/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-md);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  min-height: 100vh;
  /* Dynamic Island / Safe Area対応 */
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

/* App Layout */
.app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* Toolbar */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--toolbar-height);
  padding: var(--space-sm) var(--space-lg);
  padding-top: max(var(--space-sm), env(safe-area-inset-top));
  background-color: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
}

.toolbar__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.toolbar__actions {
  display: flex;
  gap: var(--space-sm);
}

/* Main Content */
.main {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

/* Footer */
.footer {
  padding: var(--space-sm) var(--space-lg);
  text-align: center;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
}

.footer a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.footer a:hover {
  color: var(--color-text-secondary);
  text-decoration: underline;
}

/* Canvas Area */
.canvas-area {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  background-color: var(--color-bg-primary);
  flex-shrink: 0;
}

.canvas-wrapper {
  position: relative;
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-md);
  overflow: hidden;
  max-width: 100%;
}

#canvas {
  display: block;
  max-width: 100%;
  height: auto;
  cursor: move;
}

/* Guide Overlay */
.guide-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  display: none;
}

.guide-overlay.visible {
  display: block;
}

.guide-safe-zone {
  position: absolute;
  border: 2px dashed var(--color-accent-primary);
  box-sizing: border-box;
}

.guide-icon--bsky {
  border-bottom: none;
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

.guide-icon {
  position: absolute;
  border: 2px dashed var(--color-accent-primary);
  border-radius: 50%;
  box-sizing: border-box;
}

.guide-dynamic-island {
  position: absolute;
  border-top: 2px dashed var(--color-accent-primary);
  width: 100%;
  height: 0;
  box-sizing: border-box;
}

/* Panel */
.panel {
  min-height: 0;
  background-color: var(--color-bg-secondary);
  overflow-y: auto;
  padding: var(--space-md);
}

.panel__section {
  margin-bottom: 0;
}

.panel__heading {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.panel__heading::after {
  content: "−";
  font-size: var(--font-size-md);
  font-weight: 400;
  transition: transform var(--transition-fast);
}

.panel__section.collapsed .panel__heading {
  margin-bottom: 0;
  border-bottom: none;
}

.panel__section.collapsed .panel__heading::after {
  content: "+";
}

.panel__section.collapsed .form-group,
.panel__section.collapsed .order-list {
  display: none;
}

/* Form Elements */
.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
}

.form-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.form-row .form-range {
  flex: 1;
}

.form-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  white-space: nowrap;
}

.form-checkbox input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.form-select {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  background-color: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.form-select:focus {
  outline: none;
  border-color: var(--color-border-focus);
}

/* Font Picker */
.font-picker {
  position: relative;
}

.font-picker__selected {
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
}

.font-picker__selected::after {
  content: "▼";
  float: right;
  font-size: 10px;
  color: var(--color-text-muted);
}

.font-picker.open .font-picker__selected::after {
  content: "▲";
}

.font-picker__dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  max-height: 300px;
  overflow-y: auto;
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-top: none;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  z-index: 100;
  box-shadow: var(--shadow-md);
}

.font-picker.open .font-picker__dropdown {
  display: block;
}

.font-picker__option {
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  font-size: var(--font-size-md);
  transition: background-color var(--transition-fast);
}

.font-picker__option:hover {
  background-color: var(--color-bg-tertiary);
}

.font-picker__option.selected {
  background-color: var(--color-bg-tertiary);
  font-weight: 600;
}

.form-range {
  width: 100%;
  margin: var(--space-xs) 0;
}

.form-color {
  width: 100%;
  height: 40px;
  padding: var(--space-xs);
  background-color: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.color-preview {
  width: 100%;
  height: 24px;
  margin-top: var(--space-xs);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

/* Color Table */
.color-table {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.color-row {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  align-items: center;
}

.color-row__label {
  font-size: 10px;
  color: var(--color-text-muted);
  width: 100%;
  margin-bottom: 2px;
}

.color-chip {
  width: 20px;
  height: 20px;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.color-chip:hover {
  transform: scale(1.2);
  z-index: 1;
  box-shadow: var(--shadow-md);
}

.color-chip.selected {
  outline: 2px solid var(--color-accent-primary);
  outline-offset: 1px;
  transform: scale(1.1);
}

