6 CSS Mega Menus & Dropdown Menus
Biophilic Studio
Warm, earthy linen palette with a contained paper-grain texture overlay. Fraunces variable serif (italic display) drives the navigation links, DM Sans handles metadata. The Projects panel features a tall photography column with a gradient caption overlay; the Journal panel includes editorial thumbnail cards with title + meta. Botanical SVG leaf motifs appear as column corner accents, a subtle terra-cotta underline swipes in on hover, and organic dot indicators sit beside each nav item. Best for architecture studios, interior design, sustainable brands, cultural institutions.
Biophilic Studio the 3rd of 6 designs in the 6 CSS Mega Menus & Dropdown Menus collection. The design pairs CSS styling with a small amount of JavaScript for interactivity. Copy the HTML, CSS and JavaScript panels below into your project — the JS is self-contained, has zero dependencies, and is safe to drop into any framework (React, Vue, Svelte, plain HTML). The design honours prefers-reduced-motion and uses real semantic markup, so it ships accessibility-ready out of the box.
Live preview
The code
<nav class="mm-bio" aria-label="Biophilic Studio main menu">
<ul class="nav-bar" role="menubar">
<!-- PROJECTS -->
<li class="nav-item" role="none">
<button type="button" class="nav-trigger" role="menuitem" aria-haspopup="true" aria-expanded="false">
<span class="dot" aria-hidden="true"></span>
<span class="label">Projects</span>
</button>
<div class="mega grid-project" role="menu">
<div class="mega-feature">
<img src="https://images.unsplash.com/photo-1600210492486-724fe5c67fb0?w=600&q=80" alt="" loading="lazy" />
<div class="mega-feature-caption">
<span class="eyebrow">Currently Featured</span>
<span class="title">Fjordhaus<br />Residence</span>
</div>
</div>
<div class="mega-col">
<div class="mega-col-label">By Typology</div>
<ul class="mega-links">
<li><a href="#" role="menuitem">Private Residences<span class="note">Custom homes & villas</span></a></li>
<li><a href="#" role="menuitem">Cultural Spaces<span class="note">Museums, galleries & pavilions</span></a></li>
<li><a href="#" role="menuitem">Hospitality <span class="pill">New</span><span class="note">Hotels & retreats</span></a></li>
<li><a href="#" role="menuitem">Workplaces<span class="note">Studios & offices</span></a></li>
<li><a href="#" role="menuitem">Urban Landscape<span class="note">Parks & public space</span></a></li>
</ul>
</div>
<div class="mega-col">
<div class="mega-col-label">By Context</div>
<ul class="mega-links">
<li><a href="#" role="menuitem">Coastal & Marine</a></li>
<li><a href="#" role="menuitem">Forest & Mountain</a></li>
<li><a href="#" role="menuitem">Urban Infill</a></li>
<li><a href="#" role="menuitem">Rural & Agricultural</a></li>
<li><a href="#" role="menuitem">Heritage Adaptive</a></li>
</ul>
</div>
<div class="mega-footer">
<span class="note">58 completed projects across 14 countries</span>
<a href="#">View All Projects</a>
</div>
</div>
</li>
<!-- SERVICES -->
<li class="nav-item" role="none">
<button type="button" class="nav-trigger" role="menuitem" aria-haspopup="true" aria-expanded="false">
<span class="dot" aria-hidden="true"></span>
