/* ============================================================
   GLOSSOLALIE ADVISORY — Frameworks page styles
   ============================================================ */

/* Framework page nav */
.framework-nav {
  background: var(--white);
  border-bottom: var(--border-thin);
  position: sticky;
  top: var(--nav-height);
  z-index: var(--z-dropdown);
  box-shadow: var(--shadow-sm);
}

.framework-nav__list {
  display: flex;
  gap: 0;
  list-style: none;
  overflow-x: auto;
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.framework-nav__list::-webkit-scrollbar { display: none; }

.framework-nav__list a {
  display: inline-block;
  padding: var(--space-4) var(--space-6);
  font-family: var(--font-body);
  font-weight: var(--weight-medium);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--grey-600);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.framework-nav__list a:hover {
  color: var(--navy-profond);
  border-bottom-color: var(--teal-signal);
}

.framework-nav__list a:focus-visible {
  outline: 2px solid var(--teal-signal);
  outline-offset: -2px;
}

/* Framework section */
.framework-section {
  padding: clamp(var(--space-16), 6vw, var(--space-24)) 0;
  border-bottom: var(--border-thin);
}

.framework-section--alt {
  background: var(--grey-100);
}

/* Framework detail layout */
.framework-detail {}

.framework-detail__header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-8);
  margin-bottom: var(--space-10);
  padding-bottom: var(--space-8);
  border-bottom: var(--border-thin);
}

.framework-detail__badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-5) var(--space-6);
  background: var(--navy-profond);
  border-radius: var(--radius-md);
  min-width: 100px;
  flex-shrink: 0;
}

.framework-detail__acronym {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: var(--weight-semibold);
  color: var(--white);
  line-height: 1;
  letter-spacing: var(--tracking-tight);
}

.framework-detail__acronym sup {
  font-size: 0.45em;
  vertical-align: super;
  color: var(--teal-signal);
}

.framework-detail__index {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.35);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.framework-detail__name {
  font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl));
  margin-bottom: var(--space-3);
}

.framework-detail__tagline {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-style: italic;
  font-weight: var(--weight-regular);
  color: var(--grey-600);
  margin-bottom: 0;
  max-width: none;
}

/* Body grid */
.framework-detail__body {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: var(--space-12);
  align-items: start;
}

.framework-detail__main h3 {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--teal-signal);
  margin-bottom: var(--space-3);
  margin-top: var(--space-8);
}

.framework-detail__main h3:first-child { margin-top: 0; }

.framework-detail__main p {
  color: var(--grey-700);
  line-height: var(--leading-relaxed);
  max-width: 72ch;
}

/* Meta sidebar */
.framework-detail__meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.meta-card {
  background: var(--white);
  border: var(--border-thin);
  border-left: 3px solid var(--teal-signal);
  padding: var(--space-5) var(--space-6);
  border-radius: 0 var(--radius-base) var(--radius-base) 0;
}

.framework-section--alt .meta-card {
  background: var(--white);
}

.meta-card h4 {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--teal-signal);
  margin-bottom: var(--space-3);
}

.meta-card p,
.meta-card li {
  font-size: var(--text-sm);
  color: var(--grey-700);
  line-height: var(--leading-normal);
  margin-bottom: 0;
}

.meta-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding-left: 0;
}

.meta-card ul li::before {
  content: '→ ';
  color: var(--teal-signal);
  font-size: var(--text-xs);
}

/* Layer diagram */
.layer-diagram {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin: var(--space-8) 0;
  padding: var(--space-6);
  background: var(--grey-100);
  border-radius: var(--radius-md);
}

.framework-section--alt .layer-diagram {
  background: var(--white);
}

.layer-diagram__item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  width: var(--layer-width, 100%);
  padding: var(--space-3) var(--space-5);
  background: var(--layer-color, #0D9488);
  border-radius: var(--radius-sm);
  min-width: 180px;
}

/* Layer colours and widths — hardcoded via nth-child (5 layers, fixed) */
.layer-diagram__item:nth-child(1) { --layer-color: #0D9488; --layer-width: 100%; }
.layer-diagram__item:nth-child(2) { --layer-color: #1E6B62; --layer-width: 88%; }
.layer-diagram__item:nth-child(3) { --layer-color: #1D5C8C; --layer-width: 76%; }
.layer-diagram__item:nth-child(4) { --layer-color: #2D5180; --layer-width: 64%; }
.layer-diagram__item:nth-child(5) { --layer-color: #1E3A5F; --layer-width: 52%; }

.layer-diagram__number {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: rgba(255,255,255,0.5);
  min-width: 1rem;
}

.layer-diagram__label {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: rgba(255,255,255,0.9);
  white-space: nowrap;
}

/* Responsive */
@media (max-width: 900px) {
  .framework-detail__body { grid-template-columns: 1fr; }
  .framework-detail__meta { margin-top: var(--space-8); }
}

@media (max-width: 640px) {
  .framework-detail__header { flex-direction: column; gap: var(--space-5); }
  .framework-detail__badge { flex-direction: row; min-width: auto; width: 100%; justify-content: space-between; }
  .layer-diagram__item { width: 100% !important; }
}