:root {
        --body-font-family:             'Montserrat', sans-serif;
    }
    body {
      margin: 0;
      font-family: 'Montserrat', sans-serif ;
      background: linear-gradient(to bottom, #fff0e1, #fdf5df);
      color: #4a1a1a;
    }
    h3{
      font-family: var(--body-font-family) !important;
    }
    p{
      font-weight: normal !important;
    }

    .header {
      background-color: #7e002d;
      color: white;
      padding: 15px 30px;
      font-size: 1.5em;
    }

    .header .tedx {
      color: #ff2b06;
      font-weight: bold;
    }

    .header .youth {
      color: #ffffff;
      font-weight: bold;
    }

    .page-wrapper {
      padding: 20px 20px;
      width: 100%;
      height: 70%;
      background-image: url("../images/index/back.png");
      background-size: cover;
      background-position: left center;
      background-repeat: no-repeat;
    }

    .main-title {
      font-size: 3em;
      color: #b43f3f;
      margin: 20px 0;
      text-shadow: 2px 2px #f6dcdc;
    }
    .infbuy{
        display: flex;
        flex-direction: column;
        align-items: center;
        max-width: 600px;
    }

    .btnn{
      display: flex;
      flex-direction: row;
      align-items: center;
      width: 100%;
      justify-content: center;
    }

    .buy-btn {
      display: block;
      margin: 20px auto 20px;
      padding: 10px 30px;
      background: linear-gradient(140deg, #ab1e1e47, #ab1e1e29);
      -webkit-backdrop-filter: blur(20px);
      backdrop-filter: blur(10px);
      box-shadow: 2px 4px 2px 0 rgba(0, 0, 0, 0.37);
      border: 1px solid rgba(255, 255, 255, 0.18);
      border-radius: 32px;
      font-size: 1.2em;
      font-weight: bold;
      color: #6a1a1a;
      cursor: pointer;
      transition: 0.3s ease;
            text-decoration: none; /* Bỏ gạch chân */
        /* Dùng màu chữ giống phần tử cha */
      cursor: pointer; 
    }

    .buy-btn:hover {
      transform: scale(1.05);
      box-shadow: 4px 4px 12px rgba(0,0,0,0.3);
      color: #5f1515b6;
    }
    .tquan{
      display: flex;
      align-items: flex-end;
      justify-content: space-around;
      min-width: 100%;
    }

    .left-head {
    display: flex;
    flex-direction: column;
 
    }


.info-box {
  width: 100%;           /* hoặc chiều ngang bạn muốn */
  padding: 25px;         /* tạo khoảng cách trong */
  box-sizing: border-box;/* giúp padding không làm tràn khung */
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0));
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(10px);
  box-shadow: 4px 8px 20px 0 rgba(0, 0, 0, 0.37);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 32px;
  line-height: 1.5;
  font-size: 16px;
  font-family: var(--body-font-family) !important;
  /* KHÔNG có height cố định! */
  /* height: auto; là mặc định rồi, không cần ghi cũng được */
}

    .silhouettes {
      position: relative;
      width: 40%;
      min-height: 430px;
      max-width: 350px;
      min-width: 350px;
    }

    .silhouettes img {
      position: absolute;
      /* width: 200px; */
      transition: transform 0.3s;
    }

    .silhouettes img:hover {
      transform: scale(1.05);
      z-index: 10;
    }

    .person1 { top: 8px; left: 30%; z-index: 1;}
    .person2 { top: 50px; left: 0px; z-index: 3; }
    .person3 { top: 50px; right:  0px; z-index: 3; }
    .person4 { top: 205px; right: 40px; z-index: 4; }
    .person5 { top: 200px; left: 40px; z-index: 4;}

    .ted-tquan{
      padding: 0px !important;
      margin-top: 20px;
    }
    .ted-buttons{
      margin: 0px !important;
    }

.timeline-section {
  padding: 70px 20px;
  max-width: 1000px;
  margin: auto;
}

.timeline-title {
  text-align: center;
  font-size: 3em;
  margin-bottom: 40px;
  color: #7e002d;
}

.timeline-alt {
  position: relative;
  margin: 0 auto;
  padding: 20px 0;
}

.timeline-alt::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  background: #d32f2f;
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: 20px 30px;
  box-sizing: border-box;
}

.timeline-item.left {
  left: 0;
  text-align: right;
}

.timeline-item.right {
  left: 50%;
  text-align: left;
}

.timeline-item .content {
  padding: 15px 20px;
  position: relative;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0));
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 15px;
}

.timeline-item.left .content::after {
  content: '';
  position: absolute;
  top: 20px;
  right: -10px;
  border-width: 10px;
  border-style: solid;
  border-color: transparent transparent transparent #fff6f6;
}

.timeline-item.right .content::after {
  content: '';
  position: absolute;
  top: 20px;
  left: -10px;
  border-width: 10px;
  border-style: solid;
  border-color: transparent #fff6f6 transparent transparent;
}

.timeline-item h3 {
  margin: 0 0 5px;
  color: #d32f2f;
  font-size: 20px;
}

.timeline-item p {
  margin: 0;
  font-size: 20px;
      font-weight: 500 !important;
}

/* Responsive */
@media (max-width: 768px) {
  .timeline-item {
    width: 100%;
    padding-left: 60px;
    padding-right: 60px;
    text-align: left !important;
  }

