*,
*::before,
*::after {
  box-sizing: border-box;
}

:root,
body[data-theme='light'] {
  color-scheme: light;
  --pas-bg: #f3f4f6;
  --pas-surface: #ffffff;
  --pas-text: #1f2937;
  --pas-muted: #4b5563;
  --pas-muted-2: #6b7280;
  --pas-border: #e5e7eb;
  --pas-accent: #7c3aed;
  --pas-accent-hover: #6d28d9;
  --pas-accent-soft: #f5f3ff;
  --pas-panel-bg: #ffffff;
  --pas-preview-area: #f3f4f6;
  --pas-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
  --pas-frame-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  --pas-stripe: #f9fafb;
  --pas-legend-summary-bg: #f5f3ff;
  --pas-success: #059669;
  --pas-success-hover: #047857;
  --pas-input-bg: #ffffff;
  --pas-input-border: #d1d5db;
  --pas-checker-a: #e5e7eb;
  --pas-checker-b: #ffffff;
  --pas-danger-bg: #fef2f2;
  --pas-danger-border: #fecaca;
  --pas-danger-text: #b91c1c;
  --pas-on-accent: #ffffff;
  --pas-compare-stage: #111827;
  --pas-handle-accent: #0f766e;
  --pas-coming-bg: #f9fafb;
}

body[data-theme='dark'] {
  color-scheme: dark;
  --pas-bg: #0f1419;
  --pas-surface: #1a222c;
  --pas-text: #e5e7eb;
  --pas-muted: #9ca3af;
  --pas-muted-2: #9ca3af;
  --pas-border: #2d3744;
  --pas-accent: #a78bfa;
  --pas-accent-hover: #c4b5fd;
  --pas-accent-soft: #2a2038;
  --pas-panel-bg: #151b23;
  --pas-preview-area: #121820;
  --pas-shadow: 0 12px 30px rgba(0, 0, 0, 0.45);
  --pas-frame-shadow: 0 6px 18px rgba(0, 0, 0, 0.4);
  --pas-stripe: #1c2430;
  --pas-legend-summary-bg: #2a2038;
  --pas-success: #10b981;
  --pas-success-hover: #34d399;
  --pas-input-bg: #1a222c;
  --pas-input-border: #2d3744;
  --pas-checker-a: #2d3744;
  --pas-checker-b: #1a222c;
  --pas-danger-bg: #3f1d1d;
  --pas-danger-border: #7f1d1d;
  --pas-danger-text: #fca5a5;
  --pas-on-accent: #ffffff;
  --pas-compare-stage: #111827;
  --pas-handle-accent: #2dd4bf;
  --pas-coming-bg: #151b23;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'M PLUS Rounded 1c', 'Inter', system-ui, sans-serif;
  background: var(--pas-bg);
  color: var(--pas-text);
  line-height: 1.5;
}

.pas-wrap {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0.75rem 1rem 1rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.pas-header {
  text-align: center;
  margin-bottom: 0.75rem;
  flex-shrink: 0;
}

.pas-header__top {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  position: relative;
}

.pas-theme-toggle {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border: 1px solid var(--pas-border);
  background: var(--pas-surface);
  color: var(--pas-text);
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
  transition: background 0.15s, border-color 0.15s, transform 0.15s;
}

.pas-theme-toggle:hover {
  border-color: var(--pas-accent);
  transform: translateY(-50%) translateY(-1px);
}

.pas-header h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.35rem, 3.5vw, 1.75rem);
  font-weight: 700;
}

.pas-header p {
  margin: 0;
  color: var(--pas-muted);
  font-size: 0.9rem;
}

.pas-main {
  background: var(--pas-surface);
  border-radius: 1rem;
  box-shadow: var(--pas-shadow);
  overflow: hidden;
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.pas-layout {
  display: grid;
  grid-template-columns: minmax(0, 18rem) minmax(0, 1fr);
  gap: 0;
  min-height: 0;
}

