/* ============================================================
   GALLERY PAGE HERO — mobile-first
============================================================ */
#hero {
  position: relative;
  min-height: 48vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-h) + clamp(32px, 6vh, 72px)) clamp(16px, 4vw, 32px) clamp(40px, 6vh, 72px);
  overflow: hidden;
  background:
    radial-gradient(ellipse at center, rgba(0,255,65,0.06) 0%, rgba(0,0,0,0.6) 60%, rgba(0,0,0,0.9) 100%);
}

#hero::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--cyan) 50%, transparent 100%);
  box-shadow: 0 0 12px rgba(0,255,65,0.7);
  pointer-events: none;
  opacity: 0.7;
}

#hero-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-eyebrow {
  font-family: var(--font-code, var(--font-mono));
  font-size: clamp(0.6rem, 1.2vw, 0.72rem);
  letter-spacing: 0.42em;
  color: rgba(0,255,170,0.75);
  text-transform: uppercase;
  margin-bottom: 18px;
  text-shadow: 0 0 10px rgba(0,255,170,0.4);
}

.hero-content h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 7vw, 5.5rem);
  font-weight: 900;
  letter-spacing: 0.04em;
  color: #e0ffe8;
  line-height: 1.02;
  text-shadow: 0 0 48px rgba(0,255,65,0.3);
}

.hero-content h1 span {
  background: var(--grad-text-sweep);
  background-size: 300% 100%;
  -webkit-background-clip: text;
          background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: current-flow 8s linear infinite;
  filter: drop-shadow(0 0 20px rgba(0,255,65,0.45));
}

/* Circuit corner brackets */
.circuit-bracket {
  position: absolute;
  width: 32px;
  height: 32px;
}

.circuit-bracket-tl {
  top: clamp(40px, 6vh, 60px);
  left: max(16px, 5%);
  border-top: 2px solid var(--cyan);
  border-left: 2px solid var(--cyan);
  box-shadow: -2px -2px 8px rgba(0,255,65,0.3), inset 0 0 8px rgba(0,255,65,0.05);
}

.circuit-bracket-tr {
  top: clamp(40px, 6vh, 60px);
  right: max(16px, 5%);
  border-top: 2px solid var(--cyan);
  border-right: 2px solid var(--cyan);
  box-shadow: 2px -2px 8px rgba(0,255,65,0.3);
}

.circuit-bracket-bl {
  bottom: 16px;
  left: max(16px, 5%);
  border-bottom: 2px solid var(--cyan);
  border-left: 2px solid var(--cyan);
  box-shadow: -2px 2px 8px rgba(0,255,65,0.3);
}

.circuit-bracket-br {
  bottom: 16px;
  right: max(16px, 5%);
  border-bottom: 2px solid var(--cyan);
  border-right: 2px solid var(--cyan);
  box-shadow: 2px 2px 8px rgba(0,255,65,0.3);
}

@media (min-width: 768px) {
  .circuit-bracket {
    width: 40px;
    height: 40px;
  }
}

/* ============================================================
   GALLERY SECTION — mobile-first grid
============================================================ */
#gallery-section {
  position: relative;
  z-index: 2;
  padding: 20px 0 80px;
}

/* 1 column base */
.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
}

/* 2 columns at 640px */
@media (min-width: 640px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 3 columns at 1024px */
@media (min-width: 1024px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* 4 columns at 1280px */
@media (min-width: 1280px) {
  .gallery-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.gallery-item {
  overflow: hidden;
  position: relative;
  cursor: pointer;
  aspect-ratio: 1 / 1;
  background: #050a06;
  border: 1px solid rgba(0,255,65,0.08);
  transition: border-color 0.35s var(--ease-electric),
              box-shadow 0.35s var(--ease-electric),
              transform 0.35s var(--ease-electric);
}

.gallery-item:hover {
  border-color: rgba(0,255,65,0.5);
  box-shadow: var(--glow-s);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  -o-object-fit: cover;
  display: block;
  transition: transform 0.5s var(--ease-electric), filter 0.5s var(--ease-electric);
  filter: brightness(0.82) saturate(0.9);
}

/* Hover states only on pointer devices */
@media (hover: hover) {
  .gallery-item:hover img {
    transform: scale(1.06);
    filter: brightness(1.05) saturate(1.1);
  }

