:root {
  --color-bg: #faf7f2;
  --color-surface: #ffffff;
  --color-border: #e3ddd2;
  --color-text: #2b2620;
  --color-text-muted: #6f675a;
  --color-primary: #b5622c;
  --color-primary-hover: #9c4f22;
  --color-error: #b3261e;
  --color-warning: #8a6d1d;
  --radius: 10px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
}

.app {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

.app-header h1 {
  margin: 0 0 4px;
  font-size: 1.75rem;
}

.subtitle {
  color: var(--color-text-muted);
  margin: 0 0 24px;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
}

.card h2 {
  margin-top: 0;
  font-size: 1.1rem;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  margin-top: 16px;
}

label:first-of-type {
  margin-top: 0;
}

select,
textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
  background: var(--color-surface);
  color: var(--color-text);
}

textarea {
  resize: vertical;
}

.drop-zone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  padding: 32px 16px;
  text-align: center;
  cursor: pointer;
  color: var(--color-text-muted);
  transition: border-color 0.15s, background 0.15s;
}

.drop-zone.drag-over {
  border-color: var(--color-primary);
  background: rgba(181, 98, 44, 0.06);
}

.drop-zone-hint {
  font-size: 0.85rem;
  margin: 4px 0 0;
}

.preview-area {
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.preview-area img {
  max-width: 160px;
  max-height: 160px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  object-fit: contain;
}

.resize-area {
  margin-top: 20px;
}

.resize-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.resize-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.95rem;
}

.resize-item-size {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.btn-primary,
.btn-secondary,
.btn-copy {
  font-family: inherit;
  font-size: 0.95rem;
  border-radius: var(--radius);
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  padding: 10px 18px;
  border: none;
}

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

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

.btn-large {
  width: 100%;
  padding: 14px;
  font-size: 1.05rem;
  font-weight: 600;
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 8px 14px;
}

.btn-copy {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  padding: 4px 10px;
  font-size: 0.85rem;
}

.btn-copy:hover {
  background: rgba(181, 98, 44, 0.08);
}

.error-text {
  color: var(--color-error);
  font-size: 0.9rem;
  margin-top: 8px;
}

.warning-text {
  color: var(--color-warning);
  font-size: 0.85rem;
  margin-top: 4px;
}

.output-field {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
}

.output-field:last-of-type {
  border-bottom: none;
}

.output-field-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0;
}

.output-field-header label {
  margin: 0;
}

.char-count {
  font-weight: 400;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.output-text {
  white-space: pre-wrap;
  margin: 8px 0 0;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.tag-chip {
  background: rgba(181, 98, 44, 0.08);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 6px;
}

.tag-chip .tag-count {
  color: var(--color-text-muted);
  font-size: 0.75rem;
}

.attribute-list {
  margin: 8px 0 0;
}

.attribute-list dt {
  font-weight: 600;
  margin-top: 8px;
}

.attribute-list dd {
  margin: 2px 0 0;
}

.listing-note {
  background: rgba(181, 98, 44, 0.08);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 0.9rem;
  color: var(--color-text);
}