.pas-workspace.pas-layout {
  flex: 1;
  height: calc(100vh - 9.5rem);
  max-height: calc(100vh - 9.5rem);
}

body.pas-page-body .pas-workspace.pas-layout {
  height: calc(100dvh - 13.5rem);
  max-height: calc(100dvh - 13.5rem);
}

@media (max-width: 768px) {
  .pas-layout {
    grid-template-columns: 1fr;
  }

  .pas-workspace.pas-layout {
    height: auto;
    max-height: none;
  }
}

.pas-panel {
  padding: 1rem 1.1rem;
  border-right: 1px solid var(--pas-border);
  overflow-y: auto;
  min-height: 0;
  background: var(--pas-panel-bg);
}

@media (max-width: 768px) {
  .pas-panel {
    border-right: none;
    border-bottom: 1px solid var(--pas-border);
  }
}

.pas-preview-area {
  padding: 0.9rem 1rem;
  min-height: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  overflow-x: hidden;
  overflow-y: auto;
  background: var(--pas-preview-area);
}

.pas-preview-box {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 14rem;
  max-height: 100%;
  border-radius: 0.75rem;
  overflow: hidden;
  background: transparent;
}

.pas-preview-box canvas {
  display: block;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
}

.pas-preview-frame {
  display: inline-flex;
  max-width: 100%;
  max-height: 100%;
  border-radius: 0.5rem;
  overflow: auto;
  background-color: var(--pas-checker-b);
  background-image:
    conic-gradient(
      var(--pas-checker-a) 90deg,
      var(--pas-checker-b) 90deg 180deg,
      var(--pas-checker-a) 180deg 270deg,
      var(--pas-checker-b) 270deg
    );
  background-size: 16px 16px;
  background-position: 0 0;
  line-height: 0;
  align-items: center;
  justify-content: center;
  box-shadow: var(--pas-frame-shadow);
}

.pas-preview-box--plain .pas-preview-frame {
  background-image: none;
}

.pas-preview-box--solid-white .pas-preview-frame {
  background-color: var(--pas-on-accent);
  background-image: none;
}

.pas-preview-box--solid-custom .pas-preview-frame {
  background-image: none;
}

.pas-preview-box--pattern {
  background: transparent;
  align-items: center;
  justify-content: center;
}

.pas-preview-box--pattern .pas-preview-frame {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  background-image: none;
  background-color: var(--pas-stripe);
  align-items: flex-start;
  justify-content: flex-start;
}

.pas-preview-box--pattern canvas {
  image-rendering: auto;
  max-width: 100%;
  max-height: 100%;
}

.pas-drop {
  border: 3px dashed var(--pas-input-border);
  border-radius: 0.75rem;
  padding: 1.5rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.pas-drop:hover,
.pas-drop.is-active {
  border-color: var(--pas-accent);
  background: var(--pas-accent-soft);
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.12);
}

.pas-drop__icon,
.pas-drop svg {
  display: block;
  width: 3rem;
  height: 3rem;
  color: var(--pas-muted-2);
  margin-inline: auto;
  margin-bottom: 0.5rem;
  transition: transform 0.2s ease, color 0.2s ease;
}

.pas-drop:hover .pas-drop__icon,
.pas-drop:hover svg,
.pas-drop.is-active .pas-drop__icon,
.pas-drop.is-active svg {
  transform: translateY(-4px);
  color: var(--pas-accent);
}

.pas-drop__hint {
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: var(--pas-muted-2);
}

.pas-drop-samples {
  margin-top: 1.35rem;
  padding-top: 1.1rem;
  border-top: 1px dashed var(--pas-border);
}

.pas-upload-blurb {
  margin: 1.1rem 0 0;
  padding-top: 0.85rem;
  border-top: 1px dashed var(--pas-border);
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--pas-muted);
  text-align: center;
}

.pas-help-link {
  margin: 0;
  padding: 0.75rem 1rem 1rem;
  text-align: center;
  font-size: 0.875rem;
  background: transparent;
  border: none;
}

