@import "https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700&family=Noto+Sans+JP:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500&display=swap";
:root {
  --color-bg-primary: #0d0d0d;
  --color-bg-secondary: #1a1a1a;
  --color-bg-tertiary: #252525;
  --color-bg-elevated: #2a2a2a;
  --color-text-primary: #e8e4dc;
  --color-text-secondary: #a8a49c;
  --color-text-muted: #6b6860;
  --color-accent-gold: #c9a227;
  --color-accent-gold-hover: #dbb82f;
  --color-accent-blue: #4a7c9b;
  --color-accent-blue-hover: #5a8caf;
  --color-success: #4a9b6a;
  --color-danger: #9b4a4a;
  --color-danger-hover: #b35555;
  --color-border: #333;
  --color-border-light: #444;
  --font-display: "Playfair Display", "Georgia", serif;
  --font-body: "Noto Sans JP", "Hiragino Sans", sans-serif;
  --font-mono: "JetBrains Mono", "Consolas", monospace;
  --space-xs: .25rem;
  --space-sm: .5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --transition-fast: .15s ease;
  --transition-normal: .25s ease;
  --transition-slow: .4s ease;
  --shadow-sm: 0 2px 4px #0000004d;
  --shadow-md: 0 4px 12px #0006;
  --shadow-lg: 0 8px 24px #00000080;
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 16px;
}

body {
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  background-image: radial-gradient(at 20% 30%, #c9a22708 0%, #0000 50%), radial-gradient(at 80% 70%, #4a7c9b08 0%, #0000 50%);
  min-height: 100vh;
  margin: 0;
  padding: 0;
  font-weight: 400;
  line-height: 1.6;
}

.app-container {
  padding: var(--space-lg);
  max-width: 1600px;
  margin: 0 auto;
}

.app-header {
  text-align: center;
  padding: var(--space-2xl) var(--space-md);
  margin-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.app-header:before {
  content: "";
  background: linear-gradient(90deg, transparent, var(--color-accent-gold), transparent);
  width: 120px;
  height: 3px;
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
}

.app-title {
  font-family: var(--font-display);
  margin: 0 0 var(--space-md);
  letter-spacing: .02em;
  background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-accent-gold) 100%);
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
}

.app-subtitle {
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
  font-size: .95rem;
  line-height: 1.7;
}

.editor-layout {
  gap: var(--space-lg);
  grid-template-columns: 1fr auto 1fr;
  align-items: start;
  display: grid;
}

@media (width <= 1024px) {
  .editor-layout {
    gap: var(--space-xl);
    grid-template-columns: 1fr;
  }
}

.editor-panel {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition-normal);
  overflow: hidden;
}

.editor-panel:hover {
  box-shadow: var(--shadow-md);
}

.panel-header {
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg-tertiary);
  border-bottom: 1px solid var(--color-border);
  justify-content: space-between;
  align-items: center;
  display: flex;
}

.panel-title {
  font-family: var(--font-display);
  align-items: center;
  gap: var(--space-sm);
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  display: flex;
}

.panel-title .icon {
  opacity: .7;
  font-size: 1rem;
}

.panel-meta {
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  background: var(--color-bg-primary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: .75rem;
}

.panel-body {
  padding: var(--space-lg);
}

.textarea-wrapper {
  position: relative;
}

.ms-textarea {
  padding: var(--space-md);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  resize: vertical;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  width: 100%;
  min-height: 300px;
  font-size: .95rem;
  line-height: 1.7;
}

.ms-textarea:focus {
  border-color: var(--color-accent-gold);
  outline: none;
  box-shadow: 0 0 0 3px #c9a22726;
}

.ms-textarea::placeholder {
  color: var(--color-text-muted);
}

.textarea-controls {
  gap: var(--space-xs);
  margin-top: var(--space-sm);
  justify-content: flex-end;
  display: flex;
}

.textarea-controls .btn-icon {
  padding: var(--space-xs) var(--space-sm);
  font-size: .85rem;
}

.ms-input {
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  width: 100%;
  font-size: .9rem;
}

.ms-input:focus {
  border-color: var(--color-accent-blue);
  outline: none;
  box-shadow: 0 0 0 3px #4a7c9b26;
}

.ms-input::placeholder {
  color: var(--color-text-muted);
}

.ms-select {
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  cursor: pointer;
  transition: border-color var(--transition-fast);
  width: 100%;
  font-size: .9rem;
}

.ms-select:focus {
  border-color: var(--color-accent-blue);
  outline: none;
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: .05em;
  font-size: .8rem;
  font-weight: 500;
  display: block;
}

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

.form-row > * {
  flex: 1;
}

.btn {
  justify-content: center;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-body);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  border: none;
  font-size: .9rem;
  font-weight: 500;
  text-decoration: none;
  display: inline-flex;
}

