/* ============================================================
   v2 · Direction B — GRID SYSTEM
   12-col underlay, Bauhaus-leaning, warm accent
   ============================================================ */
.gs-wrap {
  background: #ffffff;
  color: #111111;
  min-height: 100vh;
  font-family: 'IBM Plex Sans', 'Inter', sans-serif;
  --gs-line: #e5e5e5;
  --gs-mute: #737373;
  --gs-fg: #111111;
  --gs-bg: #ffffff;
  --gs-accent: #e35d2b;
  position: relative;
}

/* Faint 12-col grid underlay — visible only on hover via tweak */
.gs-grid-underlay {
  position: fixed; inset: 72px 0 0 0; pointer-events: none; z-index: 1;
  max-width: 1280px; margin: 0 auto;
  padding: 0 2rem;
  display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px;
  opacity: 0;
  transition: opacity 0.3s;
}
.gs-grid-underlay.show { opacity: 0.06; }
.gs-grid-underlay > span { background: var(--gs-fg); height: 100vh; }

/* Top nav */
.gs-nav {
  position: sticky; top: 0; z-index: 40;
  display: grid; grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 2rem; height: 72px;
  background: var(--gs-bg);
  border-bottom: 1px solid var(--gs-line);
}
.gs-brand { display: flex; align-items: center; gap: 0.75rem; }
.gs-brand-mark {
  width: 32px; height: 32px;
  background: var(--gs-fg);
  color: var(--gs-bg);
  display: grid; place-items: center;
  font-family: 'IBM Plex Mono', monospace; font-weight: 600; font-size: 0.85rem;
}
.gs-brand-name { font-weight: 600; font-size: 0.95rem; letter-spacing: -0.005em; }
.gs-brand-sub { font-family: 'IBM Plex Mono', monospace; font-size: 0.65rem; letter-spacing: 0.12em; color: var(--gs-mute); text-transform: uppercase; }
.gs-nav-links { display: flex; gap: 0; justify-content: center; }
.gs-nav-btn {
  background: transparent; border: none;
  padding: 0 1.1rem; height: 72px;
  font-family: 'IBM Plex Mono', monospace; font-size: 0.7rem;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--gs-mute);
  position: relative;
  transition: color 0.2s;
}
.gs-nav-btn:hover { color: var(--gs-fg); }
.gs-nav-btn.active { color: var(--gs-fg); }
.gs-nav-btn.active::before {
  content: ''; position: absolute; left: 50%; bottom: 14px;
  transform: translateX(-50%);
  width: 16px; height: 2px; background: var(--gs-accent);
  animation: gsLine 0.3s ease-out;
}
@keyframes gsLine { from { width: 0; } to { width: 16px; } }
.gs-nav-right { display: flex; justify-content: flex-end; align-items: center; gap: 0.75rem; }
.gs-nav-status {
  display: inline-flex; align-items: center; gap: 0.45rem;
  font-family: 'IBM Plex Mono', monospace; font-size: 0.7rem;
  color: var(--gs-mute);
}
.gs-nav-status::before {
  content: ''; width: 7px; height: 7px; border-radius: 50%; background: #16a34a;
  box-shadow: 0 0 0 0 rgba(22,163,74, 0.6);
  animation: gsPulse 2s infinite;
}
@keyframes gsPulse {
  0%   { box-shadow: 0 0 0 0 rgba(22,163,74, 0.6); }
  70%  { box-shadow: 0 0 0 8px rgba(22,163,74, 0); }
  100% { box-shadow: 0 0 0 0 rgba(22,163,74, 0); }
}
.gs-nav-cta {
  font-family: 'IBM Plex Mono', monospace; font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.55rem 0.9rem;
  background: var(--gs-fg); color: var(--gs-bg);
  border: none;
  transition: background 0.2s;
}
.gs-nav-cta:hover { background: var(--gs-accent); }

/* Page */
.gs-page { max-width: 1280px; margin: 0 auto; padding: 0 2rem; position: relative; z-index: 2; }