<span class="label">Services</span>
</button>
<div class="mega grid-studio" role="menu">
<div class="mega-col first">
<div class="mega-col-label">Architecture</div>
<ul class="mega-links">
<li><a href="#" role="menuitem">Concept & Master Plan</a></li>
<li><a href="#" role="menuitem">Detailed Design</a></li>
<li><a href="#" role="menuitem">Planning Submissions</a></li>
<li><a href="#" role="menuitem">Construction Oversight</a></li>
<li><a href="#" role="menuitem">Post-Occupancy Review</a></li>
</ul>
</div>
<div class="mega-col">
<div class="mega-col-label">Interior Design</div>
<ul class="mega-links">
<li><a href="#" role="menuitem">Spatial Concept <span class="pill">Featured</span></a></li>
<li><a href="#" role="menuitem">Material & Palette</a></li>
<li><a href="#" role="menuitem">Bespoke Furniture</a></li>
<li><a href="#" role="menuitem">Art Curation</a></li>
<li><a href="#" role="menuitem">Landscaping</a></li>
</ul>
</div>
<div class="mega-col">
<div class="mega-col-label">Sustainability</div>
<ul class="mega-links">
<li><a href="#" role="menuitem">Passive Design</a></li>
<li><a href="#" role="menuitem">Biophilic Integration</a></li>
<li><a href="#" role="menuitem">Carbon Assessment</a></li>
<li><a href="#" role="menuitem">Materials Research</a></li>
<li><a href="#" role="menuitem">Living Certifications</a></li>
</ul>
</div>
<div class="mega-footer">
<span class="note">Every project is assigned a dedicated principal architect</span>
<a href="#">Start a Project</a>
</div>
</div>
</li>
<!-- JOURNAL -->
<li class="nav-item" role="none">
<button type="button" class="nav-trigger" role="menuitem" aria-haspopup="true" aria-expanded="false">
<span class="dot" aria-hidden="true"></span>
<span class="label">Journal</span>
</button>
<div class="mega grid-journal" role="menu">
<div class="mega-editorial">
<div class="editorial-label">Recent Writing</div>
<a href="#" class="editorial-card" role="menuitem">
<img src="https://images.unsplash.com/photo-1502005229762-cf1b2da7c5d6?w=200&q=70" alt="" loading="lazy" />
<span class="ec-text">
<span class="ec-title">On the Grammar of Threshold Spaces</span>
<span class="ec-meta">Essay · 8 min read</span>
</span>
</a>
<a href="#" class="editorial-card" role="menuitem">
<img src="https://images.unsplash.com/photo-1586023492125-27b2c045efd7?w=200&q=70" alt="" loading="lazy" />
<span class="ec-text">
<span class="ec-title">Rammed Earth & the Return of Slow Building</span>
<span class="ec-meta">Material Study · 6 min read</span>
</span>
</a>
<a href="#" class="editorial-card" role="menuitem">
<img src="https://images.unsplash.com/photo-1518780664697-55e3ad937233?w=200&q=70" alt="" loading="lazy" />
<span class="ec-text">
<span class="ec-title">What Scandinavian Light Teaches Us About Restraint</span>
<span class="ec-meta">Reflection · 5 min read</span>
</span>
</a>
</div>
<div class="mega-col">
<div class="mega-col-label">Themes</div>
<ul class="mega-links">
<li><a href="#" role="menuitem">Biophilia</a></li>
<li><a href="#" role="menuitem">Material Honesty</a></li>
<li><a href="#" role="menuitem">Light & Shadow</a></li>
<li><a href="#" role="menuitem">Vernacular Forms</a></li>
<li><a href="#" role="menuitem">Slow Architecture</a></li>
