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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: #34495e;
  padding: 0;
  margin: 0;
  overflow: hidden;
}

.container {
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  background: #34495e;
  border-radius: 0;
  box-shadow: none;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  max-height: 100dvh;
}

.toolbar {
  position: absolute;
  right: 2px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: clamp(4px, 1.2vmin, 8px);
  pointer-events: auto;
  z-index: 10;
}

.field-container {
  position: relative;
  display: flex;
  justify-content: center;
  background: #34495e;
  flex: 1;
  align-items: center;
  overflow: hidden;
  min-height: 0;
}

#field {
  border: none;
  border-radius: 0;
  cursor: crosshair;
  background: #27ae60;
  display: block;
}

.step-controller {
  display: flex;
  align-items: center;
  gap: clamp(8px, 2vmin, 16px);
  padding: clamp(6px, 1.5vmin, 12px) clamp(8px, 2vmin, 16px);
  background: #1a1a1a;
  border-top: 1px solid #000;
  order: 3;
  flex-shrink: 0;
}

.step-controls {
  display: flex;
  align-items: center;
  gap: clamp(4px, 1vmin, 8px);
  flex: 0 1 auto;
  min-width: 0;
}

.step-actions {
  display: flex;
  align-items: center;
  gap: clamp(4px, 1vmin, 8px);
  flex-shrink: 0;
  margin-left: auto;
}

.step-action-btn {
  width: clamp(32px, 5vmin, 48px);
  height: clamp(32px, 5vmin, 48px);
  border-radius: 50%;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(14px, 2vmin, 18px);
}

.step-btn {
  width: clamp(32px, 5vmin, 48px);
  height: clamp(32px, 5vmin, 48px);
  border-radius: 50%;
  border: 2px solid white;
  background: transparent;
  color: white;
  font-size: clamp(14px, 2vmin, 20px);
  font-weight: bold;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  line-height: 1;
  flex-shrink: 0;
}

.step-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: scale(1.05);
}

.step-btn:active {
  transform: scale(0.95);
}

.step-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.step-btn-play {
  padding-left: 2px;
}

.step-btn-delete {
  color: #e74c3c;
  border-color: #e74c3c;
}

.step-btn-delete:hover {
  background: rgba(231, 76, 60, 0.1);
}

.step-btn-update {
  font-size: clamp(16px, 2.5vmin, 24px);
}

.step-display {
  flex: 1;
  min-width: 0;
  max-width: clamp(100px, 20vw, 200px);
  display: flex;
  flex-direction: column;
  gap: 2px;
  align-items: center;
}

#stepInfo {
  font-size: clamp(11px, 1.5vmin, 16px);
  font-weight: bold;
  color: white;
  text-align: center;
}

#stepSlider {
  width: 100%;
  height: 4px;
  border-radius: 2px;
  outline: none;
  -webkit-appearance: none;
  background: #555;
  cursor: pointer;
}

#stepSlider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: clamp(16px, 2.5vmin, 24px);
  height: clamp(16px, 2.5vmin, 24px);
  border-radius: 50%;
  background: #f39c12;
  cursor: pointer;
  transition: all 0.2s;
}

#stepSlider::-webkit-slider-thumb:hover {
  transform: scale(1.1);
  background: #e67e22;
}

#stepSlider::-moz-range-thumb {
  width: clamp(16px, 2.5vmin, 24px);
  height: clamp(16px, 2.5vmin, 24px);
  border-radius: 50%;
  background: #f39c12;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}

#stepSlider::-moz-range-thumb:hover {
  transform: scale(1.1);
  background: #e67e22;
}

.btn {
  padding: 10px 16px;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  cursor: pointer;
  background: #000000;
  color: white;
  transition: background 0.2s;
}

.btn-icon {
  padding: clamp(4px, 0.8vmin, 8px);
  width: clamp(36px, 5.5vmin, 56px);
  height: clamp(36px, 5.5vmin, 56px);
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
}

.btn-canvas {
  display: block;
  width: clamp(28px, 4.5vmin, 44px);
  height: clamp(28px, 4.5vmin, 44px);
}

.btn-icon-img {
  width: clamp(24px, 4vmin, 40px);
  height: clamp(24px, 4vmin, 40px);
  display: block;
  object-fit: contain;
}

