* { box-sizing: border-box; }

:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --border: #dfe1e6;
  --text: #172b4d;
  --muted: #6b778c;
  --primary: #0052cc;
  --primary-dark: #0747a6;
  --green: #00875a;
  --amber: #ff8b00;
  --red: #de350b;
}

body {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  background: #1c2430;
  color: #fff;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 30px;
}

.topbar h1 { font-size: 18px; margin: 0; letter-spacing: 0.5px; }

.tabs { display: flex; gap: 4px; }

.tab {
  background: transparent;
  border: none;
  color: #aeb6c2;
  padding: 8px 14px;
  cursor: pointer;
  font-size: 14px;
  border-radius: 6px;
}

.tab:hover { color: #fff; }
.tab.active { background: rgba(255,255,255,0.12); color: #fff; }

main { max-width: 1000px; margin: 0 auto; padding: 24px 20px 60px; }

.panel { display: none; }
.panel.active { display: block; }

h2 { margin: 0 0 16px; font-size: 20px; }

.form-row {
  display: flex;
  gap: 16px;
  margin-bottom: 14px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.form-row label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
  position: relative;
}

label.checkrow {
  flex-direction: row;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  cursor: pointer;
  color: var(--text);
}

.debt-out { font-weight: 700; font-size: 14px; color: var(--red); padding-top: 7px; }

.status-line { font-weight: 600; margin: 4px 0 12px; }
.status-line .badge { font-size: 13px; padding: 4px 12px; }

input, select {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  background: #fff;
  color: var(--text);
}

input:focus, select:focus { outline: 2px solid var(--primary); border-color: transparent; }

.big-input { width: 100%; padding: 10px 12px; font-size: 15px; margin-bottom: 16px; }

.item-list { margin-bottom: 12px; }

.item-row {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--border);
  padding: 8px;
  border-radius: 8px;
}

.item-row select { flex: 0 0 180px; }
.item-row input[type="text"] { flex: 1; }
.item-row input[type="number"] { flex: 0 0 140px; }

.btn {
  padding: 8px 14px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
}

.btn:hover { background: #f0f2f5; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dark); }
.btn.danger { color: var(--red); border-color: #f5c6bb; }
.btn.danger:hover { background: #ffebe6; }
.btn.small { padding: 4px 10px; font-size: 13px; }
.btn.icon { padding: 4px 8px; }

.actions { display: flex; gap: 10px; margin-top: 8px; }

.msg { color: var(--green); font-weight: 600; min-height: 18px; }
.msg.error { color: var(--red); }

.autocomplete { position: relative; display: block; width: 100%; }
.autocomplete input { width: 100%; }

.suggest {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  min-width: 240px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 6px;
  max-height: 200px;
  overflow-y: auto;
  z-index: 200;
  box-shadow: 0 4px 12px rgba(0,0,0,0.12);
  pointer-events: none;
}

.suggest div { pointer-events: auto; }

.suggest div { padding: 8px 10px; cursor: pointer; font-size: 14px; }
.suggest div:hover { background: #eef3fc; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  margin-bottom: 10px;
}

.card-header { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.card-header .name { font-weight: 600; font-size: 16px; }
.card-header .meta { color: var(--muted); font-size: 13px; }

.chips { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.chip {
  background: #eef3fc;
  border-radius: 12px;
  padding: 3px 10px;
  font-size: 13px;
}

.chip.free { background: #e3fcef; color: #006644; font-weight: 600; }

.free-check {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  color: var(--green);
  cursor: pointer;
  white-space: nowrap;
}

.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.badge.unpaid { background: #ffe9db; color: #974f0c; }
.badge.checkout { background: #fff4d6; color: #7a5200; }
.badge.paid { background: #e3fcef; color: #006644; }

.strip { display: flex; gap: 14px; margin-bottom: 18px; flex-wrap: wrap; }
.strip-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 18px;
  flex: 1;
  min-width: 140px;
}
.strip-card .k { font-size: 12px; color: var(--muted); }
.strip-card .v { font-size: 20px; font-weight: 700; margin-top: 2px; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); font-size: 14px; }
th { color: var(--muted); font-weight: 600; }

.rank { font-weight: 700; color: var(--muted); width: 40px; }

.seg { display: inline-flex; gap: 4px; margin-bottom: 14px; background: #e9ebef; padding: 3px; border-radius: 8px; }
.range-row { display: flex; gap: 14px; align-items: flex-end; margin-bottom: 14px; }
.range-row label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
.seg-btn {
  border: none; background: transparent; padding: 6px 16px; border-radius: 6px;
  cursor: pointer; font-size: 14px; color: var(--muted);
}
.seg-btn.active { background: #fff; color: var(--text); font-weight: 600; box-shadow: 0 1px 3px rgba(0,0,0,0.12); }

.modal {
  position: fixed;
  inset: 0;
  background: rgba(9,30,66,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal.hidden { display: none; }

.modal-box {
  background: #fff;
  border-radius: 10px;
  padding: 20px;
  width: 640px;
  max-width: 94vw;
  max-height: 90vh;
  overflow: auto;
}

.muted { color: var(--muted); font-size: 13px; word-break: break-all; }
.move-up, .move-down { min-width: 32px; }
.tip { background: #fff4d6; border: 1px solid #f0c964; border-radius: 8px; padding: 10px 14px; font-size: 13px; color: #7a5200; margin-top: 12px; }

.empty { color: var(--muted); text-align: center; padding: 30px; }
/* ---------- Mobile / responsive ---------- */
@media (max-width: 720px) {
  .topbar { flex-wrap: wrap; gap: 6px; padding: 8px 10px; }
  .topbar h1 { font-size: 16px; }
  .tabs { overflow-x: auto; white-space: nowrap; -webkit-overflow-scrolling: touch; width: 100%; }
  .tab { padding: 8px 12px; font-size: 13px; }
  main { padding: 14px 10px 60px; }
  .form-row { gap: 10px; }
  .form-row label { flex: 1 1 45%; min-width: 130px; }
  .form-row label.checkrow { flex: 1 1 100%; }
  .item-row { flex-wrap: wrap; }
  .item-row select { flex: 1 1 100%; }
  .item-row input[type="text"] { flex: 1 1 100%; }
  .item-row input[type="number"] { flex: 1 1 40%; }
  .panel { overflow-x: auto; }
  .strip-card { min-width: 120px; }
  .modal-box { width: 96vw; padding: 16px; }
  .actions { flex-wrap: wrap; }
  .suggest { min-width: 0; }
  table { font-size: 13px; }
  th, td { padding: 6px 8px; }
  .seg-btn { padding: 6px 12px; font-size: 13px; }
}