/* ==========================================================================
   SINGULARITY 2055 — PRESS KIT STYLESHEET
   --------------------------------------------------------------------------
   Organised into the following sections:
     1. Font imports & @font-face placeholders
     2. CSS custom properties (design tokens) — EDIT COLOURS HERE
     3. Base & reset
     4. Layout: two-column sticky sidebar structure
     5. Sidebar (Quick Facts, buttons)
     6. Hero section
     7. Generic content sections
     8. Faction blocks: Axiom vs TDC
     9. Media gallery (categories + grid + selection UI)
    10. Logos / Branding showcase
    11. About section
    12. Footer / disclaimer
    13. Responsive breakpoints
   ========================================================================== */


/* ==========================================================================
   1. FONT IMPORTS
   --------------------------------------------------------------------------
   Google Fonts: Orbitron (hero), Oswald (Axiom titles), Roboto (Axiom body),
                 Black Ops One (TDC titles), Poppins (TDC body).
   @font-face:   'Edo SZ' (TDC subheaders) — self-hosted from
                 assets/fonts/. Licensed under 1001Fonts FFC for commercial
                 use; see assets/fonts/1001fonts-edo-sz-eula.txt.
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Oswald:wght@400;600;700&family=Roboto:wght@400;500;700&family=Black+Ops+One&family=Poppins:wght@300;400;600;700&display=swap');

/* Edo SZ — the TDC subheader display face. Self-hosted. Browsers pick the
   first format they support, so modern browsers grab the smaller WOFF
   (~21KB) and the TTF is a safety fallback. Only one file is downloaded
   per visitor. */
@font-face {
  font-family: 'Edo SZ';
  src: url('../assets/fonts/edo-sz.woff') format('woff'),
       url('../assets/fonts/edo-sz.ttf')  format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: swap; /* show fallback font until Edo loads, then swap in */
}


/* ==========================================================================
   2. DESIGN TOKENS
   --------------------------------------------------------------------------
   Change values here to retheme the whole site. Every component pulls from
   these variables — do not hardcode colours inside components.
   ========================================================================== */
:root {
  /* Site chrome (dark theme) */
  --bg-primary:      #0a0a0c;   /* main page background */
  --bg-secondary:    #131318;   /* sidebar, cards */
  --bg-tertiary:     #1c1c24;   /* elevated panels */
  --bg-panel-dark:   #0f0f13;   /* faction panels */
  --border-subtle:   #2a2a33;   /* dividers */
  --text-primary:    #e8e8ec;   /* main body copy */
  --text-secondary:  #a0a0ac;   /* muted copy */

  /* Axiom faction palette */
  --axiom-green:     #3CAB24;
  --axiom-green-dim: #2a7a19;
  --axiom-offwhite:  #ECFBE9;

  /* TDC faction palette */
  --tdc-pink:        #D80BF4;
  --tdc-pink-dim:    #9c08b0;
  --tdc-pink-glow:   rgba(216, 11, 244, 0.35);

  /* Layout */
  --sidebar-width:   340px;
  --content-gap:     48px;
  --max-width:       1400px;
  --radius-sm:       4px;
  --radius-md:       8px;

  /* Typography — font stacks centralised so swaps are painless */
  --font-hero:       'Orbitron', 'Arial Black', sans-serif;
  --font-axiom-title:'Oswald', 'Arial Narrow', sans-serif;
  --font-axiom-body: 'Roboto', system-ui, sans-serif;
  --font-tdc-title:  'Black Ops One', 'Impact', sans-serif;
  --font-tdc-sub:    'Edo SZ', 'Black Ops One', sans-serif;
  --font-tdc-body:   'Poppins', system-ui, sans-serif;
  --font-ui:         'Oswald', system-ui, sans-serif; /* chrome / sidebar */
  --font-body:       'Roboto', system-ui, sans-serif;
}


/* ==========================================================================
   3. BASE & RESET
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  /* Subtle grain texture to avoid flat "AI slop" dark backgrounds */
  background-image:
    radial-gradient(circle at 20% 10%, rgba(60, 171, 36, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 80% 60%, rgba(216, 11, 244, 0.05) 0%, transparent 45%);
  background-attachment: fixed;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* Focus ring for keyboard users — accessibility */
:focus-visible {
  outline: 2px solid var(--axiom-green);
  outline-offset: 2px;
}


/* ==========================================================================
   4. LAYOUT: two-column sticky sidebar
   ========================================================================== */
.page-wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