.btn:hover {
  background: #7f8c8d;
}

.btn:active {
  transform: translateY(1px);
}

.btn-red {
  background: transparent;
  border: none;
}

.btn-red:hover {
  background: rgba(231, 76, 60, 0.1);
}

.btn-blue {
  background: transparent;
  border: none;
}

.btn-blue:hover {
  background: rgba(52, 152, 219, 0.1);
}

.btn-ball {
  background: transparent;
  border: none;
}

.btn-ball:hover {
  background: rgba(0, 0, 0, 0.05);
}

.btn-marker {
  background: transparent;
  border: none;
}

.btn-marker:hover {
  background: rgba(155, 89, 182, 0.1);
}

.btn-comment {
  background: transparent;
  border: none;
}

.btn-comment:hover {
  background: rgba(26, 188, 156, 0.1);
}

.btn-delete-all:hover {
  background: #2c3e50;
  transform: scale(1.05);
}

.btn-delete-all {
  width: clamp(30px, 5vmin, 48px);
  height: clamp(30px, 5vmin, 48px);
  border-radius: 50%;
  background: #2c3e50;
  color: white;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.btn-delete-selected {
  background: transparent;
  border: none;
  color: #e74c3c;
  font-size: clamp(16px, 2.5vmin, 22px);
}

.btn-delete-selected:hover {
  background: rgba(231, 76, 60, 0.1);
  color: #c0392b;
}

.btn-primary {
  background: #27ae60;
}

.btn-primary:hover {
  background: #229954;
}

.btn-success {
  background: #16a085;
}

.btn-success:hover {
  background: #138d75;
}

.btn-file {
  display: inline-block;
  position: relative;
}

.help-footer {
  padding: 15px;
  background: #ecf0f1;
  border-top: 1px solid #ddd;
  text-align: center;
}

.help-footer p {
  font-size: 12px;
  color: #555;
  margin: 4px 0;
}

.help-footer strong {
  color: #2c3e50;
}

.help-footer ul {
  list-style: none;
  padding: 0;
  margin: 8px 0 0 0;
  text-align: left;
  display: inline-block;
}

.help-footer li {
  font-size: 12px;
  color: #555;
  margin: 4px 0;
  padding-left: 1em;
  text-indent: -1em;
}

.help-footer li:before {
  content: "・";
  padding-right: 0.5em;
}

.notification {
  position: fixed;
  top: 50px;
  right: 8px;
  padding: 8px 14px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
  color: white;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  opacity: 0;
  transform: translateX(100%);
  transition: all 0.3s ease;
  z-index: 1000;
  max-width: 280px;
}

.notification.show {
  opacity: 0.9;
  transform: translateX(0);
}

.notification-success {
  background: #292939;
}

.notification-error {
  background: #e74c3c;
}

.notification-info {
  background: #3498db;
}

.top-left-buttons {
  position: absolute;
  top: clamp(4px, 1vmin, 10px);
  left: clamp(4px, 1vmin, 10px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(4px, 0.8vmin, 8px);
  z-index: 999;
  pointer-events: auto;
}

.top-right-buttons {
  position: absolute;
  top: clamp(4px, 1vmin, 10px);
  right: clamp(4px, 1vmin, 10px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(4px, 0.8vmin, 8px);
  z-index: 999;
  pointer-events: auto;
}

.top-right-btn {
  width: clamp(32px, 5vmin, 48px);
  height: clamp(32px, 5vmin, 48px);
  border-radius: 50%;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.menu-button {
  width: clamp(30px, 5vmin, 48px);
  height: clamp(30px, 5vmin, 48px);
  border-radius: 50%;
  background: #2c3e50;
  color: white;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.menu-button:hover {
  background: #2980b9;
  transform: scale(1.05);
}

.menu-icon {
  width: clamp(14px, 2.5vmin, 24px);
  height: clamp(14px, 2.5vmin, 24px);
  display: block;
  object-fit: contain;
}

.menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1000;
}

.menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

.side-menu {
  position: fixed;
  top: 0;
  right: -350px;
  width: min(350px, 85vw);
  height: 100%;
  background: #000000;
  box-shadow: -4px 0 12px rgba(0, 0, 0, 0.2);
  transition: right 0.3s ease;
  z-index: 1001;
  overflow-y: auto;
}

.side-menu.active {
  right: 0;
}

.side-menu-header {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding: 20px;
  background: #000000;
  color: white;
  border-bottom: 1px solid #2980b9;
}

.side-menu-header h2 {
  margin: 0;
  font-size: 18px;
}

.close-menu-btn {
  background: none;
  border: none;
  color: white;
  font-size: 32px;
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  line-height: 1;
}

.close-menu-btn:hover {
  opacity: 0.8;
}

.side-menu-content {
  padding: 20px;
}

.save-animation-section {
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 2px solid #ecf0f1;
}

.animation-name-input {
  width: 100%;
  padding: 10px;
  border: 1px solid #95a5a6;
  border-radius: 4px;
  font-size: 14px;
  margin-bottom: 10px;
}

.btn-block {
  width: 100%;
}

.preset-section,
.saved-animations-section,
.data-management-section {
  margin-bottom: 30px;
}

