* { box-sizing: border-box; }

:root {
  --bg: #10131a;
  --card: #1c2230;
  --line: #39465a;
  --field: #111827;
  --muted: #cbd5e1;
  --accent: #93c5fd;
  --primary: #2563eb;
  --ok: #22c55e;
  --bad: #f87171;
}

body {
  margin: auto;
  padding: 16px 16px 40px;
  max-width: 760px;
  background: var(--bg);
  color: #f1f5f9;
  font-family: Vazirmatn, Tahoma, Arial, sans-serif;
  line-height: 1.8;
}

h1, h2 { color: var(--accent); margin: 0 0 8px; }
h1 { font-size: 22px; }
h2 { font-size: 17px; }

section, .card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 15px;
  margin: 14px 0;
}

section.locked { opacity: .5; pointer-events: none; }
section.done { border-color: var(--ok); }

button, input, select { font: inherit; max-width: 100%; }

button {
  border: 0;
  border-radius: 9px;
  padding: 10px 14px;
  margin: 5px 0;
  color: #fff;
  background: var(--primary);
  cursor: pointer;
}
button.secondary { background: #334155; }
button.danger { background: #b91c1c; }
button.small { padding: 4px 10px; font-size: 13px; margin: 0; }
button:disabled { opacity: .45; cursor: not-allowed; }

input[type=file], input[type=text], input[type=password], input[type=number], select {
  width: 100%;
  padding: 10px;
  margin: 6px 0;
  color: #fff;
  background: var(--field);
  border: 1px solid #475569;
  border-radius: 8px;
}
input[type=checkbox] { width: 18px; height: 18px; vertical-align: middle; margin-inline-end: 6px; }
label.row { display: block; margin: 8px 0; }

video, img.preview {
  display: block;
  width: 100%;
  max-height: 380px;
  margin-top: 10px;
  border-radius: 10px;
  background: #05070a;
  object-fit: contain;
}

.result {
  background: #0f172a;
  border-radius: 10px;
  padding: 12px;
  margin-top: 10px;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.big { font-size: 30px; font-weight: bold; color: var(--accent); }
.code { font-size: 34px; letter-spacing: 6px; font-weight: bold; color: var(--accent); direction: ltr; }
.small { color: var(--muted); font-size: 13px; overflow-wrap: anywhere; }
.ok { color: var(--ok); }
.bad { color: var(--bad); }
.hidden { display: none !important; }
.row2 { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.row2 > * { flex: 1 1 140px; }

table { width: 100%; border-collapse: collapse; font-size: 14px; margin-top: 8px; }
th, td { padding: 6px 8px; border-bottom: 1px solid var(--line); text-align: right; vertical-align: middle; }
th { color: var(--accent); font-weight: normal; }
.tablewrap { overflow-x: auto; }

a { color: var(--accent); }
.tag { display: inline-block; padding: 0 8px; border-radius: 999px; font-size: 12px; }
.tag.on { background: #14532d; color: #bbf7d0; }
.tag.off { background: #334155; color: #cbd5e1; }