.knowledge-hub { padding-block: 34px 84px; }
.knowledge-hub__intro { display: grid; grid-template-columns: minmax(0, 1fr) minmax(250px, 340px); gap: var(--space-8); align-items: end; margin: 32px 0 var(--space-10); }
.knowledge-hub__intro > div { max-width: 760px; }
.knowledge-hub__intro h1 { margin-bottom: var(--space-3); }
.knowledge-hub__intro p:last-child { margin: 0; color: var(--text-soft); }

.arcana-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-4); }
.arcana-tile { position: relative; min-width: 0; overflow: hidden; display: grid; grid-template-columns: 78px minmax(0, 1fr) 34px; gap: var(--space-4); align-items: center; padding: var(--space-3); border: 1px solid var(--glass-line-soft); border-radius: var(--radius-md); background: linear-gradient(135deg, rgba(12, 27, 37, .8), rgba(18, 20, 24, .72)); box-shadow: inset 0 1px rgba(221, 238, 244, .035); transition: border-color var(--dur-default) var(--ease-default), background var(--dur-default) var(--ease-default), box-shadow var(--dur-default) var(--ease-default); }
.arcana-tile:hover,.arcana-tile:focus-visible { border-color: rgba(214, 168, 95, .34); background: linear-gradient(135deg, rgba(17, 39, 52, .9), rgba(41, 31, 22, .74)); box-shadow: inset 0 1px rgba(238, 224, 197, .08), 0 18px 44px rgba(0, 0, 0, .2); outline: none; }
.arcana-tile img { width: 78px; aspect-ratio: 2/3; object-fit: cover; border-radius: var(--radius-xs); }
.arcana-tile span { min-width: 0; }
.arcana-tile small,.arcana-tile em { display: block; color: var(--text-muted); font: normal .68rem/1.45 var(--font-mono); }
.arcana-tile strong { display: block; margin: 4px 0; line-height: 1.25; }
.arcana-tile i { color: var(--accent-amber-light); font-style: normal; text-align: center; }

.arcana-detail { display: grid; grid-template-columns: minmax(250px, 340px) minmax(0, 760px); gap: clamp(36px, 7vw, 92px); align-items: start; margin-top: 34px; }
.arcana-detail__visual { position: sticky; top: 108px; padding: var(--space-4); border: 1px solid var(--glass-line-soft); border-radius: var(--radius-lg); background: radial-gradient(circle at 50% 20%, rgba(121, 174, 199, .14), transparent 48%), rgba(8, 17, 24, .66); }
.arcana-detail__visual img { width: 100%; border-radius: var(--radius-md); box-shadow: 0 24px 54px rgba(0, 0, 0, .42); }
.arcana-detail__content h1 { margin-bottom: var(--space-4); }
.arcana-detail__lead,.lunar-phase-detail__lead { color: var(--text-soft); font-size: var(--text-md); }
.arcana-meanings { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin: var(--space-8) 0; overflow: hidden; border: 1px solid var(--glass-line-soft); border-radius: var(--radius-md); background: var(--glass-line-soft); }
.arcana-meanings section { padding: var(--space-5); background: rgba(8, 17, 24, .9); }
.arcana-meanings small,.arcana-practice small,.lunar-phase-practice small { color: var(--state-info); font: 600 .68rem/1.4 var(--font-mono); text-transform: uppercase; letter-spacing: .06em; }
.arcana-meanings p { margin: 8px 0 0; color: var(--text-soft); }
.arcana-practice,.lunar-phase-practice { margin: var(--space-8) 0 var(--space-5); padding: var(--space-6); border: 1px solid rgba(214, 168, 95, .2); border-radius: var(--radius-md); background: linear-gradient(135deg, rgba(15, 38, 51, .66), rgba(44, 32, 20, .42)); }
.arcana-practice { display: grid; grid-template-columns: 1fr auto; gap: var(--space-5); align-items: center; }
.arcana-practice h2,.lunar-phase-practice h2 { margin: 7px 0; font-size: var(--text-xl); }
.arcana-practice p,.lunar-phase-practice p { margin: 0; color: var(--text-soft); }

