:root {
  --color-dark: #1a2744;
  --color-dark-2: #0f1a2e;
  --color-dark-trans: rgba(26, 39, 68, 0.9);
  --color-gray: #73777f;
  --color-gray-light: #dcdee1;
  --color-white: #ffffff;
  --color-accent: #d4a017;
  --color-accent-light: #e8b830;
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Overpass', sans-serif;
  --font-alt: 'Lato', sans-serif;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--color-dark);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-wide { max-width: 1400px; margin: 0 auto; padding: 0 24px; }

/* --- Topbar --- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-dark);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.topbar-logo {
  display: flex;
  align-items: center;
}

.topbar-logo img {
  height: 36px;
  width: auto;
}

.topbar-logo-text {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-white);
  letter-spacing: 1px;
}

.topbar-nav { display: flex; gap: 32px; }

.topbar-nav a {
  font-family: var(--font-alt);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.8);
  transition: color 0.2s;
}

.topbar-nav a:hover,
.topbar-nav a.active { color: var(--color-white); }

.topbar-nav .dropdown { position: relative; }

.topbar-nav .dropdown-menu {
  position: absolute;
  top: 100%;
  left: -12px;
  background: var(--color-dark-2);
  min-width: 200px;
  padding: 8px 0;
  display: none;
}

.topbar-nav .dropdown:hover .dropdown-menu { display: block; }

.topbar-nav .dropdown::after {
  content: '';
  position: absolute;
  top: 100%;
  left: -12px;
  width: 200px;
  height: 12px;
}

.topbar-nav .dropdown-menu a {
  display: block;
  padding: 10px 20px;
  font-size: 0.75rem;
  text-transform: none;
  letter-spacing: 0.5px;
}

.topbar-socials { display: flex; gap: 16px; align-items: center; }

.topbar-socials a {
  width: 20px;
  height: 20px;
  color: rgba(255,255,255,0.7);
  transition: color 0.2s;
  display: flex;
  align-items: center;
}

.topbar-socials svg { width: 100%; height: 100%; fill: currentColor; }

.topbar-socials a:hover { color: var(--color-white); }

.mobile-menu-btn { display: none; background: none; border: none; cursor: pointer; padding: 4px; }

.mobile-menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-white);
  margin: 5px 0;
  transition: 0.2s;
}

/* --- Sections --- */
.section { padding: 100px 0; }

.section-dark { padding: 100px 0; background: var(--color-dark); color: var(--color-white); }

.section-dark .section-title { color: var(--color-white); }

.section-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 2rem;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--color-gray);
  margin-bottom: 48px;
  max-width: 600px;
}

.section-divider { width: 100%; height: 1px; background: var(--color-gray-light); border: none; margin: 0; }

/* --- Hero --- */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  background: var(--color-dark);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  object-fit: cover;
  width: 100%;
  height: 100%;
  opacity: 0.45;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(26,39,68,0.7);
}

.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 100px;
  height: 100%;
}

.hero-text-wrapper {
  max-width: 600px;
  margin: auto;
  text-align: center;
  animation: heroFadeInUp 1s ease-out forwards;
}

@keyframes heroFadeInUp {
  from {
    opacity: 0;
    transform: translateY(60px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-bottom {
  width: 100%;
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.hero-text h1 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 3.5rem;
  color: var(--color-white);
  line-height: 1.1;
  margin-bottom: 16px;
}

.hero-text p {
  font-size: 1rem;
  color: rgba(255,255,255,0.7);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.hero-subtitle {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.45);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-top: 48px;
  margin-bottom: 16px;
}

.hero-events {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.hero-event {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.2s;
}

.hero-event:hover {
  opacity: 0.7;
}

.hero-event-date {
  font-size: 0.7rem;
  font-weight: 700;
  color: rgba(255,255,255,0.6);
  letter-spacing: 1.5px;
}

.hero-event-sep {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.5);
}

.hero-event-name {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.85);
}

.hero-event-desc {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.6);
  font-style: italic;
}


