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

:root {
  --black: #000;
  --white: #fff;
  --gray: #8a8a8a;
  --gap: 4px;
  --header-h: 40px;
  /* One shared margin so content aligns with the top menu */
  --pad-x: 12px;
  --pad-head: 12px;
  /* Shared column grid for nav, table and project info line */
  --table-cols: 3.5rem 1.15fr 1.3fr 1.3fr 1fr;
  /* Mobile: all five columns, evenly separated */
  --table-cols-sm: 2.2rem 1fr 1fr 1fr 2.4rem;
  --font: 'Montserrat', 'Helvetica Neue', Arial, sans-serif;
  --transition: 0.15s ease;
}

html {
  font-family: var(--font);
  font-size: 15px;
  font-weight: 300; /* Montserrat Light */
  letter-spacing: 0.06em;
  color: var(--black);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.35;
}

body { background: var(--white); }
body.no-scroll { overflow: hidden; height: 100vh; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
button { font: inherit; background: none; border: none; cursor: pointer; padding: 0; color: inherit; }

/* No dark tap-highlight flash on touch screens */
a, button {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

/* ===== HEADER (same line on every page) =====
   Nav items sit on the same grid as the table columns:
   Projects -> No/Project, Filter -> Format, About -> Year */
.header {
  position: sticky;
  top: 0;
  width: 100%;
  height: var(--header-h);
  padding: 0 var(--pad-head);
  display: flex;
  align-items: center;
  background: var(--white);
  /* Above Leaflet's panes (~700) and the map window (1000) so the
     Projects dropdown always overlays the map and stays readable */
  z-index: 1100;
}

.header-nav {
  width: 100%;
  display: grid;
  grid-template-columns: var(--table-cols);
  gap: var(--gap);
  align-items: center;
  /* Nav labels are controls: never text-selectable (blue highlight) */
  user-select: none;
  -webkit-user-select: none;
}

.nav-projects {
  grid-column: 1 / 3;
  position: relative;
  justify-self: start;
  /* Fills the header height so the hover reaches the dropdown band */
  height: var(--header-h);
  display: flex;
  align-items: center;
}

.nav-label { color: var(--black); cursor: default; }

/* Dropdown shown on hover over "Projects" */
/* One white band across the whole page width, holding both options */
.nav-dropdown {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  background: var(--white);
  padding: 6px var(--pad-head) 12px;
  z-index: 1001; /* above the map and its window */
}

.nav-projects:hover .nav-dropdown,
.nav-dropdown.open { display: flex; }

/* Closed on selection, even while the cursor is still hovering */
.nav-dropdown.force-closed { display: none !important; }

/* Dropdown items: solid black; hovering lightens the word you are
   about to pick; a dot marks the view/page you are on */
.nav-dropdown .nav-link { color: var(--black); }
.nav-dropdown .nav-link:hover { color: var(--gray); }

.nav-link.active::after {
  content: '●';
  font-size: 7px;
  margin-left: 8px;
}

.nav-map   { grid-column: 4; justify-self: start; }
.nav-about { grid-column: 5; justify-self: start; }

/* Menu items keep one constant tone — no lighter resting state */
.nav-link {
  color: var(--black);
  transition: color var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.nav-link.active { color: var(--black); }

@media (max-width: 640px) {
  /* The menu follows the same column grid and type size as the table:
     Projects/Filter/Map/About keep the table columns' separation */
  .header-nav {
    grid-template-columns: var(--table-cols-sm);
    font-size: 11px;
    letter-spacing: 0.04em;
  }
}

.filter-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 14px;
  height: 14px;
  background: var(--black);
  color: var(--white);
  font-size: 10px;
  padding: 0 3px;
}

/* ===== FILTER PANEL ===== */
.filter-panel {
  position: sticky;
  top: var(--header-h);
  background: var(--white);
  z-index: 1050; /* also above the map */
  display: none;
}

.filter-panel.open { display: block; }

/* Each filter group sits under its table column:
   Format -> col 3, Location -> col 4, Year -> col 5 */
.filter-panel-inner {
  padding: 8px var(--pad-x) 16px;
  display: grid;
  grid-template-columns: var(--table-cols);
  gap: var(--gap);
}

