@import url('https://fonts.googleapis.com/css2?family=Raleway:wght@300;700;900&family=Source+Sans+3:ital,wght@0,400;0,600;1,400&display=swap');

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

:root {
  --bg-deep:    #0d0f1a;
  --bg-panel:   #13172a;
  --bg-alt:     #1a1f38;
  --cyan:       #00e5ff;
  --cyan-dim:   rgba(0,229,255,0.15);
  --red:        #ff2440;
  --white:      #f0f4ff;
  --grey:       #7a8aaa;
  --font-head:  'Raleway', sans-serif;
  --font-body:  'Source Sans 3', sans-serif;
}

html { scroll-behavior: smooth; }

body.is-solid-state {
  background: var(--bg-deep);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.7;
  overflow-x: hidden;
}

/* Scan-line overlay */
.scan-line {
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 3px,
    rgba(0,0,0,0.04) 3px,
    rgba(0,0,0,0.04) 4px
  );
  pointer-events: none;
  z-index: 1000;
}

/* Header */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .75rem 2rem;
  background: rgba(13,15,26,0.92);
  border-bottom: 1px solid rgba(0,229,255,0.2);
  backdrop-filter: blur(8px);
}
.logo {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.2rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--cyan);
  text-decoration: none;
}
.header-nav a {
  color: var(--grey);
  text-decoration: none;
  font-family: var(--font-head);
  font-size: .85rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  transition: color .2s;
}
.header-nav a:hover { color: var(--cyan); }

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
}
.hero__bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(.35) saturate(.5);
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,229,255,0.08) 0%, rgba(255,36,64,0.05) 100%);
}

/* Laser beams */
.laser-beam {
  position: absolute;
  top: 0;
  height: 100%;
  width: 2px;
  opacity: 0;
  animation: beam-pulse 3s ease-in-out infinite;
}
.laser-beam--1 { left: 30%; background: linear-gradient(to bottom, transparent, var(--cyan), transparent); animation-delay: 0s; }
.laser-beam--2 { left: 55%; background: linear-gradient(to bottom, transparent, var(--red), transparent); animation-delay: 1s; }
.laser-beam--3 { left: 75%; background: linear-gradient(to bottom, transparent, var(--cyan), transparent); animation-delay: 2s; }

@keyframes beam-pulse {
  0%, 100% { opacity: 0; transform: scaleY(0); }
  30%, 70%  { opacity: .7; transform: scaleY(1); }
}

.hero__content {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 2rem;
  padding-top: 6rem;
}

/* Acronym title */
.acronym-reveal {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(5rem, 15vw, 12rem);
  letter-spacing: .05em;
  line-height: 1;
  margin-bottom: 1.5rem;
  position: relative;
}
.acronym-reveal .letter {
  display: inline-block;
  color: var(--cyan);
  text-shadow: 0 0 30px var(--cyan), 0 0 60px rgba(0,229,255,.4);
  position: relative;
  cursor: default;
  transition: transform .2s;
}
.acronym-reveal .letter::after {
  content: attr(data-word);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  font-size: .12em;
  font-weight: 300;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--grey);
  white-space: nowrap;
  opacity: 0;
  transition: opacity .2s, transform .2s;
  pointer-events: none;
}
.acronym-reveal .letter:hover { transform: translateY(-4px); }
.acronym-reveal .letter:hover::after { opacity: 1; transform: translateX(-50%) translateY(0); }
.acronym-reveal .dot { color: var(--red); font-size: .6em; vertical-align: super; }

.hero__subtitle {
  font-family: var(--font-head);
  font-size: .95rem;
  font-weight: 300;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--grey);
  margin-bottom: 1.5rem;
}

.label-row { display: flex; gap: .6rem; justify-content: center; flex-wrap: wrap; }
.label-tag {
  display: inline-block;
  padding: .3rem .8rem;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  text-decoration: none;
  font-family: var(--font-head);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  transition: background .2s, color .2s;
  clip-path: polygon(6px 0%, 100% 0%, calc(100% - 6px) 100%, 0% 100%);
}
.label-tag:hover { background: var(--cyan); color: var(--bg-deep); }