</ul>
</div>
<div class="mega-col">
<div class="mega-col-label">Series</div>
<ul class="mega-links">
<li><a href="#" role="menuitem">Site Visits</a></li>
<li><a href="#" role="menuitem">Conversations</a></li>
<li><a href="#" role="menuitem">Material Notes <span class="pill">New</span></a></li>
<li><a href="#" role="menuitem">Process Diaries</a></li>
<li><a href="#" role="menuitem">Book Reviews</a></li>
</ul>
</div>
<div class="mega-footer">
<span class="note">Published every other Thursday</span>
<a href="#">Read the Journal</a>
</div>
</div>
</li>
<!-- STUDIO -->
<li class="nav-item" role="none">
<button type="button" class="nav-trigger" role="menuitem" aria-haspopup="true" aria-expanded="false">
<span class="dot" aria-hidden="true"></span>
<span class="label">Studio</span>
</button>
<div class="simple-drop" role="menu">
<a href="#" role="menuitem">About the Practice</a>
<a href="#" role="menuitem">The Team</a>
<a href="#" role="menuitem">Philosophy & Ethics</a>
<a href="#" role="menuitem">Awards & Press</a>
<a href="#" role="menuitem">Open Positions</a>
</div>
</li>
<!-- CONTACT -->
<li class="nav-item" role="none">
<button type="button" class="nav-trigger" role="menuitem" aria-haspopup="true" aria-expanded="false">
<span class="dot" aria-hidden="true"></span>
<span class="label">Contact</span>
</button>
<div class="simple-drop" role="menu">
<a href="#" role="menuitem">New Enquiries</a>
<a href="#" role="menuitem">Press & Media</a>
<a href="#" role="menuitem">Visit the Studio</a>
<a href="#" role="menuitem">Collaborations</a>
</div>
</li>
</ul>
</nav> /* ─── 03 Biophilic Studio — warm linen architecture mega menu ───────
Imports Fraunces + DM Sans. The paper-grain texture overlay from the
original mock has been scoped to .mm-bio::before so it stays inside
the demo wrapper. Botanical SVG corner motifs are inlined as
background-image data URIs on .mega-col::after. */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,200;0,9..144,300;0,9..144,400;1,9..144,200;1,9..144,300&family=DM+Sans:ital,opsz,wght@0,9..40,200;0,9..40,300;0,9..40,400;1,9..40,300&display=swap');
.mm-bio {
--mm-bio-clay: #e8ddd0;
--mm-bio-linen: #f4f0e8;
--mm-bio-bark: #3d2e20;
--mm-bio-moss: #4a5e3a;
--mm-bio-moss-light: #7a9164;
--mm-bio-terra: #c2704a;
--mm-bio-stone: #9e9085;
--mm-bio-warm-white: #faf8f4;
--mm-bio-border: rgba(61, 46, 32, 0.12);
--mm-bio-border-mid: rgba(61, 46, 32, 0.2);
--mm-bio-text: #3d2e20;
--mm-bio-text-mid: rgba(61, 46, 32, 0.6);
--mm-bio-text-dim: rgba(61, 46, 32, 0.4);
position: relative;
background: var(--mm-bio-warm-white);
font-family: 'DM Sans', system-ui, sans-serif;
width: 100%;
min-height: 560px;
overflow: hidden;
box-sizing: border-box;
}
.mm-bio *,
.mm-bio *::before,
.mm-bio *::after { box-sizing: border-box; }
/* Paper grain — scoped to wrapper, not body */
.mm-bio::before {
content: '';
position: absolute;
inset: 0;
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
pointer-events: none;
z-index: 1;
}
.mm-bio .nav-bar {
list-style: none;
margin: 0;
padding: 0;
display: flex;
align-items: center;
justify-content: center;
gap: 0;
background: var(--mm-bio-warm-white);
border-bottom: 1px solid var(--mm-bio-border);
position: relative;
z-index: 3;
