/* ============================================================
   ShareCardLink - Chat page ka effects layer
   hero | scroll animation | mouse effect | page transition
   skiper UI | scroll driven cards | displacement hover
   Sirf add karta hai - kisi maujooda style ko badalta nahi.
   ============================================================ */

/* ---------- page transition ---------- */
#fx-curtain{position:fixed;inset:0;z-index:9999;display:flex;pointer-events:none}
#fx-curtain span{
  flex:1;background:linear-gradient(180deg,#0f9d7e,#0b7a63);
  transform:translateY(0);transition:transform .7s cubic-bezier(.76,0,.24,1);
}
#fx-curtain.off span{transform:translateY(-101%)}
#fx-curtain.off span:nth-child(2){transition-delay:.06s}
#fx-curtain.off span:nth-child(3){transition-delay:.12s}
#fx-curtain.off span:nth-child(4){transition-delay:.18s}
#fx-curtain.done{display:none}

/* ---------- mouse effect ---------- */
#fx-cur{
  position:fixed;top:0;left:0;width:24px;height:24px;border-radius:50%;
  border:1.5px solid rgba(11,122,99,.6);transform:translate3d(-60px,-60px,0);
  pointer-events:none;z-index:9000;transition:width .18s,height .18s,background .18s;
}
#fx-cur.on{width:42px;height:42px;background:rgba(11,122,99,.10)}
#fx-glow{
  position:fixed;top:0;left:0;width:440px;height:440px;border-radius:50%;
  background:radial-gradient(circle,rgba(19,163,131,.16),transparent 68%);
  transform:translate3d(-999px,-999px,0);pointer-events:none;z-index:0;filter:blur(6px);
}
@media (hover:none){#fx-cur,#fx-glow{display:none}}

/* ---------- scroll progress ---------- */
#fx-prog{position:fixed;top:0;left:0;right:0;height:3px;z-index:8000}
#fx-prog i{display:block;height:100%;width:0;background:linear-gradient(90deg,#0b7a63,#13a383,#5ec9a7)}

/* ---------- HERO ---------- */
.ch-hero{position:relative;overflow:hidden;margin:0 0 6px;padding:26px 18px 30px}
.ch-hero-bg{
  position:absolute;inset:-25% -12%;z-index:0;will-change:transform;
  background:
    radial-gradient(40% 44% at 18% 20%,rgba(19,163,131,.30),transparent 64%),
    radial-gradient(38% 40% at 84% 30%,rgba(94,201,167,.28),transparent 66%),
    radial-gradient(44% 40% at 50% 96%,rgba(11,122,99,.20),transparent 68%);
  filter:blur(26px);
}
.ch-hero-in{position:relative;z-index:1}
.ch-hero-k{
  margin:0 0 8px;font-size:11.5px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--a);
}
.ch-hero-t{margin:0;font-size:clamp(26px,8.5vw,40px);line-height:1.08;letter-spacing:-.025em;font-weight:800}
.ch-hero-t span{
  background:linear-gradient(100deg,#0b7a63,#13a383 55%,#5ec9a7);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.ch-hero-s{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.ch-hero-s span{
  border:1px solid var(--line);background:rgba(255,255,255,.72);backdrop-filter:blur(8px);
  padding:9px 14px;border-radius:999px;font-size:12.5px;color:var(--mut);
}
.ch-hero-s b{color:var(--tx);font-size:14px}

/* ---------- scroll reveal ---------- */
.sp-rise,.sp-sd{
  opacity:0;transform:translateY(22px);
  transition:opacity .65s cubic-bezier(.22,1,.36,1),transform .65s cubic-bezier(.22,1,.36,1);
}
.sp-rise.fx-on,.sp-sd.fx-on{opacity:1;transform:none}
.sp-sd.fx-on{transition-delay:calc(var(--k,0) * 45ms)}

/* ---------- magnetic ---------- */
.sp-mag{transition:transform .2s cubic-bezier(.34,1.56,.64,1)}

