:root{--vvh:100dvh}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html,body{margin:0;padding:0;min-height:100%;width:100%;font-family:Arial,Helvetica,sans-serif}
body{
  min-height:var(--vvh);
  color:#fff;
  background:
    radial-gradient(circle at 20% 20%, rgba(255,255,255,.10), transparent 25%),
    radial-gradient(circle at 80% 10%, rgba(255,90,140,.15), transparent 22%),
    radial-gradient(circle at 50% 80%, rgba(255,255,255,.05), transparent 30%),
    linear-gradient(135deg,#0b1020 0%, #1a2338 38%, #521225 72%, #8b1538 100%);
  display:flex;
  align-items:flex-start;
  justify-content:center;
  overflow:auto;
  padding:12px;
}
body.call-open{overflow:hidden}
.bg-glow,.bg-glow2{position:fixed;border-radius:50%;filter:blur(90px);pointer-events:none;z-index:0}
.bg-glow{width:340px;height:340px;left:-60px;top:-40px;background:rgba(255,70,130,.20)}
.bg-glow2{width:420px;height:420px;right:-100px;bottom:-120px;background:rgba(255,255,255,.10)}
.falling-hearts{position:fixed;inset:0;overflow:hidden;pointer-events:none;z-index:1}
.flake{
  position:absolute;top:-80px;left:0;width:var(--size);height:var(--size);
  transform:rotate(-45deg);
  background:linear-gradient(145deg, rgba(255,110,160,.95), rgba(214,22,85,.95));
  border-radius:8px;opacity:var(--opacity);
  animation:fall var(--duration) linear var(--delay) infinite,sway var(--sway) ease-in-out var(--delay) infinite;
  box-shadow:0 6px 18px rgba(255,60,120,.25), inset 0 3px 8px rgba(255,255,255,.22)
}
.flake:before,.flake:after{content:"";position:absolute;width:100%;height:100%;background:inherit;border-radius:50%}
.flake:before{top:-50%;left:0}.flake:after{top:0;left:50%}
.flake span{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  transform:rotate(45deg);font-size:calc(var(--size) * .22);font-weight:800;color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.25)
}
.wrap{position:relative;z-index:5;width:min(100%,1280px)}
.card{
  position:relative;border-radius:26px;
  background:linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.05));
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 24px 80px rgba(0,0,0,.26), inset 0 1px 0 rgba(255,255,255,.10);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);overflow:hidden
}
.inner{display:grid;grid-template-columns:320px 1fr;min-height:740px}
.left{
  position:relative;padding:26px 20px;border-right:1px solid rgba(255,255,255,.10);
  display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;z-index:2
}
.hero-heart{
  position:relative;z-index:2;margin:0 auto 18px;width:min(44vw,200px);aspect-ratio:1/1;
  display:flex;align-items:center;justify-content:center;transform:rotate(-45deg);
  background:linear-gradient(145deg,#ff4f87,#b60f3b);border-radius:18px;
  box-shadow:0 24px 80px rgba(255,50,110,.35), inset 0 8px 18px rgba(255,255,255,.18), inset 0 -10px 24px rgba(0,0,0,.20);
  animation:beat 1.7s ease-in-out infinite
}
.hero-heart:before,.hero-heart:after{content:"";position:absolute;width:100%;height:100%;background:inherit;border-radius:50%}
.hero-heart:before{top:-50%;left:0}.hero-heart:after{top:0;left:50%}
.hero-heart .text{position:relative;z-index:3;transform:rotate(45deg);font-size:clamp(34px,7vw,66px);font-weight:900;letter-spacing:6px;color:#fff;text-shadow:0 0 16px rgba(255,255,255,.35),0 4px 16px rgba(0,0,0,.28)}
.left h1{margin:0 0 8px;font-size:28px;font-weight:800;line-height:1.2}
.left p{margin:0 auto;max-width:260px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.92)}
