:root {
  --bg: #f6f7fa;
  --panel: #ffffff;
  --text: #1f2933;
  --muted: #6b7280;
  --accent: #1d4ed8;
  --accent-hover: #1e40af;
  --border: #d6dbe1;
  --good: #047857;
  --warn: #b45309;
  --bad: #b91c1c;
  --row-alt: #f9fafb;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

header.top {
  background: #0f172a;
  color: #fff;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  border-bottom: 1px solid #1e293b;
}
header.top a { color: #cbd5e1; font-size: 0.95rem; }
header.top a:hover { color: #fff; text-decoration: none; }
header.top .brand { color: #fff; font-weight: 600; font-size: 1.05rem; margin-right: 1.5rem; }
header.top .badge { font-size: 0.7rem; background: #334155; color: #cbd5e1; padding: 2px 6px; border-radius: 4px; margin-left: 0.5rem; }

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 4rem;
}

h1 { font-size: 1.5rem; margin: 0 0 0.5rem; }
h2 { font-size: 1.15rem; margin: 1.5rem 0 0.5rem; }
.subtitle { color: var(--muted); margin: 0 0 1.5rem; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.25rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.75rem;
}
.grid .tile {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.9rem 1rem;
  text-decoration: none;
  color: var(--text);
  display: block;
}
.grid .tile:hover { border-color: var(--accent); }
.grid .tile .label { font-size: 0.85rem; color: var(--muted); }
.grid .tile .count { font-size: 1.5rem; font-weight: 600; color: var(--text); margin-top: 4px; }

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}
th, td {
  padding: 0.55rem 0.75rem;
  text-align: left;
  font-size: 0.93rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
tbody tr:nth-child(odd) { background: var(--row-alt); }
tbody tr:hover { background: #eef2ff; }
th { background: #f1f5f9; font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; color: #334155; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

.btn {
  display: inline-block;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 4px;
  padding: 0.5rem 0.95rem;
  cursor: pointer;
  font-size: 0.9rem;
  text-decoration: none;
}
.btn:hover { background: var(--accent-hover); text-decoration: none; color: #fff; }
.btn.secondary { background: #475569; }
.btn.secondary:hover { background: #334155; }
.btn.danger { background: var(--bad); }
.btn.danger:hover { background: #991b1b; }

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

form .row { margin-bottom: 0.85rem; }
form label { display: block; font-size: 0.85rem; color: var(--muted); margin-bottom: 0.2rem; }
form input[type=text], form input[type=number], form input[type=date], form input[type=email], form textarea, form select {
  width: 100%;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.95rem;
  font-family: inherit;
  background: #fff;
}
form input[type=checkbox] { transform: scale(1.1); margin-right: 0.5rem; }

.lines {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.5rem;
}
.lines td, .lines th { padding: 0.35rem 0.45rem; }
.lines input { width: 100%; }

.balance {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  margin: 0.75rem 0;
  padding: 0.65rem 0.85rem;
  background: #f1f5f9;
  border-radius: 4px;
  font-size: 0.95rem;
}
.balance .ok { color: var(--good); font-weight: 600; }
.balance .bad { color: var(--bad); font-weight: 600; }

.pill {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 600;
}
.pill.open { background: #dcfce7; color: var(--good); }
.pill.closed { background: #fee2e2; color: var(--bad); }
.pill.posted { background: #dbeafe; color: var(--accent); }

.err {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: var(--bad);
  padding: 0.65rem 0.85rem;
  border-radius: 4px;
  margin: 0.75rem 0;
  white-space: pre-wrap;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.85rem;
}

.flash {
  background: #ecfdf5;
  border: 1px solid #6ee7b7;
  color: var(--good);
  padding: 0.65rem 0.85rem;
  border-radius: 4px;
  margin: 0.75rem 0;
}

footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
  padding: 1rem;
  border-top: 1px solid var(--border);
}

.muted { color: var(--muted); font-size: 0.85rem; }
code { background: #f1f5f9; padding: 1px 5px; border-radius: 3px; font-size: 0.85em; }