 22px;
    height: 22px;
  }

  .tdd-events .tdd-slider__track {
    --per: 1.1;
    --gap: 14px;
  }

  .tdd-news__main {
    grid-template-columns: 1fr;
  }
  .tdd-news__main-media {
    aspect-ratio: 16 / 10;
  }
  .tdd-news__side {
    grid-template-columns: 1fr;
  }

  .tdd-form {
    padding: 24px 20px;
  }
  .tdd-form__row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .tdd-contact__inner {
    padding-top: 20px;
    padding-bottom: 40px;
  }
}

/* ---------- TDD Xanh bền vững ---------- */
.tdd-green {
  /* background: linear-gradient(180deg, #f5faf6 0%, #fff 100%); */
}
.tdd-green__head {
  text-align: center;
  margin-bottom: 32px;
}
.tdd-green__grid {
  display: grid;
  gap: 18px;
}
.tdd-green__grid--top {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.tdd-green__all {
  display: flex;
  justify-content: center;
  margin-top: 40px;
}
.tdd-green__grid--bottom {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 18px;
}
.tdd-green__card {
  position: relative;
  display: flex;
  overflow: hidden;
  isolation: isolate;
  border-radius: 12px;
  background: #fdf4e7;
  color: var(--tdd-dark);
  box-shadow: 0 12px 28px rgba(11, 40, 32, 0.11);
}
.tdd-green__card--portrait {
  min-height: 350px;
  aspect-ratio: 3 / 4;
  align-items: flex-end;
}
.tdd-green__card--landscape {
  min-height: 270px;
  aspect-ratio: 2 / 1;
  align-items: flex-end;
  justify-content: flex-end;
}
.tdd-green__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100% !important;
  max-width: none !important;
  object-fit: cover;
  transition: transform 0.8s var(--tdd-ease);
  z-index: 0;
}
.tdd-green__card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 50%;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(
    to bottom,
    rgba(253, 244, 231, 0) 0%,
    rgba(253, 244, 231, 0.8) 30%,
    rgba(253, 244, 231, 0.96) 62%,
    rgba(253, 244, 231, 0.99) 100%
  );
}
.tdd-green__card--landscape::after {
  left: auto;
  top: 0;
  width: 54%;
  height: 100%;
  background: linear-gradient(
    to right,
    rgba(253, 244, 231, 0) 0%,
    rgba(253, 244, 231, 0.75) 18%,
    rgba(253, 244, 231, 0.96) 52%,
    rgba(253, 244, 231, 0.99) 100%
  );
}
.tdd-green__card:hover .tdd-green__image {
  transform: scale(1.045);
}
.tdd-green__content {
  position: relative;
  z-index: 2;
}
.tdd-green__card--portrait .tdd-green__content {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 16px 20px 18px;
}
.tdd-green__card--landscape .tdd-green__content {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  max-width: 48%;
  padding: 18px 22px;
  text-align: right;
}
.tdd-green__logo {
  position: relative;
  isolation: isolate;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 70px;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  box-shadow:
    0 0 0 2px rgba(255, 255, 255, 0.8),
    0 0 16px rgba(234, 88, 12, 0.22);
}
.tdd-green__logo::before,
.tdd-green__logo::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border: 1.5px solid #ea580c;
  border-radius: 50%;
  box-shadow:
    0 0 10px rgba(234, 88, 12, 0.35),
    inset 0 0 6px rgba(234, 88, 12, 0.16);
  pointer-events: none;
  opacity: 0;
  animation: tdd-green-logo-ripple 3.2s cubic-bezier(0.2, 0.6, 0.35, 1) infinite;
}
.tdd-green__logo::after {
  animation-delay: -1.6s;
}
.tdd-green__logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 50%;
}
@keyframes tdd-green-logo-ripple {
  0% {
    transform: scale(1);
    opacity: 0;
  }
  12% {
    opacity: 0.6;
  }
  65% {
    opacity: 0.2;
  }
  100% {
    transform: scale(1.32);
    opacity: 0;
  }
}
.tdd-green__copy {
  min-width: 0;
}
.tdd-green__text {
  color: var(--tdd-dark);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
}
.tdd-green__desc {
  margin-top: 6px !important;
  color: #1e40a0;
  font-size: 13px;
  line-height: 1.45;
}
.tdd-green__desc > :first-child {
  margin-top: 0;
}
.tdd-green__desc > :last-child {
  margin-bottom: 0;
}
.tdd-green__desc p + p {
  margin-top: 0.5em;
}
.tdd-green__desc ul,
.tdd-green__desc ol {
  padding-left: 1.5em;
}
.tdd-green__desc ul {
  list-style: disc;
}
.tdd-green__card--landscape .tdd-green__desc {
  font-size: 14px;
}
.tdd-green__card--landscape .tdd-green__text {
  font-size: 17px;
}
@media (max-width: 1023px) {
  .tdd-green__grid--top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .tdd-green__card--portrait {
    aspect-ratio: 4 / 5;
  }
  .tdd-green__card--landscape {
    min-height: 300px;
  }
}
@media (max-width: 767px) {
  .tdd-green__grid--bottom {
    grid-template-columns: minmax(0, 1fr);
  }
  .tdd-green__card--landscape {
    aspect-ratio: auto;
    min-height: 280px;
    padding-top: 120px;
  }
  .tdd-green__card--landscape::after {
    inset: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
      to bottom,
      rgba(253, 244, 231, 0) 0%,
      rgba(253, 244, 231, 0.8) 45%,
      rgba(253, 244, 231, 0.96) 70%,
      rgba(253, 244, 231, 0.99) 100%
    );
  }
  .tdd-green__card--landscape .tdd-green__content {
    flex-direction: row;
    align-items: center;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    gap: 12px;
    padding: 16px;
    text-align: left;
    overflow-wrap: anywhere;
  }
  .tdd-green__card--landscape .tdd-green__logo {
    flex: 0 0 56px;
    width: 56px;
    height: 56px;
  }
}
@media (max-width: 575px) {
  .tdd-green__grid--top {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .tdd-green__card--portrait {
    min-height: 330px;
    aspect-ratio: 3 / 4;
  }
  .tdd-green__card--portrait .tdd-green__content {
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 14px 16px;
  }
  .tdd-green__text {
    font-size: 15px;
  }
  .tdd-green__card--landscape .tdd-green__text {
    font-size: 15px;
  }
  .tdd-green__card--landscape .tdd-green__desc {
    font-size: 13px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .tdd-green__logo::before,
  .tdd-green__logo::after {
    animation: none;
  }
  .tdd-green__image {
    transition: none;
  }
}