.users{margin-top:16px;display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.tag{padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.12);font-size:13px;font-weight:700}
.right{position:relative;z-index:2;padding:14px;display:flex;flex-direction:column;min-width:0}
.login-box{max-width:430px;width:100%;margin:auto}
.login-title{font-size:28px;font-weight:800;margin:0 0 10px}
.login-sub{margin:0 0 18px;color:rgba(255,255,255,.82);line-height:1.7;font-size:15px}
.field{margin-bottom:12px}
input,textarea{
  width:100%;border:none;outline:none;border-radius:15px;padding:14px 16px;
  background:rgba(255,255,255,.10);color:#fff;border:1px solid rgba(255,255,255,.14);font-size:16px
}
input::placeholder,textarea::placeholder{color:rgba(255,255,255,.55)}
.btn{
  border:none;outline:none;cursor:pointer;border-radius:15px;padding:12px 14px;font-weight:800;font-size:14px;color:#fff;
  background:linear-gradient(135deg,#ff4f87,#d4145a);box-shadow:0 10px 24px rgba(255,60,120,.28);transition:transform .15s ease,opacity .15s ease
}
.btn:hover{transform:translateY(-1px)}
.btn.secondary{background:rgba(255,255,255,.10);box-shadow:none;border:1px solid rgba(255,255,255,.12)}
.btn.dark{background:rgba(0,0,0,.22);box-shadow:none;border:1px solid rgba(255,255,255,.10)}
.btn.end{background:linear-gradient(135deg,#ff4d4d,#d41f1f)}
.btn.small{padding:10px 12px;font-size:13px}
.error{margin-top:10px;min-height:20px;color:#ffd4de;font-size:14px}
.chat-top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;margin-bottom:12px;flex-wrap:wrap}
.chat-title{font-size:22px;font-weight:800;margin:0;line-height:1.2}
.chat-sub{margin:4px 0 0;color:rgba(255,255,255,.80);font-size:13px;line-height:1.5}
.top-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:12px}
.panel{border-radius:20px;background:rgba(0,0,0,.16);border:1px solid rgba(255,255,255,.08);padding:12px}
.call-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap}
.call-title{margin:0;font-size:17px;font-weight:800}
.actions{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:8px;width:100%}
.actions .btn{width:100%;min-height:44px}
.panel-note{margin:0 0 12px;color:rgba(255,255,255,.86);line-height:1.7;font-size:14px}
.status{padding:10px 12px;border-radius:12px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);font-size:13px;color:rgba(255,255,255,.92);line-height:1.5}
.messages{
  flex:1 1 auto;min-height:220px;max-height:38vh;overflow:auto;padding:12px;border-radius:18px;
  background:rgba(0,0,0,.16);border:1px solid rgba(255,255,255,.08)
}
.msg{display:flex;margin-bottom:10px}
.msg.mine{justify-content:flex-end}
.bubble{
  max-width:min(88%,520px);padding:10px 12px;border-radius:16px;background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.10);box-shadow:0 10px 24px rgba(0,0,0,.12);word-wrap:break-word;white-space:pre-wrap;font-size:14px;line-height:1.5
}
.msg.mine .bubble{background:linear-gradient(135deg, rgba(255,79,135,.95), rgba(212,20,90,.95))}
.msg-image{display:block;max-width:100%;width:min(260px,70vw);height:auto;border-radius:14px;border:1px solid rgba(255,255,255,.18);box-shadow:0 10px 24px rgba(0,0,0,.18)}
.msg-image-link{display:inline-block;line-height:0}
.meta{display:block;margin-top:6px;font-size:10px;opacity:.82}
.emoji-row{display:flex;flex-wrap:nowrap;overflow-x:auto;gap:8px;padding-bottom:4px;margin:10px 0;scrollbar-width:none}
.emoji-row::-webkit-scrollbar{display:none}
.emoji{flex:0 0 auto;border:none;cursor:pointer;border-radius:12px;padding:8px 10px;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.10);font-size:18px;line-height:1;min-width:42px;min-height:42px}