}
/* botanical SVG decoration on left of bar */
.mm-bio .nav-bar::before {
content: '';
position: absolute;
left: 24px;
top: 50%;
transform: translateY(-50%);
width: 80px;
height: 24px;
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 80 24'%3E%3Cpath d='M2,12 Q10,2 20,12 Q10,22 2,12' stroke='%234a5e3a' stroke-width='0.8' fill='none' opacity='0.4'/%3E%3Cpath d='M18,12 Q26,2 36,12 Q26,22 18,12' stroke='%234a5e3a' stroke-width='0.8' fill='none' opacity='0.3'/%3E%3Cpath d='M34,12 Q42,2 52,12 Q42,22 34,12' stroke='%234a5e3a' stroke-width='0.8' fill='none' opacity='0.2'/%3E%3Cline x1='2' y1='12' x2='78' y2='12' stroke='%234a5e3a' stroke-width='0.5' opacity='0.2'/%3E%3C/svg%3E");
background-repeat: no-repeat;
background-size: contain;
}
.mm-bio .nav-item { position: relative; list-style: none; }
.mm-bio .nav-trigger {
display: inline-flex;
align-items: center;
gap: 6px;
padding: 20px 26px;
font-family: 'DM Sans', system-ui, sans-serif;
font-size: 12px;
font-weight: 300;
letter-spacing: 0.08em;
color: var(--mm-bio-text-mid);
text-transform: lowercase;
background: transparent;
border: 0;
cursor: pointer;
user-select: none;
transition: color 0.3s ease;
position: relative;
}
.mm-bio .nav-trigger .dot {
width: 4px;
height: 4px;
border-radius: 50%;
background: var(--mm-bio-terra);
opacity: 0;
transition: opacity 0.3s;
flex-shrink: 0;
}
.mm-bio .nav-item:hover .nav-trigger,
.mm-bio .nav-item.mm-open .nav-trigger { color: var(--mm-bio-bark); }
.mm-bio .nav-item:hover .nav-trigger .dot,
.mm-bio .nav-item.mm-open .nav-trigger .dot { opacity: 1; }
.mm-bio .nav-trigger::after {
content: '';
position: absolute;
bottom: -1px;
left: 26px;
right: 26px;
height: 1px;
background: var(--mm-bio-terra);
transform: scaleX(0);
transform-origin: left center;
transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.mm-bio .nav-item:hover .nav-trigger::after,
.mm-bio .nav-item.mm-open .nav-trigger::after { transform: scaleX(1); }
/* ── Mega Panel ── */
.mm-bio .mega {
position: absolute;
top: calc(100% + 1px);
left: 50%;
transform: translateX(-50%) translateY(-8px);
background: var(--mm-bio-linen);
border: 1px solid var(--mm-bio-border-mid);
box-shadow: 0 8px 40px rgba(61, 46, 32, 0.1), 0 2px 8px rgba(61, 46, 32, 0.06);
opacity: 0;
pointer-events: none;
transition: opacity 0.4s ease, transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
display: grid;
overflow: hidden;
z-index: 5;
}
.mm-bio .mega.grid-project { grid-template-columns: 260px 1fr 1fr; width: min(780px, calc(100vw - 32px)); }
.mm-bio .mega.grid-studio { grid-template-columns: 1fr 1fr 1fr; width: min(720px, calc(100vw - 32px)); }
.mm-bio .mega.grid-journal { grid-template-columns: 2fr 1fr 1fr; width: min(760px, calc(100vw - 32px)); }
.mm-bio .nav-item:hover .mega,
.mm-bio .nav-item.mm-open .mega {
opacity: 1;
pointer-events: all;
transform: translateX(-50%) translateY(0);
}
/* ── Feature image panel ── */
.mm-bio .mega-feature {
position: relative;
overflow: hidden;
min-height: 320px;
}
.mm-bio .mega-feature img {
width: 100%;
height: 100%;
object-fit: cover;
transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), filter 0.6s;
filter: saturate(0.85);
}
.mm-bio .nav-item:hover .mega-feature img,
