/* 
  Global layout: white/off-white brutalist canvas, full-viewport, no scrollbars.
  Typography: JetBrains Mono, light weights.
*/

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

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden; /* no native scrollbars; we pan the stage instead */
  background: var(--bg-colour, #f7f5f0); /* slightly off-white for tactile feel */
  color: #111111;
  font-family: "JetBrains Mono", "Cascadia Code", "Source Code Pro", Menlo, Monaco, "Courier New", monospace;
  font-weight: 400;
  text-transform: uppercase;
  font-size: var(--ui-text-size, 18px);
}

body {
  -webkit-font-smoothing: antialiased;
}

/* Reset for semantic elements */
figure {
  margin: 0;
  padding: 0;
}

/* Fixed navigation bar */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 1000;
  pointer-events: none; /* Container ignores events, children re-enable */
  mix-blend-mode: difference;
  background: transparent;
  color: var(--text-colour, #ffff00); /* yellow -> appears blue-ish with difference on white */
  text-transform: uppercase;
}

.nav-left {
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: var(--ui-text-size, 18px);
  pointer-events: auto; /* Re-enable for the brand/name if needed, or keep it none */
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-logo {
  height: 20px;
  width: auto;
  object-fit: contain;
}

/* Nav right — shared base for all injected items */

.nav-right {
  display: flex;
  align-items: center;
  gap: 0;
  pointer-events: none; /* container pass-through; children re-enable */
}

/* Base style for every nav interactive element (buttons + links) */
.nav-btn {
  display: inline;
  background: transparent;
  border: none;
  color: inherit;
  font-family: inherit;
  font-size: var(--ui-text-size, 18px);
  font-weight: inherit;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  padding: 0;
  cursor: pointer;
  pointer-events: auto;
  white-space: nowrap;
}

.nav-btn:hover {
  text-decoration: underline;
}

/* Separator pipe between nav items */
.nav-sep {
  font-size: var(--ui-text-size, 18px);
  letter-spacing: 0.04em;
  pointer-events: none;
  user-select: none;
}

/* Strikethrough = category is hidden / toggled off */
.nav-btn.is-struck {
  text-decoration: line-through;
}

.nav-btn.is-struck:hover {
  text-decoration: line-through underline;
}

/* Main viewport */

.viewport {
  position: fixed;
  inset: 0;
}

#stage-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
}

#stage-wrapper.is-dragging {
  cursor: grabbing;
}

/*
  The virtual canvas: intentionally larger than the viewport
  so that panning reveals more whitespace and objects.
*/

#stage {
  position: absolute;
  top: 0;
  left: 0;
  width: 9000px;
  height: 6500px;
  transform: translate3d(0, 0, 0) scale(1);
  transform-origin: 0 0;
  will-change: transform;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

#stage.is-interacting {
  transition: none;
}

/* Media items scattered across the stage */

.media-item {
  position: absolute;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  margin: 0;
  background: transparent;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
  border-radius: 2px;
  overflow: hidden;
  cursor: grab;
  transition: box-shadow 0.15s ease-out;
  will-change: left, top;
  position: absolute;
}

.media-item.is-dragging {
  cursor: grabbing;
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.16);
  transition: none;
}

/* Media items are dragged, not keyboard-navigated — no focus ring needed */
.media-item:focus {
  outline: none;
}

.media-item img,
.media-item video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.media-item video {
  background: #000;
  border: none;
  outline: none;
}

/* Loading & error states to avoid "empty frames" */

.media-item::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(247, 245, 240, 0.8);
  opacity: 0;
  transition: opacity 0.2s ease-out;
  pointer-events: none;
}

.media-item.loading::before {
  opacity: 1;
}

.media-item.loading img,
.media-item.loading video {
  opacity: 0;
}

.media-item.has-error {
  background: #0047ff; /* solid blue block for failed media */
}

.media-item.has-error::before {
  opacity: 0;
}

.reload-badge {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  padding: 0;
  margin: 0;
  cursor: pointer;
  letter-spacing: 0.16em;
  font-size: 14px;
  text-transform: uppercase;
  color: var(--text-colour, #ffff00);
  mix-blend-mode: difference;
}

.reload-badge:hover {
  opacity: 0.8;
}

/* Embedded video placeholder with play overlay */

.media-item.video-embed .video-placeholder {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  overflow: hidden;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
}

.media-item.video-embed .video-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.media-item.video-embed .video-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5); /* 50% black overlay */
  z-index: 1;
  pointer-events: none;
  transition: background 0.2s ease;
}

.media-item.video-embed .play-badge {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  pointer-events: none;
}

.media-item.video-embed .play-badge-text {
  color: var(--text-colour, #ffff00);
  mix-blend-mode: difference;
  font-size: 14px;
  letter-spacing: 0.16em;
  text-align: center;
}

