:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --panel2: #273449;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --green: #22c55e;
  --orange: #f59e0b;
  --yellow: #facc15;
  --red: #ef4444;
  --blue: #3b82f6;
  --line: #334155;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}
.hidden { display: none !important; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--blue);
  color: #fff;
  border: 0;
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 15px;
  cursor: pointer;
  text-decoration: none;
}
.btn.ghost { background: transparent; border: 1px solid var(--line); color: var(--text); }
.btn.big { width: 100%; justify-content: center; padding: 16px; font-size: 18px; margin-top: 6px; }
.btn:active { transform: translateY(1px); }

/* ---------------- Staff dashboard ---------------- */
.topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand h1 { font-size: 20px; margin: 0; }
.conn { font-size: 12px; padding: 2px 8px; border-radius: 999px; }
.conn.on { background: rgba(34, 197, 94, 0.15); color: var(--green); }
.conn.off { background: rgba(239, 68, 68, 0.15); color: var(--red); }
.stats { display: flex; gap: 18px; margin-left: auto; }
.stat { display: flex; flex-direction: column; align-items: center; min-width: 60px; }
.stat span { font-size: 24px; font-weight: 700; line-height: 1; }
.stat label { font-size: 11px; color: var(--muted); margin-top: 2px; }
.stat.warn span { color: var(--orange); }
.stat.suspect span { color: var(--yellow); }
.actions { display: flex; gap: 8px; }

.fairbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 20px;
  background: var(--panel2);
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}
.fair-pick { display: flex; align-items: center; gap: 10px; }
.fair-pick label { color: var(--muted); font-size: 13px; }
#fair-select {
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 14px;
  max-width: 320px;
}
.fair-actions { display: flex; gap: 8px; margin-left: auto; flex-wrap: wrap; }
.fair-actions .btn { padding: 8px 12px; font-size: 14px; }

.layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 20px;
  padding: 20px;
  align-items: start;
}
.qr-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  text-align: center;
  position: sticky;
  top: 20px;
}
.qr-card h2 { margin: 0 0 12px; font-size: 16px; }
.qr-card img { width: 100%; max-width: 260px; background: #fff; border-radius: 12px; padding: 10px; }
.qr-card code { display: block; margin-top: 10px; font-size: 12px; color: var(--muted); word-break: break-all; }
.qr-card .hint { font-size: 13px; color: var(--muted); margin-bottom: 0; }

.feed-head { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.feed-head h2 { margin: 0; font-size: 16px; }
#search {
  margin-left: auto;
  background: var(--panel2);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 10px;
  width: 300px;
  max-width: 50%;
  font-size: 14px;
}
.list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.empty { color: var(--muted); text-align: center; padding: 40px 0; }

.card-item {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 5px solid var(--green);
  border-radius: 12px;
  padding: 14px 16px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.card-item.dup_company { border-left-color: var(--orange); background: rgba(245, 158, 11, 0.07); }
.card-item.dup_person { border-left-color: var(--red); background: rgba(239, 68, 68, 0.08); }
.card-item.suspect { border-left-color: var(--yellow); background: rgba(250, 204, 21, 0.06); }
.card-item.gifted { opacity: 0.65; }
.ci-main { flex: 1; min-width: 0; }
.ci-top { display: flex; align-items: center; gap: 8px; }
.ci-name { font-size: 17px; }
.ci-time { margin-left: auto; color: var(--muted); font-size: 13px; }
.ci-company { font-weight: 600; color: #cbd5e1; margin-top: 3px; }
.ci-contact { color: var(--muted); font-size: 14px; margin-top: 2px; word-break: break-word; }

.badge { font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 999px; text-transform: uppercase; }
.badge.green { background: rgba(34, 197, 94, 0.2); color: var(--green); }
.badge.orange { background: rgba(245, 158, 11, 0.2); color: var(--orange); }
.badge.red { background: rgba(239, 68, 68, 0.2); color: var(--red); }
.badge.yellow { background: rgba(250, 204, 21, 0.2); color: var(--yellow); }

.warn-note {
  margin-top: 10px;
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fecaca;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 14px;
  line-height: 1.4;
}
.card-item.dup_company .warn-note {
  background: rgba(245, 158, 11, 0.12);
  border-color: rgba(245, 158, 11, 0.3);
  color: #fde68a;
}
.card-item.suspect .warn-note {
  background: rgba(250, 204, 21, 0.1);
  border-color: rgba(250, 204, 21, 0.3);
  color: #fef08a;
}

.gift-btn {
  align-self: center;
  white-space: nowrap;
  background: var(--panel2);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
  font-size: 13px;
}
.gift-btn.on { background: rgba(34, 197, 94, 0.2); color: var(--green); border-color: transparent; }

@keyframes flash {
  0% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.7); }
  100% { box-shadow: 0 0 0 16px rgba(59, 130, 246, 0); }
}
.card-item.flash { animation: flash 1.2s ease-out; }

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.88);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
}
.overlay-inner { background: #fff; padding: 24px; border-radius: 20px; text-align: center; color: #111; }
.overlay-inner img { width: min(70vw, 70vh); height: auto; display: block; }
.overlay-inner code { display: block; margin: 12px 0; color: #444; word-break: break-all; }

/* ---------------- Guest form ---------------- */
body.guest { display: flex; align-items: flex-start; justify-content: center; min-height: 100vh; padding: 20px; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px;
  width: 100%;
  max-width: 440px;
  margin-top: 5vh;
}
.card h1 { font-size: 24px; margin: 0 0 6px; }
.card .sub { color: var(--muted); margin: 0 0 18px; }
#form label { display: block; font-size: 14px; color: var(--muted); margin-bottom: 14px; }
#form input {
  display: block;
  width: 100%;
  margin-top: 6px;
  background: var(--panel2);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 13px;
  border-radius: 10px;
  font-size: 16px; /* >=16px avoids iOS zoom on focus */
}
#form input:focus { outline: 2px solid var(--blue); border-color: transparent; }
.err { color: var(--red); min-height: 18px; margin: 8px 0 0; }
.done { text-align: center; }
.done .check {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-size: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
}

@media (max-width: 760px) {
  .layout { grid-template-columns: 1fr; }
  .qr-card { position: static; }
  .stats { order: 3; margin-left: 0; }
  #search { max-width: 100%; width: 100%; }
}