:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --text: #1c1c1a;
  --muted: #6b6b66;
  --accent: #1f7a4d;
  --accent-text: #ffffff;
  --border: #e3e3de;
  --user: #eef5f0;
  --danger: #b3261e;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #151514;
    --surface: #1f1f1d;
    --text: #ededea;
    --muted: #a3a39d;
    --accent: #3fae78;
    --accent-text: #0d1f15;
    --border: #33332f;
    --user: #1d2a22;
    --danger: #f2b8b5;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

main {
  max-width: 34rem;
  margin: 0 auto;
  padding: 2rem 1rem 3rem;
}

h1 {
  margin: 0;
  font-size: 1.75rem;
}

h2 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.tagline,
.status,
.activity {
  color: var(--muted);
  margin: 0.25rem 0;
}

header {
  margin-bottom: 1.5rem;
}

.stack {
  display: grid;
  gap: 0.5rem;
}

button,
.primary {
  font: inherit;
  border-radius: 0.75rem;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  padding: 0.75rem 1.25rem;
  cursor: pointer;
}

.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  display: block;
}

button:disabled {
  opacity: 0.6;
  cursor: default;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.call {
  text-align: center;
  margin-bottom: 1.5rem;
}

.talk {
  width: 100%;
  padding: 1.25rem;
  font-size: 1.15rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1rem;
  margin-bottom: 1rem;
}

.due {
  list-style: none;
  margin: 0;
  padding: 0;
}

.due li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.35rem 0;
  border-top: 1px solid var(--border);
}

.due li:first-child {
  border-top: 0;
}

.when {
  color: var(--muted);
  white-space: nowrap;
}

.checkout {
  margin-bottom: 1rem;
}

.transcript {
  max-height: 22rem;
  overflow-y: auto;
}

.line {
  margin: 0.4rem 0;
  padding: 0.5rem 0.75rem;
  border-radius: 0.6rem;
}

.line.user {
  background: var(--user);
  margin-left: 2rem;
}

.line.agent {
  margin-right: 2rem;
}

.notice {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
}

.link {
  border: 0;
  background: none;
  color: var(--muted);
  text-decoration: underline;
  padding: 0.5rem 0;
}

.muted,
.legal {
  color: var(--muted);
}

.legal a {
  color: inherit;
}

.cart,
.warnings {
  list-style: none;
  margin: 0;
  padding: 0;
}

.cart li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.35rem 0;
  border-top: 1px solid var(--border);
}

.cart li:first-child {
  border-top: 0;
}

.cart .qty {
  color: var(--muted);
  white-space: nowrap;
}

.warnings li {
  color: var(--danger);
  font-size: 0.9rem;
  padding: 0.25rem 0;
}

.total {
  font-weight: 600;
  text-align: right;
  margin: 0.5rem 0;
}

.settings {
  margin-top: 1.5rem;
}

.settings summary {
  cursor: pointer;
  color: var(--muted);
  padding: 0.5rem 0;
}

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