/* ============================================================
   MEA Gallery — CSS
   Navy Blue Glass-Effect | Modular
============================================================ */

/* ── RESET & BASE ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy-deep:    #050d1a;
  --navy-dark:    #0a1628;
  --navy-mid:     #0f1f3d;
  --navy-soft:    #162447;
  --navy-card:    rgba(15, 31, 61, 0.6);
  --accent:       #4fc3f7;
  --accent-dim:   #1e88e5;
  --accent-glow:  rgba(79, 195, 247, 0.15);
  --white:        #e8f0fe;
  --white-dim:    #7b9bbf;
  --border:       rgba(79, 195, 247, 0.12);
  --border-hover: rgba(79, 195, 247, 0.3);
  --glass:        rgba(15, 31, 61, 0.55);
  --glass-hover:  rgba(22, 36, 71, 0.75);
  --font-display: 'Bebas Neue', sans-serif;
  --font-body:    'Cormorant Garamond', serif;
  --font-mono:    'Space Mono', monospace;
  --t-fast:       0.22s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --t-normal:     0.38s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --gap:          10px;
  --r:            6px;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  scroll-padding-top: 70px;
}

body {
  background: var(--navy-deep);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
}

::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-track { background: var(--navy-deep); }
::-webkit-scrollbar-thumb { background: var(--accent-dim); border-radius: 2px; }

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

/* ── GRAIN ── */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.022;
  will-change: transform;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
  animation: grain 0.18s steps(1) infinite;
}
@keyframes grain {
  0%   { transform: translate(0,0); }
  20%  { transform: translate(-3%,2%); }
  40%  { transform: translate(2%,-3%); }
  60%  { transform: translate(3%,1%); }
  80%  { transform: translate(-1%,3%); }
  100% { transform: translate(1%,-1%); }
}

/* ── NAV ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1.5rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--t-normal), padding var(--t-fast);
}
.nav.scrolled {
  background: rgba(5, 13, 26, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 0.9rem 2.5rem;
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.15em;
  color: var(--accent);
  text-shadow: 0 0 20px var(--accent-glow);
}
.nav-back {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--white-dim);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  transition: color var(--t-fast);
  padding: 0.4rem 0;
  position: relative;
}
.nav-back::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width var(--t-fast);
}
.nav-back:hover { color: var(--white); }
.nav-back:hover::after { width: 100%; }
.nav-back svg { transition: transform var(--t-fast); }
.nav-back:hover svg { transform: translateX(-3px); }

/* ── HERO ── */
.hero {
  position: relative;
  height: 100vh;
  min-height: 580px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 40%, rgba(30, 136, 229, 0.18) 0%, transparent 65%),
    radial-gradient(ellipse 40% 60% at 80% 20%, rgba(79, 195, 247, 0.08) 0%, transparent 60%),
    linear-gradient(160deg, #020a18 0%, var(--navy-deep) 50%, #030e1f 100%);
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(5,13,26,0.2) 0%,
    rgba(5,13,26,0.0) 40%,
    rgba(5,13,26,0.75) 100%
  );
}
.hero-scanlines {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 2px,
    rgba(0,0,0,0.025) 2px, rgba(0,0,0,0.025) 4px
  );
}
.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 0 1.5rem;
  max-width: 900px;
}
.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.45em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.7s 0.1s cubic-bezier(0.25,0.46,0.45,0.94) forwards;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(4.5rem, 12vw, 11rem);
  line-height: 0.88;
  letter-spacing: 0.04em;
  color: var(--white);
  margin-bottom: 1.2rem;
  opacity: 0;
  transform: translateY(28px);
  animation: fadeUp 0.7s 0.22s cubic-bezier(0.25,0.46,0.45,0.94) forwards;
}
.hero-title .line { display: block; }
.hero-title .accent-line {
  color: transparent;
  -webkit-text-stroke: 1px var(--white);
  text-shadow: 0 0 80px rgba(79,195,247,0.2);
}
.hero-sub {
  font-family: var(--font-body);
  font-size: clamp(0.9rem, 2vw, 1.35rem);
  font-style: italic;
  font-weight: 300;
  color: var(--white-dim);
  letter-spacing: 0.3em;
  margin-bottom: 2.8rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.7s 0.34s cubic-bezier(0.25,0.46,0.45,0.94) forwards;
}
.hero-btn-wrap {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.7s 0.46s cubic-bezier(0.25,0.46,0.45,0.94) forwards;
}
.hero-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.9rem 2rem;
  border: 1px solid var(--accent-dim);
  background: transparent;
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  transition: background-color var(--t-fast), border-color var(--t-fast), box-shadow var(--t-fast);
  cursor: pointer;
  touch-action: manipulation;
}
.hero-btn:hover {
  background-color: rgba(79,195,247,0.12);
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(79,195,247,0.15);
}
.hero-btn svg { transition: transform var(--t-fast); flex-shrink: 0; }
.hero-btn:hover svg { transform: translateX(-3px); }
.hero-btn.secondary { border-color: var(--border); color: var(--white-dim); }
.hero-btn.secondary:hover {
  background-color: rgba(79,195,247,0.06);
  border-color: var(--border-hover);
  color: var(--white);
  box-shadow: none;
}
.hero-btn.secondary:hover svg { transform: translateY(3px); }

@keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }

/* ── SCROLL INDICATOR ── */
.scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0;
  animation: fadeUp 0.7s 0.7s forwards;
}
.scroll-line {
  display: block;
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, transparent, var(--accent));
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%,100% { opacity: 0.4; transform: scaleY(1); }
  50%      { opacity: 1;   transform: scaleY(0.7); }
}
.scroll-label {
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.4em;
  color: var(--white-dim);
  text-transform: uppercase;
}
.hero-rule {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: var(--border);
}

/* ── FILTER BAR ── */
.filter-wrap {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5,13,26,0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.filter-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2.5rem;
  display: flex;
  align-items: center;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.filter-inner::-webkit-scrollbar { display: none; }
.filter-label {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--white-dim);
  white-space: nowrap;
  padding: 1.1rem 1.2rem 1.1rem 0;
  border-right: 1px solid var(--border);
  margin-right: 0.5rem;
  flex-shrink: 0;
}
.filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1.1rem 1.2rem;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--white-dim);
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--t-fast), border-color var(--t-fast);
  flex-shrink: 0;
}
.filter-btn:hover { color: var(--white); }
.filter-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.filter-count {
  background: var(--glass);
  border: 1px solid var(--border);
  color: var(--white-dim);
  font-size: 0.5rem;
  padding: 0.1rem 0.45rem;
  border-radius: 20px;
  transition: background var(--t-fast), color var(--t-fast);
}
.filter-btn.active .filter-count {
  background: rgba(79,195,247,0.15);
  color: var(--accent);
  border-color: rgba(79,195,247,0.3);
}

/* ── GALLERY SECTION ── */
.gallery-section {
  max-width: 1400px;
  margin: 0 auto;
  padding: 3rem 0 6rem;
}
.gallery-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 0 2.5rem 2.5rem;
}
.gallery-section-label {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.3em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.gallery-section-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 0.92;
  letter-spacing: 0.04em;
  color: var(--white);
}
.gallery-section-title em {
  font-style: normal;
  color: var(--white-dim);
  -webkit-text-stroke: 0.5px var(--white-dim);
}
.gallery-meta {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--white-dim);
  text-transform: uppercase;
  text-align: right;
  flex-shrink: 0;
}
.gallery-meta span { color: var(--accent); }

/* ── GALLERY CONTAINER ── */
.gallery-container {
  padding: 0 2.5rem;
}

/* ── LOADING ── */
.gallery-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
  padding: 6rem 0;
  color: var(--white-dim);
}
.loading-spinner {
  width: 32px;
  height: 32px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-text {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--white-dim);
}

/* ── ERROR ── */
.gallery-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
  padding: 6rem 2rem;
  text-align: center;
}
.gallery-error-icon { width: 48px; height: 48px; color: var(--accent-dim); opacity: 0.5; }
.gallery-error-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  letter-spacing: 0.08em;
  color: var(--white);
}
.gallery-error-msg {
  font-size: 0.95rem;
  color: var(--white-dim);
  max-width: 480px;
  line-height: 1.8;
}
.gallery-error-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  border: 1px solid var(--border-hover);
  background: transparent;
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background var(--t-fast), box-shadow var(--t-fast);
}
.gallery-error-btn:hover {
  background: rgba(79,195,247,0.08);
  box-shadow: 0 0 16px rgba(79,195,247,0.1);
}

/* ── EMPTY STATE ── */
.gallery-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 6rem 0;
}
.gallery-empty-text {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--white-dim);
}

