:root {
    --primary: #52BD94;
    /* Square Green-ish */
    --primary-glow: rgba(82, 189, 148, 0.4);
    --accent: #8B5CF6;
    /* AI Purple */
    --bg: #0F1116;
    --surface: #1A1D26;
    --text: #F3F4F6;
    --text-muted: #9CA3AF;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

/* --- Header --- */
header {
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    background: rgba(15, 17, 22, 0.8);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

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

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

.cta-button {
    background: var(--primary);
    color: #000;
    padding: 0.6rem 1.5rem;
    border-radius: 99px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px var(--primary-glow);
}

/* --- Hero Section --- */
.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 2rem;
    position: relative;
    z-index: 10;
}

.hero h1 {
    font-size: 4.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(180deg, #fff 0%, #aaa 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 600px;
    margin-bottom: 2.5rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    margin-top: 4rem;
}

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--primary);
}

.stat-item span {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Background Effects */
.glow {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.2) 0%, rgba(15, 17, 22, 0) 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: -1;
    pointer-events: none;
}

/* --- Usage Section --- */
.features {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--surface);
    padding: 2.5rem;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.card h3 {
    margin: 1.5rem 0 1rem;
    font-size: 1.5rem;
}

.card p {
    color: var(--text-muted);
}

.icon {
    width: 50px;
    height: 50px;
    background: rgba(82, 189, 148, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary);
}

.hero div {
    display: flex;
    gap: 1rem;
}

.github-btn {
    color: var(--text);
    padding: 0.6rem 1.5rem;
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 99px;
    font-weight: 500;
    transition: all 0.2s;
}

.github-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--text);
}

/* --- Footer --- */
footer {
    padding: 4rem 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
    color: var(--text-muted);
}

footer p:last-child {
    margin-top: 1rem;
    font-size: 0.8rem;
    opacity: 0.6;
}

.footer-links {
    margin-top: 1rem;
    font-size: 0.9rem;
}

.footer-link {
    color: var(--text-muted);
    text-decoration: none;
    margin: 0 10px;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 3rem;
    }

    .nav-links {
        display: none;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
        margin-top: 2rem;
    }
}