/* ==========================================================================
   tabenren.com - Futuristic Cyberpunk Digital Identity Card Stylesheet
   ========================================================================== */

:root {
  /* Cyberpunk / Sci-Fi Neon Palette */
  --bg-dark: #060913;
  --bg-card: rgba(12, 18, 33, 0.72);
  --bg-card-hover: rgba(16, 24, 46, 0.85);
  --border-cyber: rgba(0, 240, 255, 0.25);
  --border-bright: rgba(0, 240, 255, 0.75);
  
  --neon-cyan: #00f0ff;
  --neon-purple: #9b51e0;
  --neon-magenta: #f72585;
  --neon-green: #00ff88;
  --neon-blue: #3a86ff;
  
  --text-main: #f0f4fc;
  --text-dim: #8b9bb4;
  --text-muted: #53627c;
  
  --font-display: 'Orbitron', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-tech: 'Rajdhani', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Space Grotesk', -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  
  --card-radius: 20px;
  --glow-cyan: 0 0 25px rgba(0, 240, 255, 0.4);
  --glow-purple: 0 0 25px rgba(155, 81, 224, 0.4);
}

/* Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  min-height: 100%;
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-body);
  overflow-x: hidden;
  position: relative;
}

body {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100vh;
}

/* Ambient Cyber Glow Orbs */
.glow-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.55;
  animation: floatOrb 18s ease-in-out infinite alternate;
}

.orb-1 {
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.35) 0%, rgba(0,0,0,0) 70%);
  top: -100px;
  left: -120px;
}

.orb-2 {
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(155, 81, 224, 0.35) 0%, rgba(0,0,0,0) 70%);
  bottom: -150px;
  right: -100px;
  animation-delay: -6s;
}

.orb-3 {
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(247, 37, 133, 0.25) 0%, rgba(0,0,0,0) 70%);
  top: 45%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: -12s;
}

@keyframes floatOrb {
  0% { transform: translateY(0) scale(1); }
  50% { transform: translateY(40px) scale(1.1); }
  100% { transform: translateY(-30px) scale(0.95); }
}

/* Cyber Grid Lines Overlay */
.cyber-grid-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: 
    linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 1;
}

/* Dynamic Interactive Canvas */
#cyber-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  pointer-events: none;
}

/* ==========================================================================
   HUD Header
   ========================================================================== */
.hud-header {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
  background: linear-gradient(180deg, rgba(6, 9, 19, 0.85) 0%, rgba(6, 9, 19, 0) 100%);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 240, 255, 0.1);
}

.brand-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-tech);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 2px;
  color: var(--neon-cyan);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--neon-green);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--neon-green);
  animation: radarPulse 1.8s infinite;
}

@keyframes radarPulse {
  0% { transform: scale(0.9); opacity: 0.7; }
  50% { transform: scale(1.3); opacity: 1; box-shadow: 0 0 14px var(--neon-green); }
  100% { transform: scale(0.9); opacity: 0.7; }
}

.hud-center .telemetry {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-tech);
  font-size: 0.9rem;
  letter-spacing: 1px;
  color: var(--text-dim);
}

.telemetry-val.live {
  color: var(--neon-green);
  font-weight: 700;
}

.telemetry-clock {
  color: var(--neon-cyan);
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 1px;
}

.telemetry-sep {
  color: var(--text-muted);
}

.hud-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hud-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(14, 23, 42, 0.6);
  border: 1px solid var(--border-cyber);
  color: var(--text-main);
  padding: 6px 14px;
  border-radius: 6px;
  font-family: var(--font-tech);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.hud-btn:hover {
  background: rgba(0, 240, 255, 0.15);
  border-color: var(--neon-cyan);
  color: #fff;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
  transform: translateY(-1px);
}

.hidden {
  display: none !important;
}

/* ==========================================================================
   Main Stage & 3D Card Scene
   ========================================================================== */
.main-stage {
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30px 20px;
  flex: 1;
}

.card-scene {
  perspective: 1200px;
  width: 100%;
  max-width: 520px;
}

/* Cyber Holographic Card */
.cyber-card {
  position: relative;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--card-radius);
  border: 1px solid var(--border-cyber);
  padding: 32px 28px 24px;
  box-shadow: 
    0 25px 60px -15px rgba(0, 0, 0, 0.85),
    inset 0 1px 0 rgba(255, 255, 255, 0.1),
    0 0 35px rgba(0, 240, 255, 0.12);
  transform-style: preserve-3d;
  transition: transform 0.15s ease-out, box-shadow 0.3s ease, border-color 0.3s ease;
  overflow: hidden;
}

