/* DSE Phase 3 — Listen & Retell / Read & Respond shared styles */
:root {
  --bg: #0a1526;
  --panel: #101f38;
  --panel2: #16294a;
  --line: #24406e;
  --text: #e8eef7;
  --dim: #9db1cc;
  --accent: #4ea1ff;
  --good: #38c172;
  --bad: #e3616c;
  --warn: #f2c14e;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg); color: var(--text);
  font-family: system-ui, -apple-system, "PingFang HK", "Microsoft JhengHei", sans-serif;
  min-height: 100dvh;
}
#app { max-width: 720px; margin: 0 auto; padding: 16px 16px 90px; }
a { color: var(--accent); }
h1 { font-size: 20px; margin: 8px 0 2px; }
h2 { font-size: 16px; margin: 14px 0 8px; }
.sub { color: var(--dim); font-size: 13px; margin: 0 0 14px; }
.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 14px; padding: 14px 16px; margin: 10px 0;
}
.card.clickable { cursor: pointer; transition: border-color .15s, transform .1s; }
.card.clickable:hover { border-color: var(--accent); transform: translateY(-1px); }
.tag { display: inline-block; font-size: 11px; padding: 2px 8px; border-radius: 999px;
  background: var(--panel2); border: 1px solid var(--line); color: var(--dim); margin-right: 6px; }
.tag.voa { color: #8fd3a8; border-color: #2c6e49; }
.tag.ted { color: #ff8a8a; border-color: #a33; }
button {
  font: inherit; border: 0; border-radius: 10px; padding: 10px 18px;
  background: var(--accent); color: #04182e; font-weight: 600; cursor: pointer;
}
button:disabled { opacity: .45; cursor: not-allowed; }
button.ghost { background: var(--panel2); color: var(--text); border: 1px solid var(--line); }
button.mic { width: 100%; padding: 14px; font-size: 16px; border-radius: 12px; }
button.mic.listening { background: var(--bad); color: #fff; animation: pulse 1.2s infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(227,97,108,.5);} 50% { box-shadow: 0 0 0 12px rgba(227,97,108,0);} }
.steps { display: flex; gap: 6px; margin: 12px 0 4px; }
.steps span { flex: 1; height: 5px; border-radius: 3px; background: var(--panel2); }
.steps span.on { background: var(--accent); }
.opt {
  display: block; width: 100%; text-align: left; margin: 6px 0; padding: 10px 12px;
  background: var(--panel2); color: var(--text); border: 1px solid var(--line); border-radius: 10px;
}
.opt.correct { border-color: var(--good); background: rgba(56,193,114,.12); }
.opt.wrong { border-color: var(--bad); background: rgba(227,97,108,.12); }
audio { width: 100%; margin-top: 8px; }
.ted-frame { width: 100%; aspect-ratio: 16/9; border: 0; border-radius: 12px; background: #000; }
.reading-text { line-height: 1.7; font-size: 16px; white-space: pre-wrap; }
.timer { font-variant-numeric: tabular-nums; font-size: 26px; font-weight: 700; color: var(--warn); }
.avatar-row { display: flex; gap: 12px; align-items: flex-start; margin: 12px 0; }
.avatar {
  width: 58px; height: 58px; border-radius: 50%; flex: 0 0 auto;
  background: linear-gradient(135deg, #2b6cb0, #4ea1ff); display: flex; align-items: center;
  justify-content: center; font-size: 30px; border: 2px solid var(--line);
}
.avatar.speaking { animation: talk .6s infinite alternate; }
@keyframes talk { from { transform: scale(1);} to { transform: scale(1.07); box-shadow: 0 0 18px rgba(78,161,255,.5);} }
.bubble { background: var(--panel2); border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px; flex: 1; }
.bubble.me { background: rgba(56,193,114,.1); border-color: #2c6e49; }
.transcript-live { color: var(--dim); font-style: italic; min-height: 1.2em; }
.report .dim-row { display: flex; gap: 8px; margin: 8px 0; align-items: baseline; }
.report .dim-name { flex: 0 0 150px; color: var(--dim); font-size: 12px; }
.band { font-size: 34px; font-weight: 800; color: var(--warn); }
.pill-list li { margin: 4px 0; }
.footer-note { color: var(--dim); font-size: 11px; margin-top: 22px; line-height: 1.5; }
.err { color: var(--bad); font-size: 13px; }
.spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid var(--line);
  border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; vertical-align: -3px; }
@keyframes spin { to { transform: rotate(360deg); } }