/* =========================================================================
   EventBooth Media Site — style.css
   Mobile-first, responsive gallery.  No framework dependencies.
   ========================================================================= */

/* ── Custom properties (theme) ──────────────────────────────────────────── */
:root {
  --clr-bg:          #0f0f10;
  --clr-surface:     #1a1a1c;
  --clr-surface-alt: #232326;
  --clr-border:      #2e2e32;
  --clr-text:        #f0f0f2;
  --clr-text-muted:  #888890;
  --clr-accent:      #6c63ff;
  --clr-accent-dark: #5550d4;
  --clr-danger:      #e05252;
  --clr-success:     #52c97a;

  --radius:          10px;
  --radius-lg:       16px;
  --shadow-card:     0 2px 12px rgba(0, 0, 0, 0.45);
  --transition:      0.18s ease;

  --grid-cols-mobile: 2;
  --grid-cols-tablet: 3;
  --grid-cols-desktop: 4;
}

/* ── Reset ──────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
               Helvetica, Arial, sans-serif;
  background: var(--clr-bg);
  color: var(--clr-text);
  min-height: 100dvh;
  line-height: 1.5;
}
img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }

/* ── Layout ─────────────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* ── Header ─────────────────────────────────────────────────────────────── */
.site-header {
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}


.event-info h1 {
  font-size: clamp(1.1rem, 4vw, 1.5rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.event-info .event-date {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  margin-top: 0.15rem;
}

/* Share button */
.share-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  background: var(--clr-accent);
  color: #fff;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
  transition: background var(--transition), transform var(--transition);
}
.share-btn:hover { background: var(--clr-accent-dark); transform: translateY(-1px); }
.share-btn:active { transform: translateY(0); }
.share-btn .icon { font-size: 1rem; }

/* ── Main content ───────────────────────────────────────────────────────── */
main { padding: 2rem 0 4rem; }

/* ── Section headings ───────────────────────────────────────────────────── */
.section-heading {
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--clr-text-muted);
  margin-bottom: 1rem;
}

/* ── Photo grid ─────────────────────────────────────────────────────────── */
#photos-section { margin-bottom: 2.5rem; }

.photo-grid {
  display: grid;
  grid-template-columns: repeat(var(--grid-cols-mobile), 1fr);
  gap: 0.5rem;
}

@media (min-width: 540px) {
  .photo-grid { grid-template-columns: repeat(var(--grid-cols-tablet), 1fr); }
}
@media (min-width: 900px) {
  .photo-grid { grid-template-columns: repeat(var(--grid-cols-desktop), 1fr); }
}

.photo-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--clr-surface);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  outline-offset: 3px;
}
.photo-item:hover { transform: scale(1.03); box-shadow: var(--shadow-card); }
.photo-item:focus-visible { outline: 2px solid var(--clr-accent); }
.photo-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.3s;
}

/* Zoom overlay hint */
.photo-item::after {
  content: '⤢';
  position: absolute;
  bottom: 0.4rem;
  right: 0.5rem;
  font-size: 1rem;
  color: rgba(255,255,255,0.7);
  opacity: 0;
  transition: opacity var(--transition);
}
.photo-item:hover::after { opacity: 1; }

/* ── Boomerang section ──────────────────────────────────────────────────── */
#boomerang-section { margin-bottom: 2.5rem; }

.boomerang-wrapper {
  background: var(--clr-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--clr-border);
  max-width: 480px;
}

.boomerang-wrapper video,
.boomerang-wrapper img.boomerang-gif {
  width: 100%;
  height: auto;
  display: block;
}

/* ── Downloads section ──────────────────────────────────────────────────── */
#downloads-section { margin-bottom: 2.5rem; }

.download-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.1rem;
  background: var(--clr-surface-alt);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  transition: background var(--transition), border-color var(--transition),
              transform var(--transition);
}
.download-btn:hover {
  background: var(--clr-surface);
  border-color: var(--clr-accent);
  transform: translateY(-1px);
}
.download-btn:active { transform: translateY(0); }
.download-btn .dl-icon { font-size: 1.1rem; }

/* ── Loading state ──────────────────────────────────────────────────────── */
#loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 50vh;
  gap: 1rem;
  color: var(--clr-text-muted);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--clr-border);
  border-top-color: var(--clr-accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── Error state ────────────────────────────────────────────────────────── */
#error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 50vh;
  text-align: center;
  gap: 0.75rem;
  padding: 2rem;
}

.error-icon { font-size: 3rem; }
#error h2 { font-size: 1.25rem; color: var(--clr-danger); }
#error-message { color: var(--clr-text-muted); max-width: 380px; }

/* ── Lightbox ───────────────────────────────────────────────────────────── */
#lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  outline: none;
}

.lightbox-toolbar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: linear-gradient(to bottom, rgba(0,0,0,0.7) 0%, transparent 100%);
}

.lightbox-counter {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.75);
  font-variant-numeric: tabular-nums;
}

.lightbox-close {
  font-size: 1.5rem;
  color: #fff;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  transition: background var(--transition);
}
.lightbox-close:hover { background: rgba(255,255,255,0.15); }

.lightbox-img-wrap {
  max-width: min(90vw, 900px);
  max-height: 80dvh;
  display: flex;
  align-items: center;
  justify-content: center;
}