.attach-row{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:0 0 10px}
.attach-row .btn{min-height:44px}
.send-row{display:grid;grid-template-columns:1fr 130px;gap:10px;align-items:stretch}
textarea{min-height:84px;resize:none}
.empty{text-align:center;color:rgba(255,255,255,.72);padding:28px 10px;font-size:15px}
.incoming{
  position:fixed;left:50%;top:12px;transform:translateX(-50%);z-index:60;width:min(92vw,520px);
  border-radius:18px;padding:14px;background:rgba(22,12,28,.92);border:1px solid rgba(255,255,255,.16);
  box-shadow:0 18px 40px rgba(0,0,0,.35);display:none
}
.incoming.show{display:block}
.incoming h3{margin:0 0 8px;font-size:18px}
.incoming p{margin:0 0 14px;color:rgba(255,255,255,.88);line-height:1.6;font-size:14px}
.incoming .row{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.call-overlay{
  position:fixed;inset:0;z-index:70;background:#06070b;display:none;flex-direction:column;padding:14px
}
.call-overlay.active{display:flex}
.overlay-top{
  display:flex;justify-content:space-between;align-items:center;gap:12px;padding:8px 6px 14px;flex-wrap:wrap
}
.overlay-title{font-size:22px;font-weight:800}
.overlay-sub{font-size:13px;color:rgba(255,255,255,.78);margin-top:4px}
.overlay-stage{
  position:relative;flex:1 1 auto;min-height:0;border-radius:20px;overflow:hidden;
  background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.08)
}
.remote-video,.local-video{width:100%;height:100%;object-fit:cover;background:#120b16}
.remote-placeholder,.local-placeholder{
  position:absolute;display:flex;align-items:center;justify-content:center;text-align:center;
  color:rgba(255,255,255,.86);font-weight:700;letter-spacing:.5px;background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02))
}
.remote-placeholder{inset:0}
.overlay-local-wrap{
  position:absolute;right:14px;bottom:14px;width:180px;height:120px;border-radius:16px;overflow:hidden;
  border:1px solid rgba(255,255,255,.14);box-shadow:0 10px 24px rgba(0,0,0,.25);background:#120b16
}
.local-video{position:absolute;inset:0}
.local-placeholder{inset:0;font-size:12px;padding:8px}
.overlay-controls{
  display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:10px;padding-top:14px
}
@media (max-width:980px){
  .inner{grid-template-columns:1fr}
  .left{border-right:none;border-bottom:1px solid rgba(255,255,255,.10)}
  .top-grid{grid-template-columns:1fr}
}
@media (max-width:640px){
  .overlay-controls{grid-template-columns:1fr 1fr}

  body{padding:8px}
  .left{padding:20px 14px 16px}
  .right{padding:10px}
  .left h1{font-size:24px}
  .hero-heart{width:min(46vw,160px)}
  .hero-heart .text{font-size:clamp(28px,8vw,48px);letter-spacing:4px}
  .actions{grid-template-columns:1fr 1fr}
  .actions .btn:last-child{grid-column:1 / -1}
  .send-row{grid-template-columns:1fr}
  .chat-top .btn{width:100%}
  .messages{max-height:34vh}
  .overlay-local-wrap{width:120px;height:86px;right:10px;bottom:10px}
  .overlay-controls{grid-template-columns:1fr}
}
@keyframes beat{
  0%,100%{transform:rotate(-45deg) scale(1)}
  18%{transform:rotate(-45deg) scale(1.06)}
  36%{transform:rotate(-45deg) scale(1)}
  52%{transform:rotate(-45deg) scale(1.11)}
  68%{transform:rotate(-45deg) scale(1)}
}
@keyframes fall{
  0%{top:-90px;transform:translateX(0) rotate(-45deg)}
  100%{top:110vh;transform:translateX(10px) rotate(-45deg)}
}
@keyframes sway{
  0%,100%{margin-left:-12px}
  50%{margin-left:12px}
}