:root {
  --bg: #f6f7f9; --card: #fff; --text: #1c2330; --muted: #667085; --line: #e4e7ec; --line2: #d0d5dd;
  --accent: #f79009; --accent-text: #fff; --link: #b54708;
  --ok-bg: #ecfdf3; --ok: #067647; --warn-bg: #fffaeb; --warn: #b54708; --bad-bg: #fef3f2; --bad: #b42318;
  --info-bg: #eff8ff; --info: #175cd3; --grey-bg: #f2f4f7; --grey: #475467;
  --side: #101828; --side-text: #d0d5dd;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115; --card: #181b21; --text: #e6e8eb; --muted: #98a2b3; --line: #2a2f37; --line2: #3a404a;
    --link: #fdb022; --ok-bg: #053321; --ok: #75e0a7; --warn-bg: #4e1d09; --warn: #fec84b; --bad-bg: #55160c;
    --bad: #fda29b; --info-bg: #102a56; --info: #84caff; --grey-bg: #22262e; --grey: #cfd4dc; --side: #0b0d10;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.55 system-ui, "Segoe UI", Roboto, sans-serif; }
a { color: var(--link); }
h1 { font-size: 26px; line-height: 1.25; margin: 0 0 8px; }
h2 { font-size: 19px; margin: 0 0 12px; }
h3 { font-size: 16px; margin: 0 0 8px; }
p { margin: 0 0 12px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.mono { font-family: ui-monospace, Consolas, monospace; font-size: 13px; word-break: break-all; }

/* ---------- site */
.top { background: var(--card); border-bottom: 1px solid var(--line); }
.top .in { max-width: 1040px; margin: 0 auto; padding: 12px 16px; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 17px; color: var(--text); text-decoration: none; margin-right: auto; }
.top nav { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.top nav a { color: var(--text); text-decoration: none; font-size: 14px; }
.top nav form { margin: 0; }
main.site { max-width: 1040px; margin: 0 auto; padding: 28px 16px 48px; }
main.narrow { max-width: 460px; }
footer.site { border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
footer.site .in { max-width: 1040px; margin: 0 auto; padding: 18px 16px; display: flex; gap: 16px; flex-wrap: wrap; }
footer.site a { color: var(--muted); }
.hero { padding: 24px 0 12px; }
.hero h1 { font-size: 32px; }
.hero p { font-size: 17px; color: var(--muted); max-width: 640px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 20px; margin-bottom: 18px; min-width: 0; }
.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.plan { display: flex; flex-direction: column; }
.plan .price { font-size: 34px; font-weight: 700; margin: 4px 0; }
.plan ul { padding-left: 18px; margin: 8px 0 16px; flex: 1; }
.dl { display: grid; grid-template-columns: minmax(110px, max-content) 1fr; gap: 6px 16px; margin: 0; }
.dl dt { color: var(--muted); }
.dl dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }

label { display: block; font-size: 14px; font-weight: 600; margin: 12px 0 4px; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=search], input[type=url], select, textarea {
  width: 100%; padding: 9px 11px; border: 1px solid var(--line2); border-radius: 8px; font: inherit;
  background: var(--card); color: var(--text); }
textarea { min-height: 90px; }
.check { display: flex; gap: 8px; align-items: flex-start; font-weight: 400; }
.check input { margin-top: 4px; }
button, .btn { display: inline-block; font: inherit; font-weight: 600; padding: 9px 16px; border-radius: 8px; border: 1px solid var(--line2);
  background: var(--card); color: var(--text); cursor: pointer; text-decoration: none; }
button.primary, .btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
button.danger { background: var(--bad); border-color: var(--bad); color: #fff; }
button.link { border: 0; background: none; padding: 0; color: var(--text); font-weight: 400; font-size: 14px; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.mt { margin-top: 16px; }
.grow { flex: 1; min-width: 220px; width: auto; }
form.inline { display: inline; }
input.short { width: 110px; }
input.code { font: 700 24px/1.2 ui-monospace, Consolas, monospace; letter-spacing: 8px; text-align: center; max-width: 220px; }

.flash { border-radius: 8px; padding: 10px 12px; margin-bottom: 16px; border: 1px solid transparent; }
.flash.ok { background: var(--ok-bg); color: var(--ok); }
.flash.err { background: var(--bad-bg); color: var(--bad); }
.flash.info { background: var(--info-bg); color: var(--info); }

.badge { display: inline-block; font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 999px; background: var(--grey-bg); color: var(--grey); white-space: nowrap; }
.badge.active, .badge.paid, .badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.expired, .badge.unused, .badge.pending, .badge.open { background: var(--warn-bg); color: var(--warn); }
.badge.suspended, .badge.failed, .badge.revoked, .badge.refunded, .badge.closed { background: var(--bad-bg); color: var(--bad); }
.badge.admin { background: var(--info-bg); color: var(--info); }

.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); white-space: nowrap; }
td.nowrap { white-space: nowrap; }

/* ---------- admin */
.admin { display: grid; grid-template-columns: 220px minmax(0, 1fr); min-height: 100vh; }
.grid.wide { grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); }
.side { background: var(--side); color: var(--side-text); padding: 16px 12px; }
.side .brand { color: #fff; display: block; margin: 4px 8px 16px; }
.side a, .side button { display: block; width: 100%; text-align: left; color: var(--side-text); text-decoration: none; padding: 8px 10px;
  border-radius: 8px; font-size: 14px; background: none; border: 0; font-weight: 400; }
.side a.on, .side a:hover { background: rgba(255,255,255,.08); color: #fff; }
.side form { margin: 12px 0 0; }
.adm-main { padding: 24px; min-width: 0; }
.stats { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); margin-bottom: 18px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px; }
.stat .n { font-size: 26px; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat .l { color: var(--muted); font-size: 13px; }
.filters { display: flex; gap: 6px; flex-wrap: wrap; margin: 10px 0; }
.filters a { font-size: 13px; padding: 4px 10px; border: 1px solid var(--line2); border-radius: 999px; text-decoration: none; color: var(--text); }
.filters a.on { background: var(--accent); border-color: var(--accent); color: #fff; }
.pager { display: flex; gap: 10px; align-items: center; margin-top: 12px; }
.actions form { border-top: 1px solid var(--line); padding-top: 12px; margin-top: 12px; }
.actions .row input[type=number] { width: 100px; }

@media (max-width: 800px) {
  .admin { grid-template-columns: minmax(0, 1fr); }
  .side { display: flex; flex-wrap: wrap; align-items: center; gap: 2px 4px; padding: 10px; }
  .side .brand { width: 100%; margin: 0 0 6px; }
  .side a, .side button { width: auto; padding: 5px 9px; }
  .grid.wide { grid-template-columns: minmax(0, 1fr); }
  .side form { margin: 0; }
  .adm-main { padding: 16px; }
  .hero h1 { font-size: 26px; }
}