/* ---------- INVITE hero ---------- */
.ch-inv-hero{text-align:center;padding:34px 20px 30px}
.ch-inv-ico{
  width:82px;height:82px;margin:0 auto 18px;border-radius:26px;display:grid;place-items:center;
  color:#fff;background:linear-gradient(135deg,#13a383,#0b7a63);
  box-shadow:0 20px 40px -18px rgba(11,122,99,.9);animation:fxFloat 4.6s ease-in-out infinite;
}
.ch-inv-ico svg{width:36px;height:36px;stroke-width:1.7}
@keyframes fxFloat{0%,100%{transform:translateY(0) rotate(-3deg)}50%{transform:translateY(-10px) rotate(3deg)}}
.ch-inv-hero h3{margin:0 0 20px;font-size:19px;line-height:1.35;letter-spacing:-.01em}
.ch-inv-hero .sp-btn{padding:14px 26px;font-size:14.5px}

/* ---------- picked contacts: scroll driven cards + displacement ---------- */
.ch-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;padding:6px 12px 20px}
.ch-card{
  background:var(--card);border:1px solid var(--line);border-radius:18px;
  padding:16px 14px;text-align:center;
  transition:opacity .7s cubic-bezier(.22,1,.36,1),transform .7s cubic-bezier(.22,1,.36,1),
             box-shadow .3s,border-color .3s;
}
.ch-card:hover{border-color:rgba(19,163,131,.55);box-shadow:0 20px 40px -24px rgba(0,0,0,.5)}
.ch-card-av{
  width:56px;height:56px;margin:0 auto 12px;border-radius:50%;display:grid;place-items:center;
  font:700 21px/1 inherit;color:#fff;background:linear-gradient(135deg,#13a383,#0b7a63);
  transition:transform .6s cubic-bezier(.22,1,.36,1),filter .5s;
}
.ch-card:hover .ch-card-av{transform:scale(1.08);filter:url(#fx-disp)}
.ch-card-t b{display:block;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ch-card-t span{display:block;font-size:12px;color:var(--mut);margin-top:2px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ch-card-b{
  margin-top:12px;width:100%;border:0;cursor:pointer;background:var(--a);color:#fff;
  font:600 13px/1 inherit;padding:11px;border-radius:999px;
}
.ch-card-b.done{background:#dbeee8;color:var(--a)}

/* ---------- manual fallback ---------- */
.ch-manual{margin-top:18px;text-align:center}
.ch-manual p{margin:0 0 12px;font-size:13px;color:var(--mut)}
.ch-manual div{display:flex;gap:10px;max-width:360px;margin:0 auto}
.ch-manual input{
  flex:1;min-width:0;border:1px solid var(--line);border-radius:12px;outline:none;
  padding:13px 15px;font:15px/1 inherit;background:#fff;color:var(--tx);
}
.ch-manual input:focus{border-color:var(--a)}
.ch-manual button{
  border:0;background:var(--a);color:#fff;font:600 14px/1 inherit;
  padding:13px 20px;border-radius:12px;cursor:pointer;
}

/* ---------- skiper UI: tabs ka sliding pill ---------- */
/* .ch-tabs sticky hi rehti hai (chat_page.css se) */
#fx-pill{
  position:absolute;top:0;left:0;height:100%;border-radius:999px;z-index:0;
  background:var(--a);transition:transform .42s cubic-bezier(.22,1,.36,1),width .42s cubic-bezier(.22,1,.36,1);
  pointer-events:none;
}
.ch-tab{position:relative;z-index:1;background:#e7ebee}
.ch-tab.on{background:transparent}

@media (prefers-reduced-motion:reduce){
  .scl-sp *{animation:none!important;transition-duration:.01ms!important}
  .sp-rise,.sp-sd,.ch-card{opacity:1!important;transform:none!important}
  #fx-cur,#fx-glow{display:none}
}

