* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
:root {
  --glass: rgba(255,255,255,0.08);
  --glass-border: rgba(255,255,255,0.14);
  --text: #f2f2f7;
  --text-dim: #9a9aa3;
  --accent: #0a84ff;
}
html, body { height: 100%; }
body {
  font-family: -apple-system, 'SF Pro Text', 'Segoe UI', Arial, sans-serif;
  background: linear-gradient(160deg, #0b0b10 0%, #14141d 45%, #0d1220 100%);
  color: var(--text);
  min-height: 100vh;
}
#app { max-width: 720px; margin: 0 auto; padding: 20px 16px 40px; }
#topbar h1 { font-size: 26px; font-weight: 700; letter-spacing: 0.3px; }
#topbar .sub { color: var(--text-dim); font-size: 13px; margin-top: 4px; }
.hidden { display: none !important; }

.picker { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 22px; }
.ch-card {
  position: relative; border-radius: 22px; padding: 26px 18px;
  background: var(--glass); border: 1px solid var(--glass-border);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  cursor: pointer; text-align: center; transition: transform .12s ease, background .2s;
}
.ch-card:active { transform: scale(0.96); background: rgba(255,255,255,0.14); }
.ch-card .num { font-size: 34px; font-weight: 800; }
.ch-card .name { margin-top: 6px; font-size: 13px; color: var(--text-dim); }
.ch-card .live { position: absolute; top: 12px; inset-inline-start: 12px; display: flex; align-items: center; gap: 5px; font-size: 10px; color: #ff453a; font-weight: 700; }
.ch-card .live::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: #ff453a; animation: pulse 1.4s infinite; }
@keyframes pulse { 50% { opacity: 0.35; } }

#player-view { margin-top: 18px; }
.player-frame { border-radius: 20px; overflow: hidden; background: #000; border: 1px solid var(--glass-border); }
#video { display: block; width: 100%; aspect-ratio: 16/9; background: #000; }
.switch-bar { display: flex; gap: 10px; margin-top: 14px; overflow-x: auto; padding-bottom: 4px; }
.sw-btn {
  flex: 0 0 auto; padding: 9px 18px; border-radius: 999px;
  background: var(--glass); border: 1px solid var(--glass-border); color: var(--text);
  font-size: 14px; cursor: pointer; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
}
.sw-btn.active { background: rgba(10,132,255,0.4); border-color: var(--accent); }
.ghost-btn {
  margin-top: 16px; width: 100%; padding: 13px; border-radius: 14px;
  background: var(--glass); border: 1px solid var(--glass-border); color: var(--text);
  font-size: 15px; cursor: pointer; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
}
.diag { margin-top: 12px; font-size: 11px; color: var(--text-dim); direction: ltr; text-align: left; white-space: pre-wrap; }

/* channel logos */
.ch-card .logo-wrap { display: flex; align-items: center; justify-content: center; height: 64px; }
.ch-card .logo { max-height: 56px; max-width: 72%; object-fit: contain; }
.ch-card .logo.logo-on-white { background: #fff; border-radius: 12px; padding: 6px 12px; }
.ch-card .num { display: none; font-size: 34px; font-weight: 800; }
.sw-btn { display: flex; align-items: center; justify-content: center; padding: 7px 14px; }
.sw-btn .sw-logo { height: 22px; max-width: 78px; object-fit: contain; }
.sw-btn .sw-logo.logo-on-white { background: #fff; border-radius: 6px; padding: 2px 7px; }
.err-bar {
  margin-top: 12px; padding: 11px 14px; border-radius: 12px;
  background: rgba(255,69,58,0.15); border: 1px solid rgba(255,69,58,0.45);
  color: #ffb3ad; font-size: 13px; line-height: 1.5;
}

/* gate view */
#gate-view { margin-top: 40px; }
.gate-card {
  border-radius: 22px; padding: 34px 24px; text-align: center;
  background: var(--glass); border: 1px solid var(--glass-border);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
}
.gate-card p { font-size: 16px; line-height: 1.7; margin-bottom: 18px; }
.gate-card a.ghost-btn { display: block; text-decoration: none; margin-top: 6px; }
.admin-card { padding: 16px; }
.admin-card h2 { font-size: 1.1rem; margin: 0 0 12px; }
.admin-group { margin-bottom: 16px; }
.admin-group h3 { font-size: .95rem; margin: 0 0 6px; opacity: .8; }
.admin-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 8px; border: 1px solid rgba(255,255,255,.12); border-radius: 8px; margin-bottom: 6px; font-size: .85rem; }
.admin-row .who { min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.admin-row .meta { opacity: .6; font-size: .75rem; }
.admin-row button { flex: none; padding: 4px 10px; border-radius: 6px; border: 0; cursor: pointer; font-size: .8rem; }
.admin-row .ok { background: #1d7a3d; color: #fff; }
.admin-row .no { background: #8a2b2b; color: #fff; }
.admin-stats { font-size: .85rem; opacity: .85; line-height: 1.7; }