:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --panel: #ffffff;
  --ink: #17202a;
  --muted: #64707d;
  --line: #d8dee6;
  --green: #0f766e;
  --blue: #1f5fbf;
  --amber: #9a5b00;
  --danger: #b42318;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: 15px;
}

.topbar {
  align-items: center;
  background: #101820;
  color: #fff;
  display: flex;
  justify-content: space-between;
  min-height: 84px;
  padding: 18px 28px;
}

.eyebrow {
  color: #8fd6c8;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  margin: 0 0 4px;
  text-transform: uppercase;
}

h1,
h2 {
  letter-spacing: 0;
  margin: 0;
}

h1 {
  font-size: 26px;
  line-height: 1.1;
}

h2 {
  font-size: 17px;
}

.status {
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 8px;
  font-size: 13px;
  min-width: 112px;
  padding: 8px 10px;
  text-align: center;
}

.status.ok {
  background: rgba(15, 118, 110, 0.38);
}

.status.error {
  background: rgba(180, 35, 24, 0.42);
}

.shell {
  margin: 0 auto;
  max-width: 1180px;
  padding: 22px;
}

.settings {
  align-items: end;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(4, minmax(140px, 1fr)) auto;
  padding: 16px;
}

label {
  color: var(--muted);
  display: grid;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
}

input,
select,
textarea {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  font: inherit;
  min-height: 38px;
  padding: 8px 10px;
  width: 100%;
}

textarea {
  resize: vertical;
}

button {
  background: var(--blue);
  border: 0;
  border-radius: 6px;
  color: #fff;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  min-height: 38px;
  padding: 8px 14px;
}

button:hover {
  filter: brightness(0.95);
}

.tabs {
  display: flex;
  gap: 2px;
  margin-top: 18px;
}

.tab {
  background: #dde5ef;
  color: #243241;
  min-width: 116px;
}

.tab.active {
  background: var(--green);
  color: #fff;
}

.panel {
  background: var(--panel);
  border-top: 3px solid var(--green);
  display: none;
  min-height: 520px;
  padding: 18px;
}

.panel.active {
  display: block;
}

.messages {
  border: 1px solid var(--line);
  height: 390px;
  overflow: auto;
  padding: 14px;
}

.message {
  border-left: 4px solid var(--line);
  margin-bottom: 12px;
  padding: 8px 10px;
  white-space: pre-wrap;
}

.message.user {
  border-color: var(--blue);
}

.message.agent {
  border-color: var(--green);
}

.message.error {
  border-color: var(--danger);
  color: var(--danger);
}

.composer {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr 120px;
  margin-top: 14px;
}

.grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.form-block {
  border: 1px solid var(--line);
  display: grid;
  gap: 10px;
  padding: 14px;
}

.inline {
  align-items: center;
  display: flex;
  flex-direction: row;
  gap: 8px;
}

.inline input {
  min-height: auto;
  width: auto;
}

.output {
  background: #101820;
  color: #e9eef5;
  margin: 16px 0 0;
  min-height: 90px;
  overflow: auto;
  padding: 14px;
}

.toolbar {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 14px;
}

.tables {
  display: grid;
  gap: 18px;
}

table {
  border-collapse: collapse;
  width: 100%;
}

caption {
  color: var(--amber);
  font-weight: 800;
  padding: 4px 0 8px;
  text-align: left;
}

th,
td {
  border: 1px solid var(--line);
  font-size: 13px;
  padding: 8px;
  text-align: left;
  vertical-align: top;
}

th {
  background: #eef2f6;
}

@media (max-width: 860px) {
  .topbar,
  .composer {
    display: block;
  }

  .settings,
  .grid {
    grid-template-columns: 1fr;
  }

  .composer button {
    margin-top: 10px;
    width: 100%;
  }

  .tabs {
    overflow-x: auto;
  }
}