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

:root {
  --bg: #0A0A0A;
  --surface: #111111;
  --surface2: #1A1A1A;
  --border: #222222;
  --border2: #333333;
  --text-primary: #FFFFFF;
  --text-secondary: #777777;
  --text-muted: #444444;
  --gold: #C9A962;
  --on-gold: #0A0A0A;
  --font-heading: 'Space Grotesk', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --danger: #e05252;
}

html, body { height: 100%; background: var(--bg); color: var(--text-primary); font-family: var(--font-heading); overflow: hidden; }

/* ──────────────────── LOGIN ──────────────────── */
#login-screen {
  position: fixed; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg);
  z-index: 100;
}

.login-card {
  width: 400px;
  background: var(--surface);
  border: 1px solid var(--border2);
}

.login-logo {
  display: flex; align-items: center; gap: 12px;
  padding: 28px 32px 20px;
  border-bottom: 1px solid var(--border);
}

.login-logo svg { color: var(--gold); flex-shrink: 0; }

.login-logo-text {
  font-size: 18px; font-weight: 700; letter-spacing: 2px;
}

.login-body { padding: 32px; display: flex; flex-direction: column; gap: 20px; }

.login-title { font-size: 26px; font-weight: 700; }

.login-subtitle {
  font-family: var(--font-mono); font-size: 12px;
  color: var(--text-secondary); margin-top: -12px;
}

.field { display: flex; flex-direction: column; gap: 6px; }

.field label {
  font-family: var(--font-mono); font-size: 10px; font-weight: 600;
  letter-spacing: 1px; text-transform: uppercase; color: var(--text-secondary);
}

.field input {
  width: 100%; height: 44px;
  background: var(--bg); border: 1px solid var(--border2);
  padding: 0 14px;
  font-family: var(--font-mono); font-size: 13px; color: var(--text-primary);
  outline: none; transition: border-color 0.15s;
}

.field input::placeholder { color: var(--text-muted); }
.field input:focus { border-color: var(--gold); }
.field input.error { border-color: var(--danger); }

.login-error {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--danger); display: none; margin-top: -8px;
}

.login-btn {
  width: 100%; height: 48px; background: var(--gold); border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12px; font-weight: 600;
  letter-spacing: 1px; text-transform: uppercase; color: var(--on-gold);
  transition: opacity 0.15s;
}

.login-btn:hover { opacity: 0.9; }
.login-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.login-footer {
  font-family: var(--font-mono); font-size: 10px;
  color: var(--text-muted); text-align: center;
}

/* ──────────────────── APP ──────────────────── */
#app { display: none; height: 100vh; flex-direction: row; }

/* Sidebar */
.sidebar {
  width: 72px; background: var(--gold);
  display: flex; flex-direction: column; align-items: center;
  padding: 28px 0; justify-content: space-between; flex-shrink: 0;
}

.sidebar-top { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.sidebar-logo { color: var(--on-gold); margin-bottom: 20px; }

.nav-btn {
  width: 48px; height: 48px; background: transparent; border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: var(--on-gold); border-radius: 8px; transition: background 0.15s;
}

.nav-btn:hover { background: rgba(0,0,0,0.1); }
.nav-btn.active { background: var(--on-gold); color: var(--gold); }
.sidebar-bottom { color: var(--on-gold); }

/* Channel list */
.channel-list {
  width: 280px; background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; flex-shrink: 0;
  transition: transform 0.2s;
}

.channel-header {
  padding: 20px 16px 16px;
  display: flex; flex-direction: column; gap: 12px;
  border-bottom: 1px solid var(--border);
}

.channel-header-top {
  display: flex; align-items: center; justify-content: space-between;
}

.channel-header-title {
  font-family: var(--font-mono); font-size: 10px; font-weight: 600;
  letter-spacing: 1px; text-transform: uppercase; color: var(--text-secondary);
}

.search-box {
  display: flex; align-items: center; gap: 8px; height: 36px;
  background: var(--bg); border: 1px solid var(--border2); padding: 0 12px;
}

.search-box svg { color: var(--text-muted); flex-shrink: 0; }

.search-box input {
  flex: 1; background: none; border: none; outline: none;
  font-family: var(--font-mono); font-size: 12px; color: var(--text-primary);
}

.search-box input::placeholder { color: var(--text-muted); }

.group-filter {
  display: flex; gap: 6px; flex-wrap: wrap;
}

.group-chip {
  font-family: var(--font-mono); font-size: 10px; font-weight: 600;
  letter-spacing: 0.5px; text-transform: uppercase;
  padding: 4px 10px; border: 1px solid var(--border2);
  background: transparent; color: var(--text-secondary); cursor: pointer;
  transition: all 0.1s; white-space: nowrap;
}

