@font-face {
  font-family: "DM Serif Display";
  src: url("/assets/DMSerifDisplay-Regular-7107a8a4.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

.reading-navigation {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  min-height: 64px;
  padding-block: 8px;
}

.reading-navigation__user,
.feature-menu__close {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: #eef2f7;
  color: #17212b;
  cursor: pointer;
}

.reading-navigation__user:hover,
.feature-menu__close:hover { background: #e1e8f2; }

.reading-navigation__brand {
  display: flex;
  align-items: baseline;
  gap: 8px;
  color: #17212b;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -.04em;
  text-decoration: none;
}

.reading-navigation__brand strong { color: #2448b7; font-size: 27px; }
.reading-navigation__account { min-width: 0; justify-self: end; }

.feature-menu {
  position: fixed;
  inset: 0;
  box-sizing: border-box;
  width: min(920px, calc(100% - 48px));
  max-width: none;
  max-height: calc(100dvh - 48px);
  margin: auto;
  padding: 24px 28px 16px;
  overflow-y: auto;
  overscroll-behavior: contain;
  border: 0;
  border-radius: 20px;
  background: #f8f9fc;
  color: #17212b;
  box-shadow: 0 24px 80px #10182040;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", sans-serif;
}

.feature-menu::backdrop { background: #10182080; backdrop-filter: blur(5px); }
.feature-menu__top { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.feature-menu__top h2 { margin: 0; font-size: 28px; font-weight: 800; letter-spacing: -1px; }
.feature-menu__top a { color: inherit; text-decoration: none; }
.feature-menu .feature-menu__close {
  flex: 0 0 auto;
  background: #eef0f2;
}
.feature-menu .feature-menu__close:hover { background: #e1e4e8; }
.feature-menu .feature-menu__close:active { background: #d5d9de; }
.feature-menu .feature-menu__close:focus-visible {
  outline: 2px solid #66717c;
  outline-offset: -3px;
}
.feature-menu__registration { display: flex; align-items: center; justify-content: center; min-height: 48px; margin-bottom: 22px; padding: 12px 24px; border-radius: 999px; background: var(--brand-blue); color: #fff; font-size: 15px; font-weight: 700; text-decoration: none; }
.feature-menu__registration:hover { background: var(--brand-blue-dark); color: #fff; }
.feature-menu__choices { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
@media (min-width: 900px) {
  .feature-menu .feature-menu__choices:has(.feature-menu__card--talk) { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
.feature-menu__card {
  container-type: inline-size;
  position: relative;
  display: block;
  min-width: 0;
  aspect-ratio: 6 / 5;
  overflow: hidden;
  border-radius: 12px;
  background: #17212b;
  color: #fff;
  text-decoration: none;
  box-shadow: 0 3px 10px #10182020;
  transition: box-shadow 150ms ease, transform 150ms ease;
}
.feature-menu__card:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px #10182030; }
.feature-menu__art { display: block; width: 100%; height: 100%; object-fit: cover; }
.feature-menu__card--talk::after { content: ''; position: absolute; inset: 30% 0 0; background: linear-gradient(transparent, #17212bd9); pointer-events: none; }
.feature-menu__card--talk .feature-menu__copy,
.feature-menu__card--talk .feature-menu__arrow { z-index: 1; }
.feature-menu__copy { position: absolute; bottom: 26px; left: 26px; right: 64px; display: grid; gap: 4px; }
.feature-menu__name { font-family: "DM Serif Display", Georgia, serif; font-size: clamp(34px, 13cqw, 64px); line-height: 1.05; letter-spacing: -.025em; }
.feature-menu__description { font-size: 14px; font-weight: 600; line-height: 1.6; }
.feature-menu__arrow { position: absolute; bottom: 32px; right: 26px; filter: invert(1); }
.feature-menu__account { display: flex; align-items: center; flex-wrap: wrap; gap: 0 24px; margin-top: 20px; }
.feature-menu__account a,
.feature-menu__account button { display: inline-flex; align-items: center; min-height: 44px; padding: 4px 0; border: 0; background: transparent; color: #4b5664; font-size: 13px; text-decoration: none; cursor: pointer; }
.feature-menu__account a:hover,
.feature-menu__account button:hover { color: #2448b7; text-decoration: underline; text-underline-offset: 4px; }
.feature-menu__account form { margin-left: auto; }
.reading-navigation a:focus-visible,
.reading-navigation button:focus-visible { outline: 3px solid #4874d8; outline-offset: 4px; }

