:root {
  --bg: #f4f6f8;
  --surface: #ffffff;
  --text: #1d2329;
  --muted: #6b7280;
  --border: #e3e6ea;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-soft: #eff4ff;
  --danger: #dc2626;
  --radius: 10px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(16, 24, 40, 0.08), 0 1px 2px rgba(16, 24, 40, 0.04);
  --sidebar-w: 248px;
  --topbar-h: 60px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family:
    "Segoe UI",
    system-ui,
    -apple-system,
    sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.hidden {
  display: none !important;
}

/* ================= Entitlement / plan summary ================= */
.entitlement-card {
  margin-top: 16px;
  padding: 16px;
}
.entitlement-card-head,
.entitlement-premium {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.entitlement-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}
.entitlement-card[data-ux-state="FREE_LIMIT_WARNING"] .entitlement-usage-row {
  background: #fff7ed;
}
.entitlement-card[data-ux-state="FREE_LIMIT_REACHED"] .entitlement-usage-row {
  background: #fef2f2;
}
.entitlement-card[data-ux-state="PREMIUM_ACTIVE"] .entitlement-premium {
  background: var(--primary-soft);
  border-radius: 10px;
  padding: 14px;
  border-top: 0;
}
.entitlement-card h3 {
  margin: 2px 0 0;
}
.entitlement-card .eyebrow {
  color: var(--primary);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.entitlement-scope,
.entitlement-premium p {
  margin: 2px 0 0;
  font-size: 13px;
}
.entitlement-usage {
  display: grid;
  gap: 8px;
  margin: 16px 0;
}
.entitlement-usage-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--primary-soft);
  font-size: 13px;
}
.entitlement-premium {
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.premium-account-card,
.premium-dialog-head,
.premium-dialog-actions,
.premium-info-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.premium-account-card {
  margin-bottom: 16px;
  padding: 16px;
}
.premium-account-card h3,
.premium-info-card h3,
.premium-info-note h3 {
  margin: 4px 0 6px;
}
.premium-info-page {
  padding-bottom: 24px;
}
.premium-info-heading {
  margin-bottom: 20px;
}
.premium-info-heading h2 {
  margin: 4px 0;
}
.premium-info-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.premium-info-card,
.premium-info-note {
  padding: 20px;
}
.premium-info-card ul {
  margin: 12px 0 0;
  padding-left: 20px;
}
.premium-info-card li + li {
  margin-top: 8px;
}
.premium-info-highlight {
  border-color: #bfdbfe;
  background: linear-gradient(135deg, var(--primary-soft) 0%, var(--surface) 100%);
}
.premium-info-icon {
  font-size: 28px;
}
.premium-info-note {
  margin-top: 16px;
  border-left: 4px solid var(--primary);
}
.premium-info-note p {
  margin: 8px 0 0;
}
.premium-dialog {
  width: min(100% - 32px, 520px);
  margin: auto;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 16px;
  color: var(--text);
  background: var(--surface);
  box-shadow: 0 18px 50px rgba(16, 24, 40, 0.22);
}
.premium-dialog::backdrop {
  background: rgba(16, 24, 40, 0.48);
}
.premium-dialog-head h2 {
  margin: 4px 0 0;
}
.premium-dialog > p {
  margin: 16px 0 0;
}
.premium-paywall-details {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 10px;
  background: var(--primary-soft);
}
.premium-paywall-details p {
  margin: 0;
}
.premium-paywall-details p + p {
  margin-top: 6px;
}
.premium-paywall-benefit {
  font-weight: 600;
}
.premium-dialog-actions {
  justify-content: flex-start;
  margin-top: 20px;
}
.premium-dialog .btn,
.premium-account-card .btn,
.premium-info-page .btn,
.entitlement-card .btn {
  min-height: 48px;
}

.billing-sandbox-panel {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.billing-sandbox-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.billing-checkout-form {
  min-height: 4px;
}
.billing-account-page {
  padding-bottom: 24px;
}
.billing-account-heading,
.billing-account-scope,
.billing-account-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.billing-account-heading {
  margin-bottom: 20px;
}
.billing-account-heading h2,
.billing-account-card h3,
.billing-account-benefits h3,
.billing-account-invoice h3 {
  margin: 4px 0 6px;
}
.billing-account-scope,
.billing-account-card,
.billing-account-benefits,
.billing-account-history,
.billing-account-invoice {
  padding: 20px;
}
.billing-account-scope {
  margin-bottom: 16px;
}
.billing-account-scope h3 {
  margin: 4px 0 0;
}
.billing-account-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.billing-account-card {
  min-height: 250px;
}
.billing-account-state {
  display: inline-flex;
  margin: 8px 0 0;
  padding: 4px 10px;
  border-radius: 999px;
  color: #164e63;
  background: #ecfeff;
  font-weight: 700;
}
.billing-account-state[data-state="PREMIUM_ACTIVE"] {
  color: #166534;
  background: #f0fdf4;
}
.billing-account-state[data-state="PREMIUM_CANCELED"],
.billing-account-state[data-state="PREMIUM_EXPIRED"] {
  color: #7f1d1d;
  background: #fef2f2;
}
.billing-account-details {
  display: grid;
  gap: 8px;
  margin: 18px 0 0;
}
.billing-account-details div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}
.billing-account-details dt,
.billing-account-details dd {
  margin: 0;
  font-size: 13px;
}
.billing-account-details dt {
  color: var(--muted);
}
.billing-account-details dd {
  text-align: right;
  font-weight: 600;
}
.billing-account-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}
.billing-account-page .btn {
  min-height: 48px;
}
.billing-account-benefits,
.billing-account-history,
.billing-account-invoice {
  margin-top: 16px;
}
.billing-account-benefits ul {
  margin: 12px 0 0;
  padding-left: 20px;
}
.billing-account-benefits li + li {
  margin-top: 6px;
}
.billing-account-history {
  overflow: hidden;
}
.billing-payment-table {
  min-width: 480px;
  margin-top: 12px;
}
.billing-payment-table th,
.billing-payment-table td {
  padding: 10px 12px;
}
.billing-cancel-dialog #billing-cancel-warning {
  font-weight: 600;
}
@media (max-width: 560px) {
  .entitlement-premium,
  .premium-account-card,
  .premium-info-heading,
  .premium-dialog-actions {
    align-items: flex-start;
    flex-direction: column;
  }
  .entitlement-badges {
    justify-content: flex-start;
  }
  .premium-info-grid {
    grid-template-columns: 1fr;
  }
  .billing-account-heading,
  .billing-account-scope,
  .billing-account-section-head {
    align-items: flex-start;
    flex-direction: column;
  }
  .billing-account-grid {
    grid-template-columns: 1fr;
  }
}

