/* ============================================================
   ASMU — ACHIEVEMENTS GALLERY
   Chaptered bento grid + cinematic lightbox.
   Rendered by assets/js/gallery.js into #galleryRoot.
   Uses the site's design tokens only, so dark / light themes just work.
   Animated properties: transform / opacity / clip-path only.
   ============================================================ */
.gal-section{overflow:hidden;}
.gal-section::before{ /* soft ambient glow behind the grid */
  content:"";position:absolute;left:50%;top:18%;width:min(980px,92vw);height:520px;transform:translateX(-50%);
  background:radial-gradient(closest-side,var(--accent-soft),transparent 72%);pointer-events:none;opacity:.8;
}
.gal-section .wrap{position:relative;z-index:1;}

.gal-meta{display:flex;flex-wrap:wrap;gap:10px;margin:-24px 0 clamp(30px,4vw,48px);}
.gal-pill{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:100px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted);
  border:1px solid var(--border);background:color-mix(in srgb,var(--surface) 70%,transparent);
}
.gal-pill b{color:var(--accent);font-weight:600;letter-spacing:.04em;}

/* ---------- chapter header ---------- */
.gal-chapter + .gal-chapter{margin-top:clamp(56px,7vw,100px);}
.gal-chead{display:flex;align-items:flex-end;gap:clamp(14px,2.4vw,28px);margin-bottom:clamp(18px,2.4vw,28px);}
.gal-num{
  font-family:var(--font-display);font-weight:700;line-height:.8;letter-spacing:-.04em;
  font-size:clamp(54px,8vw,96px);color:transparent;-webkit-text-stroke:1px color-mix(in srgb,var(--accent) 55%,transparent);
  user-select:none;
}
.gal-ctext{padding-bottom:4px;min-width:0;}
.gal-ctag{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);}
.gal-ctitle{font-family:var(--font-display);font-weight:600;letter-spacing:-.015em;line-height:1.15;font-size:clamp(22px,3vw,32px);margin-top:6px;}
.gal-cdesc{color:var(--text-muted);font-size:14.5px;line-height:1.65;margin-top:8px;max-width:58ch;}
.gal-ccount{margin-left:auto;padding-bottom:6px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;color:var(--text-faint);white-space:nowrap;}

/* ---------- bento grid ---------- */
.gal-grid{
  --gh:clamp(64px,8.9vw,128px);
  display:grid;grid-template-columns:repeat(12,minmax(0,1fr));grid-auto-rows:var(--gh);
  gap:clamp(10px,1.4vw,18px);
}
.gal-tile,.gal-card{grid-column:span var(--c,6);grid-row:span var(--r,3);min-width:0;}

/* ---------- photo tile ---------- */
.gal-tile{
  position:relative;display:block;padding:0;text-align:left;color:#fff;overflow:hidden;isolation:isolate;
  border-radius:clamp(16px,2vw,24px);border:1px solid var(--border-strong);background:var(--surface-2);
  box-shadow:0 24px 60px -34px rgba(0,0,0,.65);
  transform:perspective(1000px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg));
  transition:transform .5s var(--ease),border-color .35s,box-shadow .5s var(--ease),opacity .9s var(--ease),clip-path 1.1s var(--ease);
  -webkit-tap-highlight-color:transparent;
}
.gal-tile.pre{opacity:0;clip-path:inset(10% 8% 10% 8% round 24px);transform:translateY(34px) scale(.965);}
.gal-tile.pre.in{opacity:1;clip-path:inset(0 0 0 0 round 24px);transform:perspective(1000px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg));}
.gal-tile.pre{transition-delay:calc(var(--i,0) * 90ms);}
.gal-tile.in:not(.pre){clip-path:none;} /* once settled, drop the clip so the glow/shadow can breathe */
.gal-tile:hover,.gal-tile:focus-visible{border-color:color-mix(in srgb,var(--accent) 65%,var(--border-strong));
  box-shadow:0 34px 80px -30px rgba(0,0,0,.75),0 0 0 1px color-mix(in srgb,var(--accent) 30%,transparent);}
.gal-tile:focus-visible{outline:2px solid var(--accent);outline-offset:4px;}

