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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
}

header {
    background: #fff;
    padding: 1.5rem 5%;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

#kelbi-start {
    color: #fca5a5
}

#dynamic-text {
    display: inline-block;
}

.cursor {
    display: inline-block;
    width: 20px;
    height: 0.3em;
    background-color: #fff;
    margin-left: 2px;
    animation: blink 1s infinite;
    vertical-align: baseline;
}

@keyframes blink {
    0%, 49% {
         opacity: 1;
    }
    50%, 100% {
        opacity: 0;
    }
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #2c3e50;
}

nav {
    margin-top: 1rem;
}

nav a {
    margin-right: 2rem;
    text-decoration: none;
    color: #555;
    font-weight: 500;
    transition: color 0.3s;
}

nav a:hover {
    color: #dc2626;
}

.hero {
    background: linear-gradient(135deg, #dc2626 0%, #501b30 100%);
    color: white;
    padding: 6rem 5%;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: white;
    color: #dc2626;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.section {
    padding: 4rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.section h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: #2c3e50;
}

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

.feature-card {
    padding: 2rem;
    background: #f8f9fa;
    border-radius: 8px;
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.feature-card h3 {
    color: #dc2626;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.about {
    background: #f8f9fa;
}

footer {
    background: #2c3e50;
    color: white;
    padding: 3rem 5%;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    color: #ef4444;
}

.footer-section p, .footer-section a {
    color: #bdc3c7;
    text-decoration: none;
    display: block;
    margin-bottom: 0.5rem;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #34495e;
    color: #95a5a6;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }

    nav a {
        margin-right: 1rem;
    }
}