:root {
  --bg: #f4f1ea;
  --fg: #1c1917;
  --muted: #57534e;
  --card: #fffcf7;
  --line: #d6d3d1;
  --accent: #b45309;
  --accent-fg: #fff7ed;
  --accent-soft: #f5e6d3;
  --danger: #b91c1c;
  --tap: 44px;
  --pad: 16px;
  --font: "PingFang SC", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
  --admin-text-page: 22px;
  --admin-text-title: 16px;
  --admin-text-body: 15px;
  --admin-text-label: 13px;
  --admin-text-meta: 13px;
  --admin-text-caption: 12px;
  --admin-radius: 14px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
}

.page {
  max-width: 40rem;
  margin: 0 auto;
  padding: var(--pad);
  padding-bottom: 24px;
}

h1 {
  font-size: 1.35rem;
  font-weight: 650;
  margin: 0 0 0.75rem;
}

p {
  margin: 0 0 1rem;
}

label {
  display: block;
  margin: 0 0 0.35rem;
  font-weight: 600;
}

input,
select,
textarea,
button {
  font: inherit;
}

input,
select,
textarea {
  width: 100%;
  min-height: var(--tap);
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  color: var(--fg);
}

button,
.btn,
.btn-secondary,
.btn-text {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--tap);
  padding: 0 1rem;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-fg);
  font-weight: 650;
  text-decoration: none;
  cursor: pointer;
}

.btn-secondary {
  background: var(--card);
  color: var(--fg);
  border: 1px solid var(--line);
}

.btn-text {
  background: transparent;
  color: var(--fg);
  min-width: var(--tap);
  border: 0;
}

.btn-sm {
  min-height: 32px;
  height: 32px;
  padding: 0 0.7rem;
  font-size: 13px;
  font-weight: 600;
}

.link-edit,
.link-danger {
  display: inline;
  min-height: 0;
  min-width: 0;
  height: auto;
  padding: 0;
  border: 0;
  background: transparent;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}

.link-edit {
  color: #b45309;
}

.link-danger {
  color: var(--danger);
}

.req-mark {
  color: var(--danger);
  font-weight: 600;
}

.lock-icon {
  display: inline-block;
  vertical-align: -1px;
  margin-left: 4px;
  color: var(--muted);
}

.option-list {
  margin: 0.5rem 0 0;
}

.option-label {
  margin: 0 0 6px;
  font-size: var(--admin-text-label);
  font-weight: 500;
  color: var(--fg);
}

.option-row {
  display: flex;
  gap: 6px;
  align-items: center;
  margin-bottom: 6px;
}

.option-row input {
  flex: 1;
  min-height: 36px;
  height: 36px;
}

.option-del,
.option-add {
  flex: 0 0 auto;
  min-height: 32px;
  height: 32px;
  min-width: 32px;
  padding: 0 0.55rem;
  font-size: 13px;
  background: var(--card);
  color: var(--fg);
  border: 1px solid var(--line);
}

.option-add {
  margin-top: 2px;
}

.admin-shell .days-hint,
.admin-shell .fields-hint,
.admin-shell .fields-lead,
.admin-shell .settings-hint,
.admin-shell .records-hint,
.admin-shell .admin-hint,
.admin-shell .login-lead {
  font-size: var(--admin-text-caption);
  font-style: italic;
}

.admin-shell {
  min-height: 100vh;
  min-width: 0;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  font-size: var(--admin-text-body);
  line-height: 1.55;
}

.admin-shell h1 {
  font-size: var(--admin-text-page);
  line-height: 1.2;
  font-weight: 650;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
  color: var(--fg);
}

.admin-shell h2 {
  margin: 0 0 0.75rem;
  font-size: var(--admin-text-title);
  font-weight: 600;
  color: var(--fg);
}

.admin-shell label {
  font-size: var(--admin-text-label);
  font-weight: 500;
  color: var(--fg);
}

.admin-shell input[type='date'],
.admin-shell input[type='time'],
.admin-shell select {
  height: 36px;
  max-height: 36px;
  min-height: 36px;
  padding: 2px 0.6rem;
  line-height: 36px;
  font-size: 14px;
  appearance: none;
  -webkit-appearance: none;
}

.admin-shell input:not([type='checkbox']):not([type='radio']),
.admin-shell textarea {
  font-size: 15px;
}

.admin-top {
  display: flex;
  align-items: center;
  min-width: 0;
  min-height: 48px;
  padding: 0 12px;
  background: var(--card);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.admin-nav {
  display: flex;
  min-width: 0;
  width: 100%;
  gap: 2px;
  overflow-x: auto;
  flex-wrap: nowrap;
  padding: 0;
  background: transparent;
  border: 0;
  scrollbar-width: none;
}

.admin-nav::-webkit-scrollbar {
  display: none;
}

.admin-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--tap);
  padding: 0 0.85rem;
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
}

.admin-nav a[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--fg);
  font-weight: 600;
}

.admin-nav .admin-logout {
  display: inline-flex;
  flex-shrink: 0;
  margin: 0;
  padding: 0;
}

.admin-nav .admin-logout button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--tap);
  padding: 0 0.85rem;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  white-space: nowrap;
  cursor: pointer;
}

.admin-main {
  flex: 1;
  padding: var(--pad);
  padding-bottom: 24px;
  max-width: 68rem;
  width: 100%;
  margin: 0 auto;
}

.admin-page-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  margin: -8px 0 16px;
}

.admin-panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--admin-radius);
  overflow: hidden;
}

.admin-panel-pad {
  padding: 1rem 1.1rem 1.15rem;
}

.admin-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  min-height: 52px;
  color: inherit;
  text-decoration: none;
  border-top: 1px solid var(--line);
}

.admin-row:first-child {
  border-top: 0;
}

.admin-hint {
  margin: 0 0 0.75rem;
  color: var(--muted);
  font-size: var(--admin-text-meta);
}

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

.login-page {
  max-width: 24rem;
  margin: 0 auto;
  padding: 32px 16px;
}

.login-page h1 {
  font-size: var(--admin-text-page);
  letter-spacing: -0.02em;
}

.login-lead {
  color: var(--muted);
  font-size: var(--admin-text-meta);
}

.login-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--admin-radius);
  padding: 1rem 1.1rem 1.15rem;
}

.login-card label {
  margin-top: 0.75rem;
  font-size: var(--admin-text-label);
  font-weight: 500;
}

.login-card label:first-of-type {
  margin-top: 0;
}

.login-error {
  color: var(--danger);
  font-weight: 650;
}

.login-submit {
  width: 100%;
  margin-top: 1rem;
}

@media (max-width: 639px) {
  .admin-nav a,
  .admin-nav .admin-logout button {
    padding: 0 0.6rem;
    font-size: 14px;
  }
}

@media (min-width: 960px) {
  .admin-top {
    padding: 0 24px;
  }

  .admin-main {
    padding: 28px 28px 48px;
  }
}