* { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; line-height: 1.6; color: #333; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        header { background: #b3bace; color: white; padding: 2rem 0; text-align: center; }
        /* Global Styles */
:root {
  --text-primary: #000000;
  --text-secondary: #36414d;
  --nav-bg: #1e4cc9;
  --body-bg: transparent;
  --card-bg: #e4edff;
}

:root[data-theme="dark"] {
  --text-primary: #ffffff;
  --text-secondary: #4f6986;
  --nav-bg: #0f172a;
  --body-bg: #000000;
  --card-bg: #1a1a1a;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { 
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; 
  line-height: 1.6; 
  color: var(--text-primary);
  background-color: var(--body-bg);
  transition: color 0.3s, background-color 0.3s;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Navigation */
nav { background: var(--nav-bg); padding: 1rem 0; position: sticky; top: 0; z-index: 100; }
.nav-container { display: flex; justify-content: space-between; align-items: center; }
.nav-left { display: flex; align-items: center; gap: 1em; justify-content: space-evenly;}
.nav-right { display: flex; align-items: center; gap: 1rem; }
.logo { color: white; font-size: 1.2rem; font-weight: bold; text-decoration: none; }
.nav-link { color: white; text-decoration: none; transition: color 0.3s; }
.nav-link:hover { color: #667eea; }
.theme-toggle { background: none; border: none; color: white; font-size: 1.2rem; cursor: pointer; padding: 0.5rem; border-radius: 4px; transition: background-color 0.3s; }
.theme-toggle:hover { background-color: rgba(255,255,255,0.1); }
.github-link { color: white; font-size: 1.2rem; transition: color 0.3s; }
.github-link:hover { color: #667eea; }
.search-container { display: flex; max-width: 400px; }
.search-input { flex: 1; padding: 0.5rem; border: none; border-radius: 4px 0 0 4px; outline: none; }
.search-btn { background: #1e3a8a; color: white; border: none; padding: 0.5rem 1rem; border-radius: 0 4px 4px 0; cursor: pointer; }
.search-btn:hover { background: #1e40af; }
.hamburger { display: none; background: none; border: none; color: white; font-size: 1.5rem; cursor: pointer; }
.nav-links { display: none; list-style: none; margin: 0; }

/* Header */
header { background: var(--nav-bg); color: white; padding: 2rem 0; text-align: center; }
h1 { font-size: 3rem; margin-bottom: 2rem; }
.subtitle { font-size: 1.2rem; opacity: 0.9; }
/* logo */
img.logo{ width: 4rem; height:4rem; }

/* Hero Section */
.hero { padding: 4rem 0; text-align: center; }
.hero h2 { font-size: 2.5rem; margin-bottom: 1rem; color: var(--text-primary); }
.hero-why h3{ margin-bottom: 1.3rem; color: #1e40af;}
.hero p { font-size: 1.1rem; color: var(--text-secondary); margin-bottom: 2rem; }
.hero-why { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem;  }
.stat { text-align: center; }
.stat-number { display: block; font-size: 1rem; font-weight: bold; color: #1e3a8a; }
.stat-label { font-size: 1rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.5px; }
.hero-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-block; background: #1e3a8a; color: white; padding: 12px 30px; text-decoration: none; border-radius: 5px; font-weight: 500; transition: background 0.3s; }
.btn:hover { background: #1e40af; }


/* about page*/
.about-hero { padding: 4rem 0; text-align: center;}
.about-hero h2 { font-size: 2.5rem; margin-bottom: 1rem; color: var(--nav-bg); }
.about-hero h3{ margin-bottom: 1.3rem; color: #1e40af;}
.about-hero p { font-size: 1.1rem; color: var(--text-secondary); margin-bottom: 2rem; }
.about-hero-wrap > .abh-left , .abh-right{ height: auto; width: 50vw; justify-content: space-evenly;}
.about-hero-wrap .abh-left{margin-top: 3rem;}
.about-hero-wrap .abh-right> img{width: 80%; height:80% ;margin-top: 1.5rem; }
.about-hero-wrap{ display: flex; gap:2rem; justify-content: center;}
.about-hero-wrap .abh-left em{font-size: 1.5rem; margin-bottom: 1rem; color: var(--nav-bg); }

/* Features Section */
.features { padding: 4rem 0; }
.features h2 { text-align: center; margin-bottom: 3rem; font-size: 2rem; color: var(--text-primary); }
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.feature { text-align: center; padding: 2rem; background: var(--card-bg); border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.1);  transition: transform 0.8s ease, background-color 0.8s ease;}
.feature h3 { margin-bottom: 1rem; color: var(--text-primary); }