.press-layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  gap: var(--content-gap);
  align-items: start;
  padding: 32px 0 96px;
}


/* ==========================================================================
   5. SIDEBAR
   ========================================================================== */
.sidebar {
  position: sticky;
  top: 24px;
  align-self: start;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  padding: 28px 24px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  /* thin, uniform scrollbar */
  scrollbar-width: thin;
  scrollbar-color: var(--border-subtle) transparent;
}

.sidebar::-webkit-scrollbar { width: 6px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border-subtle); border-radius: 3px; }

.sidebar__studio-logo {
  width: 100%;
  max-width: 220px;
  margin: 0 auto 20px;
}

.sidebar__title {
  font-family: var(--font-hero);
  font-size: 22px;
  letter-spacing: 0.1em;     /* slightly wider for all-caps legibility */
  text-transform: uppercase;
  text-align: center;
  margin: 0 0 4px;
  color: var(--text-primary);
}

.sidebar__subtitle {
  text-align: center;
  font-family: var(--font-ui);
  font-size: 13px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin: 0 0 24px;
}

.sidebar__divider {
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-subtle), transparent);
  border: none;
  margin: 20px 0;
}

.factsheet-heading {
  font-family: var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 12px;
  color: var(--text-secondary);
  margin: 0 0 12px;
}

.factsheet {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  font-size: 14px;
}

.factsheet li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.factsheet li:last-child { border-bottom: none; }

.factsheet .label {
  font-family: var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 11px;
  color: var(--text-secondary);
}

.factsheet .value {
  color: var(--text-primary);
  text-align: right;
}

/* Primary action button — the 'Request Press Copy' CTA */
.btn-primary {
  display: block;
  width: 100%;
  padding: 14px 18px;
  background: linear-gradient(135deg, var(--axiom-green), var(--axiom-green-dim));
  color: #fff;
  text-align: center;
  font-family: var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 700;
  font-size: 13px;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease;
  margin-top: 8px;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(60, 171, 36, 0.4);
}


/* ==========================================================================
   6. HERO SECTION
   --------------------------------------------------------------------------
   Full-width banner image on top, title + trailer below (as chosen in brief).
   ========================================================================== */
.hero {
  width: 100%;
  margin-bottom: 56px;
}

.hero__banner {
  width: 100%;
  height: auto;       /* preserve the key art's native aspect ratio */
  display: block;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

/* Breathing room between the key-art banner and the trailer below it */
.hero__spacer { height: 40px; margin: 0; }



.hero__title {
  font-family: var(--font-hero);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 900;
  letter-spacing: 0.08em;
  text-align: center;
  margin: 40px 0 8px;
  /* subtle dual-faction gradient tying the two colours together */
  background: linear-gradient(90deg, var(--axiom-green) 0%, #fff 50%, var(--tdc-pink) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__tagline {
  text-align: center;
  font-family: var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 0.35em;
  font-size: 13px;
  color: var(--text-secondary);
  margin: 0 0 40px;
}

.hero__trailer {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.hero__trailer iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}


/* ==========================================================================
   7. GENERIC CONTENT SECTIONS
   ========================================================================== */
.section { margin-bottom: 80px; }

.section__label {
  font-family: var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 0.3em;
  font-size: 11px;
  color: var(--text-secondary);
  margin: 0 0 8px;
}

.section__title {
  font-family: var(--font-hero);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: 0.06em;       /* slightly wider for all-caps legibility */
  text-transform: uppercase;    /* matches the Orbitron game-title aesthetic */
  margin: 0 0 24px;
  color: var(--text-primary);
}

.pitch-text {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--text-primary);
  max-width: 72ch;
}


/* ==========================================================================
   8. FACTION BLOCKS
   --------------------------------------------------------------------------
   Each faction gets a visually distinct card with its own typography + colour.
   ========================================================================== */
.faction {
  padding: 48px 40px;
  border-radius: var(--radius-md);
  margin-bottom: 40px;
  position: relative;
  overflow: hidden;
}

/* ----- Faction banner (logo as header) -----
   The banner is a dark panel that spans the full width of the card; the logo
   PNG (which has its own transparent background + baked-in wordart) sits
   centred inside at a large, header-worthy size. */
.faction__banner {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 32px 24px;
  margin: -48px -40px 28px;     /* negative margins let the banner meet the card edges */
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  background: rgba(0, 0, 0, 0.35);
  border-bottom: 1px solid var(--border-subtle);
}

