:root {
  --ink: #22303C; --muted: #6b7a87; --line: #e0d6c6; --bg: #faf8f4;
  --card: #ffffff; --teal: #0F6E63; --amber: #B4622D; --review: #f3e3c8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8eaed; --muted: #9aa5ad; --line: #3a4a58; --bg: #171d23;
    --card: #212a33; --review: #4a3c22;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
nav {
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem 1rem;
  padding: 0.6rem 1rem; background: var(--card); border-bottom: 1px solid var(--line);
}
nav .brand { font-weight: 700; font-size: 1.1rem; color: var(--teal); text-decoration: none; }
nav .links { display: flex; flex-wrap: wrap; gap: 0.1rem; flex: 1 1 100%; order: 3; }
@media (min-width: 760px) { nav .links { flex: 1 1 0; order: 0; } }
nav .links a {
  color: var(--ink); text-decoration: none; padding: 0.25rem 0.55rem; border-radius: 6px;
}
nav .links a.on, nav .links a:hover { background: var(--bg); color: var(--teal); }
nav .user { font-size: 0.8rem; color: var(--muted); }
nav .user a { color: var(--muted); }
main { max-width: 1080px; margin: 0 auto; padding: 1rem; }
h1 { font-size: 1.4rem; margin: 0.5rem 0; }
h1.headline { font-size: 1.7rem; color: var(--teal); }
h2 { font-size: 1.05rem; margin: 1.2rem 0 0.4rem; }
.muted { color: var(--muted); font-size: 0.85rem; }
.toast {
  background: var(--teal); color: #fff; padding: 0.6rem 1rem; border-radius: 8px;
  margin: 0.5rem 0; animation: fade 4s forwards;
}
@keyframes fade { 0%, 80% { opacity: 1; } 100% { opacity: 0.25; } }
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 0.7rem; margin: 1rem 0; }
.tile {
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 0.7rem 0.9rem; display: flex; flex-direction: column; gap: 0.15rem;
}
.tile .label { font-size: 0.75rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.tile .num { font-size: 1.25rem; font-weight: 700; }
.callout { background: var(--review); border-radius: 10px; padding: 0.6rem 1rem; margin: 0.8rem 0; }
.callout h2 { margin: 0.2rem 0; }
.callout ul { margin: 0.4rem 0; padding-left: 1.2rem; }
.charts { display: grid; gap: 1rem; margin-top: 1rem; }
.chart-box { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 0.8rem; }
.chart-box h2 { margin: 0 0 0.5rem; font-size: 0.9rem; color: var(--muted); }
.table-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: 10px; }
table { border-collapse: collapse; width: 100%; font-size: 0.85rem; }
th, td { text-align: left; padding: 0.45rem 0.6rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { position: sticky; top: 0; background: var(--card); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); }
tr.review td { background: var(--review); }
tr.q-row td, tr.qt-form td { background: var(--bg); font-size: 0.82rem; }
.badge { display: inline-block; font-size: 0.68rem; padding: 0.1rem 0.4rem; border-radius: 6px; margin-right: 0.3rem; white-space: nowrap; }
.review-badge { background: var(--amber); color: #fff; }
.q-badge { background: var(--teal); color: #fff; }
.actions { white-space: nowrap; }
.actions .edit { font-size: 0.8rem; }
#filter {
  width: 100%; max-width: 380px; padding: 0.5rem 0.7rem; margin: 0.4rem 0;
  border: 1px solid var(--line); border-radius: 8px; background: var(--card); color: var(--ink); font-size: 0.95rem;
}
.add-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 0.9rem 1rem; margin: 0.9rem 0;
}
.add-card h2 { margin: 0 0 0.6rem; }
.muted-card { opacity: 0.75; }
form label { display: block; margin: 0.5rem 0; font-size: 0.85rem; color: var(--muted); }
form input[type="text"], form input[type="date"], form input[type="number"], form input[type="search"], form select {
  display: block; width: 100%; padding: 0.55rem 0.65rem; margin-top: 0.2rem;
  border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--ink); font-size: 1rem;
}
form label.check { display: flex; align-items: center; gap: 0.5rem; color: var(--ink); }
form label.check input { width: 1.2rem; height: 1.2rem; }
button, .button {
  display: inline-block; padding: 0.55rem 1rem; margin: 0.4rem 0.3rem 0 0; border: 1px solid var(--line);
  border-radius: 8px; background: var(--card); color: var(--ink); font-size: 0.95rem; cursor: pointer; text-decoration: none;
}
button.primary, .button.primary { background: var(--teal); border-color: var(--teal); color: #fff; }
.qt-btn { font-size: 0.75rem; padding: 0.25rem 0.5rem; margin: 0; }
.qt-form form { display: flex; gap: 0.4rem; flex-wrap: wrap; align-items: center; }
.qt-form input[type="text"] { flex: 1; min-width: 220px; width: auto; display: inline-block; }
.qt-form button { margin: 0; }
.login-box { max-width: 420px; margin: 14vh auto; text-align: center; }
@media (min-width: 760px) {
  .charts { grid-template-columns: 1fr 1fr; }
  .chart-box:last-child { grid-column: 1 / -1; }
  .grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1rem; }
}