:root {
  color-scheme: light dark;
  --primary: #1f6feb;
  --background: #0d1117;
  --text: #c9d1d9;
  --card: #161b22;
  --border: #30363d;
  --success: #2ea043;
  --warning: #bb8009;
  --muted: #8b949e;
}

* {
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", Roboto, sans-serif;
  margin: 0;
  background: var(--background);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

header,
footer {
  background: rgba(13, 17, 23, 0.85);
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border);
}

.page-header {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.page-header__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.page-header__titles h1 {
  margin: 0;
}

.page-header__controls {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.page-header__control {
  background: rgba(22, 27, 34, 0.7);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.75rem 1rem;
  display: grid;
  gap: 0.45rem;
}

.page-header__control--wide {
  grid-column: span 2;
}

.page-header__control label,
.page-header__control-label {
  color: var(--muted);
  font-size: 0.9rem;
}

.page-header__control-row {
  display: flex;
  gap: 0.75rem;
}

.page-header__control-row .button {
  flex-shrink: 0;
}

.page-header__contact-list {
  margin: 0;
  padding-left: 1rem;
  display: grid;
  gap: 0.25rem;
}

.page-header__schedule-note,
.page-header__schedule-closed {
  margin: 0;
  color: var(--muted);
  line-height: 1.4;
}

footer {
  border-top: 1px solid var(--border);
  border-bottom: none;
  margin-top: auto;
  text-align: center;
}

.subtitle {
  margin: 0.25rem 0 0;
  color: var(--muted);
}

.user-info {
  margin-top: 1rem;
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

.badge {
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  background: rgba(31, 111, 235, 0.2);
  border: 1px solid rgba(31, 111, 235, 0.4);
  border-radius: 999px;
  padding: 0.3rem 0.75rem;
}

.user-name {
  font-weight: 600;
}

.user-info form {
  margin-left: auto;
}

.login-form input,
.login-form select {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(13, 17, 23, 0.6);
  color: var(--text);
}

.button {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 0.6rem 1.4rem;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.button:hover,
.button:focus {
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(31, 111, 235, 0.35);
}

.button--secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.45rem 1.1rem;
  box-shadow: none;
}

.input,
select,
textarea {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(13, 17, 23, 0.6);
  color: var(--text);
  font-size: 0.95rem;
}

.input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(31, 111, 235, 0.45);
  outline-offset: 1px;
}

.loading,
.error {
  padding: 1rem;
  text-align: center;
  border-radius: 10px;
  border: 1px solid var(--border);
}

.error {
  border-color: #f85149;
  background: rgba(248, 81, 73, 0.12);
}

.dashboard {
  padding: 2rem;
  display: grid;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.dashboard__toolbar {
  display: none;
}

.schedule-plan {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.schedule-plan__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.schedule-plan__intro {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1 1 auto;
}

.schedule-plan__title {
  margin: 0;
  font-size: 1.4rem;
}

.schedule-plan__toggle {
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  width: 100%;
  padding: 0;
  font: inherit;
  text-align: left;
}

.schedule-plan__toggle:focus-visible {
  outline: 2px solid rgba(31, 111, 235, 0.8);
  outline-offset: 4px;
}

.schedule-plan__toggle-text {
  font-weight: 600;
}

.schedule-plan__toggle-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 999px;
  background: rgba(31, 111, 235, 0.15);
  color: rgba(255, 255, 255, 0.85);
  transition: transform 0.3s ease;
}

.schedule-plan__toggle-icon::before {
  content: "▾";
  font-size: 0.85rem;
  line-height: 1;
}

.schedule-plan--collapsed .schedule-plan__toggle-icon {
  transform: rotate(-90deg);
}

.schedule-plan__description {
  margin: 0.35rem 0 0;
  color: var(--muted);
  max-width: 60ch;
}

.schedule-plan__actions {
  flex-shrink: 0;
}

.schedule-plan__content {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
  max-height: var(--schedule-plan-content-max, 9999px);
  opacity: 1;
  overflow: hidden;
  transition: max-height 0.35s ease, opacity 0.25s ease;
}

.schedule-plan--collapsed .schedule-plan__content {
  max-height: 0;
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
}

@media (prefers-reduced-motion: reduce) {
  .schedule-plan__content {
    transition: none;
  }

