body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 100%);
    color: #f0f0f0;
    line-height: 1.6;
}

header {
    background: linear-gradient(135deg, #16213e 0%, #0f3460 100%);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1em 2em;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5em;
    font-weight: bold;
    color: #f0f0f0;
}

nav ul {
    list-style: none;
    display: flex;
    margin: 0;
    padding: 0;
}

nav li {
    margin-left: 2em;
}

nav a {
    text-decoration: none;
    color: #f0f0f0;
    font-weight: 500;
    transition: color 0.3s;
}

nav a:hover {
    color: #e74c3c;
}

.hero {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 50%, #a93226 100%);
    color: white;
    padding: 8em 2em 4em;
    text-align: center;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content h1 {
    font-size: 3em;
    margin: 0 0 0.5em 0;
    font-weight: bold;
}

.hero-content p {
    font-size: 1.2em;
    margin: 0 0 2em 0;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    background: #2c3e50;
    color: #f0f0f0;
    padding: 1em 2em;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: background 0.3s;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.cta-button:hover {
    background: #34495e;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4em 2em;
}

.about-section h2 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 2em;
    color: #f0f0f0;
}

.about-content {
    display: flex;
    gap: 3em;
    align-items: center;
}

.about-text {
    flex: 1;
}

.about-text h3 {
    color: #f0f0f0;
    margin-top: 2em;
    margin-bottom: 0.5em;
}

.about-text ul {
    margin: 1em 0;
    padding-left: 1.5em;
}

.about-text li {
    margin-bottom: 0.5em;
}

.about-image {
    flex: 1;
    text-align: center;
}

.placeholder-image {
    background: #2c3e50;
    padding: 4em;
    border-radius: 10px;
    font-size: 1.5em;
    color: #f0f0f0;
}

.features-section {
    background: #1a1a1a;
    padding: 4em 0;
    margin: 4em 0;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.features-section h2 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 2em;
    color: #f0f0f0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2em;
    padding: 0 2em;
}

.feature-card {
    background: #2c3e50;
    padding: 2em;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card h3 {
    color: #f0f0f0;
    margin-bottom: 0.5em;
}

footer {
    background: linear-gradient(135deg, #16213e 0%, #0f3460 100%);
    color: white;
    text-align: center;
    padding: 2em;
    margin-top: 4em;
}

footer a {
    color: #e74c3c;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    nav {
        flex-direction: column;
        padding: 1em;
    }
    nav ul {
        margin-top: 1em;
    }
    nav li {
        margin-left: 1em;
        margin-right: 1em;
    }
    .hero {
        padding: 6em 1em 2em;
    }
    .hero-content h1 {
        font-size: 2em;
    }
    .about-content {
        flex-direction: column;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
}