:root{
  --bg:#0b0f17;
  --card:#111827;
  --text:#f3f4f6;
  --muted:#9ca3af;
  --primary:#ef4444;
  --ghost:#2a3343;
  --border:#1f2937;
  --radius:14px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 16px}
.skip-link{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip-link:focus{left:16px;top:16px;width:auto;height:auto;background:#000;color:#fff;padding:8px 12px;border-radius:8px;z-index:1000}

.site-header{
  position:sticky;top:0;z-index:50;
  border-bottom:1px solid var(--border);
  backdrop-filter:saturate(140%) blur(6px);
  background:linear-gradient(180deg, rgba(11,15,23,.9), rgba(11,15,23,.6) 70%, rgba(11,15,23,0));
}
.header-inner{display:flex;align-items:center;gap:16px;padding:12px 0}
.logo{display:inline-flex;align-items:center;gap:8px;text-decoration:none}
.site-nav{margin-left:auto}
.nav-list{display:flex;gap:16px;list-style:none;margin:0;padding:0}
.nav-list a{padding:8px 10px;border-radius:8px;text-decoration:none}
.nav-list a:hover{background:var(--ghost)}

.auth{display:flex;gap:10px;margin-left:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.65rem 1rem;border-radius:10px;text-decoration:none;border:1px solid transparent;white-space:nowrap}
.btn-primary{background:var(--primary);border-color:transparent;color:#fff;font-weight:600}
.btn-ghost{background:transparent;border-color:var(--border);color:var(--text)}

/* === Slider === */
.banner-slider{position:relative;border-bottom:1px solid var(--border);aspect-ratio:1600/395;max-height:520px;overflow:hidden}
.banner-slider .slide{position:absolute;inset:0;margin:0;opacity:0;transition:opacity .6s ease;pointer-events:none;will-change:opacity;backface-visibility:hidden}
.banner-slider .slide.is-active{opacity:1;pointer-events:auto}
.banner-slider img{width:100%;height:100%;object-fit:cover;display:block}

/* Caption: only button (texts are sr-only to avoid double overlay) */
.banner-caption{position:absolute;left:5%;bottom:8%;max-width:min(48ch,46%);display:flex;gap:12px;color:#fff;pointer-events:none}
.banner-caption .btn{pointer-events:auto;align-self:flex-start}

/* Arrows */
.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:999px;border:1px solid #ffffff33;background:#00000055;color:#fff;font-size:26px;display:grid;place-items:center;cursor:pointer}
.slider-arrow:hover{background:#00000077}
.slider-arrow.prev{left:10px}
.slider-arrow.next{right:10px}

/* Dots */
.slider-dots{position:absolute;left:5%;bottom:4%;display:flex;gap:8px}
.slider-dots .dot{width:10px;height:10px;border-radius:50%;background:#ffffff66;border:0;cursor:pointer}
.slider-dots .dot.is-active{background:#fff}

/* Distinct tints to emphasise slide change even if images identical */
.banner-slider .slide::after{content:"";position:absolute;inset:0;pointer-events:none;mix-blend-mode:soft-light;opacity:.18;transition:opacity .6s ease}
.banner-slider .s1::after{background:linear-gradient(90deg,#ff3e3e,#ff9d00)}
.banner-slider .s2::after{background:linear-gradient(90deg,#1e3a8a,#22d3ee)}
.banner-slider .s3::after{background:linear-gradient(90deg,#0ea5e9,#34d399)}

.strip{border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:#0e1420}
.section-title{font-size:1.5rem;margin:20px 0 10px}
.muted{color:var(--muted)}

.chips{display:flex;gap:8px;flex-wrap:wrap;list-style:none;margin:10px 0 20px;padding:0}
.chips a{display:inline-block;padding:8px 12px;border:1px solid var(--border);border-radius:999px;text-decoration:none}
.chips a:hover{background:var(--ghost)}

.hero-title{font-size:clamp(32px,4.4vw,36px);line-height:1.05;margin:0 0 12px;font-weight:800;letter-spacing:.2px}

.cards{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid{display:grid;gap:16px;margin:12px 0 28px}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.card img{aspect-ratio:16/9;object-fit:cover;background:#0b1220}
.card-title{font-size:1.05rem;margin:12px 12px 0}
.card-actions{display:flex;gap:8px;padding:12px}

.site-footer{border-top:1px solid var(--border);margin-top:24px}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 0;color:var(--muted)}
.footer-inner a{color:var(--muted);text-decoration:none;margin-right:12px}
.footer-inner a:hover{color:var(--text)}

@media (max-width: 900px){
  .banner-caption{left:4%;bottom:6%;max-width:70%}
  .cards{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width: 520px){
  .nav-list{display:none}
  .banner-slider{aspect-ratio:16/9}
  .cards{grid-template-columns:1fr}
}

/* sr-only helper */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}