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

body {
  font-family: Arial, sans-serif;
  background: #fff;
}

.header {
  width: 100%;
  background: #fff;
  padding: 12px 24px;
}

.header-container {
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;

  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
}

/* Logo chính */
.main-logo {
  flex: 0 0 auto;
}

/*.main-logo img {
  display: block;
  height: 150px;
  width: auto;
}*/

/* Logo chính nhỏ lại nhẹ */
.main-logo img {
  height: 130px;   /* từ 150 → 130 */
}
/* Group */
.group {
  position: relative;
  flex: 0 0 auto;

  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;

  min-width: 210px;
  padding: 0 22px;
}

/* Divider */
.group:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  width: 1px;
  height: 70px;   
  background: #2f7eea;
  opacity: 0.9;
}

/* Title */
.group-title {
  display: inline-flex;
  align-items: center;
  justify-content: center;

  width: auto;
  max-width: 100%;

  padding: 6px 14px;   /* giảm padding */
  margin-bottom: 12px; /* giảm chiều cao header */

  border-radius: 999px;
  background: linear-gradient(180deg, #2f86f7 0%, #115fd6 100%);
  color: #fff;

  font-size: 13px;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  white-space: nowrap;
}

/* nếu title dài hơn */
.group-title.long {
  white-space: normal;
  max-width: 300px;
  padding-left: 16px;
  padding-right: 16px;
}

/* Logos */
.logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
}

.logos img {
  display: block;
  width: auto;
  max-width: 140px;
  max-height: 56px;    /* từ 64 → 56 */
  object-fit: contain;
}

/* chỉnh riêng từng logo nếu cần 
.logo-skhcn {
  max-height: 62px;
}

.logo-dxc {
  max-height: 52px;
}

.logo-hca {
  max-height: 56px;
}

.logo-startup {
  max-height: 56px;
}

.logo-nim {
  max-height: 60px;
}*/
/* Tinh chỉnh từng logo theo thị giác */

/* Logo tròn / nhiều chi tiết → để lớn hơn */
.logo-skhcn {
  height: 58px;
}

/* Logo chữ → nhỏ lại */
.logo-dxc {
  height: 48px;
}

/* Logo đơn giản → trung bình */
.logo-hca {
  height: 52px;
}

.logo-startup {
  height: 50px;
}

/* Logo nền đậm → hơi lớn hơn */
.logo-nim {
  height: 54px;
}

/* ===== Large desktop ===== */
@media (min-width: 1440px) {
  .header-container {
    max-width: 1400px;
    gap: 40px;
  }

  .main-logo img {
    height: 162px;
  }

  .group {
    min-width: 225px;
    padding: 0 24px;
  }

  .group-title {
    font-size: 15px;
    padding: 9px 20px;
  }

  .logos {
    gap: 28px;
  }

  .logos img {
    max-height: 68px;
    max-width: 150px;
  }
}

/* ===== Laptop / small desktop ===== */
@media (max-width: 1199px) {
  .header {
    padding: 10px 18px;
  }

  .header-container {
    max-width: 1140px;
    gap: 22px;
  }

  .main-logo img {
    height: 128px;
  }

  .group {
    min-width: 180px;
    padding: 0 16px;
  }

  .group:not(:last-child)::after {
    height: 70px;
  }

  .group-title {
    font-size: 12px;
    padding: 7px 14px;
    margin-bottom: 14px;
  }

  .group-title.long {
    max-width: 220px;
  }

  .logos {
    gap: 18px;
  }

  .logos img {
    max-height: 52px;
    max-width: 110px;
  }
}

/* ===== Tablet ===== */
@media (max-width: 991px) {
  .header {
    padding: 8px 12px;
  }

  .header-container {
    max-width: 100%;
    gap: 12px;
    justify-content: space-between;
  }

  .main-logo img {
    height: 92px;
  }

  .group {
    flex: 1 1 0;
    min-width: 0;
    padding: 0 8px;
  }

  .group:not(:last-child)::after {
    height: 52px;
  }

  .group-title {
    font-size: 10px;
    padding: 6px 10px;
    margin-bottom: 10px;
  }

  .group-title.long {
    max-width: 160px;
  }

  .logos {
    gap: 10px;
    flex-wrap: nowrap;
  }

  .logos img {
    max-height: 34px;
    max-width: 72px;
  }
}

/* ===== Mobile ===== */
@media (max-width: 767px) {
  .header {
    padding: 6px 8px;
  }

  .header-container {
    gap: 6px;
    justify-content: space-between;
  }

  .main-logo img {
    height: 58px;
  }

  .group {
    flex: 1 1 0;
    min-width: 0;
    padding: 0 4px;
  }

  .group:not(:last-child)::after {
    height: 34px;
  }

  .group-title {
    font-size: 7px;
    padding: 4px 6px;
    margin-bottom: 6px;
    border-radius: 999px;
  }

  .group-title.long {
    max-width: 105px;
    line-height: 1.1;
  }

  .logos {
    gap: 4px;
  }

  .logos img {
    max-height: 18px;
    max-width: 42px;
  }
}

/* ===== Very small phones ===== */
@media (max-width: 480px) {
  .main-logo img {
    height: 50px;
  }

  .group {
    padding: 0 3px;
  }

  .group-title {
    font-size: 6px;
    padding: 3px 5px;
    margin-bottom: 5px;
  }

  .group-title.long {
    max-width: 92px;
  }

  .logos img {
    max-height: 16px;
    max-width: 36px;
  }

  .group:not(:last-child)::after {
    height: 28px;
  }
}