/* ── Reset ── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

/* ── CSS Custom Properties ── */
:root {
  --panel-bg: #faf9f5;
  --panel-text: #2d2d2d;
  --panel-muted: #8a847c;
  --panel-subtle: #6a6560;
  --panel-border: #ddd8d0;
  --panel-accent: #6b93a8;
  --body-bg-right: #faf9f5;
  --drawer-bg: #292F36;
}


/* ── Logo ── */
a.logo {
  position: fixed;
  top: 2.5rem;
  left: 3.5rem;
  z-index: 150;
  display: inline-block;
  line-height: 1;
  text-decoration: none;
  font-family: "Dancing Script", cursive;
  font-size: 2.6rem;
  font-weight: 500;
  color: #6b93a8;
  letter-spacing: 0.01em;
}

/* ── Cell icon nav badge (fixed, always visible) ── */
.cell-nav-wrap {
  position: fixed;
  top: 0;
  right: 0;
  width: 82px;
  height: 82px;
  z-index: 300;
  cursor: pointer;
  background: rgba(41, 47, 54, 0.88);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  transition: background 0.2s;
}

.cell-nav-wrap:hover {
  background: rgba(41, 47, 54, 1);
}

.cell-nav-svg {
  width: 100%;
  height: auto;
  display: block;
}

/* ── Overlay ── */
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 349;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s;
}

.drawer-overlay.open {
  opacity: 1;
  pointer-events: all;
}

/* ── Drawer ── */
.drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 300px;
  height: 100%;
  background: #292F36;
  z-index: 350;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  padding: 3rem 2.5rem;
}

.drawer.open {
  transform: translateX(0);
}

.drawer-subtitle {
  font-family: "Montserrat", "Noto Sans KR", sans-serif;
  font-size: 1.1rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 2.5rem;
  overflow: hidden;
  height: 1.5em;
  position: relative;
}

.drawer-subtitle span {
  display: block;
  position: absolute;
  width: 100%;
}

.drawer nav ul {
  list-style: none;
}

.drawer nav ul li {
  margin: 0;
}

.drawer nav ul li a {
  font-family: "Cormorant Garamond", serif;
  font-size: 2.1rem;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  letter-spacing: 0.03em;
  display: block;
  padding: 0.45rem 0;
  transition: color 0.2s;
}

.drawer nav ul li a:hover {
  color: #fff;
}

/* ── Research submenu ── */
.drawer-research-row {
  display: flex;
  align-items: center;
  gap: 0.5em;
}

.drawer-research-link {
  font-family: "Cormorant Garamond", serif;
  font-size: 2.1rem;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.03em;
  text-decoration: none;
  transition: color 0.2s;
  padding: 0.45rem 0;
  flex: 1;
}

.drawer-research-link:hover {
  color: #fff;
}

.drawer-research-toggle {
  display: flex;
  align-items: center;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0.45rem 0.2rem;
  transition: color 0.2s;
}

.drawer-research-toggle:hover {
  color: #fff;
}

.drawer-research-arrow {
  display: inline-block;
  font-size: 1rem;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  color: rgba(255,255,255,0.4);
  margin-left: 0.2em;
}

.drawer-research-toggle.open .drawer-research-arrow {
  transform: rotate(90deg);
}

.drawer-subnav {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.25s;
  opacity: 0;
}

.drawer-subnav.open {
  max-height: 300px;
  opacity: 1;
}

.drawer .drawer-subnav a {
  display: block;
  font-family: "Montserrat", sans-serif;
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
  text-decoration: none;
  padding: 0.35rem 0 0.35rem 1.1rem;
  transition: color 0.2s;
  border-left: 1px solid rgba(255,255,255,0.15);
  margin-left: 0.2rem;
}

.drawer .drawer-subnav a:hover {
  color: rgba(255, 255, 255, 0.9);
}

.close-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  cursor: pointer;
  color: rgba(255, 255, 255, 0.55);
  font-size: 1.3rem;
  text-decoration: none;
  line-height: 1;
  transition: color 0.2s;
  background: none;
  border: none;
  padding: 0;
}

.close-btn:hover {
  color: #fff;
}


/* ── Shared panel utility classes ── */
.pubs-section-label {
  display: block;
  font-family: "Montserrat", sans-serif;
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: #8a847c;
  margin-bottom: 2rem;
}


/* ── Mobile responsive ── */
@media (max-width: 768px) {
  a.logo {
    font-size: 1.9rem;
    left: 1.25rem;
    top: 1.25rem;
  }

  .cell-nav-wrap {
    width: 60px;
    height: 60px;
    padding: 8px;
  }

  .drawer {
    width: 100%;
    padding: 2.5rem 2rem;
  }

  .drawer nav ul li a,
  .drawer-research-toggle {
    font-size: 1.75rem;
  }
}

/* ── Site footer ── */
.site-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 260;
  font-family: "Montserrat", sans-serif;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: #fff;
  text-align: center;
  padding: 0.5rem 0;
  background: rgba(41, 47, 54, 0.88);
  backdrop-filter: blur(4px);
  pointer-events: none;
}

/* ── Shared JS snippet for drawer + cell pulse ── */