.faction__banner-logo {
  max-width: 100%;
  max-height: 180px;
  height: auto;
  width: auto;
  display: block;
  /* A gentle glow behind the logo to help it read against the dark panel */
  filter: drop-shadow(0 4px 24px rgba(0, 0, 0, 0.6));
}

/* Faction-specific banner tints — subtle coloured wash behind the logo */
.faction__banner--axiom {
  background:
    radial-gradient(ellipse at center, rgba(60, 171, 36, 0.12), transparent 70%),
    rgba(0, 0, 0, 0.35);
}

.faction__banner--tdc {
  background:
    radial-gradient(ellipse at center, rgba(216, 11, 244, 0.14), transparent 70%),
    rgba(0, 0, 0, 0.35);
}

.faction__body {
  font-size: 1rem;
  line-height: 1.8;
  max-width: 75ch;
}

/* ----- Axiom faction styling ----- */
.faction--axiom {
  background: var(--bg-panel-dark);
  border-left: 4px solid var(--axiom-green);
}

.faction--axiom .faction__title {
  font-family: var(--font-axiom-title);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--axiom-green);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0;
}

.faction--axiom .faction__subheader {
  font-family: var(--font-axiom-title);
  color: var(--axiom-green);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  /* Sized to optically match the TDC subheader. Oswald is more compact than
     Edo SZ so we go slightly smaller on the top end. */
  font-size: clamp(1.1rem, 1.8vw, 1.5rem);
  font-weight: 600;
  margin: 0 0 16px;
}

.faction--axiom .faction__body {
  font-family: var(--font-axiom-body);
  color: var(--axiom-offwhite);
}

/* ----- TDC faction styling ----- */
.faction--tdc {
  background:
    linear-gradient(180deg, rgba(20, 5, 22, 0.85), rgba(10, 10, 12, 0.95)),
    var(--bg-panel-dark);
  border-left: 4px solid var(--tdc-pink);
  box-shadow: inset 0 0 60px rgba(216, 11, 244, 0.06);
}

.faction--tdc .faction__title {
  font-family: var(--font-tdc-title);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--tdc-pink);
  letter-spacing: 0.05em;
  text-shadow: 0 0 30px var(--tdc-pink-glow);
  margin: 0;
}

.faction--tdc .faction__subheader {
  font-family: var(--font-tdc-sub);
  color: var(--tdc-pink);
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  margin: 0 0 16px;
  letter-spacing: 0.04em;
}

.faction--tdc .faction__body {
  font-family: var(--font-tdc-body);
  color: var(--text-primary);
  font-weight: 300;
}


/* ==========================================================================
   9. MEDIA GALLERY
   --------------------------------------------------------------------------
   DOM is the single source of truth. Adding an <img> to a category div is
   enough — JS reads the structure and powers selection + zipping.
   ========================================================================== */
.gallery__intro {
  color: var(--text-secondary);
  margin-bottom: 24px;
  max-width: 72ch;
}

.gallery__intro code {
  background: var(--bg-tertiary);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 0.9em;
}

/* ----- Global "Download All Assets" bar -----
   This is the primary CTA for press; it's visually prominent and sits
   between the intro copy and the first category. */
.download-all-bar {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  padding: 20px 24px;
  margin-bottom: 48px;
  background: linear-gradient(135deg, rgba(60, 171, 36, 0.08), rgba(216, 11, 244, 0.08));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.btn-download-all {
  padding: 14px 28px;
  font-family: var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--axiom-green), var(--axiom-green-dim));
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease;
  white-space: nowrap;
}

.btn-download-all:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(60, 171, 36, 0.4);
}

.btn-download-all:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.download-all-note {
  color: var(--text-secondary);
  font-size: 13px;
  font-style: italic;
}

/* A top-level category (TDC / Axiom / General) */
.media-category {
  margin-bottom: 56px;
}

.media-category__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.media-category__title {
  margin: 0;
  font-family: var(--font-hero);
  font-size: 1.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* The category-level "select all" label */
.category-select-all-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-family: var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 11px;
  color: var(--text-secondary);
  transition: color 0.2s ease;
  user-select: none;
}

.category-select-all-label:hover { color: var(--text-primary); }

.category-select-all {
  width: 18px;
  height: 18px;
  cursor: pointer;
  margin: 0;
  accent-color: var(--axiom-green);
}

.media-category[data-faction="tdc"] .category-select-all { accent-color: var(--tdc-pink); }

