/* main.css */

/* Define CSS Variables for Easy Maintenance */
:root {
    --bg-color: #1E1E2D;         /* Dark Navy */
    --text-color: #FFFFFF;       /* White */
    --accent-blue: #00A8E8;      /* Neon Blue */
    --accent-orange: #F39C12;    /* Bright Orange */
    --hover-orange: #FFA500;     /* Lighter Orange for hover */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --transition-speed: 0.3s;
  }
  
  /* Global Reset */
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  /* Body Styling */
  body {
    font-family: var(--font-primary);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
  }
  
  /* Header (Fixed Navigation Bar) */
  header {
    background-color: var(--bg-color);
    padding: 1.25rem 2.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: background-color var(--transition-speed);
  }
  
  .header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .logo {
    display: flex;
    align-items: center;
    font-size: 1.8rem;
    font-weight: 700;
  }
  
  .logo-icon {
    margin-right: 0.75rem;
  }
  
  .logo-text {
    color: var(--accent-orange);
    letter-spacing: 2px;
  }
  
  /* Navigation Links */
  nav ul {
    list-style: none;
    display: flex;
  }
  
  nav li {
    margin-left: 1.5rem;
  }
  
  nav a {
    text-decoration: none;
    color: var(--text-color);
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: 1px;
    transition: color var(--transition-speed), transform var(--transition-speed);
  }
  
  nav a:hover {
    color: var(--accent-blue);
    transform: translateY(-3px);
  }
  
  /* Hero Section */
  .hero {
    padding: 100px 2.5rem 5rem 2.5rem;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-color), #2B2B3A);
    background-size: cover;
    background-position: center;
    margin-top: 80px; /* Offset fixed header */
  }
  
  .hero h1 {
    font-size: 4rem;
    margin-bottom: 1.25rem;
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 3px;
  }
  
  .hero p {
    font-size: 1.4rem;
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 300;
  }
  
  .cta-button {
    background-color: var(--accent-orange);
    color: var(--bg-color);
    border: none;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border-radius: 50px;
    cursor: pointer;
    transition: background-color var(--transition-speed), transform var(--transition-speed);
    font-weight: 600;
    text-decoration: none;
  }
  
  .cta-button:hover {
    background-color: var(--hover-orange);
    transform: translateY(-3px);
  }
  
  /* Section Common Styling */
  .section {
    padding: 6rem 2.5rem;
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .section h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--accent-blue);
    text-transform: uppercase;
  }
  
  .section p {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 300;
  }
  
  /* Features (How It Works) */
  .features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
  }
  
  .feature-item {
    background-color: #2B2B3A;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    width: 250px;
    text-align: center;
    transition: transform var(--transition-speed);
  }
  
  .feature-item h3 {
    font-size: 1.5rem;
    color: var(--accent-blue);
    margin-bottom: 1rem;
  }
  
  .feature-item p {
    font-size: 1rem;
    color: var(--text-color);
  }
  
  .feature-item:hover {
    transform: translateY(-5px);
  }
  
  /* Featured Challenges Section */
  .challenge-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
  }
  
  .challenge-item {
    background-color: #2B2B3A;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    text-align: center;
  }
  
  .challenge-item h3 {
    color: var(--accent-blue);
  }
  
  .challenge-item a {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.75rem 1.5rem;
    background-color: var(--accent-blue);
    color: var(--bg-color);
    border-radius: 25px;
    text-decoration: none;
    transition: background-color var(--transition-speed);
  }
  
  .challenge-item a:hover {
    background-color: var(--hover-orange);
  }
  
  /* Leaderboard Section */
  .leaderboard-list {
    list-style: none;
    padding: 0;
    margin-top: 2rem;
  }
  
  .leaderboard-list li {
    background-color: #2B2B3A;
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1rem;
    font-size: 1.2rem;
  }
  
  .leaderboard-list li:nth-child(odd) {
    background-color: #333;
  }
  
  /* Community Projects Section */
  .community-projects {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
  }
  
  .project-item {
    background-color: #2B2B3A;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    text-align: center;
  }
  
  .project-item h3 {
    color: var(--accent-blue);
    font-size: 1.5rem;
    margin-bottom: 1rem;
  }
  
  .project-item p {
    color: var(--text-color);
    font-size: 1rem;
  }
  
  /* Footer Styling */
  footer {
    background-color: var(--bg-color);
    padding: 2rem 2.5rem;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 4rem;
  }
  
  footer p {
    font-size: 1rem;
  }
  
  footer a {
    text-decoration: none;
    color: var(--accent-blue);
  }
  
  /* Simple Fade In Animation */
  @keyframes fadeInUp {
    from {
      opacity: 0;
      transform: translateY(20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  .hero h1, .hero p, .cta-button, .section {
    animation: fadeInUp 0.8s ease-out;
  }
  /* In a separate CSS file or within <style> tags */
#ads {
    margin-top: 20px;
    padding: 10px;
    background-color: #f7f7f7;
    border: 1px solid #ddd;
}

#ad {
    margin-bottom: 15px;
    padding: 10px;
    background-color: #fff;
    border: 1px solid #ccc;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

#ad p {
    margin: 0;
    font-weight: bold;
}