/* ================= Onboarding / personal-first welcome flow ================= */
.onboarding-shell {
  width: min(100%, 620px);
  margin: 8px auto;
  padding: 16px 0 32px;
}
.onboarding-card.card {
  position: relative;
  padding: 28px clamp(20px, 5vw, 48px) 24px;
  border: 0;
  border-radius: 24px;
  box-shadow: 0 18px 50px rgba(37, 99, 235, 0.12);
  overflow: hidden;
}
.onboarding-card h1 {
  margin: 0 0 8px;
  font-size: clamp(28px, 5vw, 38px);
  line-height: 1.12;
  letter-spacing: -0.04em;
}
.onboarding-lead {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 16px;
}
.onboarding-progress {
  margin-bottom: 28px;
}
.onboarding-progress-label {
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
}
.onboarding-progress-count {
  float: right;
  color: var(--muted);
  font-size: 13px;
}
.onboarding-progress-dots {
  display: flex;
  align-items: center;
  margin-top: 10px;
}
.onboarding-dot {
  width: 10px;
  height: 10px;
  flex: 0 0 10px;
  border-radius: 50%;
  background: #dbe4f5;
  transition:
    background-color 0.18s ease,
    transform 0.18s ease;
}
.onboarding-dot.active {
  background: var(--primary);
  transform: scale(1.25);
}
.onboarding-dot.complete {
  background: var(--primary);
}
.onboarding-progress-line {
  height: 2px;
  flex: 1;
  background: #e5eaf3;
}
.onboarding-hero {
  position: relative;
  display: grid;
  place-items: center;
  height: 150px;
  margin: -8px 0 16px;
  background: linear-gradient(145deg, #eff6ff, #fff7df);
  border-radius: 22px;
}
.onboarding-mascot {
  display: grid;
  place-items: center;
  width: 106px;
  height: 106px;
  border-radius: 38% 46% 42% 50%;
  background: #2563eb;
  box-shadow: 0 12px 0 #bcd2ff;
  font-size: 54px;
  transform: rotate(-4deg);
}
.mascot-spark {
  position: absolute;
  right: 27%;
  top: 20px;
  color: #f59e0b;
  font-size: 28px;
}
.onboarding-step-icon,
.ready-mascot {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  margin: 8px 0 18px;
  border-radius: 20px;
  background: #fff7df;
  font-size: 31px;
}
.ready-mascot {
  width: 100px;
  height: 100px;
  margin: 6px auto 18px;
  border-radius: 34px;
  background: #fff7df;
  font-size: 54px;
  animation: onboarding-pop 0.2s ease-out;
}
.goal-grid {
  display: grid;
  gap: 10px;
}
.goal-card {
  display: grid;
  grid-template-columns: 42px 1fr 24px;
  align-items: center;
  gap: 12px;
  width: 100%;
  min-height: 68px;
  padding: 10px 14px;
  border: 2px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition:
    border-color 0.18s ease,
    background-color 0.18s ease,
    transform 0.18s ease;
}
.goal-card:hover {
  border-color: #9bb8f5;
  transform: translateY(-1px);
}
.goal-card.active {
  border-color: var(--primary);
  background: var(--primary-soft);
}
.goal-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: #fef3c7;
  font-size: 22px;
}
.goal-check {
  color: var(--primary);
  opacity: 0;
  font-size: 20px;
}
.goal-card.active .goal-check {
  opacity: 1;
}
.consent-list {
  display: grid;
  gap: 10px;
  margin: 8px 0 14px;
}
.consent-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px;
  border: 1px solid var(--border);
  border-radius: 14px;
  cursor: pointer;
}
.consent-row input {
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
  margin: 0;
  accent-color: var(--primary);
}
.consent-row span {
  font-size: 14px;
  line-height: 1.4;
}
.consent-note {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}
.onboarding-actions {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 24px;
}
.onboarding-actions .btn,
.ready-actions .btn {
  min-height: 50px;
}
.onboarding-actions #onboarding-next,
.onboarding-actions #onboarding-complete {
  margin-left: auto;
}
.ready-actions {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}
.onboarding-card :focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 3px;
}
@keyframes onboarding-pop {
  from {
    opacity: 0.5;
    transform: scale(0.92);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}
@media (max-width: 600px) {
  .onboarding-shell {
    margin: 0 -8px;
    padding: 0 0 24px;
  }
  .onboarding-card {
    min-height: calc(100vh - var(--topbar-h) - 24px);
    padding: 20px 18px 18px;
    border-radius: 20px;
  }
  .onboarding-hero {
    height: 132px;
  }
  .onboarding-card h1 {
    font-size: 29px;
  }
  .onboarding-actions {
    position: sticky;
    bottom: 0;
    margin: 24px -18px -18px;
    padding: 14px 18px 18px;
    background: rgba(255, 255, 255, 0.96);
    z-index: 2;
  }
  .onboarding-actions .btn {
    flex: 1;
  }
}
@media (prefers-reduced-motion: reduce) {
  .onboarding-dot,
  .goal-card,
  .ready-mascot {
    transition: none;
    animation: none;
  }
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.muted {
  color: var(--muted);
}

