/* assets/pages/learn/learn-hub.css */
/* Separate learning hub experience for Musicatea. */

.learn-hub-shell {
  min-height: 100vh;
  background:
    radial-gradient(circle at 50% 0%, rgba(200,164,90,.10), transparent 34rem),
    linear-gradient(180deg, rgba(15,15,18,.98), var(--bg) 48%);
}

.learn-hub-shell-vivid {
  background:
    radial-gradient(circle at 12% 8%, rgba(124,214,255,.20), transparent 26rem),
    radial-gradient(circle at 88% 4%, rgba(255,143,177,.17), transparent 27rem),
    radial-gradient(circle at 50% 32%, rgba(226,192,122,.12), transparent 34rem),
    linear-gradient(180deg, rgba(9,9,14,.98), var(--bg) 62%);
}

.learn-hub-nav {
  position: sticky;
  top: 0;
  z-index: 180;
  border-bottom: 1px solid rgba(255,255,255,.09);
  background: rgba(9,9,11,.86);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
}

.learn-hub-nav-inner {
  width: min(1180px, 92vw);
  min-height: 74px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.learn-hub-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff0ad;
  font-weight: 900;
  font-size: 1.45rem;
  text-decoration: none;
  white-space: nowrap;
}

.learn-hub-brand img {
  width: 38px;
  height: 38px;
  object-fit: contain;
  border-radius: 50%;
  box-shadow: 0 8px 24px rgba(255,184,108,.18);
}

.learn-hub-menu {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.learn-hub-menu a {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 13px;
  border-radius: 999px;
  border: 1px solid transparent;
  color: rgba(237,232,220,.76);
  font-size: .86rem;
  font-weight: 800;
  text-decoration: none;
  transition: all .22s var(--ease);
}

.learn-hub-menu a:hover,
.learn-hub-menu a:focus-visible,
.learn-hub-menu a.active {
  color: #fff0ad;
  border-color: rgba(255,224,138,.34);
  background: rgba(255,224,138,.10);
  outline: none;
}

.learn-hub-main {
  width: min(1180px, 92vw);
  margin: 0 auto;
  padding: 58px 0 90px;
}

.learn-hub-hero {
  text-align: center;
  padding: 38px 20px 28px;
}

.learn-hub-hero-vivid {
  position: relative;
  overflow: hidden;
  padding: 56px 20px 38px;
  border-radius: 32px;
  border: 1px solid rgba(255,255,255,.10);
  background:
    radial-gradient(circle at 18% 16%, rgba(124,214,255,.18), transparent 18rem),
    radial-gradient(circle at 82% 12%, rgba(255,143,177,.14), transparent 18rem),
    linear-gradient(135deg, rgba(255,255,255,.06), rgba(255,255,255,.018));
  box-shadow: 0 24px 60px rgba(0,0,0,.28), inset 0 1px 0 rgba(255,255,255,.06);
}

.learn-hub-hero-vivid::before {
  content: '𝄞   ♪   ♫   ♩   𝄽';
  position: absolute;
  inset-inline-start: 5%;
  inset-block-end: 12px;
  color: rgba(255,255,255,.055);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: clamp(2.6rem, 7vw, 6.4rem);
  letter-spacing: .18em;
  white-space: nowrap;
  transform: rotate(-5deg);
  pointer-events: none;
}

.learn-hub-kicker,
.learn-hub-panel-label,
.learn-hub-section-head span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid rgba(124,214,255,.28);
  background: rgba(124,214,255,.10);
  color: #bfeeff;
  font-size: .84rem;
  font-weight: 900;
  margin-bottom: 16px;
}

.learn-hub-hero h1 {
  margin: 0 auto 14px;
  color: #fff7df;
  font-size: clamp(2rem, 5vw, 4.2rem);
  line-height: 1.16;
  font-weight: 900;
  letter-spacing: -.02em;
}

.learn-hub-hero p {
  margin: 0 auto;
  max-width: 780px;
  color: rgba(255,255,255,.78);
  font-size: clamp(1rem, 1.8vw, 1.18rem);
  line-height: 1.9;
}

.learn-hub-quick-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.learn-hub-quick-actions a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.16);
  background: linear-gradient(135deg, #ffe08a, #ffb86c 46%, #ff8fb1 100%);
  color: #16120b;
  font-weight: 900;
  text-decoration: none;
  box-shadow: 0 14px 30px rgba(255,184,108,.18);
}

.learn-hub-quick-actions a:nth-child(2) {
  background: rgba(255,255,255,.06);
  color: #fff0ad;
  border-color: rgba(255,224,138,.25);
  box-shadow: none;
}

.learn-hub-quick-actions a:hover,
.learn-hub-quick-actions a:focus-visible {
  transform: translateY(-1px);
  outline: none;
  box-shadow: 0 18px 36px rgba(255,184,108,.24);
}

.learn-hub-intro-panel {
  margin-top: 22px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
  padding: 22px;
  border-radius: 26px;
  border: 1px solid rgba(255,255,255,.09);
  background: rgba(255,255,255,.035);
  box-shadow: 0 18px 42px rgba(0,0,0,.18);
}

