:root{
  --pulse-bg:#05070d;
  --pulse-panel:rgba(12,16,28,.72);
  --pulse-line:rgba(255,255,255,.12);
  --pulse-text:#f7f8ff;
  --pulse-muted:rgba(232,237,255,.62);
  --pulse-accent:#ffb02e;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body.pulse-page{margin:0;background:radial-gradient(circle at 50% 0,#172544 0,#05070d 46%,#020309 100%);color:var(--pulse-text);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;overflow:hidden}
.pulse-shell{height:100dvh;position:relative;overflow:hidden}
.pulse-top{position:fixed;inset:0 0 auto;z-index:30;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px max(18px,calc((100vw - 1180px)/2));background:linear-gradient(180deg,rgba(3,5,12,.88),rgba(3,5,12,0));pointer-events:none}
.pulse-brand,.pulse-home{pointer-events:auto;display:inline-flex;align-items:center;gap:10px;color:var(--pulse-text);text-decoration:none;font-weight:800}
.pulse-brand-dot{width:9px;height:9px;border-radius:50%;background:var(--pulse-accent);box-shadow:0 0 22px rgba(255,176,46,.75)}
.pulse-home{font-size:13px;font-weight:700;color:var(--pulse-muted);border:1px solid var(--pulse-line);border-radius:999px;padding:10px 14px;background:rgba(255,255,255,.05);backdrop-filter:blur(16px)}
.pulse-cats{position:fixed;top:70px;left:0;right:0;z-index:25;display:flex;gap:8px;overflow-x:auto;padding:8px max(18px,calc((100vw - 1180px)/2));scrollbar-width:none}
.pulse-cats::-webkit-scrollbar{display:none}
.pulse-cat{border:1px solid var(--pulse-line);border-radius:999px;padding:9px 15px;background:rgba(255,255,255,.06);color:var(--pulse-muted);font:700 12px/1 Inter,system-ui,sans-serif;cursor:pointer;white-space:nowrap;backdrop-filter:blur(16px);transition:.2s ease}
.pulse-cat:hover,.pulse-cat.active{background:var(--pulse-accent);border-color:var(--pulse-accent);color:#10131d}
.pulse-feed{height:100dvh;overflow-y:auto;overflow-x:hidden;scroll-snap-type:y mandatory;scrollbar-width:none}
.pulse-feed::-webkit-scrollbar{display:none}
.pulse-card{height:100dvh;scroll-snap-align:start;scroll-snap-stop:always;display:flex;align-items:center;justify-content:center;padding:112px 16px 28px;position:relative}
.pulse-frame{width:min(100%,430px);height:min(760px,calc(100dvh - 140px));aspect-ratio:9/16;position:relative;overflow:hidden;border-radius:28px;background:#0b0f19;border:1px solid var(--pulse-line);box-shadow:0 34px 100px rgba(0,0,0,.55)}
.pulse-video,.pulse-embed,.pulse-poster{position:absolute;inset:0;width:100%;height:100%;border:0;display:block;object-fit:cover;background:#0b0f19}
.pulse-poster{background-size:cover;background-position:center;filter:saturate(1.05)}
.pulse-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.28),transparent 34%,rgba(0,0,0,.78));pointer-events:none}
.pulse-hit{position:absolute;inset:0;z-index:4;border:0;background:transparent;cursor:pointer}
.pulse-copy{position:absolute;left:22px;right:92px;bottom:28px;z-index:8;text-shadow:0 2px 18px rgba(0,0,0,.55)}
.pulse-chip{display:inline-flex;margin-bottom:10px;border:1px solid rgba(255,176,46,.42);border-radius:999px;padding:5px 9px;background:rgba(255,176,46,.14);color:#ffd58b;font-size:10px;font-weight:900;letter-spacing:.14em;text-transform:uppercase}
.pulse-copy h2{margin:0 0 8px;font:850 clamp(22px,5vw,34px)/1.02 Inter,system-ui,sans-serif;letter-spacing:-.04em}
.pulse-copy p{margin:0;color:rgba(245,247,255,.72);font-size:13px;font-weight:650}
.pulse-actions{position:absolute;right:16px;bottom:28px;z-index:10;display:flex;flex-direction:column;gap:12px}
.pulse-action{width:50px;height:50px;border-radius:50%;border:1px solid rgba(255,255,255,.18);background:rgba(9,12,20,.58);color:#fff;display:grid;place-items:center;text-decoration:none;font-size:18px;font-weight:900;cursor:pointer;backdrop-filter:blur(18px);transition:.2s ease}
.pulse-action:hover{transform:translateY(-2px);background:rgba(255,255,255,.16)}
.pulse-watch{position:absolute;left:50%;top:50%;z-index:12;transform:translate(-50%,-50%);border-radius:999px;padding:12px 18px;background:rgba(255,176,46,.96);color:#111827;text-decoration:none;font-weight:850;box-shadow:0 20px 50px rgba(0,0,0,.35)}
.pulse-empty{margin:auto;text-align:center;max-width:320px;color:var(--pulse-muted)}
.pulse-empty h2{color:var(--pulse-text)}
.pulse-toast{position:fixed;left:50%;bottom:28px;z-index:50;transform:translate(-50%,18px);opacity:0;pointer-events:none;border:1px solid var(--pulse-line);border-radius:14px;padding:11px 15px;background:rgba(9,12,20,.88);color:var(--pulse-text);font-weight:750;backdrop-filter:blur(18px);transition:.22s ease}
.pulse-toast.show{opacity:1;transform:translate(-50%,0)}
.pulse-note{position:fixed;left:50%;top:118px;z-index:20;transform:translateX(-50%);color:rgba(245,247,255,.58);font-size:12px;font-weight:700;text-align:center;pointer-events:none}

@media (min-width:900px){
  .pulse-card{padding-top:88px}
  .pulse-frame{height:min(820px,calc(100dvh - 116px))}
  .pulse-frame::before{content:"";position:absolute;inset:-1px;border-radius:inherit;pointer-events:none;box-shadow:inset 0 0 0 1px rgba(255,255,255,.08);z-index:12}
}

@media (max-width:640px){
  .pulse-top{padding:12px 14px}
  .pulse-brand{font-size:15px}
  .pulse-home{font-size:0;width:40px;height:40px;justify-content:center;padding:0}
  .pulse-home::before{content:"←";font-size:18px}
  .pulse-cats{top:58px;padding:8px 14px}
  .pulse-card{padding:92px 0 0}
  .pulse-frame{width:100%;height:calc(100dvh - 92px);border-radius:24px 24px 0 0;border-left:0;border-right:0;border-bottom:0}
  .pulse-copy{left:18px;right:82px;bottom:24px}
  .pulse-actions{right:14px;bottom:24px}
  .pulse-action{width:46px;height:46px}
  .pulse-note{display:none}
}