/* ============================================================
   INSTALL.CSS — Two-column exhibition layout
   Loaded in addition to style.css on all installation pages.
============================================================ */

/* ============================================================
   FONT OVERRIDE
   These pages load Cormorant Garamond, not Syne.
   Redirect --font-display accordingly.
============================================================ */
body.install-page {
  --font-display: 'Cormorant Garamond', serif;
  overflow: hidden;          /* no body scroll on desktop — panel scrolls internally */
}

/* Restore body scroll on mobile (layout stacks vertically) */
@media (max-width: 768px) {
  body.install-page { overflow-y: auto; }
}

/* ============================================================
   HIDE CHROME THAT THE NEW LAYOUT REPLACES
============================================================ */
.install-page .home-btn    { display: none; }
.install-page .install-nav { display: none; }

/* ============================================================
   ACCENT COLOURS — one per installation
============================================================ */
body.page--connection  { --accent: #6BE8E8; --accent-rgb: 107,232,232; }
body.page--marbles     { --accent: #FFBC42; --accent-rgb: 255,188,66;  }
body.page--fibonacci   { --accent: #A78BFA; --accent-rgb: 167,139,250; }
body.page--fragmented  { --accent: #E83070; --accent-rgb: 232,48,112;  }
body.page--reflections { --accent: #4DD9AC; --accent-rgb: 77,217,172;  }

/* ============================================================
   EXHIBITION LAYOUT — 30 / 70 SPLIT
============================================================ */
.exh-layout {
  display: grid;
  grid-template-columns: 30% 70%;
  height: 100vh;
  overflow: hidden;
  background: var(--dark);
}

/* ============================================================
   LEFT PANEL
============================================================ */
.exh-panel {
  position: relative;
  height: 100vh;
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  border-right: 1px solid rgba(245,245,240,0.05);
  scrollbar-width: none;
}
.exh-panel::-webkit-scrollbar { display: none; }

.exh-panel__inner {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 4.5rem 2.5rem 3rem;
  min-height: 100%;
}

/* Back link */
.exh-panel__back {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-body);
  font-size: 0.58rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(245,245,240,0.25);
  text-decoration: none;
  margin-bottom: 3rem;
  transition: color var(--t-fast);
  cursor: none;
}
.exh-panel__back:hover { color: rgba(245,245,240,0.7); }

/* Number tag */
.exh-panel__num {
  display: block;
  font-family: var(--font-body);
  font-size: 0.58rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--accent, var(--yellow));
  margin-bottom: 0.75rem;
}

/* Title */
.exh-panel__title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 2.4vw, 3rem);
  font-weight: 400;
  color: var(--white);
  line-height: 1.0;
  letter-spacing: 0.01em;
  text-transform: lowercase;
  margin-bottom: 0.8rem;
}

/* Subtitle */
.exh-panel__subtitle {
  font-family: var(--font-body);
  font-size: 0.72rem;
  line-height: 1.65;
  color: rgba(245,245,240,0.35);
  letter-spacing: 0.04em;
  font-style: italic;
}

/* Divider */
.exh-divider {
  width: 100%;
  height: 1px;
  background: rgba(245,245,240,0.06);
  margin: 2rem 0;
  flex-shrink: 0;
}

/* ============================================================
   TECHNICAL SPECS
============================================================ */
.exh-specs {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.7rem 1.4rem;
  margin: 0;
}

.exh-specs dt {
  font-family: var(--font-body);
  font-size: 0.55rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(245,245,240,0.25);
  padding-top: 0.1em;
  white-space: nowrap;
}

.exh-specs dd {
  font-family: var(--font-body);
  font-size: 0.72rem;
  color: rgba(245,245,240,0.58);
  line-height: 1.5;
  margin: 0;
}

/* ============================================================
   ACTION BUTTONS
============================================================ */
.exh-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: auto;
  padding-top: 2.5rem;
}

