/* Chuyên gia / Ban lãnh đạo — mockup DTSVN */

.leader-sec {
  --leader-bg: #0a1d4d;
  --leader-photo-bg: #e2e6ec;
  --leader-text: #ffffff;
  --leader-role: rgba(255, 255, 255, 0.72);
  position: relative;
  width: 100%;
  margin: 0;
  background-color: var(--leader-bg);
  color: var(--leader-text);
  font-family: "Lexend", sans-serif;
}

.leader-sec .leader-sec__inner {
  width: 100%;
}

.leader-sec .leader-sec__title {
  margin: 0 0 clamp(32px, 5vw, 48px);
  font-size: clamp(1.75rem, 2.2vw + 0.55rem, 2.375rem);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--leader-text);
  opacity: 0;
  animation: leader-fade-up 0.72s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.leader-sec .leader-sec__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 28px);
  margin: 0;
  padding: 0;
  list-style: none;
}

/* Mobile: 1 cột */
@media (min-width: 480px) {
  .leader-sec .leader-sec__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* Tablet: 2 cột */
@media (min-width: 768px) {
  .leader-sec .leader-sec__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* Desktop: tối đa 3 / hàng (5 người → 3 + 2) */
@media (min-width: 1200px) {
  .leader-sec .leader-sec__grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: clamp(16px, 1.8vw, 24px);
  }
}

.leader-sec .leader-sec__item {
  margin: 0;
  padding: 0;
  opacity: 0;
  animation: leader-fade-up 0.68s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  animation-delay: calc(0.08s + (var(--leader-i, 0) * 0.07s));
}

.leader-sec .leader-sec__card {
  display: flex;
  flex-direction: column;
  height: 100%;
  margin: 0;
  text-decoration: none;
  color: inherit;
  transition: opacity 0.2s ease;
}

.leader-sec .leader-sec__card:hover {
  opacity: 0.92;
}

.leader-sec .leader-sec__card:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.65);
  outline-offset: 4px;
}

.leader-sec .leader-sec__photo {
  position: relative;
  display: block;
  width: 100%;
  margin: 0 0 clamp(12px, 1.5vw, 16px);
  background-color: var(--leader-photo-bg);
  background-repeat: no-repeat;
  background-size: cover;
  overflow: hidden;
}

.leader-sec .leader-sec__photo::before {
  content: "";
  display: block;
  padding-top: 118%;
}

.leader-sec .leader-sec__body {
  margin: 0;
  padding: 0;
}

.leader-sec .leader-sec__name {
  margin: 0 0 6px;
  font-size: clamp(0.9375rem, 0.85vw + 0.4rem, 1.125rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--leader-text);
}

.leader-sec .leader-sec__role {
  margin: 0;
  font-size: clamp(0.75rem, 0.65vw + 0.35rem, 0.875rem);
  font-weight: 400;
  line-height: 1.45;
  color: var(--leader-role);
}

.leader-sec .teambox__list {
  display: none !important;
}

@keyframes leader-fade-up {
  from {
    opacity: 0;
    transform: translate3d(0, 14px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}