.review-card {
  margin-top: 16px;
  padding: 16px;
  border-color: #c7d7fe;
  background: linear-gradient(135deg, #f8fbff, #fff);
}

.review-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.review-card h3 {
  margin: 0 0 4px;
}

.review-card p {
  margin: 0;
}

.review-card-icon {
  display: grid;
  flex: 0 0 36px;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 50%;
  background: #dbeafe;
  color: #1d4ed8;
  font-size: 22px;
  font-weight: 700;
}

.review-items {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.review-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.review-item-copy {
  min-width: 0;
}

.review-item-copy strong {
  display: inline-block;
  overflow-wrap: anywhere;
}

.review-item-copy p {
  margin-top: 4px;
  font-size: 12px;
}

.review-priority {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 7px;
  border-radius: 999px;
  background: #eef2ff;
  color: #3730a3;
  font-size: 11px;
  font-weight: 700;
  vertical-align: middle;
}

.review-empty {
  padding: 8px 0 2px;
  font-size: 13px;
}

@media (max-width: 600px) {
  .review-item {
    align-items: stretch;
    flex-direction: column;
  }

  .review-item .btn {
    min-height: 48px;
    width: 100%;
  }
}

.mono {
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 13px;
}

/* ================= Butonlar ================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    background-color 0.15s ease,
    color 0.15s ease,
    opacity 0.15s ease;
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border-color: var(--border);
}

.btn-ghost:hover {
  background: var(--bg);
  color: var(--text);
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 7px 12px;
  font-size: 13px;
}

.btn-icon {
  padding: 8px 10px;
  font-size: 18px;
  line-height: 1;
}

/* Spinner (loading) */
.btn-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ================= Login ================= */
.login-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: linear-gradient(160deg, #eef2ff 0%, var(--bg) 45%);
}

.login-card {
  width: 100%;
  max-width: 380px;
  padding: 32px 28px;
}

.social-login {
  display: grid;
  gap: 0.625rem;
  margin-bottom: 1rem;
}

.social-login .muted {
  margin: 0;
  text-align: center;
  font-size: 0.8125rem;
}

.brand {
  margin-bottom: 24px;
  text-align: center;
}

.brand h1 {
  margin: 0;
  font-size: 28px;
  letter-spacing: -0.02em;
  color: var(--primary);
}

.brand p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.field {
  display: block;
  margin-bottom: 16px;
}

.field span {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
}

.field input {
  width: 100%;
  padding: 10px 12px;
  font-size: 15px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
}

.field select {
  width: 100%;
  padding: 10px 12px;
  font-size: 15px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
}

.field input:focus {
  outline: 2px solid var(--primary);
  outline-offset: 1px;
  border-color: var(--primary);
}

.field select:focus {
  outline: 2px solid var(--primary);
  outline-offset: 1px;
  border-color: var(--primary);
}

.login-card .field input,
.login-card .field select,
.student-shell .field input,
.student-shell .field select {
  min-height: 48px;
  box-sizing: border-box;
}

.login-card .btn {
  min-height: 48px;
}

.error {
  color: var(--danger);
  font-size: 14px;
  margin: 0 0 12px;
  text-align: center;
}

/* ================= Uygulama düzeni ================= */
.app {
  min-height: 100vh;
  display: flex;
}

/* ---------- Sidebar ---------- */
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-brand {
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
}

.brand-mark {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--primary);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 10px;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 10px 12px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition:
    background-color 0.15s ease,
    color 0.15s ease;
}

.nav-item:hover {
  background: var(--bg);
}

.nav-item.active {
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 600;
}

.nav-icon {
  width: 20px;
  text-align: center;
  font-size: 16px;
  flex-shrink: 0;
}

.nav-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---------- Topbar ---------- */
.app-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.topbar {
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar-context {
  flex: 1;
  min-width: 0;
}

.tenant-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: block;
}

.topbar-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-chip {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 700;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.user-meta {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.user-name {
  font-size: 14px;
  font-weight: 600;
}

.user-role {
  font-size: 12px;
  color: var(--muted);
}

/* ---------- İçerik ---------- */
.page {
  padding: 24px;
  flex: 1;
}

.page-view {
  max-width: 1080px;
  margin: 0 auto;
}

.page-head {
  margin-bottom: 20px;
}

.student-content-view {
  margin: 8px 0 24px;
}
.student-section-intro {
  padding: 8px 4px 16px;
}
.student-section-intro h3 {
  margin: 4px 0 6px;
  font-size: clamp(1.35rem, 3vw, 1.8rem);
}
.assessment-intro {
  background: linear-gradient(135deg, #eff6ff, #fff);
  border-radius: 20px;
  padding: 20px;
  margin-bottom: 18px;
}
.learning-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}
.learning-card {
  display: flex;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--surface);
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.08);
  min-width: 0;
}
.learning-card-icon {
  flex: 0 0 52px;
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: #dbeafe;
  font-size: 26px;
}
.assessment-icon {
  background: #fef3c7;
}
.learning-card-content {
  min-width: 0;
  flex: 1;
}
.learning-card-topline,
.student-progress-label,
.learning-card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.learning-card h3 {
  margin: 12px 0 6px;
  line-height: 1.25;
  overflow-wrap: anywhere;
}
.learning-card-actions {
  justify-content: flex-start;
  margin-top: 16px;
  flex-wrap: wrap;
}
.student-progress-label {
  font-size: 12px;
  margin: 14px 0 6px;
  color: var(--muted);
}
.assessment-meta,
.assessment-result-line {
  font-size: 13px;
  margin: 10px 0 0;
}
.assessment-result-line {
  color: #166534;
  font-weight: 600;
}
.empty-learning-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 44px 20px;
  border: 1px dashed var(--border);
  border-radius: 20px;
  background: #fff;
}
.empty-learning-state .btn {
  min-height: 48px;
}
.empty-learning-state > div {
  font-size: 36px;
  margin-bottom: 10px;
}
.assessment-detail-hero {
  display: flex;
  gap: 16px;
  align-items: center;
  padding: 12px 0 20px;
}
.assessment-detail-hero h4 {
  margin: 4px 0;
  font-size: 20px;
}

