:root {
  --edu-surface: rgba(255, 255, 255, 0.78);
  --edu-surface-strong: #ffffff;
  --edu-border: var(--stroke);
  --edu-shadow: 0 18px 42px rgba(32, 24, 12, 0.12);
  --edu-accent: var(--accent);
  --edu-accent-soft: rgba(181, 107, 42, 0.12);
  --edu-success: #2e7d52;
  --edu-danger: #aa3a30;
  --edu-warning: #b56b2a;
}

body.edu-page {
  background:
    radial-gradient(circle at 15% 0%, rgba(181, 107, 42, 0.16) 0%, transparent 44%),
    radial-gradient(circle at 85% 20%, rgba(111, 124, 105, 0.15) 0%, transparent 42%),
    linear-gradient(160deg, #f7f1e8 0%, #efe2d2 48%, #f8f3eb 100%);
}

.edu-main {
  padding: clamp(32px, 5vw, 62px) 0 clamp(50px, 7vw, 86px);
}

.edu-section + .edu-section {
  margin-top: clamp(18px, 3vw, 36px);
}

.edu-hero {
  border: 1px solid var(--edu-border);
  border-radius: 22px;
  background: var(--edu-surface);
  box-shadow: var(--edu-shadow);
  padding: clamp(22px, 4vw, 42px);
}

.edu-eyebrow {
  margin: 0;
  color: var(--sage);
  text-transform: uppercase;
  letter-spacing: 1.8px;
  font-size: 12px;
  font-weight: 700;
}

.edu-hero h1,
.edu-section-head h2,
.edu-card h3 {
  font-family: "Fraunces", "Times New Roman", serif;
  line-height: 1.15;
}

.edu-hero h1 {
  margin: 12px 0;
  font-size: clamp(30px, 4vw, 46px);
}

.edu-lead {
  margin: 0;
  color: var(--muted);
  line-height: 1.68;
  font-size: clamp(16px, 2vw, 19px);
  max-width: 74ch;
}

.edu-inline-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.edu-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1px solid var(--edu-border);
  border-radius: 999px;
  padding: 8px 13px;
  font-size: 13px;
  color: var(--muted);
  font-weight: 600;
}

.edu-actions {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.edu-section-head {
  margin-bottom: 14px;
}

.edu-section-head h2 {
  margin: 8px 0;
  font-size: clamp(26px, 3vw, 36px);
}

.edu-section-head p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.edu-module-grid {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.edu-card {
  border: 1px solid var(--edu-border);
  border-radius: 18px;
  background: var(--edu-surface-strong);
  box-shadow: 0 14px 30px rgba(32, 24, 12, 0.09);
  padding: 20px;
  display: grid;
  gap: 12px;
  align-content: start;
}

.edu-card h3 {
  margin: 0;
  font-size: 24px;
}

.edu-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.62;
}

.edu-card.is-placeholder {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(239, 229, 216, 0.82));
}

.edu-card-note {
  font-size: 14px;
  color: var(--muted);
  border-left: 3px solid rgba(181, 107, 42, 0.35);
  padding-left: 10px;
}

.edu-subtle-box {
  border: 1px solid var(--edu-border);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.65);
  padding: 16px;
}

.edu-subtle-box p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.edu-subtle-box p + p {
  margin-top: 8px;
}

.edu-back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-weight: 600;
}

.edu-back-link:hover,
.edu-back-link:focus-visible {
  color: var(--accent-dark);
}

.edu-link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.edu-link-list a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (max-width: 920px) {
  .edu-main {
    padding-top: 26px;
  }

  .edu-card h3 {
    font-size: 21px;
  }
}

@media (max-width: 640px) {
  .edu-hero {
    border-radius: 18px;
    padding: 18px;
  }

  .edu-actions .btn {
    width: 100%;
    min-height: 46px;
  }
}

.edu-app-shell {
  border: 1px solid var(--edu-border);
  border-radius: 20px;
  background: var(--edu-surface);
  box-shadow: var(--edu-shadow);
  padding: clamp(14px, 2vw, 20px);
}