.btn:disabled {
  opacity: .5;
  cursor: not-allowed;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent-gold) 0%, #b8941f 100%);
  color: var(--color-bg-primary);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--color-accent-gold-hover) 0%, var(--color-accent-gold) 100%);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-light);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-bg-elevated);
  border-color: var(--color-accent-blue);
}

.btn-ghost {
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  background: none;
}

.btn-ghost:hover:not(:disabled) {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
}

.btn-danger {
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
  background: none;
}

.btn-danger:hover:not(:disabled) {
  background: var(--color-danger);
  color: var(--color-text-primary);
}

.btn-success {
  background: var(--color-success);
  color: var(--color-text-primary);
  border: none;
}

.btn-icon {
  padding: var(--space-sm);
  min-width: auto;
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: 1rem;
}

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

.btn-group .btn {
  border-radius: var(--radius-sm);
}

.center-actions {
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-xl) var(--space-md);
  top: var(--space-lg);
  flex-direction: column;
  display: flex;
  position: sticky;
}

@media (width <= 1024px) {
  .center-actions {
    padding: var(--space-md) 0;
    flex-flow: wrap;
    justify-content: center;
    position: static;
  }
}

.action-btn {
  border-radius: 50%;
  justify-content: center;
  align-items: center;
  width: 64px;
  height: 64px;
  font-size: 1.5rem;
  display: flex;
  position: relative;
  overflow: hidden;
}

.action-btn:after {
  content: "";
  pointer-events: none;
  background: linear-gradient(135deg, #ffffff1a 0%, #0000 50%);
  position: absolute;
  inset: 0;
}

.action-btn-main {
  width: 80px;
  height: 80px;
  font-size: 2rem;
}

.action-divider {
  background: var(--color-border);
  border-radius: 1px;
  width: 2px;
  height: 40px;
}

@media (width <= 1024px) {
  .action-divider {
    width: 40px;
    height: 2px;
  }
}

.settings-section {
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.settings-toggle {
  justify-content: center;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  cursor: pointer;
  transition: all var(--transition-fast);
  background: none;
  width: 100%;
  font-size: .9rem;
  display: flex;
}

.settings-toggle:hover {
  border-color: var(--color-accent-blue);
  color: var(--color-text-primary);
  background: var(--color-bg-tertiary);
}

.settings-toggle .chevron {
  transition: transform var(--transition-fast);
}

.settings-toggle.open .chevron {
  transform: rotate(180deg);
}

.settings-content {
  margin-top: var(--space-lg);
  animation: slideDown var(--transition-normal) ease;
  display: none;
}

.settings-content.open {
  display: block;
}

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.pattern-section {
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
}

.pattern-section-title {
  font-family: var(--font-display);
  margin: 0 0 var(--space-md);
  color: var(--color-text-primary);
  font-size: 1rem;
  font-weight: 600;
}

.pattern-list {
  gap: var(--space-xs);
  margin-top: var(--space-md);
  flex-direction: column;
  display: flex;
}

.pattern-item {
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  display: flex;
}

.pattern-item-text {
  color: var(--color-text-primary);
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  font-size: .85rem;
  overflow: hidden;
}

.pattern-item-text.disabled {
  color: var(--color-text-muted);
  text-decoration: line-through;
}

.pattern-item-actions {
  gap: var(--space-xs);
  display: flex;
}

.pattern-item-actions .btn-icon {
  padding: var(--space-xs);
  font-size: .75rem;
}

.page-buttons {
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
  display: flex;
}

.page-btn {
  padding: var(--space-xs) var(--space-md);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: .8rem;
}

.page-btn:hover {
  background: var(--color-bg-elevated);
  color: var(--color-text-primary);
  border-color: var(--color-accent-blue);
}

.page-btn.active {
  background: var(--color-accent-blue);
  color: var(--color-text-primary);
  border-color: var(--color-accent-blue);
}

.copy-btn {
  padding: var(--space-md);
  margin-top: var(--space-md);
  width: 100%;
  font-size: 1rem;
}

.copy-btn.copied {
  background: var(--color-success);
  color: var(--color-text-primary);
}

.text-muted {
  color: var(--color-text-muted);
}

.text-small {
  font-size: .85rem;
}

.mt-md {
  margin-top: var(--space-md);
}

.mb-md {
  margin-bottom: var(--space-md);
}

.hidden {
  display: none !important;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.05);
  }
}

.animate-fade-in {
  animation: fadeIn var(--transition-normal) ease;
}

.animate-pulse {
  animation: 2s infinite pulse;
}

@media (width <= 768px) {
  .app-container {
    padding: var(--space-md);
  }

  .app-header {
    padding: var(--space-xl) var(--space-md);
  }

  .panel-body {
    padding: var(--space-md);
  }

  .ms-textarea {
    min-height: 200px;
  }

  .form-row {
    flex-direction: column;
  }

  .action-btn-main {
    width: 64px;
    height: 64px;
    font-size: 1.5rem;
  }
}