/* =====================================================================
   NOCTURNE — "Digital Exhibition" theme
   Obsidian + living aurora, floating embers, 3D tilt gallery.
   ===================================================================== */
:root{
  --bg:#050709;
  --bg-2:#0a1013;
  --panel:rgba(16,26,29,.62);
  --ink:#eafdfa;
  --muted:#8fb0ad;
  --line:rgba(120,230,215,.12);
  --cyan:#37e8d6;
  --violet:#7c6bff;
  --ember:#ff3b60;
  --radius:16px;
  --shadow:0 30px 70px rgba(0,0,0,.65);
  --maxw:1280px;
  --disp:"Cormorant Garamond",Georgia,serif;
  --ui:"Space Grotesk","Segoe UI",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--ui);line-height:1.55;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;
  -webkit-user-drag:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;pointer-events:none}
.card,.lb{-webkit-user-select:none;user-select:none}
::selection{background:rgba(55,232,214,.3);color:#fff}
/* custom scrollbar */
::-webkit-scrollbar{width:11px}
::-webkit-scrollbar-track{background:#04070a}
::-webkit-scrollbar-thumb{background:linear-gradient(var(--cyan),var(--violet));border-radius:20px;border:3px solid #04070a}

/* ---------- Background stack ---------- */
.site-bg{position:fixed;inset:0;z-index:0;
  background:url("../dark%20art/example(84).png") center 16%/cover no-repeat fixed;}
.site-bg::after{content:"";position:absolute;inset:0;
  background:
    radial-gradient(120% 90% at 50% 30%,transparent 30%,rgba(5,7,9,.35) 100%),
    linear-gradient(180deg,rgba(5,7,9,.22),rgba(5,7,9,.5) 60%,rgba(5,7,9,.86));}

/* drifting aurora blobs */
.aurora{position:fixed;inset:-20%;z-index:0;filter:blur(90px);opacity:.4;pointer-events:none}
.aurora span{position:absolute;border-radius:50%;mix-blend-mode:screen;animation:drift 22s ease-in-out infinite}
.aurora .a1{width:46vw;height:46vw;left:-6vw;top:-8vw;background:radial-gradient(circle,var(--cyan),transparent 60%)}
.aurora .a2{width:40vw;height:40vw;right:-6vw;top:6vw;background:radial-gradient(circle,var(--violet),transparent 60%);animation-delay:-7s}
.aurora .a3{width:44vw;height:44vw;left:30vw;bottom:-14vw;background:radial-gradient(circle,var(--ember),transparent 60%);animation-delay:-13s;opacity:.7}
@keyframes drift{
  0%,100%{transform:translate(0,0) scale(1)}
  33%{transform:translate(6vw,4vw) scale(1.12)}
  66%{transform:translate(-5vw,3vw) scale(.94)}
}
/* ember particle canvas */
#fx{position:fixed;inset:0;z-index:1;pointer-events:none}
/* film grain */
.grain{position:fixed;inset:0;z-index:2;pointer-events:none;opacity:.05;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");}

/* everything above the fx layers */
.hero,.filters,main,.contact,footer,#to-top{position:relative;z-index:3}

/* ---------- Hero ---------- */
.hero{max-width:var(--maxw);margin:0 auto;padding:min(18vh,150px) 26px 40px;text-align:center}
.kicker{display:inline-flex;align-items:center;gap:10px;color:var(--cyan);
  font-size:12px;letter-spacing:5px;text-transform:uppercase;margin-bottom:22px;
  border:1px solid var(--line);padding:8px 16px;border-radius:999px;background:rgba(55,232,214,.05)}
.kicker::before,.kicker::after{content:"";width:26px;height:1px;background:linear-gradient(90deg,transparent,var(--cyan))}
.kicker::after{transform:scaleX(-1)}
.hero h1{margin:0 0 18px;font-family:var(--disp);font-weight:700;
  font-size:clamp(50px,11vw,140px);line-height:.92;letter-spacing:-1px;
  background:linear-gradient(120deg,#fff 0%,var(--cyan) 40%,var(--violet) 70%,var(--ember) 100%);
  background-size:220% 220%;-webkit-background-clip:text;background-clip:text;color:transparent;
  animation:shimmer 9s ease infinite;text-shadow:0 0 80px rgba(55,232,214,.15)}
@keyframes shimmer{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
.hero p{max-width:560px;margin:0 auto 34px;color:var(--muted);font-size:clamp(15px,2vw,19px)}
.stats{display:flex;gap:0;justify-content:center;flex-wrap:wrap;
  border:1px solid var(--line);border-radius:16px;overflow:hidden;max-width:560px;margin:0 auto;
  background:var(--panel);backdrop-filter:blur(8px)}
.stats div{flex:1;min-width:120px;padding:18px 22px;font-size:11px;color:var(--muted);
  letter-spacing:2px;text-transform:uppercase;border-right:1px solid var(--line)}
.stats div:last-child{border-right:none}
.stats b{display:block;font-family:var(--disp);font-size:38px;color:var(--ink);font-weight:700;letter-spacing:0}
.scroll-cue{margin-top:44px;color:var(--muted);font-size:11px;letter-spacing:3px;text-transform:uppercase;
  display:inline-flex;flex-direction:column;align-items:center;gap:8px;animation:bob 2.4s ease-in-out infinite}
.scroll-cue span{width:1px;height:34px;background:linear-gradient(var(--cyan),transparent)}
@keyframes bob{0%,100%{transform:translateY(0);opacity:.7}50%{transform:translateY(8px);opacity:1}}

