html {
    scroll-behavior: smooth; /* cuộn mượt */
    -webkit-overflow-scrolling: touch;
    overflow-x: hidden;
  }

body {
  margin: 0;
  font-family: "Lexend", sans-serif;
  color: #393E46;
  overflow-x: hidden;

  background:
    linear-gradient(#F5F5F5 1px, transparent 1px),
    linear-gradient(90deg, #F5F5F5 1px, transparent 1px);
  background-size: 25px 25px;
  background-color: #fff;
}

    .reveal {
        opacity: 0;
        transition: all 1.0s ease;
        will-change: opacity, transform;
      }

      /* Xuất phát từ bên trái */
      .reveal.rleft {
        transform: translateX(-50px);
      }

      /* Xuất phát từ bên phải */
      .reveal.rright {
        transform: translateX(50px);
      }

      .reveal.rbottom {
        transform: translateY(50px);
      }

      /* Khi phần tử vào vùng nhìn thấy */
      .reveal.visible {
        opacity: 1;
        transform: translateX(0);
      }

      /* Giảm chuyển động cho người dùng chọn reduce motion */
      @media (prefers-reduced-motion: reduce) {
        .reveal {
          transition: none;
          transform: none;
          opacity: 1;
        }
      }


    .color-1 {color: #393E46 !important;}
    .color-2 {color: #50555D !important;}
    .color-3 {color: #676C74 !important;}
    .color-4 {color: #7E838B !important;}
    .color-5 {color: #959AA2 !important;}
    .color-red { color:#EE4A62 !important; }
    .color-green { color:#25B9A0 !important; }
    .color-yellow { color:#FCC61D !important; }
    .color-orange { color:#FF853F !important; }
    .color-blue { color:#15C1FA !important; }
    .color-white { color:#fff !important; }
    .bg_xam{background:   #F0F4F5 !important  ;}

  
    .fw-1 { font-weight: 100 !important; } /* Thin */
    .fw-2 { font-weight: 300 !important; } /* Light */
    .fw-3 { font-weight: 400 !important; } /* Regular */
    .fw-4 { font-weight: 500 !important; } /* Medium */
    .fw-5 { font-weight: 600 !important; } /* Semi-bold */
    .fw-6 { font-weight: 700 !important; } /* Bold */
    .font-size-11 { font-size: 11px !important; }
    .font-size-12 { font-size: 12px !important; }
    .font-size-13 { font-size: 13px !important; }
    .font-size-14 { font-size: 14px !important; }
    .font-size-15 { font-size: 15px !important; }
    .font-size-16 { font-size: 16px !important; }
    .font-size-17 { font-size: 17px !important; }
    .font-size-18 { font-size: 18px !important; }
    .font-size-19 { font-size: 19px !important; }
    .font-size-20 { font-size: 20px !important; }
    .font-size-24 { font-size: 24px !important; }
    .font-size-28 { font-size: 28px !important; }
    .font-size-36 { font-size: 36px !important; }
    .font-size-40 { font-size: 40px !important; }
    .font-size-48 { font-size: 48px !important; }
    .border1 { border:1px dashed #ccc !important; }
    .border_top1 { border-top:1px solid #e9e9e9; }
    .border_right1 { border-right:1px solid #e9e9e9; }
    .border_bottom1 { border-bottom:1px solid #e9e9e9; }

        /* Trạng thái Mobile-------------------------------------------------------------------------------------------*/
      @media (max-width: 1399px) {
      .float-object { display:none; }
      }

    @media (max-width: 1199px) {
      .navbar-brand { margin-left: 10px; padding:0px 25px 0px 7px; } /* Logo */
      .selected-nav { border-bottom: 0px !important; color:#393E46; }
      .nav-item { border-bottom: 0px !important; padding-left: 15px;}
      .nav-item:hover {  padding-left: 15px; }
      .navbar-nav {gap: 0px; padding-left: 10px; padding-top: 10px;}
      .btn-get-started {margin-left: 25px;}

