:root {
  /* rflab.io palette */
  --bg: #070a0e;
  --bg-2: #0b1117;
  --panel: #101820;
  --panel-2: #14202a;
  --line: rgba(255, 255, 255, .08);
  --line-2: rgba(255, 255, 255, .15);
  --text: #e6edf5;
  --muted: #93a1b1;
  --muted-2: #5f6b78;
  --signal: #2de2a6;
  --cyan: #38c7e6;
  --accent: #38c7e6;     /* links / focus = cyan */
  --green: #2de2a6;      /* transcribed / connected = signal green */
  --amber: #ffb454;
  --violet: #a78bfa;
  --red: #ff5d6c;
  --grad: linear-gradient(90deg, var(--signal), var(--cyan));
  --mono: ui-monospace, "Cascadia Code", "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}
/* static rflab.io signal glow (no animation) */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(120% 80% at 50% -10%, rgba(45, 226, 166, .10), transparent 60%),
    radial-gradient(100% 60% at 100% 0%, rgba(56, 199, 230, .06), transparent 55%);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand { display: flex; align-items: center; gap: 10px; }
.logo { font-size: 22px; }
.logo-mark { width: 30px; height: 30px; display: block; border-radius: 8px; }
.topbar h1 { font-size: 18px; margin: 0; font-weight: 750; letter-spacing: .02em; }
.accent {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.meta { display: flex; align-items: center; gap: 10px; }
.model { font-family: var(--mono); font-size: 12px; color: var(--muted); }

.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.dot-off { background: var(--red); box-shadow: 0 0 8px var(--red); }
.dot-on { background: var(--green); box-shadow: 0 0 8px var(--green); }

.toolbar {
  position: sticky;
  top: 53px;
  z-index: 9;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(10px);
}

.feeds {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  overflow-x: auto;
  border-bottom: 1px solid var(--line);
}
.feed-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--muted);
  border-radius: 999px;
  padding: 6px 13px;
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
  transition: color .12s, border-color .12s;
}
.feed-pill:hover { color: var(--text); border-color: var(--line-2); }
.feed-pill.active {
  color: #04130d;
  background: var(--grad);
  border-color: transparent;
  font-weight: 650;
}
.feed-pill .pill-count {
  font-family: var(--mono);
  font-size: 11px;
  opacity: .85;
}

.controls {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
}
.controls input[type="search"] {
  flex: 1;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  padding: 9px 12px;
  font-size: 14px;
  outline: none;
}
.controls input[type="search"]:focus { border-color: var(--accent); }
.toggle { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 6px; white-space: nowrap; }
.count { font-size: 12px; color: var(--muted); font-family: var(--mono); }

.feed { max-width: 1000px; margin: 0 auto; padding: 16px 18px 80px; display: flex; flex-direction: column; gap: 10px; }

.call {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
  animation: fade 0.25s ease;
}
@keyframes fade { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }

.call.s-transcribed { border-left-color: var(--green); }
.call.s-error { border-left-color: var(--red); }
.call.s-queued, .call.s-processing { border-left-color: var(--accent); }
.call.s-empty, .call.s-skipped, .call.s-filtered { border-left-color: var(--muted); opacity: .82; }

.call-head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 6px; }
.tg { font-weight: 650; font-size: 15px; }
.tg-group { color: var(--muted); font-size: 12px; }
.spacer { flex: 1; }
.time { font-family: var(--mono); font-size: 12px; color: var(--muted); }

.badge {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: .5px;
  padding: 2px 7px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
}
.badge.transcribed { color: var(--green); border-color: var(--green); }
.badge.error { color: var(--red); border-color: var(--red); }
.badge.queued, .badge.processing { color: var(--accent); border-color: var(--accent); }

.transcript { font-size: 15px; line-height: 1.45; margin: 4px 0 8px; }
.transcript.muted { color: var(--muted); font-style: italic; font-size: 13.5px; }

.sub { display: flex; gap: 14px; flex-wrap: wrap; color: var(--muted); font-size: 12px; font-family: var(--mono); margin-bottom: 8px; }

audio { width: 100%; height: 34px; filter: invert(.92) hue-rotate(180deg); }

.empty { text-align: center; color: var(--muted); padding: 48px 16px; font-size: 14px; }
.hidden { display: none !important; }

/* links + admin tag */
.link { color: var(--accent); text-decoration: none; font-size: 12px; opacity: .85; }
.link:hover { opacity: 1; text-decoration: underline; }
.admin-tag {
  font-size: 10px; text-transform: uppercase; letter-spacing: .6px;
  color: var(--amber); border: 1px solid var(--amber); border-radius: 999px;
  padding: 1px 7px; margin-left: 4px;
}

/* delete button on a card */
.del {
  background: transparent; border: 1px solid var(--line); color: var(--muted);
  border-radius: 6px; width: 24px; height: 22px; line-height: 1; cursor: pointer;
  font-size: 12px; margin-left: 8px; transition: all .12s;
}
.del:hover { color: #fff; background: var(--red); border-color: var(--red); }

/* clear-all (danger) */
.danger {
  background: transparent; border: 1px solid var(--red); color: var(--red);
  border-radius: 8px; padding: 8px 12px; font-size: 13px; cursor: pointer; white-space: nowrap;
}
.danger:hover { background: var(--red); color: #fff; }

