:root {
  --bg-color: #0f172a;
  --card-bg: #1e293b;
  --border-color: #334155;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --accent: #10b981;
  --accent-hover: #059669;
  --danger: #ef4444;
  --radius: 12px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 24px;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  font-size: 32px;
}

h1 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.subtitle {
  font-size: 13px;
  color: var(--text-muted);
}

.api-key-box {
  display: flex;
  align-items: center;
  gap: 8px;
}

.api-key-box label {
  font-size: 13px;
  color: var(--text-muted);
}

.api-key-box input {
  background: #0b1120;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 13px;
  width: 220px;
}

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

h2 {
  font-size: 18px;
  margin-bottom: 16px;
  font-weight: 600;
}

.drop-zone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius);
  padding: 36px 16px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  background: #131c2e;
}

.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--primary);
  background: #17243c;
}

.upload-icon {
  font-size: 36px;
  display: block;
  margin-bottom: 8px;
}

.hint {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.preview-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.preview-container img {
  max-height: 240px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.meta-tag {
  font-size: 12px;
  color: var(--text-muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background 0.15s ease;
  margin-top: 16px;
}

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

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

.btn-secondary {
  background: #334155;
  color: white;
  margin-top: 0;
}
.btn-secondary:hover:not(:disabled) {
  background: #475569;
}

.btn-accent {
  background: var(--accent);
  color: white;
  font-size: 16px;
  padding: 12px 28px;
}
.btn-accent:hover:not(:disabled) {
  background: var(--accent-hover);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin: 16px 0 24px 0;
}

.metric-card {
  background: #131c2e;
  border: 1px solid var(--border-color);
  padding: 16px;
  border-radius: 8px;
  text-align: center;
}

.metric-card.highlight {
  border-color: var(--primary);
  background: #172554;
}

.metric-title {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.metric-value {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-main);
}

.detail-split {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 16px;
}

.code-viewer {
  background: #090d16;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px;
  font-family: monospace;
  font-size: 12px;
  color: #38bdf8;
  max-height: 220px;
  overflow-y: auto;
  white-space: pre-wrap;
}

.crops-gallery {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.crop-card {
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 8px;
  background: #090d16;
  text-align: center;
}

.crop-card img {
  max-height: 90px;
  display: block;
  margin-bottom: 4px;
  border-radius: 4px;
}

.crop-card span {
  font-size: 11px;
  color: var(--text-muted);
}

.compare-container {
  margin-top: 16px;
  text-align: center;
}

.compare-view img {
  max-width: 100%;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.footer {
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 36px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.hidden {
  display: none !important;
}