/* faction-specific colour accents on the big category titles */
.media-category[data-faction="tdc"] .media-category__title {
  color: var(--tdc-pink);
  font-family: var(--font-tdc-title);
}
.media-category[data-faction="axiom"] .media-category__title {
  color: var(--axiom-green);
  font-family: var(--font-axiom-title);
  text-transform: uppercase;
}

/* A nested subcategory (e.g. Logos, Characters) */
.media-subcategory {
  margin-bottom: 32px;
}

.media-subcategory__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  padding: 12px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}

.media-subcategory__title {
  font-family: var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 14px;
  margin: 0;
  color: var(--text-primary);
}

/* The right-hand controls on each subcategory header */
.subcategory-controls {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-ui);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.subcategory-controls label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--text-secondary);
}

.subcategory-controls input[type="checkbox"] { cursor: pointer; }

.btn-download {
  padding: 8px 14px;
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 11px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}
.btn-download:hover:not(:disabled) {
  background: var(--text-primary);
  color: var(--bg-primary);
}
.btn-download:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ----- The grid — fixed-height rows, preserved aspect ratios ----- */
.media-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* Each item grows/shrinks horizontally but has a fixed row height */
.media-item {
  position: relative;
  height: 220px;           /* FIXED ROW HEIGHT — tweak here */
  background: #000;        /* match image bg so transparent PNGs blend seamlessly */
  border: 1px solid transparent; /* reserved for selection highlight; invisible by default */
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.2s ease;
  flex: 0 0 auto;
}

/* Light-theme artwork (e.g. dark-cube / black-text logo variants) needs a
   light tile background to read correctly. The source image stays unchanged
   with its transparent background; only the tile swaps. */
.media-item[data-bg="light"] {
  background: #f4f4f6;
}

.media-item:hover {
  transform: translateY(-2px);
  border-color: var(--text-secondary);
}

.media-item img {
  height: 100%;
  width: auto;
  display: block;
  object-fit: contain;
  /* No background — tiles are already #000, and images have real alpha channels
     so transparent logos blend naturally into the tile. */
}

/* Selection state: highlight border when checkbox is ticked */
.media-item.is-selected {
  border-color: var(--axiom-green);
  box-shadow: 0 0 0 2px var(--axiom-green);
}

.media-category[data-faction="tdc"] .media-item.is-selected {
  border-color: var(--tdc-pink);
  box-shadow: 0 0 0 2px var(--tdc-pink);
}

/* Checkbox overlay on each thumbnail */
.media-item__check {
  position: absolute;
  top: 8px;
  left: 8px;
  width: 22px;
  height: 22px;
  margin: 0;
  cursor: pointer;
  z-index: 2;
  accent-color: var(--axiom-green);
}

.media-category[data-faction="tdc"] .media-item__check {
  accent-color: var(--tdc-pink);
}

/* Click-to-zoom hint — just a caption shown on hover */
.media-item__filename {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 6px 10px;
  background: linear-gradient(transparent, rgba(0,0,0,0.85));
  color: #fff;
  font-family: var(--font-ui);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.media-item:hover .media-item__filename { opacity: 1; }


/* ==========================================================================
   10. STUDIO SHOWCASE
   --------------------------------------------------------------------------
   A single prominent tile for the studio's primary logo. Scales up so the
   logo becomes a proper anchor for the Studio section rather than a small
   gallery-sized thumbnail.
   ========================================================================== */
.studio-showcase {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 64px 32px;
  background: #000;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.studio-showcase__logo {
  width: 100%;
  max-width: 640px;  /* keeps it bold but not oversized on ultra-wide screens */
  height: auto;
  display: block;
}


/* ==========================================================================
   11. ABOUT SECTION
   ========================================================================== */
.team {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.team__member {
  padding: 24px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}

.team__role {
  font-family: var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 11px;
  color: var(--text-secondary);
  margin: 0 0 4px;
}

.team__name {
  font-family: var(--font-hero);
  font-size: 1.25rem;
  margin: 0;
}


/* ==========================================================================
   12. FOOTER / DISCLAIMER
   ========================================================================== */
.disclaimer {
  padding: 28px 32px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-left: 4px solid var(--axiom-green);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 14px;
  font-style: italic;
  max-width: 72ch;
}


/* ==========================================================================
   13. RESPONSIVE BREAKPOINTS
   --------------------------------------------------------------------------
   Below 960px, the sidebar stops being sticky and sits above the content.
   ========================================================================== */
@media (max-width: 960px) {
  .press-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .sidebar {
    position: static;
    max-height: none;
  }
  .faction { padding: 32px 24px; }
  .faction__banner { margin: -32px -24px 24px; padding: 24px 16px; }
  .faction__banner-logo { max-height: 130px; }
  .media-item { height: 180px; }
}