/* Hero — 12-col explicit grid */
.gs-hero {
  display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px;
  padding: 2rem 0; border-bottom: 1px solid var(--gs-line);
}
.gs-hero-num { grid-column: 1 / 2; font-family: 'IBM Plex Mono', monospace; font-size: 0.7rem; letter-spacing: 0.15em; color: var(--gs-mute); }
.gs-hero-text { grid-column: 2 / 9; }
.gs-hero-side { grid-column: 9 / 13; display: flex; flex-direction: column; gap: 1.25rem; }
.gs-eyebrow {
  font-family: 'IBM Plex Mono', monospace; font-size: 0.7rem;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--gs-mute);
  margin-bottom: 1.5rem;
  display: flex; gap: 0.85rem; align-items: center;
}
.gs-eyebrow .gs-dash {
  width: 32px; height: 2px; background: var(--gs-accent);
  display: inline-block;
  transform-origin: left;
}
.gs-h1 {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 600;
  font-size: clamp(2.5rem, 5.2vw, 4.5rem);
  line-height: 1.02;
  letter-spacing: -0.025em;
  margin: 0 0 1.5rem;
}
.gs-h1 span.acc { color: var(--gs-accent); }
.gs-lead { font-size: 1.1rem; line-height: 1.6; color: #333; margin: 0 0 1.5rem; max-width: 60ch; }
.gs-cta-row { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.gs-btn { font-family: 'IBM Plex Mono', monospace; font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; padding: 0.65rem 1rem; border: 1px solid var(--gs-fg); background: transparent; color: var(--gs-fg); transition: background 0.2s, color 0.2s; }
.gs-btn.solid { background: var(--gs-fg); color: var(--gs-bg); }
.gs-btn:hover { background: var(--gs-accent); color: var(--gs-bg); border-color: var(--gs-accent); }

.gs-stat-stack { display: grid; grid-template-rows: repeat(4, 1fr); border: 1px solid var(--gs-line); }
.gs-stat-row { display: grid; grid-template-columns: auto 1fr auto; gap: 0.75rem; align-items: center; padding: 0.85rem 1rem; border-bottom: 1px solid var(--gs-line); }
.gs-stat-row:last-child { border-bottom: none; }
.gs-stat-k { font-family: 'IBM Plex Mono', monospace; font-size: 0.65rem; letter-spacing: 0.15em; color: var(--gs-mute); text-transform: uppercase; }
.gs-stat-v { font-family: 'IBM Plex Sans', sans-serif; font-weight: 600; font-size: 1.25rem; letter-spacing: -0.01em; }
.gs-stat-arrow { color: var(--gs-accent); font-family: 'IBM Plex Mono', monospace; font-size: 0.8rem; }