.pas-help-link a {
  color: var(--pas-accent);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.pas-help-link a:hover {
  color: var(--pas-accent-hover);
}

.pas-drop-samples__label {
  margin: 0 0 0.75rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--pas-muted-2);
}

.pas-drop-samples__row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  max-width: 52rem;
  margin: 0 auto;
}

@media (max-width: 720px) {
  .pas-drop-samples__row {
    grid-template-columns: 1fr;
    max-width: 22rem;
  }
}

.pas-mini-compare {
  margin: 0;
  text-align: left;
}

.pas-mini-compare__stage {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: 0.65rem;
  overflow: hidden;
  background: var(--pas-compare-stage);
  cursor: ew-resize;
  touch-action: none;
  user-select: none;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.14);
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.pas-mini-compare__base,
.pas-mini-compare__top {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}

.pas-mini-compare__base {
  position: absolute;
  inset: 0;
  image-rendering: pixelated;
}

.pas-mini-compare__overlay {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 50%;
  overflow: hidden;
  z-index: 2;
  pointer-events: none;
}

.pas-mini-compare__top {
  position: absolute;
  left: 0;
  top: 0;
  width: var(--mini-stage-w, 100%);
  max-width: none;
  height: 100%;
}

.pas-mini-compare__handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: var(--pas-on-accent);
  z-index: 3;
  pointer-events: none;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.2);
}

.pas-mini-compare__handle::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 50%;
  background: var(--pas-on-accent);
  border: 2px solid var(--pas-handle-accent);
  transform: translate(-50%, -50%);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.pas-mini-compare figcaption {
  margin-top: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--pas-muted-2);
  text-align: center;
}

.pas-drop p {
  margin: 0.25rem 0;
  font-size: 0.95rem;
  color: var(--pas-muted);
}

.pas-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border: none;
  border-radius: 0.65rem;
  padding: 0.55rem 1.1rem;
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: background 0.15s, transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

.pas-btn--primary {
  background: var(--pas-accent);
  color: var(--pas-on-accent);
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.28);
}

.pas-btn--primary:hover:not(:disabled) {
  background: var(--pas-accent-hover);
  transform: translateY(-1px);
}

.pas-btn--secondary {
  background: var(--pas-panel-bg);
  color: var(--pas-text);
  border: 1px solid var(--pas-border);
}

.pas-btn--secondary:hover:not(:disabled) {
  border-color: var(--pas-accent);
  background: var(--pas-accent-soft);
}

.pas-btn--success {
  background: var(--pas-success);
  color: var(--pas-on-accent);
  box-shadow: 0 4px 12px rgba(5, 150, 105, 0.28);
}

.pas-btn--success:hover:not(:disabled) {
  background: var(--pas-success-hover);
  transform: translateY(-1px);
}

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

.pas-field {
  margin-top: 0.85rem;
}

.pas-field label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
}

.pas-field .pas-seg__opt {
  margin-bottom: 0;
  align-items: stretch;
  justify-content: stretch;
  font-size: inherit;
  font-weight: inherit;
}

.pas-field label span {
  font-weight: 700;
  color: var(--pas-accent);
}

.pas-field input[type='range'] {
  width: 100%;
  accent-color: var(--pas-accent);
}

.pas-seg {
  display: flex;
  align-items: stretch;
  margin-top: 0.35rem;
  border: 1px solid var(--pas-border);
  border-radius: 0.65rem;
  overflow: hidden;
  background: var(--pas-panel-bg);
}

.pas-seg__opt {
  position: relative;
  flex: 1 1 0;
  min-width: 0;
  display: flex;
}

.pas-seg__opt + .pas-seg__opt {
  border-left: 1px solid var(--pas-border);
}

.pas-seg__opt input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.pas-seg__opt span {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.28rem;
  flex: 1 1 auto;
  width: 100%;
  min-height: 2.4rem;
  box-sizing: border-box;
  text-align: center;
  padding: 0.55rem 0.2rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--pas-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
  user-select: none;
}

