/* Neon gradient border (neon.css) */
.neon-border {
  position:relative;
  border-radius:16px;
  overflow:hidden;
}

.neon-border::before {
  content:"";
  position:absolute;
  inset:-2px;
  background:conic-gradient(
       #00eaff,
       #0077ff,
       #00eaff
  );
  filter:blur(12px);
  z-index:-1;
  animation:rotateBorder 6s linear infinite;
}

@keyframes rotateBorder {
  0%   { transform:rotate(0deg); }
  100% { transform:rotate(360deg); }
}

/* optional helper for inner glow */
.neon-glow {
  box-shadow: 0 8px 30px rgba(0,234,255,0.08), inset 0 1px 0 rgba(255,255,255,0.02);
}

/* -------- Popup Overlay --------*/
.hud-popup-overlay {
    position: fixed;
    inset: 0;
    backdrop-filter: blur(8px);
    background: rgba(0,0,0,0.55);
    display: none;
    z-index: 50;
}

/* -------- Popup Container --------*/
.hud-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    width: 260px;
    transform: translate(-50%, -50%) scale(0.6);
    background: rgba(0, 8, 15, 0.85);
    padding: 18px;
    border-radius: 18px;
    box-shadow: 0 0 35px #00eaffaa, 0 0 60px #00eaff55;
    display: none;
    z-index: 60;
    backdrop-filter: blur(12px);
    animation: popupIn 0.35s ease forwards;
}

@keyframes popupIn {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(0.5); }
  100% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

/* -------- Popup Inner Layout --------*/
.hud-popup-inner {
  display: grid;
  grid-template-columns: repeat(1, 1fr); /* 2 columns */
  gap: 10px;
  text-align: center;
}

/* -------- Individual Items --------*/
.hud-item {
    display: flex;
    flex-direction: row;   /* icon + text in one line */
    align-items: center;   /* vertically aligned */
    justify-content: flex-start;  /* LEFT alignment */
    gap: 12px;

    padding: 12px;
    border-radius: 12px;
    background: rgba(0, 30, 40, 0.5);
    color: #00eaff;

    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 0 10px #00eaff55 inset;
    transition: 0.25s;
}


.hud-item:hover {
    background: rgba(0, 80, 100, 0.7);
    transform: translateX(6px);
    box-shadow: 0 0 15px #00eaffaa inset;
}

/* Small icon */
.hud-icon {
    width: 35px;
    height: 28px;
    filter: drop-shadow(0 0 10px #00eaff);
}


.hud-icon {
  width: 55px;
  height: 55px;
}

/* Auto pulsing animation */
.auto-reactor {
  animation: reactorPulse 1.6s ease-in-out infinite alternate;
  filter: drop-shadow(0 0 6px cyan);
}

@keyframes reactorPulse {
  0% {
    transform: scale(0.92);
    filter: brightness(0.7) drop-shadow(0 0 4px cyan);
  }

  100% {
    transform: scale(1.06);
    filter: brightness(1.7) drop-shadow(0 0 14px cyan);
  }
}