:root {
  --b3d-fx-accent: var(--accent, #00ff9f);
  --b3d-fx-bg: var(--bg, #0b0b0b);
}

.b3d-particle-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.b3d-particle-canvas {
  z-index: 850;
}

.b3d-glitch {
  position: relative;
  display: inline-block;
  isolation: isolate;
}

.b3d-glitch::before,
.b3d-glitch::after {
  content: attr(data-glitch);
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

.b3d-glitch.is-glitching::before {
  color: #ff4057;
  opacity: .72;
  animation: b3d-glitch-red .3s steps(2, end);
  clip-path: inset(12% 0 54% 0);
}

.b3d-glitch.is-glitching::after {
  color: #00e5ff;
  opacity: .72;
  animation: b3d-glitch-blue .3s steps(2, end);
  clip-path: inset(58% 0 12% 0);
}

.b3d-tooltip {
  position: fixed;
  z-index: 2147482000;
  max-width: min(290px, calc(100vw - 24px));
  padding: 9px 12px;
  border: 1px solid var(--b3d-fx-accent);
  border-radius: 3px;
  background: rgba(7, 10, 9, .96);
  color: #e9fff6;
  font: 1rem/1.25 'VT323', 'Courier New', monospace;
  letter-spacing: .025em;
  box-shadow:
    4px 4px 0 rgba(0, 0, 0, .65),
    inset 0 0 18px color-mix(in srgb, var(--b3d-fx-accent) 7%, transparent);
  opacity: 0;
  transform: translateY(5px);
  visibility: hidden;
  pointer-events: none;
  transition: opacity .12s ease, transform .12s ease, visibility .12s;
}

.b3d-tooltip::before {
  content: 'INFO';
  display: block;
  margin-bottom: 4px;
  color: var(--b3d-fx-accent);
  font-size: .72em;
  letter-spacing: .16em;
}

.b3d-tooltip.is-visible {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
}

/* Retired legacy site-wide background music controls. */
#musicBtn,
.floating-music-btn {
  display: none !important;
}

/* Achievement system */
.b3d-achievement-stack {
  position: fixed;
  top: 76px;
  right: 18px;
  z-index: 2147482500;
  display: grid;
  width: min(360px, calc(100vw - 28px));
  gap: 10px;
  pointer-events: none;
}

.b3d-achievement {
  position: relative;
  overflow: hidden;
  padding: 14px 16px 14px 54px;
  border: 1px solid #ffd166;
  border-radius: 5px;
  background: rgba(9, 10, 9, .96);
  color: #eee;
  font: 1rem/1.25 'VT323', 'Courier New', monospace;
  box-shadow: 5px 5px 0 rgba(0, 0, 0, .62), 0 0 22px rgba(255, 209, 102, .12);
  opacity: 0;
  transform: translateX(28px);
  transition: opacity .22s steps(3, end), transform .22s steps(3, end);
}

.b3d-achievement::before {
  content: '★';
  position: absolute;
  left: 15px;
  top: 50%;
  color: #ffd166;
  font-size: 1.75rem;
  transform: translateY(-50%);
  text-shadow: 0 0 13px rgba(255, 209, 102, .5);
}

.b3d-achievement::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: #ffd166;
  transform-origin: left;
  animation: b3d-achievement-timer 3.8s linear forwards;
}

.b3d-achievement.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.b3d-achievement-label {
  display: block;
  margin-bottom: 2px;
  color: #ffd166;
  font-size: .78rem;
  letter-spacing: .14em;
}

.b3d-achievement-title {
  display: block;
  color: #fff;
  font-size: 1.25rem;
  letter-spacing: .04em;
}

.b3d-achievement-copy {
  display: block;
  margin-top: 3px;
  color: #aaa;
  font-size: .94rem;
}

/* Ambient footer secrets */
footer.b3d-ambient-footer {
  position: relative;
  overflow: hidden;
}

.b3d-fireflies {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.b3d-firefly {
  position: absolute;
  left: var(--x);
  bottom: var(--y);
  width: 3px;
  height: 3px;
  background: #d8ff8c;
  box-shadow: 0 0 8px 2px rgba(216, 255, 140, .52);
  opacity: 0;
  animation: b3d-firefly-drift var(--duration) ease-in-out var(--delay) infinite;
}

.b3d-footer-bot,
.b3d-secret-door {
  position: absolute;
  z-index: 3;
  border: 0;
  cursor: pointer;
}

.b3d-footer-bot {
  left: -34px;
  bottom: 8px;
  width: 22px;
  height: 24px;
  padding: 0;
  background: transparent;
  color: #8b958f;
  animation: b3d-bot-walk 30s linear 5s infinite;
}

