:root {
  --bg: #f5f3ee;
  --card: #ffffff;
  --text: #1f2328;
  --muted: #6b6f76;
  --line: #e6e2d9;
  --accent: #b7791f;
  --accent-ink: #ffffff;
  --accent-soft: #fbf1df;
  --danger: #c0392b;
  --ok: #2f855a;
  --radius: 12px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171a;
    --card: #1e2125;
    --text: #e8e6e1;
    --muted: #9aa0a8;
    --line: #2e3238;
    --accent: #e0a54a;
    --accent-ink: #1a1408;
    --accent-soft: #2b2416;
    --danger: #ef7568;
    --ok: #68c08f;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "IBM Plex Sans Arabic", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.6;
}
.hidden { display: none !important; }
.muted { color: var(--muted); font-size: 13px; }
.error { color: var(--danger); min-height: 1.2em; margin: 0; }
h1, h2 { margin: 0 0 4px; line-height: 1.3; }
h1 { font-size: 22px; }
h2 { font-size: 18px; }

input, textarea, select {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  margin-top: 4px;
}
textarea { resize: vertical; }
input:focus, textarea:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 0; }
label { display: block; font-size: 13px; color: var(--muted); }

.btn, .gen-buttons button, .copy-btn, .pager button {
  font: inherit;
  cursor: pointer;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text);
  padding: 7px 16px;
}
.btn:hover, .pager button:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 600; }
.btn.danger { color: var(--danger); }
button:disabled { opacity: .5; cursor: wait; }

/* login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: 100%; max-width: 360px; display: grid; gap: 12px; }

/* layout */
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 16px; background: var(--card); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 5;
}
.brand { font-weight: 700; font-size: 17px; }
.topbar nav { display: flex; gap: 4px; }
.nav-btn { font: inherit; background: none; border: 0; color: var(--muted); padding: 6px 10px; border-radius: 8px; cursor: pointer; }
.nav-btn.active { color: var(--text); background: var(--accent-soft); font-weight: 600; }
.lang-btn {
  font: inherit; font-size: 13px; font-weight: 600; cursor: pointer;
  padding: 4px 12px; border-radius: 999px;
  border: 1px solid var(--accent); background: transparent; color: var(--accent);
}
.lang-btn:hover { background: var(--accent); color: var(--accent-ink); }
.login-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
main { max-width: 1000px; margin: 0 auto; padding: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin-bottom: 16px; }

/* tabs */
.tabs { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 12px; scrollbar-width: thin; }
.tab {
  flex: none; font: inherit; cursor: pointer; padding: 7px 14px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--card); color: var(--text);
  display: inline-flex; align-items: center; gap: 8px;
}
.tab .badge { font-size: 12px; background: var(--bg); color: var(--muted); border-radius: 999px; padding: 0 8px; min-width: 24px; text-align: center; }
.tab.active { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
.tab.active .badge { background: rgba(0,0,0,.15); color: inherit; }
.tab.off { opacity: .55; }

/* panel head + generate buttons */
.panel-head { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.gen { display: flex; align-items: center; gap: 8px; }
.gen-buttons { display: flex; gap: 4px; }
.gen-buttons button { width: 34px; height: 34px; padding: 0; font-weight: 600; }
.gen-buttons button:hover { background: var(--accent-soft); border-color: var(--accent); }
.status { min-height: 1.4em; margin: 8px 0 0; font-size: 13px; color: var(--muted); }
.status.ok { color: var(--ok); }
.status.err { color: var(--danger); }

