:root {
  --bg: #f4f5f8; --card: #fff; --ink: #151821; --muted: #6b7385; --line: #e6e8ee;
  --brand: #3b5bff; --brand-ink: #fff; --side: #10131a; --side-ink: #aab1c2;
  --ok: #12805c; --ok-bg: #e5f6ef; --warn: #a15c00; --warn-bg: #fff3df;
  --err: #c0322b; --err-bg: #fde9e7; --info-bg: #e9eeff;
  --radius: 12px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d0f14; --card: #161a22; --ink: #e8eaf0; --muted: #8b93a5; --line: #252a35;
    --side: #0a0c10; --ok-bg: #0f2a20; --warn-bg: #2d2210; --err-bg: #301615; --info-bg: #1a2140;
    --ok: #4cd39c; --warn: #f2b45a; --err: #ff7b72;
  }
}
* { box-sizing: border-box; }
body { margin: 0; font: 14px/1.5 Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif; background: var(--bg); color: var(--ink); }
a { color: var(--brand); text-decoration: none; }
h1 { font-size: 22px; margin: 2px 0; letter-spacing: -.01em; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
h2 { font-size: 15px; margin: 0 0 14px; }
.muted { color: var(--muted); margin: 0; }
.small { font-size: 12.5px; }
.center { text-align: center; }
code { background: var(--bg); border: 1px solid var(--line); border-radius: 6px; padding: 1px 6px; font-size: 12.5px; word-break: break-all; }

.shell { display: grid; grid-template-columns: 232px 1fr; min-height: 100vh; background: linear-gradient(to right, var(--side) 232px, transparent 232px); }
.side { background: var(--side); color: var(--side-ink); padding: 20px 14px; display: flex; flex-direction: column; gap: 22px; position: sticky; top: 0; height: 100vh; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 16px; color: #fff; }
.login .brand, .pay .brand { color: var(--ink); }
.logo { width: 32px; height: 32px; border-radius: 9px; background: linear-gradient(135deg, #3b5bff, #7a5cff); color: #fff; display: grid; place-items: center; font-size: 13px; font-weight: 800; letter-spacing: .02em; }
.side nav { display: flex; flex-direction: column; gap: 2px; }
.side nav a { color: var(--side-ink); display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 8px; font-weight: 500; }
.side nav a svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linejoin: round; }
.side nav a:hover { background: #ffffff0d; color: #fff; }
.side nav a.on { background: #3b5bff26; color: #fff; }
.logout { margin-top: auto; color: var(--side-ink); padding: 9px 10px; }
main { padding: 28px 32px 60px; max-width: 1280px; width: 100%; min-width: 0; }

.head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; margin-bottom: 22px; flex-wrap: wrap; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin-bottom: 18px; overflow-x: auto; }
.card.flush { padding: 0; overflow-x: auto; }
.card .pad, .card.flush h2 { padding: 18px 20px 0; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: start; }
.grid2.wide-left { grid-template-columns: 1.5fr 1fr; }
.grid2.wide-right { grid-template-columns: 1fr 2fr; }
.grid2 > * { min-width: 0; }

.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 18px; }
.kpi { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; display: flex; flex-direction: column; gap: 4px; }
.kpi span { color: var(--muted); font-size: 12.5px; font-weight: 500; }
.kpi b { font-size: 24px; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.kpi small { color: var(--muted); }
.kpi.warn b { color: var(--err); }

table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: 12px; color: var(--muted); font-weight: 600; padding: 10px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; }
td { padding: 11px 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
td small { display: block; color: var(--muted); font-size: 12px; }
.card:not(.flush) table td:first-child, .card:not(.flush) table th:first-child { padding-left: 0; }
.num { font-variant-numeric: tabular-nums; white-space: nowrap; }
tr.link { cursor: pointer; }
tr.link:hover td { background: var(--bg); }
.msgcell { max-width: 480px; }
.err-text { color: var(--err); }
.empty { color: var(--muted); padding: 18px 20px; margin: 0; }
.card:not(.flush) .empty { padding: 4px 0; }

.badge { display: inline-block; padding: 2px 9px; border-radius: 99px; font-size: 12px; font-weight: 600; white-space: nowrap; background: var(--info-bg); color: var(--brand); }
.b-active, .b-paid { background: var(--ok-bg); color: var(--ok); }
.b-pending { background: var(--info-bg); color: var(--brand); }
.b-overdue, .b-paused { background: var(--warn-bg); color: var(--warn); }
.b-suspended { background: var(--err-bg); color: var(--err); }
.b-canceled { background: var(--bg); color: var(--muted); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; border: 1px solid var(--line); background: var(--card); color: var(--ink); padding: 8px 14px; border-radius: 9px; font: inherit; font-weight: 600; cursor: pointer; white-space: nowrap; }
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--brand); color: var(--brand-ink); border-color: var(--brand); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--err); }
.btn.ghost { background: transparent; border-color: transparent; }
.btn.sm { padding: 4px 10px; font-size: 12.5px; }
.btn.full { width: 100%; padding: 11px; }

