:root {
  --bg: #05070d;
  --panel: #0b0f1a;
  --panel-2: #11172a;
  --line: #1e2740;
  --cyan: #2de2e6;
  --violet: #7a5cff;
  --text: #e7ecf5;
  --muted: #6b7694;
  --glow: 0 0 24px rgba(45, 226, 230, 0.35);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Sora', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: grid;
  grid-template-columns: 340px 1fr;
  overflow: hidden;
}

.grid-bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(45,226,230,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45,226,230,0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse at 30% 20%, #000 40%, transparent 90%);
}

.sidebar {
  position: relative; z-index: 1;
  background: var(--panel);
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column;
  height: 100vh; padding: 22px 18px;
}

.brand { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
.logo {
  width: 44px; height: 44px; display: grid; place-items: center;
  font-size: 22px; color: var(--bg); border-radius: 12px;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  box-shadow: var(--glow);
}
.brand h1 {
  font-family: 'Orbitron', sans-serif; font-size: 20px; letter-spacing: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.brand span { font-size: 10px; letter-spacing: 4px; color: var(--muted); }

.search-box input, .filters, .channel-list { width: 100%; }
.search-box input {
  background: var(--panel-2); border: 1px solid var(--line); color: var(--text);
  padding: 11px 14px; border-radius: 10px; font-family: inherit; font-size: 14px;
  margin-bottom: 14px; outline: none; transition: border-color .2s;
}
.search-box input:focus { border-color: var(--cyan); }

.filters { display: flex; gap: 8px; margin-bottom: 16px; }
.filter {
  flex: 1; background: var(--panel-2); border: 1px solid var(--line);
  color: var(--muted); padding: 8px; border-radius: 8px; cursor: pointer;
  font-family: inherit; font-size: 13px; transition: all .2s;
}
.filter.active { color: var(--bg); background: var(--cyan); border-color: var(--cyan); }

.channel-list { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 4px; padding-right: 4px; }
.channel-list::-webkit-scrollbar { width: 6px; }
.channel-list::-webkit-scrollbar-thumb { background: var(--line); border-radius: 4px; }

/* Group headers */
.group-header {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 2px 4px;
}
.group-header:first-child { padding-top: 2px; }
.group-name {
  font-size: 10px; letter-spacing: 2px; color: var(--muted);
  text-transform: uppercase; flex: 1; overflow: hidden;
  white-space: nowrap; text-overflow: ellipsis;
}
.group-count {
  font-size: 10px; color: var(--muted); background: rgba(255,255,255,.05);
  padding: 1px 7px; border-radius: 8px; flex-shrink: 0;
}
.group-del {
  font-size: 13px; color: var(--muted); cursor: pointer;
  opacity: 0; transition: opacity .15s, color .15s; flex-shrink: 0;
}
.group-header:hover .group-del { opacity: 1; }
.group-del:hover { color: #ff5a7a; }

.channel {
  display: flex; align-items: center; gap: 10px; padding: 10px 10px;
  background: var(--panel-2); border: 1px solid transparent; border-radius: 10px;
  cursor: pointer; transition: all .18s;
}
.channel:hover { border-color: var(--line); transform: translateX(3px); }
.channel.active { border-color: var(--cyan); box-shadow: var(--glow); }
.channel .ico {
  width: 34px; height: 34px; flex-shrink: 0; border-radius: 8px;
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  display: grid; place-items: center; font-size: 14px; color: var(--bg);
}
.channel .meta { flex: 1; min-width: 0; }
.channel .meta b { font-size: 13.5px; font-weight: 600; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.channel .meta small { font-size: 11px; color: var(--muted); }
.channel .rename-btn {
  font-size: 14px; color: var(--muted); opacity: 0;
  transition: opacity .2s, color .2s; cursor: pointer; flex-shrink: 0;
}
.channel:hover .rename-btn { opacity: 1; }
.channel .rename-btn:hover { color: var(--cyan); }
.channel .star { color: var(--muted); font-size: 15px; flex-shrink: 0; }
.channel .star.on { color: var(--cyan); }
.channel .del { color: var(--muted); font-size: 16px; opacity: 0; transition: opacity .2s; flex-shrink: 0; }
.channel:hover .del { opacity: 1; }
.channel .del:hover { color: #ff5a7a; }