@media (max-width: 600px) {
  .learning-card-grid {
    grid-template-columns: 1fr;
  }
  .learning-card {
    padding: 16px;
    gap: 12px;
  }
  .learning-card-icon {
    flex-basis: 44px;
    width: 44px;
    height: 44px;
    font-size: 22px;
  }
  .learning-card-actions .btn {
    min-height: 48px;
    flex: 1;
  }
}

.page-head h2 {
  margin: 0 0 4px;
  font-size: 24px;
  letter-spacing: -0.01em;
}

.page-head p {
  margin: 0;
}

/* ---------- Dashboard stat kartları ---------- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stat-label {
  font-size: 13px;
  color: var(--muted);
  font-weight: 500;
}

.stat-value {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

/* ---------- Placeholder / yakında ---------- */
.coming-soon {
  padding: 48px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.coming-soon-icon {
  font-size: 40px;
}

.coming-soon h3 {
  margin: 4px 0 0;
  font-size: 18px;
}

.coming-soon p {
  margin: 0;
  color: var(--muted);
  max-width: 420px;
}

.placeholder-note {
  padding: 14px 16px;
  font-size: 14px;
  color: var(--muted);
}

/* ---------- Kurumlar ---------- */
.tenant-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.tenant-filters {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.inline-field {
  margin-bottom: 0;
}

.inline-field input,
.inline-field select {
  width: auto;
  min-width: 220px;
}

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

.table-card {
  overflow-x: auto;
}

.table-wrap {
  overflow-x: auto;
}

.table-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  padding: 12px 14px;
  border-top: 1px solid var(--border);
  font-size: 14px;
}

.table-footer .muted {
  margin: 0 4px;
}

.error-banner {
  background: #fdecea;
  color: #c5221f;
  border: 1px solid #f5c6c4;
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 14px;
  font-size: 14px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 14px;
}

@media (max-width: 600px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--bg);
  border: 1px solid var(--border);
  font-size: 13px;
  font-weight: 500;
}

.chip .chip-remove {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  color: var(--muted);
  font-size: 14px;
  line-height: 1;
}

.chip .chip-remove:hover {
  color: var(--danger);
}

.chip-info {
  background: #e8f0fe;
  border-color: #c6d8fb;
  color: #1a56db;
}

.version-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.version-row-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 13px;
}

.version-row-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.version-body-view {
  white-space: pre-wrap;
  line-height: 1.6;
  padding: 14px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  max-height: 40vh;
  overflow-y: auto;
  font-size: 14px;
}

.scope-badge-global {
  background: #e8f0fe;
  color: #1a56db;
}

.scope-badge-tenant {
  background: #f0f7e9;
  color: #2f6b1e;
}

.content-type-icon {
  margin-right: 4px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table th,
.data-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.data-table th {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: var(--bg);
}

.data-table tr:last-child td {
  border-bottom: none;
}

.empty-cell {
  text-align: center;
  color: var(--muted);
  padding: 32px 14px !important;
}

.cell-muted {
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}

.link-btn {
  background: none;
  border: none;
  padding: 0;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
}

.link-btn:hover {
  text-decoration: underline;
}

.text-right {
  text-align: right !important;
}

.numeric {
  text-align: right;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.5;
}

.badge-success {
  background: #e7f6ec;
  color: #137333;
}

.badge-warning {
  background: #fef7e0;
  color: #b06000;
}

.badge-danger {
  background: #fdecea;
  color: #c5221f;
}

.badge-neutral {
  background: #eef0f3;
  color: #475467;
}

.badge-info {
  background: #e8f0fe;
  color: #1a56db;
}

.gamification-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 18px;
}

.gamification-stat {
  display: grid;
  gap: 6px;
  text-align: center;
}

.gamification-stat-icon {
  font-size: 28px;
}

.gamification-stat strong {
  font-size: 26px;
  color: var(--text);
}

.gamification-section {
  margin-bottom: 18px;
}

.gamification-section h3 {
  margin-top: 0;
}

.gamification-badges {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.gamification-badge {
  display: flex;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
}

.gamification-badge-icon {
  font-size: 30px;
}

.gamification-badge p {
  margin: 4px 0;
  color: var(--muted);
}

.gamification-badge small {
  color: var(--muted);
}

.gamification-points {
  color: #137333;
  font-weight: 700;
}

@media (max-width: 720px) {
  .gamification-summary {
    grid-template-columns: 1fr;
  }
}

.tenant-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  font-size: 14px;
  flex-wrap: wrap;
}

.pagination-actions {
  display: flex;
  gap: 8px;
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.btn-danger:hover:not(:disabled) {
  background: #b91c1c;
}

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(16, 24, 40, 0.45);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 32px 16px;
  overflow-y: auto;
  z-index: 30;
}

.modal {
  width: 100%;
  max-width: 480px;
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: 0 12px 32px rgba(16, 24, 40, 0.18);
  padding: 20px;
}

.modal-wide {
  max-width: 760px;
}

.fieldset-group {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px 4px;
  margin: 0 0 14px;
}

.fieldset-group legend {
  padding: 0 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}

.field-hint {
  font-size: 12px;
  margin-top: -6px;
  margin-bottom: 10px;
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.modal-head h3 {
  margin: 0;
  font-size: 18px;
}

.modal-body {
  font-size: 14px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 18px;
}

.detail-status-row {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

/* ---------- Bilgi ızgarası / detay bölümleri ---------- */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px 16px;
  margin: 0;
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px 10px;
  background: var(--bg);
  border-radius: var(--radius-sm);
}

