:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --panel: #ffffff;
  --text: #17202a;
  --muted: #667085;
  --line: #d9dee7;
  --accent: #1565c0;
  --accent-dark: #0d47a1;
  --danger: #b42318;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Microsoft JhengHei", "Noto Sans TC", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}

button,
input,
select {
  font: inherit;
}

button {
  border: 0;
  border-radius: 6px;
  padding: 10px 14px;
  background: var(--accent);
  color: white;
  cursor: pointer;
}

button:hover {
  background: var(--accent-dark);
}

.small-button {
  padding: 6px 10px;
  font-size: 14px;
  white-space: nowrap;
}

.secondary-button {
  margin-left: 6px;
  background: #64748b;
}

.secondary-button:hover {
  background: #475569;
}

.danger-button {
  background: var(--danger);
}

.danger-button:hover {
  background: #8f1d13;
}

.table-input {
  min-width: 180px;
  padding: 6px 8px;
}

.table-select {
  min-width: 220px;
  padding: 6px 8px;
}

.inline-options {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.inline-checkbox {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.inline-checkbox.disabled {
  color: var(--muted);
}

.hidden {
  display: none !important;
}

.login {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-panel {
  width: min(420px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
}

.login-panel h1 {
  margin-top: 0;
}

form {
  display: grid;
  gap: 14px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
}

small {
  line-height: 1.5;
  color: var(--muted);
}

input,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 12px;
  background: white;
  color: var(--text);
}

.message {
  color: var(--danger);
  min-height: 24px;
}

.app {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
}

.sidebar {
  background: #1f2937;
  color: white;
  padding: 20px;
  display: grid;
  align-content: start;
  gap: 10px;
}

.sidebar h1 {
  font-size: 22px;
  margin: 0 0 12px;
}

.sidebar button {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.18);
  text-align: left;
}

.sidebar button:hover {
  background: rgba(255, 255, 255, 0.1);
}

.content {
  padding: 24px;
  min-width: 0;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

header h2 {
  margin: 0;
}

#statusText {
  color: var(--muted);
}

.view {
  display: grid;
  gap: 18px;
}

.form-grid {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  align-items: start;
}

.form-grid button {
  align-self: end;
}

.filter-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.plan-groups {
  display: grid;
  gap: 14px;
}

.plan-list-switcher {
  display: grid;
  grid-template-columns: minmax(260px, 420px) 1fr;
  align-items: end;
  gap: 12px;
  margin-bottom: 12px;
}

.plan-list-switcher label {
  margin: 0;
}

.plan-list-switcher p {
  margin: 0 0 10px;
  color: var(--muted);
  word-break: break-all;
}

@media (max-width: 760px) {
  .plan-list-switcher {
    grid-template-columns: 1fr;
  }

  .plan-list-switcher p {
    margin-bottom: 0;
  }
}

.plan-group {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}

.plan-group + .plan-group {
  margin-top: 14px;
}

.plan-group-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}

.plan-group-header h3 {
  margin: 0 0 4px;
  font-size: 18px;
}

.plan-group-header p {
  margin: 0;
  color: var(--muted);
  word-break: break-all;
}

.plan-group-header .warning-text {
  margin-top: 6px;
  color: #9a5b00;
}

.plan-group-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.password-grid {
  max-width: 760px;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
}

.checkbox input {
  width: auto;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 14px;
}

.card,
.table {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}

.card strong {
  display: block;
  font-size: 28px;
  margin-top: 8px;
}

.hint {
  margin: 0 0 12px;
  color: var(--muted);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th,
td {
  padding: 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  word-break: break-all;
}

th {
  color: var(--muted);
  font-weight: 600;
}

@media (max-width: 820px) {
  .app {
    grid-template-columns: 1fr;
  }

  .sidebar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}