/* Accessibility-first: huge targets, 20px+ text, WCAG AA contrast, reduced motion safe */
:root {
  --bg: #fafafa; --fg: #1a1a1a; --accent: #0b6e4f; --accent-dark: #08543c;
  --card: #ffffff; --border: #d0d0d0; --danger: #b00020;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg); color: var(--fg); font-size: 20px; line-height: 1.5;
  max-width: 560px; margin-inline: auto; padding-bottom: 2rem;
}
header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1rem 1.25rem;
}
h1 { font-size: 1.6rem; margin: 0; }
.toggle {
  font-size: 1rem; padding: .6rem 1rem; border-radius: 10px;
  border: 2px solid var(--border); background: var(--card); cursor: pointer;
}
.toggle:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid var(--accent); outline-offset: 2px;
}

/* chat */
.chat-log { padding: 0 1.25rem; min-height: 120px; }
.bubble {
  padding: .9rem 1.1rem; border-radius: 16px; margin: .5rem 0; max-width: 85%;
}
.bubble.user { background: var(--accent); color: #fff; margin-left: auto; }
.bubble.agent { background: var(--card); border: 2px solid var(--border); }

/* options as big tappable cards */
.options { padding: 0 1.25rem; display: grid; gap: .75rem; }
.option-card {
  width: 100%; text-align: left; font-size: 1.15rem; padding: 1.1rem 1.2rem;
  border-radius: 14px; border: 3px solid var(--accent); background: var(--card);
  cursor: pointer; font-weight: 600;
}
.option-card:hover { background: #e8f5f0; }

/* the big call button */
.call-area { display: flex; justify-content: center; padding: 1.5rem 0; }
.call-btn {
  width: 190px; height: 190px; border-radius: 50%; border: none; cursor: pointer;
  background: var(--accent); color: #fff; font-size: 1.2rem; font-weight: 700;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: .4rem; box-shadow: 0 6px 24px rgba(11,110,79,.4);
}
.call-btn:hover { background: var(--accent-dark); }
.call-btn.listening { animation: pulse 1.2s infinite; background: var(--danger); }
@keyframes pulse { 50% { transform: scale(1.06); } }
@media (prefers-reduced-motion: reduce) { .call-btn.listening { animation: none; } }

.text-row { display: flex; gap: .6rem; padding: 0 1.25rem; }
.text-row input {
  flex: 1; font-size: 1.1rem; padding: .9rem 1rem; border-radius: 12px;
  border: 2px solid var(--border);
}
.text-row button {
  font-size: 1.1rem; padding: .9rem 1.3rem; border-radius: 12px; border: none;
  background: var(--accent); color: #fff; cursor: pointer; font-weight: 700;
}

/* caregiver */
.card {
  background: var(--card); border: 2px solid var(--border); border-radius: 14px;
  margin: 1rem 1.25rem; padding: 1rem 1.25rem;
}
.card h2 { font-size: 1.15rem; margin: 0 0 .5rem; }
.muted { color: #555; font-size: .95rem; }
.audit { list-style: none; padding: 0; margin: 0; font-size: .95rem; }
.audit li { padding: .5rem 0; border-bottom: 1px solid var(--border); }
.audit .ev { font-weight: 700; }
.emergency {
  background: var(--danger); color: #fff; font-weight: 700;
  margin: 1rem 1.25rem; padding: 1rem 1.25rem; border-radius: 14px;
}
.approve-row { display: flex; align-items: center; gap: .75rem; padding: .4rem 0; }
.approve-row button {
  font-size: 1rem; padding: .5rem 1rem; border-radius: 10px; border: none;
  background: var(--accent); color: #fff; cursor: pointer;
}
.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}