.gal-img{
  position:absolute;inset:-4%;width:108%;height:108%;max-width:none;object-fit:cover;object-position:var(--pos,50% 40%);
  transform:translate3d(var(--px,0px),var(--py,0px),0) scale(1.02);
  transition:transform .9s var(--ease),filter .6s;will-change:transform;
}
.gal-tile:hover .gal-img,.gal-tile:focus-visible .gal-img{transform:translate3d(var(--px,0px),var(--py,0px),0) scale(1.1);}
.gal-tile::before{ /* cinematic gradient so captions stay legible on any photo */
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(to top,rgba(6,8,12,.9) 0%,rgba(6,8,12,.55) 26%,rgba(6,8,12,0) 58%),linear-gradient(to bottom,rgba(6,8,12,.38),rgba(6,8,12,0) 24%);
  transition:opacity .4s;
}
.gal-tile::after{ /* pointer-following light */
  content:"";position:absolute;inset:0;z-index:2;pointer-events:none;opacity:0;mix-blend-mode:soft-light;transition:opacity .4s;
  background:radial-gradient(380px circle at var(--mx,50%) var(--my,40%),rgba(255,255,255,.55),transparent 62%);
}
.gal-tile:hover::after{opacity:1;}

.gal-idx{
  position:absolute;left:clamp(12px,1.6vw,18px);top:clamp(12px,1.6vw,16px);z-index:3;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;padding:6px 11px;border-radius:100px;
  background:rgba(8,10,15,.5);border:1px solid rgba(255,255,255,.18);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.gal-open{
  position:absolute;right:clamp(12px,1.6vw,18px);top:clamp(12px,1.6vw,16px);z-index:3;width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;background:rgba(8,10,15,.5);border:1px solid rgba(255,255,255,.22);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  opacity:0;transform:scale(.7) rotate(-45deg);transition:opacity .35s,transform .5s var(--ease),background .25s,color .25s;
}
.gal-open svg{width:17px;height:17px;}
.gal-tile:hover .gal-open,.gal-tile:focus-visible .gal-open{opacity:1;transform:none;}
.gal-open:hover{background:var(--accent);color:var(--accent-ink);}
@media(hover:none){.gal-open{opacity:.9;transform:none;}}

.gal-cap{position:absolute;left:0;right:0;bottom:0;z-index:3;padding:clamp(14px,2vw,24px);display:flex;flex-direction:column;gap:6px;}
.gal-cap .tag{
  align-self:flex-start;font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent-2);
}
.gal-cap h4{font-family:var(--font-display);font-weight:600;letter-spacing:-.01em;line-height:1.2;font-size:clamp(16px,1.7vw,21px);color:#fff;}
.gal-cap p{
  font-size:13px;line-height:1.55;color:rgba(255,255,255,.78);max-width:52ch;
  max-height:0;opacity:0;overflow:hidden;transform:translateY(8px);
  transition:max-height .55s var(--ease),opacity .45s,transform .55s var(--ease);
}
.gal-tile:hover .gal-cap p,.gal-tile:focus-visible .gal-cap p{max-height:6em;opacity:1;transform:none;}
@media(hover:none){.gal-cap p{max-height:6em;opacity:1;transform:none;}}