.edu-app-head {
  display: grid;
  gap: 12px;
}

.edu-app-head h2 {
  margin: 0;
  font-family: "Fraunces", "Times New Roman", serif;
  font-size: clamp(24px, 3.2vw, 32px);
}

.edu-app-head p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.edu-kpi-row {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
}

.edu-kpi {
  border: 1px solid var(--edu-border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.86);
  padding: 10px 12px;
}

.edu-kpi-label {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.edu-kpi-value {
  margin: 4px 0 0;
  color: var(--ink);
  font-size: clamp(18px, 2.5vw, 24px);
  font-weight: 800;
}

.edu-progress {
  border: 1px solid var(--edu-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.85);
  overflow: hidden;
}

.edu-progress-bar {
  height: 10px;
  width: 0;
  background: linear-gradient(90deg, var(--edu-accent), #d38b49);
  transition: width 0.25s ease;
}

.edu-tabs {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.edu-tab {
  border: 1px solid var(--edu-border);
  border-radius: 999px;
  background: #fff;
  color: var(--muted);
  padding: 8px 12px;
  font-weight: 700;
  cursor: pointer;
}

.edu-tab[aria-selected="true"] {
  border-color: rgba(181, 107, 42, 0.45);
  background: rgba(181, 107, 42, 0.14);
  color: var(--ink);
}

.edu-panel {
  margin-top: 14px;
  border: 1px solid var(--edu-border);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 12px 26px rgba(32, 24, 12, 0.08);
  padding: clamp(12px, 2vw, 16px);
}

.edu-panel h3 {
  margin: 0 0 10px;
  font-family: "Fraunces", "Times New Roman", serif;
  font-size: clamp(20px, 2.8vw, 28px);
}

.edu-panel p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.edu-panel p + p {
  margin-top: 8px;
}

.edu-actions-inline {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.edu-btn {
  border: 1px solid var(--edu-border);
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
  padding: 10px 13px;
  font-weight: 700;
  cursor: pointer;
}

.edu-btn:hover,
.edu-btn:focus-visible {
  background: #f9f3ea;
}

.edu-btn-primary {
  background: var(--edu-accent);
  border-color: var(--accent-dark);
  color: #fff;
}

.edu-btn-primary:hover,
.edu-btn-primary:focus-visible {
  background: var(--accent-dark);
}

.edu-btn-good {
  border-color: rgba(46, 125, 82, 0.35);
  background: rgba(46, 125, 82, 0.1);
}

.edu-btn-warn {
  border-color: rgba(181, 107, 42, 0.4);
  background: rgba(181, 107, 42, 0.13);
}

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

.edu-choice-grid {
  margin-top: 12px;
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.edu-choice {
  border: 1px solid var(--edu-border);
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
  text-align: left;
  padding: 10px 11px;
  font-weight: 700;
  cursor: pointer;
}

.edu-choice:hover,
.edu-choice:focus-visible {
  background: #f9f3ea;
}

.edu-choice.is-correct {
  background: rgba(46, 125, 82, 0.15);
  border-color: rgba(46, 125, 82, 0.45);
}

.edu-choice.is-wrong {
  background: rgba(170, 58, 48, 0.12);
  border-color: rgba(170, 58, 48, 0.45);
}

.edu-feedback {
  margin-top: 10px;
  border: 1px solid var(--edu-border);
  border-radius: 12px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.86);
  color: var(--muted);
  line-height: 1.55;
}

.edu-feedback.is-good {
  border-color: rgba(46, 125, 82, 0.38);
  background: rgba(46, 125, 82, 0.1);
  color: #214735;
}

.edu-feedback.is-bad {
  border-color: rgba(170, 58, 48, 0.36);
  background: rgba(170, 58, 48, 0.1);
  color: #712c25;
}

.edu-note {
  margin-top: 10px;
  font-size: 13px;
  color: var(--muted);
}

@media (max-width: 640px) {
  .edu-choice-grid {
    grid-template-columns: 1fr;
  }

  .edu-actions-inline .edu-btn {
    width: 100%;
    min-height: 44px;
  }
}