/* Panels */
.panel { position: relative; }
.panel__inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 5rem 2rem;
}
.panel--definition { background: var(--bg-panel); }
.panel--definition::before,
.panel--text::before,
.panel--quote::before {
  content: '';
  display: block;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--red), var(--cyan));
  margin-bottom: 0;
}
.panel--definition::before { position: absolute; top: 0; left: 0; right: 0; }
.panel--text { background: var(--bg-deep); }
.panel--text::before { position: absolute; top: 0; left: 0; right: 0; }
.panel--quote { background: var(--bg-alt); }
.panel--quote::before { position: absolute; top: 0; left: 0; right: 0; }
.panel--image { background: var(--bg-panel); padding: 0; }

/* Definition block */
.definition-block { display: flex; flex-direction: column; gap: .4rem; }
.def-line { display: flex; align-items: baseline; gap: 1rem; }
.def-letter {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 3.5rem;
  color: var(--cyan);
  text-shadow: 0 0 20px var(--cyan);
  line-height: 1;
  min-width: 3.5rem;
  text-align: center;
}
.def-word {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 1.4rem;
  color: var(--white);
  opacity: .85;
}

/* Body text */
.event-body { color: var(--white); }
.event-body p { margin-bottom: 1.25rem; }
.event-body a.external-link {
  display: inline-block;
  margin-top: .5rem;
  padding: .5rem 1.2rem;
  background: var(--cyan-dim);
  border: 1px solid var(--cyan);
  color: var(--cyan);
  text-decoration: none;
  font-family: var(--font-head);
  font-size: .9rem;
  letter-spacing: .1em;
  transition: background .2s, color .2s;
}
.event-body a.external-link:hover { background: var(--cyan); color: var(--bg-deep); }

/* Quote */
.geo-quote {
  border-left: 4px solid var(--red);
  padding: 1.5rem 2rem;
  background: rgba(255,36,64,0.06);
  font-style: italic;
  font-size: 1.05rem;
  line-height: 2;
  color: rgba(240,244,255,0.9);
  position: relative;
}
.geo-quote::before {
  content: '"';
  font-size: 5rem;
  color: var(--red);
  opacity: .3;
  position: absolute;
  top: -.5rem;
  left: .5rem;
  line-height: 1;
  font-family: serif;
}

/* Image panel */
.event-hero {
  display: block;
  position: relative;
}
.event-hero img {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  display: block;
  filter: brightness(.9) contrast(1.05);
}
.event-hero figcaption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,.7));
  color: var(--grey);
  font-size: .85rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 2rem 1.5rem .75rem;
  text-align: right;
}

/* Intersection reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* Footer */
.site-footer {
  background: var(--bg-panel);
  border-top: 1px solid rgba(0,229,255,0.15);
  padding: 2rem;
  text-align: center;
}
.event-collections {
  display: flex;
  gap: .75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.event-collections a {
  color: var(--grey);
  text-decoration: none;
  font-size: .85rem;
  letter-spacing: .1em;
  transition: color .2s;
}
.event-collections a:hover { color: var(--cyan); }
.footer-back a { color: var(--grey); text-decoration: none; font-size: .85rem; }
.footer-back a:hover { color: var(--white); }

/* Responsive */
@media (max-width: 768px) {
  .panel__inner { padding: 3rem 1.25rem; }
  .def-letter { font-size: 2.5rem; min-width: 2.5rem; }
  .def-word { font-size: 1.1rem; }
  .hero__content { padding: 5rem 1.25rem 2rem; }
}
@media (max-width: 480px) {
  .def-letter { font-size: 2rem; }
  .geo-quote { padding: 1rem 1.25rem; }
}

/* ── Lightbox ── */
#lightbox{display:none;position:fixed;inset:0;background:rgba(0,0,0,.9);
  z-index:9999;align-items:center;justify-content:center;
  flex-direction:column;gap:.5rem}
#lightbox img{max-width:90vw;max-height:80vh;object-fit:contain}
.lb-close{position:fixed;top:1rem;right:1.5rem;font-size:2.5rem;
  color:#fff;cursor:pointer;line-height:1;opacity:.8}
.lb-close:hover{opacity:1}
.lb-nav{position:fixed;top:50%;transform:translateY(-50%);font-size:3rem;
  color:#fff;cursor:pointer;padding:.5rem;user-select:none;opacity:.7}
.lb-nav:hover{opacity:1}
.lb-prev{left:1rem}.lb-next{right:1rem}
.lb-caption{color:#ccc;font-size:.9rem;text-align:center;max-width:80vw}