      .container { padding: 0px 10px;}

      .float-right{ float:right; }
      .gioi-thieu { margin-top:0px !important; }
      .row { padding-left: 20px !important; padding-right: 20px !important; }
      .margin_top_md{ margin-top:20px !important; } 
      .gap_mobile {padding-bottom: 50px !important;}
      .mb_left { margin-left:0px !important; }
      .margin_top_mb { margin-top:40px !important;  }
      .margin_top_mb_50 { margin-top:0px !important;  }
      .margin_top_am_250 { margin-top:20px !important; }
          .font-size-20 { font-size: 20px !important; }
      .font-size-24 { font-size: 20px !important; }
      .font-size-28 { font-size: 22px !important; }
      .font-size-36 { font-size: 28px !important; }
      .font-size-40 { font-size: 36px !important; }
      .font-size-48 { font-size: 40px !important; }
      .mobi_font_size_14 { font-size: 12px !important; }
      .mobi_font_size_16 { font-size: 14px !important;}
      .mobi_no_padding { padding:0px !important; }
        #backToTop {
          position: fixed;
          bottom: 15px !important;
          right: 15px !important;
          padding: 4px 13px 10px 8px !important;
          font-size: 12px !important;
        }
        #backToTop span { width:0.7em !important; height:0.7em !important; font-size:16px !important; }
      .mobi_px_100 { padding-left:20px !important; padding-right:20px !important; }  
      .mobi_px_50 { padding-left:20px !important; padding-right:20px !important; } 

    
    }

    .mobi_no_padding {}
    .mobi_px_100 {padding-left: 100px; padding-right: 100px;}
    .mobi_px_50 {padding-left: 50px; padding-right: 50px;}
    .margin_top_md_50{ margin-top:50px; }
    .margin_top_md{ margin-top:100px; }
    .mobi_font_size_16 { font-size: 16px;}
    .mobi_font_size_14 { font-size: 14px; }
    .bg-green_nhat { background:#F0FBF8 !important; } 
    .bg-orange_nhat { background:#FDF7F3 !important; }
    .bg-blue_nhat { background:#F1F9FC !important; } 
    .gioi-thieu { margin-top:100px;}
    .gap_mobile {padding-bottom: 150px;}

    /* Header---------------------- */
    .text-logo{
      font-size: 18px;
      color: #211F20;
      font-weight: 500 !important;
      line-height: 1.1;
    }
    .navbar {
      background-color: none !important; /* nền trắng */
      padding-top:5px !important;
      padding-bottom:5px !important;
    }
    .navbar-nav {gap: 10px;}
    .navbar-brand span {font-weight: 500;}
    .navbar-toggler {border: none;}
    .navbar-toggler:focus {box-shadow: none;}
    .nav-item {
      padding-left: 10px;
      padding-right: 10px;
      font-weight: 500;
    }
    .selected-nav {border-bottom: 2px solid #393E46 !important; color: #25B9A0;}
    .nav-item:hover {
      border-bottom: 2px solid #393E46;
      padding-left: 10px;
      padding-right: 10px;
      color: #25B9A0;
    }

.container {background: none; padding: 0px; font-family: "Lexend", sans-serif;}

/* Nav qmặc định: trong flow (không fixed) */
    nav {
      position: relative;
      width: 100%;
      z-index: 1000;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
      background: rgba(255, 255, 255, 0.3) !important; /* bạn muốn trong suốt */
      box-shadow: 0 6px 15px rgba(0,0,0,0.08);
      border-radius: 0px !important;
      padding: 10px 0px !important;
      backdrop-filter: blur(8px);
      color:#393E46 ;

    }

    /* Khi nav được fix lên top ------------------------------------*/
    nav.nav--fixed {
      position: relative;
      border-radius: 0px;
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      width: 100%;
      z-index: 1000;
      background: #fff !important; /* nếu muốn trong suốt hoàn toàn, để none */
      backdrop-filter: blur(8px);
      box-shadow: 0 6px 15px rgba(0,0,0,0.08);
      transform: translateY(-100%);
      animation: navSlideDown 1.0s forwards;
    }

    @keyframes navSlideDown {
      from { transform: translateY(-100%); }
      to   { transform: translateY(0); }
    }
    .nav-placeholder { display: none; width:100%; height:0; }
    .nav-placeholder.active { display:block; }


