:root {
  --bg: #f6f6f4;
  --fg: #111;
  --muted: #555;
  --line: #ccc;
  --card: #fff;
  --accent: #111;
  --bad: #111;
  --ok: #111;
}
html[data-theme="dark"] {
  --bg: #0e0e0e;
  --fg: #eee;
  --muted: #aaa;
  --line: #333;
  --card: #161616;
  --accent: #eee;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { color: var(--fg); }
.muted { color: var(--muted); }
.eyebrow { letter-spacing: 0.12em; text-transform: uppercase; font-size: 11px; color: var(--muted); }
h1 { font-size: 1.6rem; margin: 0 0 0.4rem; font-weight: 600; }
h2 { font-size: 1rem; margin: 0 0 0.6rem; font-weight: 600; }
.sidebar {
  position: fixed; inset: 0 auto 0 0; width: 220px; background: #111; color: #eee;
  display: flex; flex-direction: column; padding: 1.2rem 1rem; z-index: 20;
}
.sidebar a, .sidebar .brand, .sidebar .muted, .sidebar .eyebrow { color: #eee; }
.sidebar nav { display: flex; flex-direction: column; gap: 0.4rem; margin-top: 1.5rem; }
.sidebar nav a { text-decoration: none; padding: 0.55rem 0.4rem; border: 1px solid #2a2a2a; }
.sidebar-foot { margin-top: auto; display: flex; flex-direction: column; gap: 0.4rem; }
.sidebar .btn { color: #eee; background: #2a2a2a; border-color: #444; }
.mobile-topbar {
  display: none; position: sticky; top: 0; z-index: 30; background: #111; color: #eee;
  padding: 0.6rem 0.8rem; padding-top: calc(0.6rem + env(safe-area-inset-top));
  align-items: center; justify-content: space-between;
}
.mobile-topbar .btn { color: #eee; background: #2a2a2a; border-color: #444; }
.mobile-topbar .brand { font-weight: 600; }
.backdrop { display: none; }
.main { margin-left: 220px; padding: 1.5rem; max-width: 1100px; }
.btn {
  display: inline-block; border: 1px solid var(--line); background: var(--card); color: var(--fg);
  padding: 0.55rem 0.9rem; min-height: 44px; text-decoration: none; cursor: pointer; font: inherit;
}
.btn.primary { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.toolbar { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1rem 0; }
.toolbar input { min-height: 44px; padding: 0.4rem 0.6rem; border: 1px solid var(--line); background: var(--card); color: var(--fg); font: inherit; min-width: 12rem; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); background: var(--card); }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.65rem 0.75rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.pill { font-size: 12px; border: 1px solid var(--line); padding: 0.15rem 0.4rem; }
.pill.overdue { font-weight: 700; }
.flash { border: 1px solid var(--line); padding: 0.7rem 0.9rem; background: var(--card); }
.flash.bad { font-weight: 600; }
.form { max-width: 720px; display: flex; flex-direction: column; gap: 0.8rem; }
.form label { display: flex; flex-direction: column; gap: 0.3rem; }
.form input, .form select, .form textarea {
  width: 100%; border: 1px solid var(--line); background: var(--card); color: var(--fg);
  font: inherit; padding: 0.55rem 0.65rem; font-size: 16px;
}
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.card { border: 1px solid var(--line); background: var(--card); padding: 1rem; margin: 1rem 0; }
dl { display: grid; grid-template-columns: 11rem 1fr; gap: 0.35rem 0.8rem; margin: 0; }
dt { color: var(--muted); }
dd { margin: 0; }
pre.draft { white-space: pre-wrap; font: inherit; margin: 0; }
.audit { list-style: none; padding: 0; margin: 0; }
.audit li { padding: 0.35rem 0; border-bottom: 1px solid var(--line); }
.linkrow { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0.8rem 0 1rem; }
.chat-log { max-height: 22rem; overflow-y: auto; border: 1px solid var(--line); padding: 0.6rem; background: var(--bg); margin: 0.6rem 0; }
.chat-log-tall { max-height: 28rem; min-height: 16rem; }
.chat-msg { padding: 0.45rem 0.5rem; margin: 0.3rem 0; white-space: pre-wrap; }
.chat-msg.user { border-left: 3px solid var(--fg); }
.chat-msg.assistant { background: var(--card); }
.chat-form { display: flex; gap: 0.5rem; }
.chat-form input { flex: 1; min-height: 44px; font-size: 16px; border: 1px solid var(--line); background: var(--card); color: var(--fg); padding: 0.5rem 0.65rem; }
.login-body { min-height: 100vh; display: grid; place-items: center; }
.login-card { width: min(28rem, 92vw); border: 1px solid var(--line); background: var(--card); padding: 1.5rem; display: flex; flex-direction: column; gap: 0.8rem; }
.login-card input { width: 100%; min-height: 44px; font-size: 16px; border: 1px solid var(--line); background: var(--bg); color: var(--fg); padding: 0.5rem; }
@media (max-width: 900px) {
  .sidebar { transform: translateX(-110%); }
  html.nav-open .sidebar { transform: none; }
  html.nav-open .backdrop { display: block; position: fixed; inset: 0; background: rgba(0,0,0,0.4); z-index: 15; }
  .mobile-topbar { display: flex; }
  .main { margin-left: 0; padding: 1rem; }
  .grid { grid-template-columns: 1fr; }
  dl { grid-template-columns: 1fr; }
  .toolbar .btn, .toolbar input { width: 100%; }
}