* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #0f1420; --panel: #171e2e; --panel2: #1e2740; --text: #e6eaf3;
  --muted: #8b94ab; --accent: #4f8cff; --green: #2ecc71; --red: #e74c3c;
  --border: #2a3550;
}
body {
  background: var(--bg); color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif;
  min-height: 100vh; display: flex; flex-direction: column;
}
header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px; border-bottom: 1px solid var(--border); background: var(--panel);
  flex-wrap: wrap; gap: 8px;
}
h1 { font-size: 20px; }
h2 { font-size: 15px; margin-bottom: 10px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.status { display: flex; gap: 8px; flex-wrap: wrap; }
.pill {
  background: var(--panel2); border: 1px solid var(--border); border-radius: 999px;
  padding: 4px 12px; font-size: 13px; color: var(--muted);
}
.pill.ok { color: var(--green); border-color: var(--green); }
.pill.bad { color: var(--red); border-color: var(--red); }
.pill.busy { color: var(--accent); border-color: var(--accent); }

main {
  display: grid; grid-template-columns: 300px 1fr 360px; gap: 16px;
  padding: 16px 22px; flex: 1; align-items: start;
}
@media (max-width: 1100px) { main { grid-template-columns: 1fr; } }

.panel {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  padding: 16px;
}
.panel.grow { display: flex; flex-direction: column; min-height: 70vh; }

.row { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.row.small { opacity: .9; }
input, select, textarea {
  background: var(--panel2); color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 10px; font: inherit; flex: 1; min-width: 0; width: 100%;
}
input:focus, select:focus, textarea:focus { outline: 1px solid var(--accent); }
button {
  background: var(--panel2); color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 14px; font: inherit; cursor: pointer; white-space: nowrap;
}
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.danger { background: transparent; border-color: var(--red); color: var(--red); }
button.mini { padding: 2px 8px; font-size: 12px; }
button.wide { width: 100%; margin-top: 14px; }

#transcript {
  flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 8px;
  padding: 8px 4px; min-height: 300px;
}
.msg { max-width: 82%; padding: 9px 13px; border-radius: 14px; white-space: pre-wrap; }
.msg.user { align-self: flex-end; background: var(--accent); color: #fff; border-bottom-right-radius: 4px; }
.msg.assistant { align-self: flex-start; background: var(--panel2); border-bottom-left-radius: 4px; }
.msg.system { align-self: center; background: none; color: var(--muted); font-size: 12.5px; }
.msg.error { align-self: center; color: var(--red); font-size: 13px; }

details { margin-bottom: 12px; border: 1px solid var(--border); border-radius: 10px; padding: 8px 12px; }
summary { cursor: pointer; color: var(--text); font-weight: 600; padding: 4px 0; }
label { display: block; margin: 10px 0 0; font-size: 13px; color: var(--muted); }
label input, label select, label textarea { margin-top: 4px; display: block; }
label.check { display: flex; align-items: center; gap: 8px; }
label.check input { width: auto; flex: 0; display: inline; }

/* dial pad */
.dialpad { display: flex; flex-direction: column; gap: 12px; }
#number {
  font-size: 22px; text-align: center; letter-spacing: 1px; padding: 12px;
  font-variant-numeric: tabular-nums;
}
.keys { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.key {
  aspect-ratio: 1.4 / 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center; font-size: 22px; gap: 1px;
  background: var(--panel2); border: 1px solid var(--border); border-radius: 12px;
  user-select: none; transition: background .08s, transform .05s;
}
.key span { font-size: 9px; letter-spacing: 1.5px; color: var(--muted); min-height: 10px; }
.key:hover { background: #26314e; }
.key:active, .key.pressed { background: var(--accent); border-color: var(--accent); transform: scale(0.96); }
.dial-actions { display: grid; grid-template-columns: 1fr 2fr 1fr; gap: 8px; align-items: stretch; }
.key.wide { aspect-ratio: auto; font-size: 20px; }
.call-btn {
  background: var(--green); border: none; color: #fff; font-size: 16px;
  font-weight: 600; border-radius: 12px; padding: 12px;
}
.call-btn:hover { filter: brightness(1.08); }
.call-btn:disabled { opacity: .5; cursor: default; }
.hangup-btn {
  background: transparent; border: 1px solid var(--red); color: var(--red);
  border-radius: 12px; font-size: 14px;
}
.hangup-btn:hover { background: var(--red); color: #fff; }

#toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
  background: var(--panel2); border: 1px solid var(--accent); border-radius: 10px;
  padding: 10px 18px; opacity: 0; transition: opacity .25s; pointer-events: none;
  max-width: 80vw;
}
#toast.show { opacity: 1; }
#toast.err { border-color: var(--red); color: var(--red); }