*{
  margin:0;
  padding:0;
  box-sizing:border-box;
}

body{
  font-family:'Baloo 2', Arial, sans-serif;
  background:#f8fafc;
  color:#222;
}

/* MENU */

.navbar{
  width:100%;
  padding:12px 8%;
  display:flex;
  justify-content:center;
  align-items:center;
  gap:80px;
  background:white;
  position:sticky;
  top:0;
  z-index:1000;
  box-shadow:0 5px 20px rgba(0,0,0,0.05);
}

.logo img{
  height:55px;
}

.navbar ul{
  display:flex;
  list-style:none;
  gap:12px;
  background:white;
  padding:14px 24px;
  border-radius:50px;
  box-shadow:0 10px 30px rgba(0,0,0,0.08);
}

.navbar a{
  text-decoration:none;
  color:#0f172a;
  font-weight:600;
  padding:10px 16px;
  border-radius:30px;
  transition:0.3s;
}

.navbar a:hover{
  background:#0ea5e9;
  color:white;
}

/* HERO TRANG CHỦ */

.hero{
  min-height:85vh;
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:70px 8%;
  background:linear-gradient(135deg,#e0f2fe,#ffffff);
}

.hero-text{
  width:50%;
}

.small-title{
  color:#0284c7;
  font-weight:700;
  letter-spacing:2px;
  margin-bottom:20px;
}

.hero h1{
  font-size:64px;
  line-height:1.1;
  margin-bottom:25px;
  color:#0f172a;
}

.desc{
  font-size:18px;
  line-height:1.8;
  color:#475569;
  margin-bottom:35px;
}

.buttons{
  display:flex;
  gap:20px;
}

.btn-main,
.btn-outline{
  padding:15px 30px;
  border-radius:50px;
  text-decoration:none;
  font-weight:600;
  transition:0.3s;
}

.btn-main{
  background:#0ea5e9;
  color:white;
}

.btn-main:hover{
  background:#0284c7;
  transform:translateY(-3px);
}

.btn-outline{
  border:2px solid #0ea5e9;
  color:#0ea5e9;
}

.btn-outline:hover{
  background:#0ea5e9;
  color:white;
}

.hero-image{
  width:42%;
}

.hero-image img{
  width:100%;
  border-radius:35px;
  box-shadow:0 25px 60px rgba(0,0,0,0.2);
  transition:0.5s;
}

.hero-image img:hover{
  transform:scale(1.03);
}

/* SECTION CHUNG */

.info,
.courses,
.contact{
  padding:80px 8%;
}

h2{
  text-align:center;
  font-size:42px;
  margin-bottom:50px;
  color:#0f172a;
}

/* TRANG CON */

.page-header{
  padding:90px 8%;
  text-align:center;
  background:linear-gradient(135deg,#dbeafe,#f8fafc);
}

.page-header h1{
  font-size:52px;
  margin-bottom:20px;
  color:#0f172a;
}

.page-header p{
  font-size:20px;
  color:#475569;
}

.page-content{
  padding:80px 8%;
  background:#f8fafc;
}

/* CARD */

.cards,
.course-list{
  display:flex;
  justify-content:center;
  gap:30px;
  flex-wrap:wrap;
}

.card,
.course{
  width:320px;
  min-height:320px;
  background:white;
  padding:35px;
  border-radius:25px;
  box-shadow:0 10px 30px rgba(0,0,0,0.08);
  transition:0.4s;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
}

.card:hover,
.course:hover{
  transform:translateY(-12px);
  box-shadow:0 20px 40px rgba(0,0,0,0.12);
}

.card h3,
.course h3{
  margin-bottom:18px;
  color:#0284c7;
  font-size:24px;
}

.card p,
.course p{
  line-height:1.8;
  color:#475569;
}

.card button,
.course button{
  margin-top:20px;
  padding:14px;
  border:none;
  border-radius:12px;
  background:#0ea5e9;
  color:white;
  font-size:16px;
  font-weight:600;
  cursor:pointer;
  transition:0.3s;
}

.card button:hover,
.course button:hover{
  background:#0284c7;
  transform:translateY(-3px);
}

