.mt-theory { margin: var(--space-md) 0; padding: var(--space-md); background: var(--color-cream); border: 1px solid var(--color-sand); border-radius: var(--radius-lg); }
.mt-head h2 { margin-bottom: var(--space-xs); font-size: clamp(1.6rem, 3.5vw, 2.3rem); }
.mt-note, .mt-hint, .mt-small { color: var(--color-muted); font-size: 0.85rem; line-height: 1.6; }
.mt-small a, .mt-note a { color: var(--color-logo); text-decoration: underline; }
.mt-layout { display: grid; gap: var(--space-md); margin-top: var(--space-md); }
.mt-layout > * { min-width: 0; }
.mt-theory [hidden] { display: none !important; }
.mt-theory ul, .mt-theory ol, .mt-steps, .mt-article-grid { list-style: none; padding-left: 0; }
@media (min-width: 900px) { .mt-layout--circle { grid-template-columns: minmax(240px, 0.85fr) minmax(0, 1fr); align-items: start; } }

.mt-circle { container-type: inline-size; position: relative; width: 100%; max-width: 360px; aspect-ratio: 1; margin: 0 auto; border-radius: 50%; background: radial-gradient(circle, var(--color-cream) 55%, var(--color-sand) 56%, var(--color-sand) 57%, var(--color-cream) 58%); }
.mt-node { position: absolute; left: 50%; top: 50%; width: 3.3rem; height: 3.3rem; margin: -1.65rem 0 0 -1.65rem;
  transform: rotate(calc(var(--i) * 30deg)) translateY(-40cqw) rotate(calc(var(--i) * -30deg));
  display: flex; flex-direction: column; align-items: center; justify-content: center; line-height: 1.1;
  border: 1.5px solid var(--color-sand); border-radius: 50%; background: var(--color-cream); color: var(--color-dark); cursor: pointer; font-family: var(--font-body);
  transition: background var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition); }
@media (max-width: 420px) { .mt-node { width: 2.8rem; height: 2.8rem; margin: -1.4rem 0 0 -1.4rem; } }
.mt-node-major { font-family: var(--font-display); font-size: 1.15rem; font-weight: 500; }
.mt-node-minor { font-size: 0.65rem; color: var(--color-muted); }
.mt-node:hover { border-color: var(--color-gold); }
.mt-node:focus-visible { outline: 2px solid var(--color-logo); outline-offset: 3px; }
.mt-node.is-active { background: var(--color-logo); border-color: var(--color-logo); color: var(--color-cream); box-shadow: 0 6px 18px color-mix(in srgb, var(--color-dark) 18%, transparent); }
.mt-node.is-active .mt-node-minor { color: var(--color-cream); }
.mt-circle-center { position: absolute; inset: 34%; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.mt-center-key { font-family: var(--font-display); font-size: 2.4rem; color: var(--color-dark); line-height: 1; }
.mt-center-sub { font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-gold); }
.mt-hint { text-align: center; margin-top: var(--space-sm); }

.mt-facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: var(--space-xs); margin-bottom: var(--space-sm); }
.mt-facts > div { background: var(--color-cream); border: 1px solid var(--color-sand); border-radius: var(--radius-md); padding: 0.6rem 0.9rem; }
.mt-facts dt { font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-gold); }
.mt-facts dd { font-family: var(--font-display); font-size: 1.25rem; color: var(--color-dark); }

.mt-keyboard-fig { margin: var(--space-sm) 0; }
.mt-keyboard { width: 100%; height: auto; display: block; }
.mt-k rect { fill: var(--color-cream); stroke: var(--color-mid); stroke-width: 1; transition: fill var(--transition); }
.mt-k--black rect { fill: var(--color-dark); stroke: var(--color-dark); }
.mt-k.is-on rect { fill: var(--color-gold-light); }
.mt-k--black.is-on rect { fill: var(--color-gold); }
.mt-k.is-root rect { fill: var(--color-logo); }
.mt-k text { font: 600 11px var(--font-body); fill: var(--color-dark); }
.mt-k--black text, .mt-k.is-root text { fill: var(--color-cream); }
.mt-keyboard-fig figcaption { font-size: 0.8rem; color: var(--color-muted); margin-top: 0.4rem; }

.mt-table-wrap { overflow-x: auto; }
.mt-fingers { width: 100%; border-collapse: collapse; font-size: 0.9rem; min-width: 420px; }
.mt-fingers caption { text-align: left; font-size: 0.8rem; color: var(--color-muted); padding-bottom: 0.4rem; }
.mt-fingers th, .mt-fingers td { padding: 0.4rem; text-align: center; border-bottom: 1px solid var(--color-sand); }
.mt-fingers th[scope="row"] { text-align: left; font-weight: 500; color: var(--color-dark); white-space: nowrap; }
.mt-fingers thead th { font-family: var(--font-display); font-size: 1.1rem; color: var(--color-logo); }

