/* ========================================================
   ApexEdge™ CDN & Network Telemetry Portal - Global Styles
   Modern Dark Enterprise & Cyber-Telemetry Theme
   ======================================================== */

:root {
  --bg-main: #070a12;
  --bg-card: #0d1424;
  --bg-card-hover: #121c33;
  --bg-input: #15223c;
  --bg-header: rgba(10, 15, 28, 0.88);
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-card: rgba(0, 240, 255, 0.14);
  --border-card-hover: rgba(0, 240, 255, 0.35);

  --accent-cyan: #00f0ff;
  --accent-cyan-glow: rgba(0, 240, 255, 0.35);
  --accent-purple: #a855f7;
  --accent-purple-glow: rgba(168, 85, 247, 0.35);
  --accent-green: #10b981;
  --accent-green-glow: rgba(16, 185, 129, 0.35);
  --accent-red: #ef4444;

  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-sub: #64748b;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Consolas, "Courier New", monospace;
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 20px rgba(0, 240, 255, 0.2);
}

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

body {
  background-color: var(--bg-main);
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(0, 240, 255, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 85% 85%, rgba(168, 85, 247, 0.04) 0%, transparent 40%),
    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%, 40px 40px, 40px 40px;
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* ========================================================
   Navbar
   ======================================================== */
.navbar {
  background: var(--bg-header);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-card);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo-icon {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.2), rgba(168, 85, 247, 0.2));
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
  padding: 6px;
  border-radius: var(--radius-md);
  box-shadow: 0 0 12px var(--accent-cyan-glow);
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: #fff;
}

.brand-accent {
  color: var(--accent-cyan);
}

.brand-tag {
  font-size: 0.65rem;
  font-family: var(--font-mono);
  color: var(--text-sub);
  letter-spacing: 1.5px;
}

.edge-status-pill {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(13, 20, 36, 0.7);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-full);
  padding: 0.4rem 0.9rem;
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-green-glow);
  animation: pulse-ring 1.8s infinite cubic-bezier(0.4, 0, 0.6, 1);
}

@keyframes pulse-ring {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.2); }
}

.status-divider {
  color: var(--border-subtle);
}

.status-asn {
  color: var(--text-muted);
}

.badge-sla {
  color: var(--accent-green);
  font-weight: 700;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  overflow-x: auto;
}

.nav-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  white-space: nowrap;
}

.nav-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.05);
}

.nav-btn.active {
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.1);
  border-color: rgba(0, 240, 255, 0.3);
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.15);
}

/* ========================================================
   Ticker Bar
   ======================================================== */
.ticker-bar {
  background: #090e1b;
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.35rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  overflow-x: auto;
}

.ticker-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 2rem;
  white-space: nowrap;
}

.ticker-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.ticker-label {
  color: var(--text-sub);
}

.ticker-val {
  color: #fff;
  font-weight: 700;
}

/* ========================================================
   Main Container & Tab Panels
   ======================================================== */
.main-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  width: 100%;
  flex: 1;
}

.tab-pane {
  display: none;
  animation: fadeIn 0.25s ease-out;
}

.tab-pane.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.section-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.section-header h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.5px;
}

.section-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* ========================================================
   Common UI Cards & Badges
   ======================================================== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  border-color: var(--border-card-hover);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.card-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
}

.card-subtitle {
  font-size: 0.8rem;
  color: var(--text-sub);
  display: block;
  margin-top: 0.15rem;
}

/* Badges */
.stat-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-green {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-green);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-purple {
  background: rgba(168, 85, 247, 0.15);
  color: var(--accent-purple);
  border: 1px solid rgba(168, 85, 247, 0.3);
}

.badge-cyan {
  background: rgba(0, 240, 255, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 240, 255, 0.3);
}

.badge-status, .badge-tag, .badge-chip {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--accent-cyan);
}

/* Common Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
  font-family: var(--font-sans);
}

.btn-primary {
  background: linear-gradient(135deg, #00d2ff 0%, #0072ff 100%);
  color: #fff;
  box-shadow: 0 4px 16px rgba(0, 114, 255, 0.35);
}

.btn-primary:hover {
  box-shadow: 0 6px 20px rgba(0, 114, 255, 0.55);
  transform: translateY(-1px);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border-card);
  color: var(--text-main);
}

.btn-outline:hover {
  background: rgba(0, 240, 255, 0.1);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.btn-danger {
  background: var(--accent-red);
  color: #fff;
}

.btn-large {
  padding: 0.85rem 2rem;
  font-size: 1.05rem;
  letter-spacing: 0.5px;
}

.btn-small {
  padding: 0.3rem 0.7rem;
  font-size: 0.75rem;
}

/* ========================================================
   Stats Grid (Telemetry KPI)
   ======================================================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}

