/* DARK MODE SWITCH */
.dark-mode-toggle {
  cursor: pointer;
  position: absolute;
  top: 100px;
  right: 150px;
  border: 2px solid #ffffff;
  border-radius: 50%;
  background: transparent;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}
.dark-mode-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: scale(1.05);
}
body:not(.dark) .dark-mode-toggle {
  border-color: #000000;
}
body:not(.dark) .dark-mode-toggle:hover {
  background: rgba(0, 0, 0, 0.05);
}
body:not(.user-is-tabbing) .dark-mode-toggle:focus {
  outline: none;
}
.dark-mode-toggle .moon {
  padding: 0;
}
.dark-mode-toggle .sun {
  padding: 0;
}
body .dark-mode-toggle .moon {
  display: none;
}
body .dark-mode-toggle .sun {
  display: inline-block;
}
body.dark .dark-mode-toggle .moon {
  display: inline-block;
}
body.dark .dark-mode-toggle .sun {
  display: none;
}

/* Switch - Modern Toggle Design */
.switch-toggle {
  position: relative;
  display: inline-block;
  margin-top: 6px;
  cursor: pointer;
  width: 54px;
  height: 28px;
  border-radius: 34px;
  background: linear-gradient(145deg, #1a1a2e, #0f0f23);
  border: 2px solid #3d3d5c;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.3);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.switch-toggle:hover {
  border-color: #5a5a7a;
}

.switch-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.switch-toggle div {
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  top: 2px;
  left: 3px;
  background: linear-gradient(145deg, #4a4a6a, #3a3a5a);
  box-shadow: 0 2px 6px rgba(0,0,0,0.4);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.switch-toggle input:checked + div {
  left: 27px;
  background: linear-gradient(145deg, #c4b5fd, #a78bfa);
  box-shadow: 0 0 12px rgba(167, 139, 250, 0.6),
              0 2px 6px rgba(0,0,0,0.4);
}

.switch-toggle input:checked ~ div {
  left: 27px;
}

.switch-toggle:has(input:checked) {
  background: linear-gradient(145deg, #2d2550, #1f1a3d);
  border-color: #a78bfa;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.3),
              0 0 8px rgba(167, 139, 250, 0.3);
}

.switch-toggle input:focus + div {
  outline: none;
  box-shadow: 0 0 0 3px rgba(167, 139, 250, 0.2);
}

.switch-toggle.outer div {
  width: 20px;
  height: 20px;
  top: 2px;
  left: 3px;
}

@media (max-width: 768px) {
  .dark-mode-toggle {
    right: 10px;
    top: 70px;
  }
  
  /* Drawing canvas mobile optimization */
  .popup-container {
    padding: 10px;
  }
  
  .popup-container .close-button {
    padding: 15px 20px;
    font-size: 35pt;
    top: 5px;
    right: 5px;
  }
  
  #diagram-canvas {
    width: 100% !important;
    height: auto !important;
    max-width: 100%;
    touch-action: none; /* Better touch handling */
  }
  
  .drawing-tools-panel {
    width: 100% !important;
    min-width: unset !important;
    padding: 15px;
    margin-top: 15px;
  }
  
  .drawing-tools-panel h3 {
    font-size: 1.1rem;
    margin-top: 0;
    margin-bottom: 15px;
  }
  
  .tool-btn {
    padding: 10px 6px;
    font-size: 0.8rem;
  }
  
  .drawing-tools-panel button {
    padding: 12px;
    font-size: 0.95rem;
    width: 100%;
  }
  
  .drawing-tools-panel input[type="color"] {
    height: 45px;
  }
  
  .drawing-tools-panel input[type="range"] {
    height: 8px;
  }
  
  .drawing-tools-panel input[type="range"]::-webkit-slider-thumb {
    width: 22px;
    height: 22px;
  }
  
  .drawing-tools-panel input[type="range"]::-moz-range-thumb {
    width: 22px;
    height: 22px;
  }
  
