/* ---------------------------------------------------
   Base / Reset
--------------------------------------------------- */

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

:root {
  --overlay-width: min(900px, 94vw);
  --left-col: 60%;
  --map-max: 560px;
  --device-max: 320px;
  --panel-gap: 20px;
  --text-max: 46rem;
  --muted-text: rgba(255, 255, 255, 0.9);
  --heading: rgba(255, 255, 255, 0.95);
}

body {
  margin: 0;
  padding: 24px;
  background-image: url("assets/tile.png");
  background-color: #ffffff;
  background-repeat: repeat;
  background-position: top left;
}

/* optional white background helper */
.bg {
  background-color: #ffffff;
}

/* utilities */
.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 180ms ease, visibility 180ms ease;
}

.no-scroll {
  overflow: hidden;
}

/* ---------------------------------------------------
   Sticky Header / Global Layout
--------------------------------------------------- */

/* @media (max-width: 768px) {
  .identify-btn {
    top: 60px;
    right: 16px;
    padding: 10px 16px;
    font-size: 14px;
  }
} */

/* ---------------------------------------------------
   Sticky Header / Global Layout
--------------------------------------------------- */

/* offset content so it doesn't hide behind sticky header */
main,
.content,
#gallery {
  margin-top: 56px;
}

/* ---------------------------------------------------
   Gallery Grid & Thumbnails
--------------------------------------------------- */

#gallery {
  width: 100%;
  padding-bottom: 20px;
  display: grid;
  gap: 0.5rem;
  --gallery-top-offset: 20px;
  padding-top: var(--gallery-top-offset);
}

/* make each gallery cell square */
#gallery > * {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  min-width: 0;
}

/* image fill behavior */
/* #gallery > * img,
#gallery > .gallery-item img,
.gallery-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
} */

/* selection outline */
.gallery-item.selected,
.col.selected {
  outline: 3px solid rgb(190, 0, 0);
  z-index: 2;
}

.gallery-item {
  transition: all 0.3s ease;
  cursor: pointer;
  border: 3px solid transparent;
}

.gallery-item:hover {
  border-color: #cab084;
  transform: scale(1.05);
}

.restore-filters-btn {
  margin-top: 12px;
  padding: 8px 10px;
  background-color: rgb(174, 2, 2);
  color: #ffffff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 600;
  transition: background-color 0.3s ease, transform 0.2s ease;
}

.restore-filters-btn:hover {
  background-color: rgb(200, 10, 10);
  transform: translateY(-1px);
}

/* ---------------------------------------------------
   Large Gallery / Carousel
--------------------------------------------------- */

.large-gallery {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 9999;
  backdrop-filter: blur(6px) saturate(90%);
}

.large-gallery .carousel-outer {
  width: min(92vw, 1100px);
  max-width: 1100px;
  max-height: 90vh;
  box-sizing: border-box;
  background: rgba(255, 252, 223, 0.96);
  border-radius: 12px;
  padding: 18px;
  box-shadow: 0 40px 80px rgba(2, 6, 23, 0.65), 0 8px 24px rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.03);
  position: relative;
  overflow: hidden;
}

.carousel-counter {
  position: absolute;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100020;
  padding: 10px 18px;
  background: rgba(0, 0, 0, 0.85);
  color: #ffffff;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 500;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.carousel-page-counter {
  text-align: center;
  padding: 12px;
  color: #000000;
  font-size: 0.95rem;
  font-weight: 500;
}

.large-gallery .close-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 1010;
}

.large-gallery .carousel-image-area {
  width: 100%;
  max-height: calc(90vh - 90px);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

#large-gallery .morph-btn,
#large-gallery #lightbox-morph-btn {
  position: absolute;
  top: 12px;
  left: 50%;
  background: #ffffff;
  color: #111111;
  transform: translateX(-50%);
  z-index: 1000;
  display: inline-block;
}

/* carousel base layout */
.carousel-outer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  box-sizing: border-box;
}

.carousel-image-area {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100vw;
  overflow: hidden;
  box-sizing: border-box;
}

.carousel-image-collection {
  display: flex;
  gap: 18px;
  align-items: center;
  justify-content: center;
  padding: 8px;
}