.pas-seg__opt:hover input:not(:checked) + span {
  background: var(--pas-accent-soft);
  color: var(--pas-text);
}

.pas-seg__opt input:checked + span {
  background: var(--pas-accent);
  color: var(--pas-on-accent);
  font-weight: 700;
}

.pas-seg__glyph {
  display: inline-block;
  flex-shrink: 0;
  width: 0.7rem;
  height: 0.7rem;
  background: currentColor;
}

.pas-seg__glyph--square {
  border-radius: 0;
}

.pas-seg__glyph--circle {
  border-radius: 50%;
}

.pas-seg__glyph--rounded {
  border-radius: 0.2rem;
}

.pas-subheading {
  margin: 1rem 0 0.5rem;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--pas-text);
}

.pas-view-tabs {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.pas-view-tab {
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--pas-input-border);
  border-radius: 999px;
  background: var(--pas-input-bg);
  color: var(--pas-muted);
  cursor: pointer;
}

.pas-view-tab.is-active {
  background: var(--pas-accent);
  border-color: var(--pas-accent);
  color: var(--pas-on-accent);
}

.pas-pattern-opts {
  margin-top: 0.5rem;
  padding-top: 0.25rem;
  border-top: 1px dashed var(--pas-border);
}

.pas-legend {
  margin-top: 1rem;
}

.pas-legend-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-height: 16rem;
  overflow-y: auto;
  margin-bottom: 0.75rem;
  border: 1px solid var(--pas-border);
  border-radius: 0.5rem;
  overflow: hidden auto;
}

.pas-legend-summary {
  padding: 0.55rem 0.65rem;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--pas-accent);
  background: var(--pas-legend-summary-bg);
  border-bottom: 1px solid var(--pas-border);
}

.pas-legend-row {
  display: grid;
  grid-template-columns: 1.5rem 1.25rem 1fr auto;
  gap: 0.4rem;
  align-items: center;
  font-size: 0.82rem;
  padding: 0.35rem 0.65rem;
}

.pas-legend-row:nth-child(even) {
  background: var(--pas-stripe);
}

.pas-legend-row__num {
  font-weight: 700;
  color: var(--pas-muted);
  text-align: center;
}

.pas-legend-row__swatch {
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 0.2rem;
  border: 1px solid rgba(0, 0, 0, 0.15);
}

.pas-legend-row__hex {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color: var(--pas-muted-2);
}

.pas-legend-row__count {
  font-weight: 600;
  color: var(--pas-text);
}

.pas-legend-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.pas-compare {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1 1 auto;
  min-height: 0;
  align-items: center;
  justify-content: center;
}

.pas-compare-stage {
  position: relative;
  display: inline-block;
  max-width: 100%;
  max-height: 100%;
  border-radius: 0.75rem;
  overflow: hidden;
  background: var(--pas-compare-stage);
  line-height: 0;
  vertical-align: top;
  cursor: ew-resize;
  touch-action: none;
  user-select: none;
}

.pas-compare-stage.is-dragging {
  cursor: grabbing;
}

.pas-compare-canvas {
  display: block;
  max-width: none;
  image-rendering: pixelated;
}

#compare-base {
  position: relative;
  z-index: 1;
}

.pas-compare-overlay {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  z-index: 2;
  overflow: hidden;
  width: 50%;
  pointer-events: none;
}

#compare-top {
  position: absolute;
  left: 0;
  top: 0;
}

.pas-compare-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: var(--pas-on-accent);
  z-index: 3;
  pointer-events: none;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.25);
}

.pas-compare-handle::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: var(--pas-on-accent);
  border: 2px solid var(--pas-handle-accent);
  transform: translate(-50%, -50%);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.28);
  pointer-events: auto;
  cursor: ew-resize;
}