/* button_kh vòng border lan tỏa -------------------------------------------------------*/
.button_kh_nav {
  font-family: "Lexend", sans-serif;
  position: relative;
  display: inline-block;
  padding: 10px 18px;
  background: #25B9A0;
  color: white;
  border: none;
  border-radius: 5px;
  font-size: 16px;
  cursor: pointer;
  transition: transform .15s ease;
  text-decoration: none;
  margin-left: 15px;
  z-index: 2;
  overflow: visible;
}

.button_dk_tai_lieu {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  background: #25B9A0;
  color: white;
  border: none;
  border-radius: 5px;
  font-size: 16px;
  cursor: pointer;
  transition: transform .15s ease;
  text-decoration: none;
  z-index: 2;
  overflow: visible;
}

/* Trạng thái loading */
.button_dk_tai_lieu.loading {
  color: transparent; /* ẩn text nhưng giữ nguyên kích thước button */
}

/* Spinner nằm chính giữa */
.button_dk_tai_lieu.loading::after {
  content: "";
  position: absolute;
  top: 30%;
  left: 45%;
  width: 18px;
  height: 18px;
  border: 2px solid #fff;
  border-top-color: transparent;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation: spin 0.8s linear infinite;
  pointer-events: none;
}

/* Animation xoay */
@keyframes spin {
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

.button_kh {
  position: relative;
  display: inline-block;
  padding: 12px 45px;
  background: #25B9A0;
  color: white;
  border: none;
  border-radius: 45px;
  font-size: 18px;
  cursor: pointer;
  transition: transform .15s ease;
  text-decoration: none;
  margin-left: 15px;
  z-index: 2;
  overflow: visible;
}
.button_kh::before,
.button_kh::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 100%;
  height: 100%;
  border-radius: 40px;
  border: 1px solid rgba(26, 182, 157, 0.8); /* halo viền */
  transform: translate(-50%, -50%) scale(1);
  opacity: 0;
  pointer-events: none;
}
.button_kh::before { animation: borderHalo 2s infinite;}
.button_kh::after { animation: borderHalo 2s infinite; animation-delay: 1.5s;}
@keyframes borderHalo {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.7;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.8);
    opacity: 0;
  }
}

.button_kh_white {
  position: relative;
  display: inline-block;
  padding: 12px 45px;
  background: #fff;
  color: #25B9A0;
  border: none;
  border-radius: 10px;
  font-size: 16px;
  cursor: pointer;
  transition: transform .15s ease;
  text-decoration: none;
  z-index: 2;
  overflow: visible;
}
.button_kh_white::before,
.button_kh_white::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 100%;
  height: 100%;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.8); /* halo viền */
  transform: translate(-50%, -50%) scale(1);
  opacity: 0;
  pointer-events: none;
}
.button_kh_white::before { animation: borderHalo 2s infinite;}
.button_kh_white::after { animation: borderHalo 2s infinite; animation-delay: 1.5s;}
@keyframes borderHalo {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.7;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.8);
    opacity: 0;
  }
}

/* Animation ảnh di chuyển theo trỏ chuột và xoay ảnh tại chỗ------------------------------------------------ */
.float-object { pointer-events: none; transition: transform 0.8s ease-out;}
.float-object img {display: block; transform-origin: center; }
.spin img { animation: spin 4s linear infinite;}
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}



  /* Nút Back to Top ---------------------------------------------------------*/
  #backToTop {
    position: fixed;
    bottom: 40px;
    right: 40px;
    display: none;
    background-color: #EE4A62; 
    color: #fff;
    border: 1px solid #EE4A62;
    padding: 12px 13px;
    border-radius: 26px;
    cursor: pointer;
    font-size: 16px;
    box-shadow: 0 3px 6px rgba(0,0,0,0.2);
    transition: background-color 0.3s;
    z-index: 1000;
  }

  #backToTop span { width:1em; height:1em; }


  /* Shape biến đổi màu ---------------------------------------------------------*/

  .shape_change {
    height: 250px;
  position: relative;
  border-radius: 15px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

  .shape_orange { background: #FDEDEF;}
  .shape_green { background: #F0FBF8;}
  .shape_blue { background: #F1F9FC;}

/* overlay chứa 5 shape */
.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  z-index: 0;
}

/* mỗi shape là một cột */
.overlay_green span {
  flex: 1;
  background: #25B9A0; /* xanh đậm */
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.3s ease-in-out;
}
.overlay_blue span {
  flex: 1;
  background: #15C1FA; /* xanh đậm */
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.3s ease-in-out;
}
.overlay_orange span {
  flex: 1;
  background: #EE4A62; /* xanh đậm */
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.3s ease-in-out;
}

