:root {
  --bg-body: #020409;
  --bg-panel: #030910;
  --bg-terminal: rgba(5, 12, 20, 0.85);
  --bg-prompt: rgba(12, 25, 40, 0.9);
  --fg-primary: #e2f1ff;
  --fg-accent: #4cffd7;
  --fg-muted: #6d88a6;
  --scanline: rgba(255, 255, 255, 0.025);
  --glow: 0 0 25px rgba(76, 255, 215, 0.35);
  --font-mono: 'IBM Plex Mono', 'Fira Code', 'Courier New', monospace;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-mono), monospace;
  background: radial-gradient(circle at top, #071025 0%, #01020b 60%);
  color: var(--fg-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem clamp(1rem, 4vw, 3rem) 8rem;
  gap: 2rem;
}

header {
  text-align: center;
  max-width: 960px;
  text-shadow: 0 0 8px rgba(76, 255, 215, 0.5);
}

header h1 {
  font-weight: 500;
  letter-spacing: 0.05em;
  font-size: clamp(1.5rem, 5vw, 2.5rem);
}

header p {
  color: var(--fg-muted);
  margin: 0.2rem 0;
}

.container {
  width: min(960px, 100%);
  background: var(--bg-panel);
  border: 2px solid rgba(76, 255, 215, 0.3);
  border-radius: 20px;
  padding: clamp(1rem, 3vw, 2.5rem);
  box-shadow:
    var(--glow),
    inset 0 0 60px rgba(76, 255, 215, 0.08);
  position: relative;
  overflow: hidden;
}

.container::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(76, 255, 215, 0.03) 2px,
      rgba(76, 255, 215, 0.03) 4px
    );
  pointer-events: none;
  z-index: 10;
}

.crt-screen {
  position: relative;
  background: var(--bg-terminal);
  padding: clamp(1rem, 3vw, 2rem);
  border-radius: 16px;
  border: 1px solid rgba(76, 255, 215, 0.4);
  box-shadow:
    inset 0 0 60px rgba(1, 10, 15, 0.95),
    inset 0 0 20px rgba(76, 255, 215, 0.15);
  filter: contrast(1.1) brightness(1.05);
}

.scanlines,
.screen-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: 16px;
  z-index: 5;
}

.scanlines {
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent 0px,
      rgba(255, 255, 255, 0.03) 1px,
      transparent 2px,
      transparent 4px
    );
  animation: scanline-move 8s linear infinite;
  opacity: 0.7;
}

.scanlines::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(76, 255, 215, 0.05) 50%,
    transparent 100%
  );
  animation: scan-vertical 4s linear infinite;
}

@keyframes scanline-move {
  0%, 100% {
    transform: translateY(0);
    opacity: 0.7;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes scan-vertical {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100%); }
}

.screen-glow {
  background: radial-gradient(
    ellipse at center,
    rgba(76, 255, 215, 0.12),
    transparent 65%
  );
  animation: glow-pulse 3s ease-in-out infinite;
}

@keyframes glow-pulse {
  0%, 100% { opacity: 0.8; }
  50% { opacity: 1; }
}

.header {
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(76, 255, 215, 0.3);
  padding-bottom: 1rem;
  margin-bottom: 1rem;
  text-shadow: 0 0 6px rgba(76, 255, 215, 0.4);
}

.header-content {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.terminal-icon {
  width: 48px;
  height: 48px;
  color: var(--fg-accent);
  flex-shrink: 0;
  filter: drop-shadow(0 0 8px rgba(76, 255, 215, 0.6));
}

.header h1 {
  margin: 0;
  font-size: clamp(1.2rem, 4vw, 1.6rem);
  letter-spacing: 0.1em;
}

.header p {
  margin: 0;
  color: var(--fg-muted);
}

.terminal-content {
  min-height: 320px;
  max-height: 480px;
  overflow-y: auto;
  font-size: 0.95rem;
  line-height: 1.6;
  padding-right: 0.5rem;
  text-shadow: 0 0 3px rgba(226, 241, 255, 0.3);
}

