:root {
  --bg: #f5f6f8; --card: #fff; --text: #1b1f24; --muted: #68707c; --line: #dfe3e8;
  --accent: #2563eb; --accent-text: #fff; --danger: #c62828; --ok-bg: #e6f4ea; --ok: #1e6b34;
  --err-bg: #fdecea; --err: #a12622;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418; --card: #1a1e24; --text: #e7eaee; --muted: #98a1ad; --line: #2c323a;
    --accent: #5b8def; --accent-text: #0b1220; --danger: #ef6b64; --ok-bg: #173222; --ok: #8fd6a4;
    --err-bg: #3a1b1a; --err: #f3a19c;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
h1 { font-size: 1.35rem; margin: 0 0 .5rem; }
h2 { font-size: 1.1rem; margin: 0 0 .75rem; }
h2 .muted { font-weight: normal; font-size: .9rem; margin-left: .4rem; }
.muted { color: var(--muted); font-size: .9rem; }
code { font-size: .85rem; word-break: break-all; }

.top {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: .5rem;
  padding: .75rem 1rem; border-bottom: 1px solid var(--line); background: var(--card);
}
.brand { font-weight: 700; text-decoration: none; color: var(--text); }
nav { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
nav a { text-decoration: none; }
nav form { margin: 0; }

main { max-width: 820px; margin: 0 auto; padding: 1rem; }
footer { text-align: center; color: var(--muted); font-size: .75rem; padding: 1rem; }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 1.25rem; margin-bottom: 1rem;
}
.narrow { max-width: 420px; margin-left: auto; margin-right: auto; }
.center { text-align: center; }

label { display: block; margin-bottom: .85rem; font-size: .9rem; color: var(--muted); }
label.inline { margin: .75rem 0 0; }
input:not([type=file]):not([type=checkbox]), select {
  display: block; width: 100%; margin-top: .25rem; padding: .6rem .7rem;
  font: inherit; color: var(--text); background: var(--bg);
  border: 1px solid var(--line); border-radius: 8px;
}
label.inline select { display: inline-block; width: auto; margin: 0 0 0 .25rem; padding: .3rem .5rem; }

button, .button {
  display: inline-block; font: inherit; font-size: .9rem; cursor: pointer; text-decoration: none;
  padding: .5rem .9rem; border-radius: 8px; border: 1px solid var(--line);
  background: var(--card); color: var(--text);
}
button:hover, .button:hover { border-color: var(--accent); }
.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 600; }
.danger { color: var(--danger); }
button.link { border: 0; background: none; padding: 0; color: var(--accent); font-size: 1rem; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.flash { padding: .7rem 1rem; border-radius: 8px; margin: 0 0 1rem; }
.flash.ok { background: var(--ok-bg); color: var(--ok); }
.flash.err { background: var(--err-bg); color: var(--err); }

.drop {
  border: 2px dashed var(--line); border-radius: 12px; padding: 1.5rem 1rem; text-align: center;
}
.drop.over { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, transparent); }
.drop p { margin: .4rem 0; }

.queue, .files { list-style: none; margin: 0; padding: 0; }
.queue li { margin-top: .75rem; font-size: .9rem; }
.queue .row { display: flex; justify-content: space-between; gap: 1rem; }
.queue .row span:first-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.queue progress { width: 100%; height: .5rem; accent-color: var(--accent); }
.queue .failed { color: var(--err); }

.files li {
  display: flex; align-items: center; justify-content: space-between; gap: .75rem; flex-wrap: wrap;
  padding: .75rem 0; border-top: 1px solid var(--line);
}
.files li:first-child { border-top: 0; }
.files { margin-top: .75rem; }
.meta { min-width: 0; flex: 1 1 240px; display: flex; flex-direction: column; }
.name { font-weight: 600; overflow-wrap: anywhere; }
.actions { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; }
.actions form { margin: 0; }
.chip { font-size: .7rem; font-weight: 600; padding: .1rem .4rem; border: 1px solid var(--line); border-radius: 99px; color: var(--muted); }

.viewer .filename { overflow-wrap: anywhere; }
.viewer .actions { margin-top: 1rem; }
.preview { display: block; max-width: 100%; margin: 1rem auto 0; border-radius: 8px; }
img.preview, video.preview { max-height: 75vh; background: #000; }
audio.preview { width: 100%; }
.preview.doc { width: 100%; height: 75vh; border: 1px solid var(--line); background: #fff; }
.preview.text {
  max-height: 70vh; overflow: auto; padding: 1rem; margin-left: 0; margin-right: 0;
  background: var(--bg); border: 1px solid var(--line); font-size: .85rem; white-space: pre-wrap; overflow-wrap: anywhere;
}
.nopreview { padding: 2rem 1rem; text-align: center; color: var(--muted); border: 1px dashed var(--line); border-radius: 8px; }

.bulk { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; margin: 0; }
.check { display: inline-flex; align-items: center; gap: .4rem; margin: 0; color: var(--text); }
input[type=checkbox] { width: 1.1rem; height: 1.1rem; flex: none; accent-color: var(--accent); }
button:disabled { opacity: .5; cursor: default; }
button:disabled:hover { border-color: var(--line); }