/* =========================================================================
   Auto-Tune AI Pro 5.0 (Tune AI 5.0) — Full-Featured Web Application Styles
   Brand: Chất Lượng Tốt.net • CLT Audio Studio
   Design System: Angular.dev Neon Glass (#F637E3 -> #8514F5 -> #05CAFF)
   ========================================================================= */

:root {
  --bg-deep: #070B14;
  --bg-panel: #0E1525;
  --bg-card: #121B2E;
  --bg-card-hover: #17233B;
  --bg-input: #0A101D;
  --border: #1E2D4A;
  --border-bright: #2E446E;
  --text-main: #F8FAFC;
  --text-sub: #94A3B8;
  --text-muted: #64748B;
  --ang-rose: #F637E3;
  --ang-pink: #FF2E93;
  --ang-violet: #8514F5;
  --ang-cyan: #05CAFF;
  --ang-sky: #38BDF8;
  --ang-mint: #2DD4BF;
  --ang-emerald: #10B981;
  --ang-amber: #F59E0B;
  --ang-red: #F43F5E;
  --ang-grad: linear-gradient(135deg, #F637E3 0%, #8514F5 50%, #05CAFF 100%);
  --mint-grad: linear-gradient(135deg, #10B981 0%, #2DD4BF 50%, #05CAFF 100%);
  --shadow-lg: 0 14px 36px rgba(0, 0, 0, 0.55);
  --radius-lg: 14px;
  --radius-md: 10px;
  --radius-sm: 7px;
}

/* 10 Angular Studio Themes */
body[data-theme="angular_neon"] {
  --bg-deep: #090514; --bg-panel: #120B24; --bg-card: #191030; --border: #351E63;
}
body[data-theme="cyber_cyan"] {
  --bg-deep: #041016; --bg-panel: #081C26; --bg-card: #0D2633; --border: #16485E;
}
body[data-theme="emerald_live"] {
  --bg-deep: #04120E; --bg-panel: #081F18; --bg-card: #0D2B22; --border: #174E3E;
}
body[data-theme="sunset_gold"] {
  --bg-deep: #140B06; --bg-panel: #21130B; --bg-card: #2C1A10; --border: #54321D;
}
body[data-theme="royal_amethyst"] {
  --bg-deep: #0D0719; --bg-panel: #160D2B; --bg-card: #1F133B; --border: #3D2670;
}
body[data-theme="crimson_stage"] {
  --bg-deep: #14060B; --bg-panel: #220B13; --bg-card: #2E101B; --border: #591E34;
}
body[data-theme="oceanic_deep"] {
  --bg-deep: #050D1A; --bg-panel: #0A182E; --bg-card: #102240; --border: #1E3E70;
}
body[data-theme="sakura_pro"] {
  --bg-deep: #130814; --bg-panel: #200F22; --bg-card: #2B152E; --border: #56285C;
}
body[data-theme="light_studio"] {
  --bg-deep: #F1F5F9; --bg-panel: #FFFFFF; --bg-card: #F8FAFC; --bg-card-hover: #E2E8F0;
  --bg-input: #F1F5F9; --border: #CBD5E1; --border-bright: #94A3B8;
  --text-main: #0F172A; --text-sub: #334155; --text-muted: #64748B;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-font-smoothing: antialiased;
}

html, body {
  width: 100%;
  height: 100%;
  background: var(--bg-deep);
  color: var(--text-main);
  font-family: 'Segoe UI', Inter, system-ui, -apple-system, sans-serif;
  font-size: 13px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Custom Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: rgba(10, 16, 29, 0.5); }
::-webkit-scrollbar-thumb { background: #293B5F; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--ang-sky); }

/* =========================================================================
   1. HEADER NAVIGATION BAR
   ========================================================================= */
.top-header {
  height: 54px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 14px;
  gap: 8px;
  flex-shrink: 0;
  position: relative;
  z-index: 20;
}
.top-header::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2.5px;
  background: var(--ang-grad);
}

.brand-box {
  display: flex;
  align-items: center;
  gap: 9px;
  cursor: pointer;
  margin-right: 4px;
}
.clt-shield {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--ang-grad);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 11px;
  color: #FFF;
  box-shadow: 0 0 14px rgba(133, 20, 245, 0.55);
  border: 1.5px solid rgba(255,255,255,0.35);
}
.brand-text-wrap {
  display: flex;
  flex-direction: column;
}
.brand-top {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 900;
  font-size: 13.5px;
  letter-spacing: -0.2px;
}
.ai-badge {
  background: var(--ang-grad);
  color: #FFF;
  font-size: 9.5px;
  font-weight: 900;
  padding: 1px 6px;
  border-radius: 5px;
}
.brand-sub {
  font-size: 9.5px;
  color: var(--ang-mint);
  font-weight: 700;
}

.ver-pill {
  background: rgba(148, 163, 184, 0.12);
  color: var(--text-sub);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 8px;
  font-size: 11px;
  font-weight: 800;
  cursor: pointer;
}
.ver-pill:hover { border-color: var(--ang-sky); color: var(--text-main); }

.nav-tabs {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-left: 6px;
}
.nav-tab {
  background: rgba(18, 27, 46, 0.75);
  color: var(--text-sub);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
}
.nav-tab:hover {
  border-color: var(--border-bright);
  color: var(--text-main);
  background: var(--bg-card-hover);
}
.nav-tab.active {
  background: linear-gradient(135deg, rgba(246,55,227,0.18), rgba(133,20,245,0.24), rgba(5,202,255,0.22));
  color: #FFFFFF;
  border: 1.5px solid var(--ang-sky);
  box-shadow: 0 0 14px rgba(5, 202, 255, 0.25);
}

