:root {
    --primary-color: #6366f1;
    --secondary-color: #4f46e5;
    --background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    --text-primary: #1e293b;
    --text-secondary: #64748b;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.nav-item[target="_blank"]::after {
    content: "\f08e";
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    margin-left: 0.5rem;
    vertical-align: middle;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.nav-item {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-item:hover {
    color: var(--primary-color);
}

.main-card {
    background: white;
    border-radius: 1.5rem;
    padding: 3rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

.title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

.input-group {
    display: flex;
    gap: 1rem;
    max-width: 800px;
    margin: 0 auto;
}

input[type="text"] {
    flex: 1;
    padding: 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 0.75rem;
    font-size: 1rem;
    transition: all 0.3s ease;
}

input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.accelerate-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0.75rem;
    cursor: pointer;
    font-size: 1.2rem;
    letter-spacing: 0.05em;
    padding: 1.2rem 2.5rem;
    font-weight: 700;
    transition: background-color 0.3s ease, transform 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    position: relative;
}

.accelerate-btn:hover {
    background: var(--secondary-color);
    transform: translateY(-1px);
}

.feature-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    background: #f8fafc;
    border-radius: 1rem;
    transition: transform 0.3s ease;
}

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

.feature-card i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.instructions {
    margin-top: 4rem;
    background: white;
    padding: 2rem;
    border-radius: 1rem;
}

.example-section {
    margin: 1.5rem 0;
    background: #f8fafc;
    border-radius: 0.75rem;
    padding: 1.5rem;
}

.example-section h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.example-code {
    background: #ffffff;
    padding: 1rem;
    border-radius: 0.5rem;
    border: 1px solid #e2e8f0;
    overflow-x: auto;
}

.example-code code {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.9rem;
    color: var(--text-primary);
    white-space: pre-wrap;
    line-height: 1.5;
}

.example {
    display: block;
    align-items: center;
    gap: 1rem;
    background: #f8fafc;
    padding: 1rem;
    border-radius: 0.5rem;
    margin-top: 1rem;
    overflow-x: auto;
}

.arrow {
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .input-group {
        flex-direction: column;
    }
    
    .accelerate-btn {
        justify-content: center;
    }
    
    .header {
        flex-direction: column;
        gap: 1rem;
    }
}