/* Headshot slideshow (replaces hero stats) */
.gs-slideshow { border: 1px solid var(--gs-line); background: var(--gs-bg); display: flex; flex-direction: column; }
.gs-ss-head { display: flex; justify-content: space-between; align-items: center; padding: 0.6rem 0.85rem; border-bottom: 1px solid var(--gs-line); font-family: 'IBM Plex Mono', monospace; font-size: 0.62rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--gs-mute); }
.gs-ss-head .gs-ss-count { color: var(--gs-fg); }
.gs-ss-stage {
  position: relative;
  aspect-ratio: 4/5;
  background:
    repeating-linear-gradient(135deg, transparent 0 22px, rgba(17,17,17,0.05) 22px 23px),
    #f5f5f5;
  overflow: hidden;
}
.gs-ss-slide {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity 0.5s cubic-bezier(.2,.6,.2,1);
  pointer-events: none;
}
.gs-ss-slide.active { opacity: 1; pointer-events: auto; }
.gs-ss-placeholder {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'IBM Plex Mono', monospace; font-size: 0.65rem;
  letter-spacing: 0.15em; color: var(--gs-mute); text-transform: uppercase;
  text-align: center; line-height: 1.6;
}
.gs-ss-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  display: block;
}
.gs-ss-placeholder-text {
  position: relative;
  z-index: 1;
}
.gs-ss-image + .gs-ss-placeholder-text { display: none; }
.gs-ss-placeholder span { display: block; font-size: 1.4rem; letter-spacing: -0.02em; color: #999; text-transform: none; margin-bottom: 0.4rem; }
.gs-ss-caption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 0.75rem 0.9rem;
  background: linear-gradient(to top, rgba(255,255,255,0.96), rgba(255,255,255,0));
  font-size: 0.82rem; line-height: 1.4;
}
.gs-ss-caption-label { font-weight: 600; color: var(--gs-fg); }
.gs-ss-caption-date { font-family: 'IBM Plex Mono', monospace; font-size: 0.65rem; color: var(--gs-mute); letter-spacing: 0.12em; text-transform: uppercase; margin-top: 0.15rem; }
.gs-ss-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  display: flex; align-items: center; justify-content: center;
  width: 28px; height: 28px;
  background: var(--gs-bg); border: 1px solid var(--gs-line);
  color: var(--gs-fg);
  font-family: 'IBM Plex Mono', monospace; font-size: 0.85rem;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.gs-ss-nav:hover { background: var(--gs-fg); color: var(--gs-bg); border-color: var(--gs-fg); }
.gs-ss-nav.prev { left: 10px; }
.gs-ss-nav.next { right: 10px; }
.gs-ss-foot { display: flex; align-items: center; gap: 6px; padding: 0.6rem 0.85rem; border-top: 1px solid var(--gs-line); }
.gs-ss-dot {
  flex: 1; height: 2px; background: var(--gs-line);
  border: none; cursor: pointer; padding: 0;
  transition: background 0.25s;
}
.gs-ss-dot.active { background: var(--gs-accent); }
.gs-ss-dot:hover { background: var(--gs-fg); }
.gs-ss-dot.active:hover { background: var(--gs-accent); }

/* Leadership/Memberships — grouped */
.gs-mem-group { margin-bottom: 2.25rem; }
.gs-mem-group:last-child { margin-bottom: 0; }
.gs-mem-group-head { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; align-items: baseline; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 1px solid var(--gs-line); }
.gs-mem-group-num { grid-column: 1 / 2; font-family: 'IBM Plex Mono', monospace; font-size: 0.65rem; letter-spacing: 0.15em; color: var(--gs-mute); text-transform: uppercase; }
.gs-mem-group-title { grid-column: 2 / 8; font-weight: 600; font-size: 0.95rem; letter-spacing: -0.005em; }
.gs-mem-group-count { grid-column: 12 / 13; text-align: right; font-family: 'IBM Plex Mono', monospace; font-size: 0.65rem; color: var(--gs-mute); }

/* Sections */
.gs-section { padding: 5rem 0; border-bottom: 1px solid var(--gs-line); }
.gs-section-head { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; align-items: end; margin-bottom: 2.5rem; }
.gs-section-num { grid-column: 1 / 2; font-family: 'IBM Plex Mono', monospace; font-size: 0.7rem; letter-spacing: 0.15em; color: var(--gs-mute); }
.gs-h2 { grid-column: 2 / 9; font-family: 'IBM Plex Sans', sans-serif; font-weight: 600; font-size: 2.25rem; line-height: 1; letter-spacing: -0.02em; margin: 0; }
.gs-section-right { grid-column: 9 / 13; display: flex; justify-content: flex-end; }
.gs-section-link { font-family: 'IBM Plex Mono', monospace; font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--gs-mute); background: transparent; border: none; transition: color 0.2s; }
.gs-section-link:hover { color: var(--gs-accent); }
.gs-h3 { font-family: 'IBM Plex Mono', monospace; font-size: 0.7rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--gs-mute); margin: 0 0 1rem; padding-bottom: 0.5rem; border-bottom: 1px solid var(--gs-line); }

