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

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

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

.header {
    background: #2c3e50;
    color: white;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-brand h1 {
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 150px 0 100px;
    text-align: center;
    margin-top: 80px;
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 300;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-button {
    background: #e74c3c;
    color: white;
    padding: 15px 30px;
    border: none;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s ease;
}

.cta-button:hover {
    background: #c0392b;
}

.tools {
    padding: 80px 0;
    background: #f8f9fa;
    min-height: 70vh;
}

.tools h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #2c3e50;
}

.category {
    margin-bottom: 3rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    overflow: hidden;
}

.category-title {
    background: #2c3e50;
    color: white;
    padding: 1.5rem 2rem;
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.tool-list {
    padding: 0;
}

.tool-item {
    display: flex;
    align-items: center;
    padding: 1.5rem 2rem;
    text-decoration: none;
    color: inherit;
    border-bottom: 1px solid #eee;
    transition: all 0.3s ease;
    position: relative;
}

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

.tool-item:hover {
    background: #f8f9fa;
    transform: translateX(5px);
}

.tool-item.disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.tool-item.disabled:hover {
    background: white;
    transform: none;
}

.tool-item:not(a) {
    cursor: pointer;
}

.tool-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: #2c3e50;
    min-width: 250px;
    margin-right: 2rem;
}

.tool-desc {
    color: #666;
    flex-grow: 1;
    line-height: 1.4;
}

.status {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
    text-transform: uppercase;
    margin-left: auto;
    white-space: nowrap;
}

.status.available {
    background: #27ae60;
    color: white;
}

.status.demo {
    background: #f39c12;
    color: white;
}

.status.progress {
    background: #e74c3c;
    color: white;
}

.footer {
    background: #1a252f;
    color: white;
    text-align: center;
    padding: 2rem 0;
}

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu {
        gap: 1rem;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .tool-name {
        min-width: 180px;
        margin-right: 1rem;
    }
    
    .nav-brand h1 {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 120px 20px 80px;
    }
    
    .hero-content h2 {
        font-size: 1.8rem;
    }
    
    .tools h2 {
        font-size: 2rem;
    }
    
    .tool-item {
        flex-direction: column;
        align-items: flex-start;
        padding: 1rem;
    }
    
    .tool-name {
        min-width: auto;
        margin-right: 0;
        margin-bottom: 0.5rem;
    }
    
    .tool-desc {
        margin-bottom: 0.5rem;
    }
    
    .status {
        margin-left: 0;
    }
}