/* style.css */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    color: #333;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 20px;
}

.container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.header-container {
    padding: 30px 20px 20px;
    text-align: center;
    background: linear-gradient(to bottom, #ffffff 0%, #f8f9fa 100%);
    border-bottom: 1px solid #e9ecef;
}

.logo {
    font-size: 4.5rem;
    font-weight: 800;
    color: #2c3e50;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 10px;
    text-shadow: 3px 3px 0 rgba(44, 62, 80, 0.1);
    position: relative;
    display: inline-block;
}

.logo::after {
    content: "";
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: #3498db;
    border-radius: 2px;
}

.subtitle {
    font-size: 1.4rem;
    color: #7f8c8d;
    margin-bottom: 30px;
    font-weight: 300;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.4;
}

.nav-menu {
    display: flex;
    justify-content: center;
    list-style: none;
    padding: 0;
    margin: 0;
    background: #ffffff;
    border-top: 1px solid #e9ecef;
    border-bottom: 1px solid #e9ecef;
}

.nav-menu li {
    position: relative;
}

.nav-menu li:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    height: 20px;
    width: 1px;
    background: #e9ecef;
}

.nav-menu li a {
    display: block;
    padding: 20px 30px;
    color: #2c3e50;
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-menu li a:hover {
    color: #3498db;
    background: #f8f9fa;
}

.nav-menu li a::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: #3498db;
    transition: width 0.3s ease;
}

.nav-menu li a:hover::after {
    width: 70%;
}

.nav-menu li.dropdown > a::after {
    content: " ▼";
    font-size: 0.7em;
    display: inline-block;
    margin-left: 5px;
}

.main-content {
    padding: 50px 40px;
    text-align: center;
}

.content-title {
    color: #2c3e50;
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.content-text {
    color: #555;
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto 30px;
    line-height: 1.8;
}

.features {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.feature {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 30px;
    width: 250px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.feature:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.feature i {
    font-size: 3rem;
    color: #3498db;
    margin-bottom: 20px;
}

.feature h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.feature p {
    color: #7f8c8d;
    font-size: 0.95rem;
    line-height: 1.6;
}

.footer {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 30px;
    text-align: center;
    margin-top: auto;
    border-radius: 0 0 15px 15px;
}

.footer p {
    margin: 10px 0;
    font-size: 1rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 20px 0;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: #3498db;
    transform: translateY(-3px);
}

@media (max-width: 768px) {
    .logo {
        font-size: 3.5rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
    }
    
    .nav-menu li a {
        padding: 15px 20px;
        font-size: 1rem;
    }
    
    .features {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 2.8rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .nav-menu {
        flex-direction: column;
    }
    
    .nav-menu li:not(:last-child)::after {
        display: none;
    }
    
    .nav-menu li {
        border-bottom: 1px solid #e9ecef;
    }
    
    .nav-menu li:last-child {
        border-bottom: none;
    }
}