.fg-format   { grid-column: 3; grid-row: 1; }
.fg-location { grid-column: 4; grid-row: 1; }
.fg-year     { grid-column: 5; grid-row: 1; }

.filter-group-label {
  color: var(--gray);
  margin-bottom: 6px;
}

/* Options stack vertically under each group label */
.filter-options {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
}

.filter-option {
  transition: color var(--transition);
  color: var(--black);
}

.filter-option:hover  { color: var(--gray); }
.filter-option.active { text-decoration: underline; }

/* "Clear all" lives in the header, next to Filter */
.header-filter-group {
  grid-column: 3;
  justify-self: start;
  display: flex;
  align-items: center;
  gap: 20px;
}

.clear-filters {
  display: none;
  color: var(--gray);
  transition: color var(--transition);
}

.clear-filters.visible { display: inline-flex; }
.clear-filters:hover { color: var(--black); }

/* Mobile-only Clear all inside the filter panel (hidden on desktop) */
.clear-filters-panel {
  display: none;
  color: var(--gray);
  transition: color var(--transition);
}

.clear-filters-panel:hover { color: var(--black); }

/* ===== TEXT VIEW (table, main view) ===== */
.projects-table {
  padding: 90px 0 48px;
}

.table-header,
.table-row {
  display: grid;
  grid-template-columns: var(--table-cols);
  gap: var(--gap);
  padding: 7px var(--pad-x);
  color: var(--black);
}

.table-header {
  margin-bottom: 44px;
  font-weight: 400; /* regular, not light */
}

.table-row { transition: color var(--transition); }
.table-row:hover { color: var(--gray); }
.table-row.hidden { display: none; }

.table-cell {
  min-width: 0; /* lets grid tracks shrink below the text's natural width */
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (max-width: 640px) {
  .projects-table { padding-top: 70px; }
  /* Smaller type so all five columns read clearly on a phone */
  .table-header,
  .table-row {
    grid-template-columns: var(--table-cols-sm);
    font-size: 11px;
    letter-spacing: 0.04em;
    padding: 5px var(--pad-x);
  }
}

/* ===== IMAGE VIEW (grid: photos only, label on hover) ===== */
.projects-strip {
  display: none;
  /* Photos start at the same height as the Text view */
  padding: 90px var(--pad-x) 48px;
}

.projects-strip.active {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  /* Gap between projects equals the page side margins */
  column-gap: var(--pad-x);
  row-gap: 170px;
}

.strip-item {
  position: relative;
  display: block;
  min-width: 0; /* lets grid tracks shrink on narrow screens */
}

.strip-item.hidden { display: none; }

/* Code + project name, above the image, only visible on hover */
.strip-item-label {
  position: absolute;
  bottom: 100%;
  left: 0;
  padding-bottom: 8px;
  white-space: nowrap;
  color: var(--black);
  opacity: 0;
  transition: opacity var(--transition);
}

.strip-item:hover .strip-item-label { opacity: 1; }

/* Every cover shares the same portrait format (2:3, like 001) */
.strip-item-img {
  width: 100%;
  aspect-ratio: 2 / 3;
  overflow: hidden;
  background: #f0f0f0;
}

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

@media (max-width: 640px) {
  .projects-strip { padding-top: 70px; }
  .projects-strip.active {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 32px;
  }
  /* No hover on touch: the label is always visible above each cover */
  .strip-item-label {
    position: static;
    opacity: 1;
    white-space: normal;
    padding-bottom: 4px;
  }
}

/* ===== PROJECT PAGE ===== */
/* The project info IS the top line of the page (no menu here) */
.project-info {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  z-index: 25;
  background: var(--white);
  display: grid;
  grid-template-columns: var(--table-cols);
  gap: var(--gap);
  align-items: center;
  padding: 0 40px 0 var(--pad-head); /* right side leaves room for the ✕ */
}