.hero-highlight {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  padding: 16px 24px;
  max-width: 280px;
}

.hero-highlight a {
  color: var(--color-white);
  font-family: var(--font-alt);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

/* --- Beehive honeycomb --- */
:root {
  --hex-w: 200px;
  --hex-h: calc(var(--hex-w) * 0.866);
  --M: 12px;
  --cell-w: calc(var(--hex-w) + var(--M) * 2);
  --cell-h: calc(var(--hex-h) + var(--M) * 2);
  --center-dist: var(--cell-h);
  --offset-x: calc(var(--center-dist) * 0.866);
  --overlap: calc(var(--offset-x) - var(--cell-w));
}

.beehive {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: calc(var(--cell-h) * 0.5);
}

.beehive-col {
  display: flex;
  flex-direction: column;
}

.beehive-col + .beehive-col {
  margin-left: var(--overlap);
}

.beehive-col.middle { margin-top: 0; }
.beehive-col.lower { margin-top: calc(var(--cell-h) * -0.5); }
.beehive-col.higher { margin-top: 0; }
.beehive-col.top { margin-top: calc(var(--cell-h) * -0.5); }

.beehive-cell {
  width: var(--cell-w);
  height: var(--cell-h);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hex-wrapper {
  width: var(--hex-w);
  height: var(--hex-h);
  perspective: 1000px;
  cursor: pointer;
}

.hex-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.6s;
  transform-style: preserve-3d;
}

.hex-wrapper:hover .hex-inner { transform: rotateY(180deg); }

.hex-front,
.hex-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
}

.hex-front {
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 2.5rem;
}

.hex-back {
  background: var(--color-dark);
  color: var(--color-white);
  transform: rotateY(180deg);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  text-align: center;
  padding: 20px;
  line-height: 1.2;
}

.hex-wrapper a {
  display: block;
  width: 100%;
  height: 100%;
  color: inherit;
}

/* --- Events list --- */
.events-list { display: flex; flex-direction: column; gap: 1px; background: var(--color-gray-light); }

.event-item {
  background: var(--color-white);
  padding: 0;
  overflow: hidden;
}

.event-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px;
  cursor: pointer;
}

.event-date {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--color-gray);
  min-width: 120px;
}

.event-title { font-weight: 600; flex: 1; margin: 0 16px; }

.event-toggle {
  font-size: 1rem;
  color: var(--color-gray);
  transition: transform 0.3s;
}

.event-item.expanded .event-toggle { transform: rotate(180deg); }

.event-details {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  padding: 0 24px;
}

.event-item:hover .event-details,
.event-item.expanded .event-details {
  max-height: 300px;
  padding: 0 24px 24px;
}

.event-details-inner {
  border-top: 1px solid var(--color-gray-light);
  padding-top: 16px;
  font-size: 0.875rem;
  color: var(--color-gray);
}

/* --- Blog grid --- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-gray-light);
}

.blog-card {
  background: var(--color-white);
  padding: 32px 24px;
  transition: background 0.2s;
}

.blog-card:hover { background: #f8f8f8; }

.blog-card h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 8px;
}

.blog-card .blog-date {
  font-family: var(--font-alt);
  font-size: 0.75rem;
  color: var(--color-gray);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.blog-card p {
  font-size: 0.875rem;
  color: var(--color-gray);
}

/* --- Social feed --- */
.social-feed { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--color-gray-light); max-width: 600px; margin: 0 auto; }

.social-post {
  background: var(--color-white);
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  text-align: center;
  transition: background 0.2s;
  text-decoration: none;
  color: inherit;
}

.social-post:hover { background: #f8f8f8; }

.social-post svg { width: 24px; height: 24px; margin-bottom: 12px; color: var(--color-gray); }

.social-post p { font-size: 0.75rem; color: var(--color-gray); }

.social-post a { color: var(--color-dark); font-weight: 600; }

/* --- Contact --- */
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; }

.contact-info h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 24px;
}

.contact-detail {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  align-items: flex-start;
}

.contact-detail svg { width: 22px; height: 22px; flex-shrink: 0; margin-top: 2px; color: var(--color-accent); }