.hdr-spacer { flex: 1; }

.hdr-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}
.hdr-btn {
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 11px;
  font-size: 11.5px;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: all 0.15s;
}
.hdr-btn:hover {
  border-color: var(--ang-sky);
  background: var(--bg-card-hover);
}
.hdr-btn.apk-pill {
  background: linear-gradient(90deg, rgba(246,55,227,0.2), rgba(133,20,245,0.22), rgba(5,202,255,0.2));
  border-color: var(--ang-sky);
}
.hdr-btn.mic-live-pill {
  background: rgba(16, 185, 129, 0.16);
  color: #34D399;
  border-color: #10B981;
}
.hdr-btn.mic-live-pill.off {
  background: rgba(244, 63, 94, 0.14);
  color: #FDA4AF;
  border-color: #F43F5E;
}
.hdr-btn.plan-pill {
  background: rgba(16, 185, 129, 0.18);
  color: #34D399;
  border: 1.2px solid #10B981;
  font-weight: 900;
}

/* =========================================================================
   2. WORKSPACE STACK & TAB PANES
   ========================================================================= */
.workspace-body {
  flex: 1;
  overflow-y: auto;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
}
.tab-view {
  display: none;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}
.tab-view.active {
  display: flex;
}

/* Warning Monitor Banner */
.monitor-banner {
  background: rgba(245, 158, 11, 0.09);
  border: 1px solid rgba(245, 158, 11, 0.45);
  border-radius: 10px;
  padding: 7px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.monitor-banner-left {
  color: #FBBF24;
  font-weight: 800;
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.monitor-banner-right {
  display: flex;
  align-items: center;
  gap: 8px;
}
.btn-amber {
  background: #F59E0B;
  color: #090D16;
  border: none;
  border-radius: 7px;
  padding: 5px 12px;
  font-weight: 900;
  font-size: 11.5px;
  cursor: pointer;
}
.btn-ghost {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 5px 10px;
  font-weight: 700;
  font-size: 11.5px;
  cursor: pointer;
}

/* Top 3 Control Strips: Preset | Tone Bài Hát | Tone Nhạc */
.top-strip-grid {
  display: grid;
  grid-template-columns: 1.1fr 1.6fr 1.1fr;
  gap: 10px;
}
.strip-box {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 11px;
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.strip-lbl {
  font-size: 11px;
  font-weight: 800;
  color: var(--ang-sky);
  display: flex;
  align-items: center;
  gap: 5px;
}
.strip-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}
.studio-select {
  background: var(--bg-input);
  color: var(--text-main);
  border: 1px solid var(--border-bright);
  border-radius: 7px;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 800;
  flex: 1;
  outline: none;
}
.studio-select:focus { border-color: var(--ang-sky); }

.pill-btn {
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-bright);
  border-radius: 7px;
  padding: 6px 10px;
  font-size: 11.5px;
  font-weight: 800;
  cursor: pointer;
  white-space: nowrap;
}
.pill-btn:hover { border-color: var(--ang-sky); background: var(--bg-card-hover); }
.pill-btn.active, .pk-filter-pill.active {
  background: rgba(45, 212, 191, 0.22);
  color: #2DD4BF;
  border-color: #2DD4BF;
  font-weight: 800;
}
.pill-btn.ai-glow {
  background: linear-gradient(135deg, rgba(245,158,11,0.2), rgba(246,55,227,0.2));
  border-color: var(--ang-amber);
  color: #FDE68A;
}

/* 6 Macro Toggle Cards */
.macro-grid-6 {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
}
.macro-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 12px 13px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 145px;
  cursor: pointer;
  position: relative;
  transition: all 0.16s ease;
}
.macro-card:hover { transform: translateY(-1px); }
.macro-card.mc-cyan.on { border-color: #05CAFF; background: linear-gradient(180deg, rgba(5,202,255,0.12), rgba(14,21,37,0.92)); }
.macro-card.mc-mint.on { border-color: #10B981; background: linear-gradient(180deg, rgba(16,185,129,0.14), rgba(14,21,37,0.92)); }
.macro-card.mc-amber.on { border-color: #F59E0B; background: linear-gradient(180deg, rgba(245,158,11,0.14), rgba(14,21,37,0.92)); }
.macro-card.mc-violet.on { border-color: #A855F7; background: linear-gradient(180deg, rgba(168,85,247,0.16), rgba(14,21,37,0.92)); }
.macro-card.mc-lime.on { border-color: #84CC16; background: linear-gradient(180deg, rgba(132,204,22,0.14), rgba(14,21,37,0.92)); }
.macro-card.mc-rose.on { border-color: #F43F5E; background: linear-gradient(180deg, rgba(244,63,94,0.14), rgba(14,21,37,0.92)); }

.mc-hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 900;
  font-size: 13.5px;
}
.mc-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #475569;
}
.macro-card.on .mc-dot { background: currentColor; box-shadow: 0 0 8px currentColor; }

.mc-icon-box {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}
.mc-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11.5px;
}
.mc-val { font-weight: 900; font-size: 12.5px; }
.mc-hk { color: var(--text-muted); font-size: 10.5px; font-weight: 700; }
.mc-slider {
  width: 100%;
  margin-top: 6px;
  accent-color: var(--ang-sky);
  height: 4px;
  cursor: pointer;
}