  .schedule-plan__toggle-icon {
    transition: none;
  }
}

.schedule-plan__list {
  border-right: 1px solid var(--border);
  padding-right: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.schedule-plan__list h3 {
  margin: 0;
  font-size: 1rem;
}

.schedule-plan__hint {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.schedule-plan__items {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.schedule-plan__empty {
  padding: 1rem;
  border: 1px dashed var(--border);
  border-radius: 12px;
  text-align: center;
  color: var(--muted);
}

.schedule-plan__item-button {
  width: 100%;
  border: 1px solid var(--border);
  background: rgba(13, 17, 23, 0.6);
  border-radius: 12px;
  padding: 0.9rem 1rem;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  cursor: pointer;
  transition: border-color 0.2s ease, transform 0.2s ease;
  color: inherit;
}

.schedule-plan__item-button:hover,
.schedule-plan__item-button:focus {
  border-color: rgba(31, 111, 235, 0.6);
  transform: translateY(-1px);
  outline: none;
}

.schedule-plan__item--active .schedule-plan__item-button {
  border-color: rgba(31, 111, 235, 0.9);
  box-shadow: 0 0 0 2px rgba(31, 111, 235, 0.2);
}

.schedule-plan__item-label {
  font-weight: 600;
}

.schedule-plan__item-meta {
  font-size: 0.85rem;
  color: var(--muted);
}

.schedule-plan__editor {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.schedule-plan__days {
  display: grid;
  gap: 0.4rem;
  grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
}

.schedule-plan__days label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--text);
}

.schedule-plan__days input[type="checkbox"] {
  accent-color: var(--primary);
}

.schedule-plan__days--disabled label {
  opacity: 0.5;
}

.schedule-plan__date-inputs {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
}

.schedule-plan__date-list {
  list-style: none;
  padding: 0;
  margin: 0.75rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.schedule-plan__date-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(13, 17, 23, 0.6);
}

.schedule-plan__date-value {
  font-size: 0.9rem;
}

.schedule-plan__date-remove {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 999px;
  padding: 0.25rem 0.8rem;
  font-size: 0.8rem;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.schedule-plan__date-remove:hover,
.schedule-plan__date-remove:focus {
  color: var(--text);
  border-color: rgba(31, 111, 235, 0.6);
  outline: none;
}

.schedule-plan__date-empty {
  font-size: 0.85rem;
  color: var(--muted);
}

.schedule-plan__form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

fieldset.form-group {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
}

fieldset.form-group legend {
  padding: 0 0.5rem;
  font-size: 0.9rem;
  color: var(--muted);
}

@media (max-width: 960px) {
  .schedule-plan__content {
    grid-template-columns: minmax(0, 1fr);
  }

  .schedule-plan__list {
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding-right: 0;
    padding-bottom: 1rem;
  }
}

.form-error {
  margin: 0.75rem 0 0;
  color: #f85149;
  font-size: 0.85rem;
}

.form-helper {
  margin: 0.5rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.form-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.form-group label,
.form-group .form-label {
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 500;
}

.form-group:last-child {
  margin-bottom: 0;
}

.center-summary {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.75rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.22);
  display: grid;
  gap: 1rem;
}

.center-summary__description {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.admin-users {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.75rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.22);
  display: grid;
  gap: 1.5rem;
}

.admin-users__intro h2 {
  margin: 0 0 0.4rem;
}

.admin-users__intro p {
  margin: 0;
  color: var(--muted);
  line-height: 1.4;
}

.admin-users__grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.admin-users__card {
  background: rgba(22, 27, 34, 0.85);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.admin-users__card--wide {
  grid-column: 1 / -1;
}

.admin-users__card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.admin-users__card-header h3 {
  margin: 0;
}

.admin-users__table-wrapper {
  overflow-x: auto;
}

.admin-users__table {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
}

.admin-users__table th,
.admin-users__table td {
  padding: 0.75rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  font-size: 0.9rem;
}

.admin-users__table th {
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.admin-users__actions-heading {
  text-align: right;
}

.admin-users__table tbody tr:hover {
  background: rgba(31, 111, 235, 0.08);
}

.admin-users__row--selected {
  background: rgba(31, 111, 235, 0.15);
}

.admin-users__row--password {
  box-shadow: inset 0 0 0 1px rgba(46, 160, 67, 0.4);
}

