:root {
  --bg: #fbfbfa;
  --fg: #1d1f21;
  --muted: #5f6368;
  --line: #d9d9d6;
  --panel: #ffffff;
  --accent: #1f6feb;
  --accent-fg: #ffffff;
  --error: #b42318;
  --drop: #eef3fb;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #15171a;
    --fg: #e6e6e3;
    --muted: #9aa0a6;
    --line: #34373c;
    --panel: #1c1f23;
    --accent: #4c8dff;
    --accent-fg: #0b0d10;
    --error: #ff8a80;
    --drop: #1a2333;
  }
}
:root[data-theme="dark"] {
  --bg: #15171a;
  --fg: #e6e6e3;
  --muted: #9aa0a6;
  --line: #34373c;
  --panel: #1c1f23;
  --accent: #4c8dff;
  --accent-fg: #0b0d10;
  --error: #ff8a80;
  --drop: #1a2333;
}

* { box-sizing: border-box; }
body {
  margin: 0 auto;
  max-width: 72rem;
  padding: 0 16px 2rem;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}
h1 { font-size: 1.5rem; margin: 1.5rem 0 0.25rem; }
h2 { font-size: 1.05rem; margin: 0 0 0.5rem; overflow-wrap: anywhere; }
.lede { margin: 0 0 1rem; color: var(--muted); }
a { color: var(--accent); }
code { font-size: 0.9em; }

.drop {
  border: 2px dashed var(--line);
  border-radius: 10px;
  background: var(--drop);
  padding: 1rem 1.25rem;
}
.drop.over { border-color: var(--accent); }
.drop:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.drop p { margin: 0.25rem 0; }
.hint { color: var(--muted); font-size: 0.9rem; }
.opt { white-space: nowrap; margin-left: 0.5rem; }

button, .button {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-fg);
  border-radius: 6px;
  padding: 0.15rem 0.6rem;
  display: inline-block;
}
button:focus-visible, .button:focus-visible { outline: 2px solid var(--fg); outline-offset: 2px; }

#status { min-height: 1.5em; margin: 0.75rem 0; overflow-wrap: anywhere; }
#status.error, .error { color: var(--error); }

.facts { display: flex; flex-wrap: wrap; gap: 0.25rem 1.5rem; margin: 0 0 1rem; }
.facts div { min-width: 0; }
.facts dt { font-size: 0.8rem; color: var(--muted); }
.facts dd { margin: 0; font-weight: 600; overflow-wrap: anywhere; }

.panes { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 3fr); gap: 1rem; }
@media (max-width: 720px) { .panes { grid-template-columns: minmax(0, 1fr); } }
#tree, #view {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.75rem;
  min-width: 0;
}
#tree { max-height: 70vh; overflow: auto; }
ul.dir { list-style: none; margin: 0; padding-left: 1rem; }
#tree > ul.dir { padding-left: 0; }
ul.dir li { margin: 0.1rem 0; display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.5rem; }
ul.dir li > details { flex: 1 1 100%; }
summary.name { cursor: pointer; font-weight: 600; overflow-wrap: anywhere; }
button.name {
  background: none;
  border: none;
  color: var(--accent);
  padding: 0;
  text-align: left;
  overflow-wrap: anywhere;
}
button.dl { font-size: 0.8rem; padding: 0 0.4rem; }
.size { color: var(--muted); font-size: 0.85rem; }

#view pre {
  margin: 0;
  max-height: 65vh;
  overflow: auto;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font: 13px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
}
#view pre.hex { white-space: pre; }
#view img { max-width: 100%; height: auto; image-rendering: auto; }

footer { margin-top: 2rem; color: var(--muted); font-size: 0.85rem; }