/* Close cross at the right: back to Image or Text, wherever you came from */
.project-close {
  position: fixed;
  top: 0;
  right: var(--pad-head);
  height: var(--header-h);
  display: flex;
  align-items: center;
  z-index: 26;
  /* Text-sized, bold */
  font-size: 15px;
  font-weight: 700;
  transition: color var(--transition);
}

.project-close:hover { color: var(--gray); }

@media (max-width: 640px) {
  .project-info {
    grid-template-columns: var(--table-cols-sm);
    font-size: 11px;
    letter-spacing: 0.04em;
    padding-right: 34px;
  }
}

/* Slideshow: photo centred on the page, same margin below the top
   line as above the bottom line */
.project-stage {
  position: relative;
  margin-top: var(--header-h);
  height: calc(100vh - 2 * var(--header-h));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px var(--pad-x);
}

.project-stage img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  transition: filter 0.6s ease, opacity 0.6s ease;
}


/* Fast repeated clicks must never select or drag the photo (blue highlight) */
.project-stage,
.project-info,
.project-intro,
.project-footer {
  user-select: none;
  -webkit-user-select: none;
}

.project-stage img {
  -webkit-user-drag: none;
  user-drag: none;
}

/* Invisible click zones: left half = previous, right half = next.
   The cursor must not change over the photo */
.stage-zone {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 50%;
  z-index: 5;
  cursor: default;
}

#stage-prev { left: 0; }
#stage-next { right: 0; }

/* ── Project intro: info centred over the blurred photo for 2s,
     then rises to the persistent line position ── */
.project-intro {
  position: fixed;
  left: 0;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  height: var(--header-h);
  align-items: center;
  z-index: 28;
  display: grid;
  grid-template-columns: var(--table-cols);
  gap: var(--gap);
  padding: 0 40px 0 var(--pad-head);
  background: transparent;
  opacity: 0;
  pointer-events: none;
  transition: top 0.6s ease, transform 0.6s ease;
}

@media (max-width: 640px) {
  .project-intro {
    grid-template-columns: var(--table-cols-sm);
    font-size: 11px;
    letter-spacing: 0.04em;
    padding-right: 34px;
  }
}

body.intro-hold .project-intro,
body.intro-rise .project-intro { opacity: 1; }

body.intro-rise .project-intro {
  top: 0;
  transform: translateY(0);
}

/* Heavy blur + fade so the centred text always reads clearly */
body.intro-hold #project-photo {
  filter: blur(45px);
  opacity: 0.35;
}

/* Every click on the page is disabled while the intro is on screen */
body.intro-hold,
body.intro-rise { pointer-events: none; }

body.intro-hold .project-info,
body.intro-rise .project-info { opacity: 0; }

.project-info { transition: opacity 0.2s ease; }

.project-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--pad-x);
  background: var(--white);
  z-index: 26;
}

.project-counter { color: var(--gray); }

/* The + sits under the ✕, level with the page counter */
.description-toggle {
  position: fixed;
  right: var(--pad-head);
  bottom: 11px;
  z-index: 27;
  font-size: 22px;
  font-weight: 400;
  line-height: 1;
  transition: color var(--transition);
}

.description-toggle:hover { color: var(--gray); }

.project-description {
  display: none;
  position: fixed;
  bottom: 44px;
  right: var(--pad-x);
  /* Narrow column so it stays on the white band, off the photo */
  max-width: 200px;
  background: var(--white);
  padding: 16px;
  z-index: 27;
  line-height: 1.6;
  font-size: 11px;
}

.project-description.open { display: block; }

/* Blank line between description paragraphs */
.project-description p + p { margin-top: 1em; }

/* ===== ABOUT PAGE ===== */
.info-page {
  /* Clears the Projects dropdown when it opens over the page */
  padding: 100px var(--pad-x) 24px;
  max-width: 560px;
}

.info-page h1 {
  font-size: 15px;
  font-weight: 400; /* Montserrat Regular, not the browser's bold default */
  margin-bottom: 16px;
}

.info-page .copyright {
  color: var(--gray);
  font-size: 12px;
  margin-top: 24px;
}

.info-page p {
  line-height: 1.5;
  margin-bottom: 12px;
}

.info-page a { text-decoration: underline; transition: color var(--transition); }
.info-page a:hover { color: var(--gray); }

