/* LUMEN — "lamplight nostalgia": warm, golden, late-night friendship.
   Friendship cues only: honey light, cream paper, film grain. No romance styling. */
:root{
  --bg:#0d0a07; --ink:#f6edde; --muted:#b6a58c;
  --gold:#eab676; --honey:#f4cf96; --ember:#8a4b2d; --moss:#2e3b33;
  --card:#171209; --line:rgba(246,237,222,.14);
  --center-size:min(46vmin,340px);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:Inter,system-ui,sans-serif;overflow:hidden;
  -webkit-font-smoothing:antialiased;
}
/* warm lamplight atmosphere */
.atmosphere{position:fixed;inset:0;z-index:0;overflow:hidden}
.atmosphere::before{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(234,182,118,.06),transparent 30%,transparent 65%,rgba(58,30,12,.35))}
.orb{position:absolute;border-radius:50%;filter:blur(90px);mix-blend-mode:screen}
.orb-a{width:62vmax;height:62vmax;left:-20vmax;top:-24vmax;opacity:.55;
  background:radial-gradient(circle,#6e4a1e,transparent 65%)}
.orb-b{width:56vmax;height:56vmax;right:-17vmax;bottom:-21vmax;opacity:.5;
  background:radial-gradient(circle,#5c2f1a,transparent 65%)}
.orb-c{width:42vmax;height:42vmax;left:29vw;top:33vh;opacity:.32;
  background:radial-gradient(circle,#24382f,transparent 65%)}
.grain{position:absolute;inset:0;opacity:.1;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence baseFrequency='.9'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.9'/%3E%3C/svg%3E")}
.vignette{position:absolute;inset:0;background:radial-gradient(ellipse at 50% 46%,transparent 38%,rgba(20,10,4,.66) 100%)}

.topbar{position:fixed;top:0;left:0;right:0;z-index:30;display:flex;justify-content:space-between;align-items:center;padding:14px 20px;pointer-events:none}
.brand{font-family:Fraunces,serif;letter-spacing:.35em;font-size:15px;display:flex;align-items:center;gap:10px}
.brand .dot{width:9px;height:9px;border-radius:50%;background:var(--honey);box-shadow:0 0 14px var(--gold);
  animation:lamp 3.2s ease-in-out infinite}
@keyframes lamp{0%,100%{opacity:1}50%{opacity:.55}}
.brand .sub{font-family:Inter;font-size:10px;letter-spacing:.2em;color:var(--muted);margin-left:6px}
.hint{font-size:11px;color:var(--muted);letter-spacing:.04em}

/* stage */
.stage{position:fixed;inset:0;z-index:1;perspective:1200px}
.photo{position:absolute;border-radius:14px;overflow:hidden;background:linear-gradient(135deg,#262015,#14100a);
  border:1px solid var(--line);box-shadow:0 18px 50px rgba(0,0,0,.6);cursor:pointer;
  transition:transform .5s cubic-bezier(.2,.8,.2,1),box-shadow .4s;will-change:transform}
.photo img{width:100%;height:100%;object-fit:cover;display:block;
  filter:sepia(.18) saturate(1.08) contrast(1.01) brightness(.99);
  transition:filter .6s ease}
.photo:hover img{filter:sepia(.04) saturate(1.1) contrast(1.02)}
.photo .ph{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  font-size:11px;letter-spacing:.18em;color:rgba(255,255,255,.55);text-align:center;padding:8px}
.photo:hover{box-shadow:0 24px 70px rgba(234,182,118,.28);z-index:25!important}
.photo figcaption{position:absolute;left:0;right:0;bottom:0;padding:16px 10px 8px;font-size:12px;
  font-family:Fraunces,serif;font-style:italic;letter-spacing:.03em;
  color:rgba(246,237,222,.85);background:linear-gradient(transparent,rgba(12,7,3,.6))}