/* 9-Knob Studio Rack + Dual VU Meters */
.rack-9-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.knob-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  flex: 1;
}
.knob-lbl {
  font-size: 11.5px;
  font-weight: 800;
  color: var(--text-sub);
}
.knob-svg-wrap {
  width: 82px;
  height: 82px;
  position: relative;
  cursor: ns-resize;
}
.knob-val-pill {
  font-size: 11px;
  font-weight: 900;
  padding: 3px 10px;
  border-radius: 6px;
  border: 1px solid var(--border-bright);
  background: rgba(10, 16, 29, 0.7);
  min-width: 58px;
  text-align: center;
}

.vu-column {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 0 6px;
}
.vu-title {
  font-size: 10px;
  font-weight: 900;
  color: var(--text-muted);
}
.vu-pair {
  display: flex;
  gap: 4px;
  height: 92px;
  background: #060911;
  padding: 4px;
  border-radius: 6px;
  border: 1px solid var(--border);
}
.vu-bar-seg {
  width: 7px;
  height: 100%;
  display: flex;
  flex-direction: column-reverse;
  gap: 1.5px;
}
.vu-led {
  flex: 1;
  background: #162033;
  border-radius: 1px;
}
.vu-led.on-cyan { background: #05CAFF; box-shadow: 0 0 4px #05CAFF; }
.vu-led.on-mint { background: #2DD4BF; box-shadow: 0 0 4px #2DD4BF; }
.vu-led.on-amber { background: #F59E0B; box-shadow: 0 0 4px #F59E0B; }
.vu-led.on-red { background: #F43F5E; box-shadow: 0 0 5px #F43F5E; }

/* Voice Color / FX Row + Smart AI Row */
.voice-mode-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.vm-switch-col {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.vm-tab-btn {
  background: var(--bg-card);
  color: var(--text-sub);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 5px 10px;
  font-size: 11px;
  font-weight: 800;
  cursor: pointer;
  text-align: left;
}
.vm-tab-btn.active {
  border-color: var(--ang-sky);
  color: var(--ang-sky);
  background: rgba(5, 202, 255, 0.12);
}
.voice-cards-6 {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
}
.v-chip-card {
  background: var(--bg-card);
  border: 1.2px solid var(--border);
  border-radius: 9px;
  padding: 11px 10px;
  text-align: center;
  font-weight: 800;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s;
}
.v-chip-card:hover { border-color: var(--border-bright); background: var(--bg-card-hover); }
.v-chip-card.active {
  border-color: var(--ang-sky);
  background: rgba(5, 202, 255, 0.15);
  color: #FFF;
  box-shadow: 0 0 12px rgba(5, 202, 255, 0.2);
}

.smart-ai-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 7px 12px;
}
.smart-lbl {
  font-weight: 900;
  font-size: 11.5px;
  color: var(--ang-mint);
  margin-right: 4px;
}
.smart-pill {
  background: var(--bg-card);
  color: var(--text-sub);
  border: 1.2px solid var(--border);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 11.5px;
  font-weight: 800;
  cursor: pointer;
}
.smart-pill.on {
  border-color: var(--ang-violet);
  background: rgba(133, 20, 245, 0.2);
  color: #FFF;
}

/* Bottom Color-Grouped Action Dock */
.bottom-dock {
  display: flex;
  align-items: center;
  gap: 7px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 7px 12px;
}
.dock-btn {
  background: var(--bg-card);
  color: var(--text-main);
  border: 1.2px solid var(--border);
  border-radius: 8px;
  padding: 7px 12px;
  font-size: 11.5px;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
}
.dock-btn.rec { border-color: #F43F5E; color: #FDA4AF; }
.dock-btn.rec.recording { background: #E11D48; color: #FFF; box-shadow: 0 0 12px rgba(225,29,72,0.5); }
.dock-btn.mint { border-color: #10B981; color: #6EE7B7; }
.dock-btn.amber { border-color: #F59E0B; color: #FDE68A; }
.dock-btn.violet { border-color: #A855F7; color: #E9D5FF; }
.dock-btn:hover { filter: brightness(1.15); transform: translateY(-1px); }

/* =========================================================================
   3. TAB 2: CLASSIC 5.0 (4 MASTER KNOBS + RECORDING MANAGER)
   ========================================================================= */
.classic-4knob-hero {
  background: #141B24;
  border: 1.5px solid #263345;
  border-radius: 14px;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.classic-knob-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  flex: 1;
}
.classic-knob-title {
  font-size: 18px;
  font-weight: 900;
  color: #CBD5E1;
}
.classic-pwr-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid #05CAFF;
  color: #05CAFF;
  background: transparent;
  font-weight: 900;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.classic-pwr-btn.amber { border-color: #F59E0B; color: #F59E0B; }
.classic-pwr-btn.off { border-color: #475569; color: #475569; }
.classic-step-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.classic-step-btn {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  background: #1C2636;
  border: 1px solid #2E3E56;
  color: #94A3B8;
  font-size: 15px;
  font-weight: 900;
  cursor: pointer;
}
.classic-step-val {
  font-size: 16px;
  font-weight: 900;
  min-width: 70px;
  text-align: center;
}