/* ---------- invite: group headings + saved list ---------- */
.ch-gh{
  margin:18px 12px 8px;font-size:12.5px;font-weight:700;color:var(--mut);
  letter-spacing:.02em;
}
.ch-inv-hero.small{padding:18px 20px 14px}
.ch-inv-hero.small .ch-inv-ico{width:54px;height:54px;border-radius:18px;margin-bottom:12px;animation:none}
.ch-inv-hero.small .ch-inv-ico svg{width:24px;height:24px}
.ch-inv-hero.small h3{font-size:15px;margin-bottom:14px}
.ch-inv-hero.small .sp-btn{padding:11px 20px;font-size:13.5px}
.ch-card-av.has-img{background:#dfe5e9;overflow:hidden}
.ch-card-av.has-img img{width:100%;height:100%;object-fit:cover}
.ch-card-b{display:block;text-align:center;text-decoration:none}
.ch-again{display:flex;gap:10px;justify-content:center;padding:6px 12px 24px;flex-wrap:wrap}
.ch-again button{
  border:1px solid var(--line);background:var(--card);color:var(--tx);
  font:600 13px/1 inherit;padding:11px 18px;border-radius:999px;cursor:pointer;
}
#ch-clear{color:#b4232b;border-color:rgba(180,35,43,.3)}

/* ---------- contacts allow banner ---------- */
.ch-allow{
  position:relative;display:flex;align-items:center;gap:12px;
  margin:0 12px 12px;padding:14px 14px;border-radius:16px;
  background:linear-gradient(135deg,#e8f6f1,#dcefe8);border:1px solid rgba(11,122,99,.18);
}
.ch-allow-i{
  width:42px;height:42px;flex:0 0 auto;border-radius:14px;display:grid;place-items:center;
  color:#fff;background:linear-gradient(135deg,#13a383,#0b7a63);
}
.ch-allow-i svg{width:21px;height:21px;stroke-width:1.8}
.ch-allow-t{min-width:0;flex:1;padding-right:6px}
.ch-allow-t b{display:block;font-size:14px;line-height:1.3}
.ch-allow-t span{display:block;font-size:12px;color:var(--mut);margin-top:3px;line-height:1.45}
#ch-allow-b{
  flex:0 0 auto;border:0;cursor:pointer;background:var(--a);color:#fff;
  font:600 13px/1 inherit;padding:11px 18px;border-radius:999px;
}
.ch-allow-x{
  position:absolute;top:6px;right:6px;width:26px;height:26px;border:0;background:transparent;
  color:var(--mut);cursor:pointer;display:grid;place-items:center;
}
.ch-allow-x svg{width:14px;height:14px;stroke-width:2.2}
@media (max-width:400px){
  .ch-allow-t span{display:none}
}

/* ---------- + icon hi Allow button ---------- */
button.ch-inv-ico{
  border:0;cursor:pointer;position:relative;flex-direction:column;gap:4px;
  width:96px;height:96px;border-radius:30px;padding:0;
}
button.ch-inv-ico em{
  font-style:normal;font-size:12.5px;font-weight:700;letter-spacing:.04em;color:#fff;
}
button.ch-inv-ico svg{width:30px;height:30px}
button.ch-inv-ico:active{transform:scale(.95)}
/* button hai to hilna band - tap karne me dikkat na ho */
button.ch-inv-ico{animation:none}
button.ch-inv-ico::after{
  content:"";position:absolute;inset:-10px;border-radius:38px;z-index:-1;
  background:radial-gradient(circle,rgba(19,163,131,.22),transparent 70%);
  animation:fxPulse 2.6s ease-in-out infinite;
}
@keyframes fxPulse{0%,100%{transform:scale(1);opacity:.7}50%{transform:scale(1.12);opacity:.25}}
.ch-inv-hero.small button.ch-inv-ico{width:62px;height:62px;border-radius:20px}
.ch-inv-hero.small button.ch-inv-ico svg{width:20px;height:20px}
.ch-inv-hero.small button.ch-inv-ico em{font-size:10px}
.ch-inv-hero h3{margin-top:16px}

/* ---------- Allow text icon ke bahar ---------- */
button.ch-inv-ico em{display:none}
.ch-allow-lbl{
  margin:14px 0 0;font-size:15px;font-weight:700;letter-spacing:.02em;color:var(--a);
}
.ch-inv-hero.small .ch-allow-lbl{font-size:13px;margin-top:10px}