:root{
  --bg:#16181d;
  --bg-2:#1d2027;
  --panel:#22262e;
  --panel-2:#2a2f39;
  --line:#333945;
  --txt:#eef1f5;
  --txt-2:#aeb6c2;
  --txt-3:#7b8492;
  --accent:#3b9dff;
  --accent-2:#1f6fd6;
  --radius:16px;
  --shadow:0 24px 70px rgba(0,0,0,.45);
  --maxw:1180px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  background:radial-gradient(1200px 600px at 50% -10%, #20242c 0%, var(--bg) 60%) fixed;
  color:var(--txt);
  font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  min-height:100vh;
}
img{image-rendering:auto}

.app{max-width:var(--maxw);margin:0 auto;padding:22px clamp(14px,4vw,40px) 40px;display:flex;flex-direction:column;min-height:100vh}

/* header */
.hero{margin-bottom:18px}
.hero-inner{display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap}
.logo{font-size:clamp(20px,3vw,26px);font-weight:700;letter-spacing:-.2px}
.logo::after{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--accent);margin-left:7px;vertical-align:middle}
.hero-meta{display:flex;align-items:center;gap:8px;color:var(--txt-3);font-size:13.5px}
.kicker{text-transform:uppercase;letter-spacing:.16em;font-weight:600;color:var(--accent);font-size:12px}
.dot{color:var(--txt-3)}

/* stage / slider */
.stage{display:flex;align-items:center;gap:10px}
.slider{flex:1;min-width:0;overflow:hidden;border-radius:var(--radius)}
.track{display:flex;transition:transform .55s cubic-bezier(.22,.61,.36,1);will-change:transform}
.slide{flex:0 0 100%;min-width:0;padding:2px}
.card{
  background:linear-gradient(180deg,var(--panel) 0%,var(--bg-2) 100%);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  display:grid;
  grid-template-columns:1.45fr 1fr;
  align-items:center;
}
.card-media{position:relative;background:#0c0d10;cursor:zoom-in;overflow:hidden;display:flex;align-items:center;justify-content:center;align-self:stretch}
.card-media img{width:100%;height:auto;display:block}
.card-media .zoom-hint{position:absolute;right:12px;bottom:12px;background:rgba(0,0,0,.55);backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.14);color:#fff;font-size:11.5px;padding:5px 10px;border-radius:999px;opacity:0;transition:opacity .2s;pointer-events:none}
.card-media:hover .zoom-hint{opacity:1}
.card-body{padding:clamp(20px,2.6vw,38px);display:flex;flex-direction:column;justify-content:center;gap:14px}
.card-index{font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.card-title{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.15;margin:0;letter-spacing:-.3px}
.card-tagline{color:var(--txt-2);font-weight:500;font-size:15px;margin:-6px 0 2px}
.card-text{color:var(--txt-2);font-size:15px;line-height:1.72;margin:0}
.card-text::selection,.card-title::selection{background:var(--accent);color:#fff}

/* arrows */
.arrow{
  flex:0 0 auto;width:50px;height:50px;border-radius:50%;
  background:var(--panel);border:1px solid var(--line);color:var(--txt);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background .15s,border-color .15s,transform .15s,opacity .15s;
}
.arrow:hover{background:var(--accent-2);border-color:var(--accent-2)}
.arrow:active{transform:scale(.94)}
.arrow:disabled{opacity:.35;cursor:default;background:var(--panel);border-color:var(--line)}

/* dots */
.dots{display:flex;justify-content:center;flex-wrap:wrap;gap:9px;margin:22px 0 6px}
.dots button{width:9px;height:9px;padding:0;border-radius:50%;border:none;background:var(--line);cursor:pointer;transition:background .2s,transform .2s}
.dots button:hover{background:var(--txt-3)}
.dots button[aria-current="true"]{background:var(--accent);transform:scale(1.35)}

/* footer thumbs + progress */
.footnav{margin-top:14px}
.progress{height:3px;background:var(--line);border-radius:3px;overflow:hidden;margin-bottom:14px}
.progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent),#7cc0ff);border-radius:3px;transition:width .45s ease}
.thumbs{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;scrollbar-width:thin;scrollbar-color:var(--line) transparent}
.thumbs::-webkit-scrollbar{height:7px}
.thumbs::-webkit-scrollbar-thumb{background:var(--line);border-radius:7px}
.thumb{flex:0 0 auto;width:108px;height:62px;border-radius:9px;overflow:hidden;border:2px solid transparent;cursor:pointer;background:#0c0d10;opacity:.6;transition:opacity .2s,border-color .2s}
.thumb img{width:100%;height:100%;object-fit:cover;display:block}
.thumb:hover{opacity:.9}
.thumb[aria-current="true"]{opacity:1;border-color:var(--accent)}

/* lightbox */
.lightbox{position:fixed;inset:0;background:rgba(8,9,11,.94);display:none;align-items:center;justify-content:center;z-index:60;padding:28px;cursor:zoom-out}
.lightbox.open{display:flex}
.lightbox img{max-width:95vw;max-height:92vh;border-radius:10px;box-shadow:0 30px 90px rgba(0,0,0,.7)}
.lightbox-close{position:absolute;top:16px;right:22px;font-size:34px;line-height:1;color:#fff;background:none;border:none;cursor:pointer;opacity:.8}
.lightbox-close:hover{opacity:1}

/* responsive */
@media (max-width:820px){
  .card{grid-template-columns:1fr}
  .arrow{width:42px;height:42px}
}
@media (max-width:520px){
  .thumb{width:92px;height:54px}
  .hero-meta{font-size:12.5px}
}
@media (prefers-reduced-motion:reduce){
  .track{transition:none}
}