.form label { display: flex; flex-direction: column; gap: 5px; font-size: 12.5px; font-weight: 600; color: var(--muted); margin-bottom: 12px; }
.form label em { font-weight: 400; font-style: normal; }
.form h2:not(:first-of-type) { margin-top: 10px; padding-top: 18px; border-top: 1px solid var(--line); }
input, select, textarea { font: inherit; color: var(--ink); background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 9px 11px; width: 100%; }
input:focus, select:focus, textarea:focus { outline: 2px solid #3b5bff40; border-color: var(--brand); }
textarea { resize: vertical; font-size: 13px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.row.three { grid-template-columns: repeat(3, 1fr); }
label.check { flex-direction: row !important; align-items: center; gap: 8px !important; color: var(--ink) !important; font-weight: 500 !important; }
label.check input { width: auto; }
fieldset { border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px 2px; margin: 0 0 14px; }
legend { font-size: 12.5px; font-weight: 600; color: var(--muted); padding: 0 4px; }
.tpls { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }
.filters { display: flex; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.filters input:not([type=month]) { flex: 1; min-width: 200px; }
.filters select, .filters input[type=month] { width: auto; }

.flash { padding: 11px 14px; border-radius: 9px; margin-bottom: 16px; background: var(--ok-bg); color: var(--ok); font-weight: 500; }
.flash.err { background: var(--err-bg); color: var(--err); }
.flash.warn { background: var(--warn-bg); color: var(--warn); }

.bars { display: flex; align-items: flex-end; gap: 14px; height: 200px; padding-top: 6px; }
.bar { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 6px; height: 100%; }
.bar .track { flex: 1; width: 100%; position: relative; display: flex; align-items: flex-end; justify-content: center; gap: 4px; }
.bar i { display: block; width: 40%; max-width: 26px; border-radius: 5px 5px 0 0; min-height: 2px; }
.bar span { font-size: 12px; color: var(--muted); }
i.billed { background: #c9d2ff; }
i.paid { background: var(--brand); }
@media (prefers-color-scheme: dark) { i.billed { background: #2c3770; } }
.legend { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 12.5px; margin: 12px 0 0; }
.legend i { width: 10px; height: 10px; border-radius: 3px; display: inline-block; margin-left: 8px; }

.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li { padding: 7px 0 7px 16px; border-left: 2px solid var(--line); position: relative; }
.timeline li::before { content: ""; position: absolute; left: -5px; top: 13px; width: 8px; height: 8px; border-radius: 50%; background: var(--brand); }
.timeline b { font-weight: 500; display: block; }
.timeline small { color: var(--muted); }
.key { display: block; padding: 8px 10px; }
.dl { display: grid; grid-template-columns: 140px 1fr; gap: 10px 14px; margin: 0; }
.dl dt { color: var(--muted); font-weight: 600; font-size: 12.5px; }
.dl dd { margin: 0; }
.dl small { display: block; color: var(--muted); margin-top: 4px; }

.chat { display: flex; flex-direction: column; gap: 10px; }
.msg { max-width: 560px; background: var(--info-bg); padding: 10px 12px; border-radius: 12px 12px 12px 4px; }
.msg.out { align-self: flex-end; background: var(--ok-bg); border-radius: 12px 12px 4px 12px; }
.msg.fail { background: var(--err-bg); }
.msg pre { margin: 0; white-space: pre-wrap; font: inherit; }
.msg small { color: var(--muted); font-size: 11.5px; }

body.auth { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login { width: 100%; max-width: 400px; padding: 30px; display: flex; flex-direction: column; gap: 12px; }
.login label { display: flex; flex-direction: column; gap: 5px; font-weight: 600; font-size: 13px; color: var(--muted); }
.pay h1 { font-size: 20px; }
.amount { font-size: 38px; font-weight: 700; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.methods { display: flex; flex-direction: column; gap: 8px; }
.method { display: flex; justify-content: space-between; align-items: center; border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; color: var(--ink); }
.method:hover { border-color: var(--brand); background: var(--info-bg); }
.method small { color: var(--muted); }

@media (max-width: 1000px) {
  .kpis { grid-template-columns: 1fr 1fr; }
  .grid2, .grid2.wide-left, .grid2.wide-right, .tpls { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .shell { grid-template-columns: minmax(0, 1fr); background: none; }
  .side, .side nav { min-width: 0; }
  .side { position: static; height: auto; flex-direction: row; flex-wrap: wrap; align-items: center; padding: 12px 16px; gap: 10px; }
  .side nav { flex-direction: row; overflow-x: auto; width: 100%; order: 3; }
  .side nav a { white-space: nowrap; padding: 7px 10px; }
  .logout { margin: 0 0 0 auto; }
  main { padding: 20px 16px 48px; }
  .row, .row.three { grid-template-columns: 1fr; }
  .kpi b { font-size: 18px; }
  .kpis { gap: 10px; }
  .kpi { padding: 12px 14px; }
}
.checkout-total { margin: 0; color: var(--muted); }
.checkout-total .amount { display: block; color: var(--ink); }
.state h1 { margin-bottom: 6px; }