.stat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.stat-title {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 1.85rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.5px;
}

.stat-unit {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 500;
}

.stat-sub {
  font-size: 0.75rem;
  color: var(--text-sub);
  margin-top: 0.35rem;
  margin-bottom: 0.75rem;
}

.mini-bar-bg {
  height: 4px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 2px;
  overflow: hidden;
}

.mini-bar-fill {
  height: 100%;
  background: var(--accent-green);
  border-radius: 2px;
  transition: width 0.4s ease;
}

.fill-purple { background: var(--accent-purple); }
.fill-cyan { background: var(--accent-cyan); }

/* ========================================================
   Charts Section
   ======================================================== */
.charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.75rem;
}

@media (max-width: 900px) {
  .charts-grid {
    grid-template-columns: 1fr;
  }
}

.canvas-wrapper {
  position: relative;
  width: 100%;
  background: rgba(7, 10, 18, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.5rem;
  overflow: hidden;
}

canvas {
  display: block;
  width: 100% !important;
  height: auto !important;
}

.legend {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.dot-cyan { background-color: var(--accent-cyan); }
.dot-purple { background-color: var(--accent-purple); }

/* PoP Table */
.pop-table-wrapper {
  overflow-x: auto;
}

.pop-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  text-align: left;
}

.pop-table th {
  background: rgba(255, 255, 255, 0.03);
  padding: 0.75rem 1rem;
  color: var(--text-sub);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.pop-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

.pop-active-row td {
  background: rgba(0, 240, 255, 0.04);
  color: #fff;
}

.pop-code {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-cyan);
}

.badge-current {
  background: rgba(0, 240, 255, 0.15);
  color: var(--accent-cyan);
  font-size: 0.65rem;
  padding: 0.15rem 0.4rem;
  border-radius: var(--radius-sm);
  margin-left: 0.4rem;
}

.status-indicator {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  margin-right: 0.4rem;
}

.status-indicator.online {
  background-color: var(--accent-green);
  box-shadow: 0 0 6px var(--accent-green-glow);
}

.progress-cell {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.progress-bar {
  width: 80px;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  position: relative;
  overflow: hidden;
}

.progress-bar::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: inherit;
  background: var(--accent-cyan);
}

/* ========================================================
   Speedtest Module
   ======================================================== */
.speedtest-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.speedtest-controls-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.speedtest-mode-selector {
  display: flex;
  background: rgba(7, 10, 18, 0.8);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-full);
  padding: 0.3rem;
  gap: 0.3rem;
}

.mode-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.2s ease;
}

.mode-btn.active {
  background: var(--accent-cyan);
  color: #050811;
  box-shadow: 0 0 12px var(--accent-cyan-glow);
}

.burnin-config {
  width: 100%;
  background: rgba(7, 10, 18, 0.5);
  border: 1px dashed var(--accent-purple);
  border-radius: var(--radius-md);
  padding: 1rem 1.5rem;
}

.burnin-config.hidden {
  display: none;
}

.burnin-row {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 1rem;
}

.config-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.config-group label {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.custom-select {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  outline: none;
}

.speed-gauges-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .speed-gauges-grid {
    grid-template-columns: 1fr;
  }
}

.gauge-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2rem 1.5rem;
}

.gauge-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.gauge-display {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.gauge-num {
  font-family: var(--font-mono);
  font-size: 4rem;
  font-weight: 900;
  color: #fff;
  line-height: 1;
}

.gauge-unit {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-sub);
}

.progress-bar-large {
  width: 100%;
  height: 12px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 1rem;
}

.progress-bar-inner {
  height: 100%;
  width: 0%;
  transition: width 0.2s linear;
}

.bar-cyan {
  background: linear-gradient(90deg, #00f0ff, #0072ff);
  box-shadow: 0 0 12px var(--accent-cyan-glow);
}

.bar-purple {
  background: linear-gradient(90deg, #d946ef, #8b5cf6);
  box-shadow: 0 0 12px var(--accent-purple-glow);
}

.gauge-meta {
  width: 100%;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.speed-substats-grid {
  margin-bottom: 0;
}

.highlight-card {
  border-color: rgba(0, 240, 255, 0.3);
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.05) 0%, rgba(13, 20, 36, 1) 100%);
}

.text-accent { color: var(--accent-cyan) !important; }
.text-success { color: var(--accent-green) !important; }

.status-pill-small {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
}

.hidden {
  display: none !important;
}

/* ========================================================
   4K Video Bench
   ======================================================== */
.video-bench-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 1024px) {
  .video-bench-grid {
    grid-template-columns: 1fr;
  }
}

.player-container {
  position: relative;
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
  aspect-ratio: 16 / 9;
}