.admin-users__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.5rem;
}

.admin-users__action {
  padding: 0.45rem 0.95rem;
  font-size: 0.85rem;
}

.admin-users__target {
  font-size: 0.85rem;
  color: var(--muted);
}

.admin-users__form {
  display: flex;
  flex-direction: column;
}

.admin-users__form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button--danger {
  background: #f85149;
  color: #fff;
  border: 1px solid rgba(248, 81, 73, 0.65);
}

.button--danger:hover,
.button--danger:focus {
  background: #f85149;
  box-shadow: 0 10px 20px rgba(248, 81, 73, 0.35);
}

.admin-users__table a {
  color: var(--primary);
  text-decoration: none;
}

.admin-users__table a:hover,
.admin-users__table a:focus {
  text-decoration: underline;
}

@media (max-width: 900px) {
  .admin-users__table {
    min-width: unset;
  }
}


.admin-logs {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.75rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.22);
  display: grid;
  gap: 1.5rem;
}

.admin-logs__header {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: flex-start;
}

.admin-logs__intro h2 {
  margin: 0 0 0.4rem;
}

.admin-logs__description {
  margin: 0;
  color: var(--muted);
  line-height: 1.4;
  max-width: 520px;
}

.admin-logs__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.admin-logs__filters {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  align-items: end;
}

.admin-logs__filters--path {
  grid-column: span 2;
}

.admin-logs__filters-actions {
  display: flex;
  gap: 0.75rem;
}

.admin-logs__loading {
  margin: 0;
  color: var(--muted);
  font-style: italic;
}

.admin-logs__table-wrapper {
  overflow-x: auto;
}

.admin-logs__table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
  background: rgba(22, 27, 34, 0.9);
}

.admin-logs__table th,
.admin-logs__table td {
  padding: 0.75rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  font-size: 0.9rem;
  vertical-align: top;
}

.admin-logs__table th {
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.admin-logs__table tbody tr:hover {
  background: rgba(31, 111, 235, 0.08);
}

.admin-logs__payload {
  display: inline-block;
  background: rgba(13, 17, 23, 0.75);
  border-radius: 8px;
  padding: 0.35rem 0.5rem;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
  font-size: 0.8rem;
  line-height: 1.4;
  max-width: 420px;
  overflow-wrap: anywhere;
}

.admin-logs__status {
  font-weight: 600;
}

.admin-logs__status--success {
  color: #3fb950;
}

.admin-logs__status--warning {
  color: #d29922;
}

.admin-logs__status--error {
  color: #f85149;
}

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

.admin-logs__pagination {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.admin-logs__page-info {
  font-size: 0.85rem;
  color: var(--muted);
}

.admin-logs__summary {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

@media (max-width: 720px) {
  .admin-logs__filters--path {
    grid-column: span 1;
  }

  .admin-logs__actions {
    width: 100%;
    justify-content: flex-start;
  }
}

.center-summary__details {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.center-summary__card {
  background: rgba(22, 27, 34, 0.8);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem;
  display: grid;
  gap: 0.75rem;
}

.center-summary__card h3 {
  margin: 0;
  font-size: 1rem;
}

.center-summary__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
  color: var(--muted);
}

.center-summary__list a {
  color: inherit;
  text-decoration: none;
}

.center-summary__list a:hover,
.center-summary__list a:focus {
  color: #fff;
  text-decoration: underline;
}

.center-summary__note {
  margin: 0;
  font-weight: 600;
  color: var(--muted);
}

.center-summary__closed {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.center-summary__debug {
  margin: 0;
  color: #3fb950;
  font-weight: 600;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
  padding: 0.2rem 0.65rem;
  border: 1px solid transparent;
  line-height: 1;
}

.status-badge--pending {
  background: rgba(234, 179, 8, 0.22);
  border-color: rgba(234, 179, 8, 0.5);
  color: #facc15;
}

.status-badge--confirmed {
  background: rgba(34, 197, 94, 0.25);
  border-color: rgba(34, 197, 94, 0.6);
  color: #34d399;
}

.metrics {
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0.2rem 0 0;
  box-shadow: none;
}

.metrics__grid {
  margin-top: 0.35rem;
  display: grid;
  gap: 0.35rem;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.metrics__empty {
  margin-top: 0.75rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

.metrics__card {
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0.35rem 0.25rem;
  display: grid;
  gap: 0.15rem;
}

.metrics__label {
  color: var(--muted);
  font-size: 0.78rem;
}

.metrics__value {
  font-size: 1.1rem;
  font-weight: 700;
}

.metrics__delta {
  color: var(--muted);
  font-size: 0.75rem;
}

.calendar {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.75rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.22);
}