.group-chip:hover { border-color: var(--gold); color: var(--gold); }
.group-chip.active { background: var(--gold); color: var(--on-gold); border-color: var(--gold); }

.channel-items { flex: 1; overflow-y: auto; }
.channel-items::-webkit-scrollbar { width: 4px; }
.channel-items::-webkit-scrollbar-track { background: transparent; }
.channel-items::-webkit-scrollbar-thumb { background: var(--border2); }

.channel-item {
  display: flex; align-items: center; gap: 12px; padding: 12px 16px;
  cursor: pointer; border-left: 2px solid transparent;
  transition: background 0.1s, border-color 0.1s;
}

.channel-item:hover { background: var(--surface2); }

.channel-item.active {
  background: var(--surface2); border-left-color: var(--gold);
}

.channel-num {
  font-family: var(--font-mono); font-size: 10px; font-weight: 600;
  color: var(--text-muted); width: 20px; flex-shrink: 0;
}

.channel-item.active .channel-num { color: var(--gold); }

.channel-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--border2); flex-shrink: 0;
}

.channel-item.active .channel-dot { background: var(--gold); }

.channel-logo {
  width: 24px; height: 24px; object-fit: contain; flex-shrink: 0;
  opacity: 0.8;
}

.channel-name {
  font-family: var(--font-heading); font-size: 14px; font-weight: 600;
  color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  flex: 1;
}

.channel-item.active .channel-name { color: var(--text-primary); }

.channel-empty {
  padding: 40px 16px; text-align: center;
  font-family: var(--font-mono); font-size: 12px; color: var(--text-muted);
}

/* Player */
.player-area { flex: 1; display: flex; flex-direction: column; background: var(--bg); overflow: hidden; }

.player-topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px; flex-shrink: 0;
}

.now-playing { display: flex; flex-direction: column; gap: 4px; }

.now-playing-label {
  font-family: var(--font-mono); font-size: 10px; font-weight: 600;
  letter-spacing: 2px; text-transform: uppercase; color: var(--gold);
}

.now-playing-channel {
  font-size: 20px; font-weight: 700; color: var(--text-primary);
}

.live-badge {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 12px; background: var(--gold);
}

.live-badge-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--on-gold); animation: pulse 1.5s infinite;
}

@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

.live-badge-text {
  font-family: var(--font-mono); font-size: 10px; font-weight: 600;
  letter-spacing: 1px; text-transform: uppercase; color: var(--on-gold);
}

.video-wrapper { flex: 1; position: relative; background: #050505; overflow: hidden; }

#player { width: 100%; height: 100%; object-fit: contain; display: block; }

.video-overlay {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 16px;
}

.spinner {
  width: 44px; height: 44px;
  border: 2px solid var(--border2); border-top-color: var(--gold);
  border-radius: 50%; animation: spin 0.8s linear infinite;
}

.overlay-msg {
  font-family: var(--font-mono); font-size: 12px; color: var(--text-secondary);
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Controls */
.player-controls { background: var(--surface); flex-shrink: 0; }

.progress-bar { width: 100%; height: 3px; background: var(--border); cursor: pointer; }
.progress-fill { height: 100%; background: var(--gold); width: 0%; transition: width 0.5s linear; }

.controls-row {
  display: flex; align-items: center; justify-content: space-between; padding: 14px 20px;
}

.controls-left, .controls-right { display: flex; align-items: center; gap: 16px; }

.ctrl-btn {
  background: none; border: none; cursor: pointer;
  color: var(--text-secondary); padding: 4px; transition: color 0.15s;
  display: flex; align-items: center; justify-content: center;
}

.ctrl-btn:hover { color: var(--text-primary); }
.ctrl-btn.primary { color: var(--text-primary); }

.ctrl-time { font-family: var(--font-mono); font-size: 11px; color: var(--text-muted); }

.volume-slider {
  width: 80px; height: 3px; -webkit-appearance: none;
  background: var(--border2); cursor: pointer; accent-color: var(--gold);
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none; width: 12px; height: 12px;
  border-radius: 50%; background: var(--gold);
}

/* ──────────────────── SETTINGS PANEL ──────────────────── */
.panel-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.7);
  z-index: 50; display: none; align-items: center; justify-content: center;
}

.panel-overlay.open { display: flex; }

.panel {
  width: 520px; max-height: 80vh; background: var(--surface);
  border: 1px solid var(--border2);
  display: flex; flex-direction: column;
}

.panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px; border-bottom: 1px solid var(--border);
}

