:root {
  --bg: #f4f6f9;
  --card: #fff;
  --text: #1e293b;
  --muted: #64748b;
  --accent: #0c4da2;
  --danger: #b91c1c;
  --wrap: 960px;
}

* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, sans-serif; color: var(--text); background: var(--bg); line-height: 1.5; }
.wrap { width: min(100% - 2rem, var(--wrap)); margin: 0 auto; }
a { color: var(--accent); }

.gate-pending #landing { display: none !important; }
#gate-loading { padding: 3rem; text-align: center; color: var(--muted); }

.top { background: #fff; border-bottom: 1px solid #e2e8f0; padding: 0.75rem 0; }
.top .wrap { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.top nav a { margin-left: 1rem; text-decoration: none; color: var(--text); }

.hero { padding: 2.5rem 0 1rem; }
.hero h1 { margin: 0 0 0.5rem; }
.footer { margin-top: 2rem; background: #1e293b; color: #cbd5e1; padding: 1.5rem 0; font-size: 0.9rem; }
.footer a { color: #e2e8f0; }
.small { font-size: 0.8rem; opacity: 0.85; }

.card { background: var(--card); border: 1px solid #e2e8f0; border-radius: 8px; padding: 1rem; margin: 1rem 0; }

.admin .wrap { padding: 2rem 0; }
.admin-head { display: flex; justify-content: space-between; align-items: center; }
.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin-top: 1rem; }
.span2 { grid-column: 1 / -1; }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
.form-grid .span2 { grid-column: 1 / -1; }
label { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.875rem; }
input, select, button, textarea { font: inherit; padding: 0.5rem 0.65rem; border-radius: 4px; border: 1px solid #cbd5e1; }
button { background: var(--accent); color: #fff; border: 0; cursor: pointer; }
button.danger { background: var(--danger); }
.err { color: var(--danger); font-size: 0.875rem; }
.toolbar { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; margin-bottom: 0.5rem; }
#visits-log { background: #0f172a; color: #e2e8f0; padding: 0.75rem; border-radius: 6px; overflow: auto; max-height: 320px; font-size: 0.75rem; }
#campaign-list { list-style: none; padding: 0; }
#campaign-list li { display: flex; justify-content: space-between; gap: 0.5rem; padding: 0.35rem 0; border-bottom: 1px solid #e2e8f0; font-size: 0.875rem; }

.content { padding: 2rem 0 3rem; }

@media (max-width: 720px) {
  .grid, .form-grid { grid-template-columns: 1fr; }
  .span2 { grid-column: auto; }
}