/* featured: distinct — honey rim, larger radius, lamplight glow */
.photo.featured{border-radius:22px;border:1px solid rgba(234,182,118,.6);
  box-shadow:0 0 0 1px rgba(234,182,118,.16),0 22px 60px rgba(0,0,0,.65),0 0 38px rgba(234,182,118,.16)}
.photo.featured::after{content:"✦";position:absolute;top:8px;right:10px;font-size:12px;color:var(--honey);opacity:.95}
.photo.featured figcaption{color:#f9e6c4}

/* center */
.center-wrap{position:absolute;left:50%;top:46%;transform:translate(-50%,-50%);z-index:20;text-align:center}
.center-disc{position:relative;width:var(--center-size);height:var(--center-size);border-radius:50%;overflow:hidden;
  border:2px solid rgba(244,207,150,.65);background:#161009;
  box-shadow:0 30px 90px rgba(0,0,0,.75),0 0 70px rgba(234,182,118,.22);will-change:transform}
.center-disc img{width:100%;height:100%;object-fit:cover;border-radius:50%;display:block;
  filter:sepia(.14) saturate(1.1) contrast(1.02)}
.center-disc img.missing{display:none}
.disc-sheen{position:absolute;inset:0;border-radius:50%;pointer-events:none;
  background:conic-gradient(from 0deg,transparent 0 40%,rgba(255,240,214,.16) 48%,transparent 56%,transparent 100%)}
.disc-fallback{position:absolute;inset:0;display:none;flex-direction:column;gap:6px;align-items:center;justify-content:center;
  background:radial-gradient(circle at 35% 30%,#4a3520,#141019 70%);font-family:Fraunces,serif;letter-spacing:.3em}
.disc-fallback small{font-family:Inter;font-size:10px;letter-spacing:.1em;color:var(--muted)}
.disc-fallback.show{display:flex}
.center-glow{position:absolute;left:50%;top:50%;width:calc(var(--center-size)*1.75);height:calc(var(--center-size)*1.75);
  transform:translate(-50%,-50%);border-radius:50%;pointer-events:none;opacity:.55;
  background:radial-gradient(circle,rgba(244,207,150,.4),rgba(202,124,60,.14) 45%,transparent 68%)}
.ring{position:absolute;left:50%;top:50%;border:1px solid rgba(244,207,150,.2);border-radius:50%;pointer-events:none;transform:translate(-50%,-50%)}
.ring-1{width:calc(var(--center-size)*1.28);height:calc(var(--center-size)*1.28)}
.ring-2{width:calc(var(--center-size)*1.52);height:calc(var(--center-size)*1.52);border-style:dashed;opacity:.65}
.center-caption{margin-top:14px;display:flex;flex-direction:column;gap:3px}
.center-caption strong{font-family:Fraunces,serif;font-weight:500;letter-spacing:.25em;font-size:13px;text-transform:uppercase;color:var(--honey)}
.center-caption span{font-size:12px;color:var(--muted);letter-spacing:.05em;font-family:Fraunces,serif;font-style:italic}

/* player */
.player{position:fixed;left:0;right:0;bottom:0;z-index:40;display:flex;flex-direction:column;align-items:center;
  padding:10px 16px 12px;background:linear-gradient(transparent,rgba(10,6,3,.86) 40%)}
.player-inner{display:flex;align-items:center;gap:14px;width:min(680px,94vw);padding:10px 16px;border-radius:18px;
  background:rgba(24,17,10,.74);border:1px solid var(--line);backdrop-filter:blur(14px)}
.play-btn{width:46px;height:46px;border-radius:50%;border:1px solid rgba(244,207,150,.65);
  background:radial-gradient(circle at 30% 30%,#f7d9a8,#c08a45);
  color:#2a1a08;font-size:17px;cursor:pointer;flex:none}
.play-btn:hover{transform:scale(1.05)}
.seek-row{flex:1;min-width:0;display:flex;align-items:center;gap:8px;font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}
input[type=range]{accent-color:var(--gold);cursor:pointer}
#seek{flex:1;min-width:0}
#vol{width:80px;flex:none}
.add-btn{flex:none;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:14px;color:var(--honey);cursor:pointer;
  border:1px solid rgba(244,207,150,.4);background:rgba(20,13,7,.6);
  transition:box-shadow .3s,border-color .3s,transform .2s}
.add-btn:hover{border-color:var(--honey);box-shadow:0 0 16px rgba(234,182,118,.35);transform:scale(1.06)}
.toast{position:fixed;top:64px;left:50%;transform:translateX(-50%) translateY(-8px);z-index:50;background:#221a10;border:1px solid var(--line);
  padding:10px 16px;border-radius:12px;font-size:12px;opacity:0;transition:.3s;pointer-events:none;max-width:90vw}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* mobile gallery section: hidden on desktop, scrollable flow on mobile */
#mobileGallery{display:none}

