/**
 * RAND SHOW 2026 — Event Gallery Page
 * Proof-of-presence social photo gallery.
 * Accent: gold (#e8cf00) / teal (#00d9bf). Dark ambient orb background.
 */

/* ── Event theme tokens ─────────────────────────────── */
:root {
  --ev-primary:  #e8cf00;
  --ev-accent:   #00d9bf;
  --ev-bg:       #060605;
  --ev-glass:    rgba(255,255,255,0.04);
  --ev-border:   rgba(255,255,255,0.09);
  --ev-glow-p:   rgba(232,207,0,0.18);
  --ev-glow-a:   rgba(0,217,191,0.18);
  --ev-text:     #f0f0e8;
  --ev-text-dim: rgba(240,240,232,0.5);
  --ev-radius:   12px;
  --ev-ease:     cubic-bezier(0.25,0.46,0.45,0.94);
  --ev-spring:   cubic-bezier(0.34,1.56,0.64,1);
}

/* ── Reset ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ev-bg);
  color: var(--ev-text);
  font-family: var(--pntd-font);
  font-size: 15px;
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100dvh;
}

a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
img { display: block; max-width: 100%; }

/* ── Ambient background ─────────────────────────────── */
.ambient-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.amb-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.22;
  will-change: transform;
}
.amb-orb--1 {
  width: 55vmax; height: 55vmax;
  background: var(--ev-primary);
  top: -15%; left: -15%;
  animation: orb1 28s infinite alternate ease-in-out;
}
.amb-orb--2 {
  width: 45vmax; height: 45vmax;
  background: var(--ev-accent);
  bottom: -10%; right: -10%;
  opacity: 0.18;
  animation: orb2 34s infinite alternate-reverse ease-in-out;
}
.amb-orb--3 {
  width: 35vmax; height: 35vmax;
  background: var(--ev-primary);
  top: 45%; left: 55%;
  opacity: 0.08;
  animation: orb3 22s infinite alternate ease-in-out;
}

@keyframes orb1 { to { transform: translate(8vw, 12vh) scale(1.08); } }
@keyframes orb2 { to { transform: translate(-10vw, -8vh) scale(1.05); } }
@keyframes orb3 { to { transform: translate(-12vw, 8vh) scale(1.15); } }

/* ── Hero ───────────────────────────────────────────── */
.ev-hero {
  position: relative;
  z-index: 1;
  padding: 120px 24px 64px;
  text-align: center;
}

.ev-hero__inner {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.ev-hero__eyebrow {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--ev-primary);
  opacity: 0.75;
}

.ev-hero__title {
  margin: 0;
  font-size: clamp(2.4rem, 7vw, 4.5rem);
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1;
  background: linear-gradient(160deg, #fff 30%, var(--ev-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.ev-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px 16px;
  font-size: 0.8rem;
  color: var(--ev-text-dim);
}

.ev-hero__meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}
.ev-hero__meta-item i {
  color: var(--ev-accent);
  font-size: 0.7rem;
}
.ev-hero__meta-sep {
  color: var(--ev-border);
}

.ev-hero__desc {
  margin: 0;
  font-size: 0.95rem;
  color: var(--ev-text-dim);
  max-width: 520px;
  text-align: center;
  line-height: 1.7;
}

/* ── Gallery section ────────────────────────────────── */
.ev-gallery {
  position: relative;
  z-index: 1;
  padding: 0 20px 80px;
  max-width: 1400px;
  margin: 0 auto;
}

/* Section divider */
.ev-gallery::before {
  content: '';
  display: block;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ev-primary), transparent);
  opacity: 0.3;
  margin-bottom: 48px;
}

.ev-gallery__loading {
  display: flex;
  justify-content: center;
  padding: 80px 0;
}

.ev-spinner {
  width: 36px; height: 36px;
  border: 2px solid rgba(255,255,255,0.08);
  border-top-color: var(--ev-primary);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Masonry grid ───────────────────────────────────── */
/*
 * Pure CSS masonry using grid.
 * Rows are fixed 6px units; JS sets grid-row-end after img load.
 * Aspect classes set initial estimated spans for CLS reduction.
 */
.ev-gallery__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 6px;
  gap: 12px;
}

/* ── Gallery item ───────────────────────────────────── */
.ev-photo {
  position: relative;
  overflow: hidden;
  border-radius: var(--ev-radius);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--ev-border);
  cursor: zoom-in;
  /* Initial row spans by aspect — JS refines after load */
  grid-row-end: span 60; /* square default ~360px / 6px */
}
.ev-photo--landscape { grid-row-end: span 44; } /* ~265px */
.ev-photo--portrait  { grid-row-end: span 80; } /* ~480px */
.ev-photo--square    { grid-row-end: span 60; }

