:root { --fg:#1a1a1a; --muted:#6b6b6b; --line:#e2e2e2; --accent:#1f6feb; }
* { box-sizing: border-box; }
body {
  margin:0 auto; padding:20px 18px 40px; color:var(--fg); max-width:560px;
  font:16px/1.6 -apple-system,BlinkMacSystemFont,"PingFang SC","Helvetica Neue",sans-serif;
  background:#fff;
}
h1 { font-size:20px; margin:0 0 4px; }
h2 { font-size:18px; margin:0 0 4px; }
.hint { color:var(--muted); font-size:14px; margin:0 0 14px; }
textarea, input {
  width:100%; padding:12px; font:inherit; border:1px solid var(--line);
  border-radius:10px; margin-bottom:14px; -webkit-appearance:none;
}
button.primary {
  width:100%; padding:14px; font:inherit; font-weight:600; color:#fff;
  background:var(--accent); border:0; border-radius:10px;
}
button.primary:disabled { opacity:.5; }
#pains { list-style:none; padding:0; margin:0 0 14px; }
#pains li {
  border:1px solid var(--line); border-radius:10px; padding:12px;
  margin-bottom:10px; display:flex; gap:10px; align-items:flex-start;
}
#pains li.off { opacity:.4; text-decoration:line-through; }
#pains .why { color:var(--muted); font-size:13px; display:block; }
#pains button { background:none; border:0; font-size:20px; line-height:1; color:var(--muted); }
.match { border-left:3px solid var(--accent); padding:4px 0 4px 12px; margin-bottom:16px; }
.match .sec { color:var(--accent); font-weight:600; }
.match .none { color:var(--muted); font-size:13px; }
.err { color:#c0392b; font-size:14px; }