.b3d-footer-bot::before {
  content: '• •';
  display: block;
  width: 18px;
  height: 14px;
  border: 2px solid currentColor;
  background: #111;
  color: var(--b3d-fx-accent);
  font: 9px/8px monospace;
  letter-spacing: 1px;
  box-shadow: inset 0 -3px #323a36;
}

.b3d-footer-bot::after {
  content: '┘ └';
  display: block;
  margin-top: -1px;
  color: #8b958f;
  font: 10px/8px monospace;
  white-space: pre;
}

.b3d-footer-bot:hover,
.b3d-footer-bot:focus-visible {
  color: #fff;
  filter: drop-shadow(0 0 5px var(--b3d-fx-accent));
  animation-play-state: paused;
  outline: none;
}

.b3d-secret-door {
  right: 9px;
  bottom: 7px;
  width: 13px;
  height: 21px;
  padding: 0;
  border: 1px solid #242424;
  border-bottom: 0;
  border-radius: 5px 5px 0 0;
  background: #101010;
  box-shadow: inset -3px 0 #080808;
  opacity: .38;
}

.b3d-secret-door::after {
  content: '';
  position: absolute;
  right: 2px;
  top: 10px;
  width: 2px;
  height: 2px;
  background: #777;
}

.b3d-secret-door:hover,
.b3d-secret-door:focus-visible,
.b3d-secret-door.is-open {
  border-color: var(--b3d-fx-accent);
  background: rgba(0, 255, 159, .1);
  box-shadow: 0 0 16px rgba(0, 255, 159, .3), inset 6px 0 8px rgba(0, 255, 159, .1);
  opacity: 1;
  outline: none;
}

/* Game cartridge project cards */
.projects-grid {
  perspective: 1000px;
}

.project-card.b3d-cartridge {
  position: relative;
  overflow: hidden;
  transform-style: preserve-3d;
  will-change: transform;
  border-width: 2px;
  border-radius: 14px 14px 9px 9px;
  box-shadow: inset 0 -9px 0 rgba(0, 0, 0, .17), 0 7px 18px rgba(0, 0, 0, .22);
  transition: transform .16s ease-out, border-color .2s ease, box-shadow .2s ease;
}

.project-card.b3d-cartridge::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 50%;
  width: 68px;
  height: 10px;
  border: 2px solid var(--border, #333);
  border-top: 0;
  border-radius: 0 0 8px 8px;
  background: var(--bg, #0b0b0b);
  transform: translateX(-50%) translateZ(8px);
}

.project-card.b3d-cartridge::after {
  content: '';
  position: absolute;
  left: 18%;
  right: 18%;
  bottom: 3px;
  height: 4px;
  background: repeating-linear-gradient(90deg, #9c7b2b 0 6px, transparent 6px 11px);
  opacity: .48;
}

.project-card.b3d-cartridge:hover {
  border-color: var(--b3d-fx-accent);
  transform: perspective(850px) rotateX(var(--b3d-tilt-x, 0deg)) rotateY(var(--b3d-tilt-y, 0deg)) translateY(-5px);
  box-shadow: inset 0 -9px 0 rgba(0, 0, 0, .17), 0 16px 34px rgba(0, 255, 159, .12);
}

.project-card.b3d-cartridge.is-inserting {
  z-index: 5;
  pointer-events: none;
  animation: b3d-insert-cartridge .52s steps(7, end) both;
}

.project-card.b3d-cartridge.is-inserting .btn {
  color: var(--b3d-fx-accent);
  border-color: var(--b3d-fx-accent);
}

/* Ridiculous Konami reward */
.b3d-back-to-top {
  position: fixed;
  right: 20px;
  bottom: 76px;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 9px 13px;
  border: 1px solid var(--b3d-fx-accent, #00ff9f);
  border-radius: 999px;
  background: rgba(10, 10, 12, .9);
  color: var(--b3d-fx-text, #eee);
  font: 1rem/1 'VT323', monospace;
  letter-spacing: .08em;
  cursor: pointer;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  backdrop-filter: blur(7px);
  box-shadow: 0 5px 20px rgba(0, 0, 0, .28);
  transition: opacity .2s ease, transform .2s ease, color .2s ease, box-shadow .2s ease;
}

.b3d-back-to-top > span:first-child {
  font: 1.15rem/1 system-ui, sans-serif;
}

.b3d-back-to-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.b3d-back-to-top:hover,
.b3d-back-to-top:focus-visible {
  color: var(--b3d-fx-accent, #00ff9f);
  box-shadow: 0 0 15px color-mix(in srgb, var(--b3d-fx-accent, #00ff9f) 35%, transparent);
}

