:root {
  --bg: #f4f1ea;
  --ink: #1c1916;
  --accent: #6b3a2a;
  --card: #fffdf8;
  --line: #d9d0c4;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
}
.panel, header, aside, main, section {
  background: var(--card);
}
.panel {
  max-width: 420px;
  margin: 12vh auto;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: 12px;
}
.warn { color: var(--accent); font-size: 0.92rem; }
.hint { color: #666; font-size: 0.85rem; }
label { display: block; margin: 0.6rem 0; font-size: 0.92rem; }
input, textarea, select, button {
  font: inherit;
  width: 100%;
  padding: 0.45rem 0.55rem;
  margin-top: 0.25rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}
button {
  background: var(--accent);
  color: #fff;
  border: 0;
  cursor: pointer;
  width: auto;
  padding: 0.45rem 0.9rem;
}
header {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
}
header button { margin-left: auto; }
#btn-logout { margin-left: 0; }
.layout { display: grid; grid-template-columns: 240px 1fr; min-height: calc(100vh - 52px); }
aside { border-right: 1px solid var(--line); padding: 1rem; }
aside ul { list-style: none; padding: 0; }
aside li { padding: 0.4rem; cursor: pointer; border-radius: 6px; }
aside li.active, aside li:hover { background: #efe6d8; }
main { padding: 1rem 1.2rem 3rem; }
.row { display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: end; }
.row label { flex: 1; min-width: 140px; }
.file { position: relative; overflow: hidden; }
.file input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.files { font-size: 0.85rem; color: #444; margin-top: 0.4rem; }
#report {
  white-space: pre-wrap;
  background: #faf7f2;
  padding: 1rem;
  border: 1px solid var(--line);
  max-height: 70vh;
  overflow: auto;
  font-size: 0.88rem;
}
#after-a button { margin: 0.25rem 0.25rem 0 0; }
#status-pill { font-size: 0.8rem; color: #555; }
dialog { border: 1px solid var(--line); border-radius: 12px; padding: 1rem; width: min(92vw, 420px); }
@media (max-width: 800px) {
  .layout { grid-template-columns: 1fr; }
  aside { border-right: 0; border-bottom: 1px solid var(--line); }
}