/* ---------- Tin Nghiên cứu khoa học ---------- */
.tdd-research-news {
  background:
    radial-gradient(
      circle at 92% 4%,
      rgba(247, 168, 35, 0.16),
      transparent 30%
    ),
    #f1f5fb;
}
.tdd-research-news__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 26px;
}
.tdd-research-news__heading {
  max-width: 760px;
}
.tdd-research-news__heading .tdd-label {
  margin-bottom: 10px;
}
.tdd-research-news__intro {
  max-width: 640px;
  margin-top: 14px !important;
  color: #52617a;
  font-size: 15px;
  line-height: 1.6;
}
.tdd-research-news__arrows {
  flex-shrink: 0;
  padding-bottom: 4px;
}
.tdd-research-news__arrows .tdd-arrow {
  border: 1px solid rgba(30, 64, 160, 0.26);
  border-radius: 50%;
  background: #fff;
  color: var(--tdd-primary);
}
.tdd-research-news__arrows .tdd-arrow:hover {
  border-color: var(--tdd-primary);
  background: var(--tdd-primary);
  color: #fff;
}
.tdd-research-news .tdd-slider__track {
  --per: 4;
  --gap: 18px;
  align-items: stretch;
}
.tdd-research-news .tdd-slider__viewport {
  margin: -8px -2px -24px;
  padding: 8px 2px 24px;
}
.tdd-research-news__card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid rgba(11, 34, 83, 0.12);
  border-radius: 8px;
  background: #002d99;
  box-shadow: 0 14px 32px -18px rgba(11, 34, 83, 0.4);
  transition:
    transform 350ms var(--tdd-ease),
    box-shadow 350ms var(--tdd-ease),
    border-color 350ms;
}
.tdd-research-news__card:hover {
  transform: translateY(-5px);
  border-color: var(--tdd-accent);
  box-shadow: 0 24px 44px -18px rgba(11, 34, 83, 0.48);
}
.tdd-research-news__media {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background:
    linear-gradient(145deg, rgba(247, 168, 35, 0.2), transparent 50%),
    var(--tdd-primary);
}
.tdd-research-news__media::after {
  content: "";
  position: absolute;
  inset: 50% 0 0;
  background: linear-gradient(transparent, rgba(11, 34, 83, 0.34));
  pointer-events: none;
}
.tdd-research-news__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 600ms var(--tdd-ease);
}
.tdd-research-news__card:hover .tdd-research-news__media img {
  transform: scale(1.055);
}
.tdd-research-news__number {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 50%;
  background: rgba(11, 34, 83, 0.62);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.tdd-research-news__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-height: 222px;
  padding: 20px;
}
.tdd-research-news__eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 9px;
  color: var(--tdd-accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.tdd-research-news__eyebrow::before {
  content: "";
  width: 16px;
  height: 2px;
  background: currentColor;
}
.tdd-research-news__body h3 {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  color: #fff;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.45;
}
.tdd-research-news__body h3 a:hover {
  color: var(--tdd-accent);
}
.tdd-research-news__body p {
  display: -webkit-box;
  overflow: hidden;
  margin-top: 9px;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  color: rgba(255, 255, 255, 0.73);
  font-size: 13px;
  line-height: 1.5;
}
.tdd-research-news__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 16px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 12px;
}
.tdd-research-news__meta a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 34px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--tdd-accent);
  color: var(--tdd-dark);
}
.tdd-research-news__meta a:hover {
  background: #fff;
}
.tdd-research-news__meta svg {
  width: 18px;
  height: 18px;
}
.tdd-research-news__empty {
  padding: 50px 24px !important;
  border: 1px dashed rgba(30, 64, 160, 0.3);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.74);
  color: #52617a;
  text-align: center;
}
.tdd-research-news__all {
  display: flex;
  justify-content: center;
  margin-top: 34px;
}
@media (max-width: 1023px) {
  .tdd-research-news .tdd-slider__track {
    --per: 2;
  }
}
@media (max-width: 767px) {
  .tdd-research-news__header {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
  }
  .tdd-research-news .tdd-slider__track {
    --per: 1;
  }
  .tdd-research-news__body {
    min-height: 210px;
  }
}

