* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Raleway', sans-serif;
}

body {
  background: #FFF;
}

/* ══════════════════════════════
   NAVBAR
══════════════════════════════ */
.navbar {
  background: #014DEE;
  padding: 5px 30px;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
}

.nav-container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Hamburger ẩn trên desktop */
.hamburger {
  display: none;
}

.nav-menu .mobile-cta {
  display: none;
}

.logo img {
  max-height: 70px;
}

.nav-menu {
  list-style: none;
  display: flex;
  gap: 50px;
}

.nav-menu li a {
  text-decoration: none;
  color: #FFF;
  font-family: Raleway;
  font-size: 21.834px;
  font-style: normal;
  font-weight: 700;
  line-height: 138.464%;
  display: inline-block;
  transition: all 0.3s ease;
}

.nav-menu li a:hover {
  opacity: 0.7;
  transform: scale(1.05);
}

.nav-btn a {
  background: white;
  color: #014DEE;
  font-family: Raleway;
  font-size: 21.834px;
  font-style: normal;
  font-weight: 700;
  line-height: 138.464%;
  padding: 8px 20px;
  border-radius: 20px;
  text-decoration: none;
  display: inline-block;
  transition: all 0.3s ease;
}

.nav-btn a:hover {
  background: #e6e6e6;
  transform: scale(1.05);
}

#tongquan,
#workshop,
#diengia,
#khachmoi,
#lienhe,
#dangky {
  scroll-margin-top: 150px;
}

/* ══════════════════════════════
   HERO
══════════════════════════════ */
.hero {
  padding: 140px 0px 0px;
  position: relative;
  margin: 0 auto;
}

.hero-container {
  max-width: 1440px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
}

.hero-text {
  width: 780px;
}

.event {
  color: #014DEE;
  font-family: Raleway;
  font-size: 26.104px;
  font-weight: 600;
  margin-bottom: 20px;
}

.title {
  color: #014DEE;
  font-family: Raleway;
  font-size: 135.369px;
  font-weight: 700;
  line-height: 99%;
}

.subtitle {
  color: #014DEE;
  font-family: Raleway;
  font-size: 30.567px;
  font-weight: 600;
  margin: 20px 0;
}

.desc {
  color: #014DEE;
  font-family: Montserrat;
  font-size: 17.467px;
  font-style: normal;
  font-weight: 500;
  line-height: 37.117px;
  margin-top: 30px;
}

.desc b {
  color: #014DEE;
  font-family: Montserrat;
  font-size: 17.467px;
  font-style: normal;
  font-weight: 600;
  line-height: 37.117px;
}

.time {
  color: #fff;
  font-family: Montserrat;
  font-size: 21.834px;
  font-weight: 600;
  margin-top: 45px;
  background-color: #014DEE;
  padding: 20px;
  width: fit-content;
}

.hero-image {
  position: relative;
}

.hero-image img {
  width: 770px;
  max-width: 100%;
  margin-top: 20px;
}

/* ══════════════════════════════
   LINE / DIVIDER
══════════════════════════════ */
.line {
  width: 1440px;
  margin: 0 auto;
  height: 2px;
  background-color: #014DEE;
}

/* ══════════════════════════════
   LOGO SECTION
══════════════════════════════ */
.logo-section {
  padding: 60px 0;
  text-align: center;
  width: 1440px;
  margin: 0 auto;
}

.logo-section h2 {
  color: #014DEE;
  text-align: center;
  font-family: Raleway;
  font-size: 48.034px;
  font-style: normal;
  font-weight: 700;
  line-height: normal;
  margin-bottom: 60px;
}

/* ══════════════════════════════
   SLIDER
══════════════════════════════ */
.slider {
  overflow: hidden;
  width: 100%;
  margin: 20px 0;
  position: relative;
}

.track {
  display: flex;
  width: max-content;
}

.logo-row {
  height: 70px;
  flex-shrink: 0;
  margin-right: 80px;
}

/* ══════════════════════════════
   WORKSHOP IMAGE
══════════════════════════════ */
.workshop-image {
  width: 1440px;
  margin: 0 auto;
  display: flex;
  margin: 30px auto;
}