/* lightbox */
.lightbox{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transition:opacity .35s ease}
.lightbox.open{opacity:1;pointer-events:auto}
.lb-backdrop{position:absolute;inset:0;background:rgba(9,6,3,.9);backdrop-filter:blur(10px)}
.lb-frame{position:relative;margin:0;max-width:min(92vw,880px);transform:scale(.93);transition:transform .35s ease;text-align:center}
.lightbox.open .lb-frame{transform:scale(1)}
.lb-frame img{max-width:min(92vw,880px);max-height:76vh;width:auto;height:auto;object-fit:contain;
  border-radius:14px;border:1px solid rgba(244,207,150,.45);
  box-shadow:0 30px 90px rgba(0,0,0,.7),0 0 50px rgba(234,182,118,.15)}
.lb-frame figcaption{margin-top:10px;font-family:Fraunces,serif;font-style:italic;font-size:14px;color:var(--honey)}
.lb-close{position:absolute;top:14px;right:16px;width:38px;height:38px;border-radius:50%;cursor:pointer;
  font-size:20px;line-height:1;color:var(--honey);
  border:1px solid rgba(244,207,150,.45);background:rgba(20,13,7,.65);transition:box-shadow .3s,transform .2s}
.lb-close:hover{box-shadow:0 0 18px rgba(234,182,118,.4);transform:scale(1.07)}

@media (max-width:760px){
  :root{--center-size:min(44vmin,168px)}
  body{overflow-y:auto;overflow-x:hidden}
  .stage{position:relative;height:100vh;height:100svh;inset:auto}
  .center-wrap{top:37%}
  .center-caption{max-width:86vw;margin-left:auto;margin-right:auto}
  .center-caption strong{font-size:12px}
  .hint{display:none}
  .photo{border-radius:10px}
  .photo.featured{border-radius:16px}
  .photo figcaption{font-size:11px}
  #mobileGallery{display:block;position:relative;z-index:2;max-width:560px;margin:0 auto;
    padding:10px 16px 150px}
  .mg-kicker{text-align:center;font-family:Fraunces,serif;font-style:italic;
    font-size:14px;color:var(--honey);opacity:.9;margin:26px 0 4px;letter-spacing:.06em}
  .mg-title{font-family:Fraunces,serif;font-style:italic;font-weight:400;font-size:22px;
    text-align:center;color:var(--honey);margin:0 0 2px;letter-spacing:.02em}
  .mg-sub{text-align:center;font-size:11px;letter-spacing:.22em;color:var(--muted);margin:0 0 20px;text-transform:uppercase}
  .mg-cols{display:grid;grid-template-columns:1fr 1fr;gap:16px 14px;align-items:start}
  .photo.flow{position:relative;display:block;width:100%;margin:0;
    content-visibility:auto;contain-intrinsic-size:auto 420px}
  .photo.flow img{width:100%;height:auto;display:block}
  .player{padding:8px 10px 10px}
  .player-inner{gap:8px;padding:8px 10px;border-radius:14px;width:min(430px,94vw)}
  .play-btn{width:40px;height:40px;font-size:15px}
  #vol{width:42px}
  .add-btn{width:28px;height:28px;font-size:12px}
  .seek-row{gap:6px;font-size:10px}
}