/* Tiles */
.gs-tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.gs-tiles.two { grid-template-columns: repeat(2, 1fr); }
.gs-tile {
  position: relative;
  background: var(--gs-bg);
  border: 1px solid var(--gs-line);
  cursor: pointer;
  display: flex; flex-direction: column;
  transition: border-color 0.25s, transform 0.25s;
}
.gs-tile:hover { border-color: var(--gs-fg); transform: translateY(-2px); }
.gs-tile.open { grid-column: span 3; }
.gs-tiles.two .gs-tile.open { grid-column: span 2; }
.gs-tile-num { position: absolute; top: 12px; right: 12px; font-family: 'IBM Plex Mono', monospace; font-size: 0.65rem; letter-spacing: 0.12em; color: var(--gs-mute); z-index: 2; }
.gs-tile-img {
  aspect-ratio: 16/10;
  background: #fafafa;
  position: relative; overflow: hidden;
  border-bottom: 1px solid var(--gs-line);
  transition: aspect-ratio 0.4s ease;
}
.gs-tile-img::before {
  content: ''; position: absolute; inset: 0;
  background:
    linear-gradient(to right, transparent calc(50% - 0.5px), rgba(17,17,17,0.08) 50%, transparent calc(50% + 0.5px)),
    linear-gradient(to bottom, transparent calc(50% - 0.5px), rgba(17,17,17,0.08) 50%, transparent calc(50% + 0.5px));
}
.gs-tile-img::after {
  content: '[ IMAGE ]'; position: absolute; bottom: 10px; left: 12px;
  font-family: 'IBM Plex Mono', monospace; font-size: 0.62rem; letter-spacing: 0.15em; color: var(--gs-mute);
}
.gs-tile.open .gs-tile-img { aspect-ratio: 21/9; }
.gs-tile-body { padding: 1.25rem 1.25rem 1.4rem; display: flex; flex-direction: column; gap: 0.35rem; flex: 1; }
.gs-tile-year { font-family: 'IBM Plex Mono', monospace; font-size: 0.62rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--gs-mute); }
.gs-tile-title { font-size: 1.1rem; font-weight: 600; line-height: 1.2; letter-spacing: -0.01em; margin: 0.15rem 0 0.2rem; }
.gs-tile-role { font-size: 0.82rem; color: var(--gs-mute); margin-bottom: 0.5rem; }
.gs-tile-tags { display: flex; gap: 0.3rem; flex-wrap: wrap; }
.gs-chip { font-family: 'IBM Plex Mono', monospace; font-size: 0.62rem; padding: 0.15rem 0.45rem; background: #f5f5f5; color: #333; letter-spacing: 0.04em; }
.gs-tile-blurb { font-size: 0.92rem; line-height: 1.55; color: #333; margin: 0.6rem 0 0.8rem; white-space: pre-line; }
.gs-tile-foot { margin-top: auto; padding-top: 1rem; display: flex; justify-content: space-between; align-items: center; border-top: 1px solid var(--gs-line); font-family: 'IBM Plex Mono', monospace; font-size: 0.65rem; letter-spacing: 0.12em; color: var(--gs-mute); text-transform: uppercase; }
.gs-tile-foot-cta { color: var(--gs-fg); display: inline-flex; align-items: center; gap: 0.3rem; transition: gap 0.2s, color 0.2s; }
.gs-tile:hover .gs-tile-foot-cta { gap: 0.55rem; color: var(--gs-accent); }

/* Flag — minimal */
.gs-flag {
  position: absolute; top: 12px; left: 12px; z-index: 5;
  background: var(--gs-accent); color: #fff;
  font-family: 'IBM Plex Mono', monospace; font-size: 0.6rem;
  letter-spacing: 0.12em; text-transform: uppercase;
  padding: 0.3rem 0.55rem;
}
.gs-flag.dot {
  background: transparent; color: var(--gs-fg);
  padding: 0; left: auto; right: 12px; top: 12px;
}
.gs-flag.dot::before { content: ''; display: inline-block; width: 8px; height: 8px; background: var(--gs-accent); margin-right: 0.4rem; transform: translateY(-1px); }
.gs-flag.dot { display: inline-flex; align-items: center; }
.gs-flag.line {
  background: transparent; color: var(--gs-fg);
  border-left: 3px solid var(--gs-accent);
  padding-left: 0.55rem;
}
.gs-flag.corner {
  top: 0; left: 0;
  background: var(--gs-accent); color: #fff;
  padding: 0.4rem 0.7rem 0.4rem 0.55rem;
}

