/* ==========================================================================
   Saudi Accelerate — Projects Gallery System
   Sections grid → Project cards → Single project slider (image + video)
   Mobile-first, uses the theme's existing CSS variables (style.css:root)
   ========================================================================== */

/* ---------- Sections grid (landing) ---------- */
.sai-sections-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
  padding:8px 0 32px;
}
@media (min-width:640px){
  .sai-sections-grid{ grid-template-columns:repeat(2,1fr); gap:20px; }
}
@media (min-width:1024px){
  .sai-sections-grid{ grid-template-columns:repeat(3,1fr); gap:24px; }
}

.sai-section-card{
  position:relative;
  display:block;
  border-radius:16px;
  overflow:hidden;
  background:var(--sai-surface);
  border:1px solid var(--sai-border);
  transition:transform .35s ease, box-shadow .35s ease;
  text-decoration:none;
}
.sai-section-card:hover{
  transform:translateY(-6px);
  box-shadow:0 20px 40px -12px rgba(0,0,0,.5);
}
.sai-section-card-media{
  position:relative;
  aspect-ratio:4/5;
  overflow:hidden;
  background:#000;
}
.sai-section-card-media img{
  width:100%; height:100%; object-fit:cover; display:block;
  transition:transform .6s ease;
}
.sai-section-card:hover .sai-section-card-media img{ transform:scale(1.08); }
.sai-section-card-noimg{ width:100%; height:100%; background:var(--sai-surface); }
.sai-section-card-overlay{
  position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(0,0,0,0) 40%, rgba(0,0,0,.75) 100%);
}
.sai-section-card-body{
  position:absolute; right:0; bottom:0; left:0;
  padding:18px;
}
.sai-section-card-title{
  margin:0 0 4px;
  color:#fff;
  font-family:'Cairo',sans-serif;
  font-weight:700;
  font-size:20px;
}
.sai-section-card-count{
  color:rgba(255,255,255,.8);
  font-size:13px;
}

/* ---------- Project cards (inside a section) ---------- */
.sai-projects-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:12px;
  padding:8px 0 40px;
}
@media (min-width:640px){
  .sai-projects-grid{ grid-template-columns:repeat(3,1fr); gap:18px; }
}
@media (min-width:1024px){
  .sai-projects-grid{ grid-template-columns:repeat(4,1fr); gap:22px; }
}

.sai-project-card{
  display:block;
  border-radius:14px;
  overflow:hidden;
  background:var(--sai-surface);
  border:1px solid var(--sai-border);
  text-decoration:none;
  transition:transform .3s ease, box-shadow .3s ease;
}
.sai-project-card:hover{
  transform:translateY(-4px);
  box-shadow:0 14px 28px -10px rgba(0,0,0,.45);
}
.sai-project-card-media{
  aspect-ratio:1/1;
  overflow:hidden;
  background:#000;
}
.sai-project-card-media img{
  width:100%; height:100%; object-fit:cover; display:block;
  transition:transform .5s ease;
}
.sai-project-card:hover .sai-project-card-media img{ transform:scale(1.06); }
.sai-project-card-body{ padding:12px 14px 16px; }
.sai-project-card-title{
  margin:0 0 4px;
  color:var(--sai-text);
  font-family:'Cairo',sans-serif;
  font-weight:700;
  font-size:15px;
}
.sai-project-card-desc{
  margin:0;
  color:var(--sai-muted);
  font-size:12.5px;
  line-height:1.6;
}
.sai-empty-section{ color:var(--sai-muted); padding:40px 0; text-align:center; }

/* ---------- Section archive header ---------- */
.sai-section-archive-header{
  padding:28px 0 10px;
  border-bottom:1px solid var(--sai-border);
  margin-bottom:8px;
}
.sai-section-archive-title{
  font-family:'Cairo',sans-serif;
  font-weight:900;
  font-size:clamp(26px,5vw,40px);
  color:var(--sai-text);
  margin:8px 0 6px;
}
.sai-section-archive-desc{ color:var(--sai-muted); max-width:640px; }

/* ---------- Single-project gallery (mixed image + video slider) ---------- */
.sai-pg{
  position:relative;
  width:100%;
  aspect-ratio:4/5;
  max-height:88vh;
  border-radius:18px;
  overflow:hidden;
  background:#000;
  touch-action:pan-y;
  user-select:none;
  box-shadow:0 30px 60px -20px rgba(0,0,0,.55);
}
@media (min-width:1024px){
  .sai-pg{ aspect-ratio:16/9; max-height:78vh; }
}

.sai-pg-track{
  display:flex;
  height:100%;
  transition:transform .45s cubic-bezier(.22,.61,.36,1);
  will-change:transform;
}
.sai-pg-slide{
  position:relative;
  flex:0 0 100%;
  width:100%;
  height:100%;
  display:flex;
  align-items:center;
  justify-content:center;
  background:#000;
}
.sai-pg-slide:not(.sai-pg-slide-video){ cursor:zoom-in; }
.sai-pg-slide img,
.sai-pg-slide video{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
  transition:transform .5s ease;
}
.sai-pg-slide:not(.sai-pg-slide-video):hover img{ transform:scale(1.03); }
.sai-pg-slide-video video{ object-fit:contain; background:#000; }