/* hiệu ứng delay cho từng shape */
.overlay span:nth-child(1) { transition-delay: 0s; }
.overlay span:nth-child(2) { transition-delay: 0.1s; }
.overlay span:nth-child(3) { transition-delay: 0.2s; }
.overlay span:nth-child(4) { transition-delay: 0.3s; }


/* khi hover: tất cả shape mở rộng dần */
.shape_change:hover { color: #fff !important;}
.shape_change:hover span { color: #fff !important;}
.shape_change:hover .overlay span { transform: scaleY(1); }
.shape_change:hover a { color: #fff !important;}


/* nội dung hiển thị trên overlay */
.content_shape {
  position: relative;
  z-index: 1;
  color: #393E46;
  text-decoration: none;
}



  /* Accordion HOME ---------------------------------------------------------*/
.faq-accordion {
  margin: 50px auto;
}

/* Bo góc + bóng nhẹ */
.accordion-item {
  border: none;

  border-radius: 10px; /* Bo tròn góc trên */
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  margin-bottom: 15px;
  overflow: hidden;
}

/* Nút câu hỏi */
.accordion-button {
  font-weight: 500;
  font-size: 16px;
  color: #222;
  background-color: #fff;
  padding: 18px 24px;
  border: none;
  box-shadow: none;
  transition: all 0.3s ease;
  border-radius: 10px 10px 0px 0px !important;
}

/* Khi mở */
.accordion-button:not(.collapsed) {
  background-color: #1abc9c; 
  color: #fff !important;               /* chữ trắng */
}

.accordion-button::after {
  filter: invert(0) brightness(0); /* icon đen */
  transition: transform 0.3s ease;
}

/* khi mở */
.accordion-button:not(.collapsed)::after {
  transform: rotate(90deg);
  filter: invert(1) brightness(2);  /* icon trắng */
}

/* Nội dung bên trong */
.accordion-body {
  padding: 0 24px 18px;
  font-size: 15px;
  color: #555;
  line-height: 1.6;
}

/* Khi đang mở, đổi màu text */
.accordion-button:not(.collapsed) + .accordion-collapse .accordion-body {
  background: #1abc9c;
  color: #fff;
}

.accordion-button:focus,
.accordion-button:active {
  outline: none !important;
  box-shadow: none !important;
}

.link_xem_them {
  text-decoration: none;  text-align: right;
  display: block; /* đảm bảo có thể căn phải */
  margin: 0;}


/* Banner */
.contact-banner {
  width: 100%;
  background:linear-gradient(90deg, rgba(26,182,157,0.9), rgba(49,185,120,0.9));
  border-radius: 12px;
  color: white;
  text-align: center;
  position: relative;
  z-index: 10;
}

.contact-content {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
  padding:40px;
}





/* Dashboard theo yêu cầu  */
.blur-circle_red {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 77, 120, 0.15) 0%, rgba(255, 77, 120, 0) 70%);
  filter: blur(80px);
  z-index: -1;
}

.blur-circle_green {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(26, 182, 157, 0.15) 0%, rgba(26, 182, 157, 0) 70%);
  filter: blur(80px);
  z-index: -1;
}

.blur-circle_blue {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(57, 192, 250, 0.1) 0%, rgba(57, 192, 250, 0) 70%);
  filter: blur(80px);
  z-index: -1;
}

.yc_box {
  box-shadow: 10px 5px 25px rgba(0, 0, 0, 0.08);
  background: #fff;
  border-radius: 7px;
}
.yc_icon { width:80px; height:80px; border-radius:50%; position: relative;}
.bg_green { background:#E8F8F5; }
.bg_red { background: #FDEDEF;}
.bg_blue { background:#E7F7FE; }
.margin_top_mb { margin-top:100px;  }