.mt-sub { font-size: 1.35rem; margin: var(--space-md) 0 var(--space-xs); }
.mt-triads { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: var(--space-xs); }
.mt-triads li { display: flex; flex-direction: column; padding: 0.6rem 0.8rem; border: 1px solid var(--color-sand); border-radius: var(--radius-md); background: var(--color-cream); }
.mt-degree { font-size: 0.72rem; letter-spacing: 0.1em; color: var(--color-gold); }
.mt-triad-name { font-weight: 500; color: var(--color-dark); }
.mt-triad-notes { font-size: 0.82rem; color: var(--color-muted); }
.mt-actions { display: flex; flex-wrap: wrap; gap: var(--space-xs); margin-top: var(--space-md); }
.mt-actions [hidden], .mt-theory [hidden] { display: none; }
.mt-actions .btn:focus-visible { outline: 2px solid var(--color-logo); outline-offset: 2px; }

.mt-links ul { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.mt-links a { display: inline-block; padding: 0.35rem 0.85rem; border: 1px solid var(--color-sand); border-radius: var(--radius-sm); font-size: 0.85rem; color: var(--color-logo); transition: border-color var(--transition), background var(--transition); }
.mt-links a:hover, .mt-links a:focus-visible { border-color: var(--color-logo); background: var(--color-cream); }

.mt-updated { animation: mt-fade 0.25s ease; }
@keyframes mt-fade { from { opacity: 0.4; } to { opacity: 1; } }

.mt-hub .breadcrumb { margin-bottom: var(--space-md); }
.mt-pattern { display: grid; gap: var(--space-md); align-items: center; margin-bottom: var(--space-md); }
@media (min-width: 900px) { .mt-pattern { grid-template-columns: 1.2fr 1fr; } }
.mt-pattern h2 { margin-bottom: var(--space-sm); }
.mt-pattern p { color: var(--color-text); max-width: 60ch; }
.mt-steps { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; counter-reset: s; }
.mt-steps li { text-align: center; padding: 0.7rem 0.2rem; background: var(--color-sand); border-radius: var(--radius-sm); font-size: 0.8rem; color: var(--color-dark); }
.mt-steps li.is-half { background: var(--color-gold); color: var(--color-dark); }
.mt-articles { margin-top: var(--space-lg); }
.mt-article-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: var(--space-sm); margin-bottom: var(--space-sm); }
.mt-article-card { display: flex; gap: var(--space-sm); align-items: center; padding: var(--space-sm); background: var(--color-cream); border: 1px solid var(--color-sand); border-radius: var(--radius-lg); transition: transform var(--transition), box-shadow var(--transition); }
.mt-article-card:hover { transform: translateY(-2px); box-shadow: 0 8px 24px color-mix(in srgb, var(--color-dark) 8%, transparent); }
.mt-article-card:focus-visible { outline: 2px solid var(--color-logo); outline-offset: 2px; }
.mt-article-key { width: 3rem; height: 3rem; flex-shrink: 0; border-radius: 50%; background: var(--color-logo); color: var(--color-cream); display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-size: 1.3rem; }
.mt-article-meta { display: flex; flex-direction: column; }
.mt-article-meta strong { font-weight: 500; color: var(--color-dark); }
.mt-article-meta small { color: var(--color-muted); font-size: 0.8rem; }

@media (max-width: 600px) { .mt-theory { padding: var(--space-sm); } }
@media (prefers-reduced-motion: reduce) {
  .mt-node, .mt-k rect, .mt-article-card, .mt-links a { transition: none; }
  .mt-updated { animation: none; }
  .mt-article-card:hover { transform: none; }
}

/* Compact key answer */
.mt-answer { margin: var(--space-sm) 0 var(--space-md); padding: var(--space-sm) var(--space-md); background: var(--color-cream); border: 1px solid var(--color-sand); border-left: 3px solid var(--color-gold); border-radius: var(--radius-md); }
.mt-answer-title { font-size: clamp(1.25rem, 2.5vw, 1.6rem); margin-bottom: var(--space-xs); }
.mt-answer-alias, .mt-answer-foot { font-size: 0.82rem; color: var(--color-muted); line-height: 1.6; }
.mt-answer-text { font-size: 0.95rem; color: var(--color-text); max-width: 65ch; margin-bottom: var(--space-xs); }
.mt-answer-notes { display: flex; flex-wrap: wrap; gap: 0.35rem; margin: var(--space-xs) 0; }
.mt-answer-notes li { min-width: 2.4rem; padding: 0.25rem 0.5rem; text-align: center; font-family: var(--font-display); font-size: 1.15rem; color: var(--color-dark); background: var(--color-sand); border-radius: var(--radius-sm); }
.mt-answer-notes li.is-root { background: var(--color-logo); color: var(--color-cream); }
.mt-answer-facts { display: flex; flex-wrap: wrap; gap: var(--space-xs) var(--space-md); margin-bottom: var(--space-xs); }
.mt-answer-facts dt { font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-gold); }
.mt-answer-facts dd { font-size: 0.95rem; color: var(--color-dark); font-weight: 500; }
.mt-answer-foot a { color: var(--color-logo); font-weight: 500; text-decoration: underline; text-underline-offset: 2px; }
.mt-answer-foot a:focus-visible { outline: 2px solid var(--color-logo); outline-offset: 2px; }
@media (max-width: 600px) { .mt-answer { padding: var(--space-sm); } }