.pas-compare-hint {
  margin: 0;
  font-size: 0.8rem;
  color: var(--pas-muted-2);
  text-align: center;
}

.pas-select {
  width: 100%;
  font: inherit;
  padding: 0.4rem 0.5rem;
  border-radius: 0.4rem;
  border: 1px solid var(--pas-input-border);
  background: var(--pas-input-bg);
  color: var(--pas-text);
  color-scheme: light dark;
}

.pas-select--inline {
  width: auto;
  max-width: min(100%, 16rem);
  padding: 0.25rem 0.5rem;
}

.pas-check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
}

.pas-check input {
  width: 1rem;
  height: 1rem;
  accent-color: var(--pas-accent);
}

body.pas-page-body {
  margin: 0;
}

/* pas ダーク時のみサイトヘッダーをアプリ面に合わせる（他ツールには影響しない） */
body.pas-page-body[data-theme='dark'] #pctrouble-header-menu,
body.pas-page-body[data-theme='dark'] #pctrouble-header-menu > header,
body.pas-page-body[data-theme='dark'] #pctrouble-header-menu .header-logo,
body.pas-page-body[data-theme='dark'] #pctrouble-header-menu #site-tool-finder-header-mount {
  background: rgba(15, 20, 25, 0.92) !important;
  background-color: rgba(15, 20, 25, 0.92) !important;
  border-color: var(--pas-border);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(10px);
}

body.pas-page-body[data-theme='dark'] #pctrouble-header-menu,
body.pas-page-body[data-theme='dark'] #pctrouble-header-menu button,
body.pas-page-body[data-theme='dark'] #pctrouble-header-menu a {
  color: #e5e7eb !important;
}

body.pas-page-body[data-theme='dark'] #pctrouble-header-menu a:hover,
body.pas-page-body[data-theme='dark'] #pctrouble-header-menu button:hover {
  color: #fff !important;
  background: rgba(255, 255, 255, 0.06);
}

body.pas-page-body[data-theme='dark'] #pctrouble-header-menu .header-logo a {
  color: #f3f4f6 !important;
}

body.pas-page-body[data-theme='dark'] #pctrouble-header-menu #site-tool-finder-header-mount {
  border-left-color: var(--pas-border);
}

body.pas-page-body[data-theme='dark'] #pctrouble-site .site-tool-finder__trigger {
  color: #d1d5db !important;
}

body.pas-page-body[data-theme='dark'] #pctrouble-site .site-tool-finder__panel {
  background: #151b23;
  border-color: var(--pas-border);
  color: #e5e7eb;
}

body.pas-page-body[data-theme='dark'] #pctrouble-site .site-tool-finder__input {
  background: #1a222c;
  border-color: var(--pas-border);
  color: #f3f4f6;
}

#pctrouble-site {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

#pctrouble-site > .pas-wrap {
  flex: 1 1 auto;
  width: 100%;
}

.pas-landing-banner {
  margin: 0 auto;
  max-width: 72rem;
  padding: 0.75rem 1rem 0;
}

.pas-landing-banner a {
  color: var(--pas-accent);
  font-weight: 600;
  font-size: 0.9rem;
}

.pas-input {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--pas-input-border);
  background: var(--pas-input-bg);
  color: var(--pas-text);
  border-radius: 0.5rem;
  padding: 0.45rem 0.65rem;
  font: inherit;
}

.pas-extra-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.55rem;
  padding-top: 0.55rem;
  border-top: 1px dashed var(--pas-border);
}

.pas-extra-tools__btn {
  font-size: 0.75rem;
  padding: 0.28rem 0.55rem;
}

.pas-phase4__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.75rem;
}

.pas-phase4__row--stack {
  flex-direction: column;
  align-items: stretch;
}

.pas-phase4__label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--pas-text);
}

.pas-phase4__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.35rem;
}

.pas-phase4__actions .pas-btn {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.pas-phase4__preset {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.4rem;
}