.preset-section h3,
.data-management-section h3 {
  margin: 0 0 15px 0;
  font-size: 16px;
  color: #2c3e50;
  border-bottom: 1px solid #ecf0f1;
  padding-bottom: 8px;
}

.preset-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.preset-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px;
  background: #385069;
  border-radius: 4px;
  border: 1px solid #e9ecef;
  gap: 10px;
  cursor: pointer;
  transition: background 0.2s;
}

.preset-item:hover {
  background: #2c3e50;
}

.preset-name {
  font-size: 14px;
  color: #2c3e50;
  font-weight: 500;
}

.preset-info {
  flex: 1;
}

.preset-title {
  font-size: 14px;
  color: #ffffff;
  font-weight: 500;
  margin-bottom: 4px;
}

.preset-description {
  font-size: 12px;
  color: #7f8c8d;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

.saved-animations-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.saved-animation-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  background: #385069;
  border: 1px solid #e9ecef;
  border-radius: 4px;
  cursor: move;
  transition: all 0.2s ease;
}

.saved-animation-item:hover {
  background: #4a6a8b;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.saved-animation-item.dragging {
  opacity: 0.5;
}

.saved-animation-item.active {
  border: 2px solid #3498db;
  background: #385069;
  box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.saved-animation-item.active:hover {
  background: #d6eaf8;
}

.drag-handle {
  font-size: 18px;
  color: #95a5a6;
  cursor: grab;
}

.drag-handle:active {
  cursor: grabbing;
}

.saved-animation-info {
  flex: 1;
}

.saved-animation-name {
  font-size: 14px;
  font-weight: 500;
  color: #fefefe;
  margin-bottom: 4px;
}

.saved-animation-actions {
  display: flex;
  gap: 5px;
}

.btn-ghost {
  background: none;
  border: none;
  color: #ecf0f1;
  cursor: pointer;
}

.btn-ghost:hover {
  color: #3498db;
}

.empty-message {
  text-align: center;
  color: #95a5a6;
  font-size: 14px;
  padding: 20px;
}

.data-management-buttons {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.btn-file-label {
  text-align: center;
  cursor: pointer;
  margin: 0;
}

.rotation-control {
  position: fixed;
  bottom: 50px;
  left: 50%;
  transform: translateX(-50%) translateY(100%);
  width: 300px;
  background: #2c3e50;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.rotation-control.visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  visibility: visible;
}

.rotation-control-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: #2c3e50;
  border-radius: 12px 12px 0 0;
  color: white;
}

.rotation-control-title {
  font-size: 16px;
  font-weight: 600;
}

.rotation-control-close {
  background: none;
  border: none;
  color: white;
  font-size: 28px;
  cursor: pointer;
  padding: 0;
  width: 28px;
  height: 28px;
  line-height: 1;
  transition: transform 0.2s;
}

.rotation-control-close:hover {
  transform: scale(1.1);
}

.rotation-control-close:active {
  transform: scale(0.95);
}

.rotation-control-body {
  padding: 20px;
}

.rotation-preview {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

#rotationPreviewCanvas {
  display: block;
  background: #f8f9fa;
  border-radius: 50%;
  border: 3px solid #e9ecef;
}

.rotation-angle-display {
  font-size: 24px;
  font-weight: 700;
  color: #667eea;
  text-align: center;
  min-width: 80px;
}

.player-name-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.player-name-label {
  font-size: 14px;
  font-weight: 600;
  color: #2c3e50;
}

.player-name-input {
  width: 100%;
  padding: 10px 12px;
  border: 2px solid #e9ecef;
  border-radius: 8px;
  font-size: 14px;
  transition: all 0.2s;
  outline: none;
}

.player-name-input:focus {
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.rotation-slider-container {
  position: relative;
}

.rotation-slider {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  outline: none;
  -webkit-appearance: none;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 50%, #667eea 100%);
  cursor: pointer;
  margin-bottom: 8px;
}

.rotation-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: white;
  border: 3px solid #667eea;
  cursor: grab;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  transition: all 0.2s;
}

.rotation-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.rotation-slider::-webkit-slider-thumb:active {
  cursor: grabbing;
  transform: scale(1.05);
}

.rotation-slider::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: white;
  border: 3px solid #667eea;
  cursor: grab;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  transition: all 0.2s;
}

.rotation-slider::-moz-range-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.rotation-slider::-moz-range-thumb:active {
  cursor: grabbing;
  transform: scale(1.05);
}

.rotation-slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: #7f8c8d;
  padding: 0 4px;
}

.export-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  justify-content: center;
  align-items: center;
}

.export-overlay.active {
  display: flex;
}

.export-overlay-content {
  color: #fff;
  font-size: 24px;
  font-weight: bold;
  padding: 24px 48px;
  border-radius: 12px;
}