:root {
  --crimson: #9e1b32;      /* roll tide */
  --dark: #1a1a1a;
  --gray: #6b7280;
  --bg: #f5f5f4;
  --card: #ffffff;
  --green: #16a34a;
  --red: #dc2626;
  --amber: #d97706;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--dark); }
a { color: var(--crimson); }
nav { background: var(--crimson); color: #fff; display: flex; align-items: center; gap: 1rem; padding: .6rem 1rem; flex-wrap: wrap; }
nav a { color: #fff; text-decoration: none; font-weight: 600; padding: .3rem .5rem; border-radius: 6px; }
nav a:hover, nav a.active { background: rgba(255,255,255,.18); }
nav .brand { font-weight: 800; letter-spacing: .5px; }
nav .spacer { flex: 1; }
main { max-width: 900px; margin: 0 auto; padding: 1rem; }
.card { background: var(--card); border-radius: 12px; padding: 1rem; margin-bottom: 1rem; box-shadow: 0 1px 3px rgba(0,0,0,.08); }
h1 { font-size: 1.35rem; } h2 { font-size: 1.1rem; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: .6rem; }
.stat { background: var(--card); border-radius: 12px; padding: .7rem; text-align: center; box-shadow: 0 1px 3px rgba(0,0,0,.08); }
.stat .num { font-size: 1.9rem; font-weight: 800; }
.stat .lbl { color: var(--gray); font-size: .78rem; text-transform: uppercase; letter-spacing: .5px; }
.stat.green .num { color: var(--green); } .stat.amber .num { color: var(--amber); }
.stat.red .num { color: var(--red); } .stat.crimson .num { color: var(--crimson); }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .45rem .5rem; border-bottom: 1px solid #e5e7eb; font-size: .92rem; }
th { color: var(--gray); font-size: .75rem; text-transform: uppercase; }
button, .btn { background: var(--crimson); color: #fff; border: 0; border-radius: 8px; padding: .55rem 1rem; font-size: 1rem; font-weight: 600; cursor: pointer; text-decoration: none; display: inline-block; }
button.big { font-size: 1.3rem; padding: .9rem 1.4rem; width: 100%; }
button.secondary { background: #e5e7eb; color: var(--dark); }
input, select { padding: .55rem; border: 1px solid #d1d5db; border-radius: 8px; font-size: 1rem; width: 100%; }
form.inline { display: flex; gap: .5rem; flex-wrap: wrap; align-items: end; }
form.inline > div { flex: 1; min-width: 110px; }
label { font-size: .78rem; color: var(--gray); display: block; margin-bottom: .2rem; }
.result-ok, .result-bad { border-radius: 12px; padding: 1.4rem; text-align: center; color: #fff; margin: 1rem 0; }
.result-ok { background: var(--green); } .result-bad { background: var(--red); }
.result-ok .who, .result-bad .who { font-size: 1.6rem; font-weight: 800; }
.badge { font-size: .72rem; padding: .15rem .5rem; border-radius: 99px; background: #e5e7eb; }
.badge.green { background: #dcfce7; color: var(--green); }
.badge.red { background: #fee2e2; color: var(--red); }
.badge.amber { background: #fef3c7; color: var(--amber); }
.counter-row { display: flex; gap: .5rem; align-items: center; }
.counter-row form { margin: 0; }
.qr-wrap { text-align: center; }
.qr-wrap img { width: min(75vw, 320px); }
#reader { width: 100%; max-width: 480px; margin: 0 auto; }
.muted { color: var(--gray); font-size: .85rem; }