:root {
  --bg: #f2f5f8;
  --panel: #ffffff;
  --border: #d7dee7;
  --text: #1c2733;
  --muted: #5f6b77;
  --primary: #2274e5;
  --danger: #c63434;
  --warning: #8a6b00;
  --chip-used: #ffe8e8;
  --chip-free: #e7f7ec;
  --chip-unknown: #fff6d8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans", "Segoe UI", sans-serif;
  background: linear-gradient(180deg, #f4f7fb 0%, #ecf1f7 100%);
  color: var(--text);
}

[v-cloak] {
  display: none;
}

.app-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem;
  display: grid;
  gap: 1rem;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
}

.topbar h1 {
  margin: 0;
  font-size: 1.45rem;
}

.topbar p {
  margin: 0.2rem 0 0;
  color: var(--muted);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
}

.panel h2 {
  margin: 0 0 0.8rem;
  font-size: 1.05rem;
}

.entry-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
  align-items: end;
}

.entry-form label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.9rem;
  color: var(--muted);
}

input,
select,
button {
  font: inherit;
}

input,
select {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem 0.55rem;
  min-height: 2.2rem;
  background: #fff;
  color: var(--text);
}

.btn {
  border: 0;
  border-radius: 8px;
  padding: 0.55rem 0.85rem;
  cursor: pointer;
  min-height: 2.2rem;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-secondary {
  background: #e8edf5;
  color: var(--text);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.status {
  margin-bottom: 0.8rem;
  padding: 0.65rem 0.8rem;
  border-radius: 8px;
  background: #e8f0fc;
  border: 1px solid #c7daf8;
  color: #2a4b7d;
}

.status.warning {
  background: #fff8df;
  border-color: #f0db97;
  color: var(--warning);
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 900px;
}

th,
td {
  border-bottom: 1px solid var(--border);
  padding: 0.55rem;
  text-align: left;
  vertical-align: middle;
}

th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.88rem;
  user-select: none;
  cursor: pointer;
  white-space: nowrap;
}

th:last-child {
  cursor: default;
}

.status-cell,
.toggle-cell,
.actions {
  white-space: nowrap;
}

.actions {
  display: flex;
  gap: 0.45rem;
}

.containers {
  color: var(--muted);
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chip {
  display: inline-block;
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
  font-size: 0.78rem;
  font-weight: 600;
}

.chip.used {
  background: var(--chip-used);
  color: #8a1f1f;
}

.chip.free {
  background: var(--chip-free);
  color: #145a2c;
}

.chip.unknown {
  background: var(--chip-unknown);
  color: #7d5b04;
}

.empty {
  text-align: center;
  color: var(--muted);
  padding: 1rem;
}

@media (max-width: 760px) {
  .app-shell {
    padding: 1rem;
  }

  .topbar {
    flex-direction: column;
    align-items: stretch;
  }
}