:root {
    --primary-color: #6c5ce7;
    --secondary-color: #a29bfe;
    --accent-color: #00cec9;
    --bg-color: #1e272e;
    --text-color: #d2dae2;
    --code-bg: #2d3436;
    --header-bg: #0c1013;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background-color: var(--header-bg);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.logo span {
    color: var(--text-color);
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 20px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Hero Section */
.hero {
    padding: 80px 0;
    text-align: center;
    background: radial-gradient(circle at center, #2d3436 0%, var(--bg-color) 70%);
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: #fff;
}

.hero p {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto 30px;
    color: #b2bec3;
}

.cta-button {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: transform 0.2s, background-color 0.2s;
}

.cta-button:hover {
    background-color: #5849be;
    transform: translateY(-2px);
}

.hero-image {
    max-width: 90%;
    margin-top: 50px;
    border-radius: 10px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.4);
    border: 1px solid rgba(255,255,255,0.1);
    transition: transform 0.3s;
    cursor: pointer;
}

.hero-image:hover {
    transform: scale(1.02);
}

/* Modal */
.image-modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.9);
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.image-modal.show {
    opacity: 1;
}

.modal-content {
    margin: auto;
    display: block;
    max-width: 95%;
    max-height: 95vh;
    border-radius: 4px;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
    animation: zoom 0.3s;
}

@keyframes zoom {
    from {transform: scale(0.9)}
    to {transform: scale(1)}
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
    z-index: 2001;
}

.close-modal:hover,
.close-modal:focus {
    color: var(--primary-color);
    text-decoration: none;
    cursor: pointer;
}

/* Sections */
section {
    padding: 60px 0;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 40px;
    text-align: center;
    color: #fff;
    position: relative;
}

h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--primary-color);
    margin: 10px auto 0;
    border-radius: 2px;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

/* Architecture / How it Works */
.flow-diagram {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    margin: 40px 0;
    text-align: center;
}

.flow-step {
    background: var(--code-bg);
    padding: 20px;
    border-radius: 8px;
    width: 200px;
    position: relative;
}

.flow-arrow {
    font-size: 2rem;
    color: var(--accent-color);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--code-bg);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

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

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    display: block;
}

/* Usage / Code Blocks */
code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    background: rgba(255,255,255,0.1);
    padding: 2px 5px;
    border-radius: 3px;
    color: var(--accent-color);
}

pre {
    background: var(--code-bg);
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 20px;
    border: 1px solid rgba(255,255,255,0.05);
}

pre code {
    background: none;
    padding: 0;
    color: #d2dae2;
}

.command-list {
    display: grid;
    gap: 20px;
}

.command-item {
    background: rgba(0,0,0,0.2);
    padding: 20px;
    border-left: 4px solid var(--accent-color);
}

/* Footer */
footer {
    background-color: var(--header-bg);
    padding: 40px 0;
    text-align: center;
    margin-top: 60px;
    color: #636e72;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none; /* Simplification for basics */
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .flow-diagram {
        flex-direction: column;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
    }
}