/* image container with overlay silhouette */
.carousel-image-container {
  position: relative;
  display: inline-block;
  max-width: 900px;
  max-height: 100vh;
  width: 100%;
  box-sizing: border-box;
  border-radius: 16px;
  z-index: 0;
}

/* base image */
.carousel-image-container .carousel-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 900px;
  max-height: 90vh;
  object-fit: contain;
  position: relative;
  transition: opacity 0.085s ease;
}

/* hide base image on hover / focus */
.carousel-image-container:hover > img.carousel-img,
.carousel-image-container:focus-within > img.carousel-img {
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms ease;
}

/* overlay silhouette image */
.carousel-image-container .silo-img {
  position: absolute;
  top: -24px;
  left: 0;
  width: 100%;
  height: 100%;
  max-width: 900px;
  max-height: 90vh;
  border-radius: 16px;
  object-fit: contain;
  z-index: 4;
  visibility: visible;
  transition: filter 220ms ease, opacity 200ms ease;
}

/* tint effect on hover */
.carousel-image-container:hover .silo-img,
.carousel-image-container:focus-within .silo-img {
  filter: invert(100%) sepia(10%) saturate(600%) hue-rotate(45deg) brightness(1);
}

/* optional caption */
.carousel-caption {
  max-width: 360px;
  margin-top: 12px;
  color: #000000;
  text-align: center;
  font-size: 14px;
  line-height: 1.2;
}

/* controls */
.close-btn {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 100020;
  padding: 8px 12px;
  background: #ffffff;
  color: #111111;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

/* carousel arrows */
.carousel-prev,
.carousel-next {
  background: #ffffff;
  color: #222222;
  border: none;
  font-size: 2rem;
  padding: 8px 12px;
  cursor: pointer;
  z-index: 10001;
  opacity: 0.9;
  margin: 0 8px;
  height: 56px;
  width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* accessibility / focus */
.carousel-prev:focus,
.carousel-next:focus,
.close-btn:focus {
  outline: 2px solid rgba(255, 255, 255, 0.22);
  outline-offset: 2px;
}

/* ---------------------------------------------------
   Scroll Card (bottom helper text)
--------------------------------------------------- */

.scroll-card {
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%) translateY(100%);
  opacity: 0;
  transition: transform 0.28s ease, opacity 0.28s ease;
  background: rgba(12, 12, 12, 0.92);
  color: #ffffff;
  padding: 12px 16px;
  border-radius: 10px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
  z-index: 9000;
  max-width: calc(100% - 40px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 0.95rem;
  pointer-events: auto;
}

.scroll-card.visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ---------------------------------------------------
   Landing Page (index.html)
--------------------------------------------------- */

.landing {
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* remove margins from direct children that might push content up */
#landing > * {
  margin: 0;
  padding: 30;
}

/* if there's a wrapper div inside #landing, center it too */
#landing > div {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 100%;
}

#landing {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  min-height: 100vh;
  background-image: url("assets/landing-bg2.jpg");
  background-size: cover;
  background-position: center;
  color: #ffffff;
  transition: opacity 600ms ease;
}

.landing-inner {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.dataset-link {
  text-decoration: underline;
  font-weight: 500;
}

.landing-panels {
  max-width: 1200px;
  padding: 24px;
  box-sizing: border-box;
  gap: 32px;
}

.landing-left {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  flex: 1 1 0;
  min-width: 260px;
}

.landing-right {
  margin-left: 0;
  transform: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* logo block */
#landing-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

#landing-logo-img {
  display: block;
  width: min(70%, 480px);
  height: auto;
  margin: 0 auto;
}

/* hero GIF */
.landing-hero {
  display: block;
  margin: 0 auto;
  width: min(420px, 65%);
  max-width: 420px;
  height: auto;
  transform: scaleX(-1);
  backface-visibility: hidden;
}

/* CTA buttons container */
.landing-cta {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  justify-content: center;
  margin-top: 3rem;
}

/* landing subheading text */
.landing-subheading {
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.05rem;
  font-weight: 300;
  line-height: 1.3;
  max-width: 760px;
  text-align: center;
  margin-inline: auto;
  padding: 0 12px;
}