/* Filter */
.gs-filter-bar { display: flex; gap: 0; flex-wrap: wrap; margin: 0 0 2rem; width: fit-content; }
.gs-filter { font-family: 'IBM Plex Mono', monospace; font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase; background: transparent; border: 1px solid var(--gs-line); border-right: none; padding: 0.5rem 0.9rem; color: var(--gs-mute); transition: color 0.2s, background 0.2s; }
.gs-filter:last-child { border-right: 1px solid var(--gs-line); }
.gs-filter:hover { color: var(--gs-fg); }
.gs-filter.active { background: var(--gs-fg); color: var(--gs-bg); border-color: var(--gs-fg); }

/* Background */
.gs-bg-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; }
.gs-bg-col-1 { grid-column: 1 / 8; }
.gs-bg-col-2 { grid-column: 8 / 13; }
.gs-line-row { display: grid; grid-template-columns: 7rem 1fr; gap: 1.5rem; padding: 0.85rem 0; border-bottom: 1px solid var(--gs-line); align-items: start; }
.gs-line-date { font-family: 'IBM Plex Mono', monospace; font-size: 0.7rem; color: var(--gs-mute); }
.gs-line-title { font-weight: 600; font-size: 0.98rem; }
.gs-line-sub { font-size: 0.85rem; color: #333; margin-top: 0.15rem; }
.gs-skill-row { padding: 0.65rem 0; border-bottom: 1px solid var(--gs-line); }
.gs-skill-k { font-family: 'IBM Plex Mono', monospace; font-size: 0.62rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--gs-mute); margin-bottom: 0.35rem; }

/* Memberships */
.gs-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.gs-card { border: 1px solid var(--gs-line); padding: 1.5rem; transition: border-color 0.25s; }
.gs-card:hover { border-color: var(--gs-fg); }
.gs-card-date { font-family: 'IBM Plex Mono', monospace; font-size: 0.65rem; letter-spacing: 0.12em; color: var(--gs-mute); text-transform: uppercase; margin-bottom: 0.5rem; }
.gs-card-title { font-weight: 600; font-size: 1.05rem; line-height: 1.25; margin-bottom: 0.5rem; }
.gs-card-body { font-size: 0.88rem; line-height: 1.55; color: #333; }

/* Awards */
.gs-award-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 3rem; }
.gs-award { display: grid; grid-template-columns: 2.5rem 1fr 4rem; gap: 1rem; align-items: center; padding: 1rem 0; border-bottom: 1px solid var(--gs-line); }
.gs-award-num { font-family: 'IBM Plex Mono', monospace; font-size: 0.7rem; color: var(--gs-mute); }
.gs-award-title { font-weight: 600; font-size: 0.95rem; line-height: 1.25; }
.gs-award-note { font-size: 0.8rem; color: #333; margin-top: 0.2rem; }
.gs-award-year { font-family: 'IBM Plex Mono', monospace; font-size: 0.7rem; color: var(--gs-mute); text-align: right; }

/* Resume modal */
.gs-resume-modal {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: rgba(0,0,0,0.7);
}
.gs-resume-dialog {
  position: relative;
  width: min(100%, 1060px);
  max-height: min(100%, 90vh);
  background: var(--gs-bg);
  border: 1px solid var(--gs-line);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 30px 90px rgba(0,0,0,0.35);
}
.gs-resume-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  color: var(--gs-fg);
  font-size: 1.5rem;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.gs-resume-close:hover {
  background: rgba(255,255,255,0.16);
}
.gs-resume-frame {
  width: 100%;
  height: min(100%, 88vh);
  background: #fff;
}
.gs-resume-frame iframe {
  width: 100%;
  height: 100%;
}