/* Message when no project survives the active filters.
   Lives inside each view, so it shows below the column headers */
.no-results {
  display: none;
  color: var(--gray);
}

body.no-matches .no-results { display: block; }

.projects-table .no-results { padding: 24px var(--pad-x) 0; }
.projects-strip .no-results { grid-column: 1 / -1; }

.no-results-map {
  position: absolute;
  top: 16px;
  left: var(--pad-x);
  right: var(--pad-x);
  z-index: 900; /* above the map tiles */
}

/* ===== MAP VIEW ===== */
.projects-map {
  display: none;
  height: calc(100vh - var(--header-h));
  background: #f2f2f2;
}

.projects-map.active { display: block; }

/* Marker: the project's cover photo pinned at its location */
.map-marker { background: none; border: none; }

.map-marker img {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border: 2px solid var(--white);
  box-shadow: 0 0 0 1px #bbb;
  cursor: pointer;
  display: block;
}

.map-marker:hover img { box-shadow: 0 0 0 1px var(--black); }

/* Project window over the map (no redirect) */
.map-modal {
  display: none;
  position: fixed;
  top: calc(var(--header-h) + 16px);
  left: 10%;
  right: 10%;
  bottom: 24px;
  background: var(--white);
  box-shadow: 0 0 0 1px #ddd, 0 12px 48px rgba(0,0,0,0.18);
  /* Above Leaflet's internal panes (they go up to ~700) */
  z-index: 1000;
  flex-direction: column;
  user-select: none;
  -webkit-user-select: none;
}

.map-modal.open { display: flex; }

.map-modal-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
}

.map-modal-info { display: flex; gap: 24px; }
.map-modal-info .gray { color: var(--gray); }

.map-modal-close {
  font-size: 20px;
  line-height: 1;
  transition: color var(--transition);
}

.map-modal-close:hover { color: var(--gray); }

.map-modal-stage {
  position: relative;
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  /* Generous margins: plenty of white around the photo */
  padding: 40px 100px 56px;
}

.map-modal-stage img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  -webkit-user-drag: none;
}

/* Click zones cover the whole window, white side bands included:
   left half = previous photo, right half = next */
.map-modal-stage .stage-zone { cursor: default; }
#map-modal-prev { left: 0; }
#map-modal-next { right: 0; }

.map-modal-counter {
  position: absolute;
  left: 16px;
  bottom: 10px;
  color: var(--gray);
}

@media (max-width: 640px) {
  .map-modal { left: 4%; right: 4%; }
  .map-modal-stage { padding: 20px 16px 44px; }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
  /* Filter keeps the three-column layout of the site, smaller type */
  .filter-panel-inner {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    font-size: 11px;
    letter-spacing: 0.04em;
  }
  .fg-format, .fg-location, .fg-year { grid-column: auto; grid-row: auto; }
  .project-description { max-width: 70vw; }
  .project-counter { font-size: 11px; letter-spacing: 0.04em; }
  .no-results { font-size: 11px; letter-spacing: 0.04em; }
  /* Clear all lives under the Format group on phones — cleaner header */
  .header-filter-group .clear-filters { display: none !important; }
  .clear-filters-panel {
    display: block;
    grid-column: 1;
    justify-self: start;
    margin-top: 14px;
    font-size: 11px;
    letter-spacing: 0.04em;
  }
  /* Smaller type: Image view labels, About page, map window */
  .strip-item-label { font-size: 11px; letter-spacing: 0.04em; }
  .info-page { font-size: 12px; }
  .info-page h1 { font-size: 12px; }
  .map-modal-info { font-size: 11px; letter-spacing: 0.04em; }
  .map-modal-counter { font-size: 11px; }
}

/* Mobile browsers: use the dynamic viewport height so the address
   bar doesn't push content off screen */
@supports (height: 100dvh) {
  body.no-scroll { height: 100dvh; }
  .project-stage { height: calc(100dvh - 2 * var(--header-h)); }
  .projects-map  { height: calc(100dvh - var(--header-h)); }
}