.button_db_yc {
  position: relative;
  display: inline-block;
  padding: 10px 25px;
  background: #fff;
  color: #EE4A62;
  border:1px solid #EE4A62;
  border-radius: 7px;
  font-size: 16px;
  cursor: pointer;
  transition: transform .15s ease;
  text-decoration: none;
  margin-left: 15px;
  z-index: 2;
  overflow: visible;
}
.button_db_yc::before,
.button_db_yc::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 100%;
  height: 100%;
  border-radius: 7px;
  border: 1px solid rgba(238, 74, 98, 0.8); /* halo viền */
  transform: translate(-50%, -50%) scale(1);
  opacity: 0;
  pointer-events: none;
}
.button_db_yc::before { animation: borderHalo 2s infinite;}
.button_db_yc::after { animation: borderHalo 2s infinite; animation-delay: 1.5s;}
@keyframes borderHalo {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.7;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.8);
    opacity: 0;
  }
}



/* SẢN PHẨM ------------------------------------------------------ */

.sp {
  width: 100%;
  overflow: hidden;
  text-decoration: none;
  display: inline-block;
  position: relative;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  background: #fff;
  z-index: 9;
  padding-bottom: 15px;
}

/* Ảnh phóng to nhẹ khi hover */
.sp img {
  transition: transform 0.5s ease;
  margin-bottom: 20px;
  border-radius: 20px !important;
  padding: 10px;

}
.sp:hover img {
  transform: scale(1.05);
}
.sp p {
  padding: 0px 20px;
  margin: 0px;
}

/* Info ẩn ban đầu */
.info_sp {
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 110%;
  background: linear-gradient(90deg, rgba(26,182,157,1), rgba(49,185,120,0.8));
  padding: 30px !important;
  opacity: 0;
  transform: translateY(40px); /* dịch lên 10px để khi hiện sẽ trượt xuống */
  transition: all 0.5s ease;
  z-index: 10;
  pointer-events: none; /* tránh cản hover khi ẩn */
  color: #fff !important;
  font-size: 16px;

}

/* Khi hover vào .sp thì info_sp hiện ra */
.sp:hover .info_sp {
  opacity: 1;
  transform: translateY(20px); /* trượt xuống nhẹ */
  pointer-events: auto;
}


/* ĐÁNH GIÁ ------------------------------------------------------ */

.tms-section {
  margin: 60px auto;
  padding: 0 20px;
  position: relative;

}

.tms-subtitle {
  text-transform: uppercase;
}


.tms-btn {
  background-color: #10b981;
  border: none;
  padding: 10px 24px;
  color: #fff;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: 0.3s;
}

.tms-btn:hover {
  background-color: #0d946a;
}

/* ===== Slider Container ===== */
.tms-slider-container {
    user-select: none;
  overflow: hidden;
  position: relative;
  cursor: grab;
}

.tms-slider-track {
  display: flex;
  transition: transform 0.5s ease;
}

.tms-card {
  min-width: 305px;
  max-width: 45%;
  background: #fff;
  border-radius: 15px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
  padding: 60px 20px 40px 20px;
  margin-right: 20px;
  position: relative;
  overflow: hidden;

}

.tms-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 10px;
}

.tms-quote {
  font-size: 16px;
  margin-bottom: 10px;
color: #676C74 !important;
font-weight: 300;
}

.tms-stars {
  color: #fbbf24;
  font-size: 20px;
  margin-bottom: 10px;
}

.tms-name {
  font-weight: 700;
  font-size: 16px;
}

.tms-role {
  font-size: 14px;
  color: #888;
}

.text-justify {
  text-align: justify !important;
}

 .ket_noi { padding:0px; }
 .ket_noi img { width:25px; }
 .link { text-decoration:none; color:#676C74; }

 .icon_tim {
  background: #fff; 
  margin-left: -15px; 
  margin-bottom: -25px; 
  width: 32px !important; 
  height: 30px !important; 
  border-radius: 20px; 
  text-align: center; 
  line-height: 35px; 
  box-shadow: 0 1px 10px 5px rgba(0, 0, 0, 0.07);
  color: #EE4A62;
 }


 /* SẢN PHẨM --------------------------------------------------------*/
 .tabs {
  margin: 40px auto;
  color: #333;
}

.tab-header {
  display: flex;
  border-bottom: 1px solid #e9e9e9;
  list-style: none;
  padding: 0;
  margin: 0 0 20px 0;
}

.tab-header li {
  padding: 12px 24px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.5s ease;
  margin-bottom: -2px;
  font-size: 18px;
  font-weight: 500;
  color: #7E838B;
}