/* FORM LIÊN HỆ */

.contact{
  background:white;
}

form{
  max-width:550px;
  margin:auto;
  display:flex;
  flex-direction:column;
  gap:18px;
}

form input,
form textarea,
form select{
  padding:18px;
  border-radius:14px;
  border:1px solid #cbd5e1;
  font-size:16px;
}

form button{
  padding:18px;
  border:none;
  border-radius:14px;
  background:#0ea5e9;
  color:white;
  font-size:18px;
  font-weight:600;
  cursor:pointer;
  transition:0.3s;
}

form button:hover{
  background:#0284c7;
}

/* FOOTER */

.footer{
  background:#0f172a;
  color:white;
  padding:50px 8%;
  text-align:center;
  line-height:2;
}

.footer h3{
  margin-bottom:20px;
  color:#38bdf8;
}

/* NÚT ZALO FACEBOOK */

.social-buttons{
  position:fixed;
  right:20px;
  bottom:20px;
  display:flex;
  flex-direction:column;
  gap:12px;
  z-index:999;
}

.social-buttons a{
  padding:14px 20px;
  border-radius:50px;
  color:white;
  text-decoration:none;
  font-weight:600;
  box-shadow:0 10px 20px rgba(0,0,0,0.15);
  transition:0.3s;
}

.social-buttons a:hover{
  transform:translateY(-4px);
}

.zalo{
  background:#0068ff;
}

.facebook{
  background:#1877f2;
}

/* MOBILE */

@media(max-width:768px){

  .navbar{
    flex-direction:column;
    gap:18px;
    padding:15px 5%;
  }

  .navbar ul{
    flex-wrap:wrap;
    justify-content:center;
    border-radius:25px;
  }

  .hero{
    flex-direction:column;
    text-align:center;
    padding:60px 6%;
  }

  .hero-text,
  .hero-image{
    width:100%;
  }

  .hero h1{
    font-size:42px;
  }

  .hero-image{
    margin-top:40px;
  }

  .buttons{
    justify-content:center;
    flex-wrap:wrap;
  }

  .page-header{
    padding:70px 6%;
  }

  .page-header h1{
    font-size:38px;
  }

  .page-content{
    padding:60px 6%;
  }

  .card,
  .course{
    width:100%;
  }

  h2{
    font-size:34px;
  }

}
.footer{
  background:#41a4dd;
  color:white;
  padding:70px 8%;
}

.footer-container{
  display:grid;
  grid-template-columns:1.5fr 1.4fr 1fr 1.3fr;
  gap:45px;
  max-width:1200px;
  margin:auto;
}

.footer-col h3{
  font-size:18px;
  margin-bottom:25px;
  color:white;
}

.footer-col p{
  line-height:1.8;
  margin-bottom:12px;
  color:white;
}

.footer-logo{
  width:180px;
  margin-bottom:25px;
}

.map-box iframe{
  width:100%;
  height:210px;
  border:0;
  border-radius:10px;
  margin-top:15px;
}

.fb-box{
  background:white;
  color:#0f172a;
  padding:15px;
  margin-bottom:18px;
  border-radius:8px;
}

.fb-box p{
  color:#0f172a;
  margin-bottom:10px;
}

.fb-box a{
  display:inline-block;
  background:#1877f2;
  color:white;
  text-decoration:none;
  padding:8px 14px;
  border-radius:6px;
  font-size:14px;
}

@media(max-width:768px){
  .footer-container{
    grid-template-columns:1fr;
  }

  .footer{
    padding:50px 6%;
  }

  .footer-logo{
    width:150px;
  }
}
.footer-col p{
  white-space:nowrap;
}
.footer-about p{
  white-space:normal;
}
/* =========================
   ROADMAP STYLE - INT KOREAN
========================= */

