:root {
  --bg: #fafafa;
  --fg: #222;
  --muted: #888;
  --border: #ddd;
  --primary: #1e6fdc;
  --primary-dark: #154f9b;
  --danger: #c0392b;
  --ok-bg: #e7f7e9;
  --ok-fg: #1f6e2a;
  --err-bg: #fde9e7;
  --err-fg: #a02822;
  --warn-bg: #fff4dc;
  --warn-fg: #8a6300;
  --row-weekend: #f3f3f3;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font: 14px/1.4 -apple-system, Segoe UI, Roboto, sans-serif; color: var(--fg); background: var(--bg); }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.topbar { display: flex; align-items: center; gap: 16px; padding: 8px 18px; background: white; border-bottom: 1px solid var(--border); }
.topbar .brand a { font-weight: 600; color: var(--fg); }
.topbar nav { display: flex; gap: 14px; align-items: center; flex: 1; }
.topbar nav .who { margin-left: auto; color: var(--muted); }
main { padding: 18px 24px; max-width: 1400px; }
footer { padding: 16px 24px; color: var(--muted); font-size: 12px; }

h1 { margin: 8px 0 18px; }
h2 { margin-top: 28px; }
.muted { color: var(--muted); }
.mono { font-family: ui-monospace, Consolas, Menlo, monospace; }
.small { font-size: 12px; }
.badge { display: inline-block; padding: 1px 6px; background: #eef; color: #336; border-radius: 4px; font-size: 11px; }

.flash { padding: 8px 12px; margin-bottom: 12px; border-radius: 4px; }
.flash-ok { background: var(--ok-bg); color: var(--ok-fg); }
.flash-err { background: var(--err-bg); color: var(--err-fg); }
.flash-warn { background: var(--warn-bg); color: var(--warn-fg); }

.card { background: white; padding: 16px; border: 1px solid var(--border); border-radius: 6px; margin: 12px 0; }
.card.narrow { max-width: 560px; }
.card label { display: block; margin: 8px 0; }
.card input[type=text], .card input[type=email], .card input[type=password], .card input[type=number], .card input[type=date], .card select { padding: 6px 8px; border: 1px solid var(--border); border-radius: 4px; font-size: 14px; width: 100%; max-width: 320px; }
.card input[type=checkbox] { margin-right: 6px; }
.card fieldset { border: 1px solid var(--border); border-radius: 4px; padding: 8px; margin: 8px 0; }
.card fieldset label { display: inline-block; margin-right: 12px; }

button { padding: 6px 12px; border: 1px solid var(--border); border-radius: 4px; background: white; cursor: pointer; font-size: 13px; }
button:hover { background: #f0f0f0; }
button.btn-primary, .btn-primary { background: var(--primary); color: white; border-color: var(--primary-dark); }
button.btn-primary:hover { background: var(--primary-dark); }
button.btn-danger, .btn-danger { background: white; color: var(--danger); border-color: var(--danger); }
button.btn-danger:hover { background: #fdeae6; }
button.btn-secondary { background: white; }

table.grid { border-collapse: collapse; width: 100%; background: white; }
table.grid th, table.grid td { border: 1px solid var(--border); padding: 4px 8px; text-align: left; vertical-align: middle; }
table.grid th { background: #f0f3f7; font-weight: 600; }
table.grid tr.muted { color: var(--muted); }
table.grid tr.weekend { background: var(--row-weekend); }
table.grid input, table.grid select { padding: 3px 5px; border: 1px solid var(--border); border-radius: 3px; font-size: 13px; }
table.grid td.actions { white-space: nowrap; }
table.grid td.actions button { padding: 3px 8px; font-size: 12px; margin-right: 2px; }

.header-bar { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.inline-form { display: inline-flex; gap: 10px; align-items: center; }
.inline-form label { display: inline-flex; gap: 6px; align-items: center; margin: 0; }
.inline-form input, .inline-form select { padding: 4px 6px; border: 1px solid var(--border); border-radius: 4px; }

details.card summary { cursor: pointer; font-weight: 600; }
details.card ul { margin: 8px 0 0; }