/* ══════════════════════════════
  MENTOR
══════════════════════════════ */

.mentor-section {
  width: 1440px;
  margin: auto;
  padding: 40px 0;
}

.title-box {
  text-align: center;
}

.tag {
  background: #014DEE;
  color: #fff;
  display: inline-block;
  padding: 20px 20px;
  font-family: Raleway;
  font-size: 58.951px;
  font-weight: 700;
  margin-bottom: 20px;
}

.title-box h1 {
  color: #014DEE;
  font-family: Raleway;
  font-size: 58.951px;
  font-weight: 700;
}

.mentor-images {
  display: flex;
  margin-top: 40px;
  justify-content: space-between;
}

.mentor-images img {
  width: 1440px;
}

/* ══════════════════════════════
  KHACH MOI
══════════════════════════════ */
.khachmoi {
  background: #014DEE;
  padding: 50px 0;
  width: 1440px;
  margin: 40px auto;
}

/* CONTAINER */
.container-khachmoi {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 20px 40px 20px;
}

/* TITLE */
.title-khachmoi-wrapper {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 40px 30px 40px;
}

.title-khachmoi {
  color: #FFF;
  font-family: Raleway;
  font-size: 106px;
  font-weight: 700;
  padding: 10px;
}

.title-khachmoi-highlight {
  display: inline-block;
  background: #FFF;
  color: #014DEE;
  font-family: Raleway;
  font-size: 106px;
  font-weight: 700;
  padding: 20px 0px 20px 20px;
}

.arrow-dacbiet {
  height: 72px;
  vertical-align: middle;
  display: inline-block;
}

/* GRID */
.right-khachmoi {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 30px;
  justify-items: center;
}

/* CARD */
.card-khachmoi {
  text-align: left;
  width: 100%;
  max-width: 390px;
}

/* IMAGE */
.image-khachmoi {
  width: 100%;
  max-width: 390px;
  aspect-ratio: 1/1;
  object-fit: cover;
}

/* LINE dưới ảnh */
.line-image {
  width: 100%;
  height: 1px;
  background-color: #fff;
  margin: 15px 0 5px 0;
}

/* NAME */
.name-khachmoi {
  color: #FFF;
  font-family: Montserrat;
  font-size: 22px;
  font-weight: 700;
  margin-top: 10px;
}

/* HỌC BỔNG */
.hocbong {
  color: #FFF;
  font-family: Montserrat;
  font-size: 18px;
  font-weight: 600;
}

/* LINE NGANG GRID */
.line-khachmoi {
  grid-column: 1 / -1;
  justify-self: stretch;
  height: 1px;
  background: #fff;
  margin: 20px 30px;
}

/* ══════════════════════════════
  DANG KY
══════════════════════════════ */
.dangky {
  width: 1440px;
  margin: auto;
  display: flex;
  gap: 150px;
  align-items: stretch;
  padding: 40px 0;
}

/* LEFT */
.left {
  flex: 0.6;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.left h1 {
  color: #014DEE;
  font-size: 61.134px;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 40px;
  font-family: Raleway;
}

.gift {
  border-top: 2px solid #014DEE;
  padding: 30px 0;
  color: #014DEE;
  font-size: 21.834px;
  font-weight: 600;
  font-family: Raleway;
}

/* RIGHT */
.right {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.right h2 {
  color: #014DEE;
  font-family: Raleway;
  font-size: 61.134px;
  font-style: normal;
  font-weight: 700;
  line-height: normal;
  text-align: center;
  margin-bottom: 40px;
}

/* FORM */
form {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.form-group {
  border-top: 2px solid #014DEE;
  display: flex;
  align-items: center;

  justify-content: space-between;
  padding: 20px 0;
}

.form-group label {
  color: #014DEE;
  font-family: Raleway;
  font-size: 21.834px;
  font-style: normal;
  font-weight: 600;
  line-height: normal;
}