.cyber-card:hover {
  border-color: var(--border-bright);
  box-shadow: 
    0 35px 80px -15px rgba(0, 0, 0, 0.9),
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 0 45px rgba(0, 240, 255, 0.25);
}

/* Hologram Glare Overlay */
.hologram-glare {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle 320px at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(0, 240, 255, 0.18), transparent 75%);
  pointer-events: none;
  z-index: 2;
  transition: opacity 0.3s ease;
}

/* Border Corner HUD Brackets */
.bracket {
  position: absolute;
  width: 12px;
  height: 12px;
  border-color: var(--neon-cyan);
  border-style: solid;
  pointer-events: none;
  z-index: 4;
}

.bracket.top-left { top: 8px; left: 8px; border-width: 2px 0 0 2px; }
.bracket.top-right { top: 8px; right: 8px; border-width: 2px 2px 0 0; }
.bracket.bottom-left { bottom: 8px; left: 8px; border-width: 0 0 2px 2px; }
.bracket.bottom-right { bottom: 8px; right: 8px; border-width: 0 2px 2px 0; }

/* Top HUD Info */
.card-top-hud {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(0, 240, 255, 0.2);
}

.chip-slot {
  display: flex;
  align-items: center;
  gap: 10px;
}

.cyber-chip {
  width: 28px;
  height: 20px;
  background: linear-gradient(135deg, #d4af37 0%, #aa7c11 100%);
  border-radius: 4px;
  border: 1px solid #ffe066;
  position: relative;
  box-shadow: 0 0 8px rgba(212, 175, 55, 0.4);
}

.chip-lines {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 70%;
  height: 60%;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(0, 0, 0, 0.4);
  border-radius: 2px;
}

.chip-id {
  font-family: var(--font-tech);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--neon-cyan);
}

.card-serial {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 1.5px;
}

/* ==========================================================================
   Identity Section
   ========================================================================== */
.identity-section {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 22px;
}

/* Hologram Avatar */
.avatar-hud {
  position: relative;
  width: 90px;
  height: 90px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.avatar-ring {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.avatar-ring.outer-spin {
  width: 100%;
  height: 100%;
  border: 2px dashed var(--neon-cyan);
  animation: spinClockwise 12s linear infinite;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
}

.avatar-ring.inner-reverse {
  width: 82%;
  height: 82%;
  border: 1px solid var(--neon-purple);
  border-top-color: transparent;
  animation: spinCounter 8s linear infinite;
}

@keyframes spinClockwise {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes spinCounter {
  from { transform: rotate(360deg); }
  to { transform: rotate(0deg); }
}

.avatar-core {
  width: 68px;
  height: 68px;
  background: radial-gradient(circle at 35% 35%, #182848 0%, #0c1221 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(0, 240, 255, 0.5);
  box-shadow: inset 0 0 12px rgba(0, 240, 255, 0.4);
  position: relative;
  overflow: hidden;
}

.avatar-text {
  font-family: var(--font-body);
  font-size: 2rem;
  font-weight: 900;
  color: #ffffff;
  text-shadow: 0 0 10px var(--neon-cyan), 0 0 20px var(--neon-cyan);
  z-index: 2;
}

.avatar-glitch {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-body);
  font-size: 2rem;
  font-weight: 900;
  color: var(--neon-magenta);
  opacity: 0.7;
  pointer-events: none;
  z-index: 1;
  animation: avatarGlitch 4s infinite;
}

@keyframes avatarGlitch {
  0%, 92%, 100% { opacity: 0; transform: translate(-50%, -50%); }
  93% { opacity: 0.8; transform: translate(-47%, -52%); }
  95% { opacity: 0.9; transform: translate(-53%, -48%); filter: hue-rotate(90deg); }
  97% { opacity: 0.3; transform: translate(-50%, -50%); }
}

/* Identity Content */
.identity-content {
  flex: 1;
  min-width: 0;
}

.alias-tag {
  font-family: var(--font-tech);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--neon-green);
  margin-bottom: 4px;
}

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

.main-title {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 8px;
}

.name-zh {
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: 1px;
  background: linear-gradient(135deg, #ffffff 30%, var(--neon-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.name-en {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-dim);
  letter-spacing: 2px;
}

