.admin-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
}

.admin-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
  padding: var(--space-6);
  border-right: 1px solid var(--color-border);
  background: rgba(7, 18, 31, 0.94);
  backdrop-filter: blur(16px);
}

.admin-sidebar__nav,
.tabs {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-7);
}

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

.admin-sidebar .tab.active {
  color: #d8fbff;
  background: var(--color-primary-soft);
  border-color: rgba(53, 200, 230, 0.34);
}

.admin-main {
  min-width: 0;
  padding: clamp(22px, 4vw, 48px);
}

.admin-toolbar {
  position: sticky;
  top: var(--space-4);
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: rgba(8, 20, 34, 0.86);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow-sm);
}

.admin-toolbar__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.admin-card {
  padding: var(--space-6);
  margin-bottom: var(--space-5);
}

.admin-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-5);
}

.admin-grid .field {
  margin: 0;
}

.admin-span-all {
  grid-column: 1 / -1;
}

.repeat-box {
  padding: var(--space-5);
  margin-block: var(--space-4);
}

.repeat-box__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.admin-feedback {
  display: none;
}

.admin-feedback.visible {
  display: block;
}

.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: var(--space-5);
}

.auth-card {
  width: min(520px, 100%);
  padding: clamp(24px, 5vw, 44px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(18, 34, 55, 0.98), rgba(8, 19, 33, 0.98));
  box-shadow: var(--shadow-lg);
}

.auth-card h1 {
  margin-block: var(--space-4) var(--space-3);
  font-size: clamp(2rem, 7vw, 3.3rem);
}

.auth-card > p {
  color: var(--color-muted);
}

.auth-card .btn {
  width: 100%;
}

@media (max-width: 900px) {
  .admin-shell {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    position: static;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }

  .admin-sidebar__nav,
  .tabs {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .admin-grid,
  .admin-sidebar__nav,
  .tabs {
    grid-template-columns: 1fr;
  }

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

.admin-toolbar h1 {
  margin-top: var(--space-2);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.admin-profile {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-8);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border);
}

.admin-profile > span {
  color: var(--color-muted);
  font-size: .76rem;
}

.admin-profile form,
.admin-profile .btn {
  width: 100%;
}

.admin-panel {
  display: none;
}

.admin-panel.active {
  display: block;
}

.admin-card > h2,
.repeat-box__header h2 {
  margin: var(--space-3) 0 var(--space-6);
  font-size: clamp(1.45rem, 2vw, 2rem);
}

.admin-card h3 {
  margin: var(--space-2) 0 0;
}

.admin-feedback {
  margin-bottom: var(--space-5);
}

.save-state {
  align-self: center;
  color: var(--color-muted);
  font-size: .78rem;
}

.compact-select {
  width: auto;
  min-width: 150px;
}

.checkbox-field label {
  justify-content: flex-start;
}

.checkbox-field input {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
}

.question-options {
  display: grid;
  gap: var(--space-3);
}

.option-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-3);
  align-items: end;
}

.option-row .field {
  margin: 0;
}

.question-controls {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-block: var(--space-4);
}

.question-controls .field {
  width: min(360px, 100%);
  margin: 0;
}

.btn-small {
  min-height: 38px;
  padding: 7px 11px;
  font-size: .76rem;
}

.auth-back {
  display: block;
  margin-top: var(--space-4);
  color: var(--color-muted);
  text-align: center;
  font-size: .82rem;
}

.auth-back:hover {
  color: var(--color-primary);
}

.auth-card code {
  overflow-wrap: anywhere;
  color: var(--color-text);
  font-family: var(--font-mono);
}

@media (max-width: 720px) {
  .question-controls,
  .option-row {
    align-items: stretch;
    grid-template-columns: 1fr;
    flex-direction: column;
  }

  .compact-select {
    width: 100%;
  }
}