:root {
  --bg: #0e1116;
  --bg2: #151a22;
  --bg3: #1c2430;
  --border: #242e3c;
  --text: #e6ebf2;
  --muted: #8b98ab;
  --accent: #4f8cff;
  --ok: #2fbf71;
  --warn: #e0a832;
  --err: #e05252;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
code { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.92em; }

/* ---------- layout ---------- */
.shell { display: flex; min-height: 100vh; }
.sidebar {
  width: 224px;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  padding: 18px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.brand { font-size: 18px; font-weight: 700; letter-spacing: 0.5px; cursor: default; }
.brand span { color: var(--muted); font-weight: 500; font-size: 13px; margin-left: 6px; }
.sidebar nav { display: flex; flex-direction: column; gap: 2px; margin-top: 18px; }
.sidebar nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 13.5px;
}
.sidebar nav a:hover { color: var(--text); background: var(--bg3); }
.sidebar nav a.active { background: var(--bg3); color: var(--text); }
.side-foot { margin-top: auto; display: flex; flex-direction: column; gap: 6px; }
.side-foot a { color: var(--muted); text-decoration: none; font-size: 12.5px; padding: 6px 10px; }
.side-foot a:hover { color: var(--text); }
.side-foot .ver { color: #55617a; font-size: 11px; padding: 0 10px; }

.main { flex: 1; min-width: 0; padding: 26px 30px 40px; max-width: 1280px; }

.page-title { font-size: 20px; font-weight: 600; margin: 0; }
.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 18px; flex-wrap: wrap; }
.back { color: var(--muted); text-decoration: none; font-size: 13px; display: inline-block; margin-bottom: 10px; }
.back:hover { color: var(--text); }
h2 { font-size: 15px; font-weight: 600; margin: 0 0 12px; }
.section-title { font-size: 13px; color: var(--muted); font-weight: 500; margin: 14px 0 6px; }

/* ---------- cards & stats ---------- */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
  margin-bottom: 16px;
}
.grid2 { display: grid; grid-template-columns: 1fr 1.25fr; gap: 14px; align-items: start; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat { background: var(--bg2); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; }
.stat-label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
.stat-value { font-size: 24px; font-weight: 700; margin-top: 5px; }
.stat-sub { color: var(--muted); font-size: 12px; margin-top: 2px; }
.chart-wrap { height: 300px; padding-top: 8px; }

/* ---------- forms ---------- */
label { display: block; margin-bottom: 10px; color: var(--muted); font-size: 12.5px; }
input, select, textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 7px 10px;
  font: inherit;
  width: 100%;
}
textarea { resize: vertical; min-height: 64px; line-height: 1.5; }
input::placeholder, textarea::placeholder { color: #56637a; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 0 14px; margin-bottom: 6px; }

/* ---------- buttons / badges ---------- */
.btn {
  background: var(--bg3);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 14px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}
.btn:hover { border-color: #35455c; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn.primary { background: var(--accent); border-color: transparent; color: #fff; }
.btn.primary:hover { background: #3d7cf0; }
.btn.danger { background: transparent; border-color: rgba(224, 82, 82, 0.4); color: #f0938f; }
.btn.danger:hover { background: rgba(224, 82, 82, 0.12); }
.btn.small { padding: 4px 10px; font-size: 12px; }
.btn.wide { width: 100%; }

.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.2px;
}
.badge.ok { background: rgba(47, 191, 113, 0.15); color: var(--ok); }
.badge.muted { background: rgba(139, 152, 171, 0.15); color: var(--muted); }
.badge.warn { background: rgba(224, 168, 50, 0.15); color: var(--warn); }
.badge.err { background: rgba(224, 82, 82, 0.15); color: #f0938f; }

/* ---------- tables ---------- */
.table { width: 100%; border-collapse: collapse; margin-top: 6px; }
.table th {
  color: var(--muted);
  font-size: 11px;
  text-align: left;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 6px 8px;
}
.table td { padding: 9px 8px; border-top: 1px solid var(--border); vertical-align: middle; }
.table tr.clickable { cursor: pointer; }
.table tr.clickable:hover td { background: rgba(255, 255, 255, 0.02); }
.table .num { text-align: right; }

/* ---------- misc ---------- */
.row { display: flex; gap: 10px; align-items: center; }
.row.between { justify-content: space-between; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.banner { border-radius: 8px; padding: 9px 12px; font-size: 13px; margin: 10px 0; }
.banner.err { background: rgba(224, 82, 82, 0.12); color: #f0938f; border: 1px solid rgba(224, 82, 82, 0.35); }
.banner.ok { background: rgba(47, 191, 113, 0.1); color: #7bd8a5; border: 1px solid rgba(47, 191, 113, 0.3); }
.banner.warn { background: rgba(224, 168, 50, 0.1); color: #e6c075; border: 1px solid rgba(224, 168, 50, 0.35); }
.keybox {
  display: flex;
  gap: 10px;
  align-items: center;
  background: var(--bg);
  border: 1px dashed var(--accent);
  border-radius: 8px;
  padding: 10px;
  margin: 10px 0;
}
.keybox code { flex: 1; word-break: break-all; font-size: 12px; color: #bcd0f5; }
.boot, .boot-inline {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  color: var(--muted);
}

/* ---------- login ---------- */
.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 20px; }
.login-card {
  width: 350px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 30px 28px;
}
.login-card h1 { font-size: 18px; margin: 14px 0 18px; }
.login-card .btn { margin-top: 6px; }

/* ---------- support ticket thread ---------- */
.t-thread { display: flex; flex-direction: column; gap: 10px; margin: 12px 0; }
.t-msg {
  border: 1px solid var(--border);
  border-left: 3px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  background: var(--bg);
}
.t-msg-admin { border-left-color: var(--accent); }
.t-msg-user  { border-left-color: var(--muted); background: var(--bg2); }
.t-msg-meta {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 5px;
}
.t-msg-meta b { color: var(--text); font-weight: 600; }
.t-msg-meta span { margin-left: auto; }
.t-msg-body {
  white-space: pre-wrap;
  font-size: 13px;
  line-height: 1.55;
}

@media (max-width: 940px) {
  .grid2 { grid-template-columns: 1fr; }
  .main { padding: 18px 16px 30px; }
  .sidebar { width: 72px; padding: 16px 8px; }
  .sidebar nav a { padding: 9px 6px; font-size: 11px; }
  .brand span, .side-foot .txt { display: none; }
}