.media-item.video-embed:hover .video-overlay {
  background: rgba(0, 0, 0, 0.7);
}

/* When iframe replaces placeholder */

.media-item.video-embed iframe {
  border: none;
  width: 100%;
  height: 100%;
  display: block;
}

/* Hide thumbnail placeholder while YT iframe is active */
.media-item.video-embed.is-playing .video-placeholder {
  display: none;
}

/* [x] reset button — returns the embed to its draggable thumbnail state */
.yt-reset-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 10;
  background: transparent;
  border: none;
  color: var(--text-colour, #ffff00);
  mix-blend-mode: difference;
  font-family: inherit;
  font-size: 14px;
  letter-spacing: 0.1em;
  cursor: pointer;
  padding: 4px 6px;
  pointer-events: auto;
  line-height: 1;
}

.yt-reset-btn:hover {
  opacity: 0.7;
}

/* Footer with zoom controls */

.footer {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  z-index: 1000;
  pointer-events: none; /* Container ignores events */
  mix-blend-mode: difference;
  background: transparent;
  color: var(--text-colour, #ffff00); /* yellow -> appears blue-ish with difference on white */
  text-transform: uppercase;
}

.zoom-btn {
  width: auto;
  height: auto;
  border-radius: 0;
  border: none;
  background: transparent;
  color: inherit;
  font-family: inherit;
  font-size: var(--ui-text-size, 18px);
  font-weight: 500;
  padding: 0;
  cursor: pointer;
  letter-spacing: 0.12em;
  pointer-events: auto; /* Re-enable for buttons */
}

.zoom-btn:hover {
  text-decoration: none;
}

.zoom-btn:active {
  opacity: 0.75;
}

/* Small helper for subtle debug text (if needed) */

.debug-label {
  position: fixed;
  left: 16px;
  bottom: 52px;
  font-size: 10px;
  opacity: 0.4;
  pointer-events: none;
}

/* Visually hidden but readable by screen readers */
#a11y-announcer {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── Info Overlay ───────────────────────────────────────────────────────────── */

#info-overlay {
  position: fixed;
  top: 64px;    /* clear nav */
  left: 0;
  right: 0;
  bottom: 48px; /* clear footer */
  z-index: 900; /* below nav (1000) */
  background: transparent; /* canvas items visible behind */
  display: none;
  padding: 48px 64px;
  overflow: hidden;
  /* blend-mode on container: yellow text -> blue against off-white, same as nav */
  mix-blend-mode: difference;
  /* Let mouse events pass through to the canvas so panning still works */
  pointer-events: none;
}

#info-overlay.is-visible {
  display: block;
}

#info-text {
  text-align: left;
  hyphens: auto;
  word-break: break-word;
  -webkit-hyphens: auto;
  font-family: inherit;
  font-weight: 300;
  text-transform: uppercase;
  color: var(--text-colour, #ffff00); /* yellow blended via parent difference = blue on white bg */
  line-height: 1.15;
  letter-spacing: 0.04em;
  /* font-size controlled by JS autoscaler */
  /* Allow clicking links and selecting text within the text block itself */
  pointer-events: auto;
  user-select: text;
  -webkit-user-select: text;
}

#info-text a {
  color: inherit;
  text-decoration: underline;
  pointer-events: auto; /* links are clickable even though overlay passes events through */
}

#info-text a:hover {
  opacity: 0.7;
}

#info-text strong {
  font-weight: 500;
}

#info-text em {
  font-style: italic;
  text-transform: none; /* preserve case for italic phrases */
}

/* ── Preloader ───────────────────────────────────────────────────────────── */

#preloader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 2000;
  pointer-events: none;
  mix-blend-mode: difference;
  color: var(--text-colour, #ffff00);
  font-family: "JetBrains Mono", "Cascadia Code", "Source Code Pro", Menlo, Monaco, "Courier New", monospace;
  font-size: 14px;
  line-height: 1;
}

#preloader-bar {
  display: block;
  white-space: pre;
  overflow: hidden;
  width: 100%;
  letter-spacing: 0;
}

#preloader-counter {
  position: fixed;
  bottom: 56px; /* sits just above the footer */
  left: 32px;
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Mobile adjustments */
@media (max-width: 768px) {
  :root {
    --ui-text-size: 14px;
  }
  #layout-panel { display: none; }

  .nav {
    padding: 16px 20px;
    padding-top: calc(16px + env(safe-area-inset-top));
    height: auto;
    min-height: 48px;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .nav-left {
    font-size: var(--ui-text-size, 18px);
    padding-top: 0;
    padding-bottom: 0;
  }

  /* Stack nav-right items vertically, top-left (aligned with nav-left) */
  .nav-right {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  /* Hide pipe separators on mobile — each item sits on its own line */
  .nav-sep {
    display: none;
  }

