header .nav-right .icon_menu_mobile {
  display: flex;
  gap: 5px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 10px;
  span {
    width: 100%;
    height: 2px;
    background: var(--color);
    transition: 0.25s;
  }
  &.is-open {
    span:first-child {
      transform: translateY(7px) rotate(45deg);
    }
    span:nth-child(2) {
      opacity: 0;
    }
    span:last-child {
      transform: translateY(-7px) rotate(-45deg);
    }
  }
}

header .nav-button .open {
  font-size: 20px;
  #primary-menu {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    li {
      display: flex;
      width: 100%;
      a {
        display: flex;
        width: 100%;
        position: relative;
        white-space: normal;
        padding: 15px 25px;
        border-bottom: 1px solid #ebebed;
        &:hover {
          color: var(--primary);
        }
      }
    }
  }
}
header .nav-button .open .current-menu-item > a {
  color: var(--primary);
}
.testimonial-section {
  /* max-width: 1200px; */
  margin: 0 auto;
  text-align: center;
  position: relative;
}

/* ==========================================================================
   3. AVATAR CURVE SECTION (ĐƯỜNG CONG VÀ AVATAR)
   ========================================================================== */
.avatar-curve-container {
  position: relative;
  width: 100%;
  height: 200px;
  margin-bottom: 30px;
  margin-top: -250px;
}

/* Đường cong SVG làm nền */
.curve-svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}
/* 
.avatars-list {
  position: relative;
  width: 100%;
  height: 100%;
  z-index: 2;
  .avatar-item:first-child {
    left: 15%;
    top: 180px;
  }
  .avatar-item:nth-child(2) {
    left: 32%;
    top: 305px;
  }
  .avatar-item:nth-child(3) {
    left: 50%;
    top: 355px;
  }
  .avatar-item:nth-child(4) {
    left: 68%;
    top: 310px;
  }
  .avatar-item:last-child {
    left: 85%;
    top: 185px;
  }
}

.avatar-item {
  position: absolute;
  transform: translate(-50%, -50%);
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

.avatar-item img {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  filter: grayscale(100%);
  transition: all 0.4s ease;
}
.avatar-item:hover img {
  filter: grayscale(0%);
  transform: scale(1.1);
}
.avatar-item.active {
  z-index: 10;
}
.avatar-item.active img {
  width: 145px;
  height: 145px;
  filter: grayscale(0%);
  border-width: 5px;
}
.cards-wrapper {
  width: 100%;
  overflow: hidden;
  margin: 17rem 0 0;
  position: relative;
}

.cards-track {
  display: flex;
  gap: 24px;
  transition: transform 0.45s cubic-bezier(0.25, 1, 0.5, 1);
  will-change: transform;
}
.testimonial-card {
  flex: 0 0 580px;
  background: #ffffff;
  border-radius: 16px;
  padding: 32px 28px;
  text-align: left;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
  border: 1px solid #eef0f4;
  opacity: 0.45;
  transform: scale(0.92);
  transition: all 0.45s cubic-bezier(0.25, 1, 0.5, 1);
  cursor: pointer;
  user-select: none;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 40px;
}
.testimonial-card:not(.active):hover {
  opacity: 0.75;
}
.testimonial-card.active {
  opacity: 1;
  transform: scale(1.03);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.08);
  border-color: #e2e8f0;
  cursor: default;
}
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}

.card-header h3 {
  font-size: 20px;
  font-weight: 700;
  color: #1a202c;
} */

.badge {
  background: #f1f5f9;
  color: #64748b;
  font-size: 11px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 20px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.content {
  color: #475569;
  font-size: 14.5px;
  line-height: 1.65;
  min-height: 110px;
  margin-bottom: 24px;
}

.card-footer {
  border-top: 1px solid #f1f5f9;
  padding-top: 16px;
  font-size: 13px;
  color: #94a3b8;
  line-height: 1.6;
}

.card-footer p {
  margin-bottom: 3px;
}

.card-footer strong {
  color: #64748b;
  font-weight: 600;
}
@media (max-width: 768px) {
  .header h2 {
    font-size: 28px;
  }

  .header p {
    font-size: 13.5px;
    padding: 0 15px;
  }

  .avatar-curve-container {
    height: 150px;
  }

  .avatar-item img {
    width: 100px;
    height: 100px;
  }

  .avatar-item.active img {
    width: 145px;
    height: 145px;
  }

  .testimonial-card {
    flex: 0 0 300px;
    padding: 24px 20px;
  }

  .card-header h3 {
    font-size: 17px;
  }

  .content {
    font-size: 13.5px;
    min-height: auto;
  }
}