/* ===== INPUT ===== */
.form-group .input-line {
  flex: 1;
  position: relative;
  margin-left: 30px;
}

.form-group .input-line input {
  width: 100%;
  border: none;
  outline: none;
  background: transparent;

  color: #014DEE;
  font-size: 21.834px;
  font-weight: 600;
  font-family: Raleway;
}

.form-group .input-line::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: #014DEE;
  transform: scaleY(0.5);
  transform-origin: bottom;
}

/* ===== TEXTAREA ===== */
.form-group textarea {
  flex: 1;
  width: 100%;
  border: none;
  outline: none;
  background-color: transparent;

  color: #014DEE;
  font-size: 21.834px;
  font-weight: 600;
  font-family: Raleway;

  line-height: 30px;
  height: 60px;

  box-sizing: border-box;
  padding: 0;

  overflow-y: auto;
  resize: none;

  background-image: linear-gradient(#014DEE, #014DEE),
                    linear-gradient(#014DEE, #014DEE);
  background-size: 100% 0.5px, 100% 0.5px;
  background-position: 0 29px, 0 59px;
  background-repeat: no-repeat;
}

/* giữ layout column */
.form-group.column {
  flex-direction: column;
  align-items: flex-start;
  margin-left: 0;
}

/* BUTTON */
button {
  margin-top: 20px;
  background: #014DEE;
  color: #fff;
  padding: 18px;
  font-size: 20px;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
}

button:hover{
  background: #5b9ac4;
  transform: scale(1.05);
}

/* ══════════════════════════════
  KET QUA
══════════════════════════════ */

.ketqua{
  width:1440px;
  display:flex;
  background-color: #014DEE;
  margin: 30px auto;
  padding: 50px 0;
  flex-direction: column;
}

.container-ketqua{
  width:90%;
  margin:auto;
  display:flex;
  gap:80px;
}

.sub-ketqua{
  width:90%;
  color: #FFF;
  font-family: Raleway;
  font-size: 26.2px;
  font-style: normal;
  font-weight: 600;
  line-height: normal;
  margin-bottom:20px;
  margin:20px auto;
  display: flex;
  justify-content: flex-start;
  align-items: start;
}

/* LEFT 0.4 */
.left-ketqua{
  width:40%;
  color:#fff;
  display:flex;
  flex-direction:column;
  justify-content:start;
}

/* RIGHT 0.6 */
.right-ketqua{
  width:60%;
  color:#fff;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:flex-end;
}

/* TEXT LEFT */

.title-ketqua{
  font-size:96.068px;
  font-weight:700;
  line-height:1.1;
  margin-top: 100px;
}

/* LINE */
.line-ketqua{
  width:100%;
  height:1px;
  background:#fff;
}

/* RIGHT TEXT */
.item-ketqua{
  font-size:24.017px;
  font-weight:500;
  text-align:right;
  margin:30px 0;
  max-width:100%;
}

.divider-ketqua{
  width:100%;
  height:1px;
  background:#fff;
}

/* BUTTON */
.btn-ketqua{
  margin-top:40px;
  background:#e6e6e6;
  color:#014DEE;
  font-size:61.134px;
  font-weight:700;
  border:none;
  padding:15px 60px;
  cursor:pointer;
  width: 100%;
  display: flex;
  justify-content: end;
  transition: all 0.3s ease;
}

.btn-ketqua:hover{
  background: #5b9ac4;
  transform: scale(1.05);
}

/* ══════════════════════════════
  LIEN HE
══════════════════════════════ */

.line-lienhe{
  height: 40px;
  background-color: #014DEE;
  width: 1440px;
  margin: 0 auto;
}

.contact-bar{
  width:100%;
  background:fff;
  padding:20px 0;
  width:1440px;
  margin:60px auto;
}

.contact-container{
  width:90%;
  margin:auto;
  display:flex;
  align-items:start;
  justify-content:space-between;
}