.ev-photo__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.5s var(--ev-ease), transform 0.5s var(--ev-ease);
  transform: scale(1.02);
  will-change: opacity, transform;
}
.ev-photo__img.loaded {
  opacity: 1;
  transform: scale(1);
}
.ev-photo:hover .ev-photo__img {
  transform: scale(1.04);
}

/* Caption overlay */
.ev-photo__caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 28px 14px 12px;
  background: linear-gradient(to top, rgba(0,0,0,0.82) 0%, transparent 100%);
  font-size: 0.72rem;
  color: rgba(255,255,255,0.82);
  letter-spacing: 0.3px;
  opacity: 0;
  transition: opacity 0.3s;
}
.ev-photo:hover .ev-photo__caption,
.ev-photo:focus .ev-photo__caption { opacity: 1; }

/* Gold accent border on hover */
.ev-photo::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--ev-radius);
  border: 1.5px solid transparent;
  transition: border-color 0.3s;
  pointer-events: none;
}
.ev-photo:hover::after { border-color: rgba(232,207,0,0.35); }

/* Fade-in animation for each tile */
.ev-photo {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s var(--ev-ease), transform 0.5s var(--ev-ease),
              border-color 0.3s;
}
.ev-photo.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Empty state */
.ev-gallery__empty {
  grid-column: 1 / -1;
  padding: 80px 20px;
  text-align: center;
  color: var(--ev-text-dim);
  font-size: 0.82rem;
  letter-spacing: 2px;
  font-family: monospace;
}

/* ── Lightbox ───────────────────────────────────────── */
.ev-lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(4,4,3,0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px 40px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
}
.ev-lightbox.open {
  opacity: 1;
  pointer-events: auto;
}

.ev-lightbox__img-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
  width: 100%;
}

.ev-lightbox__img {
  max-width: min(100%, 1100px);
  max-height: 80vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.9);
  transform: scale(0.94);
  transition: transform 0.3s var(--ev-spring);
}
.ev-lightbox.open .ev-lightbox__img { transform: scale(1); }

.ev-lightbox__caption {
  margin-top: 16px;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.4px;
  text-align: center;
  min-height: 1.2em;
}

/* Lightbox controls */
.ev-lightbox__close {
  position: absolute;
  top: 16px; right: 16px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.6);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  transition: background 0.2s, color 0.2s;
  touch-action: manipulation;
}
.ev-lightbox__close:hover { background: rgba(255,255,255,0.14); color: #fff; }

.ev-lightbox__nav {
  position: absolute;
  top: 50%; transform: translateY(-50%);
  width: 48px; height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.5);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  transition: background 0.2s, color 0.2s, transform 0.2s;
  touch-action: manipulation;
}
.ev-lightbox__nav:hover { background: rgba(255,255,255,0.14); color: #fff; }
.ev-lightbox__nav--prev { left: 16px; }
.ev-lightbox__nav--next { right: 16px; }

/* ── Footer ─────────────────────────────────────────── */
.ev-footer {
  position: relative;
  z-index: 1;
  padding: 24px 24px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--ev-border);
  max-width: 1400px;
  margin: 0 auto;
}

.ev-footer__back {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--ev-text-dim);
  transition: color 0.2s;
  touch-action: manipulation;
}
.ev-footer__back:hover { color: var(--ev-accent); }
.ev-footer__back i { font-size: 0.7rem; }

.ev-footer__stamp {
  font-size: 0.65rem;
  font-family: monospace;
  letter-spacing: 3px;
  color: rgba(232,207,0,0.35);
  text-transform: uppercase;
}

/* ── Responsive ─────────────────────────────────────── */
@media (max-width: 900px) {
  .ev-gallery__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
}

@media (max-width: 540px) {
  .ev-hero { padding: 100px 16px 48px; }
  .ev-gallery { padding: 0 12px 60px; }
  .ev-gallery__grid {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    grid-auto-rows: 4px;
  }
  /* Re-tune spans for smaller rows on mobile */
  .ev-photo           { grid-row-end: span 80; }
  .ev-photo--landscape{ grid-row-end: span 58; }
  .ev-photo--portrait { grid-row-end: span 110; }
  .ev-photo--square   { grid-row-end: span 80; }

  .ev-lightbox__nav { display: none; }
  .ev-footer { flex-direction: column; gap: 12px; text-align: center; }
}

/* iPad Pro (1024px portrait) */
@media (min-width: 901px) and (max-width: 1200px) {
  .ev-gallery__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }
}

/* Large desktop */
@media (min-width: 1400px) {
  .ev-gallery__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}