:root {
  --bg: #f4f4f2;
  --surface: #ffffff;
  --border: #e2e2df;
  --text: #1c1c1a;
  --muted: #6b6b66;
  --accent: #1c1c1a;
  --accent-text: #ffffff;
  --ok: #1f8a4c;
  --err: #c0392b;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.4;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.topbar h1 { margin: 0; font-size: 20px; letter-spacing: -0.01em; }

.settings { position: relative; }
.settings summary { cursor: pointer; font-weight: 600; user-select: none; list-style: none; }
.settings summary::after { content: " ▾"; color: var(--muted); }
.settings-body {
  position: absolute; right: 0; top: 32px; z-index: 10;
  width: min(360px, 90vw);
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; box-shadow: 0 8px 24px rgba(0,0,0,.08);
  display: grid; gap: 12px;
}
.settings label { display: grid; gap: 6px; font-size: 13px; font-weight: 600; }
.settings input {
  font: inherit; font-weight: 400; padding: 8px 10px;
  border: 1px solid var(--border); border-radius: 6px;
}

main { max-width: 1100px; margin: 0 auto; padding: 24px 16px 64px; display: grid; gap: 24px; }

.controls { display: grid; gap: 16px; }

.mode { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.mode-option {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px; background: var(--surface);
  border: 2px solid var(--border); border-radius: var(--radius); cursor: pointer;
}
.mode-option:has(input:checked) { border-color: var(--accent); }
.mode-option input { accent-color: var(--accent); }
.mode-option span { display: grid; }
.mode-option small { color: var(--muted); }

.dropzone {
  padding: 40px 16px; text-align: center;
  background: var(--surface); border: 2px dashed var(--border); border-radius: var(--radius);
  cursor: pointer; transition: border-color .15s, background .15s;
}
.dropzone:hover, .dropzone:focus-visible, .dropzone.over { border-color: var(--accent); background: #fafaf8; outline: none; }
.dropzone p { margin: 4px 0; }

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

.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
button {
  font: inherit; font-weight: 600; padding: 10px 16px;
  border: 1px solid var(--border); border-radius: 8px;
  background: var(--surface); color: var(--text); cursor: pointer;
}
button:hover:not(:disabled) { border-color: var(--accent); }
button:disabled { opacity: .45; cursor: not-allowed; }
button.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.summary { margin-left: auto; color: var(--muted); font-size: 14px; }

.queue { display: grid; gap: 12px; }
.item {
  display: grid; grid-template-columns: 120px 1fr 120px; gap: 16px; align-items: center;
  padding: 12px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
}
.thumb {
  position: relative; width: 120px; height: 120px; border-radius: 8px; overflow: hidden;
  background: #ededea; display: grid; place-items: center;
}
.thumb img { width: 100%; height: 100%; object-fit: contain; }
.meta { display: grid; gap: 6px; min-width: 0; }
.name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.status { font-size: 14px; color: var(--muted); }
.item[data-status="done"] .status { color: var(--ok); }
.item[data-status="error"] .status { color: var(--err); }
.item-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.item-actions button { padding: 6px 12px; font-size: 13px; }

.spinner {
  width: 28px; height: 28px; border-radius: 50%;
  border: 3px solid var(--border); border-top-color: var(--accent);
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 640px) {
  .mode { grid-template-columns: 1fr; }
  .item { grid-template-columns: 80px 1fr 80px; }
  .thumb { width: 80px; height: 80px; }
  .summary { margin-left: 0; width: 100%; }
}