.App {
  text-align: center;
}

.App-logo {
  height: 40vmin;
}

.App-header {
  background-color: #282c34;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: calc(10px + 2vmin);
  color: white;
}

.App-link {
  color: #09d3ac;
}

.grid {
  margin: 100px 0 0;
}
/* 1. Make #grid into a CSS Grid of 20×50 */
#grid {
  display: grid;
  grid-template-columns: repeat(50, 1fr);
  grid-template-rows:    repeat(20, 1fr);
  /* fill up to 90% of the smaller viewport dimension,
     so it scales down on phones but stays full‑sized on desktop */
  width: 114vmin;
  max-width: 800px;       /* never blow up too big on large screens */
  aspect-ratio: 50 / 20;  /* lock the overall box to exactly 50:20 */
  margin: 1rem auto;      /* center it under your sidebar/controls */
}

/* 2. Make each .node fill its grid cell 100% */
#grid .node {
  width: 100%;
  height: 100%;
}

/* 3. On very narrow viewports, let it expand horizontally a bit */
@media (max-width: 600px) {
  #grid {
    width: 95vw;
  }
  .info-box{
  font-size: 0.9rem;
  }
  
  #Iterations {
    /* make it full width (or nearly) and center it */
    width: 90%;
    margin: 1rem auto;
    padding: 0.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
  }

  /* shrink your logo */
  #Iterations > div > img {
    height: 60px;
    padding: 5px;
  }

  /* shrink the heading text */
  #Iterations > div > h2 {
    font-size: 1.2rem;
    text-align: center;
  }

  /* tighten up the link button */
  #Iterations a {
    padding: 0.3rem 0.6rem !important;
    font-size: 0.9rem;
  }
  
}

.node {
  outline: 1px solid rgb(175, 216, 248);
  display: inline-block;
}

.node-finish {
  background-color: red;
}

.node-start {
  background-color: green;
}

.node-visited {
  animation-name: visitedAnimation;
  animation-duration: 1.5s;
  animation-timing-function: ease-out;
  animation-delay: 0;
  animation-direction: alternate;
  animation-iteration-count: 1;
  animation-fill-mode: forwards;
  animation-play-state: running;
}

@keyframes visitedAnimation {
  0% {
    transform: scale(0.3);
    background-color: rgba(0, 0, 66, 0.75);
    border-radius: 100%;
  }

  50% {
    background-color: rgb(128, 128, 255);
  }

  75% {
    transform: scale(1.2);
    background-color: rgb(128, 128, 255);
  }

  100% {
    transform: scale(1);
    background-color: rgb(255, 128, 64);
  }
}

.node-wall {
  background-color: rgb(255, 255, 255);
}

.node-shortest-path {
  animation-name: shortestPath;
  animation-duration: 1.5s;
  animation-timing-function: ease-out;
  animation-delay: 0;
  animation-direction: alternate;
  animation-iteration-count: 1;
  animation-fill-mode: forwards;
  animation-play-state: running;
}

@keyframes shortestPath {
  0% {
    transform: scale(0.6);
    background-color: rgb(255, 254, 106);
  }

  50% {
    transform: scale(1.2);
    background-color: rgb(255, 254, 106);
  }

  100% {
    transform: scale(1);
    background-color: rgb(255, 254, 106);
  }
}




:root {
      --primary-color: #ffffff;
      --accent-color: #fe5005;
      --board-max-width: 800px;
      --blur-bg: rgba(255,255,255,0.2);
      --blur-filter: blur(10px);
      --radius: 12px;
      --input-shadow: rgba(0,0,0,0.2);
    }
    * { box-sizing: border-box; margin:0; padding:0; }
    body {
      font-family: 'Poppins', sans-serif;
      color: var(--primary-color);
      background: #000;
      overflow-x: hidden;
    }  
     #bg-video {
      position: fixed;
      top:0; left:0;
      width:100vw; height:100vh;
      object-fit: cover;
      z-index:-1;
      filter: brightness(50%);
    }
    header {
      color: white;
      text-align: center;
      padding: 1rem;
      font-size: 2rem;
      font-weight: 700;
      text-shadow: 0 0 10px rgba(0,0,0,0.5);
    }
    .controls {
      display:flex;
      flex-wrap:wrap;
      gap:1rem;
      justify-content: space-between;
      backdrop-filter: var(--blur-filter);
      background: var(--blur-bg);
      padding:1rem;
      border-radius: var(--radius);
      margin:0rem auto;
      max-width: var(--board-max-width);
      align-items: center;
      border: 1px solid rgba(255,255,255,0.4);
    }
    .controls img.logo {
      height:40px;
      border-radius:4px;
    }
    .controls .button-group {
      display:flex;
      gap:0.5rem;
      flex-wrap:wrap;
    }
    .controls button,
    .controls a.link-btn {
      display:inline-flex;
      align-items:center;
      gap:0.5rem;
      padding:0.5rem 5.5rem;
      background: var(--accent-color);
      color:#fff;
      border:none;
      border-radius: var(--radius);
      cursor:pointer;
      font-weight:500;
      text-decoration:none;
      transition:transform 0.2s;
    }
    .controls button:hover,
    .controls a.link-btn:hover {
      transform: translateY(-2px);
    }
    
    
.linkedin-button {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background-color: #0a66c2;
  color: white;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
  transition: background-color 0.3s;
  align-content: center;
}

.linkedin-button:hover {
  background-color: #004182;
}

.info-box {
  margin-top: 10px;
  width: 300px;
  max-height: var(--board-max-size);
  overflow-y: auto;
  backdrop-filter: var(--blur-filter);
  background: var(--blur-bg);
  padding: 1.4rem;
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: white;
  font-weight: 500;
}
.alert-icon {
  font-size: 1.2rem;
  color: #0d6efd; /* Bootstrap primary blue */
}


#Iterations {
		margin-top:10px;
      width: 300px;
      max-height: var(--board-max-size);
      overflow-y: auto;
      backdrop-filter: var(--blur-filter);
      background: var(--blur-bg);
      padding: 1rem;
      border-radius: var(--board-radius);
      border: 1px solid rgba(255,255,255,0.4);
      background: var(--blur-bg);
      border-radius: var(--radius);
    }