/* Maths Tutoring Rocks — admin portal */

.mtr-admin {
  --admin-sidebar: 15rem;
  --admin-bg: #0f1419;
  --admin-surface: #1a222c;
  --admin-line: rgba(255, 255, 255, 0.08);
  --admin-accent: #e07a2f;
  min-height: 100vh;
  background: var(--admin-bg);
  color: #e8eaed;
}

.mtr-admin--auth .mtr-admin__main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 4rem);
}

.mtr-admin__shell {
  display: grid;
  grid-template-columns: var(--admin-sidebar) 1fr;
  min-height: calc(100vh - 4rem);
}

@media (max-width: 900px) {
  .mtr-admin__shell {
    grid-template-columns: 1fr;
  }
  .mtr-admin__sidebar {
    display: none;
  }
  .mtr-admin__sidebar.is-open {
    display: block;
    position: fixed;
    inset: 4rem 0 0 0;
    z-index: 200;
    overflow-y: auto;
  }
}

.mtr-admin__sidebar {
  background: var(--admin-surface);
  border-right: 1px solid var(--admin-line);
  padding: 1.25rem 0;
}

.mtr-admin__nav {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mtr-admin__nav-btn {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  width: 100%;
  padding: 0.7rem 1.25rem;
  border: none;
  background: transparent;
  color: #b8c0cc;
  font: inherit;
  font-size: 0.95rem;
  text-align: left;
  cursor: pointer;
  border-left: 3px solid transparent;
}

.mtr-admin__nav-btn:hover {
  background: rgba(255, 255, 255, 0.04);
  color: #fff;
}

.mtr-admin__nav-btn.is-active {
  color: #fff;
  background: rgba(224, 122, 47, 0.12);
  border-left-color: var(--admin-accent);
}

.mtr-admin__main {
  padding: 1.5rem;
  overflow-x: auto;
}

.mtr-admin__panel {
  max-width: 72rem;
}

.mtr-admin__panel-title {
  font-family: "Bebas Neue", sans-serif;
  font-size: 2rem;
  letter-spacing: 0.04em;
  margin: 0 0 0.25rem;
}

.mtr-admin__panel-sub {
  color: #9aa3b2;
  margin: 0 0 1.5rem;
  font-size: 0.95rem;
}

.mtr-admin-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.mtr-admin-stat {
  background: var(--admin-surface);
  border: 1px solid var(--admin-line);
  border-radius: 0.5rem;
  padding: 1rem 1.1rem;
}

.mtr-admin-stat__value {
  font-family: "Bebas Neue", sans-serif;
  font-size: 2.25rem;
  line-height: 1;
  color: var(--admin-accent);
}

.mtr-admin-stat__label {
  font-size: 0.85rem;
  color: #9aa3b2;
  margin-top: 0.35rem;
}

.mtr-admin-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

@media (max-width: 768px) {
  .mtr-admin-grid {
    grid-template-columns: 1fr;
  }
}

.mtr-admin-card {
  background: var(--admin-surface);
  border: 1px solid var(--admin-line);
  border-radius: 0.5rem;
  padding: 1.1rem 1.25rem;
}

.mtr-admin-card h3 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
}

/* Calendar */
.mtr-cal {
  background: var(--admin-surface);
  border: 1px solid var(--admin-line);
  border-radius: 0.5rem;
  padding: 1rem;
}

.mtr-cal__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.mtr-cal__title {
  font-family: "Bebas Neue", sans-serif;
  font-size: 1.5rem;
  letter-spacing: 0.03em;
  margin: 0;
}

.mtr-cal__nav {
  display: flex;
  gap: 0.5rem;
}

.mtr-cal__grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}

.mtr-cal__dow {
  text-align: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: #9aa3b2;
  padding: 0.4rem 0;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.mtr-cal__cell {
  min-height: 5.5rem;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid transparent;
  border-radius: 0.25rem;
  padding: 0.35rem;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.mtr-cal__cell:hover {
  border-color: var(--admin-line);
  background: rgba(255, 255, 255, 0.03);
}

.mtr-cal__cell--muted {
  opacity: 0.35;
  pointer-events: none;
}

.mtr-cal__cell--today {
  border-color: var(--admin-accent);
}

.mtr-cal__day-num {
  font-size: 0.8rem;
  font-weight: 600;
  color: #9aa3b2;
  margin-bottom: 0.25rem;
}

.mtr-cal__cell--today .mtr-cal__day-num {
  color: var(--admin-accent);
}

.mtr-cal__event {
  display: block;
  width: 100%;
  text-align: left;
  border: none;
  border-radius: 0.2rem;
  padding: 0.15rem 0.35rem;
  margin-bottom: 0.15rem;
  font-size: 0.68rem;
  line-height: 1.25;
  cursor: pointer;
  color: #fff;
  background: rgba(224, 122, 47, 0.85);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mtr-cal__event--live {
  background: rgba(46, 160, 67, 0.9);
}

.mtr-cal__event--completed {
  background: rgba(110, 118, 129, 0.7);
}

.mtr-cal__event--cancelled {
  background: rgba(180, 60, 60, 0.5);
  text-decoration: line-through;
}

.mtr-cal__more {
  font-size: 0.65rem;
  color: #9aa3b2;
}

/* Modal */
.mtr-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  z-index: 400;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.mtr-modal {
  background: var(--admin-surface);
  border: 1px solid var(--admin-line);
  border-radius: 0.5rem;
  width: 100%;
  max-width: 28rem;
  max-height: 90vh;
  overflow-y: auto;
  padding: 1.25rem;
}

.mtr-modal h3 {
  margin: 0 0 1rem;
}

.mtr-modal__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.mtr-admin .session-field label {
  color: #b8c0cc;
}

.mtr-admin .session-field input,
.mtr-admin .session-field select,
.mtr-admin .session-field textarea {
  background: rgba(0, 0, 0, 0.25);
  border-color: var(--admin-line);
  color: #e8eaed;
}

.mtr-admin .session-meta {
  color: #9aa3b2;
}

.mtr-admin .session-btn--ghost {
  border-color: var(--admin-line);
  color: #e8eaed;
}

.mtr-admin-header-links {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.mtr-admin-appt {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--admin-line);
}

.mtr-admin-appt:last-child {
  border-bottom: none;
}

.mtr-admin-appt__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem;
}