:root {
  --ink: #123c4b;
  --ink-soft: #3f6370;
  --bg: #eef4f6;
  --card: #ffffff;
  --line: #d7e3e7;
  --teal: #0f766e;
  --teal-dark: #115e59;
  --amber: #f59e0b;
  --amber-soft: #fef3c7;
  --blue: #1d6fb8;
  --blue-soft: #e7f0fa;
  --red: #b91c1c;
  --ok: #15803d;
  --ok-soft: #dcfce7;
  --radius: 14px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------- header ---------- */
header {
  display: flex; justify-content: space-between; align-items: center;
  gap: 12px; padding: 14px 20px;
  background: var(--ink); color: #fff;
}
.brand { display: flex; align-items: baseline; gap: 10px; }
.logo { font-size: 22px; font-weight: 800; letter-spacing: .3px; }
.tagline { color: #bfe3dc; font-size: 13px; }
.header-right { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.chip {
  border-radius: 999px; padding: 4px 12px; font-size: 12.5px;
  background: rgba(255,255,255,.16); color: #fff; white-space: nowrap;
}
.chip-soft { background: rgba(255,255,255,.08); }
.chip.mode-live { background: #16a34a; }
.chip.mode-demo { background: var(--amber); color: #3b2a04; }

/* ---------- acts timeline ---------- */
#acts ol {
  list-style: none; display: flex; gap: 4px; margin: 0; padding: 10px 16px;
  background: #fff; border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}
#acts li {
  flex: 1 1 auto; display: flex; gap: 8px; align-items: center;
  color: var(--ink-soft); font-size: 13.5px; padding: 6px 10px;
  border-radius: 10px; border: 1px solid transparent; white-space: nowrap;
}
#acts li .num {
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--line); color: var(--ink-soft);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 11.5px; font-weight: 700;
}
body[data-act="1"] #act-1, body[data-act="2"] #act-2,
body[data-act="3"] #act-3, body[data-act="4"] #act-4 {
  background: var(--blue-soft); color: var(--blue);
}
body[data-act="1"] #act-1 .num, body[data-act="2"] #act-2 .num,
body[data-act="3"] #act-3 .num, body[data-act="4"] #act-4 .num {
  background: var(--blue); color: #fff;
}
#acts li.done { color: var(--ok); }
#acts li.done .num { background: var(--ok); color: #fff; }

/* ---------- layout ---------- */
main {
  flex: 1; display: grid;
  grid-template-columns: minmax(340px, 5fr) minmax(380px, 6fr);
  gap: 18px; padding: 18px 20px; max-width: 1200px; width: 100%;
  margin: 0 auto; align-items: start;
}
@media (max-width: 860px) { main { grid-template-columns: 1fr; } }

.col h2 { margin: 2px 0 10px; font-size: 13px; text-transform: uppercase; letter-spacing: .6px; }
.k { color: var(--ink-soft); }

.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 16px; margin-bottom: 14px;
  box-shadow: 0 1px 2px rgba(15, 60, 75, .05);
}
.card h3 { margin: 0 0 8px; font-size: 16px; }
.hint { color: var(--ink-soft); font-size: 13.5px; margin: 0 0 8px; }
.err { color: var(--red); font-size: 13px; min-height: 18px; margin: 6px 0 0; }
.transcript {
  background: #f6fafb; border: 1px dashed var(--line); border-radius: 10px;
  padding: 10px 12px; margin: 8px 0; min-height: 20px; font-size: 15px;
}
.transcript[data-empty]:empty::before { content: attr(data-empty); color: #9db4bc; }

/* plan buckets */
#plan-buckets { display: flex; flex-direction: column; gap: 10px; }
.bucket h4 {
  margin: 0 0 4px; font-size: 13px; text-transform: uppercase;
  letter-spacing: .4px; color: var(--ink-soft);
}
.bucket ul { margin: 0; padding-left: 18px; }
.bucket ul li { font-size: 14.5px; margin: 2px 0; }
.bucket.b-dont h4 { color: var(--red); }
.bucket.b-call_clinic h4 { color: var(--blue); }
.bucket.b-follow_up h4 { color: var(--teal); }

