:root { color-scheme: light; }
body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  margin: 0;
  background: #f6f7f9;
  color: #111;
  font-size: 14px;
  line-height: 1.35;
}
header {
  background: #111827;
  color: #fff;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
header a { color: #fff; text-decoration: none; }
.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}
.inline-form { margin: 0; }
.header-link-btn {
  background: none;
  border: 0;
  color: #fff;
  cursor: pointer;
  padding: 0;
  font: inherit;
}
.header-link-btn:hover { text-decoration: underline; }
main { max-width: 900px; margin: 18px auto 26px; padding: 0 14px 18px; }
.card {
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,.06);
  padding: 12px;
}
.calendar { width: 100%; border-collapse: collapse; table-layout: fixed; }
.calendar th {
  text-align: center;
  padding: 5px 3px;
  font-weight: 650;
  font-size: 12px;
  background: #f3f4f6;
}
.calendar td {
  vertical-align: top;
  border: 1px solid #e5e7eb;
  height: 76px;
  padding: 4px;
  background: #fff;
}
.daynum { font-size: 11px; font-weight: 650; opacity: .8; }
.muted { opacity: .6; }
.event {
  display: block;
  margin-top: 3px;
  padding: 3px 5px;
  border-radius: 8px;
  background: #eef2ff;
  color: #111;
  text-decoration: none;
  font-size: 11px;
  line-height: 1.15;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.event:hover { filter: brightness(.98); }
.toolbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.toolbar .spacer { flex: 1; }
.toolbar-secondary { margin-top: 8px; }
.month-title { margin: 0; }
.event-create-panel { margin-top: 12px; }
.summary-btn { display: inline-block; }
.event-create-form { margin-top: 10px; }
.actions-tight { margin-top: 10px; }
.calendar-wrap { margin-top: 12px; overflow: auto; }
.btn {
  display: inline-block;
  padding: 7px 10px;
  border-radius: 9px;
  background: #111827;
  color: #fff;
  text-decoration: none;
  border: 0;
  cursor: pointer;
  font-size: 13px;
}
.btn.secondary { background: #374151; }
.btn.danger { background: #991b1b; }
.btn-small { padding: 4px 8px; font-size: 12px; border-radius: 8px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
input, textarea, select {
  width: 100%;
  box-sizing: border-box;
  padding: 7px 9px;
  border-radius: 9px;
  border: 1px solid #d1d5db;
  font-size: 14px;
}
input[type="checkbox"],
input[type="radio"] {
  width: auto;
  padding: 0;
  margin-right: 6px;
  vertical-align: middle;
}
label { font-size: 13px; font-weight: 650; display: block; margin: 9px 0 5px; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.actions { margin-top: 12px; }
.flash { padding: 9px 11px; border-radius: 9px; margin: 10px 0; }
.flash.ok { background: #dcfce7; border: 1px solid #86efac; }
.flash.err { background: #fee2e2; border: 1px solid #fca5a5; }
table.simple { width: 100%; border-collapse: collapse; }
table.simple th, table.simple td { padding: 7px; border-bottom: 1px solid #e5e7eb; text-align: left; }
.audit-details-cell { max-width: 480px; white-space: pre-wrap; }
code { background: #f3f4f6; padding: 2px 6px; border-radius: 8px; }
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 10px;
}
.modal-backdrop.is-open { display: flex; }
.modal {
  background: #fff;
  border-radius: 12px;
  max-width: 680px;
  width: 100%;
  box-shadow: 0 10px 30px rgba(0,0,0,.18);
  padding: 12px;
}
.modal h2 { margin: 0 0 8px; }
.modal-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}
.section-subtitle { margin: 10px 0 6px; }
.event-delete-form { margin-top: 8px; }
.modal .actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 10px; flex-wrap: wrap; }
.clipboard-helper {
  position: absolute;
  left: -9999px;
  top: 0;
}

@media (min-width: 1200px) {
  main { max-width: 860px; }
  .calendar td { height: 72px; }
}

@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr; gap: 8px; }
  .calendar td { height: 66px; padding: 3px; }
  .calendar th { padding: 4px 2px; font-size: 11px; }
  .daynum { font-size: 10px; }
  .event { margin-top: 2px; padding: 2px 4px; font-size: 10px; }
  main { max-width: 760px; margin: 12px auto 16px; padding: 0 10px 12px; }
}

@media (max-width: 640px) {
  header { padding: 8px 10px; }
  main { margin: 8px auto; padding: 0 6px 8px; }
  .card { border-radius: 8px; padding: 8px; }
  .calendar td { height: 58px; }
  .btn { padding: 6px 8px; font-size: 12px; }
  table.simple th, table.simple td { padding: 6px; font-size: 12px; }
}