.sendiri {
  margin: 0;
  padding: 0;
  font-family: 'Playfair Display', 'Segoe UI', serif;
  background-color: transparent;
  color: #fff;
  overflow: hidden;
}

.popup-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

.popup-container {
  position: relative;
  width: 90%;
  max-width: 420px;
  background: #050f69;
  border-radius: 20px;
  overflow: hidden;
  text-align: center;
  animation: rotateScaleIn 0.8s ease, redGlow 3.5s infinite;
  box-shadow: 0 20px 50px rgba(0,0,0,0.8);
  border: 1px solid rgba(255, 0, 0, 0.2);
}

/* 🔥 Glow merah elegan */
@keyframes redGlow {
  0%,100% {
    box-shadow: 0 0 20px rgba(180,0,0,0.4), 0 0 40px rgba(120,0,0,0.3);
  }
  50% {
    box-shadow: 0 0 35px rgba(255,0,0,0.7), 0 0 60px rgba(180,0,0,0.5);
  }
}

/* Shine effect */
.popup-container::before {
  content:"";
  position:absolute;
  top:-100%;
  left:-100%;
  width:200%;
  height:200%;
  background: linear-gradient(
    135deg,
    transparent 45%,
    rgba(192,192,192,0.25) 50%,
    transparent 55%
  );
  animation: shineDiagonal 5s linear infinite;
}

@keyframes shineDiagonal {
  0% {transform: translate(-100%,-100%) rotate(30deg);}
  100% {transform: translate(100%,100%) rotate(30deg);}
}

.popup-image {
  width:100%;
  border-bottom:1px solid rgba(255,0,0,0.2);
}

.popup-buttons {
  display:flex;
  flex-direction:column;
  gap:15px;
  padding:25px;
}

.popup-buttons a {
  padding:16px;
  border-radius:50px;
  text-decoration:none;
  font-weight:700;
  color:#fff;
  background: linear-gradient(135deg,#6982ee, #1230b6);
  box-shadow:0 10px 25px rgba(255,0,0,0.5);
  text-transform:uppercase;
  letter-spacing:1.5px;
  transition:0.4s;
  position:relative;
  overflow:hidden;
}

.popup-buttons a::before {
  content:"";
  position:absolute;
  top:0;
  left:-100%;
  width:100%;
  height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.4),transparent);
}

.popup-buttons a:hover::before {
  left:100%;
}

.popup-buttons a:hover {
  transform:translateY(-4px);
  background: linear-gradient(135deg,#6982ee,#050f69);
}

/* Footer */
.popup-footer {
  font-size:13px;
  padding:20px;
  color:#ccc;
}

.popup-footer span {
  color:#6982ee;
  font-weight:600;
  text-shadow:#050f69;
}

/* Close button */
.close-btn {
  position:absolute;
  top:15px;
  right:15px;
  width:32px;
  height:32px;
  background:rgba(0,0,0,0.6);
  border-radius:50%;
  cursor:pointer;
  border:1px solid rgba(255,0,0,0.6);
}

.close-btn:hover {
  background:#cb0000;
  transform:rotate(90deg);
}

.close-btn::before,
.close-btn::after {
  content:'';
  position:absolute;
  width:16px;
  height:2px;
  background:#fff;
  top:50%;
  left:50%;
}

.close-btn::before {transform:translate(-50%,-50%) rotate(45deg);}
.close-btn::after {transform:translate(-50%,-50%) rotate(-45deg);}

/* Partikel merah */
.particle {
  position:absolute;
  width:8px;
  height:8px;
  background:#1230b6;
  border-radius:50%;
  animation: float 8s infinite;
  opacity:0.6;
}

@keyframes float {
  0% {transform:translateY(0); opacity:0;}
  20% {opacity:1;}
  100% {transform:translateY(-120px); opacity:0;}
}

@keyframes rotateScaleIn {
  0% {opacity:0; transform:scale(0.5);}
  100% {opacity:1; transform:scale(1);}
}