/* Small magnifier hint, top-left of each photo slide, fades in on hover */
.sai-pg-zoom-hint{
  position:absolute;
  top:14px; left:14px;
  width:34px; height:34px;
  border-radius:50%;
  background:rgba(0,0,0,.5);
  border:1px solid rgba(255,255,255,.25);
  opacity:0;
  transition:opacity .25s ease;
  pointer-events:none;
  z-index:4;
}
.sai-pg-zoom-hint::before{
  content:'';
  position:absolute; inset:0; margin:auto;
  width:14px; height:14px;
  border:2px solid #fff;
  border-radius:50%;
}
.sai-pg-zoom-hint::after{
  content:'';
  position:absolute;
  width:2px; height:8px;
  background:#fff;
  top:19px; left:21px;
  transform:rotate(45deg);
}
.sai-pg-slide:hover .sai-pg-zoom-hint{ opacity:1; }

.sai-pg-arrow{
  position:absolute;
  top:50%;
  transform:translateY(-50%);
  width:40px; height:40px;
  border-radius:50%;
  border:0;
  background:rgba(0,0,0,.45);
  color:#fff;
  font-size:22px;
  line-height:1;
  cursor:pointer;
  display:flex; align-items:center; justify-content:center;
  z-index:5;
  transition:background .2s ease, transform .2s ease;
}
.sai-pg-arrow:hover{ background:var(--sai-gold); transform:translateY(-50%) scale(1.08); }
.sai-pg-prev{ right:12px; }
.sai-pg-next{ left:12px; }
@media (max-width:640px){
  .sai-pg-arrow{ width:34px; height:34px; font-size:18px; }
}

.sai-pg-counter{
  position:absolute;
  top:12px;
  left:12px;
  background:rgba(0,0,0,.5);
  color:#fff;
  font-size:12px;
  padding:4px 10px;
  border-radius:20px;
  z-index:5;
}

.sai-pg-dots{
  position:absolute;
  bottom:12px;
  right:50%;
  transform:translateX(50%);
  display:flex;
  gap:6px;
  z-index:5;
  max-width:90%;
  overflow-x:auto;
  scrollbar-width:none;
}
.sai-pg-dots::-webkit-scrollbar{ display:none; }
.sai-pg-dot{
  width:8px; height:8px;
  border-radius:50%;
  border:0;
  background:rgba(255,255,255,.4);
  cursor:pointer;
  flex:0 0 auto;
  transition:background .2s ease, transform .2s ease;
}
.sai-pg-dot.is-active{
  background:var(--sai-gold);
  transform:scale(1.25);
}

/* ---------- Full-screen, high-resolution lightbox (up to 1600x1600) ---------- */
html.sai-pg-lb-locked{ overflow:hidden; }

.sai-pg-lightbox{
  position:fixed;
  inset:0;
  z-index:99999;
  display:none;
  align-items:center;
  justify-content:center;
}
.sai-pg-lightbox.is-open{
  display:flex;
  animation:sai-pg-lb-fade .3s ease;
}
@keyframes sai-pg-lb-fade{ from{ opacity:0; } to{ opacity:1; } }

.sai-pg-lb-backdrop{
  position:absolute;
  inset:0;
  background:rgba(6,10,10,.94);
  backdrop-filter:blur(6px);
}

.sai-pg-lb-stage{
  position:relative;
  z-index:1;
  width:100%;
  height:100%;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:56px 24px;
}

.sai-pg-lb-image{
  max-width:min(1600px,92vw);
  max-height:min(1600px,88vh);
  width:auto;
  height:auto;
  object-fit:contain;
  border-radius:10px;
  box-shadow:0 40px 90px -20px rgba(0,0,0,.75);
  cursor:zoom-in;
  opacity:1;
  transition:opacity .25s ease, transform .35s cubic-bezier(.22,.61,.36,1);
}
.sai-pg-lb-image.is-loading{ opacity:0; }
.sai-pg-lb-image.is-zoomed{
  max-width:none;
  max-height:none;
  width:min(1600px,98vw);
  cursor:zoom-out;
}

.sai-pg-lb-close,
.sai-pg-lb-arrow{
  position:absolute;
  z-index:2;
  width:48px; height:48px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.2);
  background:rgba(20,30,30,.6);
  color:#fff;
  font-size:24px;
  line-height:1;
  display:flex; align-items:center; justify-content:center;
  cursor:pointer;
  transition:background .2s ease, transform .2s ease;
}
.sai-pg-lb-close:hover,
.sai-pg-lb-arrow:hover{ background:var(--sai-gold); color:#0F0F0F; transform:scale(1.08); }
.sai-pg-lb-close{ top:24px; left:24px; }
.sai-pg-lb-prev{ top:50%; left:24px; transform:translateY(-50%); }
.sai-pg-lb-next{ top:50%; right:24px; transform:translateY(-50%); }
.sai-pg-lb-prev:hover, .sai-pg-lb-next:hover{ transform:translateY(-50%) scale(1.08); }

.sai-pg-lb-counter{
  position:absolute;
  bottom:24px;
  right:50%;
  transform:translateX(50%);
  background:rgba(20,30,30,.7);
  border:1px solid rgba(255,255,255,.15);
  color:#fff;
  font-size:13px;
  padding:6px 16px;
  border-radius:20px;
  z-index:2;
}

@media (max-width:640px){
  .sai-pg-lb-close{ top:14px; left:14px; width:42px; height:42px; font-size:20px; }
  .sai-pg-lb-prev{ left:10px; width:42px; height:42px; font-size:20px; }
  .sai-pg-lb-next{ right:10px; width:42px; height:42px; font-size:20px; }
  .sai-pg-lb-stage{ padding:40px 12px; }
}