:root {
  --bg: #F3F5FA; --card: #FFFFFF; --border: #E4E8F1; --text: #1B2033; --muted: #6B7385;
  --accent: #5B5BF0; --accent-soft: #ECECFE; --chip: #EEF0F7; --track: #E8EBF3;
  --male: #2F74E0; --female: #E0457B; --unisex: #D08A00; --unknown: #8A93A6;
  --ok: #16A34A; --bad: #DC2626; --input: #F7F8FC;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11131A; --card: #1A1D28; --border: #272C3B; --text: #E7EAF3; --muted: #8D94A8;
    --accent: #7A7AFF; --accent-soft: #262A48; --chip: #232736; --track: #2A2F40;
    --male: #5B9BFF; --female: #FF6B9A; --unisex: #F2B33D; --ok: #34D399; --bad: #F87171; --input: #141722;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.5 system-ui, "Segoe UI", Roboto, "Noto Sans Bengali", "Nirmala UI", sans-serif; }
.wrap { max-width: 980px; margin: 0 auto; padding: 24px 16px 64px; }
header { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
h1 { font-size: 22px; margin: 0; font-weight: 650; }
.status { display: flex; gap: 6px; flex-wrap: wrap; margin-left: auto; }
.badge { font-size: 12px; padding: 3px 9px; border-radius: 99px; background: var(--chip); color: var(--muted); }
.badge.on { color: var(--ok); } .badge.off { color: var(--bad); }
.tabs { display: flex; gap: 4px; margin-bottom: 16px; }
.tab { border: 0; background: transparent; color: var(--muted); padding: 8px 14px; border-radius: 8px; cursor: pointer; font: inherit; }
.tab.active { background: var(--card); color: var(--text); box-shadow: 0 1px 2px rgba(0,0,0,.06); }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 18px; margin-bottom: 14px; }
textarea, input[type=text], input[type=password] { width: 100%; background: var(--input); color: var(--text);
  border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; font: inherit; }
textarea { min-height: 96px; resize: vertical; font-size: 17px; }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-top: 12px; }
button.primary { background: var(--accent); color: #fff; border: 0; border-radius: 10px; padding: 9px 18px; font: inherit; font-weight: 600; cursor: pointer; }
button.primary:disabled { opacity: .5; cursor: wait; }
label.chk { display: flex; gap: 6px; align-items: center; color: var(--muted); font-size: 14px; }
.result { display: grid; grid-template-columns: 1fr auto; gap: 6px 16px; }
.names .main { font-size: 20px; font-weight: 600; }
.names .alt { color: var(--muted); font-size: 15px; }
.pill { font-weight: 700; padding: 4px 14px; border-radius: 99px; color: #fff; align-self: start; justify-self: end; }
.Male { background: var(--male); } .Female { background: var(--female); } .Unisex { background: var(--unisex); } .Unknown { background: var(--unknown); }
.bar { grid-column: 1 / -1; height: 6px; background: var(--track); border-radius: 99px; overflow: hidden; }
.bar > div { height: 100%; background: var(--accent); }
.meta { grid-column: 1 / -1; color: var(--muted); font-size: 13px; display: flex; gap: 14px; flex-wrap: wrap; }
.meta b { color: var(--text); font-weight: 600; }
.fb { grid-column: 1 / -1; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.fb button { border: 1px solid var(--border); background: var(--chip); color: var(--text); border-radius: 8px; padding: 4px 12px; cursor: pointer; font: inherit; font-size: 14px; }
.fb .saved { color: var(--ok); font-size: 13px; }
details { grid-column: 1 / -1; font-size: 13px; }
summary { cursor: pointer; color: var(--muted); }
table { width: 100%; border-collapse: collapse; margin-top: 8px; }
td, th { text-align: left; padding: 4px 6px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 500; }
td.num { font-variant-numeric: tabular-nums; text-align: right; }
tr.unused { opacity: .45; }
.err { color: var(--bad); }
.hidden { display: none; }
.muted { color: var(--muted); font-size: 13px; }
@media (max-width: 560px) { .result { grid-template-columns: 1fr; } .pill { justify-self: start; } }
.w-country { width: 130px; } .w-column { width: 220px; }
.notice { font-size: 13px; color: var(--muted); background: var(--chip); border-radius: 10px; padding: 8px 12px; margin-top: 12px; }
footer { margin-top: 28px; color: var(--muted); font-size: 12px; text-align: center; }