:root,
[data-bs-theme=light] {
  --bs-font-sans-serif: 'Instrument Sans';
}

.serif {
  font-family: 'Instrument Serif';
}

/* Fullscreen Intro Overlay */

#intro-overlay {
  position: fixed;
  overflow: hidden;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1), transform 0.9s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.9s;
}

/* Entrance Card Styling */

.invitation-card {
  background: #ffffff;
  border: 1px solid rgba(122, 104, 85, 0.15);
  border-radius: 4px;
  max-width: 440px;
  width: 90%;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.04);
  position: relative;
  z-index: 20;
  transition: opacity 0.4s ease-out;
}

.font-serif {
  font-family: var(--font-serif);
}

.subtitle {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: #8a5a2b;
  text-transform: uppercase;
}

.passcode-input {
  letter-spacing: 0.15em;
  border: 1px solid #e0dad3;
  border-radius: 2px;
  font-size: 0.95rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.passcode-input:focus {
  border-color: #d4af37;
  box-shadow: 0 0 0 0.2rem rgba(122, 104, 85, 0.15);
}

.btn-unlock {
  background-color: #d4af37;
  color: #ffffff;
  border: none;
  border-radius: 2px;
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 0.75rem;
  transition: background-color 0.2s ease;
}

.btn-unlock:hover,
.btn-unlock:focus {
  background-color: #5c4e3f;
  color: #ffffff;
}

.envelope-video {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  object-fit: cover;
  z-index: 10;
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
}

.envelope-video.visible {
  opacity: 1;
}

.invitation-card.hide-card {
  opacity: 0;
  pointer-events: none;
}

.gold {
  color: #d4af37;
}

.muted {
  color: #2f241b;
}

.btn-primary {
  background-color: #d4af37;
  border-color: #d4af37;
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: #bfa12e;
  border-color: #bfa12e;
}

.btn-secondary {
  background-color: #8a5a2b;
  border-color: #8a5a2b;
}

.collage-scrim {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  /* Soft dimming layer; adjust opacity if you want photos darker or brighter */
  z-index: 2;
}

/* Ensure card and video remain above the collage */
.invitation-card,
.envelope-video {
  z-index: 10;
}

/* Update .photo-collage to handle smooth fading */
.photo-collage {
  position: absolute;
  inset: -20px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(clamp(100px, 9vw, 180px), 1fr));
  grid-auto-rows: clamp(100px, 9vw, 180px);
  grid-auto-flow: dense;
  gap: 8px;
  z-index: 1;
  opacity: 0.45;
  filter: sepia(15%) contrast(95%);
  /* Smooth opacity transition for refreshes */
  transition: opacity 0.6s ease-in-out;
}

/* Fade state triggered by JS during refresh */
.photo-collage.fading {
  opacity: 0 !important;
}

.collage-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 4px;
  transition: transform 0.6s ease;
}

/* Explicit JS-controlled tile sizing classes */
.collage-img.span-2x2 {
  grid-column: span 2;
  grid-row: span 2;
}

.collage-img.span-2x1 {
  grid-column: span 2;
  grid-row: span 1;
}

.collage-img.span-1x2 {
  grid-column: span 1;
  grid-row: span 2;
}

@media (max-width: 576px) {
  .photo-collage {
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    grid-auto-rows: 90px;
    gap: 4px;
  }
}

.zoom-section {
  height: 100vh;
  width: 100%;
  position: relative;
}

.zoom-container {
  height: 100vh;
  width: 100%;
  overflow: hidden;
}

/* Mobile default starting size */
.img-wrapper {
  width: 90vw;
  height: 70vh;
  position: relative;
  overflow: hidden;
  border-radius: 1rem;
}

/* Desktop starting size (keeps it landscape so it doesn't jump) */
@media (min-width: 768px) {
  .img-wrapper {
    width: 60vw;
    height: 60vh;
  }
}

.zoom-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blue-bg {
  background-color: #E8F0FA;
}

.authenticated #loading-skeleton {
  display: none !important;
}

.header-hero {
  min-height: calc(100vh - 68px);
  /* 100% mobile screen height minus navbar */
  background-color: #4d90e1;
  position: relative;
  overflow: hidden;
}

.header-hero-img {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
  background-image: url('../img/madeiralandscape.jpg');
  background-repeat: no-repeat;
}

@media (max-width: 767.98px) {
  .header-hero-img {
    top: 38vh;
    /* Solid #4d90e1 blue covers top 38% of screen */
    background-size: cover;
    background-position: center bottom;
  }
}

@media (min-width: 768px) {
  .header-hero {
    min-height: 100vh;
  }

  .header-hero-img {
    top: 0;
    background-size: cover;
    background-position: center top;
  }
}

.medium-heading {
  font-size: clamp(20px, 4vw, 35px);
}