:root {
  --bg: #f4f7f9;
  --card: #ffffff;
  --ink: #1c2b33;
  --muted: #5b6b74;
  --accent: #0f6e63;
  --accent-dark: #0b544c;
  --danger: #b3261e;
  --border: #dde5e9;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
}

header {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  padding: 2rem 1.5rem;
  text-align: center;
}

header h1 { margin: 0 0 0.4rem; font-size: 1.6rem; }
header p { margin: 0 auto; max-width: 46rem; opacity: 0.92; }

main {
  max-width: 52rem;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  box-shadow: 0 1px 3px rgba(16, 42, 54, 0.06);
}

.card h2 {
  margin: 0 0 0.75rem;
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 0.95rem;
  flex-shrink: 0;
}

.controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

button {
  font: inherit;
  border: none;
  border-radius: 8px;
  padding: 0.6rem 1.1rem;
  cursor: pointer;
  transition: background 0.15s, transform 0.05s;
}

button:active { transform: scale(0.98); }
button:disabled { opacity: 0.55; cursor: wait; }

button.primary { background: var(--accent); color: #fff; }
button.primary:hover:not(:disabled) { background: var(--accent-dark); }
button.primary.recording { background: var(--danger); }

button.secondary {
  background: #eef3f5;
  color: var(--ink);
  border: 1px solid var(--border);
}
button.secondary:hover { background: #e2eaee; }

.status { color: var(--muted); font-size: 0.92rem; }
.timer { font-variant-numeric: tabular-nums; color: var(--accent-dark); font-weight: 600; }

.hint { color: var(--muted); font-size: 0.92rem; margin-top: 0; }

.warn {
  background: #fff6e5;
  border: 1px solid #f0d9a8;
  border-radius: 8px;
  padding: 0.6rem 0.9rem;
  font-size: 0.92rem;
}

#audio-playback {
  margin-top: 0.9rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
#audio-playback audio { max-width: 100%; }
#audio-playback a { color: var(--accent-dark); font-size: 0.92rem; }

.interim {
  min-height: 1.2em;
  color: var(--muted);
  font-style: italic;
  font-size: 0.95rem;
  margin-bottom: 0.4rem;
}

textarea,
input[type="password"] {
  font: inherit;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem;
  background: #fcfdfe;
}
textarea { width: 100%; resize: vertical; }
input[type="password"] { flex: 1; min-width: 12rem; }
textarea:focus,
input[type="password"]:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

.login { border-left: 4px solid var(--accent); }

.progress {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 0.9rem;
  padding: 0.65rem 0.9rem;
  background: #eef6f4;
  border: 1px solid #cde3de;
  border-radius: 8px;
  font-size: 0.95rem;
  color: var(--accent-dark);
}

.spinner {
  width: 1.05rem;
  height: 1.05rem;
  border: 2.5px solid #bcd9d3;
  border-top-color: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
  animation: spin 0.9s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  .spinner { animation-duration: 3s; }
}

.progress .timer { margin-left: auto; }

.error {
  background: #fdeceb;
  border: 1px solid #f3c1bd;
  color: var(--danger);
  border-radius: 8px;
  padding: 0.6rem 0.9rem;
  margin-top: 0.9rem;
  font-size: 0.95rem;
}

.result {
  margin-top: 1rem;
  background: #fbfdfc;
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  padding: 1rem 1.2rem;
  white-space: normal;
  word-wrap: break-word;
}

#result-wrap button { margin-top: 0.75rem; }

.followup {
  margin-top: 1rem;
  border-top: 1px dashed var(--border);
  padding-top: 1rem;
}
.followup textarea { margin-bottom: 0.6rem; }

footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  padding: 0 1.5rem 2rem;
  max-width: 46rem;
  margin: 0 auto;
}

.hidden { display: none !important; }

@media (max-width: 600px) {
  header { padding: 1.4rem 1rem; }
  header h1 { font-size: 1.25rem; }
  main { padding: 1rem 0.7rem 2rem; gap: 0.9rem; }
  .card { padding: 1rem; }
  button { padding: 0.7rem 1rem; }
  .controls { gap: 0.5rem; }
}