.info-item dt {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
}

.info-item dd {
  margin: 0;
  font-size: 14px;
}

.detail-section {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.detail-section:first-of-type {
  border-top: none;
  padding-top: 0;
}

.detail-section h4 {
  margin: 0 0 10px;
  font-size: 15px;
}

.enrollment-add-row {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.enrollment-add-row .field {
  flex: 1;
  min-width: 180px;
}

.enrollment-add-row .field select {
  width: 100%;
}

.enr-status-select {
  width: auto;
  min-width: 130px;
  margin-right: 8px;
}

/* ---------- Kullanıcılar / üyelikler ---------- */
.membership-section {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.membership-section h4 {
  margin: 0 0 10px;
  font-size: 15px;
}

.membership-add-row {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.membership-add-row .field {
  flex: 1;
  min-width: 150px;
}

.membership-add-row .field select {
  width: 100%;
}

.membership-table td {
  vertical-align: middle;
}

.membership-row-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.membership-row-actions select {
  width: auto;
  min-width: 130px;
}

.mem-status-cell {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.mem-status-cell select {
  width: auto;
  min-width: 110px;
}

/* ---------- Mobil menü ---------- */
#sidebar-toggle {
  display: none;
}

.sidebar-backdrop {
  display: none;
}

/* ================= Responsive ================= */
@media (max-width: 900px) {
  #sidebar-toggle {
    display: inline-flex;
  }

  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    z-index: 20;
    transform: translateX(-100%);
    transition: transform 0.2s ease;
    box-shadow: 0 0 24px rgba(16, 24, 40, 0.14);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(16, 24, 40, 0.4);
    z-index: 15;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
  }

  .sidebar-backdrop.open {
    opacity: 1;
    pointer-events: auto;
  }
}

@media (max-width: 600px) {
  .page {
    padding: 16px;
  }

  .topbar {
    padding: 0 12px;
  }

  .user-meta {
    display: none;
  }

  .stat-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .stat-value {
    font-size: 22px;
  }
}

/* ================= Student Shell ================= */
.student-bottom-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: 64px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: 6px 0 calc(6px + env(safe-area-inset-bottom));
  z-index: 25;
}

.student-bottom-nav.hidden {
  display: none !important;
}

.bottom-nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  min-height: 48px;
  min-width: 48px;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition:
    color 0.15s ease,
    background-color 0.15s ease;
}

.bottom-nav-item:hover {
  color: var(--text);
  background: var(--bg);
}

.bottom-nav-item.active {
  color: var(--primary);
  background: var(--primary-soft);
}

.bottom-nav-icon {
  font-size: 18px;
  line-height: 1;
}

.bottom-nav-label {
  font-size: 11px;
}

.topbar-gamification {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-left: 12px;
}

.topbar-gamification.hidden {
  display: none !important;
}

.gamification-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
}

.context-switcher {
  margin-left: 10px;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  background: var(--surface);
}

.student-shell .context-switcher {
  min-height: 48px;
  box-sizing: border-box;
}

.student-shell #logout-btn {
  min-height: 48px;
}

.student-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px 20px;
  box-shadow: var(--shadow);
}

@media (max-width: 768px) {
  .student-shell .app-main {
    padding-bottom: 64px;
  }

  .student-shell .sidebar {
    display: none !important;
  }

  .student-shell .sidebar-backdrop {
    display: none !important;
  }

  #sidebar-toggle {
    display: none !important;
  }
}

@media (min-width: 769px) {
  .student-shell .student-bottom-nav {
    display: none !important;
  }
}

/* ================= Learning Path ================= */
.learning-path {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  padding: 12px 0 8px;
  position: relative;
}

.learning-path::before {
  content: "";
  position: absolute;
  top: 24px;
  bottom: 24px;
  width: 4px;
  background: var(--border);
  border-radius: 2px;
  z-index: 0;
}

.path-node {
  position: relative;
  z-index: 1;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  border: 3px solid var(--border);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease,
    background-color 0.15s ease;
  margin: 10px 0;
}

.path-node:nth-child(even) {
  transform: translateX(18px);
}

.path-node:nth-child(odd) {
  transform: translateX(-18px);
}

.path-node.completed {
  background: #e7f6ec;
  border-color: #137333;
  color: #137333;
}

.path-node.active {
  background: var(--primary);
  border-color: var(--primary-hover);
  color: #fff;
  width: 84px;
  height: 84px;
  font-size: 26px;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.32);
  animation: pathPulse 2s ease-in-out infinite;
}

.path-node.available {
  background: var(--surface);
  border-color: var(--primary);
  color: var(--primary);
}

.path-node.locked {
  background: var(--bg);
  border-color: var(--border);
  color: var(--muted);
  cursor: not-allowed;
  opacity: 0.85;
}

.path-node:hover:not(.locked) {
  transform: translateX(var(--tx, 0)) scale(1.04);
  box-shadow: 0 6px 18px rgba(16, 24, 40, 0.12);
}

.path-node:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

.path-node-label {
  position: absolute;
  top: 100%;
  margin-top: 6px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  background: var(--surface);
  padding: 2px 6px;
  border-radius: 999px;
  border: 1px solid var(--border);
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
}

@keyframes pathPulse {
  0%,
  100% {
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.32);
  }
  50% {
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
  }
}

@media (max-width: 768px) {
  .learning-path::before {
    width: 3px;
  }
  .path-node {
    width: 64px;
    height: 64px;
    font-size: 20px;
  }
  .path-node.active {
    width: 76px;
    height: 76px;
  }
  .path-node:nth-child(even) {
    transform: translateX(14px);
  }
  .path-node:nth-child(odd) {
    transform: translateX(-14px);
  }
}

/* ================= Exercise Student ================= */
.student-exercise-header {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 12px 16px;
  margin-bottom: 16px;
}