.mm-bio .nav-item.mm-open .mega-feature img {
transform: scale(1.04);
filter: saturate(1);
}
.mm-bio .mega-feature-caption {
position: absolute;
bottom: 0;
left: 0;
right: 0;
padding: 28px 22px 22px;
background: linear-gradient(to top, rgba(61, 46, 32, 0.75) 0%, transparent 100%);
}
.mm-bio .mega-feature-caption .eyebrow {
display: block;
font-family: 'DM Sans', system-ui, sans-serif;
font-size: 9px;
font-weight: 300;
letter-spacing: 0.18em;
text-transform: uppercase;
color: rgba(244, 240, 232, 0.7);
margin-bottom: 6px;
}
.mm-bio .mega-feature-caption .title {
display: block;
font-family: 'Fraunces', Georgia, serif;
font-size: 22px;
font-weight: 200;
font-style: italic;
color: var(--mm-bio-linen);
line-height: 1.2;
}
/* ── Link columns ── */
.mm-bio .mega-col {
padding: 28px 24px;
border-left: 1px solid var(--mm-bio-border);
position: relative;
}
.mm-bio .mega-col.first { border-left: 0; }
.mm-bio .mega-col::after {
content: '';
position: absolute;
top: 16px;
right: 16px;
width: 28px;
height: 28px;
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cpath d='M16,28 Q4,20 4,10 Q10,4 16,8 Q22,4 28,10 Q28,20 16,28z' stroke='%234a5e3a' stroke-width='0.6' fill='none' opacity='0.15'/%3E%3Cline x1='16' y1='8' x2='16' y2='28' stroke='%234a5e3a' stroke-width='0.5' opacity='0.12'/%3E%3C/svg%3E");
background-repeat: no-repeat;
background-size: contain;
opacity: 0.6;
}
.mm-bio .mega-col-label {
font-family: 'DM Sans', system-ui, sans-serif;
font-size: 9px;
font-weight: 300;
letter-spacing: 0.2em;
text-transform: uppercase;
color: var(--mm-bio-stone);
margin-bottom: 16px;
padding-bottom: 12px;
border-bottom: 1px solid var(--mm-bio-border);
}
.mm-bio .mega-links {
list-style: none;
margin: 0;
padding: 0;
display: flex;
flex-direction: column;
}
.mm-bio .mega-links li { list-style: none; }
.mm-bio .mega-links li a {
display: block;
padding: 9px 0;
font-family: 'Fraunces', Georgia, serif;
font-size: 17px;
font-weight: 200;
color: var(--mm-bio-text);
text-decoration: none;
letter-spacing: 0.01em;
border-bottom: 1px solid rgba(61, 46, 32, 0.06);
transition: color 0.3s, padding-left 0.3s;
position: relative;
line-height: 1.3;
}
.mm-bio .mega-links li a:hover {
color: var(--mm-bio-terra);
padding-left: 12px;
}
.mm-bio .mega-links li a .note {
display: block;
font-family: 'DM Sans', system-ui, sans-serif;
font-size: 10px;
font-weight: 200;
color: var(--mm-bio-text-dim);
margin-top: 1px;
font-style: normal;
letter-spacing: 0;
transition: color 0.3s;
}
.mm-bio .mega-links li a:hover .note { color: rgba(194, 112, 74, 0.6); }
.mm-bio .mega-links li a .pill {
display: inline-block;
font-family: 'DM Sans', system-ui, sans-serif;
font-size: 8px;
font-weight: 300;
letter-spacing: 0.1em;
text-transform: uppercase;
color: var(--mm-bio-moss-light);
background: rgba(74, 94, 58, 0.1);
padding: 2px 7px;
border-radius: 20px;
margin-left: 8px;
vertical-align: middle;
}
/* ── Editorial column (Journal) ── */
.mm-bio .mega-editorial {
padding: 28px 24px;
border-left: 1px solid var(--mm-bio-border);
display: flex;
flex-direction: column;
gap: 18px;
}
.mm-bio .editorial-label {
font-family: 'DM Sans', system-ui, sans-serif;
font-size: 9px;
font-weight: 300;
letter-spacing: 0.2em;
text-transform: uppercase;
