:root {
    --primary: #1565C0;
    --primary-light: #E3EEFA;
    --text: #000;
    --muted: #5A6270;
    --line: #D9DEE5;
    --surface: #F4F6F9;
    --ok: #2E7D32;
    --warn: #B26A00;
    --bad: #C62828;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif; font-size: 15px; color: var(--text); background: var(--surface); }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 26px; margin: 0 0 16px; }
h2 { font-size: 17px; margin: 0 0 12px; }
.container { max-width: 1200px; margin: 0 auto; padding: 24px 16px 48px; }

.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; background: #000; color: #fff; padding: 12px 24px; flex-wrap: wrap; }
.topbar .brand { color: #fff; font-weight: 700; font-size: 18px; }
.topbar .brand span, .login h1 span { color: #8AB4F8; font-weight: 400; }
.topbar nav { display: flex; align-items: center; gap: 20px; }
.topbar nav a, .topbar .link { color: #fff; }

.card { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 18px; margin-bottom: 16px; }
.card.narrow { max-width: 760px; }
.head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
.head h1 { margin: 0; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 12px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.row > label { flex: 1 1 160px; }
@media (max-width: 860px) { .grid2, .grid3 { grid-template-columns: 1fr; } }

label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 12px; }
label.check { display: flex; align-items: center; gap: 8px; color: var(--text); font-size: 14px; }
input, select, textarea { display: block; width: 100%; margin-top: 4px; padding: 8px 10px; font: inherit; color: var(--text); border: 1px solid var(--line); border-radius: 6px; background: #fff; }
input[type=checkbox] { width: auto; margin: 0; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary-light); border-color: var(--primary); }
input.short { max-width: 140px; }

button, .button { display: inline-block; padding: 9px 18px; font: inherit; font-weight: 600; color: #fff; background: var(--primary); border: 1px solid var(--primary); border-radius: 6px; cursor: pointer; }
button:hover, .button:hover { opacity: .9; text-decoration: none; }
button.secondary { background: #fff; color: var(--primary); border-color: var(--line); }
button.warn { background: #fff; color: var(--warn); border-color: var(--warn); }
button.danger { background: #fff; color: var(--bad); border-color: var(--bad); }
button.small { padding: 4px 10px; font-size: 13px; }
button.link { background: none; border: none; padding: 0; font-weight: 400; }
.buttons { display: flex; gap: 8px; flex-wrap: wrap; }
form.inline { display: inline-flex; gap: 6px; align-items: center; margin: 0; }
form.inline input { margin: 0; }

table { width: 100%; border-collapse: collapse; background: #fff; }
.container > table { border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
th { text-align: left; font-size: 13px; color: var(--muted); background: var(--surface); padding: 10px; border-bottom: 1px solid var(--line); }
td { padding: 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
td.num, th.num { text-align: right; }
tr.revoked td { color: var(--muted); text-decoration: line-through; }
tr.revoked td:last-child { text-decoration: none; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 12px; font-size: 13px; font-weight: 600; white-space: nowrap; }
.badge.paid { background: #E6F4EA; color: var(--ok); }
.badge.due { background: #FFF4E0; color: var(--warn); }
.badge.grace, .badge.expired { background: #FDECEA; color: var(--bad); }
.badge.suspended { background: #EEE; color: #333; }
.badge.cancelled { background: #EEE; color: var(--muted); }

.stats { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin: 16px 0; }
.stat { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 14px; }
.stat span { display: block; font-size: 13px; color: var(--muted); }
.stat strong { font-size: 26px; }
.stat.warn strong { color: var(--warn); }
.stat.bad strong { color: var(--bad); }
@media (max-width: 860px) { .stats { grid-template-columns: repeat(2, 1fr); } }

.search { display: flex; gap: 8px; margin-bottom: 16px; }
.search input { margin: 0; }
.alert { padding: 12px 16px; border-radius: 6px; margin-bottom: 16px; }
.alert.ok { background: #E6F4EA; color: #1B5E20; }
.alert.err { background: #FDECEA; color: var(--bad); }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.error { color: var(--bad); }
.big { font-size: 22px; font-weight: 700; margin: 4px 0; }
.key { display: flex; align-items: center; gap: 8px; margin: 6px 0; }
.key code { font-size: 16px; font-weight: 600; letter-spacing: .5px; }

.login { max-width: 380px; margin: 10vh auto 0; }
.login h1 { text-align: center; margin-bottom: 20px; }
.login button { width: 100%; margin-top: 4px; }