/* ---------- prize card ---------- */
.gal-card{
  position:relative;overflow:hidden;isolation:isolate;display:flex;flex-direction:column;justify-content:space-between;gap:16px;
  padding:clamp(20px,2.6vw,34px);border-radius:clamp(16px,2vw,24px);
  border:1px solid color-mix(in srgb,var(--accent-2) 38%,var(--border));
  background:linear-gradient(160deg,color-mix(in srgb,var(--accent-2) 12%,var(--surface)),var(--surface) 62%);
  box-shadow:0 30px 80px -42px rgba(242,184,76,.55);
  transition:opacity .9s var(--ease),transform .9s var(--ease);
}
.gal-card.pre{opacity:0;transform:translateY(34px) scale(.965);transition-delay:calc(var(--i,0) * 90ms);}
.gal-card.pre.in{opacity:1;transform:none;}
.gal-card::before{
  content:"";position:absolute;right:-30%;top:-40%;width:90%;aspect-ratio:1;border-radius:50%;z-index:-1;
  background:radial-gradient(closest-side,rgba(242,184,76,.28),transparent 70%);
}
.gal-card-top{display:flex;align-items:center;gap:10px;font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-2);}
.gal-card-top svg{width:18px;height:18px;}
.gal-big{
  font-family:var(--font-display);font-weight:700;letter-spacing:-.05em;line-height:.85;
  font-size:clamp(64px,9vw,124px);
  background:linear-gradient(135deg,var(--accent-2),color-mix(in srgb,var(--accent-2) 40%,#fff));-webkit-background-clip:text;background-clip:text;color:transparent;
}
.gal-big small{font-size:.36em;letter-spacing:-.01em;margin-left:.08em;}
.gal-card h4{font-family:var(--font-display);font-weight:600;font-size:clamp(17px,1.7vw,21px);line-height:1.25;letter-spacing:-.01em;}
.gal-card p{color:var(--text-muted);font-size:13.5px;line-height:1.65;margin-top:8px;}

/* ============================================================
   LIGHTBOX
   ============================================================ */
.gl{
  position:fixed;inset:0;z-index:4000;display:flex;flex-direction:column;color:#fff;
  visibility:hidden;opacity:0;transition:opacity .35s var(--ease),visibility 0s linear .35s;
  touch-action:pan-y pinch-zoom;
}
.gl.open{visibility:visible;opacity:1;transition-delay:0s;}
.gl-backdrop{position:absolute;inset:0;background:rgba(4,6,10,.97);}
.gl-backdrop::after{content:"";position:absolute;inset:0;background:radial-gradient(ellipse 70% 60% at 50% 45%,color-mix(in srgb,var(--accent) 14%,transparent),transparent 70%);}
.gl-top{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;padding:clamp(12px,2vw,22px) clamp(14px,3vw,32px);}
.gl-count{font-family:var(--font-mono);font-size:13px;letter-spacing:.16em;color:rgba(255,255,255,.7);}
.gl-count b{color:#fff;font-size:17px;font-weight:600;}
.gl-btn{
  width:46px;height:46px;border-radius:50%;display:grid;place-items:center;color:#fff;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);transition:background .25s,transform .35s var(--ease),border-color .25s,color .25s;
}
.gl-btn:hover{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);transform:scale(1.08);}
.gl-btn svg{width:20px;height:20px;}
.gl-body{position:relative;z-index:1;flex:1;min-height:0;display:flex;align-items:center;justify-content:center;padding:0 clamp(10px,7vw,110px);}
.gl-nav{position:absolute;top:50%;z-index:3;margin-top:-23px;}
.gl-nav.prev{left:clamp(8px,2vw,28px);} .gl-nav.next{right:clamp(8px,2vw,28px);}
.gl-fig{margin:0;max-width:100%;max-height:100%;display:flex;flex-direction:column;align-items:center;gap:clamp(10px,1.8vh,18px);min-height:0;}
.gl-imgwrap{position:relative;min-height:0;display:flex;border-radius:14px;overflow:hidden;box-shadow:0 40px 120px -30px rgba(0,0,0,.9),0 0 0 1px rgba(255,255,255,.1);}
.gl-img{display:block;max-width:100%;max-height:calc(100vh - 290px);max-height:calc(100svh - 290px);width:auto;height:auto;object-fit:contain;user-select:none;-webkit-user-drag:none;}
.gl-img.anim{animation:gl-in .65s var(--ease) both;}
.gl-img.loading{opacity:0;}
@keyframes gl-in{from{opacity:0;transform:translateX(calc(var(--dir,0) * 46px)) scale(.97);filter:blur(6px);}to{opacity:1;transform:none;filter:none;}}
.gl-cap{text-align:center;max-width:680px;padding:0 8px;}
.gl-cap .tag{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-2);}
.gl-cap h3{font-family:var(--font-display);font-weight:600;letter-spacing:-.01em;font-size:clamp(18px,2.4vw,26px);line-height:1.2;margin-top:6px;}
.gl-cap p{color:rgba(255,255,255,.7);font-size:14px;line-height:1.6;margin-top:6px;}
.gl-strip{position:relative;z-index:2;display:flex;justify-content:flex-start;gap:10px;padding:clamp(10px,1.6vw,18px) 16px clamp(14px,2.4vw,26px);overflow-x:auto;scrollbar-width:none;}
.gl-strip::-webkit-scrollbar{display:none;}
.gl-th{
  flex:0 0 auto;width:clamp(54px,7vw,84px);aspect-ratio:4/3;border-radius:10px;overflow:hidden;padding:0;opacity:.5;
  border:2px solid transparent;transition:opacity .3s,border-color .3s,transform .4s var(--ease);background:#111;
}
.gl-th img{width:100%;height:100%;object-fit:cover;}
.gl-th:first-child{margin-left:auto;}.gl-th:last-child{margin-right:auto;} /* centred, but never clips when it overflows */
.gl-th:hover{opacity:.9;transform:translateY(-3px);}
.gl-th.on{opacity:1;border-color:var(--accent);}
body.gl-lock .asmu-ai-launcher,body.gl-lock #asmuAiPanel{visibility:hidden;}