/* =========================================================================
   4. TAB 3: HÁT KARAOKE (YOUTUBE 0% QC + FULL SUB PREP)
   ========================================================================= */
.karaoke-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 12px;
  flex: 1;
  min-height: 560px;
  align-items: start;
}
.karaoke-left-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  flex: 1;
}
.karaoke-stage-card {
  position: relative;
  background: #050811;
  border: 1.5px solid var(--border-bright);
  border-radius: 12px;
  overflow: hidden;
  min-height: 400px;
  aspect-ratio: 16 / 9;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.karaoke-video-el, .karaoke-bg-thumb {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}
.karaoke-bg-thumb {
  filter: brightness(0.68) contrast(1.08);
}
.stage-top-hud {
  position: relative;
  z-index: 3;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(180deg, rgba(5,8,17,0.86) 0%, transparent 100%);
}
.ad-shield-badge {
  background: rgba(16, 185, 129, 0.22);
  color: #34D399;
  border: 1px solid #10B981;
  border-radius: 99px;
  padding: 4px 12px;
  font-size: 11px;
  font-weight: 900;
}
.stage-bottom-sub-overlay {
  position: relative;
  z-index: 3;
  margin: 0 14px 12px 14px;
  background: rgba(7, 11, 20, 0.88);
  border: 1.5px solid rgba(45, 212, 191, 0.55);
  border-radius: 12px;
  padding: 10px 16px;
  text-align: center;
  backdrop-filter: blur(8px);
}
.sub-countdown-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  font-weight: 900;
  margin-bottom: 4px;
}
.beat-dots {
  display: flex;
  align-items: center;
  gap: 5px;
}
.b-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #334155;
}
.b-dot.lit { background: #FBBF24; box-shadow: 0 0 8px #FBBF24; }
.sub-line-active {
  font-size: 19px;
  font-weight: 900;
  color: #FDE047;
  text-shadow: 0 2px 8px rgba(0,0,0,0.95);
  margin: 3px 0;
}
.sub-line-next {
  font-size: 13px;
  font-weight: 700;
  color: #94A3B8;
}

/* Full Karaoke Sub Prep Panel */
.sub-prep-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  height: 205px;
}
.sub-prep-list {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.sub-cue-item {
  display: grid;
  grid-template-columns: 46px 76px 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  cursor: pointer;
  font-size: 12px;
}
.sub-cue-item:hover { border-color: var(--ang-sky); }
.sub-cue-item.current {
  background: rgba(16, 185, 129, 0.16);
  border-color: #2DD4BF;
  color: #FEF08A;
  font-weight: 800;
}
.cue-time { color: var(--ang-sky); font-family: monospace; font-weight: 800; }
.cue-sec-tag {
  font-size: 10px;
  font-weight: 900;
  padding: 2px 6px;
  border-radius: 5px;
  text-align: center;
  background: rgba(56, 189, 248, 0.15);
  color: #38BDF8;
}

/* =========================================================================
   SUBTITLE TOGGLE CONTROLS & RESTORE PILLS
   ========================================================================= */
.sub-mini-close-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #94A3B8;
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 10px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.18s ease;
}
.sub-mini-close-btn:hover {
  background: rgba(239, 68, 68, 0.28);
  border-color: #EF4444;
  color: #FCA5A5;
}

.stage-sub-restore-pill {
  position: absolute;
  top: 54px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  background: rgba(11, 19, 36, 0.94);
  border: 1.5px solid #2DD4BF;
  color: #5EEAD4;
  border-radius: 99px;
  padding: 6px 18px;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.75), 0 0 16px rgba(45, 212, 191, 0.45);
  backdrop-filter: blur(8px);
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.stage-sub-restore-pill:hover {
  background: rgba(45, 212, 191, 0.25);
  color: #FFFFFF;
  border-color: #5EEAD4;
  transform: translateX(-50%) scale(1.04);
}

.floating-cc-btn {
  position: absolute;
  top: 48px;
  right: 14px;
  z-index: 5;
  background: rgba(11, 19, 36, 0.88);
  border: 1.5px solid #334155;
  color: #94A3B8;
  border-radius: 6px;
  padding: 3px 9px;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.5px;
  cursor: pointer;
  backdrop-filter: blur(6px);
  transition: all 0.18s ease;
}
.floating-cc-btn:hover {
  border-color: #2DD4BF;
  color: #2DD4BF;
  transform: scale(1.06);
}
.floating-cc-btn.active {
  background: rgba(45, 212, 191, 0.22);
  border-color: #2DD4BF;
  color: #2DD4BF;
  box-shadow: 0 0 10px rgba(45, 212, 191, 0.45);
}

.floating-fullscreen-btn {
  position: absolute;
  top: 48px;
  right: 54px;
  z-index: 5;
  background: rgba(11, 19, 36, 0.88);
  border: 1.5px solid #334155;
  color: #38BDF8;
  border-radius: 6px;
  padding: 3px 9px;
  font-size: 12px;
  font-weight: 900;
  cursor: pointer;
  backdrop-filter: blur(6px);
  transition: all 0.18s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.floating-fullscreen-btn:hover {
  border-color: #38BDF8;
  color: #FFFFFF;
  background: rgba(56, 189, 248, 0.25);
  transform: scale(1.08);
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.45);
}

.fullscreen-exit-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 9999999;
  background: rgba(239, 68, 68, 0.92);
  border: 1.5px solid #F87171;
  color: #FFFFFF;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.6), 0 0 15px rgba(239, 68, 68, 0.5);
  transition: all 0.18s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.fullscreen-exit-btn:hover {
  background: #DC2626;
  transform: scale(1.05);
}