.roadmap{
  padding:100px 8%;
  background:#f8fafc;
}

.roadmap h2{

  text-align:center;

  font-size:42px;

  margin-bottom:60px;

  color:#0f172a;
}

.roadmap-grid{

  display:grid;

  grid-template-columns:repeat(2,1fr);

  gap:30px;
}

.roadmap-card{

  background:white;

  padding:45px;

  border-radius:30px;

  box-shadow:
    0 10px 30px rgba(0,0,0,0.05);

  transition:0.35s;

  border:1px solid #eef2ff;

  position:relative;

  overflow:hidden;
}

.roadmap-card:hover{

  transform:
    translateY(-12px);

  box-shadow:
    0 20px 40px rgba(0,0,0,0.08);
}

.roadmap-card h3{

  font-size:30px;

  margin-bottom:22px;

  color:#0f172a;
}

.roadmap-card p{

  color:#64748b;

  line-height:1.9;

  font-size:17px;
}

.topik{

  display:inline-block;

  margin-top:22px;

  background:#dbeafe;

  color:#2563eb;

  padding:10px 20px;

  border-radius:999px;

  font-size:14px;

  font-weight:600;
}

.price{

  margin-top:28px;

  display:inline-block;

  background:
    linear-gradient(
      135deg,
      #60a5fa,
      #2563eb
    );

  color:white;

  padding:14px 24px;

  border-radius:999px;

  font-size:26px;

  font-weight:700;

  box-shadow:
    0 10px 25px rgba(37,99,235,0.25);

  transition:0.3s;
}

.roadmap-card:hover .price{

  transform:scale(1.05);
}

/* MOBILE */

@media(max-width:768px){

  .roadmap-grid{
    grid-template-columns:1fr;
  }

  .roadmap h2{
    font-size:34px;
  }

  .roadmap-card{
    padding:35px;
  }

  .roadmap-card h3{
    font-size:26px;
  }

  .price{
    font-size:22px;
  }

}

/* ===============================
   KHOA HOC PAGE
================================ */

.course-hero {
  position: relative;
  padding: 60px 7%;
  background: linear-gradient(#f8fcff, #eaf6ff);
  overflow: hidden;
}

.course-title {
  text-align: center;
  position: relative;
  z-index: 3;
}

.course-title h1 {
  font-size: 52px;
  color: #0d2d63;
  margin-bottom: 12px;
}

.course-title p {
  font-size: 22px;
  color: #56647c;
}

.course-roadmap {
  position: relative;
  height: 660px;
  margin-top: 40px;
}

.course-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.25;
  z-index: 1;
}

.course-road {
  position: absolute;
  left: 50%;
  bottom: 90px;
  transform: translateX(-50%);
  width: 1050px;
  max-width: 100%;
  z-index: 2;
}

.course-palace {
  position: absolute;
  left: 48%;
  bottom: 130px;
  width: 210px;
  z-index: 3;
}

.course-student {
  position: absolute;
  right: 1%;
  bottom: 0;
  width: 280px;
  z-index: 4;
}

.course-card {
  position: absolute;
  width: 260px;
  background: #fff;
  border-radius: 24px;
  padding: 24px;
  box-shadow: 0 20px 45px rgba(16, 72, 140, 0.14);
  z-index: 5;
  transition: 0.3s;
}

.course-card:hover {
  transform: translateY(-8px);
}

.course-tag {
  display: inline-block;
  background: linear-gradient(90deg, #0f66dd, #318fff);
  color: #fff;
  font-weight: 700;
  padding: 10px 22px;
  border-radius: 30px;
  margin-bottom: 18px;
}

.course-card p {
  color: #17305e;
  font-size: 17px;
  line-height: 1.55;
  margin-bottom: 18px;
}

.course-card span {
  display: block;
  background: #eaf3ff;
  color: #0f66dd;
  text-align: center;
  font-weight: 700;
  padding: 9px 12px;
  border-radius: 24px;
  margin-bottom: 16px;
}

.course-price {
  border-top: 2px dashed #d7e5f5;
  padding-top: 16px;
  text-align: center;
  color: #0f66dd;
  font-size: 28px;
  font-weight: 800;
}

.course-card-1 {
  left: 2%;
  top: 190px;
}

.course-card-2 {
  left: 29%;
  top: 85px;
}

.course-card-3 {
  left: 55%;
  top: 50px;
}

.course-card-4 {
  right: 2%;
  top: 0;
}

.course-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  background: #fff;
  padding: 24px;
  border-radius: 22px;
  box-shadow: 0 15px 35px rgba(16, 72, 140, 0.12);
  position: relative;
  z-index: 5;
}

