* {
  margin:0; padding:0; box-sizing:border-box;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
  -webkit-user-drag: none;
}
html, body { width:100%; height:100%; background:#0b0b0c; overflow:hidden; }
body {
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  color:#f2f2f2;
}
#app { width:100%; height:100%; display:flex; flex-direction:column; }

/* HEADER */
#header {
  display:flex; align-items:center; justify-content:space-between;
  padding: 28px 60px; background:#0b0b0c; border-bottom:2px solid #1c1c1e;
  flex-shrink:0;
}
.logo { font-size:36px; font-weight:900; letter-spacing:2px; color:#53fc18; }
#nav { display:flex; gap:16px; }
.nav-item {
  font-family:inherit; font-size:20px; font-weight:700; color:#9a9a9a;
  background:transparent; border:2px solid transparent; padding:10px 26px;
  border-radius:6px; cursor:pointer;
}
.nav-item.active { color:#0b0b0c; background:#53fc18; }
.nav-item:focus { outline:none; border-color:#f2f2f2; }

/* MAIN / SCREENS */
#main { flex:1; position:relative; overflow:hidden; }
.screen {
  position:absolute; top:0; left:0; width:100%; height:100%;
  padding: 36px 60px; overflow-y:auto; display:none;
}
.screen.active { display:block; }

.section-title {
  font-size:22px; font-weight:700; color:#f2f2f2; margin-bottom:22px;
  text-transform:uppercase; letter-spacing:1px;
}

.grid { display:flex; flex-wrap:wrap; gap:26px; }

/* CARD - live stream */
.card {
  width:360px; background:#151517; border-radius:8px; overflow:hidden;
  border:3px solid transparent; cursor:pointer;
}
.card:focus { outline:none; border-color:#53fc18; transform:scale(1.035); }
.card-thumb-wrap { position:relative; width:100%; height:202px; background:#1c1c1e; }
.card-thumb {
  width:100%; height:100%; background-color:#1c1c1e;
  background-size:cover; background-position:center; background-repeat:no-repeat;
}
.live-badge {
  position:absolute; top:10px; left:10px; background:#e33; color:#fff;
  font-size:12px; font-weight:800; padding:4px 8px; border-radius:4px;
  display:flex; align-items:center; gap:6px; letter-spacing:0.5px;
}
.live-dot {
  width:8px; height:8px; border-radius:50%; background:#fff;
  animation: pulse 1.4s infinite ease-in-out;
}
@keyframes pulse { 0%,100% { opacity:1; } 50% { opacity:0.35; } }
.viewer-badge {
  position:absolute; bottom:10px; right:10px; background:rgba(0,0,0,0.75);
  font-size:12px; font-weight:700; padding:4px 8px; border-radius:4px;
}
.card-body { padding:14px 16px; }
.card-user { font-size:17px; font-weight:800; color:#f2f2f2; }
.card-title {
  font-size:14px; color:#9a9a9a; margin-top:4px; height:34px;
  overflow:hidden; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical;
}
.card-cat { font-size:13px; color:#53fc18; margin-top:8px; font-weight:700; }

/* SKELETON LOADING */
.skeleton-card { width:360px; border-radius:8px; overflow:hidden; }
.skeleton-thumb { width:100%; height:202px; background:#42474d; }
.skeleton-line { height:16px; background:#42474d; border-radius:4px; margin-top:14px; }
.skeleton-line.w60 { width:60%; }
.skeleton-line.w90 { width:90%; }
.skeleton-line.w40 { width:40%; margin-top:10px; }
.skeleton-cat-card { width:220px; border-radius:8px; overflow:hidden; }
.skeleton-cat-banner { width:100%; height:280px; background:#42474d; }
.skeleton-cat-body { padding:12px 14px; }

/* CARD - category */
.cat-card {
  width:220px; background:#151517; border-radius:8px; overflow:hidden;
  border:3px solid transparent; cursor:pointer;
}
.cat-card:focus { outline:none; border-color:#53fc18; transform:scale(1.035); }
.cat-banner {
  width:100%; height:280px; background-color:#1c1c1e;
  background-size:cover; background-position:center; background-repeat:no-repeat;
}
.cat-body { padding:12px 14px; }
.cat-name { font-size:16px; font-weight:800; }
.cat-viewers { font-size:13px; color:#9a9a9a; margin-top:4px; }

/* PLAYER */
#screen-player { padding:0; }
#player-wrap { width:100%; height:100%; background:#000; position:relative; }
#video { width:100%; height:100%; background:#000; }
#player-info {
  position:absolute; bottom:0; left:0; right:0;
  padding:24px 50px; background:linear-gradient(transparent, rgba(0,0,0,0.85));
}
#player-title { font-size:22px; font-weight:800; }
#player-meta { font-size:15px; color:#9a9a9a; margin-top:6px; }
#player-back {
  position:absolute; top:24px; left:40px; background:rgba(0,0,0,0.6);
  color:#f2f2f2; border:2px solid transparent; font-size:16px; font-weight:700;
  padding:10px 22px; border-radius:6px; cursor:pointer;
}
#player-back:focus { outline:none; border-color:#53fc18; }

/* LOADING / TOAST */
#loading {
  display:none; position:fixed; top:0; left:0; width:100%; height:100%;
  background:rgba(11,11,12,0.85); color:#53fc18; font-size:22px; font-weight:800;
  align-items:center; justify-content:center; z-index:50;
}
#loading.show { display:flex; }
#toast {
  display:none; position:fixed; bottom:40px; left:50%; margin-left:-220px;
  width:440px; background:#2a1414; border:2px solid #e33; color:#f2f2f2;
  padding:16px 20px; border-radius:8px; font-size:15px; z-index:60; text-align:center;
}
#toast.show { display:block; }