.panel-title { font-size: 16px; font-weight: 700; }

.panel-close {
  background: none; border: none; cursor: pointer;
  color: var(--text-secondary); transition: color 0.15s;
  display: flex; align-items: center;
}

.panel-close:hover { color: var(--text-primary); }

.panel-body { padding: 24px; overflow-y: auto; display: flex; flex-direction: column; gap: 24px; }

.panel-section-title {
  font-family: var(--font-mono); font-size: 10px; font-weight: 600;
  letter-spacing: 1px; text-transform: uppercase; color: var(--text-secondary);
  margin-bottom: 12px;
}

.add-playlist-form { display: flex; flex-direction: column; gap: 12px; }

.add-playlist-form .field input { height: 40px; }

.add-playlist-actions { display: flex; gap: 8px; }

.btn-gold {
  height: 40px; padding: 0 20px; background: var(--gold); border: none; cursor: pointer;
  font-family: var(--font-mono); font-size: 11px; font-weight: 600;
  letter-spacing: 1px; text-transform: uppercase; color: var(--on-gold);
  transition: opacity 0.15s; white-space: nowrap;
}

.btn-gold:hover { opacity: 0.9; }
.btn-gold:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-outline {
  height: 40px; padding: 0 16px; background: transparent;
  border: 1px solid var(--border2); cursor: pointer;
  font-family: var(--font-mono); font-size: 11px; font-weight: 600;
  letter-spacing: 1px; text-transform: uppercase; color: var(--text-secondary);
  transition: border-color 0.15s, color 0.15s;
}

.btn-outline:hover { border-color: var(--text-primary); color: var(--text-primary); }

.playlist-list { display: flex; flex-direction: column; gap: 8px; }

.playlist-item {
  display: flex; align-items: center; gap: 12px; padding: 12px 16px;
  background: var(--surface2); border: 1px solid var(--border);
}

.playlist-info { flex: 1; min-width: 0; }

.playlist-name { font-size: 14px; font-weight: 600; color: var(--text-primary); }

.playlist-meta {
  font-family: var(--font-mono); font-size: 10px; color: var(--text-muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  margin-top: 2px;
}

.playlist-actions { display: flex; gap: 6px; }

.btn-icon {
  width: 32px; height: 32px; background: none; border: 1px solid var(--border2);
  cursor: pointer; color: var(--text-secondary);
  display: flex; align-items: center; justify-content: center;
  transition: all 0.15s;
}

.btn-icon:hover { border-color: var(--gold); color: var(--gold); }
.btn-icon.danger:hover { border-color: var(--danger); color: var(--danger); }
.btn-icon:disabled { opacity: 0.4; cursor: not-allowed; }

.panel-msg {
  font-family: var(--font-mono); font-size: 11px;
  padding: 8px 12px; display: none;
}

.panel-msg.success { background: rgba(100,200,100,0.1); color: #6dc86d; }
.panel-msg.error { background: rgba(220,80,80,0.1); color: var(--danger); }

/* Settings tabs */
.settings-tabs {
  display: flex; border-bottom: 1px solid var(--border);
}

.settings-tab {
  flex: 1; padding: 12px 16px; background: none; border: none; cursor: pointer;
  font-family: var(--font-mono); font-size: 11px; font-weight: 600;
  letter-spacing: 0.5px; text-transform: uppercase;
  color: var(--text-secondary); border-bottom: 2px solid transparent;
  margin-bottom: -1px; transition: color 0.15s, border-color 0.15s;
}

.settings-tab:hover { color: var(--text-primary); }
.settings-tab.active { color: var(--gold); border-bottom-color: var(--gold); }

.settings-section { display: flex; flex-direction: column; gap: 24px; }
.settings-section.hidden { display: none; }

/* Select field */
.field-select {
  width: 100%; height: 40px;
  background: var(--bg); border: 1px solid var(--border2);
  padding: 0 14px;
  font-family: var(--font-mono); font-size: 13px; color: var(--text-primary);
  outline: none; cursor: pointer; transition: border-color 0.15s;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%23777'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
}

.field-select:focus { border-color: var(--gold); }
.field-select option { background: var(--surface); }

/* Stream type badge */
.stream-type-badge {
  font-family: var(--font-mono); font-size: 9px; font-weight: 600;
  letter-spacing: 0.5px; padding: 2px 6px; text-transform: uppercase;
  flex-shrink: 0; border: 1px solid;
}

.type-hls   { color: var(--gold); border-color: var(--gold); }
.type-direct { color: #6dc86d; border-color: #6dc86d; }
.type-mp4   { color: #6ab0e0; border-color: #6ab0e0; }
.type-dash  { color: #b06ae0; border-color: #b06ae0; }