:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1c1f24;
  --muted: #6b7280;
  --border: #e5e7eb;
  --accent: #1f6feb;
  --accent-text: #ffffff;
  --success-bg: #e7f6ec;
  --success-text: #1a6b35;
  --error-bg: #fdecec;
  --error-text: #a3222b;
  --highlight: #eef4ff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418;
    --card: #1b1f25;
    --text: #e6e8eb;
    --muted: #9aa3ad;
    --border: #2c323a;
    --accent: #4c8dff;
    --success-bg: #173222;
    --success-text: #8fdcaa;
    --error-bg: #3a1a1d;
    --error-text: #f4a3aa;
    --highlight: #1d2a40;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.5rem; margin: 0 0 .5rem; }
h2 { font-size: 1.1rem; margin: 0 0 .75rem; }

.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .75rem 16px; background: var(--card); border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; color: var(--text); }
.topbar nav { display: flex; align-items: center; gap: 1rem; }

.container { max-width: 960px; margin: 0 auto; padding: 16px; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 1.25rem; margin-bottom: 1rem; overflow-x: auto;
}
.card.narrow { max-width: 420px; margin: 3rem auto; }
.total { text-align: center; }
.big { font-size: 2.5rem; font-weight: 700; font-variant-numeric: tabular-nums; margin: .25rem 0; }

label { display: block; margin-bottom: 1rem; font-weight: 500; }
input[type=text], input[type=tel], input[type=password], input:not([type]), input[type=file] {
  display: block; width: 100%; margin-top: .35rem; padding: .6rem .75rem;
  font: inherit; color: var(--text); background: var(--bg);
  border: 1px solid var(--border); border-radius: 8px;
}
.row { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; }
.row input { flex: 1 1 180px; margin: 0; }
.check { display: flex; align-items: center; gap: .4rem; margin: 0; font-weight: 400; }

.btn {
  display: inline-block; padding: .6rem 1.1rem; border: 0; border-radius: 8px;
  background: var(--accent); color: var(--accent-text); font: inherit; font-weight: 600; cursor: pointer;
}
.btn:hover { text-decoration: none; filter: brightness(1.08); }
.btn-small { padding: .35rem .8rem; font-size: .9rem; }
.link { background: none; border: 0; padding: 0; color: var(--accent); font: inherit; cursor: pointer; }
.danger { color: var(--error-text); }
form.inline { display: inline; }

table { width: 100%; border-collapse: collapse; }
th, td { padding: .6rem .5rem; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: .85rem; color: var(--muted); font-weight: 600; }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
tr.me td { background: var(--highlight); }
tr.inactive td { opacity: .55; }
.actions { white-space: nowrap; }
.actions form + form { margin-left: .75rem; }

.tag {
  display: inline-block; font-size: .72rem; padding: 0 .4rem; border-radius: 4px;
  background: var(--highlight); color: var(--accent); vertical-align: middle;
}
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.alert { padding: .75rem 1rem; border-radius: 8px; margin: 0 0 1rem; }
.alert.success { background: var(--success-bg); color: var(--success-text); }
.alert.error { background: var(--error-bg); color: var(--error-text); }
.pin { font-size: 1.4rem; font-weight: 700; letter-spacing: .15em; font-variant-numeric: tabular-nums; }

@media (max-width: 600px) {
  .hide-sm { display: none; }
  .big { font-size: 2rem; }
  .card.narrow { margin: 1.5rem auto; }
}