/* ---------- Filters ---------- */
.filters{position:sticky;top:0;z-index:40;max-width:var(--maxw);margin:36px auto 0;
  padding:12px 26px;display:flex;gap:8px;flex-wrap:wrap;justify-content:center;
  background:linear-gradient(180deg,rgba(5,7,9,.55),rgba(5,7,9,0));
  backdrop-filter:blur(12px);
  -webkit-mask-image:linear-gradient(180deg,#000 86%,transparent);
          mask-image:linear-gradient(180deg,#000 86%,transparent)}
.chip{padding:8px 16px;border-radius:999px;font-size:12.5px;cursor:pointer;font-family:var(--ui);
  color:var(--muted);background:rgba(255,255,255,.03);border:1px solid var(--line);
  transition:.18s;white-space:nowrap;letter-spacing:.3px}
.chip:hover{color:var(--ink);transform:translateY(-2px);border-color:rgba(55,232,214,.4)}
.chip.active{color:#02100e;font-weight:600;border-color:transparent;
  background:linear-gradient(120deg,var(--cyan),var(--violet));box-shadow:0 0 20px rgba(55,232,214,.4)}
.chip.viewing:not(.active){color:var(--ink);border-color:rgba(55,232,214,.5);background:rgba(55,232,214,.08)}

/* ---------- Sections ---------- */
main{max-width:var(--maxw);margin:0 auto;padding:10px 26px 60px}
.section{padding-top:70px;scroll-margin-top:150px}
.section-head{position:relative;margin-bottom:26px}
.section-head .idx{font-family:var(--disp);font-size:clamp(70px,13vw,150px);line-height:.8;font-weight:700;
  color:transparent;-webkit-text-stroke:1px rgba(120,230,215,.16);letter-spacing:-4px;pointer-events:none;
  user-select:none}
.section-head .meta{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap;margin-top:-24px}
.section-head h2{margin:0;font-family:var(--disp);font-size:clamp(30px,4vw,46px);font-weight:700;letter-spacing:.5px;
  background:linear-gradient(120deg,#eafffb,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.section-head .blurb{color:var(--muted);font-size:14px}
.section-head .n{margin-left:auto;color:var(--cyan);font-size:11px;letter-spacing:2px;text-transform:uppercase;
  border:1px solid var(--line);padding:5px 12px;border-radius:999px;white-space:nowrap}

.grid{columns:4 270px;column-gap:18px}

/* ---------- Cards (3D tilt) ---------- */
.card{break-inside:avoid;margin:0 0 18px;position:relative;border-radius:var(--radius);
  overflow:hidden;cursor:pointer;background:var(--bg-2);border:1px solid var(--line);
  box-shadow:0 10px 30px rgba(0,0,0,.5);transform-style:preserve-3d;
  transition:transform .25s cubic-bezier(.2,.7,.2,1),box-shadow .25s,border-color .25s}
.card:hover{border-color:rgba(55,232,214,.55);
  box-shadow:var(--shadow),0 0 30px rgba(55,232,214,.28)}
.card img{width:100%;height:auto;background:var(--bg-2);transition:transform .6s ease;transform:translateZ(0)}
.card:hover img{transform:scale(1.07)}
/* glass shine that follows the cursor */
.card::before{content:"";position:absolute;inset:0;z-index:2;pointer-events:none;opacity:0;
  transition:opacity .3s;
  background:radial-gradient(240px circle at var(--mx,50%) var(--my,50%),rgba(255,255,255,.22),transparent 60%)}
.card:hover::before{opacity:1}
.card .cap{position:absolute;left:0;right:0;bottom:0;z-index:3;
  padding:30px 14px 12px;font-size:12px;color:#fff;letter-spacing:.3px;
  background:linear-gradient(transparent,rgba(0,0,0,.82));
  opacity:0;transform:translateY(8px);transition:.25s;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card:hover .cap{opacity:1;transform:none}
.hidden{display:none !important}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(24px)}
.reveal.in{opacity:1;transform:none;transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}
  .aurora span,.hero h1,.scroll-cue{animation:none}}