@media (max-width: 640px) {
  .reading-navigation { min-height: 60px; padding-block: 8px; gap: 8px; }
  .reading-navigation__brand { display: grid; gap: 1px; text-align: center; font-size: 13px; line-height: 1.1; }
  .reading-navigation__brand strong { font-size: 23px; }
  .reading-navigation__account { max-width: 100%; }
  .reading-navigation .reading-registration-link { min-width: 0; max-width: 96px; padding: 7px 5px; }
  .feature-menu { width: calc(100% - 24px); max-height: calc(100dvh - 24px); padding: 16px 16px 10px; border-radius: 16px; }
  .feature-menu__top { margin-bottom: 16px; }
  .feature-menu__top h2 { font-size: 22px; }
  .feature-menu__registration { margin-bottom: 16px; }
  .feature-menu__choices { grid-template-columns: 1fr; gap: 16px; }
  .feature-menu__card { aspect-ratio: 6 / 5; }
  .feature-menu__copy { bottom: 20px; left: 20px; right: 52px; }
  .feature-menu__description { font-size: 12px; }
  .feature-menu__arrow { bottom: 26px; right: 20px; width: 24px; height: 24px; }
  .feature-menu__account { gap: 0 16px; margin-top: 12px; }
  .feature-menu__account a,
  .feature-menu__account button { font-size: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  .feature-menu__card { transition: none; }
}

    .reading-account-summary {
      display: grid;
      min-width: 92px;
      justify-items: end;
      color: #6b7880;
      font-size: 11px;
      line-height: 1.25;
      text-decoration: none;
    }

    .reading-account-summary__name {
      max-width: 160px;
      overflow: hidden;
      color: #315ee7;
      font-size: 12px;
      font-weight: 700;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .reading-account-summary__xp {
      display: inline-flex;
      align-items: baseline;
      gap: 4px;
      color: #17212b;
      font-size: 18px;
      font-weight: 800;
    }

    .reading-account-summary__xp strong {
      color: #ec4899;
      font-size: 22px;
    }

    .reading-account-summary__credits {
      font-size: 10px;
    }


@media (max-width: 640px) {
      .reading-account-summary {
        min-width: 64px;
      }

      .reading-account-summary__name {
        max-width: 82px;
        font-size: 10px;
      }

      .reading-account-summary__xp {
        font-size: 14px;
      }

      .reading-account-summary__xp strong {
        font-size: 17px;
      }

      .reading-account-summary__credits {
        font-size: 9px;
      }

}

.brand-ui .learning-header { background: #fff; border-bottom: 1px solid var(--brand-border); }
.brand-ui .learning-header .reading-navigation { max-width: 1328px; margin: 0 auto; padding-inline: 40px; min-height: 80px; }
.brand-ui .learning-header .reading-navigation__user { background: var(--brand-yellow); }
.brand-ui .learning-header .reading-navigation__brand strong { color: var(--brand-blue); }
.brand-ui .learning-header .reading-account-summary { min-height: 44px; align-content: center; }
.learning-header .reading-account-summary__xp { flex-wrap: wrap; justify-content: end; }
@media (max-width: 760px) {
  .brand-ui .learning-header .reading-navigation { padding-inline: 20px; min-height: 72px; }
}
@media (max-width: 380px) {
  .brand-ui .learning-header .reading-navigation { padding-inline: 12px; gap: 8px; }
}
.learning-header .reading-navigation__account { max-width: 100%; }