/* LOGO */
.logo-1 img{
  width:304px;
  height: 96.73px;
}

/* RIGHT INFO */
.info{
  display:flex;
  flex-direction:column;
  gap:12px;
}

/* ITEM */
.info-item{
  display:flex;
  align-items:center;
  gap:30px;
  color: #014DEE;
  font-family: Montserrat;
  font-size: 20px;
  font-style: normal;
  font-weight: 400;
  line-height: normal;
  margin-top: 20px;
}

.info-item span{
  color: #014DEE;
  font-family: Montserrat;
  font-size: 20px;
  font-style: normal;
  font-weight: 400;
  line-height: normal;
}

/* ICON */
.info-item img{
  max-width:30px;
  max-height:30px;
}

/* LINK */
.info-item a{
  color: #014DEE;
  font-family: Montserrat;
  font-size: 20px;
  font-style: normal;
  font-weight: 400;
  line-height: normal;
}

.info-item a:hover{
  text-decoration:underline;
}


/* ══════════════════════════════════════════════════════
   RESPONSIVE — 1439px
══════════════════════════════════════════════════════ */
@media (max-width: 1439px) {

  /* NAVBAR */
  .nav-container { width: 100%; padding: 0 20px; }
  .nav-menu { gap: 24px; }
  .nav-menu li a { font-size: 16px; }
  .nav-btn a { font-size: 16px; padding: 7px 16px; }

  /* HERO */
  .hero { padding: 120px 40px 0; }
  .hero-container { gap: 20px; }
  .hero-text { width: 520px; }
  .title { font-size: 96px; }
  .subtitle { font-size: 22px; }
  .event { font-size: 20px; }
  .desc, .desc b { font-size: 15px; line-height: 30px; }
  .time { font-size: 18px; padding: 10px; margin-bottom: 10px;}
  .hero-image img { width: 520px; margin-top: 81px; }

  /* LINE & FULL-WIDTH BLOCKS */
  .line,
  .logo-section,
  .workshop-image,
  .mentor-section,
  .khachmoi,
  .container-khachmoi,
  .dangky,
  .ketqua,
  .line-lienhe,
  .contact-bar { width: 100%; }

  /* LOGO SECTION */
  .logo-section { padding: 40px 20px; }
  .logo-section h2 { font-size: 32px; margin-bottom: 40px; }
  .logo-row { height: 55px; margin-right: 50px; }

  /* MENTOR */
  .mentor-section { padding: 40px 20px; }
  .tag { font-size: 38px; padding: 14px 18px; }
  .title-box h1 { font-size: 38px; }
  .mentor-images img { width: 100%; }

  /* KHACH MOI */
  .khachmoi {
    width: 100%;
  }

  .container-khachmoi {
    max-width: 100%;
    padding: 0 30px 40px 30px;
  }

  .title-khachmoi-wrapper {
    max-width: 100%;
    padding: 0 30px 30px 30px;
  }

  .title-khachmoi,
  .title-khachmoi-highlight {
    font-size: 80px;
  }

  .arrow-dacbiet {
    height: 56px;
  }

  .right-khachmoi {
    gap: 30px 24px;
  }

  .card-khachmoi {
    max-width: 340px;
  }

  .image-khachmoi {
    max-width: 340px;
  }

  .line-khachmoi{
    margin: 20px 10px;
  }
  /* DANG KY */
  .dangky { width: 100%; gap: 60px; padding: 40px 30px; }
  .left h1 { font-size: 44px; }
  .gift { font-size: 17px; }
  .right h2 { font-size: 44px; }
  .form-group label { font-size: 17px; }
  .form-group .input-line input,
  .form-group textarea { font-size: 17px; }

  /* KET QUA */
  .ketqua { width: 100%; margin: 30px auto; }
  .container-ketqua { gap: 40px; }
  .title-ketqua { font-size: 68px; margin-top: 60px; }
  .item-ketqua { font-size: 18px; }
  .btn-ketqua { font-size: 40px; padding: 15px 30px; }
  .sub-ketqua { font-size: 22px; }

