.learn-catalogue {
  max-width: 1140px;
  padding: 72px 24px 80px;
}

.learn-catalogue h1 {
  font-size: clamp(2rem, 5vw, 2.8rem);
  margin: 10px 0 12px;
  letter-spacing: -0.03em;
}


.learn-gate {
  max-width: 640px;
  padding: 100px 24px 80px;
}

.learn-gate h1 {
  font-size: clamp(2rem, 5vw, 2.8rem);
  margin: 10px 0 16px;
  letter-spacing: -0.03em;
}

.access-form {
  display: grid;
  gap: 14px;
  margin-top: 28px;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
}

.access-form label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}

.access-form input[type="text"],
.access-form input[type="email"] {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  background: rgba(0, 0, 0, 0.25);
  color: var(--text);
  font: 500 15px var(--font);
}

.access-form .honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  width: 0;
}

.form-status {
  min-height: 1.2em;
  font-size: 14px;
  color: var(--muted);
  margin: 0;
}

.form-status.error { color: #ff8f8f; }
.form-status.ok { color: var(--ok); }

.access-ready {
  margin-top: 28px;
  padding: 28px;
  border-radius: 16px;
  border: 1px solid rgba(92, 225, 230, 0.35);
  background: linear-gradient(160deg, rgba(61, 123, 255, 0.16), rgba(11, 17, 32, 0.9));
}

.access-ready h2 { margin-bottom: 8px; }
.access-ready p { color: var(--muted); margin-bottom: 16px; }

.access-ready input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  background: rgba(0, 0, 0, 0.35);
  color: var(--cyan);
  font: 500 13px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
  margin-bottom: 16px;
}

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

.learn-shell {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 0;
  min-height: calc(100vh - 72px);
  border-top: 1px solid var(--border);
}

.learn-sidebar {
  padding: 36px 24px 48px;
  border-right: 1px solid var(--border);
  background: #05080f;
  position: sticky;
  top: 64px;
  align-self: start;
  max-height: calc(100vh - 64px);
  overflow: auto;
}

.learn-sidebar h2 {
  font-size: 1.35rem;
  margin: 6px 0 10px;
}

.learner-meta {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 22px;
}

.learn-toc {
  list-style: none;
  display: grid;
  gap: 6px;
  margin-bottom: 24px;
}

.learn-toc a {
  display: block;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--muted);
  font-size: 13.5px;
  font-weight: 600;
  border: 1px solid transparent;
}

.learn-toc a:hover,
.learn-toc a.active {
  color: var(--text);
  background: var(--surface);
  border-color: var(--border);
}

.learn-toc a.done::after {
  content: " ✓";
  color: var(--ok);
}

.progress-wrap {
  margin-top: 8px;
}

.progress-bar {
  height: 6px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
  margin-bottom: 8px;
}

.progress-bar::after {
  content: "";
  display: block;
  height: 100%;
  width: var(--pct, 0%);
  background: linear-gradient(90deg, var(--accent), var(--cyan));
  transition: width 0.35s ease;
}

#progress-label {
  font-size: 12px;
  color: var(--muted);
}

.learn-main {
  padding: 48px 40px 80px;
  max-width: 820px;
}

.learn-mod .mod-label {
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 8px;
}

.learn-mod h1 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.learn-mod .lede {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 28px;
}

.learn-mod h3 {
  margin: 28px 0 10px;
  font-size: 1.05rem;
}

.learn-mod ul {
  padding-left: 1.2rem;
  color: var(--muted);
  display: grid;
  gap: 8px;
}

.learn-mod > p {
  color: var(--muted);
}

.learn-mod .hf-note {
  margin: 24px 0;
}

.learn-mod .mark-done {
  margin-top: 8px;
}

.learn-footnote {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 12.5px;
  color: #5b6679;
}

@media (max-width: 900px) {
  .learn-shell {
    grid-template-columns: 1fr;
  }
  .learn-sidebar {
    position: static;
    max-height: none;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }
  .learn-main {
    padding: 32px 20px 64px;
  }
}