/* enter / read-more buttons */
.enter-btn,
.read-btn {
  -webkit-appearance: none;
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 0;
  border-radius: 4px;
  width: 120px;
  height: 32px;
  font-size: 0.85rem;
  font-weight: 400;
  border: none;
}

.enter-btn {
  background-color: #000000;
  color: #ffffff !important;
}

.read-btn {
  background-color: rgba(255, 255, 255, 0.55);
  color: #000000 !important;
  font-weight: 700;
}

.landing-credit {
  margin-top: auto;
  padding: 0.75rem 1rem;
  text-align: center;
  width: 100%;
  color: #dddddd;
  font-size: 0.9rem;
}

/* layout-control grid switches logo/hero order */
.layout-control {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-areas:
    "logo"
    "hero";
  gap: 1.5rem;
  align-items: center;
}

/* logo alignment helpers */
.logo-panel {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
/* .logo-left {
  justify-content: center;
  align-items: flex-start;
  text-align: left;
}
.logo-center {
  justify-content: center;
  align-items: center;
  text-align: center;
}
.logo-right {
  justify-content: center;
  align-items: flex-end;
  text-align: right;
}

/* vertical control */
/* .logo-top {
  align-items: flex-start;
}
.logo-middle {
  align-items: center;
}
.logo-bottom {
  align-items: flex-end;
}
*/

/* hero panel helpers */
.hero-panel {
  display: flex;
  width: 100%;
  height: 100%;
}
.hero-left {
  justify-content: flex-start;
}
.hero-center {
  justify-content: center;
}
.hero-right {
  justify-content: flex-end;
}

.hero-top {
  align-items: flex-start;
}
.hero-middle {
  align-items: center;
}
.hero-bottom {
  align-items: flex-end;
}

/* offset tweaks via CSS variables */
.logo-offset {
  transform: translate(var(--x, 0), var(--y, 0));
}
.hero-offset {
  transform: translate(var(--x, 0), var(--y, 0));
}

/* ---------------------------------------------------
   Project Overlay ("Read More" panel)
--------------------------------------------------- */
/* .project-overlay-credits {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.18);
  z-index: 9999;
  padding: 24px;
  transition: opacity 220ms, visibility 220ms;
} */

.project-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.18);
  z-index: 9999;
  padding: 24px;
  transition: opacity 220ms, visibility 220ms;
}
.project-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* panel */
.project-panel {
  width: var(--overlay-width);
  max-height: 90vh;
  overflow: auto;
  padding: 32px;
  border-radius: 10px;
  background: rgba(12, 12, 12, 0.72);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  color: var(--muted-text);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

.project-panel-credits {
  width: var(--overlay-width);
  max-height: 90vh;
  overflow: auto;
  padding: 32px;
  border-radius: 10px;
  background: rgba(12, 12, 12, 0.72);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  color: var(--muted-text);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

/* two-column grid: left = portrait + text, right = map/device */
.project-grid {
  display: grid;
  grid-template-columns: var(--left-col) 1fr;
  grid-template-rows: auto 1fr;
  gap: var(--panel-gap);
  align-items: start;
}

/* small portrait used in the left column */
.wb-img {
  width: 100%;
  max-width: 120px;
  height: auto;
  border-radius: 8px;
  object-fit: cover;
  margin-bottom: 12px;
}

/* ensure images inside .wb-image sit side-by-side */
.wb-image {
  display: flex;
  flex-direction: row;
  gap: 12px;
  align-items: flex-start;
  flex-wrap: wrap;
}

/* prevent stretching */
.wb-image .wb-img {
  width: auto;
  max-width: 160px;
  margin-bottom: 0;
}

#ledger {
  max-width: 280px;
}

/* right column image (physiognotrace device) */
.panel-image {
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
}

.panel-image .overlay-img {
  flex: 0 0 auto;
  max-width: 280px;
  height: auto;
  object-fit: contain;
  align-self: flex-start;
}

/* typography */
.project-panel h2 {
  margin: 0 0 8px;
  font-size: 1.25rem;
  color: var(--heading);
}
.project-panel p {
  margin: 0 0 12px;
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.6;
  color: var(--muted-text);
}