@media (min-width: 640px) {
  .pas-phase4__preset {
    grid-template-columns: 1.2fr auto 1fr auto auto;
  }
}

.pas-dialog {
  width: min(32rem, calc(100vw - 2rem));
  max-height: min(85vh, 40rem);
  margin: auto;
  padding: 0;
  border: 1px solid var(--pas-border);
  border-radius: 0.85rem;
  background: var(--pas-surface);
  color: var(--pas-text);
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.28);
  overflow: hidden;
}

.pas-dialog::backdrop {
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(2px);
}

.pas-dialog__chrome {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin: 0;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--pas-border);
  background: var(--pas-panel-bg);
}

.pas-dialog__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
}

.pas-dialog__close {
  appearance: none;
  flex: 0 0 auto;
  width: 2rem;
  height: 2rem;
  border: 0;
  border-radius: 0.4rem;
  background: transparent;
  color: var(--pas-muted);
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
}

.pas-dialog__close:hover {
  background: var(--pas-accent-soft);
  color: var(--pas-accent);
}

.pas-dialog__body {
  padding: 1rem;
}

body.pas-page-body[data-theme='dark'] .pas-dialog {
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.55);
}

body.pas-page-body[data-theme='dark'] .pas-dialog::backdrop {
  background: rgba(0, 0, 0, 0.62);
}

.pas-seg__btn {
  appearance: none;
  flex: 1 1 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--pas-text);
  padding: 0.45rem 0.5rem;
  font: inherit;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
}

.pas-seg__btn + .pas-seg__btn {
  border-left: 1px solid var(--pas-border);
}

.pas-seg__btn:hover:not(:disabled) {
  background: var(--pas-accent-soft);
  color: var(--pas-accent);
}

.pas-seg__btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.pas-download-row {
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .pas-extra-tools__btn,
  .pas-phase4__actions .pas-btn,
  .pas-download__group .pas-btn {
    width: 100%;
  }

  input[type='range'] {
    touch-action: none;
  }
}

.pas-palette-meta {
  font-weight: 500;
  color: var(--pas-muted-2);
  font-size: 0.8rem;
}

.pas-reprocess {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: var(--pas-muted-2);
}

.pas-reprocess[hidden] {
  display: none !important;
}

.pas-spinner--sm {
  width: 1rem;
  height: 1rem;
  border-width: 2px;
  margin: 0;
}

#bg-color {
  width: 100%;
  height: 2.25rem;
  padding: 0;
  border: 1px solid var(--pas-input-border);
  border-radius: 0.4rem;
  background: var(--pas-input-bg);
  cursor: pointer;
}

.pas-palette {
  margin-top: 1.25rem;
}

.pas-palette h2 {
  margin: 0 0 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
}

.pas-palette-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  max-height: 8rem;
  overflow-y: auto;
}

.pas-swatch {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  min-width: 3.25rem;
}

.pas-swatch button {
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid rgba(0, 0, 0, 0.15);
  border-radius: 0.35rem;
  cursor: pointer;
  padding: 0;
}

.pas-swatch code {
  font-size: 0.65rem;
  color: var(--pas-muted-2);
}

.pas-preview-empty {
  color: var(--pas-muted-2);
  text-align: center;
  padding: 2rem;
  font-size: 0.95rem;
}

.pas-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.pas-download-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-top: 0;
  flex-shrink: 0;
}

.pas-download {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: 0;
  flex-shrink: 0;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--pas-border);
  border-radius: 0.65rem;
  background: var(--pas-surface);
}

.pas-download__scale {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.85rem;
  font-weight: 600;
}

.pas-download__group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
}

.pas-download__group-label {
  flex: 0 0 100%;
  font-size: 0.72rem;
  color: var(--pas-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.pas-btn--download {
  font-weight: 700;
  font-size: 0.82rem;
  padding: 0.4rem 0.7rem;
}

.pas-btn--download::before {
  content: '↓';
  display: inline-block;
  margin-right: 0.35em;
  font-weight: 700;
  opacity: 0.85;
}

