* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.about__hero {
  margin-top: 136px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.title-section h1 {
  color: rgba(33, 33, 33, 1);
  font-family: Geist;
  font-style: Medium;
  font-size: 48px;
  font-weight: 500;
  line-height: 58px;
  letter-spacing: 0%;
  text-align: left;
  width: 488px;
  height: 124px;
}

.description-section p {
  color: rgba(74, 74, 74, 1);
  font-family: Geist;
  font-style: Regular;
  font-size: 14px;
  font-weight: 400;
  line-height: 20px;
  letter-spacing: 0%;
  text-align: left;
  width: 692px;
  height: 60px;
}

.content {
  margin-top: 135px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5px;
  margin-bottom: 80px;
}

.about__image {
  position: relative;
  width: 500px;
  height: 350px;
}

.about__image img {
  position: absolute;
  object-fit: cover;
  width: 387px;
  height: 258px;
}

.img-back {
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1;
  border-radius: 8px;
  filter: grayscale(100);
}

.img-front {
  bottom: 60px;
  right: -90px;
  width: 60%;
  z-index: 2;
  border-radius: 8 px;
}

.year-section {
  padding-top: 20px;
}

.year-label {
  color: rgba(96, 96, 96, 1);
  font-family: Geist;
  font-style: Regular;
  font-size: 16px;
  font-weight: 400;
  line-height: 22px;
  letter-spacing: 0%;
  text-align: left;
}

.year {
  color: rgba(33, 33, 33, 1);
  font-family: Geist;
  font-style: Medium;
  font-size: 32px;
  font-weight: 500;
  line-height: 38px;
  letter-spacing: 0%;
  text-align: left;
  margin-top: 8px;
}

.year-description {
  color: rgba(96, 96, 96, 1);
  font-family: Geist;
  font-style: Regular;
  font-size: 16px;
  font-weight: 400;
  line-height: 22px;
  letter-spacing: 0%;
  text-align: left;
  margin-top: 8px;
}

@media (max-width: 968px) {
  .container {
    padding: 40px 30px;
  }

  .header,
  .content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .title-section h1 {
    font-size: 36px;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 30px 20px;
  }

  .title-section h1 {
    font-size: 28px;
  }
}

.year__line {
  display: flex;
  margin-bottom: 100px;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding: 8px 12px;
  gap: 8px;
}

.years {
  margin-top: -60px;
  position: relative;
  background: none;
  border: none;
  font-size: 16px;
  color: #9e9e9e;
  cursor: pointer;
  padding-bottom: 12px;
  min-width: 160px;
  flex: 0 0 auto;
  margin: 0 12px 50px 0;
}

.years::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: #e0e0e0;
  border-radius: 2px;
}

.years.active {
  color: #1a4cff;
  font-weight: 500;
}

.years.active::after {
  background: #1a4cff;
}

/* hide native scrollbar for webkit */
.year__line::-webkit-scrollbar { display: none; }

/* content fade transition */
.year-section .year-description,
.content-section .description,
.content-section h1,
.content-section .feature-text {
  transition: opacity 280ms ease, transform 280ms ease;
}
.fade-out { opacity: 0; transform: translateY(6px); }
.fade-in { opacity: 1; transform: translateY(0); }

/* dragging state for the years row */
.year__line.dragging {
  cursor: grabbing;
  user-select: none;
}

.image-section img {
  width: 488px;
  height: 325px;
  border-radius: 8px;
  object-fit: cover;
  opacity: 0.9;
}

.content-section {
  flex: 1;
  min-width: 300px;
  padding: 60px 50px;
}

.description {
  color: #666;
  line-height: 1.8;
  margin-bottom: 40px;
  font-size: 1rem;
}

.features {
  list-style: none;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 25px;
  transition: transform 0.3s ease;
}

.feature-item:hover {
  transform: translateX(5px);
}

.icon {
  width: 24px;
  height: 24px;
  background: #2563eb;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 15px;
  flex-shrink: 0;
  position: relative;
  margin-top: 2px;
}

.images__about {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.icon::before {
  content: "✦";
  color: white;
  font-size: 14px;
}

.feature-text {
  color: #333;
  font-size: 1rem;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .container {
    flex-direction: column;
  }

  .content-section {
    padding: 40px 30px;
  }

  h1 {
    font-size: 1.8rem;
  }

  .image-section {
    min-height: 250px;
  }
}

.lic {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.card__lic h4 {
  color: rgba(33, 33, 33, 1);
  font-family: Geist;
  font-style: Medium;
  font-size: 16px;
  font-weight: 500;
  line-height: 22px;
  letter-spacing: 0%;
  text-align: left;
  margin-bottom: 72px;
}

.lic__title h3 {
  color: rgba(33, 33, 33, 1);
  font-family: Geist;
  font-style: Medium;
  font-size: 32px;
  font-weight: 500;
  line-height: 38px;
  letter-spacing: 0%;
  text-align: left;
  margin-bottom: 36px;
  margin-top: 144px;
}

.leaders {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #ffffff;
  padding: 40px 20px;
}

.info__leaders {
  margin-bottom: 50px;
}

.info__leaders h4 {
  font-size: 16px;
  color: #2f80ed;
  font-weight: 600;
  margin-bottom: 10px;
}

.info__leaders h3 {
  font-size: 32px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 15px;
}

.info__leaders p {
  font-size: 16px;
  line-height: 1.7;
  color: #555;
  max-width: 850px;
}

.all__learders {
  padding: 80px 20px;
  background: #f9fafb;
}

.all__leaders__title {
  text-align: center;
  margin-bottom: 50px;
}

.all__leaders__title h3 {
  font-size: 28px;
  font-weight: 600;
  color: #111827;
}

.card__leaders {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 30px;
}

.leader__card {
  background: #ffffff;
  border-radius: 16px;
  padding: 30px 20px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.leader__avatar {
  width: 110px;
  height: 110px;
  margin: 0 auto 20px;
  border-radius: 50%;
}

.leader__card h4 {
  font-size: 16px;
  font-weight: 600;
  color: #111827;
  margin-bottom: 6px;
}

.leader__card p {
  font-size: 14px;
  color: #6b7280;
}

.clients {
  padding: 90px 0;
  background: #fff;
  font-family: "Inter", sans-serif;
}

.clients__year {
  color: #2f55ff;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 10px;
}

.clients__title {
  font-size: 28px;
  font-weight: 700;
  margin: 40px 0 25px;
  color: #111;
}
.clients__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 40px 60px;
  align-items: center;
}
.clients__grid2 {
  display: flex;
  gap: 91px;
  align-items: center;
}
.clients__grid3 {
  display: flex;
  flex-wrap: wrap;
  gap: 91px;
  align-items: center;
}
.clients__grid4 {
  display: flex;
  flex-wrap: wrap;
  gap: 91px;
  align-items: center;
}
.clients__grid5 {
  display: flex;
  flex-wrap: wrap;
  gap: 91px;
  align-items: center;
}

.clients__grid img {
  object-fit: contain;
  opacity: 0.8;
  transition: all 0.3s ease;
}

.clients__grid img:hover {
  transform: scale(1.05);
}