.color-chip[title]:hover::after {
  content: attr(title);
  position: absolute;
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  white-space: nowrap;
  z-index: 10;
}

/* Order List */
.order-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.order-list__item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-sm);
  background-color: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
}

.order-list__content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  min-width: 0;
}

.order-list__label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

.order-list__select {
  width: 100%;
}

.order-list__buttons {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.order-list__btn {
  width: 24px;
  height: 24px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 12px;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.order-list__btn:hover {
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
}

.order-list__btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn--primary {
  color: #FFFFFF;
  background-color: var(--color-accent-primary);
}

.btn--primary:hover {
  background-color: var(--color-accent-hover);
}

.btn--secondary {
  color: var(--color-text-primary);
  background-color: var(--color-bg-tertiary);
}

.btn--secondary:hover {
  background-color: var(--color-border);
}

.btn--outline {
  color: var(--color-text-secondary);
  background-color: transparent;
  border: 1px solid var(--color-border);
}

.btn--outline:hover,
.btn--outline.btn--active {
  color: var(--color-text-primary);
  border-color: var(--color-accent-primary);
  background-color: rgba(71, 73, 75, 0.1);
}

.btn-group {
  display: flex;
  gap: var(--space-sm);
}

.btn-group .btn {
  flex: 1;
}



/* Tools Panel */
.panel--tools {
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
}

/* Panel Row Container */
.panel-row {
  display: flex;
  min-height: 0;
  border-top: 1px solid var(--color-border);
  background-color: var(--color-bg-secondary);
}

/* Wide Layout - All 5 panels in a row */
@media (min-width: 1200px) {
  .app {
    height: auto;
    min-height: 100vh;
    overflow: visible;
  }

  .main {
    display: grid;
    grid-template-columns: 4fr 1fr;
    grid-template-rows: auto auto;
    grid-template-areas:
      "canvas canvas"
      "panels tools";
    overflow: visible;
    flex: none;
  }

  .canvas-area {
    grid-area: canvas;
    max-height: 50vh;
  }

  .canvas-area .canvas-wrapper {
    max-height: 100%;
  }

  .canvas-area #canvas {
    max-height: 45vh;
    width: auto;
  }

  .panel-row {
    grid-area: panels;
    flex-direction: row;
  }

  .panel-row .panel {
    flex: 1;
    border-left: 1px solid var(--color-border);
  }

  .panel-row .panel:first-child {
    border-left: none;
  }

  .panel--tools {
    grid-area: tools;
    border-top: none;
    border-left: 1px solid var(--color-border);
  }
}

/* Medium Layout - Canvas + Tools side by side, 4 panels below */
@media (min-width: 769px) and (max-width: 1199px) {
  .app {
    height: auto;
    min-height: 100vh;
    overflow: visible;
  }

  .main {
    display: grid;
    grid-template-columns: 1fr 220px;
    grid-template-rows: auto auto;
    grid-template-areas:
      "canvas tools"
      "panels panels";
    overflow: visible;
    flex: none;
  }

  .canvas-area {
    grid-area: canvas;
  }

  .panel-row {
    grid-area: panels;
    flex-direction: row;
  }

  .panel-row .panel {
    flex: 1;
    border-left: 1px solid var(--color-border);
  }

  .panel-row .panel:first-child {
    border-left: none;
  }

  .panel--tools {
    grid-area: tools;
    border-top: none;
    border-left: 1px solid var(--color-border);
  }
}

/* Narrow Layout - All stacked */
@media (max-width: 768px) {
  .main {
    display: block;
    overflow-y: auto;
  }

  .canvas-area {
    position: sticky;
    top: 0;
    z-index: 10;
  }

  .panel-row {
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--color-border);
  }

  .panel--tools {
    border-top: 1px solid var(--color-border);
  }

  .panel-row .panel {
    flex: none;
    width: 100%;
  }

  .panel-row .panel + .panel {
    border-top: 1px solid var(--color-border);
  }
}

@media (max-width: 768px) {
  .toolbar {
    padding: 0 var(--space-md);
  }

  .toolbar__title {
    font-size: var(--font-size-md);
  }
}