#lightbox-img {
  max-width: 100%;
  max-height: 80dvh;
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: 0 8px 48px rgba(0,0,0,0.8);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.1);
  color: #fff;
  font-size: 1.5rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  transition: background var(--transition);
  user-select: none;
}
.lightbox-nav:hover { background: rgba(255,255,255,0.25); }
#lightbox-prev { left: 0.75rem; }
#lightbox-next { right: 0.75rem; }

@media (max-width: 480px) {
  .lightbox-nav { width: 36px; height: 36px; font-size: 1.2rem; }
  #lightbox-prev { left: 0.25rem; }
  #lightbox-next { right: 0.25rem; }
}

/* ── Toast ──────────────────────────────────────────────────────────────── */
#toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(0.5rem);
  background: var(--clr-success);
  color: #fff;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  z-index: 2000;
  white-space: nowrap;
}
#toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── Utility ─────────────────────────────────────────────────────────────── */
[hidden] { display: none !important; }

/* ── Live badge (event gallery auto-refresh indicator) ───────────────────── */
.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.65rem;
  background: rgba(82, 201, 122, 0.15);
  border: 1px solid rgba(82, 201, 122, 0.35);
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--clr-success);
  white-space: nowrap;
  user-select: none;
}

.live-badge__dot {
  width: 7px;
  height: 7px;
  background: var(--clr-success);
  border-radius: 50%;
  animation: live-pulse 1.8s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes live-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.35; transform: scale(0.7); }
}

/* ── Skeleton loading tiles ──────────────────────────────────────────────── */
.skeleton-tile {
  aspect-ratio: 1;
  border-radius: var(--radius);
  background: var(--clr-surface);
  overflow: hidden;
  position: relative;
}

.skeleton-tile::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.06) 40%,
    rgba(255, 255, 255, 0.10) 50%,
    rgba(255, 255, 255, 0.06) 60%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.4s ease-in-out infinite;
}

@keyframes shimmer {
  0%   { background-position: 200% center; }
  100% { background-position: -200% center; }
}

/* ── Empty state ─────────────────────────────────────────────────────────── */
#empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 50vh;
  text-align: center;
  gap: 0.85rem;
  padding: 2rem;
}

.empty-icon { font-size: 3rem; }
#empty-state h2 { font-size: 1.2rem; color: var(--clr-text); }
#empty-state p  { color: var(--clr-text-muted); max-width: 340px; font-size: 0.9rem; }

/* ── Photo count badge (below section heading) ───────────────────────────── */
.photo-count {
  font-size: 0.8rem;
  color: var(--clr-text-muted);
  margin-top: -0.5rem;
  margin-bottom: 0.85rem;
}

/* ── Lightbox download button ────────────────────────────────────────────── */
.lightbox-download {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 1rem;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-radius: var(--radius);
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.18);
  transition: background var(--transition), border-color var(--transition);
  white-space: nowrap;
}

.lightbox-download:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: rgba(255, 255, 255, 0.35);
}

/* Position the download button inside the lightbox toolbar */
.lightbox-toolbar {
  /* override to three-zone layout: counter | download | close */
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}

.lightbox-toolbar .lightbox-counter { justify-self: start; }
.lightbox-toolbar .lightbox-download { justify-self: center; }
.lightbox-toolbar .lightbox-close    { justify-self: end; }

@media (max-width: 360px) {
  .lightbox-download span { display: none; }  /* show icon only on tiny phones */
}

/* ── QR generator page ───────────────────────────────────────────────────── */
.qr-page {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  gap: 1.5rem;
  text-align: center;
}

.qr-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 2rem 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  max-width: 360px;
  width: 100%;
}

.qr-card h1 {
  font-size: 1.15rem;
  font-weight: 700;
}

.qr-code-wrap {
  background: #fff;
  border-radius: var(--radius);
  padding: 0.75rem;
  display: inline-flex;
}

.qr-url {
  font-size: 0.75rem;
  color: var(--clr-text-muted);
  word-break: break-all;
  max-width: 100%;
  line-height: 1.4;
}

.qr-actions {
  display: flex;
  gap: 0.6rem;
  width: 100%;
}

.qr-btn {
  flex: 1;
  padding: 0.6rem 0.5rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 600;
  text-align: center;
  transition: background var(--transition), transform var(--transition);
}

.qr-btn-copy {
  background: var(--clr-accent);
  color: #fff;
}
.qr-btn-copy:hover  { background: var(--clr-accent-dark); transform: translateY(-1px); }
.qr-btn-copy:active { transform: translateY(0); }

.qr-btn-print {
  background: var(--clr-surface-alt);
  color: var(--clr-text);
  border: 1px solid var(--clr-border);
}
.qr-btn-print:hover  { border-color: var(--clr-accent); transform: translateY(-1px); }
.qr-btn-print:active { transform: translateY(0); }

.qr-open-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--clr-accent);
  font-size: 0.85rem;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.qr-open-link:hover { color: var(--clr-accent-dark); }

/* Print styles — clean white background for the QR code printout */
@media print {
  body { background: #fff !important; color: #000 !important; }
  .qr-btn-copy, .qr-btn-print, .qr-open-link { display: none !important; }
  .qr-card {
    background: #fff !important;
    border: none !important;
    box-shadow: none !important;
  }
  .qr-card h1, .qr-url { color: #000 !important; }
}