.domain-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.3);
  padding: 4px 10px;
  border-radius: 6px;
  font-family: var(--font-tech);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--neon-cyan);
  cursor: pointer;
  transition: all 0.2s ease;
  margin-bottom: 8px;
}

.domain-badge:hover {
  background: rgba(0, 240, 255, 0.2);
  border-color: var(--neon-cyan);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.3);
  transform: translateY(-1px);
}

.domain-prefix {
  opacity: 0.6;
}

.domain-name {
  font-weight: 700;
}

.copy-icon {
  opacity: 0.7;
}

.tagline {
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.4;
  font-style: italic;
}

/* Cyber Divider */
.cyber-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 18px 0 20px;
}

.divider-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.4), transparent);
}

.divider-diamond {
  width: 6px;
  height: 6px;
  background: var(--neon-cyan);
  transform: rotate(45deg);
  box-shadow: 0 0 8px var(--neon-cyan);
}

/* ==========================================================================
   Channels Section
   ========================================================================== */
.section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-tech);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--text-dim);
  margin-bottom: 14px;
}

.section-title svg {
  color: var(--neon-cyan);
}

.channel-card {
  display: flex;
  align-items: center;
  background: rgba(16, 25, 48, 0.65);
  border: 1px solid rgba(0, 240, 255, 0.15);
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 12px;
  gap: 14px;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.channel-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: transparent;
  transition: background 0.25s ease;
}

.channel-card:hover {
  background: rgba(22, 35, 68, 0.85);
  border-color: rgba(0, 240, 255, 0.5);
  transform: translateX(4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.channel-card.x-channel:hover::before {
  background: var(--neon-cyan);
  box-shadow: 0 0 10px var(--neon-cyan);
}

.channel-card.email-channel:hover::before {
  background: var(--neon-magenta);
  box-shadow: 0 0 10px var(--neon-magenta);
}

.channel-icon-wrap {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.channel-card:hover .channel-icon-wrap {
  transform: scale(1.08);
}

.x-bg {
  background: linear-gradient(135deg, #111827 0%, #1e293b 100%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
}

.email-bg {
  background: linear-gradient(135deg, rgba(247, 37, 133, 0.2) 0%, rgba(155, 81, 224, 0.3) 100%);
  border: 1px solid rgba(247, 37, 133, 0.4);
  color: var(--neon-magenta);
}

.channel-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.channel-type {
  font-family: var(--font-tech);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text-dim);
}

.channel-val {
  font-size: 0.95rem;
  font-weight: 600;
  color: #ffffff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.channel-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-main);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: var(--font-body);
}

.action-btn:hover {
  background: var(--neon-cyan);
  color: #050811;
  border-color: var(--neon-cyan);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
  transform: translateY(-1px);
}

.action-btn.mailto-btn {
  padding: 6px 10px;
}

.action-btn.mailto-btn:hover {
  background: var(--neon-magenta);
  border-color: var(--neon-magenta);
  color: #ffffff;
  box-shadow: 0 0 15px rgba(247, 37, 133, 0.5);
}

/* ==========================================================================
   Quick Operations Footer
   ========================================================================== */
.card-bottom-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 18px;
}

.cyber-cta-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 8px;
  font-family: var(--font-tech);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid transparent;
}

.vcard-btn {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.15) 0%, rgba(58, 134, 255, 0.2) 100%);
  border-color: rgba(0, 240, 255, 0.4);
  color: var(--neon-cyan);
}

.vcard-btn:hover {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.3) 0%, rgba(58, 134, 255, 0.4) 100%);
  border-color: var(--neon-cyan);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
  transform: translateY(-2px);
  color: #ffffff;
}

.share-btn {
  background: rgba(155, 81, 224, 0.15);
  border-color: rgba(155, 81, 224, 0.4);
  color: #c77dff;
}

.share-btn:hover {
  background: rgba(155, 81, 224, 0.3);
  border-color: #c77dff;
  box-shadow: 0 0 20px rgba(155, 81, 224, 0.4);
  transform: translateY(-2px);
  color: #ffffff;
}

/* Card Watermark */
.card-watermark {
  margin-top: 22px;
  padding-top: 14px;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.barcode {
  display: flex;
  align-items: center;
  gap: 2px;
  height: 14px;
  opacity: 0.4;
}

.barcode span {
  display: block;
  background-color: var(--neon-cyan);
  height: 100%;
  width: 1px;
}

