/* Generator UI — overlaid on the landing page at /app */

.app-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(26,26,26,0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.app-container {
  background: var(--cream);
  border-radius: 16px;
  width: 100%;
  max-width: 820px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(42,61,46,0.2);
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 32px;
  border-bottom: 1px solid var(--cream-dark);
}

.app-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--forest);
}

.app-close {
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  transition: background 0.15s;
}
.app-close:hover { background: var(--cream-dark); }

.app-body { padding: 32px; }

/* Upload zone */
.upload-zone {
  border: 2px dashed var(--cream-darker);
  border-radius: 12px;
  padding: 48px 32px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  position: relative;
}
.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--sienna);
  background: rgba(196,91,42,0.04);
}
.upload-zone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}
.upload-icon { margin: 0 auto 16px; display: block; }
.upload-text {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
}
.upload-text strong { color: var(--sienna); }
.upload-hint { font-size: 12px; color: var(--cream-darker); margin-top: 8px; }

/* Preview */
.preview-wrap {
  display: none;
  align-items: flex-start;
  gap: 24px;
  margin-top: 24px;
}
.preview-wrap.visible { display: flex; }

.preview-img {
  width: 160px;
  height: 160px;
  object-fit: cover;
  border-radius: 8px;
  border: 2px solid var(--cream-dark);
  flex-shrink: 0;
}

.preview-info { flex: 1; }
.preview-name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--forest);
  margin-bottom: 6px;
}
.preview-meta { font-size: 13px; color: var(--text-muted); margin-bottom: 20px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: opacity 0.15s, transform 0.1s;
}
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

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

.btn-ghost {
  background: none;
  color: var(--text-muted);
  border: 1px solid var(--cream-darker);
}
.btn-ghost:hover { background: var(--cream-dark); }

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

.btn-row { display: flex; gap: 12px; flex-wrap: wrap; }

/* Generating state */
.generating-view { display: none; margin-top: 24px; text-align: center; padding: 32px; }
.generating-view.visible { display: block; }
.spinner {
  width: 48px; height: 48px;
  border: 3px solid var(--cream-dark);
  border-top-color: var(--sienna);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 16px;
}
@keyframes spin { to { transform: rotate(360deg); } }
.generating-title {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--forest);
  margin-bottom: 8px;
}
.generating-body { font-size: 14px; color: var(--text-muted); }

/* Pattern result */
.result-view { display: none; margin-top: 24px; }
.result-view.visible { display: block; }

.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}
.result-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--forest);
}
.result-badge {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 20px;
  background: var(--forest);
  color: var(--cream);
}

.result-section {
  margin-bottom: 24px;
}
.result-section-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--sienna);
  margin-bottom: 8px;
}
.result-section-body {
  font-size: 14px;
  color: var(--ink);
  line-height: 1.7;
}
.result-materials-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.result-mat-item {
  background: var(--white);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  color: var(--ink);
}
.result-mat-item strong { color: var(--forest); display: block; font-size: 11px; margin-bottom: 2px; }

.result-rows {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
}
.row-item {
  display: grid;
  grid-template-columns: 50px 70px 1fr;
  gap: 12px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--cream);
  font-size: 13px;
  font-family: 'Courier New', monospace;
}
.row-item:last-child { border-bottom: none; }
.row-item.section-break {
  background: var(--cream-dark);
  font-size: 11px;
  color: var(--sienna);
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.row-n { color: var(--sienna); font-weight: 700; }
.row-stitches { color: var(--text-muted); }
.row-instr { color: var(--ink); }

/* Error */
.error-msg {
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: 8px;
  padding: 12px 16px;
  color: #991b1b;
  font-size: 14px;
  margin-top: 16px;
  display: none;
}
.error-msg.visible { display: block; }

@media (max-width: 600px) {
  .app-body { padding: 20px; }
  .preview-wrap { flex-direction: column; }
  .preview-img { width: 100%; height: 200px; }
  .result-materials-grid { grid-template-columns: 1fr; }
}