.progress-track {
  height: 8px;
  background: var(--border);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 6px;
}

.progress-fill {
  height: 100%;
  width: 0;
  background: var(--primary);
  border-radius: 999px;
  transition: width 0.3s ease;
}

.answer-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  min-height: 56px;
  border: 2px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  transition:
    border-color 0.15s ease,
    background-color 0.15s ease,
    transform 0.1s ease;
}

.answer-card:hover {
  border-color: var(--primary);
  background: var(--primary-soft);
}

.answer-card.selected {
  border-color: var(--primary);
  background: var(--primary-soft);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.15);
}

.answer-card.correct {
  border-color: #137333;
  background: #e7f6ec;
  color: #137333;
}

.answer-card.wrong {
  border-color: #c5221f;
  background: #fdecea;
  color: #c5221f;
}

.answer-card input {
  display: none;
}

.feedback-panel {
  padding: 16px;
  border-radius: 16px;
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.feedback-panel.correct {
  background: #e7f6ec;
  border: 2px solid #137333;
  color: #137333;
}

.feedback-panel.wrong {
  background: #fdecea;
  border: 2px solid #c5221f;
  color: #c5221f;
}

.feedback-panel.pending {
  background: #fef7e0;
  border: 2px solid #b06000;
  color: #b06000;
}

.student-exercise-content {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  margin-bottom: 12px;
  line-height: 1.6;
  max-height: 40vh;
  overflow-y: auto;
}

.student-reading-card {
  border-color: color-mix(in srgb, var(--primary) 24%, var(--border));
  background: linear-gradient(180deg, var(--primary-soft) 0%, var(--surface) 42%);
}

.reading-card-kicker {
  color: var(--primary);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.student-reading-body {
  color: var(--text);
  font-size: 16px;
  line-height: 1.8;
  overflow-wrap: anywhere;
}

.student-reading-body p {
  margin: 0 0 14px;
}

.student-reading-body p:last-child {
  margin-bottom: 0;
}

.exercise-hint {
  margin: 0 0 12px;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  font-size: 14px;
}

.exercise-hint summary,
.exercise-explanation summary {
  display: flex;
  align-items: center;
  min-height: 48px;
  box-sizing: border-box;
  padding: 4px 0;
  color: var(--primary);
  cursor: pointer;
  font-weight: 700;
}

.exercise-hint summary::-webkit-details-marker,
.exercise-explanation summary::-webkit-details-marker {
  display: none;
}

.exercise-hint summary::before,
.exercise-explanation summary::before {
  content: "›";
  display: inline-block;
  margin-right: 8px;
  font-size: 20px;
  line-height: 1;
  transform: rotate(0deg);
  transition: transform 0.15s ease;
}

.exercise-hint[open] summary::before,
.exercise-explanation[open] summary::before {
  transform: rotate(90deg);
}

.exercise-hint summary:focus-visible,
.exercise-explanation summary:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 3px;
  border-radius: 6px;
}

.exercise-hint p,
.exercise-explanation p {
  margin: 8px 0 0;
  line-height: 1.6;
}

.exercise-explanation {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid currentColor;
  line-height: 1.6;
}

.completion-card {
  text-align: center;
  padding: 32px 20px;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--primary-soft) 0%, var(--surface) 100%);
}

@media (prefers-reduced-motion: reduce) {
  .btn,
  .nav-item,
  .bottom-nav-item {
    transition: none;
  }

  .path-node.active {
    animation: none;
  }

  .progress-fill,
  .answer-card {
    transition: none;
  }
}

/* 8F-3: exercise-only layout and feedback. */
.student-shell #page-exercise {
  width: 100%;
  max-width: 760px;
  margin-inline: auto;
  padding-bottom: 24px;
}
.student-shell #page-exercise > .page-head p,
.student-shell #exercise-questions-card > div:first-child {
  display: none !important;
}
#page-exercise {
  overflow-wrap: anywhere;
}
#page-exercise .field,
#page-exercise .field input,
#page-exercise .field select,
#page-exercise textarea {
  min-width: 0;
  width: 100%;
  box-sizing: border-box;
  font-size: 16px;
}
#page-exercise textarea {
  resize: vertical;
  scroll-margin-bottom: 100px;
}
#page-exercise .btn {
  min-height: 48px;
}
#exercise-back-btn {
  min-width: 48px;
}
#exercise-submit-attempt {
  width: 100%;
  min-height: 52px;
}
.exercise-actions {
  margin-top: 16px;
}
#page-exercise :focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 3px;
}
#page-exercise label.answer-card::after {
  content: "○";
  margin-left: auto;
  flex-shrink: 0;
}
#page-exercise label.answer-card.selected::after {
  content: "✓";
  font-weight: 800;
}
#page-exercise label.answer-card[aria-disabled="true"] {
  cursor: default;
}
#exercise-current-question > * {
  animation: exercise-enter 180ms ease-out;
}
#page-exercise .feedback-panel.correct {
  animation: exercise-correct 180ms ease-out;
}
#page-exercise .feedback-panel.wrong {
  animation: exercise-wrong 180ms ease-out;
}
#exercise-result-body {
  display: block;
}
.exercise-result-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.exercise-result-stats > div {
  padding: 12px;
  background: var(--surface);
  border-radius: 12px;
}
.exercise-result-stats dt {
  font-size: 14px;
}
.exercise-result-stats dd {
  margin: 4px 0 0;
  font-size: 22px;
  font-weight: 700;
}
@keyframes exercise-enter {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes exercise-correct {
  from {
    opacity: 0.6;
    transform: scale(0.97);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}
@keyframes exercise-wrong {
  25% {
    transform: translateX(-4px);
  }
  75% {
    transform: translateX(4px);
  }
}
@media (max-width: 600px) {
  .student-shell #page-exercise {
    padding-bottom: 32px;
  }
  #page-exercise .completion-card {
    padding: 20px 8px;
  }
}
@media (prefers-reduced-motion: reduce) {
  #page-exercise *,
  #page-exercise *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