/* Visualiseur audio 3D */
.visualizer-container {
  width: 100%;
  height: 280px;
  margin: 1rem 0;
  border-radius: 12px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(5, 12, 20, 0.9), rgba(12, 25, 40, 0.8));
  border: 1px solid rgba(76, 255, 215, 0.3);
  box-shadow:
    0 0 20px rgba(76, 255, 215, 0.2),
    inset 0 0 30px rgba(76, 255, 215, 0.05);
  position: relative;
  /*display: none; /* Caché par défaut */
}

.visualizer-container canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}

.visualizer-container::before {
  content: 'AUDIO VISUALIZER';
  position: absolute;
  top: 8px;
  left: 12px;
  font-size: 0.7rem;
  color: var(--fg-accent);
  opacity: 0.6;
  letter-spacing: 0.1em;
  z-index: 1;
  pointer-events: none;
  text-shadow: 0 0 8px rgba(76, 255, 215, 0.6);
}

.terminal-content::-webkit-scrollbar {
  width: 8px;
}

.terminal-content::-webkit-scrollbar-track {
  background: rgba(76, 255, 215, 0.05);
  border-radius: 4px;
}

.terminal-content::-webkit-scrollbar-thumb {
  background: rgba(76, 255, 215, 0.4);
  border-radius: 4px;
  box-shadow: inset 0 0 4px rgba(76, 255, 215, 0.5);
}

.terminal-line {
  margin: 0.35rem 0;
  white-space: pre-wrap;
  animation: text-flicker 0.1s ease-in;
}

@keyframes text-flicker {
  0% { opacity: 0.8; }
  100% { opacity: 1; }
}

.terminal-line.info {
  color: var(--fg-accent);
  text-shadow: 0 0 6px rgba(76, 255, 215, 0.5);
}

.terminal-line.error {
  color: #ff6b6b;
  text-shadow: 0 0 6px rgba(255, 107, 107, 0.5);
}

.terminal-line.success {
  color: #51cf66;
  text-shadow: 0 0 6px rgba(81, 207, 102, 0.5);
}

.prompt-text {
  color: var(--fg-accent);
  text-shadow: 0 0 5px rgba(76, 255, 215, 0.6);
}

.input-area {
  margin-top: 1.5rem;
  background: var(--bg-prompt);
  border-radius: 12px;
  border: 1px solid rgba(76, 255, 215, 0.4);
  display: flex;
  align-items: center;
  padding: 0.6rem 1rem;
  gap: 0.5rem;
  box-shadow:
    0 0 15px rgba(76, 255, 215, 0.15),
    inset 0 0 20px rgba(76, 255, 215, 0.05);
}

.prompt {
  color: var(--fg-accent);
  font-weight: 500;
  text-shadow: 0 0 8px rgba(76, 255, 215, 0.7);
  animation: cursor-blink 1.2s infinite;
}

@keyframes cursor-blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0.6; }
}

.command-input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--fg-primary);
  font-family: var(--font-mono), monospace;
  font-size: 1rem;
  outline: none;
  caret-color: var(--fg-accent);
  text-shadow: 0 0 4px rgba(226, 241, 255, 0.3);
}

.command-input::placeholder {
  color: rgba(226, 241, 255, 0.4);
}

.command-input.busy {
  opacity: 0.4;
  cursor: wait;
}

.quick-commands {
  margin-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.quick-btn {
  border: 1px solid rgba(76, 255, 215, 0.5);
  background: rgba(76, 255, 215, 0.05);
  color: var(--fg-primary);
  font-family: var(--font-mono), monospace;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.9rem;
  text-shadow: 0 0 4px rgba(226, 241, 255, 0.3);
  box-shadow: 0 0 8px rgba(76, 255, 215, 0.2);
}

.quick-btn:hover {
  background: rgba(76, 255, 215, 0.15);
  box-shadow:
    0 0 15px rgba(76, 255, 215, 0.4),
    inset 0 0 10px rgba(76, 255, 215, 0.1);
  transform: translateY(-1px);
  border-color: rgba(76, 255, 215, 0.7);
}

.footer {
  margin-top: 1.5rem;
  text-align: center;
  color: var(--fg-muted);
  font-size: 0.9rem;
  text-shadow: 0 0 4px rgba(109, 136, 166, 0.3);
}