.exh-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.9rem 1.2rem;
  font-family: var(--font-body);
  font-size: 0.58rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: rgba(245,245,240,0.6);
  background: transparent;
  border: 1px solid rgba(245,245,240,0.1);
  cursor: none;
  text-align: left;
  text-decoration: none;
  transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast);
}

.exh-btn__arrow {
  opacity: 0;
  transform: translateX(-5px);
  transition: opacity var(--t-fast), transform var(--t-fast);
  font-size: 0.8rem;
  flex-shrink: 0;
}

.exh-btn:hover {
  background: rgba(var(--accent-rgb, 255,188,66), 0.06);
  border-color: rgba(var(--accent-rgb, 255,188,66), 0.5);
  color: var(--white);
}

.exh-btn:hover .exh-btn__arrow {
  opacity: 0.7;
  transform: translateX(0);
}

/* Next button — more prominent */
.exh-btn--next {
  background: rgba(245,245,240,0.03);
  border-color: rgba(245,245,240,0.14);
  margin-top: 0.25rem;
}

.exh-btn--next:hover {
  background: var(--accent, var(--yellow));
  border-color: var(--accent, var(--yellow));
  color: #000;
}

.exh-btn--next:hover .exh-btn__arrow {
  opacity: 1;
}

/* ============================================================
   RIGHT GALLERY
============================================================ */
.exh-gallery {
  position: relative;
  height: 100vh;
  overflow: hidden;
}

/* Carousel fills the full right column */
.exh-gallery .carousel {
  height: 100%;
  background: #000;
}

.exh-gallery .carousel__track {
  height: 100%;
}

.exh-gallery .carousel__slide {
  height: 100vh;
  min-height: 0;
}

/* Zoom-on-hover */
.exh-gallery .carousel__slide img {
  transition: transform 1.2s var(--ease-out), opacity 0.4s ease;
}

.exh-gallery .carousel__slide:hover img {
  transform: scale(1.04);
}

/* Image counter — top right of gallery */
.carousel__counter {
  position: absolute;
  top: 1.6rem;
  right: 1.6rem;
  font-family: var(--font-body);
  font-size: 0.56rem;
  letter-spacing: 0.26em;
  color: rgba(245,245,240,0.35);
  z-index: 10;
  pointer-events: none;
}

/* Align dots to the left inside the gallery */
.exh-gallery .carousel__dots {
  bottom: 2rem;
  left: 2rem;
  right: auto;
  transform: none;
  justify-content: flex-start;
}

/* Pull nav arrows in a bit */
.exh-gallery .carousel__btn--prev { left: 2rem; }
.exh-gallery .carousel__btn--next { right: 2rem; }

/* ============================================================
   MODALS — SHARED BASE
============================================================ */
.exh-modal {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.45s var(--ease-out);
}

.exh-modal.is-open {
  opacity: 1;
  pointer-events: all;
}

.exh-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.exh-modal__panel {
  position: relative;
  z-index: 1;
  width: min(720px, 90vw);
  max-height: 84vh;
  overflow-y: auto;
  background: var(--mid);
  border: 1px solid rgba(245,245,240,0.07);
  padding: 4.5rem 5rem 5rem;
  transform: translateY(20px);
  transition: transform 0.45s var(--ease-out);
  scrollbar-width: thin;
  scrollbar-color: rgba(245,245,240,0.12) transparent;
}

.exh-modal.is-open .exh-modal__panel {
  transform: translateY(0);
}

/* Close button */
.exh-modal__close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: rgba(245,245,240,0.3);
  font-size: 0.95rem;
  cursor: none;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0;
  transition: color var(--t-fast);
  border: 1px solid rgba(245,245,240,0.08);
}
.exh-modal__close:hover { color: var(--white); border-color: rgba(245,245,240,0.25); }

/* Info modal typography */
.exh-modal__num {
  display: block;
  font-family: var(--font-body);
  font-size: 0.56rem;
  letter-spacing: 0.30em;
  text-transform: uppercase;
  color: var(--accent, var(--yellow));
  margin-bottom: 1.2rem;
}