.course-features h4 {
  color: #17305e;
  margin-bottom: 8px;
}

.course-features p {
  color: #5f6f86;
  line-height: 1.5;
  font-size: 14px;
}

@media (max-width: 1100px) {
  .course-title h1 {
    font-size: 36px;
  }

  .course-roadmap {
    height: auto;
    display: grid;
    gap: 24px;
  }

  .course-bg,
  .course-road,
  .course-palace,
  .course-student {
    display: none;
  }

  .course-card,
  .course-card-1,
  .course-card-2,
  .course-card-3,
  .course-card-4 {
    position: static;
    width: 100%;
  }

  .course-features {
    grid-template-columns: 1fr;
  }
}
.document-card{
  text-decoration:none;
  color:inherit;
}

.document-detail{
  padding:90px 8%;
  min-height:70vh;
  background:#f8fafc;
}

.document-detail h1{
  text-align:center;
  font-size:48px;
  margin-bottom:15px;
  color:#0f172a;
}

.document-detail p{
  text-align:center;
  color:#64748b;
  margin-bottom:50px;
}

.download-list{
  max-width:900px;
  margin:auto;
  display:grid;
  gap:20px;
}

.download-item{
  background:white;
  padding:25px 30px;
  border-radius:20px;
  text-decoration:none;
  color:#0f172a;
  display:flex;
  justify-content:space-between;
  align-items:center;
  box-shadow:0 10px 30px rgba(0,0,0,0.06);
  transition:0.3s;
}

.download-item:hover{
  transform:translateY(-5px);
}

.download-item span{
  font-size:18px;
  font-weight:600;
}

.download-item button{
  border:none;
  background:#0ea5e9;
  color:white;
  padding:12px 18px;
  border-radius:10px;
  cursor:pointer;
}
.document-card {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}
.map-button{
  margin-top:15px;
  text-align:center;
}

.map-button a{
  display:inline-block;
  background:white;
  color:#0ea5e9;
  text-decoration:none;
  padding:10px 18px;
  border-radius:10px;
  font-weight:600;
}
.home-card {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #ffffff, #f0f9ff);
  border: 1px solid #e0f2fe;
}

.home-card::before {
  content: "";
  position: absolute;
  width: 150px;
  height: 150px;
  background: #bae6fd;
  border-radius: 50%;
  top: -70px;
  right: -70px;
  opacity: 0.55;
}

.card-icon {
  width: 62px;
  height: 62px;
  background: #e0f2fe;
  color: #0284c7;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin-bottom: 24px;
  position: relative;
  z-index: 2;
}

.home-card h3,
.home-card p,
.home-card a {
  position: relative;
  z-index: 2;
}

.home-card h3 a {
  color: #0284c7;
  text-decoration: none;
}

.home-card h3 a:hover {
  color: #075985;
}

.card-btn {
  display: inline-block;
  margin-top: 24px;
  background: #0ea5e9;
  color: white !important;
  padding: 12px 20px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
}

.card-btn:hover {
  background: #0284c7;
  transform: translateY(-3px);
}
/* =========================
   RESPONSIVE MOBILE
========================= */

@media (max-width: 768px) {

  body {
    overflow-x: hidden;
  }

  .navbar {
    padding: 14px 5%;
    gap: 14px;
  }

  .logo img {
    height: 46px;
  }

  .navbar ul {
    width: 100%;
    overflow-x: auto;
    justify-content: flex-start;
    gap: 8px;
    padding: 10px;
    border-radius: 18px;
  }

  .navbar ul::-webkit-scrollbar {
    display: none;
  }

  .navbar a {
    white-space: nowrap;
    font-size: 14px;
    padding: 9px 13px;
  }

  .hero {
    flex-direction: column;
    text-align: center;
    padding: 50px 6%;
    min-height: auto;
  }