.footer-small {
  font-size: 0.8rem;
}

footer#nos-sponsors {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  width: 100%;
  background: rgba(2, 4, 9, 0.98);
  border-top: 2px solid rgba(76, 255, 215, 0.3);
  color: var(--fg-primary);
  padding: 1.5rem clamp(1rem, 3vw, 3rem);
  backdrop-filter: blur(12px);
  box-shadow: 0 -4px 30px rgba(76, 255, 215, 0.15);
}

#nos-sponsors h2 {
  margin: 0 0 0.5rem 0;
  font-size: 1.2rem;
  color: var(--fg-accent);
  text-shadow: 0 0 8px rgba(76, 255, 215, 0.5);
}

#nos-sponsors span {
  color: var(--fg-muted);
  font-size: 0.9rem;
}

#nos-sponsors ul {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
}

#nos-sponsors li {
  width: min(180px, 28vw);
  aspect-ratio: 3/1;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(76, 255, 215, 0.3);
  border-radius: 10px;
  backdrop-filter: blur(8px);
  transition: all 0.2s ease;
  box-shadow: 0 0 10px rgba(76, 255, 215, 0.1);
}

#nos-sponsors li:hover {
  transform: translateY(-2px);
  border-color: rgba(76, 255, 215, 0.5);
  box-shadow: 0 0 20px rgba(76, 255, 215, 0.25);
}

#nos-sponsors a {
  width: 100%;
  height: 100%;
  display: block;
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  transition: filter 0.2s ease;
  filter: grayscale(0.2) brightness(1.1);
}

#nos-sponsors a:hover {
  filter: grayscale(0) brightness(1.2) drop-shadow(0 0 8px rgba(76, 255, 215, 0.3));
}

#nos-sponsors a span {
  opacity: 0;
}

/* Styles pour le lecteur de musique */
.music-controls {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 0.6rem;
  justify-content: center;
}

.music-btn {
  width: 44px;
  height: 36px;
  background: linear-gradient(180deg, rgba(76,255,215,0.06), rgba(76,255,215,0.02));
  border: 1px solid rgba(76,255,215,0.35);
  color: var(--fg-accent);
  font-size: 1.05rem;
  border-radius: 8px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(2,4,9,0.6), 0 0 10px rgba(76,255,215,0.08);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
  font-family: var(--font-mono), monospace;
}

.music-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 14px rgba(2,4,9,0.6), 0 0 18px rgba(76,255,215,0.18); }

.music-btn.muted {
  opacity: 0.6;
  filter: grayscale(0.5);
}

.music-vol {
  width: 160px;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--fg-accent) 0%, rgba(76,255,215,0.25) 100%);
  outline: none;
}

.music-vol::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--fg-accent);
  box-shadow: 0 0 8px rgba(76,255,215,0.6);
  border: 2px solid rgba(2,4,9,0.8);
}

.music-vol::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--fg-accent);
  border: 2px solid rgba(2,4,9,0.8);
}

/* Petit style pour indiquer lecture forcée/silencieuse */
.music-status {
  font-size: 0.8rem;
  color: var(--fg-muted);
  margin-left: 0.4rem;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

@media screen and (max-width: 768px) {
  body {
    padding: 1rem 1rem 10rem;
  }

  .terminal-content {
    max-height: 300px;
  }

  .quick-commands {
    gap: 0.4rem;
  }

  .quick-btn {
    padding: 0.3rem 0.7rem;
    font-size: 0.85rem;
  }
}

/* Overlay invitant l'utilisateur à activer le son si l'autoplay est bloqué */
.audio-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, rgba(1,2,4,0.6), rgba(1,2,4,0.85));
  z-index: 1000;
  color: var(--fg-primary);
  backdrop-filter: blur(6px);
  padding: 1rem;
}

.audio-overlay .panel {
  background: rgba(2,4,9,0.9);
  border: 1px solid rgba(76,255,215,0.18);
  padding: 1rem 1.2rem;
  border-radius: 12px;
  text-align: center;
  box-shadow: var(--glow);
}

.audio-overlay button {
  margin-top: 0.8rem;
  padding: 0.45rem 0.9rem;
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(76,255,215,0.08), rgba(76,255,215,0.02));
  border: 1px solid rgba(76,255,215,0.35);
  color: var(--fg-accent);
  cursor: pointer;
}