  .timeline-item.left, .timeline-item.right {
    left: 0;
  }

  .timeline-alt::before {
    left: 20px;
  }

  .timeline-item .content {
    margin-left: 40px;
  }

  .timeline-item.left .content::after,
  .timeline-item.right .content::after {
    left: -10px;
    right: auto;
    border-color: transparent #fff6f6 transparent transparent;
  }
}
.timeline-item::before {
  content: '';
  position: absolute;
  top: 30px;
  width: 18px;
  height: 18px;
  background-color: #d32f2f;
  border: 3px solid white;
  border-radius: 50%;
  box-shadow: 0 0 0 4px #f9c4c4;
  z-index: 1;
}

.timeline-item.left::before {
  right: -9px;
}

.timeline-item.right::before {
  left: -9px;
}
  .eb{
    max-width: 60vh;
  }
@media (min-width: 1290px) {
  .page-wrapper {
      padding: 20px 120px;
    }
}

@media (min-width: 1130px) {
  .silhouettes img{
    width: 200px;
  }
  .silhouettes {
    min-height: 500px;
    min-width: 450px;
}

}
/* responsive fix: icon dời qua trục trái */
@media (max-width: 768px) {
  .timeline-item::before {
    left: 11px !important;
    right: auto;
  }

}
@media (max-width: 1050px) {
  .page-wrapper {
    padding: 20px;
    background-position: center;
  }

  .tquan {
    flex-direction: column;
    align-items: center;
  }

  .left-head {
    width: 100%;
    align-items: center;
  }

  .main-title {
    font-size: 2.6em;
  }


  /* .info-box {
    height: 40vh;
  } */

  /* Không thay đổi kích thước silhouettes */
  .silhouettes {
    width: 100%; /* giữ nguyên khối */
    height: 430px;
    overflow: hidden;
    position: relative;
  }
}

@media (max-width: 770px) {
  .ted-container{
    padding: 30px 0px !important;
  }
}

@media (min-width: 576px) {
  .ted-buttons {
      flex-direction: row !important;
  }
}

@media (max-width: 585px) {
.highlight::before{
  height: 2.5em !important;
}

}

@media (max-width: 576px) {
    .btnn{
    flex-direction: column;
  }
   .timeline-item .content{
    margin-left: 5px;
  }
  .header {
    font-size: 1.2em;
    padding: 10px 20px;
    text-align: center;
  }


  .main-title {
    font-size: 2.6em;
  }
  .eb{
    max-width: 50vh;
  }
    /* .info-box {
      height: 45vh;
    } */
  /* Cho phép cuộn ngang nếu không đủ chỗ */
  /* .silhouettes {
    width: 500px;
    height: 400px;
    overflow-x: auto;
  } */

 .ted-arrow{
  display: block !important;
 }
 .ted-left, .ted-right {
  display: none !important;
 }

  .ted-buttons {
  
    align-items: center;
    margin-bottom: 20px;
  }

  .ted-button {
    font-size: 0.9em;
    padding: 8px 16px;
  }

  .ted-arrow {
    margin-top: 5px;
  }
}


@media (max-width: 420px) {

  .eb{
    max-width: 38vh;
  }
  .main-title {
    font-size: 2.4em;
  }
    .buy-btn {
       padding: 10px 25px;
      font-size: 0.9em;
      margin: 15px auto 15px;
    }

}

@media (max-width: 390px) {
  .timeline-item h3, .timeline-item p{
    font-size: 16px;
  }
 .highlight::before{
  height: 3em !important;
}

.silhouettes {

    max-width: 330px;
    min-width: 290px;
}
  .person1 { top: 8px; left: 25%; z-index: 1;}
  .person2 { top: 50px; left: 0px; z-index: 3; }
  .person3 { top: 50px; right:  0px; z-index: 3; }
  .person4 { top: 195px; right: 10px; z-index: 4; }
  .person5 { top: 190px; left: 10px; z-index: 4;}
}

.ted-arrow{
  display: none;
 }
.ted-left, .ted-right {
  display: block;
}


.ted-left, .ted-right {
    font-size: 35px;
    display: inline-block;
    color: #000; /* tùy chỉnh màu */
    margin: 0 10px;
    vertical-align: middle;
}

.ted-left {
    animation: bounce-left 1s infinite;
    margin-right: 10px;
}

.ted-right {
    animation: bounce-right 1s infinite;
    margin-left: 10px;
}

/* Hiệu ứng nhún nhảy theo chiều ngang */
@keyframes bounce-left {
  0%, 100% {
    transform: translateX(0);
    opacity: 1;
  }
  50% {
    transform: translateX(10px);
    opacity: 0.5;
  }
}

@keyframes bounce-right {
  50% {
    transform: translateX(0);
    opacity: 0.5;
  }
  0%, 100% {
    transform: translateX(10px);
    opacity: 1;
  }
}
.timeline-item {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

.timeline-item.show {
  opacity: 1;
  transform: translateY(0);
}
.timeline-item:nth-child(1) { transition-delay: 0s; }
.timeline-item:nth-child(2) { transition-delay: 0.1s; }
.timeline-item:nth-child(3) { transition-delay: 0.2s; }
.timeline-item:nth-child(4) { transition-delay: 0.3s; }
.timeline-item:nth-child(5) { transition-delay: 0.4s; }

.head {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 30px;
  text-align: center;
}


.eb {
  max-width: 500px;
  height: auto;
  margin-left: 30px;
}

/* Responsive cho tablet */
@media (max-width: 768px) {
  .main-title {
    font-size: 2.2em;
  }

  .eb {
    max-width: 150px;
  }
}

/* Responsive cho mobile */
@media (max-width: 480px) {
  .main-title {
    font-size: 1.8em;
  }

  .eb {
    max-width: 120px;
  }

  .head {
    flex-direction: column;
    gap: 10px;
  }
  .hero-section h2{
    font-size: 2.4em !important;
  }
}