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

body {
  font-family: 'Courier New', Courier, monospace;
  background: #1c1c1f;
  color: #f9f9fe;
  overflow: hidden;
  width: 100vw;
  width: 100dvw;
  height: 100vh;
  height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  /* Respect iOS safe areas */
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

#canvas-container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

#ui-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 100;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

#edition-label {
  position: absolute;
  bottom: 4%;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  letter-spacing: 1.2px;
  opacity: 0.65;
  text-transform: uppercase;
  pointer-events: none;
  transition: opacity 0.8s ease;
}

#timestamp-label {
  position: absolute;
  top: 4%;
  right: 4%;
  font-size: 10px;
  letter-spacing: 1px;
  opacity: 0.5;
  pointer-events: none;
  transition: opacity 0.8s ease;
}

#download-btn {
  position: absolute;
  bottom: 6%;
  left: 50%;
  transform: translateX(-50%);
  padding: 12px 24px;
  background: transparent;
  border: 1px solid #9381ff;
  color: #9381ff;
  font-family: 'Courier New', Courier, monospace;
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  cursor: pointer;
  pointer-events: auto;
  transition: all 0.3s ease;
  opacity: 0;
}

#download-btn:hover {
  background: #9381ff;
  color: #1c1c1f;
}

#download-btn:active {
  transform: translateX(-50%) scale(0.98);
}

.hidden {
  opacity: 0 !important;
  pointer-events: none !important;
}

canvas {
  display: block;
}

/* Welcome Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(28, 28, 31, 0.98);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 1;
  transition: opacity 0.8s ease;
}

.modal-overlay.fade-out {
  opacity: 0;
  pointer-events: none;
}

.modal-content {
  max-width: 600px;
  padding: 60px 40px;
  text-align: center;
  animation: fadeIn 1.2s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-title {
  font-family: 'Courier New', Courier, monospace;
  font-size: 28px;
  font-weight: bold;
  letter-spacing: 2px;
  margin-bottom: 40px;
  color: #f9f9fe;
  text-transform: lowercase;
}

.modal-text {
  font-family: 'Courier New', Courier, monospace;
  font-size: 14px;
  line-height: 1.8;
  color: #f9f9fe;
  opacity: 0.9;
  margin-bottom: 50px;
}

.modal-text p {
  margin-bottom: 24px;
}

.modal-text p:last-child {
  margin-bottom: 0;
}

.modal-button {
  padding: 14px 36px;
  background: transparent;
  border: 1px solid #9381ff;
  color: #9381ff;
  font-family: 'Courier New', Courier, monospace;
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.3s ease;
}

.modal-button:hover {
  background: #9381ff;
  color: #1c1c1f;
}

.modal-button:active {
  transform: scale(0.98);
}

/* Mobile Modal Specific Styles */
.mobile-modal-content {
  max-width: 500px;
  padding: 40px 30px;
}

.mobile-url {
  font-size: 12px;
  margin-top: 30px;
  opacity: 0.7;
}

.url-text {
  color: #9381ff;
  font-weight: bold;
}

.modal-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.modal-button-secondary {
  background: transparent;
  border: 1px solid rgba(147, 129, 255, 0.5);
  color: rgba(147, 129, 255, 0.7);
}

.modal-button-secondary:hover {
  background: rgba(147, 129, 255, 0.1);
  color: #9381ff;
}

/* Mobile-specific responsive adjustments */
@media (max-width: 768px) {
  .modal-content {
    max-width: 90%;
    padding: 40px 24px;
  }

  .modal-title {
    font-size: 22px;
    margin-bottom: 30px;
  }

  .modal-text {
    font-size: 13px;
    line-height: 1.7;
    margin-bottom: 40px;
  }

  .modal-text p {
    margin-bottom: 20px;
  }

  .modal-button {
    padding: 12px 28px;
    font-size: 11px;
  }

  #edition-label {
    font-size: 10px;
    bottom: 5%;
  }

  #timestamp-label {
    font-size: 9px;
    top: 5%;
    right: 5%;
  }

  #download-btn {
    bottom: 8%;
    padding: 10px 20px;
    font-size: 10px;
  }
}

@media (max-width: 480px) {
  .modal-content {
    padding: 30px 20px;
  }

  .modal-title {
    font-size: 20px;
    letter-spacing: 1.5px;
  }

  .modal-text {
    font-size: 12px;
    line-height: 1.6;
  }

  .modal-button {
    padding: 10px 24px;
    font-size: 10px;
    letter-spacing: 1.5px;
  }

  .modal-buttons {
    flex-direction: column;
    gap: 12px;
  }

  .modal-buttons .modal-button {
    width: 100%;
    max-width: 240px;
  }
}