/* reset */
*{ 
    box-sizing:border-box; 
    margin:0; 
    padding:0; 
}
img, video{ 
    max-width:100%; 
    display:block; 
}
html{ 
    scroll-behavior:smooth; 
}

body{
  font-family: 'Poppins', system-ui, -apple-system, 'Segoe UI', Roboto, Arial;
  color:#0b1220;
  line-height:1.6;


  background: linear-gradient(135deg, #dbeafe 0%, #eef2ff 45%, #ffe4e6 100%);
  min-height:100vh;
}


.topbar{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.55);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
}

.nav{
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
}

.brand{
  text-decoration:none;
  color:#0b1220;
  font-weight:700;
  letter-spacing:0.2px;
}

.links{
  display:flex;
  gap: 12px;
  align-items:center;
  flex-wrap:wrap;
}

.links a{
  text-decoration:none;
  color:#0b1220;
  font-weight:600;
  padding: 8px 10px;
  border-radius: 10px;
  transition: 200ms ease;
}

.links a:hover{
  background: rgba(255,255,255,0.6);
}

.back-btn{
  border: 1px solid rgba(0,0,0,0.10);
  background: rgba(255,255,255,0.45);
}

.container{
  max-width: 1100px;
  margin: 0 auto;
  padding: 22px 18px 44px;
}


.page-head{
  padding: 18px 0 10px;
}

h1{
  font-size: 2.1rem;
  line-height: 1.1;
}

.sub{
  margin-top: 8px;
  color: rgba(11,18,32,0.70);
}


.section{
  margin-top: 28px;
}

h2{
  font-size: 1.35rem;
  margin-bottom: 14px;
}


.grid{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.card{
  background: rgba(255,255,255,0.65);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: 16px;
  overflow:hidden;
  box-shadow: 0 10px 24px rgba(0,0,0,0.10);
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.card:hover{
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(0,0,0,0.14);
}

.card-link{
  color: inherit;
  text-decoration:none;
  display:block;
}


.media{
  padding: 12px;
}

.thumb,
.video{
  width:100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 12px;
  background: rgba(0,0,0,0.06);
  border: 1px solid rgba(0,0,0,0.06);
}


.body{
  padding: 0 16px 18px;
}

h3{
  font-size: 1.05rem;
  margin-top: 6px;
  margin-bottom: 6px;
}

.body p{
  color: rgba(11,18,32,0.75);
  margin-bottom: 10px;
}


.tags{
  display:flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag{
  font-size: 0.78rem;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.8);
  border: 1px solid rgba(0,0,0,0.08);
}


.bottom-actions{
  margin-top: 18px;
  display:flex;
}

.btn{
  display:inline-block;
  padding: 10px 14px;
  border-radius: 12px;
  text-decoration:none;
  font-weight:700;
  color:#0b1220;
  border: 1px solid rgba(0,0,0,0.10);
  background: rgba(255,255,255,0.55);
}

.btn:hover{
  background: rgba(255,255,255,0.85);
}


@media (max-width: 900px){
  .grid{ grid-template-columns: 1fr; }
}

@media (max-width: 560px){
  .links a{ display:none; }
  .back-btn{ display:inline-block; }
}