.lunar-phase-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-4); }
.lunar-phase-tile { display: grid; grid-template-columns: 78px minmax(0, 1fr) 40px; gap: var(--space-5); align-items: center; padding: var(--space-5); border: 1px solid rgba(173, 207, 220, .14); border-radius: var(--radius-md); background: linear-gradient(135deg, rgba(9, 31, 45, .82), rgba(16, 22, 30, .76)); transition: border-color var(--dur-default) var(--ease-default), box-shadow var(--dur-default) var(--ease-default); }
.lunar-phase-tile:hover,.lunar-phase-tile:focus-visible { border-color: rgba(185, 222, 235, .3); box-shadow: inset 0 1px rgba(223, 242, 248, .06), 0 20px 46px rgba(0, 0, 0, .2); outline: none; }
.lunar-phase-tile__orb,.lunar-phase-detail__orb { display: block; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle at 34% 32%, #eef4f2 0 18%, #aebbc2 43%, #394852 72%, #111b24); box-shadow: 0 0 26px rgba(190, 220, 232, .2); }
.lunar-phase-tile[data-phase="new"] .lunar-phase-tile__orb { filter: brightness(.28); }
.lunar-phase-tile[data-phase="full"] .lunar-phase-tile__orb { filter: brightness(1.18); }
.lunar-phase-tile strong { display: block; }
.lunar-phase-tile p { margin: 5px 0; color: var(--text-soft); }
.lunar-phase-tile small { color: var(--text-muted); }
.lunar-phase-tile i { color: var(--state-info); font-style: normal; text-align: center; }
.lunar-phase-detail { display: grid; grid-template-columns: minmax(260px, 340px) minmax(0, 760px); gap: clamp(36px, 7vw, 90px); align-items: start; margin-top: 34px; }
.lunar-phase-detail aside { position: sticky; top: 108px; display: grid; gap: var(--space-6); }
.lunar-phase-detail__orb { width: min(280px, 80vw); margin-inline: auto; box-shadow: 0 0 30px rgba(190, 220, 232, .22), 0 0 90px rgba(97, 153, 181, .12); }
.lunar-phase-detail .prose { margin-block: var(--space-8); color: var(--text-soft); }
.lunar-phase-detail__tags { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.lunar-phase-detail__tags span { padding: 7px 11px; border: 1px solid rgba(139, 190, 210, .2); border-radius: var(--radius-pill); color: var(--text-soft); font-size: var(--text-xs); }
.lunar-phase-practice .btn { margin-top: var(--space-5); }

