* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fafafa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header - Clean Acceleronix Brand Design */
.header {
    background: white;
    color: #214099;
    padding: 1rem 0;
    box-shadow: 0 2px 20px rgba(33, 64, 153, 0.08);
}

/* Back to home button */
.back-to-home {
    display: inline-flex;
    align-items: center;
    color: #214099;
    text-decoration: none;
    background: rgba(33, 64, 153, 0.08);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 500;
    transition: all 0.3s ease;
    margin-right: 1rem;
    border: 1px solid rgba(33, 64, 153, 0.15);
}

.back-to-home:hover {
    background: #214099;
    color: white;
    border-color: #214099;
    box-shadow: 0 4px 12px rgba(33, 64, 153, 0.2);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.logo span {
    font-size: 0.9rem;
    opacity: 0.9;
    font-weight: 300;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav a {
    color: #214099;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
}

.nav a:hover {
    background-color: rgba(0, 174, 239, 0.1);
    color: #00aeef;
    transform: translateY(-1px);
}

.nav a:after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 50%;
    width: 0;
    height: 2px;
    background: #00aeef;
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav a:hover:after {
    width: 80%;
}

/* Hero Section - Acceleronix Brand Colors */
.hero {
    background: linear-gradient(135deg, #214099 0%, #a03694 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.hero-banner {
    margin-bottom: 2rem;
}

.hero-image {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
    max-height: 300px;
    object-fit: cover;
}

.hero-content h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 3rem;
    opacity: 0.9;
    font-weight: 300;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 2rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.8;
    font-weight: 400;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h3 {
    font-size: 2.5rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 1rem;
}

/* Overview Section */
.overview {
    padding: 5rem 0;
    background: white;
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.overview-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(33, 64, 153, 0.15);
    border-left: 4px solid #667eea;
}

.overview-card h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #333;
}

.overview-card p {
    color: #666;
    line-height: 1.7;
}

/* Features Section */
.features {
    padding: 5rem 0;
    background: #f8f9fa;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 4px 12px rgba(33, 64, 153, 0.15);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0, 174, 239, 0.25);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.feature-card h4 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #333;
}

.feature-card ul {
    list-style: none;
    text-align: left;
}

.feature-card li {
    padding: 0.5rem 0;
    color: #666;
    position: relative;
    padding-left: 1.5rem;
}

.feature-card li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

/* Specifications Section */
.specifications {
    padding: 5rem 0;
    background: white;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    max-width: 800px;
    margin: 0 auto;
}

.spec-card {
    background: #f8f9fa;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 4px 12px rgba(33, 64, 153, 0.15);
}

.spec-card h4 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: #333;
    text-align: center;
    border-bottom: 2px solid #667eea;
    padding-bottom: 1rem;
}

.spec-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid #e9ecef;
}

.spec-item:last-child {
    border-bottom: none;
}

.spec-label {
    font-weight: 500;
    color: #666;
}

.spec-value {
    font-weight: 600;
    color: #333;
}

/* Challenges Section */
.challenges {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.challenges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.challenge-card {
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 4px 12px rgba(33, 64, 153, 0.15);
    text-align: center;
    transition: transform 0.3s ease;
}

.challenge-card:hover {
    transform: translateY(-3px);
}

.challenge-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.challenge-card h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #333;
}

.challenge-card p {
    color: #666;
    line-height: 1.7;
    text-align: left;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #42248a 0%, #214099 100%);
    color: white;
    padding: 3rem 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.footer-info h4,
.footer-contact h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #00aeef;
}

.footer-info p,
.footer-contact p {
    color: #ccc;
    margin-bottom: 0.5rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav {
        gap: 1rem;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .section-header h3 {
        font-size: 2rem;
    }
    
    .overview-grid,
    .features-grid,
    .challenges-grid {
        grid-template-columns: 1fr;
    }
    
    .specs-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 3rem 0;
    }
    
    .hero-content h2 {
        font-size: 1.8rem;
    }
    
    .overview,
    .features,
    .specifications,
    .challenges {
        padding: 3rem 0;
    }
    
    .feature-card,
    .overview-card,
    .spec-card,
    .challenge-card {
        padding: 1.5rem;
    }
}