/* ══════════════════════════════════════════
   B.K. Neon — Work Page Styles
   Premium portfolio gallery with lightbox
   ══════════════════════════════════════════ */

/* ── Page Header ──────────────────────── */
.page-header{padding:160px 0 80px;position:relative;overflow:hidden}
.page-header::before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,0.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,0.04) 1px,transparent 1px);background-size:80px 80px;opacity:0.4;pointer-events:none}
.page-header::after{content:'';position:absolute;top:0;right:-10%;width:50vw;height:80%;background:radial-gradient(ellipse,rgba(30,143,255,.08) 0%,transparent 70%);pointer-events:none}
.page-header-inner{position:relative;z-index:2}
.page-eyebrow{display:inline-flex;align-items:center;gap:12px;font-size:12px;letter-spacing:0.2em;text-transform:uppercase;color:var(--muted);margin-bottom:20px}
.page-eyebrow .pip{width:28px;height:2px;background:var(--blue);box-shadow:0 0 8px var(--blue)}
.page-title{font-family:var(--display);font-size:clamp(64px,10vw,140px);line-height:0.88;letter-spacing:0.01em;color:var(--white)}
.page-title .accent{color:transparent;-webkit-text-stroke:2px var(--blue);filter:drop-shadow(0 0 16px rgba(30,143,255,.4))}
.page-subtitle{max-width:480px;font-size:16px;color:var(--muted);line-height:1.8;margin-top:28px}

/* ── Filter Buttons ──────────────────── */
.portfolio-filters{display:flex;align-items:center;gap:8px;padding:0 0 48px;flex-wrap:wrap}
.filter-btn{
  font-family:var(--body);font-size:13px;font-weight:400;
  letter-spacing:0.06em;color:var(--muted);
  background:transparent;border:1px solid var(--border-md);
  padding:10px 24px;border-radius:40px;cursor:pointer;
  transition:all 0.35s cubic-bezier(0.25,0.46,0.45,0.94);
  position:relative;overflow:hidden;
}
.filter-btn::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(circle at center,rgba(30,143,255,.15),transparent 70%);
  opacity:0;transition:opacity 0.35s;
}
.filter-btn:hover{color:var(--white);border-color:rgba(255,255,255,0.3)}
.filter-btn:hover::before{opacity:1}
.filter-btn.active{
  color:#fff;
  background:rgba(30,143,255,0.12);
  border-color:rgba(30,143,255,0.4);
  box-shadow:0 0 20px rgba(30,143,255,.12);
}
.filter-btn.active:hover{
  background:var(--blue);border-color:var(--blue);
  box-shadow:0 4px 24px var(--blue-glow),0 0 40px rgba(30,143,255,.2);
}

/* ── Gallery Grid ────────────────────── */
.gallery-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  padding-bottom:120px;
}

/* ── Gallery Item ────────────────────── */
.gallery-item{
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:var(--surface);
  border:1px solid var(--border);
  cursor:pointer;
  position:relative;
  opacity:0;
  transform:translateY(30px);
  transition:transform 0.5s cubic-bezier(0.25,0.46,0.45,0.94),
             box-shadow 0.5s cubic-bezier(0.25,0.46,0.45,0.94),
             border-color 0.5s;
}
.gallery-item:hover{
  transform:translateY(-6px);
  box-shadow:
    0 20px 60px rgba(0,0,0,.5),
    0 0 0 1px rgba(30,143,255,0.15),
    0 0 40px rgba(30,143,255,.08);
  border-color:rgba(30,143,255,0.2);
}

/* Glow overlay on hover */
.gallery-glow{
  position:absolute;inset:0;z-index:1;
  background:radial-gradient(ellipse at 50% 100%,rgba(30,143,255,.18) 0%,rgba(255,45,155,.06) 40%,transparent 70%);
  opacity:0;
  transition:opacity 0.5s;
  pointer-events:none;
}
.gallery-item:hover .gallery-glow{opacity:1}

/* Image */
.gallery-item img{
  width:100%;display:block;
  object-fit:cover;
  aspect-ratio:4/3;
  transition:transform 0.6s cubic-bezier(0.25,0.46,0.45,0.94),filter 0.5s;
  position:relative;z-index:0;
}
.gallery-item:hover img{
  transform:scale(1.06);
  filter:brightness(1.08);
}

/* Category badge */
.gallery-badge{
  position:absolute;top:14px;left:14px;z-index:3;
  font-family:var(--body);font-size:10px;font-weight:500;
  letter-spacing:0.12em;text-transform:uppercase;
  color:var(--white);
  background:rgba(10,10,15,0.7);
  backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,0.12);
  padding:6px 14px;border-radius:20px;
  opacity:0;transform:translateY(-8px);
  transition:opacity 0.35s,transform 0.35s;
  pointer-events:none;
}
.gallery-item:hover .gallery-badge{
  opacity:1;transform:translateY(0);
}