.pas-download-row label {
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.pas-download-row select,
.pas-download select {
  font: inherit;
  padding: 0.25rem 0.5rem;
  border-radius: 0.35rem;
  border: 1px solid var(--pas-input-border);
  background: var(--pas-input-bg);
  color: var(--pas-text);
  color-scheme: light dark;
}

.pas-error {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background: var(--pas-danger-bg);
  border: 1px solid var(--pas-danger-border);
  border-radius: 0.5rem;
  color: var(--pas-danger-text);
  font-size: 0.9rem;
  white-space: pre-wrap;
}

.pas-error[hidden],
.pas-workspace[hidden],
.pas-loading[hidden],
.pas-preview-box[hidden],
.pas-compare[hidden],
.pas-pattern-opts[hidden],
.pas-legend[hidden],
.pas-download-row[hidden],
.pas-field[hidden] {
  display: none !important;
}

.pas-loading {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--pas-muted-2);
}

.pas-spinner {
  width: 2.5rem;
  height: 2.5rem;
  margin: 0 auto 0.75rem;
  border: 4px solid var(--pas-border);
  border-top-color: var(--pas-accent);
  border-radius: 50%;
  animation: pas-spin 0.8s linear infinite;
}

@keyframes pas-spin {
  to {
    transform: rotate(360deg);
  }
}

.pas-footer {
  margin-top: 1.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--pas-muted-2);
}

/* サイトヘッダーをワークスペースより前面に（sticky パネルがメニューを貫通しないように） */
body.pas-page-body #pctrouble-header-menu {
  position: relative;
  z-index: 200;
}

.pas-panel__top {
  position: sticky;
  top: 0;
  z-index: 1;
  margin: -0.15rem -0.15rem 0.85rem;
  padding: 0.15rem 0.15rem 0.75rem;
  background: var(--pas-panel-bg);
  border-bottom: 1px solid var(--pas-border);
}

.pas-file-name {
  margin: 0;
  font-size: 0.8rem;
  color: var(--pas-muted-2);
  word-break: break-all;
}

.pas-reset-btn {
  width: 100%;
  margin-top: 0.55rem;
}

.pas-reset {
  margin-top: 0.75rem;
  background: none;
  border: none;
  color: var(--pas-accent);
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
}

.pas-coming-soon {
  margin-top: 1.25rem;
  padding: 0.75rem;
  background: var(--pas-coming-bg);
  border-radius: 0.5rem;
  font-size: 0.8rem;
  color: var(--pas-muted-2);
}

.pas-coming-soon strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--pas-text);
}

.pas-log-section {
  border-top: 1px solid var(--pas-border);
  padding: 0;
  flex-shrink: 0;
}

.pas-log-details > summary {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1rem;
  cursor: pointer;
  padding: 0.85rem 1.25rem;
  user-select: none;
}

.pas-log-details > summary::-webkit-details-marker {
  display: none;
}

.pas-log-summary__title {
  font-weight: 600;
  color: var(--pas-text);
}

.pas-log-summary__note {
  font-size: 0.75rem;
  color: var(--pas-muted-2);
}

.pas-log-body {
  padding: 0 1.25rem 1.25rem;
}

.pas-log-actions {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.pas-log-btn {
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: 0.4rem;
  border: 1px solid var(--pas-input-border);
  background: var(--pas-input-bg);
  color: var(--pas-text);
  cursor: pointer;
}

.pas-log-btn:hover {
  background: var(--pas-bg);
}

.pas-log-btn--ghost {
  background: transparent;
}

.pas-log-view {
  width: 100%;
  box-sizing: border-box;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.75rem;
  line-height: 1.45;
  color: var(--pas-text);
  background: var(--pas-stripe);
  border: 1px solid var(--pas-border);
  border-radius: 0.5rem;
  padding: 0.75rem;
  resize: vertical;
  min-height: 8rem;
}