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

.calendar__controls {
  display: flex;
  gap: 0.75rem;
}

.calendar__weekdays {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  margin-top: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.calendar__grid {
  margin-top: 0.75rem;
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 0.75rem;
}

.calendar__day {
  min-height: 140px;
  border: 1px solid rgba(48, 54, 61, 0.7);
  border-radius: 14px;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  background: rgba(13, 17, 23, 0.65);
}

.calendar__day--drag-over {
  outline: 3px solid rgba(31, 111, 235, 0.55);
  outline-offset: 0.125rem;
  box-shadow: 0 0 0 3px rgba(31, 111, 235, 0.25);
}

.calendar__day--outside {
  opacity: 0.35;
}

.calendar__day--today {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(31, 111, 235, 0.3);
}

.calendar__day-date {
  font-weight: 600;
}

.calendar__events {
  display: grid;
  gap: 0.35rem;
}

.calendar__slots {
  display: grid;
  gap: 0.35rem;
}

.calendar__slot {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.35rem 0.45rem;
  border-radius: 10px;
  border: 1px dashed rgba(48, 54, 61, 0.6);
  background: rgba(48, 54, 61, 0.25);
  font-size: 0.75rem;
  line-height: 1.3;
  color: var(--text);
}

.calendar__slot--drag-over {
  border-color: rgba(31, 111, 235, 0.8);
  background: rgba(31, 111, 235, 0.18);
}

.calendar__slot-label {
  font-weight: 600;
}

.calendar__slot-availability {
  color: var(--muted);
  font-size: 0.7rem;
}

.calendar__slot--low {
  border-color: rgba(234, 179, 8, 0.55);
  background: rgba(234, 179, 8, 0.14);
}

.calendar__slot--low .calendar__slot-availability {
  color: rgba(234, 179, 8, 0.85);
}

.calendar__slot--full {
  border-color: rgba(239, 68, 68, 0.6);
  background: rgba(239, 68, 68, 0.16);
}

.calendar__event--dragging {
  opacity: 0.65;
  cursor: grabbing;
}

.calendar__slot--full .calendar__slot-availability {
  color: rgba(239, 68, 68, 0.9);
}

.calendar__event {
  padding: 0.35rem 0.45rem;
  border-radius: 10px;
  background: rgba(31, 111, 235, 0.15);
  border: 1px solid rgba(31, 111, 235, 0.35);
  font-size: 0.8rem;
  line-height: 1.3;
}

.calendar__event strong {
  display: block;
  font-weight: 600;
}

.calendar__event--pending,
.calendar-detail__item--pending {
  border-color: rgba(234, 179, 8, 0.55);
  background: rgba(234, 179, 8, 0.16);
  box-shadow: inset 3px 0 0 rgba(234, 179, 8, 0.8);
  color: var(--text);
}

.calendar__event--confirmed,
.calendar-detail__item--confirmed {
  border-color: rgba(34, 197, 94, 0.6);
  background: rgba(34, 197, 94, 0.15);
  box-shadow: inset 3px 0 0 rgba(34, 197, 94, 0.75);
  color: var(--text);
}

.calendar__more-button {
  justify-self: flex-start;
  background: rgba(31, 111, 235, 0.12);
  border: 1px dashed rgba(31, 111, 235, 0.5);
  border-radius: 999px;
  padding: 0.25rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease,
    color 0.2s ease;
}

.calendar__more-button:hover,
.calendar__more-button:focus {
  color: #fff;
  border-color: rgba(31, 111, 235, 0.8);
  box-shadow: 0 8px 20px rgba(31, 111, 235, 0.25);
  transform: translateY(-1px);
  outline: none;
}

.calendar__more-button:focus-visible {
  outline: 2px solid rgba(31, 111, 235, 0.8);
  outline-offset: 2px;
}

.event-details {
  list-style: none;
  margin: 0.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.3rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.event-details--students {
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.event-details__student-item {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 0.6rem 0.75rem;
  display: grid;
  gap: 0.35rem;
  background: rgba(255, 255, 255, 0.02);
}

.event-details__empty {
  margin: 0.5rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.event-details__student-name {
  font-size: 0.9rem;
  color: var(--text);
}

.event-details__student-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.25rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.event-details__student-detail {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  line-height: 1.3;
}