/* ---------- Lightbox ---------- */
.lb{position:fixed;inset:0;z-index:80;display:none;align-items:center;justify-content:center;
  background:radial-gradient(circle at 50% 40%,rgba(6,26,24,.92),rgba(1,4,6,.98));backdrop-filter:blur(8px)}
.lb.open{display:flex;animation:fade .3s ease}
@keyframes fade{from{opacity:0}to{opacity:1}}
.lb img{max-width:92vw;max-height:86vh;border-radius:14px;box-shadow:var(--shadow),0 0 60px rgba(55,232,214,.15)}
.lb .lb-cap{position:absolute;bottom:22px;color:var(--muted);font-size:13px;letter-spacing:1px}
.lb button{position:absolute;background:rgba(255,255,255,.06);border:1px solid var(--line);color:#fff;
  width:50px;height:50px;border-radius:50%;font-size:22px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:.15s}
.lb button:hover{background:linear-gradient(120deg,var(--cyan),var(--violet));color:#02100e;
  box-shadow:0 0 20px rgba(55,232,214,.6)}
.lb .close{top:20px;right:20px}
.lb .prev{left:20px;top:50%;transform:translateY(-50%)}
.lb .next{right:20px;top:50%;transform:translateY(-50%)}

/* ---------- Contact ---------- */
.contact{max-width:var(--maxw);margin:30px auto 0;padding:70px 26px 40px}
.contact-inner{position:relative;border:1px solid var(--line);border-radius:26px;padding:56px 32px;text-align:center;
  background:var(--panel);backdrop-filter:blur(10px);overflow:hidden;
  box-shadow:var(--shadow)}
.contact-inner::before{content:"";position:absolute;inset:-1px;z-index:-1;border-radius:26px;
  background:conic-gradient(from 0deg,var(--cyan),var(--violet),var(--ember),var(--cyan));
  opacity:.25;filter:blur(30px)}
.contact-inner h2{margin:0 0 10px;font-family:var(--disp);font-size:clamp(30px,5vw,48px);font-weight:700;
  background:linear-gradient(120deg,#eafffb,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.contact-inner p{color:var(--muted);margin:0 auto 30px;max-width:460px}
.contact-cards{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.contact-card{display:flex;align-items:center;gap:14px;cursor:pointer;text-align:left;font:inherit;color:var(--ink);
  padding:15px 18px;border-radius:15px;min-width:250px;
  background:rgba(255,255,255,.03);border:1px solid var(--line);transition:.2s}
.contact-card:hover{transform:translateY(-4px);border-color:rgba(55,232,214,.55);box-shadow:0 0 28px rgba(55,232,214,.25)}
.contact-card .ic{width:44px;height:44px;flex:none;display:flex;align-items:center;justify-content:center;
  border-radius:12px;font-size:20px;background:linear-gradient(135deg,var(--violet),rgba(55,232,214,.2))}
.contact-card .ct{display:flex;flex-direction:column;line-height:1.25;margin-right:auto}
.contact-card .ct small{color:var(--muted);font-size:10px;letter-spacing:2px;text-transform:uppercase}
.contact-card .ct b{font-size:15px}
.contact-card .copy-label{font-size:11px;color:var(--cyan);border:1px solid rgba(55,232,214,.35);
  padding:4px 10px;border-radius:999px;transition:.18s}
.contact-card.copied .copy-label{background:var(--cyan);color:#02100e;border-color:transparent}

/* ---------- Footer / back to top ---------- */
footer{border-top:1px solid var(--line);color:var(--muted);font-size:12.5px;text-align:center;
  padding:34px 22px;letter-spacing:.5px}
#to-top{position:fixed;right:24px;bottom:24px;z-index:60;width:48px;height:48px;border-radius:50%;
  cursor:pointer;font-size:20px;color:#02100e;border:none;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  box-shadow:0 8px 24px rgba(0,0,0,.5),0 0 20px rgba(55,232,214,.5);
  opacity:0;transform:translateY(16px) scale(.9);pointer-events:none;transition:.28s}
#to-top.show{opacity:1;transform:none;pointer-events:auto}
#to-top:hover{filter:brightness(1.15)}

@media(max-width:640px){
  .filters{top:0;padding:10px 14px;gap:6px;margin-top:20px;
    flex-wrap:nowrap;overflow-x:auto;justify-content:flex-start;
    scrollbar-width:none;-webkit-mask-image:none;mask-image:none}
  .filters::-webkit-scrollbar{display:none}
  .chip{padding:7px 12px;font-size:12px;flex:none}
  .hero{padding:14vh 18px 30px}
  main{padding:10px 16px 60px}
  .contact{padding:50px 16px 30px}
  .contact-inner{padding:40px 20px}
  .grid{columns:2 150px}
  .contact-card{min-width:0;width:100%}
  .section-head .meta{margin-top:-14px}
}