/* Navigation borrows the ink-worked frames and pigment washes of the area cards. */
body:not(.is-playing) .learning-nav,
body.dashboard-home .learning-nav {
  display: flex;
  align-self: center;
  align-items: center;
  gap: 8px;
  width: auto;
  padding: 3px;
  background: transparent;
  border: 0;
  border-image: none;
  border-radius: 10px;
  box-shadow: none;
  clip-path: none;
}

body:not(.is-playing) .learning-nav button,
body.dashboard-home .learning-nav button {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  gap: 9px;
  position: relative;
  min-height: 56px;
  margin: 0;
  padding: 7px 13px 9px;
  color: #112d50;
  background-color: #e4edf8;
  background-image: linear-gradient(#fffaf260, #fffaf260), url("assets/ui/button-texture-powder-v2.webp");
  background-position: center;
  background-size: cover;
  background-clip: border-box;
  background-origin: border-box;
  border: 6px solid transparent;
  border-image: url("assets/ui/nav-frame-navy-v3.svg") 72 82 / 7px / 0 stretch;
  border-radius: 0;
  box-shadow: 0 2px 6px #112d5010;
  clip-path: polygon(6px 0, calc(100% - 6px) 0, 100% 6px, 100% calc(100% - 6px), calc(100% - 6px) 100%, 6px 100%, 0 calc(100% - 6px), 0 6px);
  font: 700 .98rem/1.15 Georgia, serif;
  letter-spacing: 0;
  white-space: nowrap;
  transition: filter .15s ease, transform .15s ease;
}

body:not(.is-playing) .learning-nav #dashboard-home:not([aria-current="page"]) {
  background-image: linear-gradient(#fffaf28c, #fffaf28c), url("assets/ui/button-texture-indigo-v2.webp");
}

body:not(.is-playing) .learning-nav button::before {
  width: 20px;
  height: 20px;
}

body:not(.is-playing) .learning-nav button:hover,
body.dashboard-home .learning-nav button:hover {
  color: #112d50;
  filter: saturate(1.08) brightness(1.02);
  transform: translateY(-1px);
}

body:not(.is-playing) .learning-nav button[aria-current="page"],
body.dashboard-home .learning-nav button[aria-current="page"] {
  color: #112d50;
  background-color: #f7d8d1;
  background-image: linear-gradient(#fffaf28c, #fffaf28c), url("assets/ui/button-texture-coral-v2.webp");
  border-image: url("assets/ui/nav-frame-coral-v3.svg") 72 82 / 7px / 0 stretch;
  box-shadow: 0 2px 8px #ce4c4514;
}

body:not(.is-playing) .learning-nav button[aria-current="page"]::before {
  color: #d64e47;
}

body:not(.is-playing) .learning-nav button[aria-current="page"]::after {
  content: none;
  display: none;
}

body:not(.is-playing) .learning-nav button:focus-visible {
  outline: 3px solid #112d50;
  outline-offset: -5px;
}

body:not(.is-playing) .learning-nav-divider {
  display: none;
  flex: 0 0 1px;
  width: 1px;
  height: 22px;
  margin: 0 2px;
  background: #d6dce0;
  transform: none;
}

body:not(.is-playing) .learning-nav-divider::before {
  content: none;
}

@media (max-width: 900px) {
  body:not(.is-playing) .learning-nav,
  body.dashboard-home .learning-nav {
    grid-column: 1 / -1;
    order: 3;
    justify-content: space-between;
    width: 100%;
    margin-top: 4px;
    padding: 8px 0 0;
    border-top: 1px solid #e3e1d9;
    border-radius: 0;
  }

  body:not(.is-playing) .learning-nav button {
    flex: 1 1 0;
    min-width: 0;
    padding: 4px 3px 7px;
    font-size: .86rem;
  }
}

@media (max-width: 480px) {
  body:not(.is-playing) .learning-nav { gap: 6px; }
  body:not(.is-playing) .learning-nav button {
    flex-direction: column;
    gap: 5px;
    min-height: 70px;
    padding: 6px 1px 9px;
    font-size: clamp(.69rem, 3.15vw, .84rem);
  }
  body:not(.is-playing) .learning-nav button::before { display: block; width: 21px; height: 21px; }
  body:not(.is-playing) .learning-nav #learn-home { flex: .8 1 0; }
  body:not(.is-playing) .learning-nav #browse-decks { flex: 1.2 1 0; }
}

@media (min-width: 761px) and (max-width: 1000px) {
  body.learning-home .learning-areas { grid-template-columns: 1fr; }
  body.learning-home .learning-area-card { min-height: 130px; }
}

@media (max-width: 360px) {
  body:not(.is-playing) .hero h1 { font-size: 1.3rem; white-space: nowrap; }
}

@media (prefers-reduced-motion: reduce) {
  body:not(.is-playing) .learning-nav button { transition: none; }
}