  .hero-text,
  .hero-image {
    width: 100%;
  }

  .hero h1 {
    font-size: 40px;
  }

  .desc {
    font-size: 16px;
  }

  .buttons {
    justify-content: center;
    flex-wrap: wrap;
  }

  .hero-image {
    margin-top: 35px;
  }

  .info,
  .courses,
  .contact,
  .page-content {
    padding: 55px 6%;
  }

  h2 {
    font-size: 32px;
    margin-bottom: 35px;
  }

  .cards,
  .course-list {
    gap: 22px;
  }

  .card,
  .course {
    width: 100%;
    min-height: auto;
    padding: 28px;
  }

  .page-header {
    padding: 65px 6%;
  }

  .page-header h1 {
    font-size: 38px;
  }

  .page-header p {
    font-size: 17px;
  }

  .course-title h1 {
    font-size: 34px;
  }

  .course-title p {
    font-size: 16px;
  }

  .course-hero {
    padding: 50px 6%;
  }

  .course-roadmap {
    height: auto;
    display: grid;
    gap: 22px;
  }

  .course-bg,
  .course-road,
  .course-palace,
  .course-student {
    display: none;
  }

  .course-card,
  .course-card-1,
  .course-card-2,
  .course-card-3,
  .course-card-4 {
    position: static;
    width: 100%;
  }

  .course-features {
    grid-template-columns: 1fr;
    margin-top: 25px;
  }

  .footer {
    padding: 45px 6%;
    text-align: center;
  }

  .footer-container {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-col p {
    white-space: normal;
  }

  .footer-logo {
    width: 145px;
  }

  .map-box iframe {
    height: 230px;
  }

  .social-buttons {
    right: 12px;
    bottom: 12px;
  }

  .social-buttons a {
    padding: 11px 15px;
    font-size: 13px;
  }
}
/* =========================
   MOBILE MENU
========================= */

.menu-toggle {
  display: none;
}

.mobile-menu {
  display: none;
}

.close-menu {
  display: none;
}

@media (max-width: 768px) {

  .navbar {
    position: sticky;
    top: 0;
    z-index: 999;
    padding: 15px 6%;
    justify-content: center;
  }

  .navbar ul {
    display: none;
  }

  .menu-toggle {
    display: block;
    position: absolute;
    left: 20px;
    background: none;
    border: none;
    font-size: 30px;
    color: #0f172a;
    cursor: pointer;
  }

  .logo img {
    height: 58px;
  }

  .mobile-menu {
    display: flex;
    position: fixed;
    top: 0;
    left: -100%;
    width: 82%;
    height: 100vh;
    background: white;
    z-index: 2000;
    padding: 35px 28px;
    flex-direction: column;
    gap: 22px;
    box-shadow: 10px 0 30px rgba(0,0,0,0.15);
    transition: 0.35s ease;
  }

  .mobile-menu.active {
    left: 0;
  }

  .mobile-logo img {
    width: 140px;
    margin-bottom: 20px;
  }

  .mobile-menu a {
  text-decoration: none;
  color: #0284c7;
  font-size: 20px;
  font-weight: 700;
  padding: 10px 0;
  border-bottom: 1px solid #e5e7eb;
  transition: 0.3s;
}

.mobile-menu a:hover {
  color: #0369a1;
  padding-left: 6px;
}

.close-menu {
  display: block;
  position: absolute;
  right: 20px;
  top: 20px;
  background: #0ea5e9;
  color: white;
  border: none;
  width: 42px;
  height: 42px;
  font-size: 28px;
  border-radius: 10px;
  cursor: pointer;
}
}
@media (min-width: 769px) {
  .menu-toggle {
    display: none !important;
  }

  .mobile-menu {
    display: none !important;
  }

  .navbar ul {
    display: flex !important;
  }
}

@media (max-width: 768px) {
  .navbar ul {
    display: none !important;
  }

  .menu-toggle {
    display: block !important;
  }
}
/* =========================
   FIX DESKTOP + MOBILE MENU
========================= */

@media (min-width: 769px) {

  .menu-toggle {
    display: none !important;
  }

  .mobile-menu {
    display: none !important;
  }

  .navbar ul {
    display: flex !important;
  }

}

@media (max-width: 768px) {

  .navbar ul {
    display: none !important;
  }

  .menu-toggle {
    display: block !important;
  }

}
/* =========================
   COURSE HERO BACKGROUND
========================= */

/* =========================
   COURSE HERO
========================= */

/* DESKTOP */

.course-hero{
  position: relative;
  padding: 80px 6%;
  background-image: url("images/khoa-hoc-bg.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  overflow: hidden;
}

