/* Episode 8: NVIDIA NVLink & NVSwitch - Custom Styling */
:root {
  --bg-dark: #070a0e;
  --bg-card: rgba(14, 19, 28, 0.75);
  --bg-card-hover: rgba(20, 28, 42, 0.9);
  --border-color: rgba(255, 255, 255, 0.08);

  --nv-green: #76b900;
  --nv-glow: rgba(118, 185, 0, 0.25);
  --cyan-primary: #00f5ff;
  --cyan-glow: rgba(0, 245, 255, 0.2);
  --green-lossless: #10b981;
  --red-alert: #ef4444;
  --amber-warn: #f59e0b;

  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Space Grotesk', var(--font-sans);
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-sans);
  min-height: 100vh;
  overflow: hidden;
  background-image:
    radial-gradient(circle at 15% 15%, rgba(118, 185, 0, 0.06) 0%, transparent 40%),
    radial-gradient(circle at 85% 85%, rgba(0, 245, 255, 0.05) 0%, transparent 45%),
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 48px 48px, 48px 48px;
}

.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  position: relative;
}

/* TOP NAVIGATION */
.top-nav {
  height: 64px;
  background: rgba(10, 14, 22, 0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 50;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 18px;
}

.back-hub-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  transition: all 0.2s ease;
}

.back-hub-btn:hover {
  color: var(--nv-green);
  border-color: var(--nv-green);
  background: rgba(118, 185, 0, 0.08);
}

.series-tag {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--nv-green);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--nv-green);
  box-shadow: 0 0 10px var(--nv-green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.nav-center .current-slide-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: #fff;
  letter-spacing: 0.02em;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.hud-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.hud-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 500;
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.hud-btn:hover, .hud-btn.active {
  color: #fff;
  border-color: var(--nv-green);
  background: rgba(118, 185, 0, 0.12);
}

.slide-counter-badge {
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 4px 10px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--nv-green);
}

/* SLIDE VIEWPORT */
.slide-viewport {
  flex: 1;
  position: relative;
  overflow: hidden;
}

.slide {
  position: absolute;
  inset: 0;
  padding: 32px 48px;
  opacity: 0;
  pointer-events: none;
  transform: translateX(40px);
  transition: opacity 0.35s ease, transform 0.35s ease;
  overflow-y: auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slide.active {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
}

.slide-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

/* TYPOGRAPHY */
.section-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--nv-green);
  text-transform: uppercase;
  margin-bottom: 8px;
  display: inline-block;
}

.nv-tag { color: var(--nv-green) !important; }

.slide h2 {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
  line-height: 1.2;
}

.slide-desc {
  color: var(--text-muted);
  font-size: 15px;
  max-width: 820px;
  margin-bottom: 28px;
  line-height: 1.5;
}

.nv-gradient {
  background: linear-gradient(135deg, var(--nv-green) 0%, #a3e635 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-nv { color: var(--nv-green) !important; }
.text-cyan { color: var(--cyan-primary) !important; }
.text-red { color: var(--red-alert) !important; }
.text-green { color: var(--green-lossless) !important; }
.text-amber { color: var(--amber-warn) !important; }

/* SLIDE 1: HERO GRID */
.hero-header {
  text-align: center;
  margin-bottom: 30px;
}

.hero-pill {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
  background: rgba(118, 185, 0, 0.1);
  border: 1px solid rgba(118, 185, 0, 0.3);
  color: var(--nv-green);
}

.glitch-title {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 10px;
}

.hero-subtitle {
  color: var(--text-muted);
  font-size: 16px;
  max-width: 780px;
  margin: 0 auto;
}

.hero-stage-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.interconnect-compare-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: blur(12px);
}

.pcie-card {
  border-color: rgba(239, 68, 68, 0.3);
}

.nvlink-card {
  border-color: rgba(118, 185, 0, 0.4);
  box-shadow: 0 10px 30px -10px rgba(118, 185, 0, 0.15);
}

