/* Reset / base */
*{margin:0;padding:0;box-sizing:border-box;font-family:'Poppins',sans-serif;}

/* Header */
.work-header{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  align-items:flex-start;
  gap:clamp(24px,6vw,70px);
  padding:clamp(80px,10vw,140px) clamp(16px,8vw,120px) clamp(50px,8vw,90px);
}
.work-left h1{
  font-size:clamp(42px,8vw,76px);
  font-weight:800;
  line-height:1.05;
}
.work-right{
  width:46%;
  min-width:280px;
}
.work-right p{
  font-size:clamp(16px,2.2vw,20px);
  line-height:1.7;
  color:#333;
}

/* Tabs */
.work-tabs{
  position:sticky;
  top:calc(var(--header-height,100px)+12px);
  z-index:2;
  text-align:center;
  margin:32px 0 36px;
  background:#fff;
  padding:12px 0;
}
.work-tabs button{
  background:none;
  border:none;
  font-size:clamp(16px,2vw,20px);
  margin:6px 14px;
  cursor:pointer;
  font-weight:700;
  padding:8px 4px;
  border-bottom:3px solid transparent;
  transition:color .25s ease,border-color .25s ease,transform .2s ease;
}
.work-tabs button.active{
  color:#e4002b;
  border-bottom:3px solid #e4002b;
  transform:translateY(-2px);
}

/* Grid */
.work-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:clamp(16px,3vw,28px);
  padding:0 clamp(16px,8vw,120px) clamp(50px,8vw,90px);
}
.work-item{
  animation:fadeUp .5s ease forwards;
  opacity:0;
}
.work-item:nth-child(1){animation-delay:.05s;}
.work-item:nth-child(2){animation-delay:.1s;}
.work-item:nth-child(3){animation-delay:.15s;}
.work-item:nth-child(4){animation-delay:.2s;}
.work-item img{
  width:100%;
  border-radius:8px;
  transition:transform .3s ease,box-shadow .3s ease;
}
.work-item:hover img{
  transform:scale(1.04) translateY(-4px);
  box-shadow:0 14px 30px rgba(0,0,0,0.18);
}
/* fade-out when hidden via filter */
.work-item.hide{
  animation:fadeOut .3s ease forwards;
}

@keyframes fadeUp{
  from{opacity:0;transform:translateY(12px);}
  to{opacity:1;transform:translateY(0);}
}
@keyframes fadeOut{
  from{opacity:1;transform:translateY(0);}
  to{opacity:0;transform:translateY(8px);}
}

/* Responsive */
@media(max-width:1024px){
  .work-header{
    padding:clamp(70px,8vw,110px) clamp(16px,7vw,60px) 60px;
    gap:30px;
  }
  .work-left h1{font-size:clamp(40px,6vw,60px);}
  .work-right{width:100%;}
  .work-right p{font-size:17px;line-height:1.6;}
  .work-grid{grid-template-columns:repeat(3,1fr);padding:0 clamp(16px,6vw,60px) 60px;}
}
@media(max-width:768px){
  .work-header{flex-direction:column;padding:90px 18px 40px;gap:20px;}
  .work-left h1{font-size:38px;}
  .work-tabs{position:static;margin:20px 0 24px;padding:8px 0;}
  .work-tabs button{font-size:15px;margin:4px 8px;}
  .work-grid{grid-template-columns:repeat(2,1fr);padding:0 18px 40px;}
}
@media(max-width:480px){
  .work-left h1{font-size:32px;}
  .work-tabs button{font-size:14px;margin:6px;}
  .work-grid{grid-template-columns:1fr;padding:0 14px 32px;}
}