/* buttons */
.btnrow { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.btn {
  border: 1px solid var(--line); border-radius: 10px; padding: 9px 14px;
  font-size: 14.5px; cursor: pointer; background: #fff; color: var(--ink);
  transition: transform .05s ease, box-shadow .15s ease;
}
.btn:hover { box-shadow: 0 2px 6px rgba(15,60,75,.18); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.primary { background: var(--blue); border-color: var(--blue); color: #fff; }
.btn.success { background: var(--ok); border-color: var(--ok); color: #fff; }
.btn.accent { background: var(--teal); border-color: var(--teal); color: #fff; }
.btn.ghost { background: #fff; }
.btn.recording { background: var(--red); border-color: var(--red); color: #fff; animation: pulse 1.2s infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 6px rgba(185,28,28,.18); } }

/* chat */
.chat-card { padding-bottom: 12px; }
#chat { display: flex; flex-direction: column; gap: 10px; max-height: 420px; overflow-y: auto; }
#chat .placeholder { color: #9db4bc; text-align: center; margin: 24px 0; }
.bubble { max-width: 86%; padding: 9px 13px; border-radius: 14px; font-size: 15px; }
.bubble .who { display: block; font-size: 11px; font-weight: 700; letter-spacing: .4px; margin-bottom: 2px; opacity: .75; }
.bubble.sys  { align-self: flex-start; background: var(--teal); color: #fff; border-bottom-left-radius: 4px; }
.bubble.sys .who { color: #b6e4dd; }
.bubble.nurse{ align-self: flex-end; background: var(--blue-soft); color: var(--blue); border-bottom-right-radius: 4px; }
.bubble.nurse .who { color: var(--blue); }
.bubble.patient { align-self: flex-start; background: var(--amber-soft); color: #7c5510; border-bottom-left-radius: 4px; }
.bubble.patient .who { color: #a16d10; }
.bubble.ok { background: var(--ok-soft); color: var(--ok); align-self: flex-start; }
.bubble.ok .who { color: var(--ok); }
.bubble.speaking { outline: 2px solid var(--amber); }
.listening { display: flex; gap: 8px; align-items: center; color: var(--red); font-weight: 600; margin: 8px 0 0; font-size: 14px; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--red); animation: blink 1s infinite; }
@keyframes blink { 50% { opacity: .25; } }

.qa-prompt { font-size: 16px; font-weight: 600; margin: 0 0 10px; }
.qa-prompt::before { content: "💬 "; }

.confirm-card { border-color: var(--ok); background: var(--ok-soft); }
.confirm-card h3 { color: var(--ok); }
.confirm-card p { margin: 4px 0; }

/* footer */
footer {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 12px 20px; background: #fff; border-top: 1px solid var(--line);
  flex-wrap: wrap;
}
.status { color: var(--ink-soft); font-size: 13px; margin: 0; }

/* ---------- try-it-yourself bar + guide ---------- */
.trybar {
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  max-width: 1200px; width: calc(100% - 40px); margin: 14px auto 0;
  background: var(--ink); color: #fff; border: none;
}
.trybar-copy { display: flex; flex-direction: column; gap: 3px; }
.trybar-copy strong { font-size: 19px; }
.muted-text { color: #bfd6dd; font-size: 14.5px; }
.trybar .btn { background: #fff; color: var(--ink); }
.trybar .btn.accent { background: var(--amber); color: #3b2a04; border-color: var(--amber); }

.guide {
  display: flex; gap: 14px; align-items: flex-start;
  max-width: 1200px; width: calc(100% - 40px); margin: 12px auto 0;
  background: #fffdf4; border: 1px solid #ecd9a8; box-shadow: none;
}
.guide-icon { font-size: 26px; line-height: 1.1; }
.guide-body { flex: 1; }
.guide-body strong { font-size: 17px; color: var(--ink); }
.guide-text { margin: 4px 0 0; font-size: 15.5px; color: var(--ink-soft); }
.guide-text em { color: var(--amber); font-style: normal; }

.sample-box {
  background: #f6fafb; border: 1px dashed var(--line); border-radius: 10px;
  padding: 10px 12px; margin: 8px 0;
}
.sample-label {
  display: block; font-size: 11.5px; font-weight: 700; letter-spacing: 1px;
  text-transform: uppercase; color: var(--teal); margin-bottom: 4px;
}
.sample { margin: 0; font-size: 15.5px; line-height: 1.55; color: var(--ink); }

/* respect the hidden attribute on flex cards */
.trybar[hidden], .guide[hidden] { display: none; }