/* ===================================================================
   Capabilities dropdown in nav
   =================================================================== */
.nav-cap { position: relative; }
.nav-cap-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}
.nav-cap-trigger .nav-caret {
  opacity: 0.6;
  transition: transform .18s ease, opacity .18s ease;
}
.nav-cap.open .nav-cap-trigger,
.nav-cap-trigger.is-active {
  color: var(--text);
}
.nav-cap.open .nav-caret {
  transform: rotate(180deg);
  opacity: 1;
}

/* The menu hangs below the trigger. A transparent buffer area keeps
   the hover connection alive between trigger and panel. */
.cap-menu {
  position: absolute;
  top: 100%;
  left: 0;
  transform: translateY(4px);
  padding-top: 14px; /* hover buffer */
  min-width: 620px;
  opacity: 0;
  pointer-events: none;
  z-index: 50;
}
.nav-cap.open .cap-menu {
  opacity: 1 !important;
  pointer-events: auto !important;
  transform: translateY(0) !important;
}
.cap-menu-inner {
  background: oklch(0.14 0.025 230 / 0.96);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 24px 60px -20px rgba(0,0,0,0.6), 0 2px 6px rgba(0,0,0,0.3);
  overflow: hidden;
}
.cap-menu-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line-soft);
}
.cap-menu-sub {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-mute);
}
.cap-menu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line-soft);
}
.cap-menu-item {
  position: relative;
  display: block;
  padding: 18px 20px 20px;
  background: oklch(0.14 0.025 230);
  color: var(--text);
  transition: background .14s ease;
}
.cap-menu-item:hover {
  background: oklch(0.17 0.03 230);
}
.cap-menu-item.active {
  background: oklch(0.19 0.035 225);
}
.cap-menu-item.active::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--text);
}
.cap-menu-num {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--text-mute);
  margin-bottom: 6px;
}
.cap-menu-label {
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 3px;
}
.cap-menu-desc {
  font-size: 12.5px;
  color: var(--text-dim);
  line-height: 1.4;
}
.cap-menu-arr {
  position: absolute;
  top: 20px;
  right: 18px;
  color: var(--text-mute);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity .15s ease, transform .15s ease, color .15s ease;
}
.cap-menu-item:hover .cap-menu-arr {
  opacity: 1;
  transform: translateX(0);
  color: var(--text);
}
.cap-menu-foot {
  padding: 12px 20px;
  border-top: 1px solid var(--line-soft);
  background: oklch(0.12 0.022 230);
  display: flex;
  justify-content: flex-end;
}

@media (max-width: 900px) {
  .cap-menu { min-width: 520px; }
}
@media (max-width: 640px) {
  /* Menu is inside the hidden nav-links on mobile — no extra work */
}

/* ===================================================================
   Capability sub-page shell
   =================================================================== */
.cap-page {
  padding-top: 120px;
  padding-bottom: 80px;
  min-height: 70vh;
}
.cap-page-head {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 60px;
  align-items: end;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 40px;
}
.cap-page-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 22px;
}
.cap-page-head h1 {
  font-family: var(--font-serif);
  font-size: clamp(48px, 6vw, 88px);
  line-height: 1.05;
  letter-spacing: -0.015em;
  font-weight: 400;
  margin: 12px 0 0;
  padding-bottom: 0.08em;
}
.cap-page-head h1 .serif {
  font-style: italic;
  background: linear-gradient(100deg, oklch(0.88 0.10 215) 0%, oklch(0.70 0.14 245) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.cap-page-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-mute);
}
.cap-page-sub {
  font-size: 15px;
  color: var(--text-dim);
  line-height: 1.55;
  max-width: 42ch;
  margin: 0;
  text-align: right;
}
.cap-page-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 100px;
  background: var(--bg-elev);
  white-space: nowrap;
}
.cap-page-nav a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 100px;
  font-size: 12.5px;
  color: var(--text-dim);
  transition: background .14s, color .14s;
}
.cap-page-nav a:hover { color: var(--text); }
.cap-page-nav a.active {
  background: var(--text);
  color: oklch(0.18 0.03 230);
  font-weight: 500;
}
.cap-page-nav .nm {
  font-family: var(--font-mono);
  font-size: 10px;
  opacity: 0.55;
}
.cap-page-nav a.active .nm { opacity: 0.6; }

.cap-placeholder {
  border: 1px dashed var(--line);
  border-radius: 12px;
  padding: 80px 40px;
  text-align: center;
  color: var(--text-mute);
  background:
    repeating-linear-gradient(
      -45deg,
      transparent 0 14px,
      oklch(0.17 0.025 230 / 0.35) 14px 15px
    );
}
.cap-placeholder .label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 8px;
}
.cap-placeholder .msg {
  font-size: 18px;
  color: var(--text);
  letter-spacing: -0.01em;
}
.cap-placeholder .hint {
  font-size: 13px;
  color: var(--text-mute);
  margin-top: 6px;
}

@media (max-width: 820px) {
  .cap-page-head {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 28px;
  }
  .cap-page-meta { align-items: flex-start; }
  .cap-page-sub { text-align: left; max-width: none; }
  .cap-page-nav { overflow-x: auto; }
}