/* =====================================================================
   FULLSCREEN STYLES (DESKTOP, TABLET, IPAD, ANDROID, IPHONE)
   ===================================================================== */
.karaoke-stage-card:fullscreen,
.karaoke-stage-card:-webkit-full-screen,
.karaoke-stage-card:-moz-full-screen,
.karaoke-stage-card:-ms-fullscreen,
.karaoke-stage-card.is-fullscreen-fallback {
  position: fixed !important;
  inset: 0 !important;
  top: 0 !important;
  left: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  max-width: 100vw !important;
  max-height: 100vh !important;
  z-index: 999999 !important;
  border-radius: 0 !important;
  border: none !important;
  background: #000000 !important;
  margin: 0 !important;
  padding: 0 !important;
  overflow: hidden !important;
}

.karaoke-stage-card:fullscreen .karaoke-video-el,
.karaoke-stage-card:-webkit-full-screen .karaoke-video-el,
.karaoke-stage-card.is-fullscreen-fallback .karaoke-video-el,
.karaoke-stage-card:fullscreen .karaoke-bg-thumb,
.karaoke-stage-card:-webkit-full-screen .karaoke-bg-thumb,
.karaoke-stage-card.is-fullscreen-fallback .karaoke-bg-thumb {
  width: 100vw !important;
  height: 100vh !important;
  object-fit: contain !important;
  background: #000000 !important;
}

.karaoke-stage-card:fullscreen .stage-top-hud,
.karaoke-stage-card:-webkit-full-screen .stage-top-hud,
.karaoke-stage-card.is-fullscreen-fallback .stage-top-hud {
  padding: 16px 24px !important;
  background: linear-gradient(180deg, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0) 100%) !important;
}

.karaoke-stage-card:fullscreen .stage-bottom-sub-overlay,
.karaoke-stage-card:-webkit-full-screen .stage-bottom-sub-overlay,
.karaoke-stage-card.is-fullscreen-fallback .stage-bottom-sub-overlay {
  margin: 0 auto 30px auto !important;
  max-width: 92vw !important;
  width: 1100px !important;
  padding: 16px 28px !important;
  background: rgba(4, 7, 15, 0.90) !important;
  border: 2px solid rgba(45, 212, 191, 0.75) !important;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.9), 0 0 30px rgba(45, 212, 191, 0.35) !important;
}

.karaoke-stage-card:fullscreen .sub-line-active,
.karaoke-stage-card:-webkit-full-screen .sub-line-active,
.karaoke-stage-card.is-fullscreen-fallback .sub-line-active {
  font-size: clamp(22px, 3.8vw, 40px) !important;
  line-height: 1.4 !important;
  padding: 8px 0 !important;
  text-shadow: 0 2px 14px rgba(0,0,0,0.95), 0 0 25px rgba(246, 55, 227, 0.8) !important;
}

.karaoke-stage-card:fullscreen .sub-line-next,
.karaoke-stage-card:-webkit-full-screen .sub-line-next,
.karaoke-stage-card.is-fullscreen-fallback .sub-line-next {
  font-size: clamp(15px, 2.2vw, 24px) !important;
  line-height: 1.4 !important;
}

.karaoke-stage-card:fullscreen .stage-sub-restore-pill,
.karaoke-stage-card:-webkit-full-screen .stage-sub-restore-pill,
.karaoke-stage-card.is-fullscreen-fallback .stage-sub-restore-pill {
  top: 72px !important;
  font-size: 13.5px !important;
  padding: 8px 22px !important;
}

body.karaoke-fullscreen-active {
  overflow: hidden !important;
}

.sub-prep-collapsed-notice {
  background: rgba(15, 23, 42, 0.85);
  border: 1.5px dashed rgba(45, 212, 191, 0.6);
  border-radius: 10px;
  padding: 10px 14px;
  color: #2DD4BF;
  font-size: 12px;
  font-weight: 800;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
}
.sub-prep-collapsed-notice:hover {
  background: rgba(45, 212, 191, 0.16);
  border-style: solid;
  color: #FFFFFF;
}

/* Right Column: YouTube Karaoke Browser with 16:9 Thumbnails (Fixed 300px Wide) */
.karaoke-right-col {
  width: 300px;
  min-width: 300px;
  max-width: 300px;
  box-sizing: border-box;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow: hidden;
}
.yt-search-box {
  display: flex;
  align-items: center;
  gap: 5px;
  background: var(--bg-input);
  border: 1.5px solid var(--border-bright);
  border-radius: 8px;
  padding: 5px 8px;
}
.yt-search-box input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-main);
  font-size: 11.5px;
  font-weight: 700;
  min-width: 0;
}
.yt-song-list {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 520px;
  padding-right: 2px;
}
.yt-song-list.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.yt-card {
  display: flex;
  gap: 8px;
  padding: 6px 7px;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1.2px solid var(--border);
  cursor: pointer;
  align-items: center;
  transition: all 0.15s;
  overflow: hidden;
}
.yt-song-list.grid-2 .yt-card {
  flex-direction: column;
  align-items: stretch;
}
.yt-card:hover { border-color: var(--ang-sky); background: var(--bg-card-hover); }
.yt-card.active {
  border-color: var(--ang-mint);
  background: linear-gradient(90deg, rgba(16,185,129,0.16), rgba(5,202,255,0.1));
}
.yt-thumb-box {
  width: 90px;
  height: 52px;
  border-radius: 6px;
  overflow: hidden;
  position: relative;
  flex-shrink: 0;
  background: #050811;
  border: 1px solid #263859;
}
.yt-song-list.grid-2 .yt-thumb-box {
  width: 100%;
  height: 78px;
}
.yt-thumb-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.yt-dur-badge {
  position: absolute;
  bottom: 2px;
  right: 3px;
  background: rgba(0,0,0,0.85);
  color: #FFF;
  font-size: 9px;
  font-weight: 800;
  padding: 1px 4px;
  border-radius: 3px;
}
.yt-tone-tag {
  position: absolute;
  top: 2px;
  left: 3px;
  background: rgba(16,185,129,0.92);
  color: #04130E;
  font-size: 9px;
  font-weight: 900;
  padding: 1px 4px;
  border-radius: 3px;
}