.interconnect-header {
  margin-bottom: 16px;
}

.bad-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--red-alert);
  letter-spacing: 0.1em;
  margin-bottom: 4px;
  display: block;
}

.good-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--nv-green);
  letter-spacing: 0.1em;
  margin-bottom: 4px;
  display: block;
}

.interconnect-header h3 {
  font-size: 18px;
  color: #fff;
}

.speedo-box {
  background: rgba(0, 0, 0, 0.4);
  border-radius: 8px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  margin-bottom: 16px;
  text-align: center;
}

.speed-val {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 6px;
}

.speed-label {
  font-size: 11px;
  color: var(--text-muted);
}

.traffic-jam-visual, .nvlink-pulse-visual {
  background: rgba(0, 0, 0, 0.3);
  padding: 12px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  margin-bottom: 14px;
  text-align: center;
}

.bus-lane.congested {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-muted);
}

.jam-arrow { color: var(--red-alert); font-weight: 700; }

.nv-laser-lane {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.gpu-chip {
  background: rgba(118, 185, 0, 0.15);
  border: 1px solid var(--nv-green);
  color: #fff;
  padding: 4px 8px;
  border-radius: 4px;
  font-weight: 700;
}

.nv-crossbar-pulse {
  color: var(--nv-green);
  font-weight: 700;
  letter-spacing: 0.05em;
  animation: pulse 1.5s infinite;
}

.card-caption {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
}

/* SLIDE 2: TIMELINE GENERATIONS */
.timeline-generations-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}

.gen-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.gen-box.highlight-gen {
  border-color: var(--nv-green);
  background: rgba(118, 185, 0, 0.06);
  box-shadow: 0 0 20px rgba(118, 185, 0, 0.15);
}

.gen-box.blackwell-gen {
  border-color: var(--cyan-primary);
  background: rgba(0, 245, 255, 0.06);
  box-shadow: 0 0 20px rgba(0, 245, 255, 0.15);
}

.gen-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.gen-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  color: #fff;
}

.gen-year {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
}

.gen-speed {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 800;
  margin: 6px 0;
  color: #fff;
}

.gen-box p {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
  margin-bottom: 12px;
}

.gen-feature {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  color: var(--text-dim);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 8px;
}

/* SLIDE 3: NVSWITCH ARCHITECTURE */
.nvswitch-architecture-view {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
}

.hgx-board-layout {
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  padding: 16px;
}

.gpu-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.gpu-node-box {
  background: rgba(118, 185, 0, 0.15);
  border: 1px solid var(--nv-green);
  color: #fff;
  padding: 10px;
  border-radius: 6px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

.nvswitch-core-tier {
  background: rgba(0, 0, 0, 0.5);
  border: 1px dashed var(--nv-green);
  border-radius: 8px;
  padding: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  position: relative;
}

.switch-chip-box {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 6px 12px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--cyan-primary);
  font-weight: 700;
}

.nvswitch-core-badge {
  width: 100%;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  color: var(--nv-green);
  margin-top: 6px;
  letter-spacing: 0.08em;
}

.nvswitch-benefits-sidebar {
  display: flex;
  flex-direction: column;
  gap: 14px;
  justify-content: center;
}

.nv-perk {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.4;
}

.nv-perk strong { color: #fff; }
.perk-icon { font-size: 20px; }

/* SLIDE 4: SIMULATOR */
.sim-container {
  display: grid;
  grid-template-columns: 1.1fr 1.3fr;
  gap: 24px;
  background: var(--bg-card);
  border: 1px solid var(--nv-glow);
  box-shadow: 0 0 30px rgba(118, 185, 0, 0.06);
  border-radius: 12px;
  padding: 24px;
}

.sim-controls-panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  padding-right: 24px;
}

.sim-control-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sim-control-group label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.toggle-btn {
  flex: 1;
  min-width: 90px;
  padding: 8px 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 500;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: var(--font-sans);
}