.barcode span:nth-child(2n) { width: 2px; }
.barcode span:nth-child(3n) { height: 75%; }
.barcode span:nth-child(5n) { width: 3px; }

.watermark-text {
  font-family: var(--font-tech);
  font-size: 0.68rem;
  letter-spacing: 1.5px;
  color: var(--text-muted);
}

/* ==========================================================================
   QR Code Modal
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(3, 6, 14, 0.85);
  backdrop-filter: blur(12px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  padding: 20px;
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal-window {
  position: relative;
  background: rgba(14, 22, 42, 0.95);
  border: 1px solid var(--border-bright);
  box-shadow: 0 0 50px rgba(0, 240, 255, 0.3);
  border-radius: 16px;
  padding: 28px;
  max-width: 360px;
  width: 100%;
  text-align: center;
  transform: scale(0.9) translateY(20px);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-backdrop.active .modal-window {
  transform: scale(1) translateY(0);
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 14px;
  background: transparent;
  border: none;
  font-size: 1.8rem;
  color: var(--text-dim);
  cursor: pointer;
  line-height: 1;
  transition: color 0.2s ease;
}

.modal-close:hover {
  color: var(--neon-cyan);
}

.modal-hud-header {
  margin-bottom: 18px;
}

.hud-modal-tag {
  font-family: var(--font-tech);
  font-size: 0.75rem;
  color: var(--neon-cyan);
  letter-spacing: 1.5px;
  display: block;
  margin-bottom: 4px;
}

.modal-hud-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
}

.qr-frame {
  position: relative;
  width: 230px;
  height: 230px;
  margin: 0 auto 16px;
  background: #ffffff;
  padding: 16px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: 0 0 25px rgba(0, 240, 255, 0.2);
}

.qr-canvas-wrap {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.qr-canvas-wrap svg {
  width: 100%;
  height: 100%;
  shape-rendering: crispEdges;
}

.qr-corners {
  display: none;
}

.qr-scanline {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.7), transparent);
  box-shadow: 0 0 8px rgba(0, 240, 255, 0.5);
  animation: qrScan 3s ease-in-out infinite alternate;
  pointer-events: none;
  opacity: 0.6;
}

@keyframes qrScan {
  0% { top: 5%; opacity: 0.3; }
  100% { top: 95%; opacity: 1; }
}

.qr-url {
  font-family: var(--font-tech);
  font-size: 1rem;
  font-weight: 700;
  color: var(--neon-cyan);
  margin-bottom: 6px;
}

.qr-hint {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.4;
}

/* ==========================================================================
   Cyber HUD Toast
   ========================================================================== */
.cyber-toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: rgba(10, 17, 34, 0.95);
  border: 1px solid var(--neon-cyan);
  box-shadow: 0 10px 30px rgba(0, 240, 255, 0.35);
  backdrop-filter: blur(10px);
  border-radius: 8px;
  padding: 10px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.cyber-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.toast-indicator {
  width: 6px;
  height: 6px;
  background: var(--neon-green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--neon-green);
}

.toast-content {
  display: flex;
  align-items: center;
  gap: 8px;
}

.toast-tag {
  font-family: var(--font-tech);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--neon-cyan);
}

.toast-text {
  font-size: 0.85rem;
  color: #fff;
  font-weight: 500;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.hud-footer {
  position: relative;
  z-index: 10;
  padding: 16px 24px;
  border-top: 1px solid rgba(0, 240, 255, 0.08);
  background: rgba(6, 9, 19, 0.7);
}

.footer-content {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-tech);
  letter-spacing: 1px;
}

.footer-badges {
  display: flex;
  align-items: center;
  gap: 14px;
}

.badge-item {
  font-family: var(--font-tech);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: 1px;
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 640px) {
  .hud-header {
    padding: 12px 16px;
  }
  
  .hud-center {
    display: none;
  }

  .hud-btn .btn-text {
    display: none;
  }

  .hud-btn {
    padding: 8px;
  }

  .main-stage {
    padding: 16px 12px 24px;
  }

  .cyber-card {
    padding: 24px 18px 18px;
  }

  .identity-section {
    flex-direction: column;
    text-align: center;
    gap: 14px;
  }

  .identity-content {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .main-title {
    justify-content: center;
  }

  .name-zh {
    font-size: 1.75rem;
  }

  .card-bottom-actions {
    grid-template-columns: 1fr;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
    justify-content: center;
  }
}