:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --card: #ffffff;
  --ink: #17202a;
  --muted: #4b5563;
  --line: #c9ced6;
  --accent: #0f766e;
  --bad: #a11212;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Noto Sans Arabic", "Noto Sans Devanagari",
    "Noto Sans Bengali", "Noto Sans Tamil", "Noto Sans Telugu", "Noto Sans Thai", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
}
:lang(ur) {
  font-family: "Noto Nastaliq Urdu", "Jameel Noor Nastaleeq", "Noto Naskh Arabic", "Geeza Pro", system-ui, sans-serif;
  line-height: 2;
}
:lang(ar) {
  font-family: "Noto Naskh Arabic", "Geeza Pro", "Segoe UI", system-ui, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); }
[hidden] { display: none !important; }
.top, main, footer { max-inline-size: 52rem; margin-inline: auto; padding-inline: 1rem; }
.top { display: flex; flex-wrap: wrap; gap: 0.75rem 1rem; justify-content: space-between; align-items: flex-end; padding-block: 1rem 0.5rem; }
h1 { margin: 0; font-size: 1.6rem; }
h2 { margin: 0 0 0.5rem; font-size: 1.1rem; }
h3 { margin: 0.75rem 0 0.25rem; font-size: 1rem; }
.tagline, .muted { color: var(--muted); margin: 0.25rem 0; }
.lang { display: grid; gap: 0.25rem; }
label { font-weight: 600; display: block; margin-block: 0.75rem 0.25rem; }
.lang label { margin-block: 0 0.25rem; }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: 0.75rem; padding: 1rem; margin-block: 0.75rem; min-inline-size: 0; }
select, input[type="number"] {
  font: inherit; color: inherit; background: #fff; border: 2px solid var(--line); border-radius: 0.5rem;
  padding: 0.4rem 0.6rem; inline-size: 100%; min-inline-size: 0; min-block-size: 2.75rem;
}
input[type="number"] { max-inline-size: 12rem; text-align: start; }
input[aria-invalid="true"] { border-color: var(--bad); }
button {
  font: inherit; font-weight: 600; min-block-size: 2.75rem; min-inline-size: 2.75rem; padding: 0.4rem 1rem;
  border-radius: 0.5rem; border: 2px solid var(--accent); background: var(--accent); color: #fff; cursor: pointer;
}
button.secondary { background: #fff; color: var(--accent); }
button:disabled { opacity: 0.55; cursor: not-allowed; }
:focus-visible { outline: 3px solid #f59e0b; outline-offset: 2px; }
.error { color: var(--bad); margin: 0.5rem 0 0; font-weight: 600; }
.actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-block: 0.5rem; }
.status { min-block-size: 1.5rem; margin: 0.25rem 0; color: var(--muted); }
.file-name { min-block-size: 1.5rem; margin: 0.25rem 0; overflow-wrap: anywhere; unicode-bidi: plaintext; }
.stat { font-size: 1.15rem; font-weight: 700; margin: 0.5rem 0 0.25rem; }
.segments { margin-block: 0.25rem; padding-inline-start: 1.25rem; max-block-size: 14rem; overflow: auto; }
footer { padding-block: 1rem 2rem; }
a { color: var(--accent); }
.noscript { padding: 1rem; background: #fff3cd; }
@media (max-width: 32rem) {
  .actions button { flex: 1 1 100%; }
  input[type="number"] { max-inline-size: none; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; animation: none !important; } }