.toggle-btn:hover {
  border-color: rgba(118, 185, 0, 0.4);
  color: #fff;
}

.toggle-btn.active {
  background: rgba(118, 185, 0, 0.15);
  border-color: var(--nv-green);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 0 10px rgba(118, 185, 0, 0.25);
}

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

.slider-badge {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--nv-green);
  background: rgba(118, 185, 0, 0.15);
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid var(--nv-green);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--nv-green);
  cursor: pointer;
}

.run-sync-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--nv-green) 0%, #84cc16 100%);
  color: #000;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 13px;
  padding: 10px 16px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  box-shadow: 0 0 16px rgba(118, 185, 0, 0.3);
  transition: all 0.2s ease;
}

.run-sync-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 24px rgba(118, 185, 0, 0.5);
}

.sim-display-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.crossbar-viz-box {
  background: rgba(0, 0, 0, 0.4);
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 14px;
  display: flex;
  flex-direction: column;
}

.viz-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
}

#crossbar-viz-title { color: var(--text-dim); }

.status-pill-nv {
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 10px;
  background: rgba(118, 185, 0, 0.15);
  border: 1px solid var(--nv-green);
  color: var(--nv-green);
}

.status-pill-nv.pcie {
  background: rgba(239, 68, 68, 0.15);
  border-color: var(--red-alert);
  color: var(--red-alert);
}

#crossbarCanvas {
  max-width: 100%;
  height: auto;
}

.sim-metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.gauge-card {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  padding: 12px 14px;
}

.g-label {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.g-val {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  line-height: 1.1;
}

.g-sub {
  font-size: 10px;
  color: var(--text-dim);
  margin-top: 4px;
}

/* SLIDE 5: MEMORY POOLING */
.memory-pooling-view {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.physical-gpus-tier .tier-title {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.gpu-mem-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 8px;
}

.hbm-chunk {
  background: rgba(118, 185, 0, 0.1);
  border: 1px solid var(--nv-green);
  color: #fff;
  padding: 8px 4px;
  border-radius: 4px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
}

.unified-beam-bridge {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  color: var(--nv-green);
  letter-spacing: 0.08em;
  padding: 6px 0;
  border-top: 1px dashed var(--nv-green);
  border-bottom: 1px dashed var(--nv-green);
  position: relative;
}

.virtual-mega-gpu-card {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--nv-green);
  box-shadow: 0 0 20px rgba(118, 185, 0, 0.1);
  border-radius: 8px;
  padding: 18px;
}

.mega-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.mega-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--cyan-primary);
  letter-spacing: 0.08em;
  font-weight: 700;
}

.virtual-mega-gpu-card h3 {
  font-size: 18px;
  color: #fff;
}

.mega-code-sample {
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  padding: 10px 14px;
  margin-bottom: 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mega-code-sample code {
  font-family: var(--font-mono);
  font-size: 11px;
  color: #a3e635;
}

.mega-benefits-row {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--text-muted);
}

.m-perk { font-weight: 500; }

/* SLIDE 6: GB200 NVL72 */
.nvl72-rack-view {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
  align-items: stretch;
}

.rack-spec-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
}

.rack-hero-title {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--nv-green);
  letter-spacing: 0.1em;
  font-weight: 700;
  margin-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 8px;
}

.rack-metrics-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.r-metric {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  padding-bottom: 8px;
}

.rm-k { color: var(--text-muted); }
.rm-v { font-weight: 600; text-align: right; }

.copper-backplane-card {
  background: var(--bg-card);
  border: 1px solid rgba(118, 185, 0, 0.3);
  border-radius: 12px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.cable-art {
  background: rgba(0, 0, 0, 0.4);
  border-radius: 8px;
  padding: 16px;
  text-align: center;
  margin-bottom: 16px;
}

.copper-bundle {
  display: flex;
  gap: 6px;
  justify-content: center;
  margin-bottom: 10px;
}

.cable-wire {
  width: 8px;
  height: 48px;
  background: linear-gradient(180deg, #d97706, #b45309);
  border-radius: 4px;
  box-shadow: 0 0 8px rgba(217, 119, 6, 0.4);
}