@media (min-width: 700px) {
  .exercise-result-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  #page-exercise .completion-card {
    padding: 20px 16px;
  }
}

/* 8F-4: student progress and earned rewards */
.insight-page {
  max-width: 1080px;
  margin-inline: auto;
}
.insight-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
}
.insight-heading h2 {
  margin: 4px 0 8px;
  font-size: clamp(26px, 4vw, 36px);
  letter-spacing: -0.7px;
}
.insight-heading p {
  color: #526078;
  margin: 6px 0;
}
.insight-eyebrow {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1.5px;
  color: #4458ad;
}
.insight-page .btn,
.insight-home .btn,
#badge-detail .btn {
  min-height: 48px;
  white-space: normal;
}
.insight-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 22px;
}
.insight-stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  border: 1px solid #dde5ef;
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 3px 0 #e5eaf2;
  min-width: 0;
}
.insight-stat > span:first-child {
  font-size: 28px;
}
.insight-stat > span:nth-child(2) {
  font-size: 13px;
  color: #46536a;
}
.insight-stat strong {
  font-size: 30px;
  color: #172947;
  line-height: 1.2;
  overflow-wrap: anywhere;
}
.insight-gold {
  background: #fff9e7;
  border-color: #eedda6;
  box-shadow: 0 3px 0 #f0e3bd;
}
.insight-orange {
  background: #fff1e8;
  border-color: #efcdb8;
  box-shadow: 0 3px 0 #f1d9c9;
}
.insight-purple {
  background: #f3f0ff;
  border-color: #d9d0f2;
  box-shadow: 0 3px 0 #e3dcf4;
}
.insight-panel {
  border: 1px solid #dfe5ef;
  border-radius: 20px;
  padding: 22px;
  background: #fff;
  box-shadow: 0 4px 12px #23395708;
  margin-bottom: 20px;
  min-width: 0;
}
.insight-panel h3 {
  margin: 0 0 14px;
  font-size: 18px;
}
.insight-path {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: #eef6ff;
  border-color: #ccdef4;
}
.insight-path > div {
  flex: 1;
}
.insight-path .insight-eyebrow {
  margin-top: 0;
}
.insight-columns {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 24px;
}
.insight-columns h3 {
  margin-top: 0;
}
.insight-skills {
  display: grid;
  gap: 16px;
}
.skill-progress-card {
  margin: 0;
}
.skill-title {
  display: flex;
  align-items: center;
  gap: 10px;
}
.skill-title h4 {
  flex: 1;
  font-size: 17px;
  margin: 0;
  overflow-wrap: anywhere;
}
.skill-title > span {
  font-size: 25px;
}
.skill-accuracy {
  font-size: 22px;
  color: #304fa8;
}
.skill-period {
  font-size: 12px;
}
.insight-bar {
  height: 12px;
  border-radius: 12px;
  background: #e7edf5;
  overflow: hidden;
  margin: 16px 0;
}
.insight-bar > span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #4672e5, #29a596);
  animation: insight-fill 180ms ease-out;
  transform-origin: left;
}
.insight-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 18px 0 0;
}
.insight-facts dt {
  color: #526078;
  font-size: 12px;
}
.insight-facts dd {
  font-size: 21px;
  font-weight: 750;
  margin: 6px 0 0;
  color: #243655;
}
.skill-time {
  border-top: 1px solid #edf0f6;
  padding-top: 14px;
  margin: 16px 0 0;
  font-size: 13px;
  color: #46536a;
}
.insight-activity {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid #e8edf4;
  min-width: 0;
}
.insight-activity:last-child {
  border-bottom: 0;
}
.insight-activity > span {
  font-size: 25px;
  background: #f2f5fb;
  border-radius: 14px;
  padding: 9px;
}
.insight-activity > div {
  flex: 1;
  min-width: 0;
}
.insight-activity h4 {
  margin: 0 0 6px;
  font-size: 14px;
  overflow-wrap: anywhere;
}
.insight-activity p,
.insight-activity time {
  font-size: 12px;
  color: #526078;
  margin: 4px 0;
}
.insight-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 14px;
  font-size: 12px;
}
.insight-empty {
  text-align: center;
  background: #f7f9fd;
  border: 1px dashed #cbd7e9;
  border-radius: 20px;
  padding: 28px 20px;
  grid-column: 1 / -1;
}
.insight-empty > span {
  font-size: 36px;
}
.insight-empty p {
  color: #526078;
  line-height: 1.6;
}
#page-badges .gamification-summary {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.insight-streak {
  display: flex;
  align-items: center;
  gap: 20px;
  background: linear-gradient(115deg, #fff5ed, #fff);
}
.insight-streak h3 {
  margin-bottom: 8px;
}
.insight-streak p {
  margin: 6px 0;
}
.insight-flame {
  font-size: 50px;
}
#page-badges .gamification-badges {
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
}
#page-badges .gamification-badge {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 12px;
  min-height: 170px;
  border: 1px solid #ded7f4;
  border-radius: 20px;
  background: linear-gradient(#faf8ff, #fff);
  padding: 20px;
  cursor: pointer;
  color: #263451;
  font: inherit;
}
#page-badges .gamification-badge-icon {
  display: grid;
  place-items: center;
  width: 62px;
  height: 62px;
  border-radius: 50%;
  background: #f0eaff;
  font-size: 34px;
}
#page-badges .gamification-badge:hover {
  border-color: #8270c4;
  background: #f4f0ff;
}
#page-badges .gamification-points {
  white-space: nowrap;
  font-size: 15px;
  color: #176749;
}
.badge-new {
  animation: insight-pop 180ms ease-out;
  box-shadow: 0 0 0 3px #d9ccff;
}
.badge-new-label {
  font-size: 11px;
  font-weight: 800;
  color: #57388f;
}
.insight-celebration {
  color: #57388f;
  font-weight: 700;
}
.insight-celebration:empty {
  display: none;
}
#badge-detail {
  border: 1px solid #d9d0f2;
  border-radius: 24px;
  width: min(440px, calc(100vw - 32px));
  max-height: 80dvh;
  overflow: auto;
  padding: 28px;
  color: #243655;
  box-sizing: border-box;
  box-shadow: 0 20px 70px #14234838;
}
#badge-detail::backdrop {
  background: #15233b80;
}
.badge-detail-content {
  text-align: center;
  overflow-wrap: anywhere;
}
#badge-detail-icon {
  font-size: 56px;
}
#badge-detail-source {
  font-size: 12px;
}
#badge-detail-close {
  width: 100%;
  margin-top: 14px;
}
.insight-home {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 18px;
  background: #eef3ff;
  border: 1px solid #d7e1fa;
  border-radius: 18px;
  margin-top: 16px;
}
#home-insights-values {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 14px;
}
.insight-page :is(button, [tabindex]):focus-visible,
#badge-detail button:focus-visible,
.insight-home button:focus-visible {
  outline: 3px solid #285de1;
  outline-offset: 4px;
}
.insight-page [aria-busy="true"] {
  opacity: 0.7;
}
@keyframes insight-fill {
  from {
    transform: scaleX(0);
    opacity: 0.6;
  }
  to {
    transform: scaleX(1);
    opacity: 1;
  }
}
@keyframes insight-pop {
  from {
    transform: scale(0.94);
    opacity: 0.5;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}
@media (max-width: 700px) {
  .insight-heading {
    align-items: flex-start;
    gap: 12px;
  }
  .insight-heading > div {
    min-width: 0;
  }
  .insight-heading p {
    font-size: 13px;
  }
  .insight-heading .insight-eyebrow {
    font-size: 9px;
  }
  .insight-heading .btn {
    padding-inline: 12px;
  }
  .insight-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }
  .insight-stat {
    padding: 16px;
  }
  .insight-stat strong {
    font-size: 27px;
  }
  .insight-columns {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .insight-panel {
    padding: 18px;
  }
  .insight-path {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
  .insight-home .btn {
    width: 100%;
  }
  #page-badges .gamification-summary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  #page-badges .gamification-summary > :last-child {
    grid-column: 1 / -1;
  }
  #page-badges .gamification-badges {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }
  #page-badges .gamification-badge {
    padding: 14px 10px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .insight-page *,
  .insight-home * {
    animation: none !important;
    transition: none !important;
  }
}
.insight-stat strong {
  animation: insight-pop 180ms ease-out;
}
@media (prefers-reduced-motion: reduce) {
  .insight-stat strong {
    animation: none;
  }
}