/* =========================================================================
   5. TAB 4: 11-FADER MIXER & VST3 RACK
   ========================================================================= */
.mixer-11-strip {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  display: grid;
  grid-template-columns: repeat(11, 1fr);
  gap: 8px;
}
.fader-ch {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
}
.fader-vert-wrap {
  height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.fader-vert {
  writing-mode: vertical-lr;
  direction: rtl;
  height: 140px;
  accent-color: var(--ang-sky);
  cursor: pointer;
}

/* =========================================================================
   6. TAB 5: HIỆU ỨNG PK (63 SOUNDS + PROGRESS BAR)
   ========================================================================= */
.pk-pad-grid-6 {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
}
.pk-pad-card {
  background: #131B2A;
  border: 1.5px solid #23324D;
  border-radius: 11px;
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  min-height: 104px;
  transition: all 0.14s;
}
.pk-pad-card:hover {
  border-color: #F59E0B;
  transform: translateY(-1px);
}
.pk-pad-card.playing {
  background: rgba(245, 158, 11, 0.17);
  border-color: #F59E0B;
  box-shadow: 0 0 16px rgba(245, 158, 11, 0.32);
}
.pk-pad-ico {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1.8px solid #F59E0B;
  color: #FBBF24;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}
.pk-pad-name {
  font-size: 12px;
  font-weight: 900;
  color: #F8FAFC;
  text-align: center;
}
.pk-pad-hk {
  font-size: 10.5px;
  font-weight: 800;
  color: #F59E0B;
}
.pk-pad-prog {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 4px;
  background: #F59E0B;
  width: 0%;
  transition: width 0.08s linear;
}

/* =========================================================================
   7. ANGULAR DATA TABLES & MODALS
   ========================================================================= */
.ang-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.ang-table th {
  background: #131D31;
  color: var(--ang-sky);
  text-align: left;
  padding: 9px 12px;
  font-weight: 900;
  border-bottom: 1.5px solid var(--border-bright);
}
.ang-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text-main);
}
.ang-table tr:hover td { background: rgba(56, 189, 248, 0.06); }

/* Modal Backdrop & Dialogs */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(3, 6, 14, 0.78);
  backdrop-filter: blur(5px);
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-backdrop.open { display: flex; }
.modal-window {
  background: #0B101B;
  border: 1.5px solid #243554;
  border-radius: 16px;
  width: 100%;
  max-width: 980px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.modal-hdr {
  padding: 12px 18px;
  background: #0F1728;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-title {
  font-size: 14.5px;
  font-weight: 900;
  display: flex;
  align-items: center;
  gap: 8px;
}
.modal-close {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: #172238;
  border: 1px solid #2A3D60;
  color: #E2E8F0;
  font-weight: 900;
  cursor: pointer;
}
.modal-body {
  padding: 16px 18px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Piano 12 Keys */
.piano-12-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 5px;
}
.piano-k {
  height: 58px;
  border-radius: 7px;
  background: #16264C;
  border: 1.5px solid #29437A;
  color: #38BDF8;
  font-weight: 900;
  font-size: 11.5px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 7px;
  cursor: pointer;
}
.piano-k.sharp {
  background: #22B8CF;
  color: #04131A;
  border-color: #67E8F9;
  height: 44px;
}
.piano-k.off {
  opacity: 0.28;
  filter: grayscale(1);
}

/* Status Telemetry Footer */
.status-footer {
  height: 34px;
  background: var(--bg-panel);
  border-top: 1px solid var(--border);
  padding: 0 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11.5px;
  color: var(--text-sub);
  flex-shrink: 0;
}
.foot-pill {
  background: rgba(16, 185, 129, 0.14);
  border: 1px solid #10B981;
  color: #34D399;
  padding: 2px 10px;
  border-radius: 6px;
  font-weight: 800;
}

/* =========================================================================
   COLLAPSIBLE LEFT SIDEBAR & BOTTOM MEDIA TRANSPORT FOOTER BAR
   ========================================================================= */
.app-shell-row {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: row;
  overflow: hidden;
}

.left-sidebar {
  width: 242px;
  background: #0A1120;
  border-right: 1.5px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 8px;
  gap: 5px;
  overflow-y: auto;
  flex-shrink: 0;
  transition: width 0.18s ease;
}
.left-sidebar.collapsed {
  width: 58px;
  padding: 8px 5px;
}
.left-sidebar.collapsed .sb-text,
.left-sidebar.collapsed .sb-sec-title,
.left-sidebar.collapsed .sb-badge {
  display: none !important;
}
.left-sidebar.collapsed .sb-item,
.left-sidebar.collapsed .sb-link-item {
  justify-content: center;
  padding: 7px 4px;
}

