.speaker-section {
  background: linear-gradient(115deg, #1b1765 0%, #2236b0 48%, #1f62e6 100%);
  padding: 50px 20px 80px;
}

.speaker-inner {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

/* Title */
.speaker-title {
  font-family: "Oxanium", sans-serif;
  font-size: 40px;
  font-weight: 800;
  margin-bottom: 100px; /* tăng khoảng cách với card/avatar */

  background: linear-gradient(90deg, #ff2a2a, #ff9a00);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* LIST */
.speaker-list {
  display: flex;
  justify-content: center;
  gap: 60px;
  flex-wrap: wrap;
}

/* CARD */
.speaker-card {
 position: relative;
  width: 320px;

  background: linear-gradient(180deg, #4b8be6, #3a78d4);
  border-radius: 28px;

  padding: 80px 28px 80px; /* ❗ tăng padding dưới + trái phải */

  display: flex;
  flex-direction: column;
  align-items: flex-start; /* ❗ bỏ center */
   box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

/* AVATAR */
.speaker-avatar {
  position: absolute;
  top: -65px;
  left: 50%;
  transform: translateX(-50%);
  width: 130px;
  height: 130px;
  border-radius: 50%;
  overflow: hidden;
  border: 6px solid #1b1765;
  position: absolute;
  top: -65px;
  left: 50%;
  transform: translateX(-50%);
}

.speaker-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* CONTENT */
.speaker-content h3 {
  font-family: "Oxanium", sans-serif;
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 14px;
  color: #0c2a5e;
}

.speaker-content ul {
  list-style: none;
  padding: 0;
  margin: 0;
  width: 100%;

}

.speaker-content li {
 font-size: 15px;
  color: #e6f0ff;

  line-height: 1.7; /* ❗ dễ đọc hơn */
  margin-bottom: 12px;

  padding-left: 22px; /* ❗ tạo khoảng bullet */
  position: relative;

  text-align: left; /* ❗ fix lệch */
}

/* bullet */
.speaker-content li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;

  width: 6px;
  height: 6px;
  border-radius: 50%;

  background: #ffffff;
}

/* LOGO BOTTOM */
.speaker-logo {
position: absolute;
  bottom: -45px;
  left: 50%;
  transform: translateX(-50%);

  width: 90px;
  height: 90px;
  border-radius: 50%;

  background: #fff;
}
.speaker-list {
  display: flex;
  justify-content: center;
  gap: 50px; /* ❗ giảm từ 60 → 50 cho cân */
}
.speaker-logo img {
  max-width: 70%;
}

/* empty circle */
.speaker-logo.empty {
  background: #ddd;
}
/*animation*/

/* ===== SCROLL REVEAL ===== */

.reveal-item {
  opacity: 0;
  transform: translateY(40px) scale(0.96);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}

/* Khi xuất hiện */
.reveal-section.is-visible .reveal-item {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Delay từng item (stagger đẹp hơn) */
.reveal-section.is-visible .reveal-item:nth-child(1) {
  transition-delay: 0.1s;
}

.reveal-section.is-visible .reveal-item:nth-child(2) {
  transition-delay: 0.25s;
}

.reveal-section.is-visible .reveal-item:nth-child(3) {
  transition-delay: 0.4s;
}

.reveal-section.is-visible .reveal-item:nth-child(4) {
  transition-delay: 0.55s;
}

/* ===== HOVER NHẸ ===== */

.speaker-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.speaker-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.25);
}

/* Avatar zoom nhẹ */
.speaker-avatar img {
  transition: transform 0.4s ease;
}

.speaker-card:hover .speaker-avatar img {
  transform: scale(1.05);
}

/* ===== MOBILE ===== */
@media (max-width: 768px) {
  .speaker-section {
    padding: 36px 12px 80px;
  }

  .speaker-title {
    font-size: 28px;
    line-height: 1.1;
    margin-bottom: 115px; /* tránh avatar đè title */
  }

  .speaker-list {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 145px; /* tránh logo card trên đè avatar card dưới */
  }

  .speaker-card {
    width: 100%;
    max-width: 360px;
    border-radius: 28px;
    padding: 115px 28px 95px;
    margin: 0;
  }

  .speaker-avatar {
    width: 120px;
    height: 120px;
    top: -70px;
    border-width: 7px;
  }

  .speaker-content h3 {
    font-size: 24px;
    text-align: left;
    margin-bottom: 24px;
  }

  .speaker-content li {
    font-size: 20px;
    line-height: 1.65;
    margin-bottom: 22px;
    padding-left: 26px;
    text-align: left;
  }

  .speaker-content li::before {
    top: 14px;
    width: 7px;
    height: 7px;
  }

  .speaker-logo {
    width: 92px;
    height: 92px;
    bottom: -46px;
  }
}