:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --ink: #1f2937;
  --muted: #667085;
  --line: #d8dee9;
  --panel: #ffffff;
  --accent: #1267d6;
  --accent-2: #0f8b6f;
  --danger: #bd3b3b;
  --shadow: 0 18px 50px rgba(31, 41, 55, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", Arial, sans-serif;
}

button,
input,
select {
  font: inherit;
}

.app-shell {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

h1 {
  margin: 0;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: 0;
}

.topbar p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.engine-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.engine-strip span {
  min-width: 88px;
  border: 1px solid var(--line);
  background: #eef4ff;
  color: #18437a;
  padding: 7px 10px;
  border-radius: 8px;
  text-align: center;
  font-size: 13px;
}

.engine-strip .ok {
  background: #ebf8f2;
  color: #126149;
  border-color: #bce4d3;
}

.engine-strip .bad {
  background: #fff1f1;
  color: var(--danger);
  border-color: #efcaca;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  min-height: 0;
}

.conversation {
  overflow-y: auto;
  padding: 24px;
}

.message {
  max-width: 820px;
  margin: 0 0 14px;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 6px 22px rgba(31, 41, 55, 0.05);
  line-height: 1.55;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.message.user {
  margin-left: auto;
  border-color: #c7d7f6;
  background: #f1f6ff;
}

.message.assistant {
  margin-right: auto;
}

.message.pending {
  color: var(--muted);
}

.sidepanel {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 20px;
  border-left: 1px solid var(--line);
  background: #fbfcfe;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
}

select,
input[type="text"],
input[type="password"],
.composer input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  min-height: 40px;
  padding: 8px 10px;
}

input[type="range"] {
  width: 100%;
}

.toggle-row {
  display: flex;
  align-items: center;
  grid-template-columns: none;
  gap: 10px;
  color: var(--ink);
}

.toggle-row input {
  width: 18px;
  height: 18px;
}

.live-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f6faf8;
  padding: 10px;
}

.live-card strong,
.live-card span {
  display: block;
}

.live-card strong {
  font-size: 13px;
}

.live-card span {
  min-height: 38px;
  margin-top: 5px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.model-paths {
  display: grid;
  gap: 9px;
  margin-top: auto;
}

.model-paths div {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 10px;
}

.model-paths strong,
.model-paths span {
  display: block;
  overflow-wrap: anywhere;
}

.model-paths strong {
  font-size: 13px;
}

.model-paths span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.composer {
  display: grid;
  grid-template-columns: 132px 96px minmax(0, 1fr) 96px;
  gap: 10px;
  padding: 14px 24px;
  border-top: 1px solid var(--line);
  background: var(--panel);
}

button {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  cursor: pointer;
}

button:hover {
  border-color: #9aa8bd;
}

button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
  box-shadow: var(--shadow);
}

button.listening {
  border-color: var(--accent-2);
  background: var(--accent-2);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

@media (max-width: 860px) {
  .topbar,
  .workspace,
  .composer {
    grid-template-columns: 1fr;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .workspace {
    display: flex;
    flex-direction: column;
  }

  .sidepanel {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .composer {
    display: grid;
    padding: 12px;
  }
}