.project-actions {
  display: flex;
  justify-content: flex-end;
}

.panel-footer {
  margin-top: 12px;
  display: flex;
  justify-content: flex-end;
}

/* ---------------------------------------------------
   Responsive
--------------------------------------------------- */

/* small phones */
@media (max-width: 480px) {
  .scroll-card {
    font-size: 0.9rem;
    padding: 10px 12px;
    bottom: 12px;
  }
}

/* up to small tablets */
@media (max-width: 900px) {
  .landing {
    min-height: 56vh;
  }

  .landing-credit {
    padding: 0.5rem;
    font-size: 0.85rem;
  }

  .landing-hero {
    max-width: 320px;
    width: 60vw;
  }

  .landing-subheading {
    font-size: 0.95rem;
    margin-top: 8px;
  }

  .landing-cta {
    margin-top: 1rem;
    gap: 0.5rem;
  }

  .landing-panels {
    padding: 0 8px;
    max-width: 98vw;
    gap: 24px;
  }

  #landing-logo-img {
    width: min(320px, 70vw);
  }

  /* stack project overlay images */
  .wb-image {
    flex-direction: column;
    gap: 8px;
  }
  .wb-image .wb-img {
    max-width: 100%;
  }
}

/* Remove gallery top padding on mobile to account for bottom nav */
@media (max-width: 1000px) {
  #gallery {
    padding-top: 0;
  }

  /* Offset scroll card so it doesn't hide behind bottom nav */
  .scroll-card {
    bottom: 48px; /* Move it above the bottom navigation bar */
  }

  .scroll-card.visible {
    transform: translateX(-50%) translateY(0);
  }
}

/* medium screens / tablets */
@media (max-width: 900px) {
  /* project overlay stacks vertically */
  .project-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
  }
  .wb-image {
    grid-row: 1;
  }
  .panel-content {
    grid-row: 2;
  }
  .panel-image {
    grid-row: 3;
    align-items: center;
    margin-top: 12px;
  }
  .wb-img {
    max-width: 200px;
  }
  .panel-image .overlay-img,
  .panel-image .overlay-map {
    max-width: 100%;
  }

  .panel-image img {
    width: 100%;
    max-height: 220px;
  }

  .panel-footer {
    justify-content: center;
  }

  /* large gallery images scale to viewport */
  .large-gallery img {
    max-width: 98vw;
    max-height: 60vh;
    margin: 0 4vw;
  }

  /* hide hero GIF on smaller screens if desired */
  .landing-hero {
    display: none;
  }
}

/* fine-tune carousel arrows on very narrow screens */
@media (max-width: 600px) {
  .carousel-prev,
  .carousel-next {
    font-size: 1.6rem;
    height: 48px;
    width: 40px;
    padding: 6px 10px;
  }

  .large-gallery .carousel-image-area {
    /* width: 100%; */
    max-height: calc(90vh - 90px);
    /* overflow: scroll; */
    display: grid;
    align-items: center;
    justify-content: center;
    gap: 20px;
    grid-auto-flow: column;
    grid-template-columns: unset;
    grid-auto-columns: 1fr;
  }
  .carousel-image-container {
    width: 50vw;
    scroll-snap-align: start;
  }

  .scroll-container {
    position: relative;
    overflow-x: scroll;
    scrollbar-width: none;
    scroll-snap-type: x mandatory;
  }

  .item-container {
    min-width: fit-content;
  }
}

/* landing layout: switch to two columns on md+ */
@media (min-width: 768px) {
  .layout-control {
    grid-template-columns: 1fr 1fr;
    grid-template-areas: "logo hero";
  }

  .layout-control .landing-left {
    grid-area: logo;
  }
  .layout-control .landing-right {
    grid-area: hero;
  }
}

/* legend icons shrink on very small widths */
/* @media (min-width: 200px) and (max-width: 400px) {
  .legend-icon.icon-men,
  .legend-icon.icon-women,
  .legend-icon.icon-children {
    width: 10vw;
    height: 10vw;
  }
} */

/* motion reduction */
@media (prefers-reduced-motion: reduce) {
  .carousel-image-collection,
  .carousel-image-container img {
    transition: none;
  }
}