.learn-hub-intro-copy h2,
.learn-hub-section-head h2 {
  margin: 0;
  color: var(--text);
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  line-height: 1.35;
  font-weight: 900;
}

.learn-hub-intro-copy p {
  margin: 10px 0 0;
  max-width: 760px;
  color: rgba(255,255,255,.72);
  line-height: 1.85;
}

.learn-hub-symbol-cloud {
  min-width: 170px;
  display: grid;
  grid-template-columns: repeat(3, 46px);
  gap: 8px;
  justify-content: center;
}

.learn-hub-symbol-cloud span {
  width: 46px;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.11);
  background: rgba(255,255,255,.045);
  color: #fff0ad;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.45rem;
}

.learn-hub-section-head {
  margin: 42px 0 16px;
  text-align: center;
}

.learn-hub-section-head-inline {
  margin-top: 0;
  text-align: start;
}

.learn-hub-paths {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.learn-hub-card {
  position: relative;
  overflow: hidden;
  min-height: 270px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px;
  border-radius: 26px;
  border: 1px solid rgba(255,255,255,.11);
  background: linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.020));
  box-shadow: 0 18px 42px rgba(0,0,0,.23), inset 0 1px 0 rgba(255,255,255,.04);
  text-decoration: none;
  color: inherit;
  transition: all .28s var(--ease);
}

.learn-hub-card::after {
  content: '';
  position: absolute;
  inset: auto -30px -40px auto;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: rgba(255,224,138,.08);
  pointer-events: none;
}

.learn-hub-card:hover,
.learn-hub-card:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(255,224,138,.38);
  box-shadow: 0 24px 54px rgba(0,0,0,.34);
  outline: none;
}

.learn-hub-card.is-disabled {
  opacity: .78;
}

.learn-hub-card-rhythm {
  background:
    radial-gradient(circle at 18% 16%, rgba(124,214,255,.18), transparent 12rem),
    linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.020));
}

.learn-hub-card-maqam {
  background:
    radial-gradient(circle at 18% 16%, rgba(255,143,177,.16), transparent 12rem),
    linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.020));
}

.learn-hub-card-reading {
  background:
    radial-gradient(circle at 18% 16%, rgba(255,224,138,.15), transparent 12rem),
    linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.018));
}

.learn-hub-card-status {
  width: fit-content;
  min-height: 28px;
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(124,214,255,.22);
  background: rgba(124,214,255,.09);
  color: #bfeeff;
  font-size: .74rem;
  font-weight: 900;
}

.learn-hub-card h2,
.learn-hub-card h3 {
  margin: 4px 0 0;
  color: #fff0ad;
  font-size: 1.28rem;
  line-height: 1.45;
  font-weight: 900;
}

.learn-hub-card p {
  margin: 0;
  color: rgba(255,255,255,.72);
  line-height: 1.85;
  font-size: .94rem;
}

.learn-hub-card-action {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-height: 38px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255,224,138,.13);
  border: 1px solid rgba(255,224,138,.25);
  color: #fff0ad;
  font-size: .86rem;
  font-weight: 900;
}

.learn-hub-paths-interactive .learn-hub-card {
  min-height: 360px;
}

.learn-hub-preview {
  position: relative;
  min-height: 130px;
  margin: 0 0 4px;
  border-radius: 22px;
  border: 1px solid rgba(255,255,255,.12);
  background:
    radial-gradient(circle at 20% 20%, rgba(255,255,255,.08), transparent 9rem),
    rgba(9,9,11,.30);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.05);
  overflow: hidden;
}

.learn-hub-card:hover .learn-hub-preview,
.learn-hub-card:focus-visible .learn-hub-preview {
  border-color: rgba(255,224,138,.30);
  background:
    radial-gradient(circle at 20% 20%, rgba(255,224,138,.12), transparent 9rem),
    rgba(9,9,11,.32);
}

.learn-hub-preview-reading {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 10px;
  align-items: center;
  padding: 14px;
}

.learn-preview-meter {
  min-height: 58px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  border: 1px solid rgba(255,224,138,.28);
  background: rgba(255,224,138,.10);
  color: #fff0ad;
  font-family: Georgia, 'Times New Roman', serif;
  font-weight: 900;
}

.learn-preview-bar {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
  align-items: center;
  min-height: 72px;
  padding: 8px;
  border-inline-start: 2px solid rgba(255,224,138,.55);
  border-inline-end: 2px solid rgba(255,224,138,.55);
  background: linear-gradient(transparent 48%, rgba(255,224,138,.42) 49%, rgba(255,224,138,.42) 52%, transparent 53%);
}

.learn-preview-bar span {
  min-height: 44px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: rgba(255,255,255,.055);
  color: #fff0ad;
  font-family: Georgia, 'Times New Roman', serif;
  font-weight: 900;
}

.learn-hub-preview-rhythm {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 18px;
}

