:root {
  color-scheme: light dark;
  --bg: #f6f4ef;
  --surface: #fffefb;
  --text: #22251f;
  --muted: #686c61;
  --line: #ddd9cf;
  --accent: #245c4a;
  --accent-text: #ffffff;
  --danger: #a33a2c;
  --warm: #8a5a1e;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171916;
    --surface: #20231f;
    --text: #e9e8e1;
    --muted: #a3a79b;
    --line: #363a33;
    --accent: #7cc4a9;
    --accent-text: #10211a;
    --danger: #ef9385;
    --warm: #dcae6e;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

a { color: var(--accent); }

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: 860px;
  margin: 0 auto;
  padding: 20px 16px 8px;
}

.brand {
  color: var(--text);
  font-size: 1.2rem;
  font-weight: 650;
  text-decoration: none;
}

.top nav { display: flex; align-items: center; gap: 16px; font-size: .94rem; }
.top nav a, .plain { color: var(--muted); text-decoration: none; }
.top nav a:hover, .plain:hover { color: var(--text); }
.top form { margin: 0; }

main { max-width: 860px; margin: 0 auto; padding: 8px 16px 48px; }

.crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 8px 0 16px;
  color: var(--muted);
  overflow-wrap: anywhere;
}
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--accent); }
.crumbs a:last-child { color: var(--text); font-weight: 600; }

.page-title { margin: 12px 0 16px; font-size: 1.35rem; }

input[type="search"], input[type="text"], input[type="password"] {
  width: 100%;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
}

#filter { margin-bottom: 12px; }

.files {
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  overflow: hidden;
}

.files li { display: flex; align-items: center; gap: 8px; padding-right: 10px; }
.files li + li { border-top: 1px solid var(--line); }

.entry {
  display: flex;
  flex: 1;
  align-items: center;
  gap: 12px;
  min-width: 0;
  min-height: 56px;
  padding: 9px 6px 9px 14px;
  color: var(--text);
  text-decoration: none;
}
.entry:hover .name { color: var(--accent); }

.icon {
  flex: none;
  width: 22px;
  height: 22px;
  fill: none;
  stroke: var(--muted);
  stroke-width: 1.5;
  stroke-linejoin: round;
  stroke-linecap: round;
}

.name { min-width: 0; overflow-wrap: anywhere; }
.name small { display: block; color: var(--muted); font-size: .84rem; }

.actions { display: flex; flex: none; gap: 6px; }
.actions form { margin: 0; }

button, .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: .9rem;
  text-decoration: none;
  cursor: pointer;
}
button:hover, .button:hover { border-color: var(--muted); }
button:disabled { opacity: .5; cursor: default; }

button.plain { min-height: 0; padding: 0; border: 0; font-size: inherit; }
button.primary { border-color: var(--accent); background: var(--accent); color: var(--accent-text); font-weight: 600; }
button.danger { color: var(--danger); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.empty, .message { color: var(--muted); }
.message { max-width: 520px; margin: 12vh auto 0; padding: 0 4px; }
.message h1 { color: var(--text); font-size: 1.35rem; margin: 0 0 8px; }

.login {
  display: grid;
  gap: 10px;
  width: 100%;
  max-width: 340px;
  margin: 16vh auto 0;
}
.login h1 { margin: 0 0 12px; font-size: 1.5rem; }
.login label { color: var(--muted); font-size: .92rem; }
.login button { min-height: 44px; }

.error { margin: 0; color: var(--danger); }

dialog {
  width: min(480px, calc(100vw - 32px));
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
}
dialog::backdrop { background: rgba(0, 0, 0, .45); }
dialog h2 { margin: 0 0 4px; font-size: 1.15rem; }
.doc { margin: 0 0 12px; color: var(--muted); overflow-wrap: anywhere; }
.note { margin: 0 0 12px; color: var(--warm); font-size: .92rem; }
#share-error { margin-top: 10px; }
.dialog-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.dialog-actions button, .dialog-actions .button { min-height: 40px; }

@media (max-width: 560px) {
  .files li { flex-direction: column; align-items: stretch; gap: 0; padding-right: 0; }
  .actions { padding: 0 14px 12px 48px; }
  .actions button, .actions .button { min-height: 40px; }
}