:root {
  --bg: #f5f6f8; --panel: #ffffff; --text: #1d2330; --muted: #6b7385; --border: #dfe3ea;
  --accent: #2f6fde; --accent-text: #ffffff; --accent-soft: #e6eefc; --ok: #1f9d55; --warn: #c98a00;
  --err: #d23b3b; --shadow: 0 1px 2px rgba(20, 30, 50, .06), 0 4px 16px rgba(20, 30, 50, .05);
  --radius: 12px; --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171d; --panel: #1c2028; --text: #e6e9ef; --muted: #959cab; --border: #2c323d;
    --accent: #5b8ff0; --accent-text: #0e1420; --accent-soft: #232f45; --ok: #3fbf7a; --warn: #e0a72a;
    --err: #ef6464; --shadow: none;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg); color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--accent); }

header {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 12px 20px; background: var(--panel); border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; font-size: 18px; display: flex; align-items: center; gap: 8px; }
.brand svg { width: 22px; height: 22px; color: var(--accent); }
nav { display: flex; gap: 4px; flex-wrap: wrap; }
nav button {
  border: 0; background: none; padding: 6px 12px; border-radius: 8px; cursor: pointer; color: var(--muted);
}
nav .navlink { padding: 6px 12px; color: var(--muted); text-decoration: none; border-radius: 8px; }
nav .navlink:hover { color: var(--accent); }
nav button.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.status { margin-left: auto; display: flex; gap: 12px; font-size: 13px; color: var(--muted); align-items: center; }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--muted); margin-right: 5px; }
.dot.ok { background: var(--ok); } .dot.bad { background: var(--err); } .dot.busy { background: var(--warn); }
.linkbtn { border: 0; background: none; color: var(--muted); cursor: pointer; padding: 4px; text-decoration: underline; }

main { max-width: 1200px; margin: 0 auto; padding: 20px; }
.tab[hidden] { display: none; }

.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
select, input[type=text], input[type=number], input[type=password] {
  background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 7px 10px; min-width: 0;
}
select { min-width: 170px; }
.iconbtn {
  border: 1px solid var(--border); background: var(--panel); border-radius: 8px; width: 38px; height: 36px;
  cursor: pointer; display: grid; place-items: center;
}
.iconbtn:hover { border-color: var(--accent); }
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 9px; overflow: hidden; background: var(--panel); }
.seg button { border: 0; background: none; padding: 7px 14px; cursor: pointer; color: var(--muted); }
.seg button.active { background: var(--accent); color: var(--accent-text); }
.seg button + button { border-left: 1px solid var(--border); }
.hint { font-size: 13px; color: var(--muted); }
.spacer { flex: 1; }

.panes { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.pane {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); display: flex; flex-direction: column; min-height: 320px;
}
.pane textarea, .pane .out {
  flex: 1; border: 0; background: none; resize: vertical; padding: 14px 16px; min-height: 280px;
  font-size: 16px; line-height: 1.55; outline: none; white-space: pre-wrap; overflow-wrap: anywhere;
}
.pane .out { overflow: auto; max-height: 70vh; }
.pane .out.placeholder { color: var(--muted); }
.pane footer {
  display: flex; align-items: center; gap: 8px; padding: 8px 12px; border-top: 1px solid var(--border);
  font-size: 13px; color: var(--muted); min-height: 46px;
}
.btn {
  border: 1px solid var(--border); background: var(--panel); border-radius: 8px; padding: 7px 14px; cursor: pointer;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 600; }
.btn:disabled { opacity: .55; cursor: default; }
.btn.danger { color: var(--err); }
.cursor::after { content: "▍"; color: var(--accent); animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }

h2 { font-size: 17px; margin: 28px 0 10px; }
.history { display: grid; gap: 6px; }
.history button {
  text-align: left; border: 1px solid var(--border); background: var(--panel); border-radius: 8px;
  padding: 8px 12px; cursor: pointer; display: grid; grid-template-columns: 70px 1fr 1fr; gap: 12px;
  font-size: 13px;
}
.history button span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.history .lang { color: var(--muted); }

.drop {
  border: 2px dashed var(--border); border-radius: var(--radius); padding: 36px 20px; text-align: center;
  background: var(--panel); cursor: pointer; transition: border-color .15s;
}
.drop.over, .drop:hover { border-color: var(--accent); }
.drop strong { display: block; font-size: 16px; margin-bottom: 4px; }
table { width: 100%; border-collapse: collapse; background: var(--panel); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--border); font-size: 14px; vertical-align: middle; }
th { color: var(--muted); font-weight: 500; font-size: 13px; }
tr:last-child td { border-bottom: 0; }
.bar { height: 6px; background: var(--border); border-radius: 3px; overflow: hidden; min-width: 80px; }
.bar i { display: block; height: 100%; background: var(--accent); transition: width .3s; }
.err { color: var(--err); }
.keybox {
  font-family: var(--mono); background: var(--accent-soft); padding: 10px 12px; border-radius: 8px;
  overflow-wrap: anywhere; margin: 10px 0;
}
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow); }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.empty { color: var(--muted); padding: 14px 0; }
.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: var(--text); color: var(--bg);
  padding: 8px 16px; border-radius: 8px; font-size: 14px; opacity: 0; transition: opacity .2s; pointer-events: none;
}
.toast.show { opacity: .95; }

/* login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login form { width: 100%; max-width: 340px; display: grid; gap: 12px; }
.login h1 { font-size: 20px; margin: 0 0 4px; display: flex; gap: 8px; align-items: center; }

/* api docs */
.doc { max-width: 900px; }
.doc pre { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 12px; overflow-x: auto; font: 13px/1.5 var(--mono); }
.doc code { font-family: var(--mono); font-size: 13px; background: var(--accent-soft); padding: 1px 5px; border-radius: 4px; }
.doc pre code { background: none; padding: 0; }
.doc h2 { margin-top: 32px; }
.doc td code { white-space: nowrap; }

@media (max-width: 760px) {
  header { padding: 10px 16px; gap: 10px; }
  main { padding: 16px; }
  .panes { grid-template-columns: 1fr; }
  .status { margin-left: 0; width: 100%; }
  select { min-width: 0; flex: 1; }
  .history button { grid-template-columns: 1fr; gap: 2px; }
  .hide-sm { display: none; }
}