:root {
  --navy: #1F3864;
  --accent: #2E74B5;
  --light: #EAF1FB;
  --grey: #595959;
  --danger: #B3261E;
  --success: #1E7B34;
  --warn: #A15C00;
}

* { box-sizing: border-box; }

body {
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: #f4f6f9;
  color: #1a1a1a;
  margin: 0;
  padding: 0;
}

.topbar {
  background: var(--navy);
  color: #fff;
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.topbar .brand { font-weight: 700; letter-spacing: 0.5px; }
.topbar .brand small { display: block; font-weight: 400; opacity: 0.75; font-size: 12px; }
.topbar a { color: #fff; text-decoration: none; font-size: 14px; opacity: 0.9; }
.topbar a:hover { opacity: 1; text-decoration: underline; }

.container {
  max-width: 960px;
  margin: 32px auto;
  padding: 0 20px;
}

.card {
  background: #fff;
  border: 1px solid #e2e6ec;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
}

h1, h2 { color: var(--navy); margin-top: 0; }
h1 { font-size: 22px; border-bottom: 2px solid var(--navy); padding-bottom: 10px; }
h2 { font-size: 17px; }

label { display: block; font-size: 13px; font-weight: 600; margin: 12px 0 4px; color: var(--grey); }

input[type=text], input[type=email], input[type=tel], input[type=number], textarea {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid #cfd6e0;
  border-radius: 5px;
  font-size: 14px;
}

button, .btn {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 5px;
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
button:hover, .btn:hover { background: var(--navy); }
.btn-secondary { background: #7a8699; }
.btn-secondary:hover { background: var(--grey); }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid #eef0f4; vertical-align: top; }
th { background: var(--light); color: var(--navy); font-size: 12px; text-transform: uppercase; }

.badge { padding: 3px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-created { background: #EAF1FB; color: var(--accent); }
.badge-paid { background: #E5F5E9; color: var(--success); }
.badge-partially_paid { background: #FFF3E0; color: var(--warn); }
.badge-cancelled, .badge-expired { background: #FBE9E7; color: var(--danger); }

.alert { padding: 10px 14px; border-radius: 5px; margin-bottom: 16px; font-size: 14px; }
.alert-success { background: #E5F5E9; color: var(--success); }
.alert-error { background: #FBE9E7; color: var(--danger); }

.login-wrap {
  max-width: 360px;
  margin: 80px auto;
}

.muted { color: var(--grey); font-size: 12px; }