.tab-header li.active {
  color: #00bfa6;
  border-bottom: 2px solid #00bfa6;
  margin-bottom: -2px;
  background: #f9f9f9;
}

.tab-content {
  display: none;
  animation: fadeIn 0.5s ease;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.margin_top_am_250 {margin-top: -225px;}
.course-card {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0px 10px 50px 0px rgba(26, 46, 85, 0.07);
  overflow: hidden;
  position: relative;
  z-index: 100;
  padding: 15px;
}

.video-thumbnail {
  position: relative;
  cursor: pointer;
  border-radius: 10px;
}

.video-thumbnail img {
  width: 100%;
  display: block;
  border-radius: 10px;

}

.play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #FF0033;
  color: white;
  padding-left: 5px;
  font-size: 22px;
  width: 60px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
  transition: 0.5s ease;
}

.play-btn:hover {
  transform: translate(-50%, -50%) scale(1.1);
}


.course-info p {
  width: 100%;
  border-bottom: 1px solid #f1f1f1;
  padding-bottom: 15px;

}


/* PAGE KHÓA HỌC -------------------------------------------- */

.header_kh {
  position: relative;
  min-height: 450px; /* chiều cao div mẹ */
  overflow: hidden;
  width: 100%;
}

.bg_header_kh {
  position: absolute;
  inset: 0;
  background-size: cover;
  z-index: 10;
}

.hero__shape {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%; /* SVG tự co theo chiều cao cha */
  display: block;
  pointer-events: none;
  z-index: 0;
}


.skill-card {
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  border:1px dashed #e9e9e9;
  
}


.icon-wrapper {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.bg-green { background: #E6F8F2; color: #1BB69C; }
.bg-red { background: #FFE6E6; color: #FF5C5C; }
.bg-purple { background: #F0E6FF; color: #8B5CF6; }

.skill-card h5 {
  margin-bottom: 6px;
}

.skill-card p {
  font-size: 0.95rem;
  margin-bottom: 0;
  line-height: 1.5;
}

.icon-wrapper1 {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  flex-shrink: 0;
  padding-left: 20px;
}

#status {
  margin-top: 15px;
  font-size: 14px;
  color: #9F5876;
  font-weight: 500;
  font-style: italic;
}

#qrcode {
  margin-top: 20px;
  text-align: center;
}

.thong_tin {
  font-style: normal;
}

.qr_demo {
  display: inline-block;       /* Ôm sát nội dung QR */
  border: 5px solid #ccc;
  border-radius: 15px;
  padding: 10px 50px 0px 10px;           /* Giảm padding để vừa khít hơn */
  opacity: 0.3;
  color: #ccc;
}

/* Div hiển thị lịch học */
#scheduleDiv {
  margin-top: -10px;
  border-radius: 10px;
  line-height: 1.6;
  font-size: 16px;
  margin-bottom: 20px;
}


/* Radio và label cùng hàng */
.form-group div {
  display: flex;
  align-items: center; /* canh giữa theo chiều cao */
  margin-bottom: 8px;
}

.form-group div label {
  margin: 0; /* loại bỏ margin mặc định */
  font-size: 16px;
}
.gia {

font-weight: 300;
}

.timeline {
  position: relative;
  margin-left: 5px;
  padding-left: 16px;
  border-left: 1px solid #ccc;
}

.timeline-item {
  position: relative;
  margin-bottom: 1rem;
  padding-left: 0px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -20px;
  top: 7px;
  width: 7px;
  height: 7px;
  background-color: #ccc;
  border-radius: 50%;
  border: 1px solid white;
  box-shadow: 0 0 0 1px #ccc;
}

.timeline-item.today::before {
  background-color: #dc3545; /* chấm đỏ cho ngày hôm nay */
  box-shadow: 0 0 0 1px #dc3545;
}

.timeline-item.today p {
  font-weight: 400;
  color: #dc3545;
}


.button_giam_gia {
  padding: 10px 15px;
  background: #fff;
  color: #EE4A62;
  border:1px solid #EE4A62;
  border-radius: 7px;
  text-decoration: none;
  margin-left: 15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
  line-height: 1;
  transform: translateY(-10%);
}

.card1 {
  background: #fff;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
  border-radius: 12px;

}