  /* LIEN HE */
  .line-lienhe { width: 100%; }
  .contact-bar { width: 100%; margin: 40px auto; }
  .logo-1 img { width: 220px; height: auto; }
  .info-item { font-size: 16px; gap: 20px; }
  .info-item a { font-size: 16px; }
  .info-item span { font-size: 16px; }
}


/* ══════════════════════════════════════════════════════
   RESPONSIVE — 1130px
══════════════════════════════════════════════════════ */
@media (max-width: 1130px) {

  /* NAVBAR */
  .nav-menu { gap: 16px; }
  .nav-menu li a { font-size: 14px; }
  .nav-btn a { font-size: 14px; padding: 6px 14px; }
  .logo img { max-height: 54px; }

  /* HERO — stack vertically */
  .hero { padding: 100px 30px 0; }
  .hero-container { flex-direction: column; align-items: center; }
  .hero-text { width: 100%; max-width: 680px; }
  .title { font-size: 80px; }
  .subtitle { font-size: 20px; }
  .event { font-size: 18px; }
  .desc, .desc b { font-size: 14px; line-height: 28px; }
  .time { font-size: 17px; }
  .hero-image { width: 100%; max-width: 680px; text-align: center; }
  .hero-image img { width: 100%; margin-top: 30px; }

  /* LOGO SECTION */
  .logo-section h2 { font-size: 26px; }
  .logo-row { height: 48px; margin-right: 40px; }

  /* MENTOR */
  .tag { font-size: 28px; padding: 12px 14px; }
  .title-box h1 { font-size: 26px; }
  .mentor-images { flex-direction: column; align-items: center; gap: 20px; }
  .mentor-images img { width: 90%; }

  /* KHACH MOI */
  .title-khachmoi,.title-khachmoi-highlight { font-size: 64px; }

  .arrow-dacbiet {
    height: 46px;
  }

  .right-khachmoi {
    grid-template-columns: repeat(3, 1fr);
    gap: 30px 20px;
  }

  .card-khachmoi {
    max-width: 100%;
  }

  .image-khachmoi {
    max-width: 100%;
  }

  .name-khachmoi {
    font-size: 18px;
  }

  .hocbong {
    font-size: 15px;
  }

  /* DANG KY */
  .dangky { flex-direction: column; gap: 40px; padding: 40px 30px; }
  .left, .right { flex: none; width: 100%; }
  .left h1 { font-size: 40px; margin-bottom: 20px; }
  .right h2 { font-size: 40px; }
  .gift { font-size: 16px; }
  .form-group label { font-size: 16px; }
  .form-group .input-line input,
  .form-group textarea { font-size: 16px; }

  /* KET QUA */
  .container-ketqua { flex-direction: column; gap: 20px; }
  .left-ketqua { width: 100%; }
  .right-ketqua { width: 100%; }
  .title-ketqua { font-size: 56px; margin-top: 20px; }
  .item-ketqua { font-size: 16px; text-align: left; margin: 20px 0; }
  .btn-ketqua { font-size: 32px; padding: 15px 20px; justify-content: center; }
  .sub-ketqua { font-size: 20px; }

  /* LIEN HE */
  .contact-container { flex-direction: column; gap: 30px; }
  .logo-1 img { max-width: 180px; }
  .info-item { font-size: 15px; gap: 16px; }
  .info-item a { font-size: 15px; }
  .info-item span { font-size: 15px; }
}


/* ══════════════════════════════════════════════════════
   RESPONSIVE — 900px (Tablet)
══════════════════════════════════════════════════════ */
@media (max-width: 900px) {


  /* NAVBAR — hamburger toggle */
  .navbar { padding: 5px 16px; }
  .nav-btn { display: none; }
  .logo img { max-height: 46px; }

  /* Hiện hamburger */
  .hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    z-index: 3000;
    background: none;
    border: none;
    margin-top: 0;
  }
  .hamburger:hover { background: none; transform: none; }
  .hamburger span {
    display: block;
    width: 26px;
    height: 2.5px;
    background: #fff;
    border-radius: 2px;
    transition: all 0.3s ease;
    transform-origin: center;
  }
  .hamburger.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
  .hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
  .hamburger.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