/* Overlay trắng nhẹ */

.course-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(255,255,255,0.35);
}

/* Nội dung nổi lên */

.course-title,
.course-roadmap,
.course-features{
  position:relative;
  z-index:2;
}

/* =========================
   MOBILE
========================= */

@media (max-width:768px){

  .course-hero{

    background-image: url("images/trung-tam-int.png");

    background-size: cover;

    background-position: center;

    padding: 60px 5%;
  }

}

/* Lớp phủ trắng nhẹ */

.course-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(255,255,255,0.35);
}

/* Đưa nội dung nổi lên trên */

.course-title,
.course-roadmap,
.course-features{
  position:relative;
  z-index:2;
}

/* Khoảng cách đẹp hơn */

.course-roadmap{
  margin-top:50px;
}
/* =========================
   COURSE FEATURES WITH ICONS
========================= */

.course-features {
  max-width: 1180px;
  margin: 30px auto 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  background: #ffffff;
  padding: 24px 32px;
  border-radius: 22px;
  box-shadow: 0 18px 45px rgba(15, 103, 221, 0.12);
}

.course-feature-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.feature-icon {
  width: 58px;
  height: 58px;
  min-width: 58px;
  border-radius: 16px;
  background: #eef6ff;
  color: #0f66dd;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
}

.course-feature-item h4 {
  font-size: 18px;
  color: #0d2d63;
  margin-bottom: 4px;
}

.course-feature-item p {
  font-size: 15px;
  color: #5f6f86;
  line-height: 1.4;
}

@media (max-width: 768px) {
  .course-features {
    grid-template-columns: 1fr;
    padding: 22px;
  }

  .course-feature-item {
    align-items: flex-start;
  }
}
.card-image{
  width:100%;
  height:160px;
  object-fit:cover;
  border-radius:16px;
  margin:14px 0 18px;
}
.card-image{
  display:block !important;
  width:100% !important;
  height:160px !important;
  object-fit:cover !important;
  border-radius:16px !important;
  margin:14px 0 18px !important;
}
.page-content > p{
  text-align:center;
  max-width:1000px;
  margin:-20px auto 40px;
  line-height:1.8;
}
/* =========================
   BLOG CATEGORY BOXES
========================= */

.blog-section {
  padding: 80px 8%;
  background: #f8fafc;
}

.blog-grid {
  max-width: 1200px;
  margin: auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}

.blog-box {
  background: white;
  border-radius: 26px;
  padding: 34px 28px;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 16px 40px rgba(15, 103, 221, 0.08);
  transition: 0.35s;
  border: 1px solid #e0f2fe;
}

.blog-box:hover {
  transform: translateY(-10px);
  box-shadow: 0 24px 50px rgba(15, 103, 221, 0.14);
}

.blog-icon {
  width: 64px;
  height: 64px;
  background: #e0f2fe;
  color: #0ea5e9;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 34px;
  margin-bottom: 22px;
}

.blog-box h3 {
  font-size: 24px;
  color: #0284c7;
  margin-bottom: 12px;
}

.blog-box p {
  color: #475569;
  line-height: 1.7;
}

/* =========================
   BLOG POST LIST
========================= */

.blog-post-section {
  padding: 80px 8%;
  background: #f8fafc;
}

.post-list {
  max-width: 900px;
  margin: auto;
  display: grid;
  gap: 18px;
}

.post-item {
  background: white;
  padding: 24px 28px;
  border-radius: 20px;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 12px 32px rgba(15, 103, 221, 0.08);
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 12px 20px;
  transition: 0.3s;
}

.post-item:hover {
  transform: translateY(-5px);
}

.post-item span {
  width: 42px;
  height: 42px;
  background: #0ea5e9;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}

.post-item h3 {
  color: #0f172a;
  font-size: 22px;
}

.post-item p {
  grid-column: 2;
  color: #64748b;
}

@media (max-width: 1000px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .blog-grid {
    grid-template-columns: 1fr;
  }

  .blog-section,
  .blog-post-section {
    padding: 55px 6%;
  }

  .post-item {
    grid-template-columns: 1fr;
  }

  .post-item p {
    grid-column: 1;
  }
}