:root {
  --ink: #0b1220;
  --charcoal: #1f2937;
  --brand: #4f46e5;
  --magenta: #ec4899;
  --line: #e5e7eb;
  --muted: #64748b;
  --bg: #eef1f8;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, Arial, sans-serif;
  background: var(--bg);
  color: #0f172a;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--brand); text-decoration: none; }
.topbar {
  background: linear-gradient(180deg, #0b1220, #141d3d);
  color: #fff;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { font-weight: 800; font-size: 18px; letter-spacing: 0.5px; }
.brand span { color: #f59e0b; }
.brand small { display: block; font-size: 10px; color: #94a3b8; font-weight: 400; letter-spacing: 0; }
.logo-chip { background: #fff; border-radius: 8px; padding: 4px 10px; display: inline-flex; }
.logo-chip img { height: 30px; display: block; }
.nav a { color: #cbd5e1; margin-left: 18px; font-size: 14px; }
.nav a:hover, .nav a.active { color: #fff; }
.nav form { display: inline; }
.nav button.link { background: none; border: none; color: #cbd5e1; cursor: pointer; margin-left: 18px; font-size: 14px; }
.wrap { max-width: 960px; margin: 24px auto; padding: 0 16px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 1px 3px rgba(15,23,42,.06); padding: 18px; margin-bottom: 16px; }
h1 { font-size: 22px; color: var(--charcoal); margin: 0 0 4px; }
h2 { font-size: 16px; color: var(--charcoal); margin: 0 0 10px; }
.accent { height: 4px; width: 44px; border-radius: 3px; background: linear-gradient(135deg,#4f46e5,#7c3aed 55%,#ec4899); margin-bottom: 14px; }
label { display: block; font-size: 12px; font-weight: 600; color: var(--muted); margin: 8px 0 4px; text-transform: uppercase; letter-spacing: .04em; }
input, select { width: 100%; padding: 9px 11px; border: 1px solid #cbd5e1; border-radius: 8px; font-size: 14px; }
.btn { display: inline-flex; align-items: center; gap: 6px; border: none; border-radius: 8px; padding: 10px 16px; font-size: 14px; font-weight: 600; cursor: pointer; }
.btn-primary { background: var(--charcoal); color: #fff; }
.btn-brand { background: linear-gradient(135deg,#4f46e5,#7c3aed 55%,#ec4899); color: #fff; }
.btn-green { background: #16a34a; color: #fff; }
.btn-ghost { background: #fff; border: 1px solid #cbd5e1; color: #334155; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); padding: 8px; border-bottom: 1px solid var(--line); }
td { padding: 8px; border-bottom: 1px solid #f1f5f9; font-size: 14px; }
.pill { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; border: 1px solid; }
.pill.green { background:#dcfce7; color:#15803d; border-color:#86efac; }
.pill.amber { background:#fef9c3; color:#a16207; border-color:#fde68a; }
.pill.slate { background:#f1f5f9; color:#475569; border-color:#cbd5e1; }
.pill.red { background:#fee2e2; color:#b91c1c; border-color:#fca5a5; }
.pill.indigo { background:#e0e7ff; color:#4338ca; border-color:#c7d2fe; }
.big { font-size: 34px; font-weight: 800; color: var(--charcoal); }
.muted { color: var(--muted); font-size: 13px; }
.grid { display: grid; gap: 16px; }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.center { text-align: center; }
.countdown { font-size: 40px; font-weight: 800; letter-spacing: 2px; color: var(--brand); }
.alert { padding: 10px 14px; border-radius: 8px; font-size: 14px; margin-bottom: 12px; }
.alert.err { background:#fee2e2; color:#b91c1c; }
.alert.ok { background:#dcfce7; color:#15803d; }
@media (max-width: 700px) { .grid.cols-3, .grid.cols-2 { grid-template-columns: 1fr; } }

/* Early-checkout modal */
.modal-overlay { position: fixed; inset: 0; background: rgba(15,23,42,.5); display: none; align-items: center; justify-content: center; z-index: 50; padding: 16px; }
.modal-overlay.open { display: flex; }
.modal-box { background: #fff; border-radius: 14px; padding: 22px; max-width: 440px; width: 100%; text-align: left; box-shadow: 0 20px 50px rgba(15,23,42,.3); }
.modal-box h3 { margin: 0 0 6px; color: var(--charcoal); }
.modal-box .warn { background: var(--warn-bg, #fdf4e3); color: var(--warn-ink, #8a5a00); border-radius: 8px; padding: 10px 12px; font-size: 13px; margin-bottom: 14px; }
.modal-box label.chk { display: flex; align-items: center; gap: 8px; font-size: 14px; color: #334155; text-transform: none; letter-spacing: 0; margin: 6px 0 12px; cursor: pointer; }
.modal-box textarea { width: 100%; min-height: 70px; padding: 9px 11px; border: 1px solid #cbd5e1; border-radius: 8px; font-family: inherit; font-size: 14px; }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 14px; }
.device-warn { display: none; background: #fee2e2; color: #b91c1c; border: 1px solid #fca5a5; border-radius: 10px; padding: 16px; font-size: 14px; }
.warn-bg { background: #fdf4e3; }