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

:root {
  --bg: #f5f5f0;
  --surface: #ffffff;
  --primary: #2d6a4f;
  --primary-light: #52b788;
  --accent: #f4a261;
  --text: #1b1b1b;
  --muted: #666;
  --border: #ddd;
  --radius: 10px;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  padding: 16px;
}

header {
  text-align: center;
  margin-bottom: 20px;
}

header h1 {
  font-size: 1.4rem;
  color: var(--primary);
  font-weight: 700;
}

header p {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 4px;
}

.card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 16px;
}

label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 8px;
  color: var(--primary);
}

textarea {
  width: 100%;
  min-height: 140px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  font-size: 0.82rem;
  font-family: "SF Mono", "Fira Mono", monospace;
  resize: vertical;
  outline: none;
  transition: border-color 0.2s;
  color: var(--text);
  background: #fafafa;
}

textarea:focus { border-color: var(--primary-light); background: #fff; }

.btn-row {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}

button {
  flex: 1;
  padding: 13px;
  border: none;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
}

button:active { transform: scale(0.97); opacity: 0.85; }

.btn-primary { background: var(--primary); color: #fff; }
.btn-secondary { background: #e8f4ee; color: var(--primary); }

.error {
  background: #fdecea;
  border: 1px solid #f5c2c7;
  border-radius: var(--radius);
  padding: 12px 14px;
  color: #842029;
  font-size: 0.88rem;
  margin-bottom: 16px;
  display: none;
}

#output { display: none; }

.tabs {
  display: flex;
  border-bottom: 2px solid var(--border);
  margin-bottom: 16px;
}

.tab {
  flex: 1;
  padding: 10px;
  text-align: center;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--muted);
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: color 0.15s;
}

.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.summary-block {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 12px;
  position: relative;
}

.summary-block .name {
  font-weight: 700;
  font-size: 1rem;
  color: var(--primary);
  margin-bottom: 6px;
}

.summary-block .items { font-size: 0.9rem; line-height: 1.6; color: var(--text); }

.summary-block .copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--muted);
  flex: unset;
}

.summary-block .copy-btn.copied { background: var(--primary-light); color: #fff; border-color: var(--primary-light); }

.copy-all-btn {
  width: 100%;
  margin-top: 4px;
  background: var(--accent);
  color: #fff;
}

.meta {
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 12px;
  text-align: center;
}

.empty-msg {
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  padding: 20px 0;
}

.product-label { font-weight: 700; color: var(--primary); }
.product-orders { font-size: 0.9rem; color: var(--text); }

.count-badge {
  display: inline-block;
  background: var(--primary-light);
  color: #fff;
  border-radius: 20px;
  padding: 1px 9px;
  font-size: 0.78rem;
  font-weight: 700;
  margin-left: 8px;
  vertical-align: middle;
}

.count-group {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 4px 0;
  border-bottom: 1px dashed var(--border);
  font-size: 0.88rem;
}

.count-group:last-child { border-bottom: none; }

.count-qty {
  font-weight: 600;
  color: var(--primary);
  min-width: 90px;
  flex-shrink: 0;
}

.count-names { color: var(--muted); }

.drop-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 36px 16px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  background: #fafafa;
  user-select: none;
}

.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--primary-light);
  background: #f0faf5;
}

.drop-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 4px;
}

.drop-hint {
  font-size: 0.82rem;
  color: var(--muted);
}

.drop-filename {
  font-size: 0.82rem;
  color: var(--primary-light);
  font-weight: 600;
  margin-top: 8px;
  min-height: 1.2em;
}

footer {
  text-align: center;
  margin-top: 24px;
  padding-bottom: 16px;
  font-size: 0.75rem;
  color: var(--muted);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1a1a;
    --surface: #252525;
    --text: #f0f0f0;
    --muted: #999;
    --border: #3a3a3a;
  }
  .drop-zone { background: #1e1e1e; }
  .drop-zone:hover,
  .drop-zone.drag-over { background: #1e2e24; }
  .error { background: #3b1b1f; border-color: #7a2030; color: #f1adb5; }
}