:root {
  --bg: #fafaf9; --fg: #1c1917; --muted: #57534e; --panel: #ffffff; --line: #d6d3d1;
  --accent: #1d4ed8; --accent-fg: #ffffff; --warn-bg: #fef3c7; --warn-fg: #78350f; --err: #b91c1c;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1917; --fg: #f5f5f4; --muted: #a8a29e; --panel: #292524; --line: #44403c;
    --accent: #60a5fa; --accent-fg: #0c0a09; --warn-bg: #451a03; --warn-fg: #fde68a; --err: #f87171;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.5 system-ui, sans-serif; }
header {
  position: sticky; top: 0; z-index: 1; display: flex; flex-wrap: wrap; gap: .5rem 1rem; align-items: center;
  padding: .5rem 1rem; background: var(--panel); border-bottom: 1px solid var(--line); font-size: .9rem;
}
header .actions { margin-left: auto; display: flex; gap: .5rem; }
#sync.bad { color: var(--err); font-weight: 600; }
.panel { max-width: 44rem; margin: 2rem auto; padding: 0 1rem; }
.warn { background: var(--warn-bg); color: var(--warn-fg); padding: .75rem 1rem; border-radius: 6px; }
#login-form { display: grid; gap: .75rem; max-width: 24rem; }
#login-form label { display: grid; gap: .25rem; }
#login-form label.check { display: flex; gap: .5rem; align-items: center; }
#login-msg, #form-msg { color: var(--err); min-height: 1.5em; margin: 0; }
input, select, textarea, button { font: inherit; color: inherit; }
input, select, textarea { background: var(--panel); border: 1px solid var(--line); border-radius: 4px; padding: .35rem .5rem; }
button { background: var(--panel); border: 1px solid var(--line); border-radius: 4px; padding: .4rem .8rem; cursor: pointer; }
button.primary, #login-form button { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
main { max-width: 90rem; margin: 0 auto; padding: 1rem; }
.item { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 3fr); gap: 1.5rem; }
@media (max-width: 52rem) { .item { grid-template-columns: minmax(0, 1fr); } }
figure { margin: 0; }
#img { width: 100%; max-height: 70vh; object-fit: contain; background: var(--panel); border: 1px solid var(--line); cursor: zoom-in; }
figcaption, .note { color: var(--muted); font-size: .85rem; }
h2 { font-size: 1rem; margin: 0 0 .25rem; color: var(--muted); }
#prompt { margin-top: 0; }
#response {
  white-space: pre-wrap; overflow-wrap: anywhere; background: var(--panel); border: 1px solid var(--line);
  border-radius: 6px; padding: .75rem 1rem; max-height: 60vh; overflow: auto;
}
#label-form { display: flex; flex-wrap: wrap; gap: .75rem 1.5rem; margin-top: 1.25rem; padding-top: 1rem; border-top: 1px solid var(--line); }
fieldset { border: 1px solid var(--line); border-radius: 6px; padding: .5rem .75rem; margin: 0; }
fieldset label { margin-right: .75rem; white-space: nowrap; }
legend { font-weight: 600; font-size: .9rem; }
fieldset:disabled { opacity: .45; }
label.wide { flex: 1 1 100%; display: grid; gap: .25rem; }
.nav { flex: 1 1 100%; display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.nav .primary { margin-left: auto; }
#in-jump { width: 7rem; }
dialog { max-width: min(48rem, calc(100vw - 2rem)); background: var(--panel); color: var(--fg); border: 1px solid var(--line); border-radius: 8px; }
dialog table { border-collapse: collapse; width: 100%; }
dialog td, dialog th { border-bottom: 1px solid var(--line); padding: .3rem .5rem; text-align: left; vertical-align: top; }
#zoom { max-width: 98vw; }
#zoom-img { max-width: 94vw; max-height: 85vh; display: block; }