.learning-track-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-4); }
.learning-track-card { display: grid; grid-template-columns: 36px minmax(0, 1fr) 34px; gap: var(--space-4); align-items: start; padding: var(--space-5); border: 1px solid var(--glass-line-soft); border-radius: var(--radius-md); background: linear-gradient(145deg, rgba(10, 31, 43, .82), rgba(26, 25, 27, .7)); box-shadow: inset 0 1px rgba(222, 241, 247, .035); transition: border-color var(--dur-default) var(--ease-default), background var(--dur-default) var(--ease-default), box-shadow var(--dur-default) var(--ease-default); }
.learning-track-card:hover,.learning-track-card:focus-visible { border-color: rgba(173, 207, 220, .28); background: linear-gradient(145deg, rgba(14, 40, 55, .9), rgba(48, 34, 21, .7)); box-shadow: inset 0 1px rgba(235, 246, 249, .07), 0 18px 42px rgba(0, 0, 0, .2); outline: none; }
.learning-track-card__number { color: var(--state-info); font: 600 .7rem/1.5 var(--font-mono); }
.learning-track-card__copy strong { display: block; line-height: 1.35; }
.learning-track-card__copy p { margin: 8px 0 12px; color: var(--text-soft); font-size: var(--text-sm); }
.learning-track-card__copy small { color: var(--text-muted); }
.learning-track-card > i { color: var(--accent-amber-light); font-style: normal; text-align: center; }
.learning-module { max-width: 1040px; margin-top: var(--space-8); }
.learning-module > header { display: flex; justify-content: space-between; gap: var(--space-5); align-items: end; margin-bottom: var(--space-4); }
.learning-module > header h2 { margin: 4px 0 0; }
.learning-module > header > span { color: var(--text-muted); font-size: var(--text-sm); }
.learning-item-list { overflow: hidden; margin: 0; padding: 0; list-style: none; border: 1px solid var(--glass-line-soft); border-radius: var(--radius-lg); background: rgba(7, 20, 28, .72); }
.learning-item-list li + li { border-top: 1px solid var(--glass-line-soft); }
.learning-item-list a { display: grid; grid-template-columns: 38px minmax(0, 1fr) auto 34px; gap: var(--space-4); align-items: center; padding: var(--space-4) var(--space-5); transition: background var(--dur-default) var(--ease-default); }
.learning-item-list a:hover,.learning-item-list a:focus-visible { background: linear-gradient(90deg, rgba(23, 62, 78, .36), rgba(78, 55, 28, .18)); outline: none; }
.learning-item-list__index { color: var(--state-info); font: 600 .68rem/1.4 var(--font-mono); }
.learning-item-list strong,.learning-item-list small { display: block; }
.learning-item-list small { margin-top: 5px; color: var(--text-muted); }
.learning-item-list i { color: var(--accent-amber-light); font-style: normal; text-align: center; }
.learning-status { display: inline-flex; width: fit-content; padding: 5px 9px; border: 1px solid rgba(168, 190, 200, .15); border-radius: var(--radius-pill); color: var(--text-muted); font: 600 .64rem/1.3 var(--font-mono); text-transform: uppercase; letter-spacing: .05em; white-space: nowrap; }
.learning-status.is-ready { border-color: rgba(126, 190, 164, .25); color: var(--state-success); }
.learning-detail { display: grid; grid-template-columns: minmax(190px, 250px) minmax(0, 760px); gap: clamp(36px, 7vw, 92px); align-items: start; margin-top: var(--space-8); }
.learning-detail__rail { display: grid; gap: var(--space-4); }
.learning-detail__back { color: var(--text-soft); }
.learning-detail__content h1 { margin-bottom: var(--space-4); }
.learning-detail__lead { color: var(--text-soft); font-size: var(--text-md); }
.learning-pending { display: grid; grid-template-columns: 38px minmax(0, 1fr); gap: var(--space-4); margin-top: var(--space-8); padding: var(--space-5); border: 1px solid rgba(156, 199, 216, .18); border-radius: var(--radius-md); background: linear-gradient(135deg, rgba(11, 40, 54, .72), rgba(31, 28, 28, .5)); }
.learning-pending > span { color: var(--state-info); text-align: center; text-shadow: 0 0 16px rgba(150, 219, 241, .55); }
.learning-pending p { margin: 7px 0 0; color: var(--text-soft); }

@media (max-width: 1120px) { .arcana-grid,.learning-track-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 820px) { .knowledge-hub__intro,.arcana-detail,.lunar-phase-detail,.learning-detail { grid-template-columns: 1fr; }.knowledge-hub__intro { align-items: start; }.arcana-grid,.lunar-phase-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }.arcana-detail__visual,.lunar-phase-detail aside { position: static; }.arcana-detail__visual { width: min(320px, 82vw); margin-inline: auto; }.learning-item-list a { grid-template-columns: 30px minmax(0, 1fr) 30px; }.learning-item-list .learning-status { grid-column: 2; }.learning-detail__rail { gap: var(--space-3); } }
@media (max-width: 560px) { .knowledge-hub { padding-bottom: 60px; }.arcana-grid,.lunar-phase-grid,.learning-track-grid { grid-template-columns: 1fr; }.arcana-practice,.arcana-meanings { grid-template-columns: 1fr; }.arcana-practice .btn { width: 100%; }.lunar-phase-tile { grid-template-columns: 64px minmax(0, 1fr) 28px; padding: var(--space-4); gap: var(--space-3); }.learning-item-list a { padding: var(--space-4); gap: var(--space-3); } }