@media (max-width: 560px) {
  .page-wrap { padding: 0 16px; }
  .media-item { height: 140px; }
  .subcategory-controls { font-size: 10px; gap: 10px; }
}

/* ==========================================================================
   UTILS
   ========================================================================== */
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* Toast for download feedback */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 14px 20px;
  background: var(--bg-tertiary);
  border: 1px solid var(--axiom-green);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 13px;
  z-index: 1000;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  pointer-events: none;
}
.toast.is-visible { opacity: 1; transform: translateY(0); }


/* ==========================================================================
   14. STICKY SELECTION CART
   --------------------------------------------------------------------------
   Floating panel that follows the user as they scroll, showing how many
   images are currently selected site-wide and offering a one-click
   download of the whole selection. Hidden until the first tile is ticked.
   ========================================================================== */
.selection-cart {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 900;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--axiom-green);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5),
              0 0 20px rgba(60, 171, 36, 0.25);
  opacity: 0;
  transform: translateY(-10px);
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  font-family: var(--font-ui);
}

.selection-cart.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.cart__info {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding-right: 12px;
  border-right: 1px solid var(--border-subtle);
}

.cart__count {
  font-size: 22px;
  font-weight: 700;
  color: var(--axiom-green);
  font-family: var(--font-hero);
  min-width: 22px;
  text-align: right;
}

.cart__label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-secondary);
}

.cart__actions {
  display: flex;
  gap: 8px;
}

.cart__clear,
.cart__download {
  padding: 8px 14px;
  font-family: var(--font-ui);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 11px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
  border: 1px solid var(--border-subtle);
}

.cart__clear {
  background: transparent;
  color: var(--text-secondary);
}
.cart__clear:hover { color: var(--text-primary); border-color: var(--text-secondary); }

.cart__download {
  background: linear-gradient(135deg, var(--axiom-green), var(--axiom-green-dim));
  color: #fff;
  border-color: transparent;
  white-space: nowrap;
}
.cart__download:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(60, 171, 36, 0.4);
}
.cart__download:disabled { opacity: 0.6; cursor: not-allowed; }

/* On small screens, dock the cart to the bottom so it doesn't cover content */
@media (max-width: 720px) {
  .selection-cart {
    top: auto;
    bottom: 16px;
    right: 16px;
    left: 16px;
  }
  .cart__info { flex: 1; }
  .cart__label { font-size: 10px; }
}


/* ==========================================================================
   15. FLOATING TABLE-OF-CONTENTS NAV
   --------------------------------------------------------------------------
   Fixed to the far left edge of the viewport. Default state: just a slim
   vertical tab showing "Menu" + a hamburger icon. Click to slide out the
   panel with grouped section links.
   ========================================================================== */
.toc-nav {
  position: fixed;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  z-index: 800;
  font-family: var(--font-ui);
  /* Layout note: the toggle stays anchored at left: 0 (via .toc-nav itself).
     The panel is absolutely positioned relative to .toc-nav so it can slide
     in from behind the toggle without affecting the toggle's position. */
}

/* --- The always-visible toggle tab --- */
.toc-nav__toggle {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  /* Slim footprint — just wide enough for the hamburger icon, so the tab
     doesn't overlap the page's sidebar. The "Menu" label only appears
     once the user hovers/focuses the tab. */
  padding: 16px 6px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-left: none;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-primary);
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  transition: background 0.2s ease, border-color 0.2s ease, padding 0.2s ease;
  box-shadow: 4px 0 20px rgba(0, 0, 0, 0.4);
}

.toc-nav__toggle:hover,
.toc-nav__toggle:focus-visible {
  background: var(--bg-secondary);
  border-color: var(--text-secondary);
  padding: 18px 10px;  /* expand slightly on hover to hint the label */
}

/* Hamburger icon — pure CSS 3-bar */
.toc-nav__toggle-icon {
  display: inline-flex;
  flex-direction: column;
  gap: 3px;
  width: 16px;
}
.toc-nav__toggle-icon span {
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* Rotate hamburger into an × when the nav is open */
.toc-nav.is-open .toc-nav__toggle-icon span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}
.toc-nav.is-open .toc-nav__toggle-icon span:nth-child(2) {
  opacity: 0;
}
.toc-nav.is-open .toc-nav__toggle-icon span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

