:root {
    --height-desktop: 320px;
    --height-mobile: 180px;
    --transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --text: #ffffff;
    --accent: #4ECDC4;
  }

  .banner-slider {
    width: 100%;
    max-width: 710px;
    margin: 30px auto;
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(2, 8, 23, 0.3);
    margin-left: 43px;
}

  @media (max-width: 768px) {
    .banner-slider {
      margin: 10px auto;
      max-width: 95%;
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(2,8,23,0.3);
      margin-left: 8px;
    }
  }
  
  /* viewport keeps the slider compact on small screens */
  .slider-viewport{
    overflow:hidden;
    width:100%;
    height:var(--height-desktop);
    background:linear-gradient(180deg, rgba(0,0,0,0.04), transparent);
  }
  
  /* responsive heights */
  @media (max-width:720px){
    .slider-viewport{
      height: 186px;
      margin-top: -12px;
      }
  }
  
  /* track & slides */
  .slider-track{
    display:flex;
    width:100%;
    height:100%;
    transition: transform var(--transition);
    will-change: transform;
  }
  
  .slide{
    min-width:100%;
    height:100%;
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    background-color: #f5f5f5;
    position:relative;
    display:flex;
    align-items:flex-end;
    justify-content:flex-start;
    padding: 25px;
    transform-origin:center;
    transition: transform 500ms ease, box-shadow 400ms ease;
  }

  @media (max-width: 768px) {
    .slide {
      padding: 8px;
    }
  }
  
  /* subtle parallax + depth */
  .slide::after{
    content:"";
    position:absolute;
    inset:0;
    background: linear-gradient(180deg, rgba(0,0,0,0.08) 20%, rgba(0,0,0,0.45) 100%);
    pointer-events:none;
  }
  
  /* content card inside slide */
  .slide-inner{
    position:relative;
    z-index:2;
    max-width:85%;
    color:var(--text);
    transform: translateY(0);
    transition: transform 450ms ease;
    padding:8px 12px;
    border-radius:8px;
    background: linear-gradient(90deg, rgba(255,255,255,0.1), rgba(255,255,255,0.05));
  }
  
  /* typography */
  .slide-title{
    margin:0 0 4px 0;
    font-size:clamp(0.9rem, 2.5vw, 1.3rem);
    letter-spacing:0.2px;
    font-weight: 600;
  }
  .slide-sub{
    margin:0;
    font-size:clamp(0.75rem, 2.2vw, 0.9rem);
    opacity:0.9;
  }

  @media (max-width: 768px) {
    .slide-inner {
      max-width: 90%;
      padding: 4px 8px;
    }
    
    .slide-title {
      font-size: 0.8rem;
      margin-bottom: 2px;
    }
    
    .slide-sub {
      font-size: 0.7rem;
    }
  }
  
  /* active slide pop */
  .slide.is-active{
    transform: scale(1);
    box-shadow: 0 18px 38px rgba(3,10,26,0.5);
  }
  .slide:not(.is-active){
    transform: scale(0.96);
    filter:brightness(0.95);
  }
  
  /* 3D tilt on hover (desktop) */
  @media (hover:hover) and (pointer: fine){
    .slide:hover{
      transform: perspective(900px) translateY(-6px) scale(1.01) rotateX(0.6deg);
    }
    .slide-inner{ transform: translateY(-4px); }
  }
  
  /* nav buttons */
  .nav{
    position:absolute;
    top:50%;
    transform:translateY(-50%);
    z-index:5;
    border:0;
    background:linear-gradient(180deg, rgba(255,255,255,0.15), rgba(0,0,0,0.3));
    color:var(--text);
    width:45px;
    height:45px;
    border-radius:10px;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:1.4rem;
    cursor:pointer;
    transition: all 0.3s ease;
    box-shadow: 0 6px 16px rgba(2,6,20,0.3);
    backdrop-filter: blur(6px);
    opacity: 0.7;
  }
  .nav:hover {
    opacity: 1;
    transform: translateY(-50%) scale(1.05);
    background:linear-gradient(180deg, rgba(255,255,255,0.2), rgba(0,0,0,0.4));
  }
  .nav:active{ transform:translateY(-50%) scale(.96); }
  .nav.prev{ left:15px; }
  .nav.next{ right:15px; }
  @media (max-width:768px){
    .nav{ width:28px;height:28px;font-size:1rem; }
    .nav.prev{ left:4px }
    .nav.next{ right:4px }
  }
  
  /* dots */
  .dots{
    position:absolute;
    left:50%;
    transform:translateX(-50%);
    bottom:15px;
    display:flex;
    gap:10px;
    z-index:6;
    padding: 5px 15px;
    border-radius: 20px;
    background: rgba(0,0,0,0.2);
    backdrop-filter: blur(4px);
  }
  .dot{
    width:10px;
    height:10px;
    border-radius:50%;
    border:2px solid rgba(255,255,255,0.5);
    background: transparent;
    padding:0;
    cursor:pointer;
    transition: all 0.3s ease;
  }
  .dot:hover {
    border-color: rgba(255,255,255,0.8);
    transform: scale(1.1);
  }
  .dot.is-active{
    width:30px;
    border-radius:15px;
    background: linear-gradient(90deg, var(--accent), #ffb199);
    box-shadow: 0 4px 15px rgba(255,122,89,0.3);
    border: none;
  }

  @media (max-width: 768px) {
    .dots {
      bottom: 4px;
      gap: 4px;
    }
    
    .dot {
      width: 5px;
      height: 5px;
    }
    
    .dot.is-active {
      width: 16px;
      border-radius: 8px;
    }
  }
  
  /* small screen: make caption smaller and more compact */
  @media (max-width:420px){
    .slide-inner{ max-width:92%; padding:8px; }
    .slide-title{ font-size:1rem; }
    .slide-sub{ font-size:0.85rem; }
  }
  
  /* accessibility focus */
  .nav:focus, .dot:focus { outline: 3px solid rgba(255,122,89,0.14); outline-offset: 2px; }
  
  @media (max-width: 480px) {
    .slide {
      background-size: 102% 86%; /* Even smaller on mobile */
    }
  }