/* Contact modal */
.gs-contact-modal {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: rgba(0,0,0,0.6);
}
.gs-contact-dialog {
  width: min(100%, 420px);
  background: var(--gs-bg);
  border: 1px solid var(--gs-fg);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.gs-contact-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 1.5rem 1.5rem 1.25rem;
  border-bottom: 1px solid var(--gs-line);
}
.gs-contact-title {
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}
.gs-contact-sub {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gs-mute);
  margin-top: 0.2rem;
}
.gs-contact-close {
  background: transparent;
  border: none;
  font-size: 1.4rem;
  color: var(--gs-mute);
  line-height: 1;
  padding: 0;
  cursor: pointer;
  transition: color 0.2s;
}
.gs-contact-close:hover { color: var(--gs-fg); }
.gs-contact-list { padding: 0.5rem 0; }
.gs-contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--gs-line);
  text-decoration: none;
  color: var(--gs-fg);
  transition: background 0.15s;
}
.gs-contact-item:last-child { border-bottom: none; }
.gs-contact-item:hover { background: #f5f5f5; }
.gs-contact-item:hover .gs-contact-arrow { color: var(--gs-accent); transform: translate(2px, -2px); }
.gs-contact-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--gs-line);
  flex-shrink: 0;
  color: var(--gs-fg);
}
.gs-contact-info { flex: 1; display: flex; flex-direction: column; gap: 0.15rem; }
.gs-contact-item-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gs-mute);
}
.gs-contact-item-value {
  font-size: 0.9rem;
  font-weight: 500;
}
.gs-contact-arrow {
  font-size: 0.85rem;
  color: var(--gs-mute);
  transition: color 0.15s, transform 0.15s;
}

/* ============================================================
   Hamburger + mobile menu (hidden on desktop)
   ============================================================ */
.gs-nav-hamburger {
  display: none;
  background: transparent; border: none;
  font-size: 1.3rem; color: var(--gs-fg);
  width: 44px; height: 44px;
  align-items: center; justify-content: center;
  cursor: pointer; flex-shrink: 0;
}
.gs-mobile-menu {
  position: sticky; top: 72px; z-index: 39;
  background: var(--gs-bg);
  border-bottom: 2px solid var(--gs-fg);
  display: flex; flex-direction: column;
}
.gs-mobile-btn {
  background: transparent; border: none;
  border-bottom: 1px solid var(--gs-line);
  padding: 1rem 1.5rem;
  font-family: 'IBM Plex Mono', monospace; font-size: 0.72rem;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--gs-mute); text-align: left;
  transition: color 0.2s, background 0.2s;
}
.gs-mobile-btn:hover { color: var(--gs-fg); background: #f9f9f9; }
.gs-mobile-btn.active { color: var(--gs-fg); font-weight: 600; }
.gs-mobile-contact {
  background: var(--gs-fg); color: var(--gs-bg); border: none;
  padding: 1rem 1.5rem;
  font-family: 'IBM Plex Mono', monospace; font-size: 0.72rem;
  letter-spacing: 0.15em; text-transform: uppercase;
  text-align: left; cursor: pointer;
  transition: background 0.2s;
}
.gs-mobile-contact:hover { background: var(--gs-accent); }

/* ============================================================
   Tablet — ≤ 1024px
   ============================================================ */
@media (max-width: 1024px) {
  /* Nav: hide links and right section, show hamburger */
  .gs-nav { grid-template-columns: 1fr auto; }
  .gs-nav-links { display: none; }
  .gs-nav-right { display: none; }
  .gs-nav-hamburger { display: flex; }

  /* Hero: drop index column, text | slideshow side by side */
  .gs-hero { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .gs-hero-num { display: none; }
  .gs-hero-text { grid-column: 1 / 2; }
  .gs-hero-side { grid-column: 2 / 3; }

  /* Section head: 3 explicit columns instead of 12 */
  .gs-section-head { grid-template-columns: auto 1fr auto; }
  .gs-section-num { grid-column: 1 / 2; }
  .gs-h2 { grid-column: 2 / 3; }
  .gs-section-right { grid-column: 3 / 4; }

