:root {
  --bg: #f6f7f9; --surface: #fff; --text: #16181d; --muted: #646b78; --border: #e1e4ea;
  --accent: #1f6feb; --accent-text: #fff; --danger: #c93c37; --ok: #1a7f37; --code: #f0f2f5;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115; --surface: #171a20; --text: #e7e9ee; --muted: #9098a6; --border: #2a2f38;
    --accent: #4c8dff; --accent-text: #0b0d10; --danger: #ff6b66; --ok: #3fb950; --code: #1e222a;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
main { max-width: 1040px; margin: 0 auto; padding: 8px 16px 64px; }
h1 { font-size: 26px; margin: 16px 0 8px; }
h2 { font-size: 18px; margin: 0 0 6px; }
a { color: var(--accent); }
.muted { color: var(--muted); }
.top { display: flex; align-items: center; gap: 10px; padding: 14px 16px; max-width: 1040px; margin: 0 auto; }
.brand { font-weight: 700; color: var(--text); text-decoration: none; font-size: 17px; }
.brand span { color: var(--muted); font-weight: 500; }
.logout { margin: 0 0 0 auto; }
form.card.login { max-width: 360px; margin: 48px auto; display: flex; flex-direction: column; gap: 16px; }
form.card.login h1 { margin: 0; }
.badge { font-size: 12px; padding: 2px 8px; border-radius: 99px; border: 1px solid var(--border); color: var(--muted); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 18px; margin: 16px 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.tool { display: block; color: inherit; text-decoration: none; margin: 0; transition: border-color .15s; }
.tool:hover { border-color: var(--accent); }
.tool p { margin: 0; color: var(--muted); }
form.card { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
form .wide { grid-column: 1 / -1; }
label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
label.check { flex-direction: row; align-items: center; gap: 8px; color: var(--text); font-size: 14px; }
input, textarea, select { font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; padding: 9px 11px; width: 100%; }
input:focus, textarea:focus, select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
label.check input { width: auto; }
textarea { resize: vertical; }
button, .btn { font: inherit; font-weight: 600; cursor: pointer; border: 1px solid var(--accent); background: var(--accent);
  color: var(--accent-text); border-radius: 8px; padding: 8px 14px; text-decoration: none; display: inline-block; white-space: nowrap; }
button.ghost, .btn.ghost { background: transparent; color: var(--accent); }
button:disabled { opacity: .55; cursor: progress; }
.small { padding: 4px 10px; font-size: 13px; font-weight: 500; }
button.danger { background: transparent; border-color: var(--border); color: var(--danger); }
.actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.progress { height: 6px; background: var(--code); border-radius: 99px; overflow: hidden; }
.progress div { height: 100%; width: 0; background: var(--accent); transition: width .3s; }
.error { color: var(--danger); }
.result-head { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; align-items: flex-start; }
.buttons { display: flex; gap: 8px; flex-wrap: wrap; }
.table-wrap { overflow-x: auto; margin-top: 12px; max-height: 520px; overflow-y: auto; border: 1px solid var(--border); border-radius: 8px; }
table { border-collapse: collapse; width: 100%; font-size: 13.5px; }
th, td { text-align: left; vertical-align: top; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { position: sticky; top: 0; background: var(--surface); color: var(--muted); font-weight: 600; }
td.text { white-space: pre-line; min-width: 280px; }
td.nowrap { white-space: nowrap; }
.history { display: flex; flex-direction: column; gap: 8px; }
.h-item { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 10px 14px; }
.h-item .meta { font-size: 13px; color: var(--muted); }
.h-item .buttons { gap: 6px; }
@media (max-width: 680px) {
  form.card { grid-template-columns: 1fr; }
  h1 { font-size: 22px; }
}