/* ---------- responsive ---------- */
@media(max-width:900px){
  .gal-grid{grid-template-columns:repeat(2,minmax(0,1fr));--gh:clamp(84px,17vw,126px);}
  .gal-tile,.gal-card{grid-column:span 2;grid-row:span 3;}
  .gal-tile.half{grid-column:span 1;grid-row:span 2;}
  .gal-tile.lead{grid-row:span 4;}
  .gal-card{grid-row:span 2;}
  .gal-ccount{display:none;}
  .gl-nav{top:auto;bottom:calc(clamp(60px,12vw,90px) + 38px);margin-top:0;}
  .gl-body{padding:0 10px;}
  .gl-img{max-height:calc(100vh - 330px);max-height:calc(100svh - 330px);}
}
@media(max-width:560px){
  .gal-grid{grid-template-columns:minmax(0,1fr);grid-auto-rows:auto;gap:12px;}
  .gal-tile,.gal-tile.half,.gal-tile.lead{grid-column:auto;grid-row:auto;aspect-ratio:4/3;}
  .gal-card{grid-column:auto;grid-row:auto;min-height:230px;}
  .gal-num{font-size:52px;}
  .gal-chead{align-items:flex-start;}
  .gal-meta{margin-top:-30px;}
  .gl-btn{width:42px;height:42px;}
  .gl-cap p{display:none;}
}
@media(max-height:560px) and (orientation:landscape){
  .gl-strip,.gl-cap p{display:none;}
  .gl-img{max-height:calc(100vh - 150px);max-height:calc(100svh - 150px);}
  .gl-nav{top:50%;bottom:auto;margin-top:-23px;}
}
@media(prefers-reduced-motion:reduce){
  .gal-tile,.gal-card,.gal-img,.gal-cap p,.gal-open,.gl,.gl-btn,.gl-th{transition:none !important;}
  .gal-tile.pre,.gal-card.pre{opacity:1;clip-path:none;transform:none;}
  .gl-img.anim{animation:none;}
}