.event-details li strong {
  color: var(--text);
  margin-right: 0.25rem;
}

.login-page {
  align-items: center;
  justify-content: center;
}

.login-container {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.5rem 2rem;
  max-width: 420px;
  width: calc(100% - 2rem);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.35);
}

.loading,
.error,
.success {
  padding: 1rem;
  text-align: center;
}

.login-page main {
  display: block;
  padding: 0;
  max-width: none;
  margin: 0;
}

.login-form {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
  text-align: left;
}

.login-form label {
  font-size: 0.95rem;
  color: var(--muted);
}

.calendar-detail[hidden] {
  display: none;
}

.calendar-detail {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  z-index: 1000;
}

.calendar-detail__overlay {
  position: absolute;
  inset: 0;
  background: rgba(13, 17, 23, 0.7);
  cursor: pointer;
}

.calendar-detail__panel {
  position: relative;
  z-index: 1;
  width: min(480px, 100%);
  max-height: calc(100vh - 4rem);
  overflow-y: auto;
  padding: 1.75rem;
  background: var(--card);
  border-radius: 18px;
  border: 1px solid var(--border);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.35);
  display: grid;
  gap: 1rem;
}

.calendar-detail__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.calendar-detail__title {
  margin: 0;
  font-size: 1.25rem;
}

.calendar-detail__description {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.calendar-detail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.calendar-detail__item {
  border: 1px solid rgba(31, 111, 235, 0.25);
  border-radius: 14px;
  padding: 0.9rem 1rem;
  background: rgba(31, 111, 235, 0.12);
  display: grid;
  gap: 0.5rem;
}

.calendar-detail__form {
  margin-top: 0.25rem;
  padding: 0.85rem;
  border-radius: 12px;
  border: 1px solid rgba(48, 54, 61, 0.75);
  background: rgba(13, 17, 23, 0.45);
  display: grid;
  gap: 0.75rem;
}

.calendar-detail__form-row {
  display: grid;
  gap: 0.75rem;
}

.calendar-detail__form-row--split {
  gap: 0.75rem;
}

.calendar-detail__form-field {
  display: grid;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.calendar-detail__form-field span {
  font-weight: 600;
  color: var(--text);
}

.calendar-detail__form input,
.calendar-detail__form select {
  width: 100%;
}

.calendar-detail__form-actions {
  display: flex;
  justify-content: flex-end;
}

.calendar-detail__form .button {
  padding: 0.5rem 1.1rem;
  border-radius: 10px;
  font-size: 0.9rem;
}

.calendar-detail__form .button[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.calendar-detail__form input[disabled],
.calendar-detail__form select[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
}

.upcoming-classes {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  box-shadow: 0 18px 35px rgba(0, 0, 0, 0.22);
}

.upcoming-classes__header {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.upcoming-classes__header h2 {
  margin: 0;
}

.upcoming-classes__description {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.upcoming-classes__helper {
  margin: 0;
  padding: 0.75rem 0.9rem;
  border-radius: 12px;
  background: rgba(31, 111, 235, 0.08);
  border: 1px solid rgba(31, 111, 235, 0.3);
  color: #d6e4ff;
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}

.upcoming-classes__helper strong {
  color: #9ec3ff;
  letter-spacing: 0.03em;
}

.upcoming-classes__empty {
  margin: 0;
  padding: 1rem;
  border: 1px dashed var(--border);
  border-radius: 12px;
  background: rgba(22, 27, 34, 0.6);
  color: var(--muted);
  text-align: center;
}

.upcoming-classes__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.upcoming-classes__item {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem 1.25rem;
  background: rgba(22, 27, 34, 0.85);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.18);
}

.upcoming-classes__item-header {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.upcoming-classes__item-title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
}

.upcoming-classes__category {
  align-self: flex-start;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  border-radius: 999px;
  padding: 0.2rem 0.65rem;
  background: rgba(31, 111, 235, 0.2);
  border: 1px solid rgba(31, 111, 235, 0.4);
  color: #9ec3ff;
  font-weight: 600;
}

.upcoming-classes__item-datetime {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.upcoming-classes__item-meta {
  margin: 0;
  color: #adb5c2;
  font-size: 0.85rem;
}