  .gallery-item:hover .gallery-item-overlay {
    opacity: 1;
  }

  .gallery-item:hover::before,
  .gallery-item:hover::after {
    opacity: 1;
  }
}

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.2) 50%, transparent 100%);
  opacity: 0;
  transition: opacity 0.35s;
  display: flex;
  align-items: flex-end;
  padding: 16px;
}

.gallery-item-title {
  font-family: var(--font-code, var(--font-mono));
  font-size: clamp(0.6rem, 1.5vw, 0.72rem);
  letter-spacing: 0.22em;
  color: var(--cyan);
  text-shadow: 0 0 12px var(--cyan);
  text-transform: uppercase;
}

/* Corner accents on hover */
.gallery-item::before,
.gallery-item::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  z-index: 2;
  opacity: 0;
  transition: opacity 0.3s;
}

.gallery-item::before {
  top: 6px;
  left: 6px;
  border-top: 1px solid var(--cyan);
  border-left: 1px solid var(--cyan);
}

.gallery-item::after {
  bottom: 6px;
  right: 6px;
  border-bottom: 1px solid var(--cyan);
  border-right: 1px solid var(--cyan);
}

/* focus-visible for keyboard nav on gallery items */
.gallery-item:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* Touch devices: show overlay always for discoverability */
@media (hover: none) {
  .gallery-item-overlay {
    opacity: 0.6;
  }
}

/* ============================================================
   LIGHTBOX — full-screen on mobile, constrained on desktop
============================================================ */
#lightbox {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.97);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

#lightbox.active {
  opacity: 1;
  pointer-events: all;
}

.lightbox-inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 0 clamp(48px, 8vw, 80px);
  box-sizing: border-box;
}

@media (min-width: 640px) {
  .lightbox-inner {
    max-width: 90vw;
    max-height: 90vh;
    padding: 0 72px;
    width: auto;
  }
}

#lightbox-img {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
  -o-object-fit: contain;
  display: block;
  border: 1px solid rgba(0,255,65,0.2);
  box-shadow: 0 0 40px rgba(0,255,65,0.15);
}

@media (min-width: 640px) {
  #lightbox-img {
    max-width: 90vw;
    max-height: 80vh;
  }
}

.lightbox-caption {
  font-family: var(--font-code, var(--font-mono));
  font-size: clamp(0.65rem, 1.5vw, 0.75rem);
  letter-spacing: 0.22em;
  color: rgba(0,255,65,0.75);
  text-align: center;
  text-transform: uppercase;
  padding: 0 16px;
}

.lightbox-caption .counter {
  color: rgba(0,255,170,0.5);
  margin-left: 16px;
}

#lightbox-close {
  position: fixed;
  top: 16px;
  right: 16px;
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--cyan);
  background: linear-gradient(180deg, rgba(0,255,65,0.06) 0%, rgba(0,0,0,0.6) 100%);
  border: 1px solid rgba(0,255,65,0.35);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition: color 0.3s var(--ease-electric),
              background 0.3s var(--ease-electric),
              border-color 0.3s var(--ease-electric),
              box-shadow 0.3s var(--ease-electric);
  z-index: 10001;
  min-width: 44px;
  min-height: 44px;
}

#lightbox-close:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

#lightbox-close:hover {
  color: #031a0a;
  background: var(--cyan);
  border-color: var(--lime);
  box-shadow: var(--glow-m);
}

.lightbox-nav {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  font-size: clamp(36px, 5vw, 60px);
  color: var(--cyan);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0 clamp(8px, 2vw, 16px);
  line-height: 1;
  z-index: 10001;
  text-shadow: 0 0 20px var(--cyan);
  transition: text-shadow 0.2s;
  user-select: none;
  /* 44px touch target */
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-nav:hover {
  text-shadow: 0 0 40px var(--cyan), 0 0 60px rgba(0,255,65,0.4);
}

.lightbox-nav:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

#lightbox-prev { left: 0; }
#lightbox-next { right: 0; }

/* ============================================================
   REDUCED MOTION
============================================================ */
@media (prefers-reduced-motion: reduce) {
  .gallery-item img,
  .gallery-item-overlay,
  .gallery-item::before,
  .gallery-item::after {
    transition: none !important;
  }

  #lightbox {
    transition: none !important;
  }
}