:root {
  --bg: #f4f6f9; --card: #fff; --text: #1f2933; --muted: #6b7785; --line: #e3e8ee;
  --brand: #1b4f82; --brand-2: #2563a8; --ok: #1e7b4f; --ok-bg: #e5f5ec; --warn: #9a6200; --warn-bg: #fff4dc;
  --bad: #b42318; --bad-bg: #fde9e7; --muted-bg: #eef1f4;
}
* { box-sizing: border-box; }
body { margin: 0; font: 14px/1.5 -apple-system, "Segoe UI", Roboto, Arial, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--brand-2); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 22px; margin: 0 0 16px; }
h2 { font-size: 16px; margin: 0 0 12px; }
.muted { color: var(--muted); }
.right { text-align: right; }
.nowrap { white-space: nowrap; }

/* top bar (client) */
.topbar { background: var(--brand); color: #fff; }
.topbar .in { max-width: 1100px; margin: 0 auto; padding: 0 16px; display: flex; align-items: center; gap: 20px; min-height: 56px; flex-wrap: wrap; }
.topbar .logo { font-weight: 700; font-size: 17px; color: #fff; margin-right: 12px; }
.topbar nav { display: flex; gap: 4px; flex-wrap: wrap; flex: 1; }
.topbar nav a { color: #dbe7f5; padding: 8px 10px; border-radius: 6px; }
.topbar nav a.on, .topbar nav a:hover { background: rgba(255,255,255,.14); color: #fff; text-decoration: none; }
.topbar .user { color: #dbe7f5; font-size: 13px; }
.topbar .user a { color: #fff; margin-left: 8px; }
.wrap { max-width: 1100px; margin: 24px auto; padding: 0 16px; }

/* admin shell */
.shell { display: flex; min-height: 100vh; }
.side { width: 220px; background: #15314f; color: #c9d6e5; flex-shrink: 0; padding: 16px 0; }
.side .logo { color: #fff; font-weight: 700; padding: 0 20px 16px; display: block; }
.side a { display: block; color: #c9d6e5; padding: 9px 20px; }
.side a.on, .side a:hover { background: #1f446c; color: #fff; text-decoration: none; }
.side .who { padding: 16px 20px; font-size: 12px; border-top: 1px solid #244a73; margin-top: 16px; }
.main { flex: 1; padding: 24px; min-width: 0; }
@media (max-width: 800px) { .shell { display: block; } .side { width: auto; } .main { padding: 16px; } }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 18px; margin-bottom: 18px; }
.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); margin-bottom: 18px; }
.two { display: grid; gap: 18px; grid-template-columns: 1fr 1fr; }
@media (max-width: 900px) { .two { grid-template-columns: 1fr; } }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px; }
.stat .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.stat .value { font-size: 22px; font-weight: 700; margin-top: 4px; }
.stat .value.bad { color: var(--bad); }
.stat .value.ok { color: var(--ok); }
.stat .sub { color: var(--muted); font-size: 12px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 9px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; font-weight: 600; background: #fafbfc; }
tr:hover td { background: #fafcff; }
td.num, th.num { text-align: right; white-space: nowrap; }
tfoot td { font-weight: 700; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.badge.bad { background: var(--bad-bg); color: var(--bad); }
.badge.muted { background: var(--muted-bg); color: var(--muted); }

.flash { padding: 11px 14px; border-radius: 8px; margin-bottom: 16px; }
.flash.ok { background: var(--ok-bg); color: var(--ok); }
.flash.bad { background: var(--bad-bg); color: var(--bad); }
.flash.warn { background: var(--warn-bg); color: var(--warn); }

form.inline { display: inline; }
label { display: block; font-weight: 600; font-size: 13px; margin: 10px 0 4px; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=date], select, textarea {
  width: 100%; padding: 9px 10px; border: 1px solid #cfd7e0; border-radius: 7px; font: inherit; background: #fff;
}
textarea { min-height: 140px; resize: vertical; }
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.row > * { flex: 1; min-width: 140px; }
.btn { display: inline-block; background: var(--brand-2); color: #fff; border: 0; border-radius: 7px; padding: 9px 16px; font: inherit; font-weight: 600; cursor: pointer; }
.btn:hover { background: var(--brand); text-decoration: none; }
.btn.light { background: var(--muted-bg); color: var(--text); }
.btn.green { background: var(--ok); }
.btn.red { background: var(--bad); }
.btn.small { padding: 5px 10px; font-size: 13px; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.filters a { padding: 6px 12px; border-radius: 20px; background: var(--card); border: 1px solid var(--line); color: var(--text); }
.filters a.on { background: var(--brand-2); color: #fff; border-color: var(--brand-2); }
.filters form { display: flex; gap: 6px; margin-left: auto; }
.filters input { width: 240px; }
.pager { display: flex; gap: 12px; align-items: center; margin-top: 12px; color: var(--muted); }

.login-box { max-width: 380px; margin: 80px auto; }
.login-box .card { padding: 28px; }
.login-box h1 { text-align: center; }

.msg { border: 1px solid var(--line); border-radius: 10px; margin-bottom: 14px; overflow: hidden; }
.msg .head { padding: 9px 14px; background: #f7f9fb; display: flex; justify-content: space-between; gap: 10px; font-size: 13px; }
.msg.staff .head { background: #eaf2fb; }
.msg.note .head { background: var(--warn-bg); }
.msg .body { padding: 14px; word-wrap: break-word; }
.msg .files { padding: 0 14px 12px; font-size: 13px; }

.pay-box { border: 2px solid var(--brand-2); }
.dl { display: grid; grid-template-columns: 140px 1fr; gap: 6px 12px; }
.dl dt { color: var(--muted); }
.dl dd { margin: 0; }
.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 14px; }
.tabs a { padding: 7px 14px; border-radius: 7px; background: var(--card); border: 1px solid var(--line); color: var(--text); }
pre.raw { white-space: pre-wrap; word-break: break-all; font-size: 12px; max-height: 200px; overflow: auto; background: #f7f9fb; padding: 8px; margin: 0; }