*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --black: #111111;
  --gray-900: #1a1a1a;
  --gray-700: #444;
  --gray-500: #888;
  --gray-300: #ccc;
  --gray-100: #f5f5f5;
  --white: #ffffff;
  --border: #e0e0e0;
  --radius: 8px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

html, body {
  font-family: var(--font);
  background: var(--gray-100);
  color: var(--black);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

/* ── Auth page ─────────────────────────────────────────────── */
.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: #f0f0f0;
}

.auth-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 48px 40px 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 2px 16px rgba(0,0,0,.06);
}

.auth-logo { display: none; }
.auth-title { font-size: 22px; font-weight: 700; margin-bottom: 32px; text-align: left; letter-spacing: -0.3px; }

/* ── Topbar ─────────────────────────────────────────────────── */
.topbar {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 52px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.topbar-logo { font-size: 16px; font-weight: 700; }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.topbar-user { color: var(--gray-700); font-size: 13px; }
.admin-badge {
  display: inline-block;
  background: var(--black);
  color: var(--white);
  font-size: 10px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 6px;
  vertical-align: middle;
}

/* ── Layout ─────────────────────────────────────────────────── */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.section-divider { height: 1px; background: var(--border); margin: 20px 0; }

/* ── Stats grid ─────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.stat-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.stat-label { font-size: 12px; color: var(--gray-500); margin-bottom: 6px; }
.stat-value { font-size: 18px; font-weight: 600; }
.stat-muted { color: var(--gray-500); font-size: 15px; }

/* ── Card ────────────────────────────────────────────────────── */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 20px;
  overflow: hidden;
}

.card-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--gray-100);
}

.card-header h3 { font-size: 14px; font-weight: 600; }

/* ── Forms ───────────────────────────────────────────────────── */
.form-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  padding: 16px 20px;
  align-items: flex-end;
}

.form-group { display: flex; flex-direction: column; gap: 6px; flex: 1; min-width: 160px; }
.form-group-btn { flex: 0; min-width: auto; }

/* Auth form larger gaps */
.auth-card .form-group { margin-bottom: 20px; }
.auth-card .form-group:last-of-type { margin-bottom: 28px; }

label { font-size: 12px; font-weight: 500; color: var(--gray-700); }

input[type="text"],
input[type="password"],
input[type="number"],
input[type="email"] {
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  font-family: var(--font);
  width: 100%;
  background: var(--white);
  transition: border-color .15s;
  color: var(--black);
}

input:focus {
  outline: none;
  border-color: var(--black);
}

.form-hint { font-size: 11px; color: var(--gray-500); }

.input-sm {
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
  width: 110px;
  background: var(--white);
}
.input-sm:focus { outline: none; border-color: var(--black); }

.inline-form { display: flex; gap: 6px; align-items: center; }
.agent-form .form-row { flex-wrap: wrap; }

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 18px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  font-family: var(--font);
  transition: opacity .15s;
  white-space: nowrap;
}
.btn:hover { opacity: .85; }
.btn:active { opacity: .7; }

.btn-primary { background: var(--black); color: var(--white); }
.btn-full { width: 100%; }

.btn-sm {
  padding: 6px 10px;
  font-size: 13px;
  border-radius: 5px;
  background: var(--black);
  color: var(--white);
  cursor: pointer;
  border: none;
  font-family: var(--font);
}
.btn-sm:hover { opacity: .8; }

.btn-outline {
  background: transparent;
  border: 1px solid var(--gray-300);
  color: var(--gray-700);
}
.btn-outline:hover { border-color: var(--black); color: var(--black); }

.btn-logout {
  background: none;
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: 5px;
  font-size: 13px;
  cursor: pointer;
  font-family: var(--font);
  color: var(--gray-700);
}
.btn-logout:hover { border-color: var(--gray-700); color: var(--black); }

/* ── Alerts ──────────────────────────────────────────────────── */
.alert {
  padding: 10px 16px;
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 13px;
}
.alert-error { background: #fef2f2; border: 1px solid #fecaca; color: #b91c1c; }
.alert-success { background: #f0fdf4; border: 1px solid #bbf7d0; color: #166534; }

/* ── Table ───────────────────────────────────────────────────── */
.tx-table-wrap { overflow-x: auto; }

.tx-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.tx-table th {
  text-align: left;
  padding: 10px 16px;
  font-size: 11px;
  font-weight: 600;
  color: var(--gray-500);
  border-bottom: 1px solid var(--border);
  text-transform: uppercase;
  letter-spacing: .5px;
  white-space: nowrap;
}

.tx-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.tx-table tr:last-child td { border-bottom: none; }
.tx-table tr:hover td { background: #fafafa; }

.row-disabled td { opacity: 0.5; }

.tx-date { color: var(--gray-500); white-space: nowrap; }
.tx-card { font-variant-numeric: tabular-nums; }
.tx-amount { font-weight: 600; white-space: nowrap; }
.tx-id { color: var(--gray-500); }
.mono { font-family: 'SF Mono', 'Fira Code', monospace; font-size: 12px; }

/* ── Badges ──────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .3px;
  white-space: nowrap;
}
.badge-pending   { background: #fef9c3; color: #854d0e; }
.badge-processing { background: #dbeafe; color: #1d4ed8; }
.badge-success   { background: #dcfce7; color: #166534; }
.badge-failed    { background: #fee2e2; color: #991b1b; }

.empty-state {
  padding: 32px;
  text-align: center;
  color: var(--gray-500);
  font-size: 13px;
}

/* ── Admin table tweaks ──────────────────────────────────────── */
.admin-table th, .admin-table td { padding: 10px 12px; }

/* ── Hide number input spinners ─────────────────────────────── */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
input[type="number"] { -moz-appearance: textfield; }

/* ── Topbar rate ─────────────────────────────────────────────── */
.topbar-rate { font-size: 13px; color: var(--gray-700); }
.topbar-rate strong { color: var(--black); }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 600px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .form-row { flex-direction: column; }
  .auth-card { margin: 16px; padding: 28px 20px; }
  .container { padding: 16px 12px 32px; }
}