/* admin login overlay */
.login {
  position: fixed; inset: 0; background: rgba(8, 11, 16, .82);
  display: flex; align-items: center; justify-content: center; z-index: 50;
}
.login-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 26px 26px 22px; width: min(360px, 90vw); display: flex; flex-direction: column; gap: 12px;
}
.login-card h2 { margin: 0; font-size: 18px; }
.login-card p { margin: 0; color: var(--muted); font-size: 12.5px; line-height: 1.4; }
.login-card code { color: var(--accent); font-family: var(--mono); font-size: 12px; }
.login-card input {
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
  color: var(--text); padding: 10px 12px; font-size: 14px; outline: none;
}
.login-card input:focus { border-color: var(--accent); }
.login-card button {
  background: var(--accent); color: #04121b; border: 0; border-radius: 8px;
  padding: 10px; font-size: 14px; font-weight: 650; cursor: pointer;
}
.login-err { color: var(--red); font-size: 12.5px; min-height: 1em; }

/* ---- settings page ---- */
.settings { max-width: 820px; margin: 0 auto; padding: 18px 18px 96px; }
.settings-intro { color: var(--muted); font-size: 13px; line-height: 1.5; margin: 4px 0 18px; }
.settings-intro code, .locked-grid code { color: var(--accent); font-family: var(--mono); font-size: 12px; }

.setting-group {
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
  padding: 6px 16px 10px; margin-bottom: 14px;
}
.setting-group > h2 {
  font-size: 13px; text-transform: uppercase; letter-spacing: .5px; color: var(--accent);
  margin: 12px 2px 8px; font-weight: 650;
}
.setting-row {
  display: grid; grid-template-columns: 1fr 240px; gap: 14px; align-items: center;
  padding: 9px 2px; border-top: 1px solid var(--line);
}
.setting-row:first-of-type { border-top: 0; }
.setting-label label { font-size: 14px; }
.setting-help { color: var(--muted); font-size: 11.5px; margin-top: 2px; font-family: var(--mono); }
.setting-input { justify-self: stretch; }
.setting-input input[type="text"], .setting-input input[type="password"],
.setting-input input[type="number"], .setting-input select {
  width: 100%; background: var(--bg); border: 1px solid var(--line); border-radius: 7px;
  color: var(--text); padding: 7px 10px; font-size: 13px; outline: none; font-family: var(--mono);
}
.setting-input input:focus, .setting-input select:focus { border-color: var(--accent); }

/* toggle switch */
.switch { display: inline-flex; align-items: center; cursor: pointer; }
.switch input { display: none; }
.switch span {
  width: 40px; height: 22px; background: var(--panel-2); border: 1px solid var(--line);
  border-radius: 999px; position: relative; transition: background .15s;
}
.switch span::after {
  content: ""; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px;
  border-radius: 50%; background: var(--muted); transition: transform .15s, background .15s;
}
.switch input:checked + span { background: rgba(76, 194, 255, .25); border-color: var(--accent); }
.switch input:checked + span::after { transform: translateX(18px); background: var(--accent); }

.locked-note { margin-top: 18px; }
.locked-note h2 {
  font-size: 13px; text-transform: uppercase; letter-spacing: .5px; color: var(--muted);
  margin: 0 2px 8px; font-weight: 650;
}
.locked-grid {
  display: grid; grid-template-columns: auto 1fr; gap: 6px 12px; align-items: center;
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px;
}
.locked-grid span { color: var(--muted); font-size: 12.5px; font-family: var(--mono); }

.savebar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 20;
  display: flex; align-items: center; gap: 14px; justify-content: flex-end;
  padding: 12px 20px; background: linear-gradient(0deg, var(--bg), rgba(12,15,20,.92));
  border-top: 1px solid var(--line);
}
.savebar .primary {
  background: var(--accent); color: #04121b; border: 0; border-radius: 8px;
  padding: 9px 18px; font-size: 14px; font-weight: 650; cursor: pointer;
}
.savebar .primary:disabled { opacity: .6; cursor: default; }
.savebar .ghost {
  background: transparent; border: 1px solid var(--line); color: var(--muted);
  border-radius: 8px; padding: 9px 14px; font-size: 13px; cursor: pointer; margin-right: auto;
}
.savebar .ghost:hover { color: var(--text); border-color: var(--muted); }
.save-status { font-size: 13px; }
.save-status.ok { color: var(--green); }
.save-status.err { color: var(--red); }

/* discovered channels table */
.chan-toolbar { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.chan-toolbar .ghost {
  background: transparent; border: 1px solid var(--line); color: var(--muted);
  border-radius: 8px; padding: 7px 13px; font-size: 13px; cursor: pointer;
}
.chan-toolbar .ghost:hover { color: var(--text); border-color: var(--line-2); }
.chan-table {
  width: 100%; border-collapse: collapse; background: var(--panel);
  border: 1px solid var(--line); border-radius: 12px; overflow: hidden;
}
.chan-table th {
  text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: .5px;
  color: var(--muted); font-weight: 600; padding: 10px 14px; border-bottom: 1px solid var(--line);
}
.chan-table td {
  padding: 9px 14px; border-top: 1px solid var(--line); font-size: 13.5px; vertical-align: middle;
}
.chan-table tbody tr:first-child td { border-top: 0; }
.chan-table td.mono { font-family: var(--mono); font-size: 12.5px; color: var(--muted); }
.chan-table td.muted, .chan-table .muted { color: var(--muted); }
.chan-table th.num, .chan-table td.num { text-align: right; }
.ch-del {
  background: transparent; border: 1px solid var(--line); color: var(--muted);
  border-radius: 6px; width: 26px; height: 24px; cursor: pointer; font-size: 12px;
}
.ch-del:hover { color: #fff; background: var(--red); border-color: var(--red); }

@media (max-width: 560px) {
  .setting-row { grid-template-columns: 1fr; gap: 6px; }
  .setting-input { justify-self: stretch; }
}

@media (max-width: 560px) {
  .controls { flex-wrap: wrap; }
  .toggle { order: 3; }
}