color: var(--mm-bio-stone);
margin-bottom: 4px;
padding-bottom: 12px;
border-bottom: 1px solid var(--mm-bio-border);
}
.mm-bio .editorial-card {
display: flex;
gap: 12px;
align-items: flex-start;
cursor: pointer;
text-decoration: none;
}
.mm-bio .editorial-card img {
width: 56px;
height: 56px;
object-fit: cover;
flex-shrink: 0;
filter: saturate(0.8);
transition: filter 0.3s, transform 0.3s;
}
.mm-bio .editorial-card:hover img {
filter: saturate(1);
transform: scale(1.03);
}
.mm-bio .editorial-card .ec-text { display: flex; flex-direction: column; }
.mm-bio .editorial-card .ec-text .ec-title {
font-family: 'Fraunces', Georgia, serif;
font-size: 13px;
font-weight: 300;
color: var(--mm-bio-bark);
line-height: 1.4;
transition: color 0.3s;
}
.mm-bio .editorial-card:hover .ec-title { color: var(--mm-bio-terra); }
.mm-bio .editorial-card .ec-text .ec-meta {
font-family: 'DM Sans', system-ui, sans-serif;
font-size: 10px;
font-weight: 200;
color: var(--mm-bio-text-dim);
margin-top: 3px;
letter-spacing: 0.04em;
}
/* ── Footer ── */
.mm-bio .mega-footer {
grid-column: 1 / -1;
display: flex;
align-items: center;
justify-content: space-between;
padding: 14px 24px;
background: rgba(61, 46, 32, 0.04);
border-top: 1px solid var(--mm-bio-border);
flex-wrap: wrap;
gap: 12px;
}
.mm-bio .mega-footer .note {
font-family: 'DM Sans', system-ui, sans-serif;
font-size: 10px;
font-weight: 200;
font-style: italic;
color: var(--mm-bio-text-dim);
letter-spacing: 0.02em;
}
.mm-bio .mega-footer a {
font-family: 'DM Sans', system-ui, sans-serif;
font-size: 10px;
font-weight: 300;
letter-spacing: 0.12em;
text-transform: uppercase;
color: var(--mm-bio-terra);
text-decoration: none;
display: inline-flex;
align-items: center;
gap: 8px;
transition: gap 0.3s, color 0.3s;
}
.mm-bio .mega-footer a::after { content: '\2192'; font-size: 12px; }
.mm-bio .mega-footer a:hover { gap: 14px; color: var(--mm-bio-bark); }
/* ── Simple drop ── */
.mm-bio .simple-drop {
position: absolute;
top: calc(100% + 1px);
left: 50%;
transform: translateX(-50%) translateY(-6px);
width: 220px;
background: var(--mm-bio-linen);
border: 1px solid var(--mm-bio-border-mid);
box-shadow: 0 8px 30px rgba(61, 46, 32, 0.1);
opacity: 0;
pointer-events: none;
transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
padding: 12px 0;
z-index: 5;
}
.mm-bio .nav-item:hover .simple-drop,
.mm-bio .nav-item.mm-open .simple-drop {
opacity: 1;
pointer-events: all;
transform: translateX(-50%) translateY(0);
}
.mm-bio .simple-drop a {
display: block;
padding: 10px 22px;
font-family: 'Fraunces', Georgia, serif;
font-size: 15px;
font-weight: 200;
color: var(--mm-bio-text);
text-decoration: none;
transition: color 0.25s, background 0.25s, padding-left 0.3s;
border-bottom: 1px solid rgba(61, 46, 32, 0.05);
}
.mm-bio .simple-drop a:hover {
color: var(--mm-bio-terra);
background: rgba(194, 112, 74, 0.05);
padding-left: 32px;
}
/* ── Stagger ── */
.mm-bio .nav-item:hover .mega-links li,
.mm-bio .nav-item.mm-open .mega-links li {
animation: mm-bio-rise 0.45s ease both;
}
.mm-bio .nav-item:hover .mega-links li:nth-child(1),
.mm-bio .nav-item.mm-open .mega-links li:nth-child(1) { animation-delay: 0.06s; }
.mm-bio .nav-item:hover .mega-links li:nth-child(2),