.contact-detail .label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-gray);
  margin-bottom: 4px;
}

.contact-detail p { font-size: 0.875rem; }

.contact-form { max-width: 100%; }

.form-group { margin-bottom: 20px; }

.form-group label {
  display: block;
  font-family: var(--font-alt);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 8px;
  color: var(--color-gray);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 16px 20px;
  border: 1px solid var(--color-gray-light);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  background: var(--color-white);
  outline: none;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus { border-color: var(--color-dark); }

.form-group textarea { min-height: 140px; resize: vertical; }

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 16px 42px;
  border: 2px solid var(--color-dark);
  background: var(--color-dark);
  color: var(--color-white);
  font-family: var(--font-alt);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.btn:hover { background: transparent; color: var(--color-dark); }

.btn-outline { background: transparent; color: var(--color-dark); }
.btn-outline:hover { background: var(--color-dark); color: var(--color-white); }

.btn-light { border-color: var(--color-white); color: var(--color-white); background: transparent; }
.btn-light:hover { background: var(--color-white); color: var(--color-dark); }

.btn-accent { border-color: var(--color-accent); background: var(--color-accent); color: var(--color-white); }
.btn-accent:hover { background: transparent; color: var(--color-accent); }

/* --- Team page --- */
.team-section { padding: 80px 0; }

.team-section + .team-section { border-top: 1px solid var(--color-gray-light); }

.team-section-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 40px;
}

.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.team-card {
  background: var(--color-white);
  padding: 24px;
  border-right: 1px solid var(--color-gray-light);
}
.team-card:nth-child(4n) { border-right: none; }
.team-card:nth-child(n+5) { border-top: 1px solid var(--color-gray-light); }

.team-card-portrait {
  width: 80px;
  height: 80px;
  background: var(--color-gray-light);
  margin-bottom: 12px;
}

.team-card-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9375rem;
  margin-bottom: 2px;
}

.team-card-role {
  font-size: 0.75rem;
  color: var(--color-gray);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.team-card-gen {
  font-family: var(--font-alt);
  font-size: 0.6875rem;
  color: var(--color-accent);
  margin-top: 4px;
}

.team-card-members {
  font-size: 0.75rem;
  color: var(--color-gray);
  margin-top: 8px;
}

/* --- Sponsors --- */
.sponsor-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--color-gray-light); }

.sponsor-card {
  background: var(--color-white);
  padding: 48px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  min-height: 160px;
}

.sponsor-card .sponsor-logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--color-dark);
  letter-spacing: 2px;
  text-align: center;
}

.sponsor-card img {
  max-width: 100%;
  height: auto;
  max-height: 80px;
  object-fit: contain;
  display: block;
}

.sponsor-card p {
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-gray);
}

/* --- Project page --- */
.project-hero {
  position: relative;
  height: 60vh;
  min-height: 400px;
  background: var(--color-dark);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.project-hero-bg {
  position: absolute;
  inset: 0;
  object-fit: cover;
  width: 100%;
  height: 100%;
  opacity: 0.4;
}

.project-hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(26,39,68,0.7);
}

.project-hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px;
  width: 100%;
}

.project-hero-content h1 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 3rem;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.project-specs {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
  margin: 32px 0;
}

.project-spec {
  text-align: center;
}

.project-spec-value {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 2rem;
  color: var(--color-accent);
}

.project-spec-label {
  font-family: var(--font-alt);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-gray);
  margin-top: 4px;
}

.project-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.project-content p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-gray);
  margin-bottom: 20px;
}

.project-content h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.125rem;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.project-image {
  width: 100%;
  border: 1px solid var(--color-gray-light);
}

/* --- Project media (image/video placeholders) --- */
.project-media {
  padding: 80px 0;
}

.project-media-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.project-media-item {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--color-dark-2);
  border: 1px dashed rgba(255,255,255,0.15);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: rgba(255,255,255,0.25);
  font-family: var(--font-alt);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  overflow: hidden;
}