  /* Slide-in panel */
  .nav-menu {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: fixed;
    top: 0;
    right: -100%;
    width: 75%;
    max-width: 320px;
    height: 100vh;
    background: #014DEE;
    padding: 90px 30px 40px;
    z-index: 2000;
    transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
  }
  .nav-menu.open { right: 0; }

  .nav-menu li { border-bottom: 1px solid rgba(255,255,255,0.2); }
  .nav-menu li a { font-size: 18px; display: block; padding: 18px 0; }
  .nav-menu li a:hover{  opacity: 0.7; transform: scale(1.05);}

  /* Hiện mobile-cta (nút đăng ký) trong menu */
  .nav-menu .mobile-cta {
    display: block;
    margin-top: 30px;
    border-bottom: none;
  }
  .nav-menu .mobile-cta a {
    background: #fff;
    color: #014DEE;
    border-radius: 20px;
    padding: 12px 20px;
    font-size: 16px;
    display: inline-block;
    font-weight: 700;
  }
  .nav-menu .mobile-cta a:hover {background: #e6e6e6; transform: scale(1.05); }

  /* HERO */
  .hero { padding: 80px 20px 0; }
  .hero-text { max-width: 100%; }
  .title { font-size: 64px; }
  .subtitle { font-size: 18px; }
  .event { font-size: 16px; }
  .desc, .desc b { font-size: 13.5px; line-height: 26px; }
  .time { font-size: 15px; }
  .hero-image img { margin-top: 20px; }

  /* LOGO SECTION */
  .logo-section { padding: 30px 16px; }
  .logo-section h2 { font-size: 20px; margin-bottom: 24px; }
  .logo-row { height: 40px; margin-right: 30px; }

  /* WORKSHOP */
  .workshop-image { margin: 20px auto; }

  /* MENTOR */
  .mentor-section { padding: 30px 16px; }
  .tag { font-size: 22px; padding: 10px 12px; }
  .title-box h1 { font-size: 20px; }
  .mentor-images img { width: 100%; }

  /* KHACH MOI */
  .khachmoi { margin: 20px auto; padding: 30px 16px; }
  .container-khachmoi { padding: 16px; }
  .title-khachmoi-wrapper { padding: 0 20px 24px 50px; }
  .title-khachmoi, .title-khachmoi-highlight { font-size: 48px; }
  .title-khachmoi-highlight { padding: 12px 0 12px 14px; }
  .right-khachmoi { grid-template-columns: repeat(2, 1fr); gap: 30px 20px;}
  .line-khachmoi { display: none; }
  .image-khachmoi { width: 100%; height: auto; }
  .line-image { width: 100%; }
  .arrow-dacbiet { height: 30px; }
  .name-khachmoi { font-size: 15px; }
  .hocbong { font-size: 13px; }

  /* DANG KY */
  .dangky { padding: 30px 16px; gap: 30px; }
  .left h1 { font-size: 34px; }
  .gift { font-size: 14px; padding: 20px 0; }
  .right h2 { font-size: 32px; margin-bottom: 24px; }
  .form-group { padding: 14px 0; }
  .form-group label { font-size: 14px; }
  .form-group .input-line input,
  .form-group textarea { font-size: 14px; }
  button { font-size: 16px; padding: 14px; }

  /* KET QUA */
  .ketqua { padding: 30px 0; margin: 20px auto; }
  .container-ketqua { padding: 0 16px; }
  .sub-ketqua { font-size: 18px; padding: 0 16px; }
  .title-ketqua { font-size: 44px; }
  .item-ketqua { font-size: 14px; margin: 16px 0; }
  .btn-ketqua { font-size: 26px; padding: 14px 16px; }

  /* LIEN HE */
  .line-lienhe { height: 28px; }
  .contact-bar { margin: 30px auto; padding: 16px 0; }
  .contact-container { padding: 0 16px; }
  .logo-1 img { max-width: 160px; }
  .info-item { font-size: 14px; gap: 14px; margin-top: 14px; }
  .info-item img { max-width: 22px; max-height: 22px; }
  .info-item a { font-size: 14px; }
  .info-item span { font-size: 14px; }
}


