:root {
  color-scheme: light;
  --ink: #1c1915;
  --muted: #5e584f;
  --line: #ddd4c6;
  --paper: #f6f1e8;
  --card: #fffdf8;
  --accent: #8d3b2f;
  --accent-dark: #6d2c23;
  --ok: #1d6b45;
  --ok-bg: #e5f3eb;
  --warn: #8a5a00;
  --warn-bg: #fff4dc;
  --error: #8d3b2f;
  --error-bg: #fdecea;
  --sidebar: #241f1b;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font: 15px/1.55 "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}
a { color: var(--accent-dark); }
button, input, select, textarea {
  font: inherit;
  color: inherit;
}
.shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
aside {
  background: var(--sidebar);
  color: #f4efe6;
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.brand strong { display: block; font-size: 20px; letter-spacing: 0.04em; }
.brand span { color: #c8b8a4; font-size: 13px; }
nav { display: flex; flex-direction: column; gap: 4px; }
nav a {
  color: #f4efe6;
  text-decoration: none;
  padding: 8px 10px;
  border-radius: 6px;
}
nav a:hover { background: rgba(255, 255, 255, 0.06); }
.user { margin-top: auto; display: flex; flex-direction: column; gap: 4px; color: #d9cbb8; font-size: 13px; }
.user button {
  margin-top: 8px;
  background: transparent;
  color: #f4efe6;
  border: 1px solid #6d6256;
  border-radius: 6px;
  padding: 6px 10px;
  cursor: pointer;
}
main { padding: 32px 40px 64px; max-width: 1100px; }
h1 { font-size: 28px; font-weight: 650; margin: 0 0 8px; }
h2 { font-size: 18px; margin: 28px 0 10px; }
.lede, .muted { color: var(--muted); }
.doc-id { font-variant-numeric: tabular-nums; letter-spacing: 0.02em; }
.flash { padding: 10px 12px; border-radius: 8px; margin: 0 0 16px; }
.flash.ok { background: var(--ok-bg); color: var(--ok); }
.flash.error { background: var(--error-bg); color: var(--error); }
.card, form.card, section.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px;
  margin: 12px 0;
}
.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.stat strong { display: block; font-size: 26px; }
table { width: 100%; border-collapse: collapse; background: var(--card); }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 13px; color: var(--muted); font-weight: 600; }
label { display: block; margin: 10px 0; }
label span, .label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
input[type="text"], input[type="password"], input[type="email"], input[type="date"], input[type="number"], select, textarea {
  width: 100%;
  max-width: 36rem;
  padding: 8px 10px;
  border: 1px solid #cfc5b6;
  border-radius: 8px;
  background: white;
}
textarea { min-height: 7rem; }
.row { display: flex; flex-wrap: wrap; gap: 12px; align-items: end; }
.row label { flex: 1 1 14rem; }
button.primary, a.button {
  background: var(--accent);
  color: white;
  border: 0;
  border-radius: 8px;
  padding: 8px 14px;
  text-decoration: none;
  cursor: pointer;
  display: inline-block;
}
button.secondary {
  background: transparent;
  border: 1px solid #cfc5b6;
  border-radius: 8px;
  padding: 8px 14px;
  cursor: pointer;
}
.callout { background: var(--warn-bg); color: var(--warn); padding: 10px 12px; border-radius: 8px; }
.callout.quiet { background: #f3eee6; color: var(--muted); }
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card { width: min(420px, 100%); }
.packet { background: #f7f4ee; border-radius: 8px; padding: 10px 12px; }
.packet dt { color: var(--muted); font-size: 13px; }
.packet dd { margin: 0 0 8px; }
footer.note { margin-top: 28px; color: var(--muted); font-size: 13px; }
@media (max-width: 800px) {
  .shell { grid-template-columns: 1fr; }
  aside { gap: 12px; }
  nav { flex-direction: row; flex-wrap: wrap; }
  main { padding: 20px 16px 48px; }
  .grid { grid-template-columns: 1fr 1fr; }
}