*{
    margin:0;
    padding:0;
    box-sizing:border-box;
  }
  
  html{
    scroll-behavior:smooth;
  }
  
  body{
    font-family:'Inter',sans-serif;
    background:#eef6fb;
    color:#111827;
    overflow-x:hidden;
  }
  
  /* PARTICLES */
  
  .particles::before,
  .particles::after{
    content:"";
    position:fixed;
    width:400px;
    height:400px;
    background:rgba(0,255,255,0.15);
    border-radius:50%;
    filter:blur(100px);
    z-index:-1;
    animation:float 10s infinite alternate;
  }
  
  .particles::before{
    top:-100px;
    left:-100px;
  }
  
  .particles::after{
    bottom:-100px;
    right:-100px;
  }
  
  @keyframes float{
    from{
      transform:translateY(0);
    }
    to{
      transform:translateY(50px);
    }
  }
  
  nav{
    position:sticky;
    top:0;
    z-index:1000;
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:20px 8%;
    backdrop-filter:blur(20px);
    background:rgba(255,255,255,0.7);
  }
  
  .logo{
    display:flex;
    align-items:center;
    gap:10px;
    font-weight:800;
  }
  
  .logo-box{
    width:40px;
    height:40px;
    border-radius:12px;
    display:flex;
    justify-content:center;
    align-items:center;
    background:linear-gradient(135deg,#00c6ff,#0072ff);
    color:white;
  }
  
  .blue{
    color:#0072ff;
  }
  
  .nav-links{
    display:flex;
    gap:20px;
    list-style:none;
  }
  
  .nav-links a{
    text-decoration:none;
    color:#111827;
    font-weight:600;
  }
  
  .nav-buttons{
    display:flex;
    gap:10px;
    align-items:center;
  }
  
  #languageSwitcher,
  #themeToggle,
  .try-btn,
  .secondary-btn{
    border:none;
    padding:12px 18px;
    border-radius:14px;
    cursor:pointer;
    font-weight:700;
  }
  
  .try-btn{
    background:linear-gradient(135deg,#00c6ff,#0072ff);
    color:white;
  }
  
  .secondary-btn{
    background:white;
  }
  
  .hero{
    min-height:90vh;
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:80px 8%;
    gap:50px;
  }
  
  .hero-left{
    flex:1;
  }
  
  .hero h1{
    font-size:70px;
    line-height:1;
    margin:20px 0;
  }
  
  .hero h1 span{
    color:#0072ff;
  }
  
  .hero-text{
    font-size:20px;
    line-height:1.8;
  }
  
  .hero-buttons{
    display:flex;
    gap:20px;
    margin-top:30px;
  }
  
  .hero-right{
    flex:1;
    display:flex;
    justify-content:center;
    position:relative;
  }
  
  .hero-circle{
    width:450px;
    height:450px;
    border-radius:50%;
    background:linear-gradient(135deg,#00c6ff,#0072ff);
    filter:blur(20px);
    opacity:0.7;
  }
  
  .ai-orb{
    position:absolute;
    width:120px;
    height:120px;
    background:white;
    border-radius:50%;
    display:flex;
    justify-content:center;
    align-items:center;
    font-size:40px;
    top:50%;
    left:50%;
    transform:translate(-50%,-50%);
  }
  
  section{
    padding:100px 8%;
  }
  
  .section-title{
    text-align:center;
    margin-bottom:60px;
  }
  
  .section-title h2{
    font-size:45px;
    margin-bottom:10px;
  }
  
  .problem-grid,
  .feature-grid,
  .impact-grid,
  .resource-grid,
  .responsible-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
    gap:25px;
  }
  
  .problem-card,
  .feature-card,
  .impact-card,
  .resource-card,
  .responsible-card{
    background:rgba(255,255,255,0.7);
    backdrop-filter:blur(20px);
    border-radius:24px;
    padding:30px;
    transition:0.3s;
  }
  
  .problem-card:hover,
  .feature-card:hover,
  .impact-card:hover,
  .resource-card:hover,
  .responsible-card:hover{
    transform:translateY(-8px);
  }
  
  .feature-card i{
    font-size:40px;
    color:#0072ff;
    margin-bottom:20px;
  }
  
  .chat-modal{
    position:fixed;
    top:0;
    left:0;
    width:100%;
    height:100%;
    background:rgba(0,0,0,0.6);
    display:none;
    justify-content:center;
    align-items:center;
    z-index:9999;
  }
  
  .chat-container{
    width:95%;
    max-width:700px;
    height:85vh;
    background:rgba(255,255,255,0.8);
    backdrop-filter:blur(20px);
    border-radius:30px;
    display:flex;
    flex-direction:column;
    overflow:hidden;
    position:relative;
  }
  
  .chat-header{
    padding:20px;
    display:flex;
    justify-content:space-between;
    align-items:center;
    border-bottom:1px solid rgba(255,255,255,0.2);
  }
  
  .chat-actions{
    display:flex;
    align-items:center;
    gap:10px;
  }
  
  .samples{
    padding:20px;
    display:flex;
    gap:10px;
    flex-wrap:wrap;
  }
  
