:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --border: #e2e5ea;
  --text: #1a1d21;
  --text-muted: #6b7280;
  --primary: #ffc300;
  --primary-dark: #e6a800;
  --accent: #ff6b00;
  --success: #10b981;
  --error: #ef4444;
  --radius: 12px;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

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

body {
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

.app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px 48px;
}

.header {
  text-align: center;
  margin-bottom: 32px;
  position: relative;
}

.header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.logout-link {
  position: absolute;
  top: 0;
  right: 0;
  font-size: 0.82rem;
  color: var(--text-muted);
  text-decoration: none;
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: color 0.2s, border-color 0.2s;
}

.logout-link:hover {
  color: var(--error);
  border-color: var(--error);
}

.main {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.panel {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 20px 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.panel h2 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--text);
}

.hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 8px;
}

.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  overflow: hidden;
}

.upload-zone:hover,
.upload-zone.dragover {
  border-color: var(--primary);
  background: #fffbeb;
}

.upload-placeholder {
  text-align: center;
  padding: 24px;
}

.upload-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 8px;
}

.preview-wrap {
  width: 100%;
  padding: 16px;
  text-align: center;
}

.preview-wrap img {
  max-width: 100%;
  max-height: 280px;
  border-radius: 8px;
  object-fit: contain;
}

#dishList {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  resize: vertical;
  min-height: 140px;
}

#dishList:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255, 195, 0, 0.25);
}

.actions-panel {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.btn {
  padding: 10px 22px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: opacity 0.2s, transform 0.1s;
}

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

.btn:not(:disabled):active {
  transform: scale(0.98);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #1a1d21;
}

.btn-secondary {
  background: #374151;
  color: #fff;
}

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

.btn-text {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-size: 0.85rem;
  margin-top: 8px;
}

.progress-panel {
  padding-top: 16px;
  padding-bottom: 16px;
}

.progress-bar {
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 10px;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width 0.3s ease;
}

.progress-text {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.empty-hint {
  grid-column: 1 / -1;
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 24px 0;
  text-align: center;
}

.result-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: #fafafa;
}

.result-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
}

.result-card .card-body {
  padding: 10px 12px;
}

.result-card .dish-name {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.result-card .status {
  font-size: 0.75rem;
  margin-bottom: 8px;
}

.result-card .status.pending { color: var(--text-muted); }
.result-card .status.processing { color: var(--accent); }
.result-card .status.done { color: var(--success); }
.result-card .status.error { color: var(--error); }

.result-card .card-actions {
  display: flex;
  gap: 8px;
}

.result-card .btn-sm {
  flex: 1;
  padding: 6px 10px;
  font-size: 0.8rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
}

.result-card .btn-sm:hover {
  background: var(--bg);
}

.result-card.processing {
  opacity: 0.85;
}

.result-card.error .thumb {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 4 / 3;
  background: #fef2f2;
  color: var(--error);
  font-size: 0.8rem;
  padding: 12px;
  text-align: center;
}

.footer {
  margin-top: 32px;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.hidden {
  display: none !important;
}