/* table */
.table-wrap { overflow-x: auto; margin-top: 8px; }
table { width: 100%; border-collapse: collapse; }
th { text-align: start; font-size: 12px; color: var(--muted); font-weight: 500; padding: 8px; border-bottom: 1px solid var(--line); }
td { padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
.c-num { width: 36px; color: var(--muted); }
.c-date { width: 110px; white-space: nowrap; color: var(--muted); font-size: 12px; }
.c-act { width: 80px; }
.prompt-text { white-space: pre-wrap; word-break: break-word; font-size: 14px; }
.prompt-head { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-bottom: 6px; }
.prompt-title { font-size: 15px; }
.badge-hook, .badge-skill {
  font-size: 11px; line-height: 1.6; padding: 0 8px; border-radius: 999px; white-space: nowrap;
}
.badge-hook { background: var(--accent-soft); color: var(--accent); }
.badge-skill { border: 1px solid var(--line); color: var(--muted); }
.tag { font-size: 11px; color: var(--accent); margin-inline-start: 6px; }
.copy-btn { padding: 5px 12px; font-size: 13px; }
.copy-btn:hover { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
tr.leaving { opacity: 0; transition: opacity .25s; }
.empty { text-align: center; color: var(--muted); padding: 24px 8px; margin: 0; }

.pager { display: flex; gap: 4px; justify-content: center; flex-wrap: wrap; margin-top: 12px; }
.pager button { padding: 4px 11px; min-width: 36px; }
.pager button.current { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

/* settings */
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 12px 0; }
.grid > * { min-width: 0; }
.span2 { grid-column: span 2; }
.row { display: flex; gap: 8px; flex-wrap: wrap; }
.hint { font-size: 13px; color: var(--muted); background: var(--accent-soft); border-radius: 8px; padding: 8px 12px; }
.hint:empty { display: none; }
.field-hint { margin: 0; align-self: end; font-size: 12px; color: var(--muted); line-height: 1.5; }
.field-hint.err { color: var(--danger); }
.label-text { display: block; font-size: 13px; color: var(--muted); }
.endpoint code {
  display: block; margin-top: 4px; padding: 8px 10px; border-radius: 8px;
  background: var(--accent-soft); color: var(--text); font-size: 13px;
  overflow-wrap: anywhere; text-align: left;
}
.model-row { display: flex; gap: 8px; margin-top: 4px; }
.model-row select { margin-top: 0; flex: 1; min-width: 0; }
.model-row .btn { flex: none; }
#aiModel { margin-top: 8px; }
.key-link { font-size: 12px; color: var(--accent); margin-inline-start: 6px; }
.key-link[href=""], .key-link:not([href]) { display: none; }
#baseRules { margin: 10px 0; }
.prefix-field { margin-bottom: 4px; }
.prefix-field + .field-hint { margin-bottom: 12px; }
.channel-list { display: grid; gap: 10px; margin: 12px 0; }
.channel-item { border: 1px solid var(--line); border-radius: 10px; padding: 12px; display: grid; gap: 8px; }
.channel-item.add { border-style: dashed; }
.channel-item .row { align-items: center; }
.channel-item .check { display: flex; align-items: center; gap: 6px; color: var(--text); font-size: 14px; }
.channel-item .check input { width: auto; margin: 0; }
.logs td { font-size: 13px; }
.logs .err { color: var(--danger); }

.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--text); color: var(--bg); padding: 8px 18px; border-radius: 999px;
  opacity: 0; pointer-events: none; transition: all .2s; font-size: 14px; z-index: 10;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (max-width: 640px) {
  .grid { grid-template-columns: 1fr; }
  .span2 { grid-column: auto; }
  .c-date { display: none; }
  .panel-head { align-items: flex-start; }
  .brand { font-size: 15px; }
  .topbar { padding: 10px 12px; gap: 6px; }
  .topbar nav { gap: 2px; align-items: center; }
  .nav-btn { padding: 6px 7px; font-size: 14px; }
  .lang-btn { padding: 3px 9px; font-size: 12px; }
}
.brand, .nav-btn, .lang-btn { white-space: nowrap; }
@media (max-width: 420px) {
  .topbar { flex-wrap: wrap; }
  .topbar nav { width: 100%; justify-content: space-between; }
}