/* ---------- Đối tác doanh nghiệp ---------- */
.tdd-partners {
  background: #fff;
}
.tdd-partners__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 32px;
}
.tdd-partners__controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.tdd-partners [hidden] {
  display: none !important;
}
.tdd-home .tdd-partners__pause {
  display: none;
  margin: 0;
  padding: 8px 12px;
  min-height: 40px;
  border: 1px solid #e4e9f0;
  border-radius: 6px;
  background: #fff;
  color: var(--tdd-primary);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  text-transform: none;
  letter-spacing: 0;
}
.tdd-partners__viewport {
  overflow-x: auto;
  touch-action: pan-y;
}
.tdd-partners .is-ready .tdd-partners__viewport {
  overflow: hidden;
}
.tdd-partners__viewport:focus-visible,
.tdd-partners button:focus-visible {
  outline: 2px solid var(--tdd-accent);
  outline-offset: -2px;
}
.tdd-home .tdd-partners__track {
  --partners-per: 5;
  --partners-gap: 24px;
  display: flex;
  align-items: stretch;
  gap: var(--partners-gap);
  margin: 0;
  padding: 0;
  list-style: none;
  transition: transform 0.45s ease;
}
.tdd-home .tdd-partners__slide {
  flex: 0 0
    calc(
      (100% - (var(--partners-per) - 1) * var(--partners-gap)) /
        var(--partners-per)
    );
  min-width: 0;
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 10px;
  border: 1px solid #e4e9f0;
  border-radius: 10px;
  background: #fff;
}
.tdd-home .tdd-partners__slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  user-select: none;
}
@media (max-width: 1024px) {
  .tdd-home .tdd-partners__track {
    --partners-per: 3;
  }
}
@media (max-width: 600px) {
  .tdd-partners__header {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
  }
  .tdd-home .tdd-partners__track {
    --partners-per: 2;
    --partners-gap: 14px;
  }
  .tdd-home .tdd-partners__slide {
    height: 110px;
    padding: 14px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .tdd-home .tdd-partners__track {
    transition: none;
  }
}