/* Vertical "Menu" label — hidden by default, revealed on hover/focus or when open */
.toc-nav__toggle-label {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  color: var(--text-secondary);
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.2s ease, opacity 0.2s ease;
}
.toc-nav__toggle:hover .toc-nav__toggle-label,
.toc-nav__toggle:focus-visible .toc-nav__toggle-label,
.toc-nav.is-open .toc-nav__toggle-label {
  max-height: 60px;
  opacity: 1;
}

/* --- The slide-out panel ---
   Positioned absolutely relative to .toc-nav. When closed it's tucked
   off-screen to the left. When open it slides out to sit flush with
   the toggle's right edge (--toc-toggle-width wide).
   --------------------------------------------------------------------------
   Sizing: the var --toc-toggle-width tracks the toggle's actual rendered
   width. If you change the toggle's padding, update this too. */
.toc-nav {
  --toc-toggle-width: 37px;
}

.toc-nav__panel {
  position: absolute;
  /* Vertically center the panel relative to the toggle, then clamp its
     height so it never extends past the viewport. If it's taller than
     the available space, scroll internally. */
  top: 50%;
  left: 0;
  transform: translateY(-50%) translateX(-100%);
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  width: 260px;
  padding: 24px 22px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-left: none;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  box-shadow: 8px 0 40px rgba(0, 0, 0, 0.6);
  opacity: 0;
  transition: transform 0.28s ease, opacity 0.2s ease;
  pointer-events: none;
  /* Thin scrollbar matching the sidebar's */
  scrollbar-width: thin;
  scrollbar-color: var(--border-subtle) transparent;
}
.toc-nav__panel::-webkit-scrollbar { width: 6px; }
.toc-nav__panel::-webkit-scrollbar-thumb { background: var(--border-subtle); border-radius: 3px; }

.toc-nav.is-open .toc-nav__panel {
  transform: translateY(-50%) translateX(var(--toc-toggle-width));
  opacity: 1;
  pointer-events: auto;
}

/* Hide the [hidden] attribute default so CSS can animate */
.toc-nav__panel[hidden] { display: block; }

.toc-nav__heading {
  margin: 0 0 14px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--text-secondary);
}

.toc-nav__list {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: toc;
}

.toc-nav__list li {
  margin-bottom: 4px;
}

/* Nested list (Factions sub-items, Media categories under Media & Assets) */
.toc-nav__list ol {
  list-style: none;
  padding: 6px 0 4px 14px;
  margin: 4px 0 8px;
  border-left: 1px solid var(--border-subtle);
}

/* Deeper nesting (Media & Assets → Category → Subcategory) — tighten the
   left padding and font so the 3rd level still reads as a list, not a wall. */
.toc-nav__list ol ol {
  padding: 4px 0 4px 12px;
  margin: 2px 0 6px;
}
.toc-nav__list ol ol a {
  font-size: 11px;
  padding: 5px 10px;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}

/* "Subgroup" link — a Category within Media & Assets (TDC / Axiom / General).
   Reads as a group heading because it has its own sub-list below it, but is
   still clickable (jumps to the top of that category's gallery section). */
.toc-nav__subgroup {
  font-weight: 600;
  color: var(--text-primary) !important;
  letter-spacing: 0.1em !important;
  font-size: 12px !important;
}

.toc-nav__group {
  display: block;
  padding: 6px 0;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-secondary);
}

.toc-nav__list a {
  display: block;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background 0.15s ease, color 0.15s ease, padding-left 0.15s ease;
  position: relative;
}

.toc-nav__list a:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  padding-left: 14px;
}

/* Active section (set by IntersectionObserver in gallery.js) */
.toc-nav__list a.is-active {
  color: var(--axiom-green);
  background: rgba(60, 171, 36, 0.08);
  padding-left: 14px;
}
.toc-nav__list a.is-active::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 16px;
  background: var(--axiom-green);
  border-radius: 2px;
}

/* Mobile: dock the toggle inline, move the panel to full-width overlay */
@media (max-width: 720px) {
  .toc-nav {
    top: 16px;
    transform: none;
  }
  .toc-nav__toggle {
    padding: 10px 12px;
    flex-direction: row;
  }
  .toc-nav__toggle-label {
    writing-mode: initial;
    transform: none;
  }
  .toc-nav__panel {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    border-radius: 0;
    padding: 60px 24px 24px;
    overflow-y: auto;
  }
}