.cable-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--nv-green);
  font-weight: 700;
}

.copper-explainer {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

.copper-explainer strong { color: #fff; }

/* SLIDE 7: WRAP-UP */
.wrap-up-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

.rule-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.rule-num {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.15);
  line-height: 1;
  margin-bottom: 8px;
}

.rule-card h3 {
  font-size: 17px;
  color: #fff;
  margin-bottom: 8px;
}

.rule-card p {
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.4;
  margin-bottom: 14px;
}

.rule-stat {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.next-episode-teaser {
  background: linear-gradient(135deg, rgba(118, 185, 0, 0.12) 0%, rgba(0, 245, 255, 0.08) 100%);
  border: 1px solid var(--nv-green);
  border-radius: 12px;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.teaser-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--nv-green);
  margin-bottom: 4px;
  font-weight: 700;
}

.teaser-content h3 {
  font-size: 17px;
  color: #fff;
  margin-bottom: 4px;
}

.teaser-content p {
  color: var(--text-muted);
  font-size: 13px;
}

.teaser-pill {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--nv-green);
  color: #000;
  box-shadow: 0 0 14px var(--nv-glow);
  white-space: nowrap;
}

/* BOTTOM BAR */
.bottom-bar {
  height: 64px;
  background: rgba(10, 14, 22, 0.9);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 50;
}

.nav-control-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.nav-control-btn:hover {
  color: #fff;
  border-color: var(--nv-green);
  background: rgba(118, 185, 0, 0.08);
}

.nav-control-btn.next-primary {
  background: linear-gradient(135deg, var(--nv-green) 0%, #84cc16 100%);
  color: #000;
  border: none;
  font-weight: 700;
  box-shadow: 0 0 16px rgba(118, 185, 0, 0.3);
}

.nav-control-btn.next-primary:hover {
  box-shadow: 0 0 24px rgba(118, 185, 0, 0.5);
}

.timeline-indicator .dot-track {
  display: flex;
  gap: 10px;
}

.step-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
}

.step-dot:hover {
  background: rgba(118, 185, 0, 0.5);
  transform: scale(1.2);
}

.step-dot.active {
  background: var(--nv-green);
  box-shadow: 0 0 10px var(--nv-green);
  transform: scale(1.3);
}

/* PRESENTER HUD DRAWER */
.teleprompter-drawer {
  position: absolute;
  bottom: 64px;
  left: 24px;
  right: 24px;
  max-width: 900px;
  margin: 0 auto;
  background: rgba(8, 12, 18, 0.96);
  border: 1px solid rgba(118, 185, 0, 0.35);
  box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.8);
  border-radius: 12px 12px 0 0;
  z-index: 60;
  transform: translateY(110%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  max-height: 260px;
}

.teleprompter-drawer.open {
  transform: translateY(0);
}

.drawer-header {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.drawer-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--nv-green);
  font-weight: 700;
}

.pulse-mic {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--red-alert);
  box-shadow: 0 0 6px var(--red-alert);
}

.slide-cue-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
  margin-right: 10px;
}

.close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 14px;
}

.close-btn:hover { color: #fff; }

.drawer-body {
  padding: 14px 18px;
  overflow-y: auto;
  font-size: 14px;
  line-height: 1.6;
  color: #e5e7eb;
}

.drawer-body p {
  margin-bottom: 8px;
}

.drawer-body strong {
  color: var(--nv-green);
}

.drawer-footer {
  padding: 6px 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
}

.keys-legend {
  display: flex;
  gap: 14px;
}

kbd {
  background: rgba(255, 255, 255, 0.1);
  padding: 1px 5px;
  border-radius: 3px;
  color: #fff;
}

/* ==========================================================
   CLEAN RECORDING MODE: Hide presenter tools & dev hints
   ========================================================== */
#toggle-voice-btn,
#toggle-teleprompter-btn,
.keys-legend {
  display: none !important;
}