  .sample-question{
    border:none;
    padding:10px 15px;
    border-radius:20px;
    cursor:pointer;
    background:#eef6fb;
  }
  
  .chat-box{
    flex:1;
    padding:20px;
    overflow-y:auto;
    display:flex;
    flex-direction:column;
    gap:20px;
  }
  
  .user-message{
    align-self:flex-end;
    background:#0072ff;
    color:white;
    padding:15px;
    border-radius:20px;
    max-width:80%;
  }
  
  .bot-message{
    align-self:flex-start;
    background:white;
    padding:20px;
    border-radius:20px;
    max-width:80%;
  }
  
  .tag{
    display:inline-block;
    padding:6px 12px;
    border-radius:20px;
    font-size:12px;
    margin-bottom:10px;
    font-weight:700;
  }
  
  .green{
    background:#d1fae5;
    color:#065f46;
  }
  
  .yellow{
    background:#fef3c7;
    color:#92400e;
  }
  
  .red{
    background:#fee2e2;
    color:#991b1b;
  }
  
  .input-area{
    display:flex;
    padding:20px;
    gap:10px;
  }
  
  .input-area input{
    flex:1;
    border:none;
    padding:15px;
    border-radius:20px;
  }
  
  #sendBtn{
    border:none;
    padding:15px 20px;
    border-radius:20px;
    background:#0072ff;
    color:white;
    cursor:pointer;
  }
  
  .typing{
    display:flex;
    gap:6px;
  }
  
  .typing span{
    width:10px;
    height:10px;
    border-radius:50%;
    background:#0072ff;
    animation:bounce 1s infinite;
  }
  
  .typing span:nth-child(2){
    animation-delay:0.2s;
  }
  
  .typing span:nth-child(3){
    animation-delay:0.4s;
  }
  
  @keyframes bounce{
    0%,100%{
      transform:translateY(0);
    }
    50%{
      transform:translateY(-8px);
    }
  }
  
  footer{
    padding:40px;
    text-align:center;
  }
  
  @media(max-width:900px){
  
    .hero{
      flex-direction:column;
      text-align:center;
    }
  
    .hero-buttons{
      justify-content:center;
    }
  
    .hero h1{
      font-size:50px;
    }
  
    nav{
      flex-direction:column;
      gap:20px;
    }
  
  }
  
  @media(max-width:600px){
  
    .nav-links{
      flex-wrap:wrap;
      justify-content:center;
    }
  
    .hero-circle{
      width:300px;
      height:300px;
    }
  
  }

  /* FIX DARK MODE TEXT */

body.dark-mode .hero-text,
body.dark-mode .section-title h2,
body.dark-mode .section-title p,
body.dark-mode .impact-intro p,
body.dark-mode .resource-intro p,
body.dark-mode .impact-card p,
body.dark-mode .resource-card p,
body.dark-mode .responsible-card p,
body.dark-mode .problem-card p,
body.dark-mode .feature-card p,
body.dark-mode footer p,
body.dark-mode footer a,
body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h3 {
  color: white !important;
}

/* IMPACT EXTRA */

.impact-intro,
.resource-intro{
  max-width: 900px;
  margin: auto;
  text-align: center;
  margin-bottom: 50px;
}

.impact-intro p,
.resource-intro p{
  margin-bottom: 18px;
  line-height: 1.8;
  color: #334155;
  font-size: 1.05rem;
  font-weight: 400;
}

body.dark-mode .impact-intro p,
body.dark-mode .resource-intro p{
  color: #dbeafe;
}

.impact-bottom{
  display: grid;
  grid-template-columns: repeat(auto-fit,minmax(300px,1fr));
  gap: 25px;
  margin-top: 50px;
}

.impact-highlight{
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  padding: 25px;
  border-radius: 22px;
  backdrop-filter: blur(14px);
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.impact-highlight i{
  font-size: 28px;
  color: cyan;
}

.impact-highlight p{
    color: #334155;
    line-height: 1.7;
    font-weight: 400;
  }
  body.dark-mode .impact-highlight p{
    color: #dbeafe;
  }

/* RESOURCE HOVER */

.resource-card{
  transition: 0.35s ease;
}

.resource-card:hover{
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 0 35px rgba(0,255,255,0.25);
}
body.dark-mode{
    background: #07111f;
    color: white;
  }
  
  body.dark-mode nav,
  body.dark-mode .feature-card,
  body.dark-mode .problem-card,
  body.dark-mode .impact-card,
  body.dark-mode .resource-card,
  body.dark-mode .responsible-card,
  body.dark-mode .chat-container,
  body.dark-mode .bot-message,
  body.dark-mode .sample-question,
  body.dark-mode .input-area input{
    background: rgba(16,32,51,0.95);
    color: white;
  }
  .resource-link{
    display: inline-block;
    margin-top: 18px;
    color: cyan;
    text-decoration: none;
    font-weight: 600;
    transition: 0.3s;
  }
  
  .resource-link:hover{
    transform: translateX(5px);
    color: white;
  }
  .resource-card p{
    color: #475569;
    line-height: 1.7;
  }
  
  body.dark-mode .resource-card p{
    color: #dbeafe;
  }