:root {
  --navy: #1f3864;
  --navy-dark: #16294a;
  --accent: #2f6fed;
  --danger: #dc3545;
  --warning: #fd7e14;
  --success: #198754;
  --muted: #6c757d;
  --bg: #f2f4f8;
  --card: #ffffff;
  --border: #e2e6ee;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif; background: var(--bg); color: #222; }
header {
  background: var(--navy-dark); color: #fff; padding: 12px 22px;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px;
}
.brand-name { font-size: 1.15rem; font-weight: 700; }
.brand-credit { font-size: .78rem; color: #b8c4dd; }
.header-actions { font-size: .85rem; }
.header-actions a { color: #cfe0ff; text-decoration: none; cursor: pointer; }
.header-actions a:hover { text-decoration: underline; }
main { max-width: 1000px; margin: 0 auto; padding: 24px 20px 60px; }
h2.page-title { color: var(--navy); margin: 0 0 4px; }
p.page-sub { color: var(--muted); margin: 0 0 18px; font-size: .9rem; }
.toolbar { display: flex; gap: 10px; margin-bottom: 16px; }
.btn {
  display: inline-block; padding: 8px 14px; border-radius: 6px; border: 1px solid transparent;
  background: var(--accent); color: #fff; font-size: .85rem; cursor: pointer; text-decoration: none;
}
.btn.secondary { background: #fff; color: var(--navy); border-color: var(--border); }
table { width: 100%; border-collapse: collapse; background: var(--card); font-size: .88rem; }
table th { background: var(--navy); color: #fff; text-align: left; padding: 8px 10px; font-weight: 600; }
table td { padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
a.link { color: var(--accent); text-decoration: none; cursor: pointer; }
a.link:hover { text-decoration: underline; }
.badge { display: inline-block; padding: 3px 9px; border-radius: 20px; font-size: .68rem; font-weight: 600; color: #fff; background: var(--success); vertical-align: middle; margin-left: 8px; }
.badge.expired { background: var(--danger); }
.badge.expiring { background: var(--warning); }
.badge.valid { background: var(--success); }
.empty-state { color: var(--muted); padding: 24px; text-align: center; font-size: .9rem; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 16px 18px; margin-bottom: 18px; }
.card h3 { margin: 0 0 10px; color: var(--navy); font-size: .95rem; }
.card ul { margin: 0; padding-left: 20px; font-size: .85rem; }
.card li { margin-bottom: 6px; }
.overlay { display: none; position: fixed; inset: 0; background: rgba(20,30,50,.5); align-items: flex-start; justify-content: center; padding: 40px 16px; overflow-y: auto; z-index: 50; }
.overlay.active { display: flex; }
.modal { background: #fff; border-radius: 10px; padding: 22px; width: 100%; max-width: 560px; }
.modal h3 { margin-top: 0; color: var(--navy); }
.modal .close { float: right; cursor: pointer; font-size: 1.3rem; color: var(--muted); border: none; background: none; }
.field { margin-bottom: 12px; }
.field label { display: block; font-size: .82rem; font-weight: 600; color: var(--navy); margin-bottom: 4px; }
.field input, .field select { width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: .88rem; font-family: inherit; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-actions { margin-top: 16px; display: flex; gap: 10px; justify-content: flex-end; }
.toast { display: none; position: fixed; bottom: 22px; right: 22px; background: var(--navy); color: #fff; padding: 12px 18px; border-radius: 8px; font-size: .88rem; z-index: 100; box-shadow: 0 4px 14px rgba(0,0,0,.2); }
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(160deg, var(--navy), var(--navy-dark)); padding: 20px; }
.login-card { background: #fff; border-radius: 12px; padding: 34px 30px; width: 100%; max-width: 380px; text-align: center; }
.login-card h1 { color: var(--navy); font-size: 1.3rem; margin: 6px 0 2px; }
.login-card .sub { color: var(--muted); font-size: .84rem; margin-bottom: 20px; }
.login-error { color: var(--danger); font-size: .84rem; margin: 4px 0 2px; text-align: left; }