.mm-bio .nav-item.mm-open .mega-links li:nth-child(2) { animation-delay: 0.11s; }
.mm-bio .nav-item:hover .mega-links li:nth-child(3),
.mm-bio .nav-item.mm-open .mega-links li:nth-child(3) { animation-delay: 0.16s; }
.mm-bio .nav-item:hover .mega-links li:nth-child(4),
.mm-bio .nav-item.mm-open .mega-links li:nth-child(4) { animation-delay: 0.21s; }
.mm-bio .nav-item:hover .mega-links li:nth-child(5),
.mm-bio .nav-item.mm-open .mega-links li:nth-child(5) { animation-delay: 0.26s; }
@keyframes mm-bio-rise {
from { opacity: 0; transform: translateY(6px); }
to { opacity: 1; transform: translateY(0); }
}
@media (max-width: 760px) {
.mm-bio .nav-bar::before { display: none; }
.mm-bio .nav-trigger { padding: 16px 12px; font-size: 11px; }
.mm-bio .mega.grid-project,
.mm-bio .mega.grid-studio,
.mm-bio .mega.grid-journal {
grid-template-columns: 1fr;
width: calc(100vw - 24px);
}
.mm-bio .mega-feature { min-height: 180px; }
.mm-bio .mega-col,
.mm-bio .mega-editorial { border-left: 0; border-top: 1px solid var(--mm-bio-border); }
}
@media (prefers-reduced-motion: reduce) {
.mm-bio .mega,
.mm-bio .simple-drop,
.mm-bio .mega-feature img,
.mm-bio .editorial-card img,
.mm-bio .mega-links li a,
.mm-bio .mega-footer a { transition: none; animation: none; }
.mm-bio .nav-item:hover .mega-feature img,
.mm-bio .nav-item.mm-open .mega-feature img { transform: none; }
} (() => {
document.querySelectorAll('.mm-noi .nav-item, .mm-cyb .nav-item, .mm-bio .nav-item, .mm-dep .nav-item, .mm-typ .nav-item, .mm-dea .nav-item').forEach(item => {
const trigger = item.querySelector('.nav-trigger');
if (!trigger) return;
// Mouse + keyboard: toggle open on click / Enter / Space
trigger.addEventListener('click', e => {
e.preventDefault();
const isOpen = item.classList.contains('mm-open');
// Close any sibling that's open so only one panel shows at a time
item.parentElement?.querySelectorAll('.nav-item.mm-open').forEach(other => {
if (other !== item) other.classList.remove('mm-open');
const otherBtn = other.querySelector('.nav-trigger');
if (otherBtn) otherBtn.setAttribute('aria-expanded', 'false');
});
item.classList.toggle('mm-open', !isOpen);
trigger.setAttribute('aria-expanded', String(!isOpen));
});
});
// Outside-click closes all open panels
document.addEventListener('click', e => {
document.querySelectorAll('.mm-noi .nav-item.mm-open, .mm-cyb .nav-item.mm-open, .mm-bio .nav-item.mm-open, .mm-dep .nav-item.mm-open, .mm-typ .nav-item.mm-open, .mm-dea .nav-item.mm-open').forEach(item => {
if (!item.contains(e.target)) {
item.classList.remove('mm-open');
const btn = item.querySelector('.nav-trigger');
if (btn) btn.setAttribute('aria-expanded', 'false');
}
});
});
// Escape closes the currently open panel
document.addEventListener('keydown', e => {
if (e.key !== 'Escape') return;
document.querySelectorAll('.mm-noi .nav-item.mm-open, .mm-cyb .nav-item.mm-open, .mm-bio .nav-item.mm-open, .mm-dep .nav-item.mm-open, .mm-typ .nav-item.mm-open, .mm-dea .nav-item.mm-open').forEach(item => {
item.classList.remove('mm-open');
const btn = item.querySelector('.nav-trigger');
if (btn) btn.setAttribute('aria-expanded', 'false');
});
});
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