.sidebar-actions { display: flex; flex-direction: column; gap: 8px; margin-top: 14px; }
.btn-primary {
  background: linear-gradient(90deg, var(--cyan), var(--violet)); color: var(--bg);
  border: none; padding: 12px; border-radius: 10px; font-family: 'Orbitron', sans-serif;
  font-size: 12px; letter-spacing: 1px; cursor: pointer; transition: transform .15s;
}
.btn-primary:hover { transform: translateY(-2px); }
.btn-ghost {
  background: transparent; color: var(--muted); border: 1px solid var(--line);
  padding: 11px; border-radius: 10px; font-family: inherit; font-size: 13px; cursor: pointer;
}
.btn-ghost:hover { color: var(--text); border-color: var(--cyan); }

.stage { position: relative; z-index: 1; padding: 30px; display: flex; flex-direction: column; gap: 18px; height: 100vh; }
.player-wrap {
  position: relative; flex: 1; border-radius: 16px; overflow: hidden;
  background: #000; border: 1px solid var(--line); box-shadow: 0 30px 80px rgba(0,0,0,.6);
}
video {
  width: 100%; height: 100%; object-fit: contain; background: #000;
  display: block; cursor: pointer;
}
.player-overlay {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 14px; color: var(--muted);
  background: radial-gradient(circle at center, var(--panel-2), var(--bg));
  z-index: 2;
}
.player-overlay.hidden { display: none; }
.overlay-logo {
  font-size: 54px; color: var(--cyan); animation: pulse 2.4s ease-in-out infinite; text-shadow: var(--glow);
}
@keyframes pulse { 0%,100% { opacity: .4; transform: scale(1); } 50% { opacity: 1; transform: scale(1.08); } }

/* ========= Custom Player Controls ========= */

.player-controls {
  position: absolute; bottom: 0; left: 0; right: 0; z-index: 4;
  background: linear-gradient(transparent, rgba(0,0,0,.88) 75%);
  padding: 52px 16px 14px;
  opacity: 0; transition: opacity .25s;
  pointer-events: none;
}
.player-controls.visible,
.player-wrap:hover .player-controls {
  opacity: 1; pointer-events: all;
}
#player-overlay:not(.hidden) ~ .player-controls {
  display: none !important;
}

.progress-wrap {
  width: 100%; height: 20px; display: flex; align-items: center;
  cursor: pointer; margin-bottom: 10px;
}
.progress-track {
  position: relative; width: 100%; height: 4px;
  background: rgba(255,255,255,.18); border-radius: 4px;
  transition: height .15s;
}
.progress-wrap:hover .progress-track { height: 6px; }
.progress-buf {
  position: absolute; left: 0; top: 0; height: 100%; width: 0;
  background: rgba(255,255,255,.25); border-radius: 4px; pointer-events: none;
}
.progress-fill {
  position: absolute; left: 0; top: 0; height: 100%; width: 0;
  background: var(--cyan); border-radius: 4px; pointer-events: none;
}
.progress-thumb {
  position: absolute; top: 50%; left: 0;
  transform: translate(-50%, -50%);
  width: 13px; height: 13px; border-radius: 50%;
  background: #fff; box-shadow: 0 0 10px rgba(45,226,230,.9);
  pointer-events: none; transition: width .1s, height .1s;
}
.progress-wrap:hover .progress-thumb { width: 16px; height: 16px; }

.ctrl-bar {
  display: flex; align-items: center; gap: 8px;
}
.ctrl-left { display: flex; align-items: center; gap: 6px; flex: 1; min-width: 0; }
.ctrl-right { display: flex; align-items: center; gap: 6px; flex-shrink: 0; }

