/* 🌌 Base Layout */
body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #0f0f0f, #1a1a1a);
  font-family: monospace;
}

.site-logo {
  width: 420px;
  margin-bottom: 20px;
}

/* 💠 Bubble Buttons */
.bubble-buttons {
  display: flex;
  flex-direction: row; /* horizontal */
  justify-content: center; /* center horizontally */
  align-items: center; /* center vertically */
  gap: 40px; /* space between bubbles */
  margin-bottom: 30px;
}

.bubble {
  width: 100px;
  height: 2px;
  border-radius: 50%;
  background: linear-gradient(135deg, #31aff8, #5a88d7);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  box-shadow: 0 0 25px #31aff8;
  transition: all 0.4s ease;
}

.bubble:hover {
  transform: scale(1.15);
  box-shadow: 0 0 40px #bc13fe;
}

/* 💬 Form Container */
.bubble-container {
  display: flex;
  justify-content: center;
  gap: 30px;
  align-items: flex-start;
}

.form-container {
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: all 0.6s ease;
  background: rgba(255, 255, 255, 0.08);
  -webkit-backdrop-filter: blur(15px);
backdrop-filter: blur(15px);

  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 25px;
  box-shadow: 0 0 25px rgba(49, 175, 248, 0.5);
  width: 320px;
  padding: 30px;
  text-align: center;
}




.form-container.active {
  opacity: 1;
  max-height: 500px;
}
#inspect-lessons {
  text-align: center;
  color: #31aff8;
  margin: 60px auto;
  padding: 40px 20px;
  width: 80%;
  max-width: 800px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  box-shadow: 0 0 20px rgba(49, 175, 248, 0.3);
}

/* 🧩 Bubble Form Fields */
.bubble-form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.bubble-form h2 {
  color: #31aff8;
}

.bubble-form input {
  padding: 12px;
  border: none;
  border-radius: 25px;
  text-align: center;
  background: rgba(255, 255, 255, 0.2);
  color: white;
  transition: all 0.3s ease;
}

.bubble-form input:focus {
  background: rgba(255, 255, 255, 0.3);
  box-shadow: 0 0 10px #31aff8;
}
#particles-js {
  position: fixed;
  width: 100%;
  height: 100%;
  z-index: -1;
  top: 0;
  left: 0;
  background: linear-gradient(135deg, #0f0f0f, #1a1a1a);
}
/* --- Modal Background --- */
.modal {
  display: none;
  position: fixed;
  z-index: 999;
  left: 0; top: 0;
  width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.85);
  justify-content: center;
  align-items: center;
  -webkit-backdrop-filter: blur(15px);
backdrop-filter: blur(15px);

}

/* --- Modal Content Box --- */
.modal-content {
  position: relative;
  background: #0d1117;
  border: 2px solid #00ffff55;
  border-radius: 12px;
  width: 90%;
  height: 80%;
  max-width: 1200px;
  overflow: hidden;
  box-shadow: 0 0 25px #00ffffaa;
  animation: fadeIn 0.5s ease;
}

/* --- Embedded Lesson --- */
.modal-content iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* --- Close Button --- */
.close {
  position: absolute;
  top: 10px;
  right: 20px;
  color: #00ffff;
  font-size: 2rem;
  font-weight: bold;
  cursor: pointer;
  z-index: 10;
}
.close:hover {
  color: #00e0e0;
}

/* --- Fade In Animation --- */
@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

/* --- Button Styling --- */
.btn {
  background: #00ffff;
  color: #0d1117;
  padding: 12px 25px;
  border-radius: 8px;
  font-weight: bold;
  text-decoration: none;
  transition: 0.3s;
}
.btn:hover {
  background: #00e0e0;
  transform: translateY(-3px);
}

#inspect-lessons .btn {
  position: relative;
  z-index: 20; /* ensures it's on top */
}


#inspect-lessons {
  display: flex;
  flex-direction: column;
  justify-content: center;   /* centers vertically */
  align-items: center;       /* centers horizontally */
  min-height: 10vh;         /* takes full screen height */
  text-align: center;        /* centers text inside */
  background: linear-gradient(135deg, #0f0f0f, #1a1a1a);
  color: #31aff8;
  font-family: monospace;
  padding: 20px;
}

#inspect-lessons h2 {
  font-size: 2em;
  margin-bottom: 10px;
  color: #00d9ff;
}

#inspect-lessons p {
  font-size: 1.2em;
  max-width: 700px;
  margin-bottom: 15px;
}