  /* Membership group head */
  .gs-mem-group-head { grid-template-columns: auto 1fr auto; gap: 1rem; }
  .gs-mem-group-num { grid-column: 1 / 2; }
  .gs-mem-group-title { grid-column: 2 / 3; }
  .gs-mem-group-count { grid-column: 3 / 4; }

  /* Background: stack columns */
  .gs-bg-grid { grid-template-columns: 1fr; }
  .gs-bg-col-1 { grid-column: 1 / 2; }
  .gs-bg-col-2 { grid-column: 1 / 2; margin-top: 2.5rem; }

  /* Tiles: 2-column */
  .gs-tiles { grid-template-columns: repeat(2, 1fr); }
  .gs-tile.open { grid-column: span 2; }
  .gs-tiles.two .gs-tile.open { grid-column: span 2; }
}

/* ============================================================
   Mobile — ≤ 640px
   ============================================================ */
@media (max-width: 640px) {
  /* Tighten page padding */
  .gs-page { padding: 0 1rem; }
  .gs-nav { padding: 0 1rem; height: 60px; }
  .gs-mobile-menu { top: 60px; }
  .gs-grid-underlay { inset: 60px 0 0 0; }

  /* Hero: single column, slideshow below text */
  .gs-hero { grid-template-columns: 1fr; gap: 2rem; padding: 1.5rem 0; }
  .gs-hero-text { grid-column: 1 / 2; }
  .gs-hero-side { grid-column: 1 / 2; }

  /* H1 smaller on phone */
  .gs-h1 { font-size: clamp(2rem, 9vw, 2.8rem); }

  /* CTA row: stack buttons */
  .gs-cta-row { flex-direction: column; }
  .gs-cta-row .gs-btn,
  .gs-cta-row a.gs-btn { text-align: center; width: 100%; box-sizing: border-box; }

  /* Section head: flex instead of grid */
  .gs-section-head { display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; align-items: baseline; }
  .gs-section-num { display: none; }
  .gs-h2 { grid-column: unset; font-size: 1.75rem; flex: 0 0 100%; }
  .gs-section-right { margin-left: auto; }

  /* Section spacing */
  .gs-section { padding: 2.5rem 0; }

  /* Tiles: single column */
  .gs-tiles { grid-template-columns: 1fr; }
  .gs-tile.open { grid-column: span 1; }
  .gs-tiles.two { grid-template-columns: 1fr; }
  .gs-tiles.two .gs-tile.open { grid-column: span 1; }
  .gs-tile.open .gs-tile-img { aspect-ratio: 16/9; }

  /* Membership cards: single column */
  .gs-cards { grid-template-columns: 1fr; }

  /* Award grid: single column, remove extra gap */
  .gs-award-grid { grid-template-columns: 1fr; gap: 0; }

  /* Line rows on Background page */
  .gs-line-row { grid-template-columns: 5rem 1fr; gap: 0.75rem; }

  /* Resume modal: full screen */
  .gs-resume-modal { padding: 0; }
  .gs-resume-dialog { width: 100%; max-height: 100vh; border-radius: 0; border: none; }
  .gs-resume-frame { height: 92vh; }

  /* Filter bar wraps naturally already */
  .gs-filter-bar { width: 100%; }
  .gs-filter { flex: 1 1 auto; text-align: center; }
  .gs-filter:last-child { border-right: 1px solid var(--gs-line); }

  /* Lightbox: full-screen on mobile */
  .gs-lb { padding: 0; }
  .gs-lb-dialog { width: 100%; height: 100vh; border: none; border-radius: 0; }
  .gs-lb-thumb { width: 52px; height: 40px; }
}

