.account-nav-link {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
}

.platform-skip-link {
  position: fixed;
  z-index: 10000;
  top: 10px;
  left: 10px;
  padding: .7rem 1rem;
  color: #fff;
  border-radius: 9px;
  background: #17191f;
  font: 800 .85rem/1 system-ui, sans-serif;
  text-decoration: none;
  transform: translateY(-180%);
}

.platform-skip-link:focus { transform: translateY(0); }
.platform-mobile-nav { display: none; }

.course-access-bar {
  position: sticky;
  z-index: 19;
  top: 72px;
  min-height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 16px;
  overflow-x: auto;
  color: #343b46;
  border-bottom: 1px solid #d5dce6;
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 4px 18px rgba(34, 47, 64, .05);
  scrollbar-width: thin;
}

.course-access-bar::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, #aac4f7 0 25%, #c4f69a 25% 50%, #c9c6ff 50% 75%, #d66859 75%);
  content: "";
}

.course-access-bar > span {
  flex: 0 0 auto;
  margin-right: 4px;
  color: #6b7280;
  font: 900 9px/1 system-ui, sans-serif;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.course-access-bar a {
  min-height: 32px;
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 6px;
  padding: 5px 11px;
  color: #505965;
  border: 1px solid transparent;
  border-radius: 999px;
  font: 850 10px/1 system-ui, sans-serif;
  text-decoration: none;
}

.course-access-bar a:hover,
.course-access-bar a[aria-current="page"] {
  color: #241e79;
  border-color: #c9c5f4;
  background: #efeeff;
}

.course-access-bar a:last-child,
.course-access-bar a.course-lab-link {
  color: #24351a;
  border-color: #b9d99e;
  background: #f0fde5;
}

.course-access-bar small {
  padding: 3px 5px;
  color: #fff;
  border-radius: 999px;
  background: #4139c3;
  font-size: 7px;
  font-weight: 900;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.account-nav-link::before {
  width: .58rem;
  height: .58rem;
  border: 2px solid currentColor;
  border-radius: 50%;
  content: "";
  opacity: .75;
}

.account-gate {
  width: min(92vw, 490px);
  margin: auto;
  padding: 2rem;
  color: #17191f;
  border: 1px solid #252936;
  border-radius: 24px;
  background: #f7f3e9;
  box-shadow: 0 28px 90px rgba(0, 0, 0, .5);
  font: inherit;
}

.account-gate::backdrop { background: rgba(6, 8, 12, .78); backdrop-filter: blur(5px); }
.account-gate-close { position: absolute; top: 1rem; right: 1rem; width: 2.25rem; height: 2.25rem; color: #17191f; border: 1px solid #b9b4aa; border-radius: 50%; background: transparent; font-size: 1.4rem; cursor: pointer; }
.account-gate-eyebrow { margin: 0 0 .8rem; color: #5d36dc; font-size: .72rem; font-weight: 900; letter-spacing: .12em; }
.account-gate h2 { max-width: 390px; margin: 0; font-size: clamp(1.8rem, 5vw, 2.6rem); line-height: 1.02; letter-spacing: -.045em; }
.account-gate > p:not(.account-gate-eyebrow) { margin: 1rem 0 1.5rem; color: #555861; line-height: 1.6; }
.account-gate-actions { display: grid; gap: .65rem; }
.account-gate-actions a { display: flex; align-items: center; justify-content: center; min-height: 48px; padding: .75rem 1rem; border-radius: 12px; font-weight: 800; text-decoration: none; }
.account-gate-primary { color: white; background: #17191f; }
.account-gate-secondary { color: #17191f; border: 1px solid #b9b4aa; }
.account-gate small { display: block; margin-top: 1rem; color: #797b83; text-align: center; }
.platform-legal-footer{display:grid;grid-template-columns:auto 1fr;gap:14px 28px;align-items:start;padding:28px clamp(20px,5vw,70px);border-top:1px solid rgba(130,142,160,.28);background:#080b10;color:#8993a2;font:700 11px/1.5 system-ui,sans-serif}.platform-legal-footer nav{display:flex;justify-content:flex-end;gap:16px;flex-wrap:wrap}.platform-legal-footer a{color:#aeb8c8;text-decoration:none}.platform-legal-footer a:hover{color:#c4f69a}.platform-legal-footer small{grid-column:1/-1;color:#737e8d;font-size:9px;font-weight:600}

@media (max-width: 560px) {
  .account-gate { padding: 1.5rem; border-radius: 20px; }
  .platform-legal-footer{grid-template-columns:1fr}.platform-legal-footer nav{justify-content:flex-start}
}

@media (max-width: 860px) {
  .course-access-bar {
    justify-content: flex-start;
  }
  .platform-mobile-nav {
    width: 100%;
    max-width: 100vw;
    min-width: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    min-height: 48px;
    padding: 4px 12px;
    overflow-x: hidden;
    color: #1d2632;
    border-bottom: 1px solid #cbd8e7;
    background: #f7f9fc;
    scrollbar-width: thin;
  }
  .platform-mobile-nav a {
    display: inline-flex;
    flex: 0 0 auto;
    align-items: center;
    min-height: 40px;
    padding: 0 12px;
    color: inherit;
    border-radius: 999px;
    font: 800 11px/1 system-ui, sans-serif;
    text-decoration: none;
  }
  .platform-mobile-nav a[aria-current="page"] { color: #fff; background: #4139c3; }
}

@media (prefers-reduced-motion: reduce) {
  .platform-skip-link { transition: none; }
  .account-gate::backdrop { backdrop-filter: none; }
}