#video-stream-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.video-hud {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1rem;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(0,0,0,0.6) 0%, transparent 20%, transparent 80%, rgba(0,0,0,0.8) 100%);
}

.hud-top {
  display: flex;
  gap: 0.6rem;
}

.hud-badge {
  background: rgba(0, 0, 0, 0.65);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  color: #fff;
  backdrop-filter: blur(4px);
}

.hud-bottom {
  pointer-events: auto;
}

.hud-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.hud-btn {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  font-size: 0.85rem;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  backdrop-filter: blur(4px);
}

.hud-btn:hover {
  background: rgba(255, 255, 255, 0.25);
}

.res-switcher {
  display: flex;
  background: rgba(0, 0, 0, 0.6);
  border-radius: var(--radius-sm);
  padding: 0.2rem;
  gap: 0.2rem;
}

.res-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  cursor: pointer;
}

.res-btn.active {
  background: var(--accent-cyan);
  color: #000;
  font-weight: 700;
}

.video-meta-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
  padding: 0.75rem;
  background: rgba(7, 10, 18, 0.5);
  border-radius: var(--radius-md);
  font-size: 0.8rem;
}

.meta-label {
  color: var(--text-sub);
  display: block;
  font-size: 0.7rem;
}

.meta-val {
  color: #fff;
  font-family: var(--font-mono);
  font-weight: 600;
}

.video-telemetry-col {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mini-chart-card {
  padding: 1rem;
}

.mini-chart-card h4 {
  font-size: 0.9rem;
  color: #fff;
}

.specs-list {
  list-style: none;
  font-size: 0.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 0.75rem;
}

.specs-list li {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 0.4rem;
  color: var(--text-muted);
}

.specs-list strong {
  font-family: var(--font-mono);
  color: #fff;
}

/* ========================================================
   Game Module (Packet Runner)
   ======================================================== */
.game-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.game-hud-bar {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.game-hud-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hud-title {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-sub);
}

.hud-value {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
}

.shield-blocks {
  display: flex;
  gap: 4px;
}

.shield-pip {
  width: 14px;
  height: 14px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  border: 1px solid var(--border-subtle);
}

.shield-pip.active {
  background: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan-glow);
  border-color: var(--accent-cyan);
}

.game-canvas-box {
  position: relative;
  background: #020308;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.8);
}

#game-canvas {
  width: 100%;
  height: auto;
  display: block;
}

.game-overlay-screen {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(5, 8, 18, 0.85);
  backdrop-filter: blur(6px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  z-index: 10;
}

.game-title {
  font-size: 3rem;
  font-weight: 900;
  letter-spacing: 2px;
  background: linear-gradient(135deg, #00f0ff, #d946ef);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.25rem;
}

.game-subtitle {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 4px;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.game-instructions {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 2rem;
  max-width: 540px;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.game-instructions strong {
  color: #fff;
}

/* ========================================================
   Datasets & Big Data
   ======================================================== */
.dataset-quick-card {
  margin-bottom: 1.5rem;
}

.chunk-buttons-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

.chunk-status-msg {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-cyan);
  margin-top: 0.75rem;
}

.table-wrapper {
  overflow-x: auto;
}

.dataset-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  text-align: left;
}

.dataset-table th {
  background: rgba(255, 255, 255, 0.03);
  padding: 0.75rem 1rem;
  color: var(--text-sub);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.dataset-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

.dataset-table code {
  font-family: var(--font-mono);
  color: var(--accent-purple);
  background: rgba(168, 85, 247, 0.1);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
}

/* ========================================================
   Specs & Xray Camouflage Section
   ======================================================== */
.specs-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 860px) {
  .specs-cards-grid {
    grid-template-columns: 1fr;
  }
}

.specs-table {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.spec-row {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 0.5rem;
  font-size: 0.85rem;
}

.spec-key {
  color: var(--text-sub);
}

.spec-val {
  font-family: var(--font-mono);
  color: #fff;
  font-weight: 600;
  text-align: right;
}

.camouflage-points {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.point-item {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
}

.point-icon {
  font-size: 1.5rem;
}

.point-text strong {
  color: #fff;
  font-size: 0.9rem;
  display: block;
}

.point-text p {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: 0.2rem;
  line-height: 1.5;
}

.code-card {
  margin-top: 1.5rem;
}

.code-block {
  background: #04060c;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
  color: #38bdf8;
}

/* ========================================================
   Footer
   ======================================================== */
.footer {
  background: #050811;
  border-top: 1px solid var(--border-subtle);
  padding: 1.5rem;
  font-size: 0.8rem;
  color: var(--text-sub);
  margin-top: 3rem;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.footer-dot {
  color: var(--border-subtle);
}

.footer-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.2rem 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
  color: var(--text-muted);
}