body,
html {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: transparent;
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
  transition: background-color 0.4s ease;
}

#loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: #ffffff;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  transition:
    opacity 0.5s ease,
    visibility 0.5s;
}

#loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
}

.loading-content {
  width: 300px;
  text-align: center;
}

#progress-container {
  width: 100%;
  height: 8px;
  background: #f2f2f7;
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 12px;
}

#progress-bar {
  width: 0%;
  height: 100%;
  background: #007aff;
  transition: width 0.3s ease;
}

#loading-text {
  font-size: 14px;
  font-weight: 600;
  color: #86868b;
}

#live2d-canvas {
  display: block;
  width: 100vw;
  height: 100vh;
}

#extra-btn {
  position: absolute;
  bottom: 30px;
  left: 30px;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  color: #333;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  z-index: 10;
}

#extra-btn:hover {
  background: rgba(255, 255, 255, 0.4);
  transform: scale(1.05);
}

#extra-btn.hidden {
  transform: translateX(-200%);
  opacity: 0;
  pointer-events: none;
}

#sidebar {
  position: absolute;
  top: 20px;
  left: -350px;
  width: 300px;
  height: calc(100vh - 40px);
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 24px;
  box-shadow: 10px 10px 30px rgba(0, 0, 0, 0.05);
  transition:
    left 0.4s cubic-bezier(0.16, 1, 0.3, 1),
    background 0.4s ease;
  padding: 24px;
  box-sizing: border-box;
  z-index: 20;
  overflow-y: auto;
  -ms-overflow-style: none;
  scrollbar-width: none;
  display: flex;
  flex-direction: column;
}

#sidebar::-webkit-scrollbar {
  display: none;
}

#sidebar.visible {
  left: 20px;
}

#sidebar h2 {
  margin-top: 0;
  font-size: 24px;
  font-weight: 700;
  color: #1d1d1f;
  letter-spacing: -0.5px;
  line-height: 32px;
}

#close-btn {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 32px;
  height: 32px;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: none;
  border-radius: 50%;
  background-color: #f5f5f7;
  color: #1d1d1f;
  font-size: 16px;
  font-weight: 600;
  transition: all 0.2s ease;
  z-index: 10;
}

#close-btn:hover {
  background-color: #e8e8ed;
}

.dropdown {
  margin-top: 15px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 16px;
  padding: 15px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

summary {
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  color: #1d1d1f;
  outline: none;
  user-select: none;
  list-style: none;
  position: relative;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: "›";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  color: #86868b;
  transition: transform 0.3s ease;
}

details[open] summary::after {
  transform: translateY(-50%) rotate(90deg);
}

details[open] .button-list {
  animation: slideDownFade 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes slideDownFade {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.button-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 15px;
}

.action-btn {
  padding: 10px 14px;
  border: none;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.04);
  color: #1d1d1f;
  cursor: pointer;
  font-size: 14px;
  transition: background 0.2s;
  text-align: left;
  font-weight: 500;
}

.action-btn:hover {
  background: rgba(0, 0, 0, 0.08);
}

.reset-style {
  width: 100%;
  margin-top: 10px;
  background: rgba(255, 69, 58, 0.1);
  color: #ff453a;
  border: 1px solid rgba(255, 69, 58, 0.2);
  font-weight: 600;
  text-align: center;
}

.reset-style:hover {
  background: rgba(255, 69, 58, 0.2);
}

.settings-group {
  margin-top: 30px;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  padding-top: 20px;
  padding-bottom: 20px;
}

.toggle-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
  font-weight: 600;
  font-size: 15px;
  color: #1d1d1f;
}

.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #e5e5ea;
  transition: 0.4s;
  border-radius: 24px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 2px;
  bottom: 2px;
  background-color: white;
  transition: 0.4s;
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

input:checked + .slider {
  background-color: #34c759;
}

input:checked + .slider:before {
  transform: translateX(20px);
}

.bg-info-box {
  display: none;
  justify-content: space-between;
  align-items: center;
  background: rgba(0, 0, 0, 0.04);
  padding: 8px 12px;
  border-radius: 10px;
  margin-top: 8px;
}

.bg-file-name {
  font-size: 13px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 85%;
  color: #1d1d1f;
  font-weight: 500;
}

.bg-remove-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: #ff453a;
  font-weight: 700;
  font-size: 18px;
  padding: 0 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s;
}

.bg-remove-btn:hover {
  transform: scale(1.2);
}

#adjust-ui {
  position: absolute;
  bottom: 30px;
  left: 30px;
  display: flex;
  gap: 15px;
  z-index: 30;
  transition: all 0.3s ease;
}