.sb-toggle-btn {
  width: 100%;
  background: linear-gradient(90deg, rgba(5,202,255,0.22), rgba(133,20,245,0.22));
  color: #38BDF8;
  border: 1.3px solid #05CAFF;
  border-radius: 8px;
  padding: 7px 10px;
  font-weight: 900;
  font-size: 11.5px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.sb-toggle-btn:hover {
  background: rgba(5, 202, 255, 0.32);
  color: #FFFFFF;
}

.sb-sec-title {
  font-size: 10px;
  font-weight: 900;
  color: #64748B;
  letter-spacing: 0.5px;
  padding: 5px 4px 2px 4px;
  text-transform: uppercase;
}

.sb-item {
  width: 100%;
  background: #101A2E;
  color: #CBD5E1;
  border: 1px solid #1E2E4A;
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 11.5px;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  text-align: left;
}
.sb-item:hover {
  border-color: #38BDF8;
  color: #FFFFFF;
  background: #15233D;
}
.sb-item.active {
  background: rgba(5, 202, 255, 0.20);
  border-color: #05CAFF;
  color: #FFFFFF;
}
.sb-badge {
  margin-left: auto;
  font-size: 9.5px;
  padding: 1px 5px;
  border-radius: 4px;
  background: rgba(45, 212, 191, 0.18);
  color: #2DD4BF;
  border: 1px solid rgba(45, 212, 191, 0.45);
}

.sb-link-item {
  width: 100%;
  background: rgba(245, 158, 11, 0.12);
  color: #FBBF24;
  border: 1.2px solid #F59E0B;
  border-radius: 8px;
  padding: 6px 9px;
  font-size: 11px;
  font-weight: 900;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 7px;
  text-decoration: none;
}
.sb-link-item:hover {
  background: rgba(245, 158, 11, 0.26);
  color: #FFFFFF;
}

/* Kho Nhạc Theo Dòng Nhạc (Full) */
.sb-genre-item {
  padding: 5px 9px;
  font-size: 11px;
}
.sb-genre-item.active {
  background: linear-gradient(90deg, rgba(5, 202, 255, 0.22), rgba(133, 20, 245, 0.22)) !important;
  border-color: #05CAFF !important;
  color: #38BDF8 !important;
  box-shadow: 0 0 10px rgba(5, 202, 255, 0.25);
}

.kr-genre-pill-bar {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 4px 2px 8px 2px;
  margin-bottom: 6px;
  scrollbar-width: thin;
}
.kr-genre-pill-bar::-webkit-scrollbar {
  height: 4px;
}
.kr-genre-pill-bar::-webkit-scrollbar-thumb {
  background: #334155;
  border-radius: 4px;
}

.kr-genre-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: #0F172A;
  border: 1px solid #1E293B;
  color: #94A3B8;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 11.5px;
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}
.kr-genre-pill:hover {
  background: #1E293B;
  color: #F8FAFC;
  border-color: #38BDF8;
}
.kr-genre-pill.active {
  background: linear-gradient(135deg, rgba(5, 202, 255, 0.25), rgba(16, 185, 129, 0.25));
  border-color: #2DD4BF;
  color: #2DD4BF;
  box-shadow: 0 0 10px rgba(45, 212, 191, 0.3);
  font-weight: 800;
}

.genre-current-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(90deg, rgba(5, 202, 255, 0.12), rgba(133, 20, 245, 0.12));
  border: 1px solid rgba(5, 202, 255, 0.35);
  border-radius: 8px;
  padding: 8px 12px;
  margin-bottom: 8px;
}
.genre-banner-icon {
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.rm-genre-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-bottom: 10px;
}
.rm-genre-btn {
  background: #0F172A;
  border: 1px solid #1E293B;
  color: #CBD5E1;
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 11px;
  font-weight: 700;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.rm-genre-btn:hover {
  background: #1E293B;
  color: #FFFFFF;
  border-color: #38BDF8;
}
.rm-genre-btn.active {
  background: rgba(5, 202, 255, 0.2);
  border-color: #05CAFF;
  color: #38BDF8;
}

.media-transport-footer {
  height: 44px;
  background: #0C1424;
  border-top: 1.5px solid #1E3252;
  padding: 0 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.media-ctrl-btn {
  background: #152238;
  color: #38BDF8;
  border: 1px solid #284066;
  border-radius: 7px;
  padding: 5px 10px;
  font-weight: 900;
  font-size: 11px;
  cursor: pointer;
}
.media-ctrl-btn:hover {
  border-color: #05CAFF;
  background: #1B2D4A;
  color: #FFFFFF;
}
.media-ctrl-btn.play {
  background: #2DD4BF;
  color: #04130E;
  border: none;
  min-width: 88px;
}
.media-ctrl-btn.bg-audio.on {
  background: #A855F7;
  color: #FFFFFF;
  border-color: #F5D0FE;
}

.audio-only-saver-overlay {
  display: none;
  position: fixed;
  inset: 54px 0 78px 0;
  background: rgba(3, 6, 12, 0.96);
  z-index: 55;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 24px;
  text-align: center;
}
.audio-only-saver-overlay.active {
  display: flex;
}