.learn-preview-line {
  position: absolute;
  left: 24px;
  right: 24px;
  top: 50%;
  height: 3px;
  border-radius: 999px;
  background: rgba(255,224,138,.46);
}

.learn-preview-note {
  position: relative;
  z-index: 1;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(255,224,138,.34);
  background: rgba(9,9,11,.78);
  color: #fff0ad;
  font-family: Cairo, sans-serif;
  font-weight: 900;
  box-shadow: 0 8px 18px rgba(0,0,0,.20);
}

.learn-preview-note.rest {
  border-radius: 15px;
  color: #bfeeff;
  border-color: rgba(124,214,255,.30);
}

.learn-hub-preview-maqam {
  padding: 16px;
}

.learn-preview-staff {
  position: absolute;
  inset: 22px 18px;
  display: grid;
  align-content: space-between;
}

.learn-preview-staff span {
  height: 2px;
  background: rgba(255,224,138,.44);
  border-radius: 999px;
}

.learn-hub-preview-maqam b {
  position: absolute;
  top: var(--y);
  transform: translateY(-50%);
  width: 36px;
  height: 24px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: #fff0ad;
  color: #16120b;
  font-size: .72rem;
  font-weight: 900;
}

.learn-hub-preview-maqam b:nth-of-type(1) { right: 22px; }
.learn-hub-preview-maqam b:nth-of-type(2) { right: 64px; }
.learn-hub-preview-maqam b:nth-of-type(3) { right: 106px; }
.learn-hub-preview-maqam b:nth-of-type(4) { right: 148px; }
.learn-hub-preview-maqam b:nth-of-type(5) { right: 190px; }

.learn-hub-sequence {
  margin-top: 42px;
  padding: 24px;
  border-radius: 26px;
  border: 1px solid rgba(255,255,255,.09);
  background:
    radial-gradient(circle at 8% 20%, rgba(255,143,177,.10), transparent 14rem),
    rgba(255,255,255,.030);
}

.learn-hub-steps {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.learn-hub-step {
  min-height: 92px;
  padding: 14px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.09);
  background: rgba(9,9,11,.34);
}

.learn-hub-step strong {
  display: block;
  color: #fff0ad;
  margin-bottom: 5px;
  font-size: .9rem;
}

.learn-hub-step span {
  color: rgba(255,255,255,.68);
  line-height: 1.6;
  font-size: .82rem;
}

.learn-home-entry {
  padding: 0 5% 34px;
}

.learn-home-entry-card {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  align-items: center;
  padding: 24px;
  border-radius: 24px;
  border: 1px solid rgba(200,164,90,.20);
  background: linear-gradient(180deg, rgba(200,164,90,.10), rgba(255,255,255,.02));
  box-shadow: 0 18px 40px rgba(0,0,0,.20);
}

.learn-home-entry-card h2 {
  margin: 0 0 8px;
  color: var(--gold-light);
  font-size: 1.45rem;
  font-weight: 900;
}

.learn-home-entry-card p {
  margin: 0;
  color: rgba(237,232,220,.76);
  line-height: 1.8;
  font-size: .96rem;
}

.learn-home-entry-card a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--gold);
  color: var(--bg);
  font-weight: 900;
  text-decoration: none;
  white-space: nowrap;
  transition: all .24s var(--ease);
}

.learn-home-entry-card a:hover {
  background: var(--gold-light);
  transform: translateY(-1px);
}

@media (max-width: 900px) {
  .learn-hub-nav-inner {
    min-height: auto;
    padding: 12px 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .learn-hub-menu {
    justify-content: flex-start;
  }

  .learn-hub-paths,
  .learn-hub-steps {
    grid-template-columns: 1fr;
  }

  .learn-hub-intro-panel {
    grid-template-columns: 1fr;
  }

  .learn-hub-symbol-cloud {
    min-width: 0;
    grid-template-columns: repeat(5, 42px);
    justify-content: flex-start;
  }

  .learn-home-entry-card {
    grid-template-columns: 1fr;
  }

  .learn-home-entry-card a {
    width: 100%;
  }
}

@media (max-width: 560px) {
  .learn-hub-main {
    padding-top: 34px;
  }

  .learn-hub-hero,
  .learn-hub-hero-vivid {
    padding: 34px 16px 28px;
    border-radius: 24px;
  }

  .learn-hub-hero-vivid::before {
    font-size: 2.7rem;
    inset-inline-start: 0;
  }

  .learn-hub-card,
  .learn-hub-sequence,
  .learn-hub-intro-panel {
    padding: 18px;
    border-radius: 20px;
  }

  .learn-hub-symbol-cloud {
    grid-template-columns: repeat(3, 42px);
  }

  .learn-hub-quick-actions a {
    width: 100%;
  }

  .learn-preview-bar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .learn-hub-card,
  .learn-hub-quick-actions a,
  .learn-home-entry-card a {
    transition: none;
  }

  .learn-hub-card:hover,
  .learn-hub-card:focus-visible,
  .learn-hub-quick-actions a:hover,
  .learn-hub-quick-actions a:focus-visible {
    transform: none;
  }
}