/*features animation*/

.feature:hover { transform: translateY(10px); background-color: #03267762;}
/* Charts Section */
.charts { padding: 4rem 0;}
.charts h2 { text-align: center; margin-bottom: 3rem; font-size: 2rem; color: var(--text-primary); }
.charts-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem;}
.chart-card { background: var(--card-bg); padding: 2rem; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.1);}
.chart-card img{display: block; margin: 0 auto 1.5rem; width: 100px; height: 100px; object-fit: contain;}
.chart-card h3 { color: var(--text-primary); margin-bottom: 1rem; text-align: center; }
.chart-card p { color: var(--text-secondary); margin-bottom: 1.5rem; text-align: center;}
.chart-links { display: flex; gap: 1rem; justify-content: center;}
.btn-small { padding: 8px 16px; text-decoration: none; border-radius: 4px; font-size: 0.9rem; transition: all 0.3s; }
.btn-small:first-child { background: #1e3a8a; color: white; }
.btn-small:first-child:hover { background: #1e40af; }
.btn-small.github { background: #24292e; color: white; padding: 8px 12px; display: flex; align-items: center; }
.btn-small.github:hover { background: #1a1e22; }
.view-all-container { text-align: center; margin-top: 3rem; }

/* Getting Started Section */
.getting-started { padding: 4rem 0; }
.getting-started h2 { text-align: center; margin-bottom: 3rem; font-size: 2rem; color: var(--text-primary); }
.steps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.step { text-align: center; padding: 2rem; }
.step-number { width: 60px; height: 60px; background: #1e3a8a; color: white; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; font-weight: bold; margin: 0 auto 1rem; }
.step h3 { margin-bottom: 1rem; color: var(--text-primary); }
.step p { color: var(--text-secondary); margin-bottom: 1.5rem; }
.step-action { margin-top: 1rem; }
.step-action pre { background: var(--card-bg); padding: 1rem; border-radius: 4px; border: 1px solid #ddd; margin-bottom: 0.5rem; overflow-x: auto; }
.step-action code { font-family: monospace; color: var(--text-primary); }
.copy-btn { background: #1e3a8a; color: white; border: none; padding: 0.5rem 1rem; border-radius: 4px; cursor: pointer; font-size: 0.9rem; }
.copy-btn:hover { background: #1e40af; }

/* Footer */
footer { background: var(--nav-bg); color: white; padding: 3rem 0 1rem; }
.footer-content { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 2rem; margin-bottom: 2rem; }
.footer-section h4 { margin-bottom: 1rem; font-size: 1.1rem; }
.footer-section ul { list-style: none; font-size: 0.8rem;}
.footer-section li { margin-bottom: 0.5rem; }
.footer-section a { color: #e5e7eb; text-decoration: none; transition: color 0.3s; }
.footer-section a:hover { color: white; }
.footer-bottom { text-align: center; padding-top: 2rem; border-top: 1px solid #2563eb; }
.footer-bottom p { color: #e5e7eb; }

/* Mobile Responsive */
@media (max-width: 720px) {
  .nav-left { gap: 1rem; }
  .nav-link { display: none; }
  .hamburger { display: block; }
  .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--nav-bg); flex-direction: column; padding: 1rem; gap: 1rem; }
  .nav-links.active { display: flex; }
  .nav-links a { color: white; text-decoration: none; transition: color 0.3s; }
  .nav-links a:hover { color: #667eea; }
  .search-container { max-width: 150px; }
  .search-input { display: none; }
  .search-btn { border-radius: 4px; }
  .hero-stats { gap: 2rem; }
  .stat-number { font-size: 1.5rem; }
  .hero-buttons { flex-direction: column; align-items: center; }
}

        h1 { font-size: 3rem; margin-bottom: 1rem; }
        .subtitle { font-size: 1.2rem; opacity: 0.9; }
        .hero { padding: 4rem 0; text-align: center; background: #f8f9fa; }
        .hero h2 { font-size: 2.5rem; margin-bottom: 1rem; color: #2c3e50; }
        .hero p { font-size: 1.1rem; color: #6c757d; margin-bottom: 2rem; }
        .hero-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
        .btn { display: inline-block; background: #1e3a8a; color: white; padding: 12px 30px; text-decoration: none; border-radius: 5px; font-weight: 500; transition: background 0.3s; }
        .btn:hover { background: #1e40af; }
        .features { padding: 4rem 0; }
        .features h2 { text-align: center; margin-bottom: 3rem; font-size: 2rem; }
        .feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
        .feature { text-align: center; padding: 2rem; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
        .feature h3 { margin-bottom: 1rem; color: var(--text-primary); }