  /* Switch toggle mobile */
  .switch-toggle {
    width: 50px;
    height: 26px;
  }
  
  .switch-toggle div {
    width: 18px;
    height: 18px;
  }
  
  .switch-toggle input:checked + div {
    left: 24px;
  }
}

/* Small phones */
@media (max-width: 480px) {
  .dark-mode-toggle {
    width: 45px;
    height: 45px;
    top: 60px;
  }
  
  .dark-mode-toggle img {
    width: 28px !important;
  }
  
  .popup-container .close-button {
    font-size: 30pt;
    padding: 10px 15px;
  }
  
  .drawing-tools-panel {
    padding: 12px;
  }
  
  .tool-btn {
    padding: 8px 4px;
    font-size: 0.75rem;
  }
  
  .drawing-tools-panel h3 {
    font-size: 1rem;
  }
}

/* Landscape mode */
@media (max-height: 500px) and (orientation: landscape) {
  .dark-mode-toggle {
    top: 50px;
    width: 40px;
    height: 40px;
  }
  
  .popup-container {
    padding: 5px;
  }
  
  .popup-container .close-button {
    padding: 10px 15px;
    font-size: 28pt;
  }
  
  .draw-container h2 {
    margin: 10px;
    font-size: 1.2rem;
  }
  
  .draw-container .display-flex.responsive-flex {
    padding: 0 10px 10px 10px;
  }
  
  #diagram-canvas {
    max-height: 280px;
  }
  
  .drawing-tools-panel {
    padding: 10px;
  }
}

/* POPUP, DRAW AND PDF-PREVIEW  */
.popup-container {
  position: fixed;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background-color: #000;
  z-index: 999999;
  color: #ddd;
  padding: 20px;
  display: none;
  overflow-y: auto;
}

.popup-container.show {
  display: block;
}

.popup-container .close-button {
  position: fixed;
  top: 0px;
  right: 0px;
  padding: 20px 30px;
  cursor: pointer;
  color: #ddd;
  background-color: transparent;
  border: none;
  font-size: 50pt;
  font-weight: bold;
}

.popup-container .close-button:hover {
  color: #fff;
  transition: color 0.5s ease;
}

#diagram-canvas {
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  cursor: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 32 32"><text y="28" font-size="28">✍️</text></svg>') 4 28, crosshair;
}

.tool-btn {
  padding: 8px 4px;
  font-size: 0.85rem;
  background: #2d2d44;
  color: #e0e0e0;
  border: 2px solid #3d3d5c;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.tool-btn:hover {
  background: #3d3d5c;
  border-color: #a78bfa;
}

.tool-btn.active {
  background: #a78bfa;
  color: #0f0f23;
  border-color: #a78bfa;
  font-weight: 600;
}

.drawing-tools-panel input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  background: #2d2d44;
  border-radius: 3px;
  outline: none;
}

.drawing-tools-panel input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  background: #a78bfa;
  border-radius: 50%;
  cursor: pointer;
}

.drawing-tools-panel input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  background: #a78bfa;
  border-radius: 50%;
  cursor: pointer;
  border: none;
}

.drawing-tools-panel button {
  padding: 10px;
  border-radius: 6px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.drawing-tools-panel button:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.contributor-profile {
  display: inline-block;
  margin: 10px 5px;
  text-align: center;
  background-color: var(--elevation-background);
  color: var(--font-color-primary);
  padding: 10px;
  width: 130px;
  overflow: hidden;
  border-radius: 4px;
  height: 170px;
  box-shadow: 4px 3px 16px -3px #0009;
}

img.contributor-avatar {
  width: 100%;
}

.contributor-profile a {
  text-decoration: none;
  color: var(--font-color-primary);
  font-weight: bold;
  display: block;
  font-size: 10pt;
}

.contributor-username {
  margin-top: 7px;
}