/* Zoom icon overlay */
.gallery-zoom-icon{
  position:absolute;bottom:14px;right:14px;z-index:3;
  width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(10,10,15,0.6);
  backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,0.12);
  border-radius:50%;
  opacity:0;transform:scale(0.7);
  transition:opacity 0.35s,transform 0.35s;
  pointer-events:none;
}
.gallery-zoom-icon svg{
  width:18px;height:18px;color:var(--white);
}
.gallery-item:hover .gallery-zoom-icon{
  opacity:1;transform:scale(1);
}

/* ══════════════════════════════════════════
   Fullscreen Lightbox
   ══════════════════════════════════════════ */
.lightbox{
  position:fixed;inset:0;z-index:10000;
  display:none;align-items:center;justify-content:center;
}
.lightbox.active{display:flex}

.lightbox-backdrop{
  position:absolute;inset:0;
  background:rgba(5,5,10,0.92);
  backdrop-filter:blur(24px);
}

.lightbox-content{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:center;
  width:100%;height:100%;
  padding:60px 80px;
  max-width:1400px;
}

.lightbox-image-wrap{
  position:relative;
  max-width:100%;max-height:100%;
  display:flex;align-items:center;justify-content:center;
  flex:1;
}

.lightbox-img{
  max-width:100%;max-height:80vh;
  object-fit:contain;
  border-radius:12px;
  box-shadow:
    0 30px 80px rgba(0,0,0,.6),
    0 0 80px rgba(30,143,255,.08),
    0 0 0 1px rgba(255,255,255,0.06);
  transition:opacity 0.4s;
}

.lightbox-loader{
  position:absolute;
  width:36px;height:36px;
  border:3px solid rgba(255,255,255,0.1);
  border-top-color:var(--blue);
  border-radius:50%;
  animation:lbSpin 0.8s linear infinite;
  display:none;
}
@keyframes lbSpin{to{transform:rotate(360deg)}}

.lightbox-close{
  position:absolute;top:28px;right:32px;z-index:5;
  width:48px;height:48px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,0.06);
  border:1px solid rgba(255,255,255,0.12);
  border-radius:50%;
  cursor:pointer;
  transition:all 0.3s;
}
.lightbox-close svg{width:20px;height:20px;color:var(--white)}
.lightbox-close:hover{
  background:rgba(255,45,155,0.15);
  border-color:rgba(255,45,155,0.4);
  box-shadow:0 0 20px rgba(255,45,155,.2);
}

.lightbox-nav{
  position:relative;z-index:5;
  width:52px;height:52px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:50%;
  cursor:pointer;
  margin:0 20px;
  transition:all 0.3s;
}
.lightbox-nav svg{width:22px;height:22px;color:var(--white)}
.lightbox-nav:hover{
  background:rgba(30,143,255,0.12);
  border-color:rgba(30,143,255,0.4);
  box-shadow:0 0 24px rgba(30,143,255,.2);
  transform:scale(1.08);
}

.lightbox-info{
  position:absolute;bottom:28px;left:50%;
  transform:translateX(-50%);z-index:5;
  display:flex;align-items:center;gap:20px;
  font-family:var(--body);font-size:12px;
  letter-spacing:0.1em;text-transform:uppercase;
  color:var(--muted);
}
.lightbox-category{
  color:var(--blue);font-weight:500;
  text-shadow:0 0 12px rgba(30,143,255,.4);
}
.lightbox-counter{
  color:var(--gray2);
}

/* ── Portfolio CTA ───────────────────── */
.portfolio-cta{padding:80px 0;text-align:center;border-top:1px solid var(--border)}
.portfolio-cta-text{font-family:var(--serif);font-size:clamp(24px,3vw,38px);color:var(--white);margin-bottom:28px;font-weight:400}
.portfolio-cta-text em{color:var(--pink);font-style:italic;text-shadow:0 0 20px var(--pink-glow)}
.btn-neon{
  font-family:var(--body);font-size:14px;font-weight:500;
  letter-spacing:0.1em;text-transform:uppercase;
  background:var(--blue);color:#fff;border:none;
  padding:18px 40px;border-radius:40px;cursor:pointer;
  box-shadow:0 4px 20px var(--blue-glow);
  transition:background 0.3s,box-shadow 0.3s,transform 0.2s;
}
.btn-neon:hover{
  background:#0A7FEF;
  box-shadow:0 6px 32px rgba(30,143,255,.4);
  transform:translateY(-2px);
}

/* ── Responsive ──────────────────────── */
@media(max-width:900px){
  .gallery-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .lightbox-content{padding:40px 16px}
  .lightbox-nav{width:40px;height:40px;margin:0 8px}
  .lightbox-close{top:16px;right:16px;width:40px;height:40px}
}
@media(max-width:540px){
  .gallery-grid{grid-template-columns:1fr;gap:12px}
  .portfolio-filters{gap:6px}
  .filter-btn{padding:8px 18px;font-size:12px}
  .page-header{padding:120px 0 50px}
  .lightbox-nav{display:none}
}