/* =====================================================================
   COLLAPSIBLE TOP-RIGHT MENU & EXPANDABLE BOTTOM FOOTER CONTROLS
   Tối ưu hiển thị thoáng trên Điện thoại, Máy tính bảng, iPad & Máy tính
   ===================================================================== */
.hdr-right-control-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.top-right-menu-btn {
  background: linear-gradient(135deg, rgba(5,202,255,0.22), rgba(246,55,227,0.22));
  color: #FFFFFF;
  border: 1.5px solid #05CAFF;
  border-radius: 8px;
  padding: 6px 14px;
  font-size: 12.5px;
  font-weight: 900;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 2px 10px rgba(5, 202, 255, 0.25);
  transition: all 0.2s ease;
}
.top-right-menu-btn:hover {
  background: linear-gradient(135deg, rgba(5,202,255,0.38), rgba(246,55,227,0.38));
  border-color: #38BDF8;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(5, 202, 255, 0.45);
}

/* Right-side Slide-out Menu Drawer */
.right-menu-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(3, 7, 18, 0.72);
  z-index: 99998;
  opacity: 0;
  pointer-events: none;
  backdrop-filter: blur(5px);
  transition: opacity 0.25s ease;
}
.right-menu-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.right-top-menu-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 350px;
  max-width: 88vw;
  height: 100vh;
  background: #090F1E;
  border-left: 1.5px solid #1E3252;
  z-index: 99999;
  box-shadow: -10px 0 40px rgba(0, 0, 0, 0.88);
  transform: translateX(100%);
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.right-top-menu-drawer.open {
  transform: translateX(0);
}

.right-menu-hdr {
  padding: 14px 18px;
  background: #060B15;
  border-bottom: 1.5px solid #1E2D4A;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}
.right-menu-close-btn {
  background: rgba(239, 68, 68, 0.2);
  border: 1px solid #EF4444;
  color: #F87171;
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 11.5px;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.15s ease;
}
.right-menu-close-btn:hover {
  background: #EF4444;
  color: #FFFFFF;
}

.right-menu-body {
  padding: 16px;
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.right-menu-sec-title {
  font-size: 11.5px;
  font-weight: 900;
  color: #38BDF8;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.right-menu-tabs-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.rm-tab-item {
  background: #0E1729;
  border: 1px solid #1E2D4A;
  border-radius: 9px;
  padding: 10px 12px;
  color: #CBD5E1;
  font-size: 12.5px;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: all 0.15s ease;
  text-align: left;
}
.rm-tab-item:hover {
  background: #14223B;
  border-color: #38BDF8;
  color: #FFFFFF;
}
.rm-tab-item.active {
  background: linear-gradient(135deg, rgba(246,55,227,0.22), rgba(5,202,255,0.22));
  border-color: #05CAFF;
  color: #FFFFFF;
  box-shadow: 0 0 12px rgba(5, 202, 255, 0.3);
}
.rm-icon {
  font-size: 16px;
  width: 22px;
  text-align: center;
}
.rm-title {
  flex: 1;
}
.rm-badge {
  font-size: 10px;
  font-weight: 900;
  padding: 2px 7px;
  border-radius: 99px;
  background: #1E293B;
  color: #94A3B8;
  border: 1px solid #334155;
}
.rm-badge.hot {
  background: rgba(16, 185, 129, 0.25);
  color: #34D399;
  border-color: #10B981;
}
.rm-badge.gold {
  background: rgba(245, 158, 11, 0.25);
  color: #FBBF24;
  border-color: #F59E0B;
}

.right-menu-tools-box {
  background: #060B15;
  border: 1px solid #1A2842;
  border-radius: 10px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.rm-tool-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* =====================================================================
   RESPONSIVE: TRÊN MÀN HÌNH NHỎ (ĐIỆN THOẠI, TABLET, IPAD)
   Tự động ẩn menu ngang cồng kềnh, chuyển sang menu bên phải
   ===================================================================== */
@media (max-width: 1180px) {
  .top-nav-tabs-desktop {
    display: none !important;
  }
  .top-actions-desktop {
    display: none !important;
  }
  .top-right-menu-btn {
    display: inline-flex !important;
  }
}

@media (max-width: 960px) {
  .karaoke-layout {
    grid-template-columns: 1fr !important;
  }
  .karaoke-stage-card {
    min-height: 250px !important;
    aspect-ratio: 16 / 9 !important;
  }
  .karaoke-right-col {
    width: 100% !important;
    min-width: 0 !important;
    max-width: 100% !important;
  }
  .stage-sub-restore-pill {
    top: 64px !important;
    font-size: 11px !important;
    padding: 5px 14px !important;
    max-width: 90% !important;
    text-align: center !important;
  }
}

/* =====================================================================
   BOTTOM MEDIA BAR: THU GỌN VÀ MỞ RỘNG (EXPANDABLE FOOTER CONTROLS)
   ===================================================================== */
.media-transport-footer {
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease;
}
.media-transport-footer.is-collapsed {
  transform: translateY(100%) !important;
  pointer-events: none !important;
  opacity: 0 !important;
}

.footer-floating-expand-btn {
  position: fixed;
  bottom: 12px;
  right: 16px;
  z-index: 9000;
  background: linear-gradient(135deg, rgba(5,202,255,0.95), rgba(133,20,245,0.95));
  color: #FFFFFF;
  border: 1.5px solid #38BDF8;
  border-radius: 99px;
  padding: 8px 18px;
  font-size: 12px;
  font-weight: 900;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.75), 0 0 16px rgba(5, 202, 255, 0.5);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
  backdrop-filter: blur(8px);
}
.footer-floating-expand-btn:hover {
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.85), 0 0 22px rgba(5, 202, 255, 0.7);
}