/* 8F-7: lightweight, user-triggered reward feedback. */
.celebration-layer {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 20px;
  pointer-events: none;
}
.celebration-toast {
  position: relative;
  width: min(360px, 100%);
  padding: 28px 24px 24px;
  border: 2px solid #bfdbfe;
  border-radius: 24px;
  background: var(--surface);
  box-shadow: 0 18px 70px rgba(37, 99, 235, 0.22);
  text-align: center;
  pointer-events: auto;
  animation: celebration-in 180ms ease-out;
}
.celebration-layer[data-kind="wrong"] .celebration-toast {
  border-color: #fde68a;
}
.celebration-layer[data-kind="badge"] .celebration-toast {
  border-color: #d8b4fe;
}
.celebration-close {
  position: absolute;
  top: 8px;
  right: 10px;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--muted);
  font-size: 26px;
  cursor: pointer;
}
.celebration-icon {
  display: grid;
  place-items: center;
  width: 70px;
  height: 70px;
  margin: 0 auto 12px;
  border-radius: 22px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 42px;
  font-weight: 800;
}
.celebration-major .celebration-icon {
  width: 94px;
  height: 94px;
  border-radius: 30px;
  background: #fff7df;
  font-size: 56px;
}
.celebration-eyebrow {
  margin: 0 0 5px;
  color: var(--primary);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
}
.celebration-layer[data-kind="wrong"] .celebration-eyebrow {
  color: #a16207;
}
.celebration-toast h2 {
  margin: 0 0 6px;
  font-size: 25px;
  letter-spacing: -0.03em;
}
.celebration-detail {
  margin: 0;
  color: var(--muted);
}
.celebration-reward {
  min-height: 24px;
  margin-top: 14px;
  color: #166534;
  font-size: 16px;
  font-weight: 800;
}
.celebration-particles {
  position: absolute;
  inset: 50% 50%;
  pointer-events: none;
}
.celebration-particles span {
  position: absolute;
  width: 9px;
  height: 14px;
  border-radius: 3px;
  background: #f59e0b;
  animation: celebration-particle 850ms ease-out var(--particle-delay) both;
}
.celebration-particles span:nth-child(3n) {
  background: #2563eb;
}
.celebration-particles span:nth-child(3n + 1) {
  background: #8b5cf6;
}
@keyframes celebration-in {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}
@keyframes celebration-particle {
  from {
    opacity: 1;
    transform: translate(0, 0) rotate(0);
  }
  to {
    opacity: 0;
    transform: translate(var(--particle-x), var(--particle-y)) rotate(180deg);
  }
}
.settings-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px;
}
.settings-card h3 {
  margin: 0 0 5px;
}
.settings-card p {
  margin: 0 0 14px;
}
.settings-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  font-weight: 700;
  cursor: pointer;
}
.settings-toggle input {
  width: 20px;
  height: 20px;
  accent-color: var(--primary);
}
@media (max-width: 600px) {
  .celebration-layer {
    padding: 16px;
  }
  .celebration-toast {
    padding: 24px 18px 20px;
  }
  .settings-card {
    padding: 18px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .celebration-toast,
  .celebration-particles span {
    animation: none !important;
  }
}