.admin-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.management-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.7fr) minmax(0, 1.3fr);
  gap: 16px;
}

.management-panel {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.006)),
    var(--panel);
  box-shadow: var(--shadow), var(--inner-glow);
}

.management-panel.wide {
  grid-column: span 2;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: start;
  margin-bottom: 14px;
}

.panel-head h2,
.management-panel h2 {
  margin: 6px 0 10px;
}

.management-panel p:not(.eyebrow),
.empty-state {
  color: var(--soft);
  font-weight: 850;
}

.management-filters,
.join-class-form {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.stack-form {
  display: grid;
  gap: 12px;
}

.stack-form label,
.management-filters label {
  display: grid;
  gap: 6px;
}

.stack-form span {
  color: var(--soft);
  font-size: 0.82rem;
  font-weight: 950;
}

.management-filters input,
.management-filters select,
.join-class-form input,
.stack-form input,
.stack-form select,
.stack-form textarea,
.role-select {
  min-height: 42px;
  min-width: 0;
  padding: 0 12px;
  color: var(--text);
  background: var(--field);
  border: 1px solid rgba(210, 236, 255, 0.22);
  border-radius: 8px;
}

.stack-form textarea {
  padding-top: 10px;
  resize: vertical;
}

.responsive-table {
  width: 100%;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

.data-table th,
.data-table td {
  padding: 11px 10px;
  border-bottom: 1px solid rgba(210, 236, 255, 0.12);
  text-align: left;
  vertical-align: middle;
}

.data-table th {
  color: var(--ice);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.data-table td {
  color: var(--soft);
  font-weight: 850;
}

.role-select {
  min-height: 34px;
  font-size: 0.82rem;
  font-weight: 950;
  text-transform: capitalize;
}

.role-select.role-admin {
  color: var(--ink);
  background: var(--gold);
}

.role-select.role-teacher {
  color: var(--ink);
  background: var(--ice);
}

.role-select.role-student {
  color: var(--ink);
  background: var(--green);
}

.class-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.class-card {
  min-height: 280px;
  display: grid;
  align-content: space-between;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.048), rgba(255, 255, 255, 0.006)),
    var(--panel);
  box-shadow: var(--inner-glow);
}

.class-card.archived {
  opacity: 0.62;
}

.class-card h3 {
  margin: 6px 0 8px;
}

.class-meta-row,
.button-row {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.class-meta-row span {
  min-height: 26px;
  display: inline-flex;
  align-items: center;
  padding: 0 8px;
  color: var(--ice);
  background: rgba(204, 234, 255, 0.14);
  border: 1px solid rgba(204, 234, 255, 0.26);
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 950;
}

.class-code-box {
  display: grid;
  gap: 4px;
  padding: 12px;
  border: 1px dashed rgba(230, 197, 110, 0.45);
  border-radius: 8px;
  background: rgba(230, 197, 110, 0.08);
}

.class-code-box.large {
  min-width: 250px;
}

.class-code-box small {
  color: var(--gold);
  font-weight: 950;
  text-transform: uppercase;
}

.class-code-box strong {
  font-size: 1.45rem;
  letter-spacing: 0.08em;
}

.compact-button {
  min-height: 34px;
  padding: 0 10px;
  font-size: 0.78rem;
}

.class-detail-hero {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: stretch;
  margin-bottom: 16px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(9, 30, 53, 0.78), rgba(34, 86, 124, 0.48)),
    linear-gradient(180deg, rgba(214, 236, 255, 0.08), rgba(8, 25, 45, 0.22)),
    url("/assets/moonveil-academy-hero.png") center / cover no-repeat;
  box-shadow: var(--shadow), var(--inner-glow);
}

.class-detail-hero h1 {
  margin: 8px 0 10px;
  font-size: 2.4rem;
}

@media (max-width: 920px) {
  .management-grid,
  .class-detail-hero {
    grid-template-columns: 1fr;
    display: grid;
  }

  .management-panel.wide {
    grid-column: span 1;
  }

  .panel-head {
    display: grid;
  }
}