:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #16181d;
  --muted: #5d6470;
  --line: #e3e6eb;
  --accent: #2f6fed;
  --accent-text: #ffffff;
  --ok: #1f9d55;
  --warn: #c27c0e;
  --err: #d14343;
  --user: #eef3ff;
  --bot: #f1f2f4;
  --switch-off: #cfd4dc;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --card: #171a21;
    --text: #e8eaed;
    --muted: #9aa1ad;
    --line: #2a2f39;
    --accent: #5b8ef5;
    --user: #1c2742;
    --bot: #1f232b;
    --switch-off: #3a404c;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
.wrap { max-width: 640px; margin: 0 auto; padding: 24px 16px 48px; }
h1 { font-size: 1.6rem; margin: 0 0 4px; }
h2 { font-size: 1.05rem; margin: 0 0 8px; }
.sub, .muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  margin-top: 16px;
}
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
input, select {
  flex: 1 1 200px;
  min-width: 0;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--text);
  font: inherit;
}
select { width: 100%; cursor: pointer; }
label { display: block; font-weight: 600; margin-bottom: 6px; }
.btn {
  padding: 10px 16px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text);
  font: inherit;
  cursor: pointer;
}
.btn:disabled { opacity: 0.55; cursor: default; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.ghost { background: transparent; }
.btn.big { width: 100%; padding: 16px; font-size: 1.1rem; font-weight: 600; margin: 12px 0 4px; }
.btn.danger { background: var(--err); border-color: var(--err); color: #fff; }
.hint { margin: 4px 0 0; font-size: 0.85rem; color: var(--muted); }
.status-line { display: flex; align-items: center; gap: 8px; font-weight: 600; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--muted); }
.dot.live { background: var(--ok); animation: pulse 1.4s infinite; }
.dot.busy { background: var(--warn); }
.dot.err { background: var(--err); }
.dot.wait { background: var(--accent); }
.dot.think { background: var(--warn); animation: pulse 0.8s infinite; }
.dot.speak { background: var(--accent); animation: pulse 0.6s infinite; }
.call .row { margin-top: 8px; }
.call .row .btn { flex: 1 1 140px; }
.settings { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin: 16px 0 12px; }
.settings select { width: 100%; }
input[type="range"] { width: 100%; padding: 0; border: 0; background: none; accent-color: var(--accent); }
.small-btn { padding: 4px 10px; font-size: 0.85rem; }
.card > .row + .settings, .card > .hint + .row { margin-top: 8px; }
@keyframes pulse { 50% { opacity: 0.35; } }

/* A setting row: what it does on the left, an on/off switch on the right. */
.setting {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  margin: 16px 0 0; padding-top: 14px; border-top: 1px solid var(--line);
  font-weight: normal; cursor: pointer;
}
.setting-text { display: flex; flex-direction: column; min-width: 0; }
.setting-title { font-weight: 600; }
.setting .hint { margin: 2px 0 0; }
.switch {
  appearance: none; -webkit-appearance: none;
  flex: 0 0 auto; width: 52px; height: 30px; min-width: 52px;
  margin: 0; padding: 0; border: 0; border-radius: 999px;
  background: var(--switch-off); position: relative; cursor: pointer;
  transition: background 0.2s ease;
}
.switch::before {
  content: ""; position: absolute; top: 3px; left: 3px;
  width: 24px; height: 24px; border-radius: 50%;
  background: #fff; box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  transition: transform 0.2s ease;
}
.switch:checked { background: var(--ok); }
.switch:checked::before { transform: translateX(22px); }
.switch:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

h2 label { display: inline; margin: 0; font-weight: inherit; }
.voice-pick { flex-wrap: nowrap; }
.voice-pick select { flex: 1 1 0; width: auto; }
.voice-pick .btn { flex: 0 0 auto; white-space: nowrap; }
.btn.wide { width: 100%; margin-top: 8px; }
.label-row { display: flex; justify-content: space-between; align-items: baseline; margin-top: 4px; }
.label-row label { margin-bottom: 6px; }
.google-head { display: flex; justify-content: space-between; align-items: center; }
.pill { font-size: 0.8rem; padding: 2px 10px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); }
.pill.ok { color: var(--ok); border-color: var(--ok); }
.pill.partial { color: var(--warn); border-color: var(--warn); }
.log { max-height: 50vh; overflow-y: auto; display: flex; flex-direction: column; gap: 8px; }
.msg { padding: 8px 12px; border-radius: 12px; max-width: 90%; white-space: pre-wrap; word-wrap: break-word; }
.msg.user { background: var(--user); align-self: flex-end; }
.msg.assistant { background: var(--bot); align-self: flex-start; }
.msg.system { color: var(--muted); font-size: 0.85rem; align-self: center; background: none; }
.empty { margin: 0; }
footer { margin-top: 20px; text-align: center; }

/* Delivery prompt picker */
.prompt-pick { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line); }
.prompt-pick select { width: 100%; }