#inspect-lessons ul {
  list-style: none;
  padding: 0;
  margin-bottom: 20px;
}

#inspect-lessons li {
  margin: 8px 0;
}

#inspect-lessons .btn {
  background: #00d9ff;
  color: #0f0f0f;
  padding: 12px 25px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
  transition: 0.3s;
}

#inspect-lessons .btn:hover {
  background: #008cb3;
}


.bubble-form button {
  background: linear-gradient(90deg, #3149f8, #5a88d7);
  border: none;
  color: white;
  padding: 12px;
  border-radius: 25px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.bubble-form button:hover {
  transform: scale(1.05);
  box-shadow: 0 0 15px #bc13fe;
}
html,
body {
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    min-height: 100vh;
    background-color: black;
}

.area {
    width: 200px;
    height: 500px;
    animation: swing 1s infinite ease-in-out alternate;
    transform-origin: top;
    -moz-transform-origin: top;
    -webkit-transform-origin: top;
}

.wire {
    position: relative;
    left: 98px;
    height: 200px;
    width: 4px;
    background-color: black;
}

.fixture {
    position: relative;
    background-color: grey;
    width: 16px;
    height: 20px;
    left: 92px;
}

.strip {
    position: relative;
    width: 18px;
    height: 2px;
    right: 1px;
    top: 4px;
    background-color: darkgrey;
}

.strip:nth-of-type(2) {
    top: 7px;
}

.strip:nth-of-type(3) {
    top: 10px;
}

.bulb {
    position: relative;
    width: 40px;
    height: 40px;
    left: 80px;
    bottom: 2px;
    z-index: -1;
    background-color: rgba(4 173 158);
    border-radius: 80%;
    -webkit-box-shadow: 0px 0px 300px 77px rgba(235, 209, 164, 1);
    -moz-box-shadow: 0px 0px 300px 77px rgba(235, 209, 164, 1);
    box-shadow: 0px 0px 300px 77px rgba(235, 209, 164, 1);
}

.zig {
    position: relative;
    background-color: transparent;
    width: 10px;
    height: 5px;
    border-radius: 5px / 2.5px;
    left: 14px;
    border: black solid 1px;
}

.zig:nth-of-type(2) {
    top: -3px;
}

.zig:nth-of-type(3) {
    top: -6px;
}
.light-bulb-wrapper {
  position: absolute;
  top: 0;
  left: 86%;
  transform: translateX(-50%);
  z-index: 2; /* ensures it stays visible above background */
pointer-events: none; /* also prevents it from blocking clicks */
}


@keyframes swing {
    from {
        -moz-transform: rotate(3deg);
        -webkit-transform: rotate(3deg);
        transform: rotate(3deg);
    }
    to {
        transform: rotate(-3deg);
    }
}
@media (min-width: 1024px) {
  .form-container {
    background: rgba(255, 255, 255, 0.08);
    -webkit-backdrop-filter: blur(15px);
    backdrop-filter: blur(15px);
    box-shadow: 0 0 40px rgba(49, 175, 248, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.2);
  }
}
.fadeOut {
  animation: fadeOut 0.3s ease forwards;
}

@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}




/* 📱 Responsive */
@media (max-width: 600px) {
  .bubble-buttons {
    flex-direction: row;
    gap: 20px;
  }
  .bubble-container {
    flex-direction: column;
  }
  .form-container {
    width: 90%;
  }
/* Base layout for desktops */
.flow-container {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: nowrap;
  gap: 12px;
  flex-direction: row;
  overflow-x: auto; /* enables horizontal scroll on small devices */
  scrollbar-width: none; /* hide scrollbar for cleaner look */
}

.flow-container::-webkit-scrollbar {
  display: none;
}

.flow-node {
  background: #0d1117;
  border: 2px solid #00ffff55;
  border-radius: 10px;
  padding: 15px;
  text-align: center;
  color: #00e0e0;
  font-weight: bold;
  min-width: 80px;
  transition: 0.3s;
}

.flow-node:hover {
  transform: scale(1.1);
  box-shadow: 0 0 15px #00ffffaa;
}

.arrow {
  font-size: 1.5em;
  color: #00ffff;
}

/* 📱 Responsive adjustments for mobile */
@media (max-width: 768px) {
  .flow-container {
    flex-direction: column;  /* stack vertically */
    gap: 10px;
  }

  .flow-node {
    min-width: auto;
    width: 80%;
    font-size: 1em;
    padding: 10px;
  }

  .arrow {
    transform: rotate(90deg); /* make arrows point downward */
    font-size: 1.2em;
  }

  #stage1Section h1 {
    font-size: 1.4em;
    text-align: center;
  }

  #stage1Section p.subtitle {
    font-size: 1em;
    text-align: center;
    padding: 0 10px;
  }
}