  .nav-btn {
    font-size: var(--ui-text-size, 18px);
  }

  .footer {
    padding: 0 16px;
    padding-bottom: env(safe-area-inset-bottom);
    height: auto;
    min-height: 48px;
    justify-content: flex-end; /* zoom controls bottom-right */
  }

  /* Zoom buttons same size as nav — no discrepancy */
  .zoom-btn {
    font-size: var(--ui-text-size, 18px);
  }

  /* Info Overlay Mobile Tweaks */
  #info-overlay {
    top: 0; /* Cover more area on mobile */
    bottom: 0;
    padding: 100px 20px 40px 20px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    pointer-events: none; /* Allow background scrolling/panning */
  }

  #info-text {
    width: 100%;
    max-width: none;
    font-size: 7vw; /* Fluid font for brutalist feel, but limited */
    line-height: 1.1;
  }
}

/* ── Category Panel ─────────────────────────────────────────────────────────── */

#category-panel {
  position: fixed;
  left: 32px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1000;
  pointer-events: none;
  mix-blend-mode: difference;
  color: var(--text-colour, #ffff00);
  font-family: inherit;
  font-size: var(--ui-text-size, 18px);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
}

/* ── Layout Panel ───────────────────────────────────────────────────────────── */

#layout-panel {
  position: fixed;
  right: 32px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1000;
  pointer-events: none;
  mix-blend-mode: difference;
  color: var(--text-colour, #ffff00);
  font-family: inherit;
  font-size: var(--ui-text-size, 18px);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.layout-option {
  background: transparent;
  border: none;
  color: inherit;
  font-family: inherit;
  font-size: var(--ui-text-size, 18px);
  font-weight: inherit;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: line-through; /* default: struck = inactive */
  padding: 0;
  cursor: pointer;
  pointer-events: auto;
  white-space: nowrap;
}

.layout-option.is-active {
  text-decoration: none; /* active mode = no strikethrough */
}

.layout-option:hover {
  text-decoration: underline;
}

/* ── Config: No Blend Mode ──────────────────────────────────────────────────── */

body.no-blend-mode .info-overlay,
body.no-blend-mode #layout-panel,
body.no-blend-mode #category-panel,
body.no-blend-mode .nav-btn,
body.no-blend-mode .layout-title,
body.no-blend-mode .site-title,
body.no-blend-mode .media-item .play-badge-text,
body.no-blend-mode .yt-reset-btn {
  mix-blend-mode: normal !important;
}

.layout-option.is-active:hover {
  text-decoration: underline;
}

/* Brutalist linear transition for layout changes — no easing */
.media-item.is-layouting {
  transition: left 0.4s linear, top 0.4s linear, width 0.4s linear !important;
}

/* =========================================================================
   Mobile Slideshow Mode
   ========================================================================= */

body.is-slideshow #stage-wrapper {
  overflow-y: auto;
  overflow-x: hidden;
  scroll-snap-type: y mandatory;
  cursor: auto;
  -webkit-overflow-scrolling: touch;
}

body.is-slideshow #stage {
  position: relative;
  width: 100%;
  height: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10vh;
  padding: 15vh 0;
  transform: none !important;
  will-change: auto;
}

body.is-slideshow .media-item {
  position: relative !important;
  display: flex !important;
  left: auto !important;
  top: auto !important;
  transform: none !important;
  width: 94vw !important;
  height: auto !important;
  aspect-ratio: auto !important;
  max-height: 80vh;
  scroll-snap-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  will-change: auto;
  margin-bottom: 0;
}

body.is-slideshow .media-item img,
body.is-slideshow .media-item video {
  width: 100% !important;
  height: auto !important;
  max-height: 80vh !important;
  object-fit: contain;
}
/* ── Mobile Mode Switcher ────────────────────────────────────────────────── */

#mode-switcher {
  position: fixed;
  left: 32px; /* fallback */
  bottom: 16px;
  z-index: 1100;
  mix-blend-mode: difference;
  color: var(--text-colour, #ffff00);
  background: transparent;
  border: none;
  font-family: inherit;
  font-size: var(--ui-text-size, 18px);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0;
  cursor: pointer;
  display: none;
  pointer-events: auto;
}

#mode-switcher:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  #mode-switcher {
    display: block;
    left: 20px; /* matching .nav padding-left */
    bottom: 16px; /* matching .nav padding-top */
    bottom: calc(16px + env(safe-area-inset-bottom));
  }

  /* When canvas mode is active on mobile, we hide layout selection (if any) 
     and category filters as requested for a cleaner 'only canvas' experience. */
  body:not(.is-slideshow) #category-panel,
  body:not(.is-slideshow) #layout-panel {
    display: none !important;
  }
}