.exh-modal__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 400;
  color: var(--white);
  line-height: 1.0;
  letter-spacing: 0.01em;
  text-transform: lowercase;
  margin-bottom: 2.5rem;
}

.exh-modal__body {
  font-family: var(--font-body);
  font-size: 0.88rem;
  line-height: 1.95;
  color: rgba(245,245,240,0.55);
}

.exh-modal__body p + p {
  margin-top: 1.3em;
}

/* ============================================================
   VIDEO MODAL VARIANT
============================================================ */
.exh-modal--video .exh-modal__panel {
  width: min(1000px, 94vw);
  max-height: 90vh;
  overflow: hidden;
  padding: 0;
  background: #000;
  border-color: rgba(245,245,240,0.06);
  aspect-ratio: 16 / 9;
  display: flex;
}

/* Wrapper that holds the iframe / placeholder — must fill the panel
   so the iframe's height:100% has a real reference to resolve against. */
.exh-modal__video-wrap {
  flex: 1;
  width: 100%;
  height: 100%;
  min-height: 0;
}

.exh-modal--video iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

/* Placeholder — shown when no video is configured */
.exh-modal__video-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.4rem;
  color: rgba(245,245,240,0.22);
  background: #0a0a0a;
}

.exh-modal__video-placeholder svg { flex-shrink: 0; }

.exh-modal__video-placeholder span {
  font-family: var(--font-body);
  font-size: 0.6rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

/* ============================================================
   RESPONSIVE — TABLET (1024 and below)
============================================================ */
@media (max-width: 1024px) {
  .exh-layout { grid-template-columns: 36% 64%; }

  .exh-panel__inner { padding: 4.5rem 2rem 2.5rem; }

  .exh-panel__title { font-size: clamp(1.7rem, 3vw, 2.6rem); }

  .exh-modal__panel { padding: 3.5rem 3.5rem 4rem; }
}

/* ============================================================
   RESPONSIVE — MOBILE (768 and below)
============================================================ */
@media (max-width: 768px) {
  .exh-layout {
    grid-template-columns: 1fr;
    height: auto;
    overflow: visible;
  }

  .exh-panel {
    height: auto;
    overflow: visible;
    border-right: none;
    border-bottom: 1px solid rgba(245,245,240,0.06);
  }

  .exh-panel__inner {
    padding: 6rem 5vw 3.5rem;
    min-height: auto;
  }

  .exh-actions {
    flex-direction: row;
    flex-wrap: wrap;
    padding-top: 1.5rem;
  }

  .exh-btn                     { flex: 1 1 calc(50% - 0.25rem); }
  .exh-btn--next               { flex-basis: 100%; margin-top: 0; }

  .exh-gallery {
    height: 72vw;
    min-height: 320px;
  }

  .exh-gallery .carousel__slide {
    height: 72vw;
    min-height: 320px;
  }

  .exh-modal__panel {
    padding: 3rem 2.5rem 3.5rem;
  }
}

/* ============================================================
   RESPONSIVE — SMALL MOBILE (540 and below)
============================================================ */
@media (max-width: 540px) {
  .exh-panel__inner { padding: 5.5rem 5vw 3rem; }

  .exh-panel__title { font-size: clamp(2rem, 9vw, 3rem); }

  .exh-actions { flex-direction: column; }
  .exh-btn     { flex: none; width: 100%; }

  .exh-gallery          { height: 85vw; min-height: 280px; }
  .exh-gallery .carousel__slide { height: 85vw; min-height: 280px; }

  .exh-modal__panel     { padding: 2.5rem 1.75rem 3rem; }
  .exh-modal__title     { font-size: clamp(1.8rem, 7vw, 2.4rem); }

  .exh-modal--video .exh-modal__panel {
    width: 98vw;
    aspect-ratio: auto;
    height: 56vw;
  }
}