:root {
  --ink: #1f2933; --muted: #616e7c; --line: #e4e7eb; --bg: #f5f7fa;
  --accent: #2563eb; --accent-ink: #fff; --danger: #c81e1e; --ok-bg: #e6f6ec; --err-bg: #fde8e8;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--ink); background: var(--bg);
}
* { box-sizing: border-box; }
body { margin: 0; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.6rem; margin: 0 0 1rem; }
h2 { font-size: 1.15rem; margin: 2rem 0 .75rem; }

.topbar { display: flex; align-items: center; gap: 2rem; padding: .75rem 1.5rem; background: #111827; color: #e5e7eb; }
.topbar .brand { color: #fff; font-weight: 700; font-size: 1.1rem; }
.topbar nav { display: flex; gap: .25rem; flex: 1; }
.topbar nav a { color: #cbd2d9; padding: .4rem .75rem; border-radius: 6px; }
.topbar nav a.active, .topbar nav a:hover { background: #374151; color: #fff; text-decoration: none; }
.topbar .logout { display: flex; gap: .75rem; align-items: center; font-size: .9rem; }

main { max-width: 1000px; margin: 2rem auto; padding: 0 1.5rem; }
.pagehead { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.pagehead h1, .pagehead h2 { margin-bottom: 1rem; }
.actions { display: flex; gap: .5rem; }
.actions form { margin: 0; }

.card { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 1.25rem 1.5rem; }
dl.card { display: grid; grid-template-columns: 160px 1fr; gap: .6rem 1rem; margin: 0; }
dl.card dt { color: var(--muted); }
dl.card dd { margin: 0; }
.pre { white-space: pre-wrap; }

table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
th, td { text-align: left; padding: .6rem .9rem; border-bottom: 1px solid var(--line); }
th { background: #f9fafb; font-weight: 600; font-size: .85rem; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; }
tr:last-child td { border-bottom: none; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }

.search { display: flex; gap: .5rem; align-items: center; margin-bottom: 1rem; }
.search input { flex: 1; max-width: 420px; }
.empty, .hint { color: var(--muted); }

.form { display: grid; gap: 1rem; max-width: 640px; }
.form label { display: grid; gap: .35rem; font-weight: 600; font-size: .9rem; }
.form .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
label.check { display: flex !important; align-items: center; gap: .5rem; font-weight: 400 !important; }
fieldset { border: 1px solid var(--line); border-radius: 8px; padding: .75rem 1rem; }
legend { font-weight: 600; font-size: .9rem; padding: 0 .25rem; }
.checks { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: .4rem; }
.buttons { display: flex; gap: 1rem; align-items: center; }

input, select, textarea { font: inherit; padding: .5rem .65rem; border: 1px solid #cbd2d9; border-radius: 6px; background: #fff; width: 100%; }
input[type=checkbox] { width: auto; }
textarea { resize: vertical; }
button, .button { font: inherit; display: inline-block; padding: .45rem .9rem; border-radius: 6px; border: 1px solid #cbd2d9; background: #fff; color: var(--ink); cursor: pointer; }
button:hover, .button:hover { background: #f3f4f6; text-decoration: none; }
.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.primary:hover { background: #1d4ed8; }
.danger { color: var(--danger); border-color: #f5b5b5; }
button.link { background: none; border: none; color: #cbd2d9; padding: 0; }
button.link:hover { color: #fff; text-decoration: underline; background: none; }

.flash { padding: .7rem 1rem; border-radius: 8px; margin-bottom: 1rem; }
.flash.ok { background: var(--ok-bg); }
.flash.err { background: var(--err-bg); color: #9b1c1c; }

.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.tile { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 1.5rem; display: grid; gap: .25rem; color: var(--ink); }
.tile strong { font-size: 2rem; }
.tile span { color: var(--muted); }
.tile:hover { border-color: var(--accent); text-decoration: none; }
ul.plain { padding-left: 1.2rem; }

.login-page { display: grid; place-items: center; min-height: 100vh; }
.login { display: grid; gap: 1rem; width: 340px; }
.login label { display: grid; gap: .35rem; font-weight: 600; font-size: .9rem; }