/* ═══════════════ TOP NAV (shared) ═══════════════ */
nav {
  position: fixed; top: 0; left: 0; right: 0;
  height: 72px; z-index: 100;
  background: rgba(245,241,232,0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--rule);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 44px 0 84px;
}
.nav-mark {
  font-size: 1.4rem; font-weight: 500; letter-spacing: -0.01em;
  color: var(--ink); text-decoration: none; cursor: pointer;
}
.nav-mark i { font-style: italic; font-weight: 400; }
.nav-links { display: flex; gap: 30px; align-items: center; }
.nav-links a {
  font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--ink-mute); font-weight: 600;
  text-decoration: none; transition: color 0.3s;
}
.nav-links a:hover, .nav-links a.active { color: var(--accent); }
.nav-meta {
  font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--ink-mute); font-weight: 600;
}

@media (max-width: 720px) {
  nav { padding: 0 22px 0 84px; height: 64px; }
  .nav-links { gap: 16px; }
  .nav-links a { font-size: 0.62rem; letter-spacing: 0.1em; }
  .nav-meta { display: none; }
  .nav-mark { font-size: 1.2rem; }
}

/* ═══════════════ SIDEBAR (shared across all pages) ═══════════════ */
.sidebar-toggle {
  position: fixed; top: 0; left: 0;
  width: 72px; height: 72px; z-index: 200;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; background: none; border: none; padding: 0;
}
.sidebar-toggle svg {
  width: 26px; height: 22px;
  transition: transform 0.35s ease;
}
.sidebar-toggle svg line {
  stroke: var(--ink);
  stroke-width: 2;
  stroke-linecap: square;
  transition: transform 0.35s ease, opacity 0.35s ease;
  transform-origin: center;
}
.sidebar-toggle.open svg line:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}
.sidebar-toggle.open svg line:nth-child(2) {
  opacity: 0;
}
.sidebar-toggle.open svg line:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

.sidebar-overlay {
  position: fixed; inset: 0; z-index: 149;
  background: rgba(26,24,20,0.45);
  opacity: 0; pointer-events: none;
  transition: opacity 0.4s ease;
}
.sidebar-overlay.open { opacity: 1; pointer-events: all; }

.sidebar {
  position: fixed; top: 0; left: 0;
  width: 280px; height: 100vh; z-index: 150;
  background: var(--paper); border-right: 1px solid var(--rule);
  transform: translateX(-100%);
  transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
  overflow-y: auto; padding: 88px 0 48px;
  display: flex; flex-direction: column;
}
.sidebar.open { transform: translateX(0); }

.sidebar-section {
  width: 100%;
  display: block;
  border-bottom: 1px solid var(--rule);
}
.sidebar-parent {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%;
  background: none; border: none; cursor: pointer;
  font-family: var(--serif); font-size: 0.72rem;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--ink); font-weight: 700;
  padding: 14px 20px;
  transition: color 0.3s;
  text-align: left;
}
.sidebar-parent:hover { color: var(--accent); }
.sidebar-parent svg { transition: transform 0.35s ease; flex-shrink: 0; }
.sidebar-parent.open svg { transform: rotate(180deg); }

.sidebar-children {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.4s ease;
}
.sidebar-children > * {
  overflow: hidden;
  min-height: 0;
}
.sidebar-children.open {
  grid-template-rows: 1fr;
}

.sidebar-link {
  display: block; text-decoration: none;
  font-size: 0.94rem; color: var(--ink-soft);
  padding: 8px 20px; line-height: 1.4;
  transition: color 0.3s, padding-left 0.3s;
  font-weight: 400;
}
.sidebar-link:hover { color: var(--accent); padding-left: 26px; }

.sidebar-direct {
  display: block;
  width: 100%;
  text-decoration: none;
  font-size: 0.72rem; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--ink); font-weight: 700;
  padding: 14px 20px;
  border-bottom: 1px solid var(--rule);
  transition: color 0.3s;
  text-align: left;
}
.sidebar-direct:hover { color: var(--accent); }

/* ═══════════════ FOOTER (shared) ═══════════════ */
footer.site-footer {
  position: relative; z-index: 2;
  background: var(--ink); padding: 80px 44px 56px;
  text-align: center;
}
.footer-mark {
  font-family: var(--display);
  font-size: 2rem; color: var(--cream);
  font-style: italic; margin-bottom: 28px;
}
.footer-rule {
  font-size: 0.68rem; letter-spacing: 0.25em;
  text-transform: uppercase;
  color: rgba(245,241,232,0.4); line-height: 2;
}
.footer-rule a {
  color: rgba(245,241,232,0.8);
  text-decoration: none;
  transition: color 0.3s;
}
.footer-rule a:hover { color: var(--cream); }