:root {
  --green: #1a5c3a;
  --green-dark: #124228;
  --orange: #f5a623;
  --bg: #f5f5f0;
  --card: #ffffff;
  --text: #222;
  --muted: #777;
  --danger: #c0392b;
  --due: #c0392b;
  --paid: #1a5c3a;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, Roboto, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}
#app { min-height: 100vh; display: flex; flex-direction: column; }

.topbar {
  background: var(--green);
  color: #fff;
  padding: 14px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar h1 { font-size: 18px; margin: 0; }
.topbar .role { font-size: 12px; opacity: 0.85; }

.content { flex: 1; padding: 12px; padding-bottom: 80px; }

.card {
  background: var(--card);
  border-radius: 10px;
  padding: 14px;
  margin-bottom: 10px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.room-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.room-card { border-radius: 10px; padding: 12px; background: var(--card); box-shadow: 0 1px 3px rgba(0,0,0,0.08); }
.room-card.vacant { border-left: 4px solid var(--muted); }
.room-card.occupied.due { border-left: 4px solid var(--due); }
.room-card.occupied.clear { border-left: 4px solid var(--paid); }
.room-card .rnum { font-weight: bold; font-size: 16px; }
.room-card .tname { font-size: 13px; color: var(--muted); margin-top: 2px; }
.room-card .due-amt { font-weight: bold; margin-top: 6px; }
.room-card .due-amt.pos { color: var(--due); }
.room-card .due-amt.zero { color: var(--paid); }

input, select, textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 15px;
  margin-bottom: 10px;
  background: #fff;
}
label { font-size: 13px; color: var(--muted); display: block; margin-bottom: 4px; }

button {
  background: var(--green);
  color: #fff;
  border: none;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 15px;
  cursor: pointer;
  width: 100%;
}
button.secondary { background: #eee; color: var(--text); }
button.danger { background: var(--danger); }
button.small { width: auto; padding: 8px 12px; font-size: 13px; }

.tabbar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  display: flex;
  background: #fff;
  border-top: 1px solid #e5e5e5;
  z-index: 10;
}
.tabbar button {
  flex: 1;
  background: none;
  color: var(--muted);
  padding: 10px 4px;
  font-size: 12px;
  border-radius: 0;
}
.tabbar button.active { color: var(--green); font-weight: bold; }

.list-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid #eee;
}
.list-row:last-child { border-bottom: none; }

.badge { font-size: 11px; padding: 2px 8px; border-radius: 10px; background: #eee; }
.badge.due { background: #fdecea; color: var(--due); }
.badge.ok { background: #e9f7ef; color: var(--paid); }

.error { color: var(--danger); font-size: 13px; margin-bottom: 8px; }
.total-line { font-size: 20px; font-weight: bold; text-align: right; margin-top: 8px; }

.print-only { display: none; }
@media print {
  body * { visibility: hidden; }
  .print-only, .print-only * { visibility: visible; }
  .print-only { display: block; position: absolute; top: 0; left: 0; width: 100%; }
}