.project-media-item svg {
  width: 48px;
  height: 48px;
  opacity: 0.3;
}

.project-media-item img,
.project-media-item video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-media-item.span-2 {
  grid-column: span 2;
}

/* --- Project timeline (vertical milestones) --- */
.project-timeline {
  padding: 0 0 80px;
}

.project-timeline h2 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-white);
  margin-bottom: 48px;
  text-align: center;
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-accent);
  opacity: 0.4;
}

.timeline-item {
  position: relative;
  padding: 0 0 48px 32px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -33px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 3px solid var(--color-dark);
  box-shadow: 0 0 0 2px var(--color-accent);
  z-index: 1;
}

.timeline-date {
  font-family: var(--font-alt);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-accent);
  margin-bottom: 6px;
}

.timeline-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-white);
  margin-bottom: 8px;
}

.timeline-desc {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-gray);
}

/* --- Footer --- */
.footer { background: var(--color-dark); color: rgba(255,255,255,0.7); padding: 60px 0 0; }

.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.footer-col h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-white);
  margin-bottom: 20px;
}

.footer-col p,
.footer-col a {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.5);
  line-height: 2;
  display: block;
}

.footer-col a:hover { color: var(--color-white); }

.footer-logo { margin-bottom: 16px; }

.footer-logo img { height: 36px; width: auto; }

.footer-socials { display: flex; gap: 16px; margin-top: 16px; }

.footer-socials a {
  width: 18px;
  height: 18px;
  color: rgba(255,255,255,0.5);
  display: flex;
  align-items: center;
}

.footer-socials svg { width: 100%; height: 100%; fill: currentColor; }

.footer-socials a:hover { color: var(--color-white); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: 48px;
  padding: 20px 24px;
}

.footer-bottom-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.35);
}

.footer-links { display: flex; gap: 24px; }

.footer-links a {
  color: rgba(255,255,255,0.35);
  font-size: 0.75rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.footer-links a:hover { color: var(--color-white); }

/* --- Page header (for pages without hero) --- */
.page-header {
  padding: 120px 0 60px;
  background: var(--color-dark);
  color: var(--color-white);
  text-align: center;
}

.page-header h1 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 2.5rem;
  text-transform: uppercase;
  letter-spacing: 2px;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .team-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .project-content { grid-template-columns: 1fr; }
  .project-media-grid { grid-template-columns: 1fr; }
  .project-media-item.span-2 { grid-column: span 1; }
}

@media (max-width: 768px) {
  .topbar-nav { display: none; }
  .mobile-menu-btn { display: block; }
  .topbar-socials { display: none; }
  .blog-grid { grid-template-columns: 1fr; }
  .social-feed { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; gap: 48px; }
  .hero-text h1 { font-size: 2rem; }
  .hero-content { flex-direction: column; align-items: center; gap: 24px; padding: 24px 24px 60px; }
  .hero-bottom { flex-direction: column; align-items: flex-start; gap: 16px; }
  .hero { min-height: 500px; }
  :root {
    --hex-w: 140px;
    --M: 8px;
  }
  .project-specs { gap: 20px; }
  .project-hero-content h1 { font-size: 2rem; }
  .section { padding: 60px 0; }
  .sponsor-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .team-grid { grid-template-columns: 1fr; }
  .sponsor-grid { grid-template-columns: 1fr; }
  .social-feed { grid-template-columns: 1fr; }
  :root {
    --hex-w: 96px;
    --M: 6px;
  }
  .project-hero-content h1 { font-size: 1.5rem; }
}

/* --- Topbar nav with nav-open class for mobile --- */
.topbar.nav-open .topbar-nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  display: flex;
  flex-direction: column;
  padding: 16px 24px;
  gap: 12px;
  background: var(--color-dark-2);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.topbar.nav-open .dropdown-menu {
  position: static;
  display: none;
  padding-left: 16px;
  padding-top: 8px;
  gap: 8px;
}

.topbar.nav-open .dropdown-open > .dropdown-menu {
  display: flex;
  flex-direction: column;
}