#adjust-ui.hidden {
  transform: translateX(-200%);
  opacity: 0;
  pointer-events: none;
}

.adj-btn {
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 700;
  border-radius: 30px;
  cursor: pointer;
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  transition:
    transform 0.2s,
    background 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.adj-btn:hover {
  transform: scale(1.05);
}

.adj-btn.save {
  background: rgba(52, 199, 89, 0.9);
  color: white;
  border: 1px solid rgba(52, 199, 89, 1);
  box-shadow: 0 4px 15px rgba(52, 199, 89, 0.3);
}

.adj-btn.cancel {
  background: rgba(255, 69, 58, 0.9);
  color: white;
  border: 1px solid rgba(255, 69, 58, 1);
  box-shadow: 0 4px 15px rgba(255, 69, 58, 0.3);
}

.adj-btn.reset {
  background: rgba(255, 255, 255, 0.1);
  color: #ff453a;
  border: 2px solid #ff453a;
}

#calibration-ui {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 40;
  pointer-events: none;
  transition: opacity 0.4s;
}

#calibration-ui.hidden-fade {
  opacity: 0;
  pointer-events: none;
}

#head-hitbox {
  position: absolute;
  background: rgba(255, 255, 0, 0.2);
  border: 2px dashed #ffd700;
  border-radius: 12px;
  cursor: move;
  pointer-events: auto;
  min-width: 50px;
  min-height: 50px;
}

#hitbox-resize-handle {
  position: absolute;
  bottom: -15px;
  right: -15px;
  width: 32px;
  height: 32px;
  background: #34c759;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: nwse-resize;
  color: white;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

#hitbox-resize-handle svg {
  width: 18px;
  height: 18px;
  transform: rotate(0deg);
}

#calib-controls {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 15px 25px;
  border-radius: 16px;
  text-align: center;
  pointer-events: auto;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

#calibration-line {
  position: absolute;
  left: 0;
  width: 100vw;
  height: 2px;
  background-color: #ff3b30;
  z-index: 35;
  pointer-events: none;
  transition: opacity 0.3s;
}

#calibration-line.hidden-fade {
  opacity: 0;
}

.calib-handle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 32px;
  height: 32px;
  background: #ff3b30;
  border-radius: 50%;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  pointer-events: auto;
  cursor: ns-resize;
  box-shadow: 0 4px 10px rgba(255, 59, 48, 0.4);
}

body.dark-mode {
  background-color: #1a1a1a;
}

body.dark-mode #loading-screen {
  background: #1a1a1a;
}

body.dark-mode #loading-text {
  color: #f5f5f7;
}

body.dark-mode #progress-container {
  background: #333;
}

body.dark-mode #sidebar {
  background: rgba(30, 30, 30, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

body.dark-mode #sidebar h2,
body.dark-mode .toggle-row,
body.dark-mode summary {
  color: #f5f5f7;
}

body.dark-mode #sidebar p {
  color: #a1a1a6;
}

body.dark-mode .settings-group {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

body.dark-mode .action-btn {
  background: rgba(255, 255, 255, 0.1);
  color: #f5f5f7;
}

body.dark-mode .action-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

body.dark-mode .dropdown {
  background: rgba(0, 0, 0, 0.4);
}

body.dark-mode #close-btn {
  background-color: #333;
  color: white;
}

body.dark-mode #close-btn:hover {
  background-color: #444;
}

body.dark-mode #extra-btn {
  background: rgba(30, 30, 30, 0.5);
  color: #f5f5f7;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

body.dark-mode #extra-btn:hover {
  background: rgba(30, 30, 30, 0.8);
}

body.dark-mode .reset-style {
  background: rgba(220, 20, 60, 0.15);
  color: #ff4d4d;
  border: 1px solid rgba(220, 20, 60, 0.3);
}

body.dark-mode .reset-style:hover {
  background: rgba(220, 20, 60, 0.3);
}

body.dark-mode .bg-info-box {
  background: rgba(255, 255, 255, 0.1);
}

body.dark-mode .bg-file-name {
  color: #f5f5f7;
}

body.dark-mode #adjust-btn {
  background: rgba(10, 132, 255, 0.15) !important;
  color: #5e5ce6 !important;
  border: 1px solid rgba(10, 132, 255, 0.3) !important;
}

body.dark-mode #adjust-btn:hover {
  background: rgba(10, 132, 255, 0.25) !important;
}

body.dark-mode #calib-controls {
  background: rgba(30, 30, 30, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

body.dark-mode #calib-controls p {
  color: #f5f5f7 !important;
}