:root {
  --bg: #0b0e14;
  --bg-2: #10141c;
  --bg-3: #161b26;
  --border: #232a38;
  --fg: #e6e9f0;
  --dim: #8b93a7;
  --accent: #5b8cff;
  --accent-2: #7aa2ff;
  --green: #35c46f;
  --red: #ef4444;
  --amber: #f59e0b;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.hidden { display: none !important; }

.btn {
  border: 1px solid var(--border);
  background: var(--bg-3);
  color: var(--fg);
  border-radius: 8px;
  padding: 8px 14px;
  font: inherit;
  cursor: pointer;
}
.btn:hover { border-color: var(--accent); }
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}
.btn.primary:hover { background: var(--accent-2); }
.btn.danger { border-color: var(--red); color: var(--red); background: transparent; }
.btn.danger:hover { background: rgba(239, 68, 68, 0.12); }
.btn.ins-on { border-color: rgba(53, 196, 111, 0.55); color: #6ee7a0; background: rgba(53, 196, 111, 0.12); }
.btn.ghost { background: transparent; }
.btn.block { width: 100%; }
.btn.big { padding: 10px 18px; font-size: 15px; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

/* ---------- login ---------- */
.auth-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  min-height: 100dvh;
  padding: 20px;
  background:
    radial-gradient(1000px 500px at 20% -10%, rgba(91, 140, 255, 0.14), transparent 60%),
    radial-gradient(800px 400px at 110% 110%, rgba(53, 196, 111, 0.08), transparent 60%),
    var(--bg);
}
.auth-card {
  width: 100%;
  max-width: 380px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 30px 28px 26px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  text-align: center;
}
.auth-logo {
  font-size: 34px;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
}
.auth-card h1 {
  margin: 0 0 4px;
  font-size: 22px;
  letter-spacing: 0.3px;
}
.auth-sub {
  margin: 0 0 20px;
  color: var(--dim);
  font-size: 13.5px;
}
.auth-label {
  display: block;
  text-align: left;
  font-size: 13px;
  color: var(--dim);
  margin-bottom: 14px;
}
.auth-label input {
  display: block;
  width: 100%;
  margin-top: 6px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  color: var(--fg);
  border-radius: 8px;
  padding: 10px 12px;
  font: inherit;
  outline: none;
}
.auth-label input:focus { border-color: var(--accent); }
.auth-error {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #fca5a5;
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 13px;
  margin-bottom: 12px;
}
.auth-ok {
  background: rgba(53, 196, 111, 0.12);
  border: 1px solid rgba(53, 196, 111, 0.4);
  color: #86efac;
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 13px;
  margin-bottom: 12px;
}

/* ---------- admin panel ---------- */
.admin-body { min-height: 100vh; min-height: 100dvh; background: var(--bg); }
.admin-top {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 22px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 5;
}
.admin-top .brand {
  font-weight: 700;
  font-size: 17px;
}
.admin-top .brand .logo { color: var(--accent); }
.admin-top .spacer { flex: 1; }
.admin-top .who { color: var(--dim); font-size: 13.5px; }
.admin-main {
  max-width: 980px;
  margin: 0 auto;
  padding: 26px 22px 60px;
}
.admin-main h2 {
  margin: 0 0 4px;
  font-size: 19px;
}
.admin-sub { color: var(--dim); font-size: 13.5px; margin: 0 0 20px; }
.panel {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  margin-bottom: 22px;
}
.panel h3 { margin: 0 0 14px; font-size: 15px; }
.form-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: flex-end;
}
.form-row label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 12.5px;
  color: var(--dim);
  flex: 1;
  min-width: 160px;
}
.form-row input, .form-row select {
  background: var(--bg-3);
  border: 1px solid var(--border);
  color: var(--fg);
  border-radius: 8px;
  padding: 9px 11px;
  font: inherit;
  outline: none;
}
.form-row input:focus, .form-row select:focus { border-color: var(--accent); }
.form-row input[readonly] { color: var(--dim); cursor: default; }
.check-inline {
  display: flex !important;
  flex-direction: row !important;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto !important;
  min-width: 0 !important;
  margin-bottom: 2px;
  white-space: nowrap;
  cursor: pointer;
}
.check-inline input { width: 16px; height: 16px; margin: 0; accent-color: var(--accent); }
table.users {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
table.users th, table.users td {
  text-align: left;
  padding: 10px 10px;
  border-bottom: 1px solid var(--border);
}
table.users th { color: var(--dim); font-weight: 600; font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.4px; }
table.users tr:last-child td { border-bottom: none; }
.tag {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid var(--border);
  background: var(--bg-3);
  color: var(--dim);
}
.tag.admin { color: var(--accent-2); border-color: rgba(91, 140, 255, 0.5); background: rgba(91, 140, 255, 0.12); }
.row-actions { display: flex; gap: 8px; justify-content: flex-end; }
.empty { color: var(--dim); font-size: 14px; padding: 8px 0; }

#toasts {
  position: fixed;
  right: 16px;
  bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 50;
}
.toast {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13.5px;
  max-width: 340px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}
.toast.error { border-left-color: var(--red); }
.toast.ok { border-left-color: var(--green); }

@media (max-width: 640px) {
  .admin-top { flex-wrap: wrap; }
  .form-row label { min-width: 100%; }
  table.users th:nth-child(3), table.users td:nth-child(3) { display: none; }
}