:root {
  --navy: #0b1a45;
  --teal: #0b91a5;
  --bg: #fbfaf8;
  --border: #dcd8d0;
  --muted: #6b6f76;
  --danger: #b3261e;
  --ok: #1b5e20;
}
* { box-sizing: border-box; }
body {
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  margin: 0; background: var(--bg); color: var(--navy); font-size: 14px;
}
a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }

header.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; background: var(--navy); color: #fff; flex-wrap: wrap; gap: 10px;
}
header.topbar .brand { font-weight: 800; font-size: 18px; letter-spacing: .02em; }
header.topbar nav { display: flex; gap: 18px; flex-wrap: wrap; }
header.topbar nav a { color: #cfd6ea; font-weight: 600; font-size: 13px; }
header.topbar nav a.active, header.topbar nav a:hover { color: #fff; }
header.topbar .user { font-size: 13px; color: #cfd6ea; display: flex; align-items: center; gap: 10px; }
header.topbar form { margin: 0; }
header.topbar button.link { background: none; border: none; color: #cfd6ea; font-weight: 600; cursor: pointer; font-size: 13px; padding: 0; }
header.topbar button.link:hover { color: #fff; text-decoration: underline; }

main { max-width: 1080px; margin: 0 auto; padding: 24px; }
main.narrow { max-width: 480px; }

h1 { font-size: 22px; margin: 0 0 16px; }
h2 { font-size: 16px; margin: 24px 0 10px; }

.card { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 20px; margin-bottom: 16px; }
.grid-stats { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }
.stat { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 14px 18px; min-width: 140px; }
.stat .num { font-size: 24px; font-weight: 800; }
.stat .label { font-size: 12px; color: var(--muted); }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 700; font-size: 11px; text-transform: uppercase; letter-spacing: .03em; }
tr:hover td { background: #f7f6f3; }

label { display: block; font-size: 12px; font-weight: 600; color: var(--muted); margin: 10px 0 4px; }
input[type=text], input[type=number], input[type=email], input[type=password], input[type=date], select, textarea {
  width: 100%; padding: 9px 10px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; font-family: inherit; background: #fff; color: var(--navy);
}
textarea { resize: vertical; min-height: 50px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.row > div { flex: 1; min-width: 180px; }
.checks { display: flex; flex-wrap: wrap; gap: 6px 16px; margin-top: 4px; }
.checks label { display: flex; align-items: center; gap: 6px; font-weight: 500; color: var(--navy); margin: 0; font-size: 13px; }
.checks input { width: auto; }
fieldset { border: 1px solid var(--border); border-radius: 10px; padding: 14px; margin: 16px 0; }
legend { font-weight: 700; font-size: 13px; padding: 0 6px; }

button, .btn {
  display: inline-block; background: var(--navy); color: #fff; border: none; padding: 11px 20px;
  border-radius: 9px; font-weight: 700; font-size: 14px; cursor: pointer; text-align: center;
}
button.secondary, .btn.secondary { background: #fff; color: var(--navy); border: 1px solid var(--border-strong, var(--border)); }
button.small { padding: 6px 12px; font-size: 12px; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 100px; font-size: 11px; font-weight: 700; }
.badge.created { background: #eef0f5; color: var(--navy); }
.badge.sent { background: #fff6e0; color: #8a5a00; }
.badge.delivered { background: #e8f5ea; color: var(--ok); }
.badge.paid { background: #e8f5ea; color: var(--ok); }
.badge.unpaid { background: #fdecea; color: var(--danger); }

.alert { padding: 12px 16px; border-radius: 10px; margin-bottom: 16px; font-size: 13px; }
.alert.error { background: #fdecea; color: var(--danger); }
.alert.ok { background: #e8f5ea; color: var(--ok); }

.login-box { max-width: 380px; margin: 60px auto; }
.login-box .brand { text-align: center; font-weight: 800; font-size: 20px; margin-bottom: 20px; color: var(--navy); }

.toolbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }