:root {
  --menu-ink: #172139;
  --menu-muted: #67738a;
  --menu-line: #dde4ef;
}

* {
  box-sizing: border-box;
}

body.learning-menu-body {
  min-width: 320px;
  margin: 0;
  color: var(--menu-ink);
  background:
    radial-gradient(circle at 12% 8%, rgba(255, 203, 181, .42), transparent 23rem),
    radial-gradient(circle at 88% 92%, rgba(157, 152, 255, .25), transparent 30rem),
    #f6f8fc;
  font-family: "Be Vietnam Pro", "Segoe UI", sans-serif;
}

body.learning-menu-body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  background-image: radial-gradient(circle, rgba(75, 88, 118, .1) 1px, transparent 1.2px);
  background-size: 28px 28px;
  mask-image: linear-gradient(to bottom, #000, transparent 78%);
}

.learning-menu-shell {
  width: min(1180px, calc(100% - 36px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 24px 0 72px;
}

.learning-menu-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.learning-menu-brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--menu-ink);
  text-decoration: none;
}

.learning-menu-brand > span {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  overflow: hidden;
  background: #fff;
  border: 1px solid rgba(32, 48, 70, .16);
  border-radius: 50%;
  box-shadow: 0 10px 22px rgba(32, 48, 70, .16);
}

.learning-menu-brand-mark img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.learning-menu-brand b {
  font-size: 16px;
}

.learning-menu-account {
  display: flex;
  align-items: center;
  gap: 15px;
  color: var(--menu-muted);
  font-size: 13px;
}

.learning-menu-account a {
  padding: 9px 14px;
  color: #59647a;
  text-decoration: none;
  background: rgba(255, 255, 255, .82);
  border: 1px solid var(--menu-line);
  border-radius: 999px;
  font-weight: 750;
}

.learning-menu-account .learning-menu-auth-button {
  color: #fff;
  background: linear-gradient(135deg, #3663f4, #7331df);
  border-color: transparent;
  box-shadow: 0 10px 22px rgba(82, 67, 211, .18);
}

.learning-menu-account .learning-menu-auth-button:hover,
.learning-menu-account .learning-menu-auth-button:focus-visible {
  color: #fff;
  transform: translateY(-1px);
}

.learning-menu-intro {
  max-width: 720px;
  margin: 76px auto 40px;
  text-align: center;
}

.learning-menu-intro p {
  margin: 0 0 10px;
  color: #6c5ce7;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .18em;
}

.learning-menu-intro h1 {
  margin: 0;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.12;
  letter-spacing: -.055em;
}

.learning-menu-intro > span {
  display: block;
  max-width: 600px;
  margin: 15px auto 0;
  color: var(--menu-muted);
  font-size: 15px;
  line-height: 1.7;
}

.learning-menu-intro .learning-menu-subtitle {
  margin: 14px auto 0;
  color: var(--menu-muted);
  font-size: 15px;
}

.learning-menu-back {
  display: inline-flex;
  margin-top: 22px;
  padding: 10px 16px;
  color: #32415d;
  text-decoration: none;
  background: #fff;
  border: 1px solid var(--menu-line);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 750;
}

.learning-menu-back:hover,
.learning-menu-back:focus-visible {
  border-color: #6d5ce8;
}

.learning-menu-other {
  margin-top: 64px;
}

.learning-menu-other h2 {
  margin: 0 0 18px;
  color: var(--menu-muted);
  font-size: 15px;
  font-weight: 800;
}

.learning-menu-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.learning-menu-card {
  --card-accent: #6d5ce8;
  --card-soft: #f0edff;
  position: relative;
  display: grid;
  min-height: 190px;
  grid-template-columns: 84px minmax(0, 1fr) 42px;
  align-items: center;
  gap: 22px;
  overflow: hidden;
  padding: 28px;
  color: var(--menu-ink);
  text-decoration: none;
  background: rgba(255, 255, 255, .9);
  border: 1px solid var(--menu-line);
  border-radius: 27px;
  box-shadow: 0 20px 50px rgba(35, 47, 76, .08);
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}

.learning-menu-card::before {
  position: absolute;
  top: -80px;
  right: -60px;
  width: 180px;
  height: 180px;
  content: "";
  background: var(--card-soft);
  border-radius: 50%;
}

.learning-menu-card:hover,
.learning-menu-card:focus-visible {
  border-color: color-mix(in srgb, var(--card-accent) 45%, white);
  box-shadow: 0 25px 58px color-mix(in srgb, var(--card-accent) 16%, transparent);
  transform: translateY(-5px);
}

.learning-menu-card:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--card-accent) 30%, white);
  outline-offset: 3px;
}

.learning-menu-card--wide {
  min-height: 170px;
  grid-column: 1 / -1;
}

.learning-menu-card--study-room { --card-accent: #178f79; --card-soft: #dff8f1; }
.learning-menu-card--practice-room { --card-accent: #365de0; --card-soft: #e6edff; }
.learning-menu-card--hsa { --card-accent: #365de0; --card-soft: #e6edff; }
.learning-menu-card--tsa { --card-accent: #7a48ca; --card-soft: #f0e8ff; }
.learning-menu-card--quick-solve { --card-accent: #eb684d; --card-soft: #ffebe5; }
.learning-menu-card--probability { --card-accent: #6759e8; --card-soft: #efedff; }
.learning-menu-card--spatial { --card-accent: #238aab; --card-soft: #e1f4fa; }
.learning-menu-card--invariants { --card-accent: #c65d93; --card-soft: #fce7f2; }

.learning-menu-card-symbol {
  position: relative;
  z-index: 1;
  display: grid;
  width: 76px;
  height: 76px;
  place-items: center;
  color: #fff;
  background: var(--card-accent);
  border: 7px solid var(--card-soft);
  border-radius: 24px;
  box-shadow: 0 14px 28px color-mix(in srgb, var(--card-accent) 24%, transparent);
  font-size: 25px;
  font-weight: 900;
  transform: rotate(-3deg);
}

.learning-menu-card-copy {
  position: relative;
  z-index: 1;
  display: grid;
  min-width: 0;
}

.learning-menu-card-copy small {
  color: var(--card-accent);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .15em;
  text-transform: uppercase;
}

.learning-menu-card-copy strong {
  margin-top: 6px;
  font-size: clamp(20px, 2.2vw, 27px);
  line-height: 1.3;
  letter-spacing: -.025em;
}

.learning-menu-card-copy > span {
  max-width: 650px;
  margin-top: 8px;
  color: var(--menu-muted);
  font-size: 13px;
  line-height: 1.65;
}

.learning-menu-card > i {
  position: relative;
  z-index: 1;
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  color: var(--card-accent);
  background: var(--card-soft);
  border-radius: 50%;
  font-size: 20px;
  font-style: normal;
  transition: transform .25s ease;
}

.learning-menu-card:hover > i {
  transform: translateX(4px);
}

.learning-menu-card.is-coming-soon {
  cursor: not-allowed;
}

.learning-menu-card.is-coming-soon:focus-visible { outline: none; }

.learning-menu-card.is-coming-soon:hover {
  border-color: var(--menu-line);
  box-shadow: 0 20px 50px rgba(35, 47, 76, .08);
  transform: none;
}

.learning-menu-card.is-coming-soon:hover > i {
  transform: none;
}

@media (max-width: 760px) {
  .learning-menu-shell {
    width: min(100% - 24px, 600px);
    padding-top: 14px;
  }

  .learning-menu-account > span {
    display: none;
  }

  .learning-menu-intro {
    margin: 52px auto 30px;
  }

  .learning-menu-grid {
    grid-template-columns: 1fr;
  }

  .learning-menu-card--wide {
    grid-column: auto;
  }
}

@media (max-width: 480px) {
  .learning-menu-brand b {
    font-size: 14px;
  }

  .learning-menu-card {
    min-height: 0;
    grid-template-columns: 60px minmax(0, 1fr) 32px;
    gap: 14px;
    padding: 20px 16px;
    border-radius: 21px;
  }

  .learning-menu-card-symbol {
    width: 58px;
    height: 58px;
    border-width: 5px;
    border-radius: 18px;
    font-size: 20px;
  }

  .learning-menu-card-copy > span {
    display: none;
  }

  .learning-menu-card > i {
    width: 32px;
    height: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}