.ctrl-btn {
  background: none; border: none; color: rgba(255,255,255,.9); cursor: pointer;
  font-size: 16px; padding: 4px 8px; border-radius: 6px; line-height: 1;
  transition: background .15s, color .15s; flex-shrink: 0;
}
.ctrl-btn:hover { background: rgba(255,255,255,.1); color: var(--cyan); }

.vol-group { display: flex; align-items: center; gap: 4px; }
.vol-slider {
  width: 72px; height: 4px; -webkit-appearance: none; appearance: none;
  background: rgba(255,255,255,.25); border-radius: 4px;
  outline: none; cursor: pointer;
}
.vol-slider::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 13px; height: 13px; border-radius: 50%;
  background: #fff; cursor: pointer;
}
.vol-slider::-moz-range-thumb {
  width: 13px; height: 13px; border-radius: 50%;
  background: #fff; cursor: pointer; border: none;
}

.ctrl-time {
  font-size: 12px; color: rgba(255,255,255,.7); white-space: nowrap;
  margin-left: 4px; font-variant-numeric: tabular-nums;
}

.live-badge {
  font-size: 11px; color: #ff4757; font-weight: 700; letter-spacing: 2px;
  padding: 2px 8px; border: 1px solid rgba(255,71,87,.5); border-radius: 4px;
  animation: blink 1.4s infinite; display: none; margin-left: 6px;
}

/* Fullscreen */
.player-wrap:fullscreen video,
.player-wrap:-webkit-full-screen video {
  width: 100vw; height: 100vh;
}

/* ======================================= */

.now-playing {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 16px 22px;
}
.now-playing h2 { font-family: 'Orbitron', sans-serif; font-size: 17px; letter-spacing: 1px; }
.now-playing p { color: var(--muted); font-size: 12px; margin-top: 3px; }
.status-dot { width: 12px; height: 12px; border-radius: 50%; }
.status-dot.off { background: var(--line); }
.status-dot.on { background: var(--cyan); box-shadow: var(--glow); animation: blink 1.4s infinite; }
@keyframes blink { 50% { opacity: .4; } }

.modal {
  position: fixed; inset: 0; z-index: 20; display: grid; place-items: center;
  background: rgba(3,5,10,.8); backdrop-filter: blur(6px);
}
.modal.hidden { display: none; }
.modal-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 16px;
  padding: 28px; width: 440px; max-width: 92vw;
}
.modal-card h3 { font-family: 'Orbitron', sans-serif; margin-bottom: 18px; letter-spacing: 1px; }
.modal-card label { display: block; font-size: 12px; color: var(--muted); margin: 14px 0 6px; }
.modal-card input, .modal-card textarea {
  width: 100%; background: var(--panel-2); border: 1px solid var(--line);
  color: var(--text); padding: 11px 13px; border-radius: 9px; font-family: inherit; outline: none;
}
.modal-card input:focus, .modal-card textarea:focus { border-color: var(--cyan); }
.modal-card .hint { font-size: 12px; color: var(--muted); margin-bottom: 8px; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 22px; }

.source-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin-bottom: 6px; }
.src-chip {
  background: var(--panel-2); border: 1px solid var(--line); color: var(--text);
  padding: 10px; border-radius: 9px; font-family: inherit; font-size: 13px;
  cursor: pointer; transition: all .18s; text-align: left;
}
.src-chip:hover { border-color: var(--cyan); transform: translateY(-2px); box-shadow: var(--glow); }
.src-chip:disabled { opacity: .5; cursor: wait; }

.channel .logo-img {
  width: 34px; height: 34px; flex-shrink: 0; border-radius: 8px;
  object-fit: contain; background: #fff1;
}

@media (max-width: 860px) {
  body { grid-template-columns: 1fr; }
  .sidebar { height: auto; max-height: 45vh; }
  .stage { height: auto; }
}