/* ── MASONRY GRID ── */
.masonry-grid {
  columns: 4 220px;
  column-gap: var(--gap);
}
.gallery-item {
  break-inside: avoid;
  margin-bottom: var(--gap);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  background: var(--navy-card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--t-fast), box-shadow var(--t-fast);
}
.gallery-item.visible {
  opacity: 1;
  transform: translateY(0);
}
.gallery-item:hover {
  border-color: var(--border-hover);
  box-shadow: 0 8px 32px rgba(79,195,247,0.1);
}
.gallery-item img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--t-normal), opacity var(--t-fast);
  transform-origin: center;
}
.gallery-item:hover img { transform: scale(1.03); }
.gallery-item-info {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 2rem 0.9rem 0.75rem;
  background: linear-gradient(to top, rgba(5,13,26,0.92) 0%, transparent 100%);
  transform: translateY(100%);
  transition: transform var(--t-fast);
}
.gallery-item:hover .gallery-item-info { transform: translateY(0); }
.gallery-item-category {
  font-family: var(--font-mono);
  font-size: 0.48rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.2rem;
}
.gallery-item-name {
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-style: italic;
  color: var(--white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.gallery-item-expand {
  position: absolute;
  top: 0.6rem; right: 0.6rem;
  width: 28px; height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--r);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  transition: opacity var(--t-fast), background var(--t-fast);
  color: var(--white-dim);
}
.gallery-item:hover .gallery-item-expand { opacity: 1; }
.gallery-item-expand:hover { background: var(--glass-hover); color: var(--accent); }
.masonry-grid.transitioning .gallery-item { opacity: 0; transform: translateY(12px); }

/* ── LIGHTBOX ── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(5,13,26,0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.lightbox.open { opacity: 1; pointer-events: all; }
.lightbox-grain {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.018;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}
.lightbox-inner {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox-close {
  position: fixed;
  top: 1.5rem; right: 1.5rem;
  width: 40px; height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--r);
  color: var(--white-dim);
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast);
  backdrop-filter: blur(8px);
}
.lightbox-close:hover { background: var(--glass-hover); color: var(--accent); }
.lightbox-img {
  max-width: 90vw;
  max-height: 88vh;
  object-fit: contain;
  border-radius: var(--r);
  box-shadow: 0 24px 80px rgba(0,0,0,0.7);
  transition: opacity 0.18s ease, transform 0.18s ease;
  display: block;
}
.lightbox-nav {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  width: 44px; height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--r);
  color: var(--white-dim);
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast), box-shadow var(--t-fast);
  backdrop-filter: blur(8px);
}
.lightbox-nav:hover { background: var(--glass-hover); color: var(--accent); box-shadow: 0 0 20px var(--accent-glow); }
.lightbox-prev { left: -3.5rem; }
.lightbox-next { right: -3.5rem; }
.lightbox-meta {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 1.5rem;
  background: var(--glass);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
  border-radius: var(--r);
  padding: 0.6rem 1.2rem;
}
.lightbox-caption {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-style: italic;
  color: var(--white-dim);
}
.lightbox-counter {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  color: var(--accent);
}

/* ── FOOTER ── */
.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
}
.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.footer-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.2em;
  color: var(--accent);
}
.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  color: var(--white-dim);
}
.footer-copy a { transition: color var(--t-fast); }
.footer-copy a:hover { color: var(--accent); }
.footer-craft {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--white-dim);
  opacity: 0.5;
}

/* ── RESPONSIVE ── */
@media (max-width: 1200px) {
  .masonry-grid { columns: 3 200px; }
  .lightbox-prev { left: -2.5rem; }
  .lightbox-next { right: -2.5rem; }
}
@media (max-width: 900px) {
  .masonry-grid { columns: 3 160px; }
  .lightbox-nav { display: none; }
  .lightbox-meta { display: none; }
  .lightbox-close { top: 0.5rem; right: 0.5rem; }
}
@media (max-width: 600px) {
  .masonry-grid { columns: 2 140px; --gap: 6px; }
  .gallery-section { padding: 2rem 0 5rem; }
  .gallery-container { padding: 0 1rem; }
  .gallery-header { padding: 0 1rem 2rem; }
  .filter-inner { padding: 0 1rem; }
  .nav { padding: 1.2rem 1.5rem; }
  .nav.scrolled { padding: 0.8rem 1.5rem; }
  .footer-inner { flex-direction: column; text-align: center; padding: 0 1.5rem; }
}
@media (max-width: 380px) {
  .masonry-grid { columns: 2 120px; }
}

/* ── REDUCED MOTION ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .grain { animation: none; }
  .hero-eyebrow, .hero-title, .hero-sub, .hero-btn-wrap, .scroll-indicator { opacity:1; transform:none; animation:none; }
  .gallery-item { opacity:1; transform:none; }
}