/* ============================================================
   Lightbox / Gallery modal
   ============================================================ */
.gs-lb {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.88);
  padding: 1rem;
}
.gs-lb-dialog {
  display: flex;
  flex-direction: column;
  width: min(100%, 1100px);
  height: calc(100vh - 2rem);
  background: #111;
  border: 1px solid rgba(255,255,255,0.1);
  overflow: hidden;
}
.gs-lb-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  flex-shrink: 0;
}
.gs-lb-head-left { display: flex; flex-direction: column; gap: 0.1rem; }
.gs-lb-proj { font-weight: 600; font-size: 0.88rem; color: #fff; letter-spacing: -0.01em; }
.gs-lb-summary { font-family: 'IBM Plex Mono', monospace; font-size: 0.6rem; letter-spacing: 0.15em; text-transform: uppercase; color: rgba(255,255,255,0.45); }
.gs-lb-head-right { display: flex; align-items: center; gap: 1rem; }
.gs-lb-count { font-family: 'IBM Plex Mono', monospace; font-size: 0.65rem; letter-spacing: 0.15em; color: rgba(255,255,255,0.45); }
.gs-lb-close {
  width: 2rem; height: 2rem;
  display: flex; align-items: center; justify-content: center;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.7);
  font-size: 1.2rem; cursor: pointer; line-height: 1;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.gs-lb-close:hover { background: rgba(255,255,255,0.1); color: #fff; border-color: rgba(255,255,255,0.4); }
.gs-lb-stage {
  position: relative;
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
  overflow: hidden;
}
.gs-lb-media { max-width: 100%; max-height: 100%; object-fit: contain; display: block; }
video.gs-lb-media { width: 100%; height: 100%; }
.gs-lb-yt { width: 100%; height: 100%; border: none; display: block; }
.gs-lb-caption {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 0.65rem 1rem;
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  font-size: 0.82rem; color: rgba(255,255,255,0.85); font-weight: 500;
}
.gs-lb-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 2.5rem; height: 2.5rem;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.6);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  font-family: 'IBM Plex Mono', monospace; font-size: 1.2rem;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}
.gs-lb-nav:hover { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.5); }
.gs-lb-nav.prev { left: 0.75rem; }
.gs-lb-nav.next { right: 0.75rem; }
.gs-lb-strip {
  display: flex; gap: 4px;
  padding: 0.5rem 0.75rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  overflow-x: auto;
  flex-shrink: 0;
  background: #111;
}
.gs-lb-thumb {
  flex-shrink: 0;
  width: 64px; height: 48px;
  border: 2px solid transparent;
  background: #222;
  overflow: hidden; cursor: pointer; padding: 0;
  transition: border-color 0.2s, opacity 0.2s;
  opacity: 0.55;
}
.gs-lb-thumb:hover { opacity: 0.85; border-color: rgba(255,255,255,0.3); }
.gs-lb-thumb.active { border-color: var(--gs-accent); opacity: 1; }
.gs-lb-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.gs-lb-thumb-vid {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; color: rgba(255,255,255,0.7);
  background: #1a1a1a;
}

/* Media thumbnail strip inside expanded tile */
.gs-tile-media-strip {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  margin-top: 0.75rem;
  padding-bottom: 3px;
  scrollbar-width: thin;
  scrollbar-color: var(--gs-line) transparent;
  align-items: stretch;
}
.gs-tile-media-strip::-webkit-scrollbar { height: 3px; }
.gs-tile-media-strip::-webkit-scrollbar-track { background: transparent; }
.gs-tile-media-strip::-webkit-scrollbar-thumb { background: var(--gs-line); border-radius: 2px; }
.gs-tile-media-thumb {
  flex-shrink: 0;
  width: 72px; height: 54px;
  border: 1px solid var(--gs-line);
  background: #e8e8e8;
  overflow: hidden; cursor: pointer; padding: 0;
  transition: border-color 0.15s, opacity 0.15s;
}
.gs-tile-media-thumb:hover { border-color: var(--gs-fg); opacity: 0.8; }
.gs-tile-media-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.gs-tile-media-thumb-vid {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; color: #555;
  background: #ddd;
}
.gs-tile-media-strip-cta {
  flex-shrink: 0;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6rem; letter-spacing: 0.1em; text-transform: uppercase;
  background: transparent;
  border: 1px solid var(--gs-line);
  color: var(--gs-fg);
  padding: 0 0.7rem;
  height: 54px;
  cursor: pointer; white-space: nowrap;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.gs-tile-media-strip-cta:hover { background: var(--gs-fg); color: var(--gs-bg); border-color: var(--gs-fg); }