.b3d-back-to-top:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 3px;
}

.b3d-tldr {
  max-width: 900px;
  margin: 0 auto 36px;
  padding: 18px 22px;
  border: 1px solid color-mix(in srgb, var(--b3d-fx-accent, #00ff9f) 55%, transparent);
  border-left-width: 4px;
  border-radius: 8px;
  background: color-mix(in srgb, var(--b3d-fx-accent, #00ff9f) 7%, rgba(12, 12, 15, .92));
  color: var(--b3d-fx-text, #ddd);
  line-height: 1.6;
}

.b3d-tldr strong:first-child {
  color: var(--b3d-fx-accent, #00ff9f);
  font-family: 'VT323', monospace;
  font-size: 1.2em;
  letter-spacing: .06em;
}

.b3d-chaos-banner {
  position: fixed;
  left: 50%;
  top: 50%;
  z-index: 2147482400;
  padding: 14px 22px;
  border: 2px solid #fff;
  background: #111;
  color: #fff;
  font: clamp(1.4rem, 4vw, 3rem)/1 'VT323', monospace;
  text-align: center;
  letter-spacing: .08em;
  box-shadow: 8px 8px 0 #ff4057, -8px -8px 0 #00e5ff;
  transform: translate(-50%, -50%) rotate(-2deg);
  animation: b3d-chaos-banner .7s steps(5, end) both;
  pointer-events: none;
}

.b3d-chaos-mode body {
  animation: b3d-debug-disco 2.8s steps(8, end) infinite;
}

.b3d-chaos-bot {
  position: fixed;
  top: -35px;
  z-index: 2147481500;
  color: var(--b3d-fx-accent);
  font: 24px monospace;
  text-shadow: 0 0 9px currentColor;
  pointer-events: none;
  animation: b3d-bot-rain 3.5s linear var(--delay) infinite;
}

@keyframes b3d-achievement-timer {
  to { transform: scaleX(0); }
}

@keyframes b3d-firefly-drift {
  0%, 100% { opacity: 0; transform: translate(0, 7px); }
  30%, 70% { opacity: .8; }
  50% { opacity: .32; transform: translate(22px, -18px); }
}

@keyframes b3d-bot-walk {
  0%, 14% { transform: translateX(0); }
  72%, 100% { transform: translateX(calc(100vw + 55px)); }
}

@keyframes b3d-insert-cartridge {
  0% { transform: translateY(-5px) scale(1); filter: brightness(1); }
  45% { transform: translateY(14px) scale(.98); filter: brightness(1.4); }
  75% { transform: translateY(24px) scale(.95); filter: brightness(.65); }
  100% { transform: translateY(34px) scale(.92); filter: brightness(0); opacity: .15; }
}

@keyframes b3d-chaos-banner {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(.2) rotate(8deg); }
  65% { opacity: 1; transform: translate(-50%, -50%) scale(1.08) rotate(-3deg); }
  100% { opacity: 1; transform: translate(-50%, -50%) scale(1) rotate(-2deg); }
}

@keyframes b3d-debug-disco {
  0%, 100% { filter: hue-rotate(0deg); }
  50% { filter: hue-rotate(72deg); }
}

@keyframes b3d-bot-rain {
  to { transform: translateY(calc(100vh + 60px)) rotate(360deg); }
}

@keyframes b3d-glitch-red {
  0% { transform: translate(0); }
  25% { transform: translate(-3px, 1px); }
  55% { transform: translate(3px, -1px); }
  80% { transform: translate(-1px); }
  100% { transform: translate(0); opacity: 0; }
}

@keyframes b3d-glitch-blue {
  0% { transform: translate(0); }
  20% { transform: translate(3px, -1px); }
  60% { transform: translate(-2px, 1px); }
  85% { transform: translate(1px); }
  100% { transform: translate(0); opacity: 0; }
}

@media (max-width: 600px) {
  .b3d-achievement-stack {
    top: 64px;
    right: 10px;
  }

  .project-card.b3d-cartridge:hover {
    transform: translateY(-3px);
  }

  .b3d-back-to-top {
    right: 12px;
    bottom: 72px;
    padding: 9px 11px;
  }

  .b3d-tldr {
    margin-bottom: 28px;
    padding: 15px 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .b3d-particle-canvas {
    display: none !important;
  }

  .b3d-glitch.is-glitching::before,
  .b3d-glitch.is-glitching::after,
  .b3d-achievement::after,
  .b3d-firefly,
  .b3d-footer-bot,
  .project-card.b3d-cartridge.is-inserting,
  .b3d-chaos-mode body,
  .b3d-chaos-banner,
  .b3d-chaos-bot {
    animation: none !important;
  }

  .project-card.b3d-cartridge:hover {
    transform: none;
  }
}