.upcoming-classes__students {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.upcoming-classes__student {
  border: 1px solid rgba(48, 54, 61, 0.7);
  border-radius: 10px;
  padding: 0.75rem 0.9rem;
  background: rgba(13, 17, 23, 0.65);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.upcoming-classes__student--empty {
  border-style: dashed;
  text-align: center;
  color: var(--muted);
  font-style: italic;
}

.upcoming-classes__student-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.upcoming-classes__student-name {
  font-weight: 600;
  font-size: 0.95rem;
}

.upcoming-classes__status {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 999px;
  padding: 0.25rem 0.6rem;
  border: 1px solid rgba(48, 54, 61, 0.9);
  background: rgba(48, 54, 61, 0.45);
  font-weight: 600;
}

.upcoming-classes__status--confirmed {
  background: rgba(46, 160, 67, 0.2);
  border-color: rgba(46, 160, 67, 0.55);
  color: #7ee787;
}

.upcoming-classes__status--pending,
.upcoming-classes__status--tentative {
  background: rgba(187, 128, 9, 0.2);
  border-color: rgba(187, 128, 9, 0.55);
  color: #f2cc60;
}

.upcoming-classes__status--hold {
  background: rgba(31, 111, 235, 0.2);
  border-color: rgba(31, 111, 235, 0.55);
  color: #8db4ff;
}

.upcoming-classes__student-details {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.upcoming-classes__student-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.upcoming-classes__student-contact-item {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.upcoming-classes__student-contact-item strong {
  color: var(--text);
  font-weight: 600;
}

.upcoming-classes__student-contact-item a {
  color: var(--primary);
  text-decoration: none;
}

.upcoming-classes__student-contact-item a:hover,
.upcoming-classes__student-contact-item a:focus {
  text-decoration: underline;
}

.calendar-detail__form-error {
  margin: 0;
  color: #f85149;
  font-size: 0.85rem;
}

.calendar-detail__form-error[hidden] {
  display: none;
}

.calendar-detail__item-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}

.calendar-detail__item-title {
  font-weight: 600;
  font-size: 1rem;
}

.calendar-detail__item-time {
  font-size: 0.85rem;
  color: var(--muted);
}

.calendar-detail__item-description {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.calendar-detail__status {
  margin-left: auto;
}

.calendar-detail__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  font-size: 0.8rem;
  color: var(--muted);
}

.calendar-detail__legend-label {
  font-weight: 600;
  color: var(--muted);
  margin-right: 0.25rem;
}

.calendar-detail__close {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease,
    transform 0.2s ease, box-shadow 0.2s ease;
}

.calendar-detail__close:hover,
.calendar-detail__close:focus {
  background: rgba(31, 111, 235, 0.2);
  border-color: rgba(31, 111, 235, 0.6);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 10px 25px rgba(31, 111, 235, 0.25);
  outline: none;
}

.calendar-detail__close:focus-visible {
  outline: 2px solid rgba(31, 111, 235, 0.8);
  outline-offset: 2px;
}

.calendar-detail--open .calendar-detail__panel {
  animation: calendar-detail-fade-in 0.25s ease;
}

body.calendar-detail-open {
  overflow: hidden;
}

@keyframes calendar-detail-fade-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 520px) {
  .calendar-detail__form-row--split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.login-form input {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(13, 17, 23, 0.6);
  color: var(--text);
}

@media (max-width: 960px) {
  .dashboard {
    padding: 1.5rem;
  }

  .calendar__day {
    min-height: 120px;
  }
}

@media (max-width: 720px) {
  header,
  footer {
    padding: 1.25rem 1.5rem;
  }

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

.error ul {
  text-align: left;
  margin: 0.75rem 0 0;
  padding-left: 1.25rem;
}

.error li {
  margin-bottom: 0.25rem;
}

.success {
  border-color: var(--success);
  background: rgba(46, 160, 67, 0.15);
}

@media (max-width: 600px) {
  main {
    padding: 1.5rem 1rem 3rem;
  }

  .toolbar__new-center-row {
    flex-direction: column;
  }

  .toolbar__new-center .button {
    width: 100%;
  }

  .calendar__grid {
    gap: 0.5rem;
  }

  .calendar__day {
    min-height: 110px;
    padding: 0.65rem;
  }

  .calendar-detail {
    align-items: flex-end;
    padding: 1.5rem 0.75rem;
  }

  .calendar-detail__panel {
    width: 100%;
    max-height: calc(100vh - 1.5rem);
    border-radius: 18px 18px 0 0;
  }
}