:root {
  --bg: #101418;
  --ink: #f4f7f8;
  --muted: #b7c2c8;
  --green: #1b7f3a;
  --green-dark: #145c2a;
  --blue: #1c4f8a;
  --blue-dark: #163c68;
  --red: #b42318;
  --yellow: #c9a227;
  --panel: #1c242c;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
}

.door-body {
  min-height: 100vh;
  padding-bottom: 24px;
}

.door-top {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: baseline;
  padding: 10px 14px;
  background: #0b0f12;
  font-size: 1.05rem;
}

.door-top span, .door-user, .tiny {
  color: var(--muted);
  text-decoration: none;
}

.train-flag {
  background: var(--yellow);
  color: #1a1408 !important;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.85rem;
}

.tiny { font-size: 0.95rem; }

.totals-strip {
  display: flex;
  gap: 18px;
  padding: 10px 14px;
  background: #162028;
  font-size: 1.15rem;
  font-weight: 700;
}

.door-screen {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px 14px 40px;
}

.door-title {
  font-size: 2.2rem;
  margin: 12px 0 8px;
  text-align: center;
}

.door-help {
  font-size: 1.35rem;
  text-align: center;
  color: var(--muted);
  margin: 8px 0 18px;
}

.door-foot { text-align: center; margin-top: 24px; }
.door-foot a { color: var(--muted); }

.flash {
  margin: 10px 14px;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 1.15rem;
  background: #3a2a12;
}
.flash.ok { background: #1b3a24; }
.flash.error { background: #4a1b18; }

.huge-btn, .huge, .choice, .pad-key, .undo-btn, .secondary-btn {
  display: block;
  width: 100%;
  border: 0;
  border-radius: 18px;
  color: #fff;
  text-decoration: none;
  text-align: center;
  font-weight: 800;
  cursor: pointer;
}

.huge-btn {
  padding: 42px 16px;
  font-size: 2.1rem;
  margin: 0 0 16px;
}

.huge-btn.checkin { background: var(--green); }
.huge-btn.sell { background: var(--blue); }

.huge, .primary {
  background: var(--green);
  padding: 22px 16px;
  font-size: 1.6rem;
  margin-top: 12px;
}

.undo-btn, .secondary-btn, .back {
  background: #2a343c;
  color: #fff;
  padding: 16px;
  font-size: 1.2rem;
  margin-top: 18px;
  border-radius: 12px;
  text-decoration: none;
  display: inline-block;
}

.back { margin-bottom: 8px; }

.pin-input, .scan-input, .staff-form input {
  width: 100%;
  font-size: 2rem;
  text-align: center;
  padding: 16px;
  border-radius: 12px;
  border: 3px solid #3a4a55;
  background: #0b0f12;
  color: #fff;
  letter-spacing: 0.3em;
}

.scan-input { letter-spacing: normal; text-align: left; font-size: 1.6rem; }

.pad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 14px;
}

.pad-key {
  min-height: 72px;
  font-size: 1.8rem;
  background: #2a343c;
}

.pad-key.go { background: var(--green); }

.choice-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 560px) {
  .choice-grid { grid-template-columns: 1fr 1fr; }
}

.choice {
  min-height: 88px;
  background: #243039;
  font-size: 1.5rem;
  padding: 18px;
}

.choice strong { display: block; font-size: 1.7rem; }
.type-choice { background: var(--blue); }
.pay-choice { background: #5a3d12; }

.match-list button {
  width: 100%;
  margin: 8px 0;
  padding: 18px;
  font-size: 1.35rem;
  border-radius: 12px;
  border: 0;
  background: #243039;
  color: #fff;
  text-align: left;
}

.hidden { display: none !important; }

.overlay {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
  z-index: 20;
  color: #fff;
}

.overlay.ok { background: var(--green); }
.overlay.reuse, .overlay.error { background: var(--red); }
.overlay.not_found { background: var(--yellow); color: #1a1408; }
.overlay.done { background: var(--green); }
.overlay.undone { background: #2a343c; }

.overlay h2 { font-size: 3rem; margin: 0 0 12px; }
.overlay p { font-size: 1.6rem; margin: 0; }
.overlay button {
  margin-top: 24px;
  font-size: 1.4rem;
  padding: 16px 28px;
  border: 0;
  border-radius: 12px;
  background: #fff;
  color: #111;
  font-weight: 800;
}

.staff-form label {
  display: block;
  margin: 12px 0;
  font-size: 1.1rem;
}

.queued-flag {
  position: fixed;
  bottom: 8px;
  right: 8px;
  background: var(--yellow);
  color: #1a1408;
  padding: 8px 12px;
  border-radius: 8px;
  font-weight: 700;
}