/* ══════════════════════════════════════════════════════
   RESPONSIVE — 768px (Mobile)
══════════════════════════════════════════════════════ */
@media (max-width: 768px) {

  /* NAVBAR */
  .navbar { padding: 5px 12px; }
  .logo img { height: 38px; }
  .hamburger span { width: 22px; }

  #tongquan,
  #workshop,
  #diengia,
  #khachmoi,
  #lienhe,
  #dangky {
    scroll-margin-top: 100px;
  }


  /* HERO */
  .hero { padding: 70px 12px 0; }
  .title { font-size: 46px; }
  .subtitle { font-size: 15px; margin: 14px 0; }
  .event { font-size: 13px; }
  .desc, .desc b { font-size: 12.5px; line-height: 24px; }
  .time { font-size: 13px; margin-top: 14px; }
  .hero-image img { padding-bottom: 2px; }

  /* LOGO SECTION */
  .logo-section { padding: 24px 12px; }
  .logo-section h2 { font-size: 16px; margin-bottom: 18px; }
  .logo-row { height: 32px; margin-right: 20px; }

  /* MENTOR */
  .mentor-section { padding: 24px 12px; }
  .tag { font-size: 16px; padding: 8px 10px; }
  .title-box h1 { font-size: 16px; }

  /* KHACH MOI */
  .khachmoi { padding: 20px 12px; margin: 14px auto; }
  .container-khachmoi { padding: 12px; flex-direction: column; }
  .title-khachmoi-wrapper { padding: 0 14px 20px 0px; }
  .title-khachmoi, .title-khachmoi-highlight { font-size: 30px; }
  .title-khachmoi-highlight { padding: 8px 0 8px 10px; }
  .right-khachmoi {
    grid-template-columns: 1fr 1fr;
    gap: 20px 14px;
  }
  .arrow-dacbiet { height: 20px; }
  .line-khachmoi { display: none; }
  .image-khachmoi { width: 100%; height: auto; }
  .line-image { width: 100%; }
  .name-khachmoi { font-size: 12px; margin-top: 6px; }
  .hocbong { font-size: 11px; }


  /* DANG KY */
  .dangky { padding: 24px 12px; gap: 24px; }
  .left h1 { font-size: 28px; line-height: 1.2; margin-bottom: 16px; }
  .gift { font-size: 12.5px; padding: 14px 0; }
  .right h2 { font-size: 26px; margin-bottom: 20px; }
  .form-group { padding: 12px 0; }
  .form-group label { font-size: 13px; white-space: nowrap; }
  .form-group .input-line { margin-left: 12px; }
  .form-group .input-line input,
  .form-group textarea { font-size: 13px; }
  button { font-size: 14px; padding: 12px; margin-top: 14px; }

  /* KET QUA */
  .ketqua { padding: 24px 0; margin: 14px auto; }
  .container-ketqua { flex-direction: column; gap: 16px; padding: 0 12px; }
  .sub-ketqua { font-size: 15px; padding: 0 12px; }
  .title-ketqua { font-size: 34px; margin-top: 10px; }
  .item-ketqua { font-size: 12.5px; margin: 12px 0; text-align: left; }
  .btn-ketqua { font-size: 20px; padding: 12px; justify-content: center; }

  /* LIEN HE */
  .line-lienhe { height: 20px; }
  .contact-bar { margin: 20px auto; }
  .contact-container { flex-direction: column; gap: 20px; padding: 0 12px; }
  .logo-1 img { max-width: 130px; }
  .info-item { font-size: 12px; gap: 10px; margin-top: 10px; flex-wrap: wrap; }
  .info-item img { max-width: 18px; max-height: 18px; }
  .info-item a { font-size: 12px; }
  .info-item span { font-size: 12px; }
}

@media (max-width: 450px) {
    .title-khachmoi, .title-khachmoi-highlight { font-size: 20px; }
}