:root {
  color-scheme: light dark;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  --page: #f5f6fa;
  --surface: #ffffff;
  --text: #202536;
  --muted: #667085;
  --line: #e1e5ee;
  --accent: #4b55c5;
  --accent-hover: #3c45ad;
  --assistant: #f0f1ff;
  --danger: #b42318;
  --danger-bg: #fff0ee;
  --shadow: 0 16px 44px rgb(28 36 70 / 7%);
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #12141c;
    --surface: #1d202b;
    --text: #f1f2f8;
    --muted: #a2a8ba;
    --line: #343847;
    --accent: #a6abff;
    --accent-hover: #c0c3ff;
    --assistant: #282b42;
    --danger: #ffb4aa;
    --danger-bg: #402725;
    --shadow: 0 16px 44px rgb(0 0 0 / 18%);
  }
}

* { box-sizing: border-box; }

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(ellipse at 10% 0%, rgb(91 100 220 / 10%), transparent 38rem),
    var(--page);
  color: var(--text);
}

button, input { font: inherit; }

.app-shell {
  width: min(100% - 32px, 920px);
  margin: 0 auto;
  padding: clamp(28px, 6vw, 64px) 0 28px;
}

.page-header { max-width: 720px; margin-bottom: 28px; }

.eyebrow, .section-label {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.74rem;
  font-weight: 750;
  letter-spacing: 0.14em;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 6vw, 3.3rem);
  letter-spacing: -0.045em;
  line-height: 1.1;
}

.intro {
  max-width: 650px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.8;
}

.session-panel, .transcript-card {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.session-panel { padding: clamp(20px, 4vw, 30px); }

.status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.status-row h2, .transcript-heading h2 {
  margin: 0;
  font-size: 1.12rem;
  font-weight: 700;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  flex-shrink: 0;
  margin: 0;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 650;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #98a2b3;
}

.status-pill[data-state="connecting"] .status-dot { background: #f79009; }
.status-pill[data-state="connected"] .status-dot { background: #12b76a; }
.status-pill[data-state="error"] .status-dot { background: #f04438; }

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.button {
  min-height: 46px;
  padding: 11px 18px;
  border: 1px solid transparent;
  border-radius: 13px;
  cursor: pointer;
  font-weight: 700;
  transition: background-color 140ms ease, border-color 140ms ease, transform 140ms ease;
}

.button:not(:disabled):active { transform: translateY(1px); }
.button:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.button:disabled { cursor: not-allowed; opacity: 0.45; }

.button-primary { background: var(--accent); color: #fff; }
.button-primary:not(:disabled):hover { background: var(--accent-hover); }
@media (prefers-color-scheme: dark) {
  .button-primary { color: #171827; }
}
.button-secondary { border-color: var(--line); background: transparent; color: var(--text); }
.button-secondary:not(:disabled):hover, .button-quiet:not(:disabled):hover { background: var(--page); }
.button-quiet { background: transparent; color: var(--muted); }

.help-text, .page-footer { color: var(--muted); font-size: 0.88rem; line-height: 1.7; }
.help-text { margin: 14px 0 0; }

.error-message {
  margin: 20px 0 0;
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--danger-bg);
  color: var(--danger);
  line-height: 1.6;
}
.error-message[hidden] { display: none; }

.transcript-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.transcript-card { min-height: 180px; padding: 22px; box-shadow: none; }
.transcript-card-assistant { background: var(--assistant); }

.transcript-heading { display: flex; align-items: center; gap: 10px; }
.transcript-icon {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 10px;
  background: var(--page);
  color: var(--accent);
  font-size: 1.1rem;
  font-weight: 800;
}
.transcript-body {
  margin: 18px 0 0;
  color: var(--muted);
  line-height: 1.8;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}
.page-footer { margin-top: 22px; }

@media (max-width: 620px) {
  .app-shell { width: min(100% - 24px, 920px); }
  .status-row { align-items: flex-start; flex-direction: column; }
  .transcript-grid { grid-template-columns: 1fr; }
  .transcript-card { min-height: 140px; }
  .button { flex: 1 1 auto; }
}