/* ===== PayNXT app panels (admin / merchant / referrer) ===== */
:root {
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e6e8ef;
  --bg: #f4f5fb;
  --primary: #4f46e5;
  --primary-d: #4338ca;
  --violet: #7c3aed;
  --green: #10b981;
  --radius: 14px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, Helvetica, Arial, sans-serif;
}
* { box-sizing: border-box; }
body {
  font-family: var(--font);
  margin: 0;
  padding: 0 16px 48px;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 26px; letter-spacing: -.02em; margin: 22px auto 4px; max-width: 1040px; }
h2 { margin-top: 0; font-size: 17px; }
h3 { font-size: 15px; color: #334155; margin: 18px 0 8px; }

main { max-width: 1040px; margin: 0 auto; }

/* Sections become cards */
section, main > .card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin: 16px auto;
  box-shadow: 0 1px 2px rgba(15,23,42,.04);
}

/* Top nav */
.topnav {
  max-width: 1040px; margin: 14px auto 6px;
  display: flex; align-items: center; gap: 18px;
  padding: 10px 18px; background: #fff;
  border: 1px solid var(--line); border-radius: 14px;
  box-shadow: 0 1px 2px rgba(15,23,42,.04);
}
.topnav .brand { font-weight: 800; font-size: 18px; letter-spacing: -.02em; color: var(--ink); }
.topnav .brand b { color: var(--primary); }
.topnav .links { display: flex; gap: 6px; flex: 1; flex-wrap: wrap; }
.topnav .links a { color: var(--muted); font-size: 14px; font-weight: 500; padding: 6px 10px; border-radius: 8px; text-decoration: none; }
.topnav .links a:hover { background: #f1f2f9; color: var(--ink); }
.topnav .links a.active { background: #eef2ff; color: var(--primary); }
.topnav .logout { margin: 0; }
.topnav .logout button { background: #f1f2f9; color: #475569; padding: 7px 12px; font-size: 13px; border: 0; border-radius: 8px; }
.topnav .logout button:hover { background: #e6e8f2; }

/* Stat cards */
.cards { display: flex; gap: 14px; flex-wrap: wrap; margin: 4px 0 0; }
.cards .card {
  flex: 1; min-width: 150px; margin: 0;
  background: linear-gradient(180deg,#fbfbff,#f5f6ff);
  border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px;
  display: flex; flex-direction: column; gap: 2px; box-shadow: none;
}
.cards .num { font-size: 26px; font-weight: 800; color: var(--primary); letter-spacing: -.02em; }
.cards .lbl { font-size: 13px; color: var(--muted); }

/* Tables */
table.grid { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.grid th, table.grid td { text-align: left; padding: 10px 12px; border-bottom: 1px solid #eef0f6; }
table.grid thead th { color: #94a3b8; font-weight: 600; text-transform: uppercase; font-size: 11px; letter-spacing: .5px; border-bottom: 1px solid var(--line); }
table.grid tbody tr:hover { background: #fafbff; }
table.grid tbody tr:last-child td { border-bottom: 0; }
table.grid a { color: var(--primary); font-weight: 500; }

/* Forms */
form.stacked, .auth-card form { display: flex; flex-direction: column; gap: 14px; max-width: 460px; }
label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: #475569; font-weight: 500; }
input, select { padding: 10px 12px; border: 1px solid #d6d9e6; border-radius: 9px; font-size: 14px; font-family: inherit; background: #fff; color: var(--ink); width: 100%; }
input:focus, select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,70,229,.15); }
input[readonly] { background: #f8fafc; }

/* Buttons */
button, a.btn, .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 16px; background: var(--primary); color: #fff; border: 0;
  border-radius: 9px; font-size: 14px; font-weight: 600; font-family: inherit; cursor: pointer; text-decoration: none;
  transition: background .15s, transform .05s;
}
button:hover, a.btn:hover, .btn:hover { background: var(--primary-d); text-decoration: none; }
button:active { transform: translateY(1px); }
button.btn-danger, .btn-danger { background: #dc2626; }
button.btn-danger:hover, .btn-danger:hover { background: #b91c1c; }
button.linklike, .linklike { background: transparent; color: var(--primary); padding: 0; font-size: 13px; font-weight: 500; }
button.linklike:hover, .linklike:hover { background: transparent; text-decoration: underline; }

/* Status pills */
.badge-pill { display: inline-block; font-size: 11.5px; font-weight: 600; padding: 3px 10px; border-radius: 999px; background: #f1f5f9; color: #475569; border: 1px solid #e2e8f0; }
.badge-pill.live { background: #ecfdf5; color: #15803d; border-color: #a7f3d0; }
.badge-pill.warn { background: #fffbeb; color: #b45309; border-color: #fde68a; }
.badge-pill.danger { background: #fef2f2; color: #b91c1c; border-color: #fecaca; }

/* Helpers */
.muted { color: var(--muted); font-size: 13px; }
.error { background: #fef2f2; color: #b91c1c; padding: 10px 14px; border-radius: 10px; font-size: 13.5px; margin: 0 auto 12px; max-width: 1040px; border: 1px solid #fecaca; }
.success { background: #ecfdf5; color: #15803d; padding: 10px 14px; border-radius: 10px; font-size: 13.5px; margin: 0 auto 12px; max-width: 1040px; border: 1px solid #a7f3d0; }
code { background: #eef2ff; color: #4338ca; padding: 2px 7px; border-radius: 5px; font-size: 12.5px; }
pre.secret { background: #0f172a; color: #a5f3fc; padding: 12px 14px; border-radius: 10px; font-size: 13px; overflow-x: auto; user-select: all; }

/* Auth pages (login / signup / OTP / checkout / return) */
.auth-card {
  max-width: 400px; margin: 7vh auto; background: #fff;
  border: 1px solid var(--line); border-radius: 18px; padding: 30px 28px;
  box-shadow: 0 12px 40px rgba(15,23,42,.08);
}
.auth-card h1 { font-size: 20px; color: var(--primary); margin: 0 0 4px; }
.auth-card h2 { font-size: 16px; font-weight: 600; color: #334155; margin: 0 0 14px; }
.auth-brand { display: inline-block; font-size: 22px; font-weight: 800; letter-spacing: -.02em; color: var(--ink); text-decoration: none; margin-bottom: 8px; }
.auth-brand b { color: var(--primary); }
.auth-card button { width: 100%; padding: 11px; }
.auth-card .muted { text-align: center; margin-top: 14px; }
.resend { margin-top: 8px; max-width: 460px; }
.auth-card input[name="otp"] { letter-spacing: .4em; text-align: center; font-size: 20px; font-weight: 600; }

/* Mobile */
@media (max-width: 720px) {
  h1 { font-size: 22px; }
  .topnav { flex-wrap: wrap; gap: 10px; }
  .topnav .links { order: 3; flex-basis: 100%; overflow-x: auto; }
  .cards { flex-direction: column; }
  section { padding: 16px; }
  table.grid { display: block; overflow-x: auto; white-space: nowrap; }
  form.stacked, .auth-card form { max-width: 100%; }
  .auth-card { margin: 4vh auto; padding: 24px 18px; }
}