/* --- CSS Custom Properties (Variables) --- */
:root {
    --primary-color: #6a11cb;
    --secondary-color: #2575fc;
    --background-color: #121212;
    --surface-color: #1e1e1e;
    --text-color: #ffffff;
    --text-muted-color: #a0a0a0;
    --font-family: 'Poppins', sans-serif;
}

/* --- General Styles & Resets --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* --- Header & Navigation --- */
.main-header {
    background-color: rgba(30, 30, 30, 0.8);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--text-color);
}

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-muted-color);
    font-weight: 600;
    transition: color 0.3s ease;
}

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

/* --- Call-to-Action Buttons --- */
.cta-button {
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    color: var(--text-color);
    padding: 0.5rem 1.2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.3s ease;
}

.cta-button:hover {
    transform: scale(1.05);
}

/* --- Hero Section --- */
.hero {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    height: 100vh;
    padding-top: 60px; /* Offset for fixed header */
    background: var(--background-color);
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: -webkit-linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content .subtitle {
    font-size: 1.2rem;
    color: var(--text-muted-color);
    max-width: 600px;
    margin: 0 auto 2rem;
}

.cta-button-large {
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    color: var(--text-color);
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cta-button-large:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* --- Features Section --- */
.features-section {
    padding: 5rem 0;
    background-color: var(--surface-color);
}

.features-section .container {
    display: flex;
    justify-content: space-around;
    gap: 2rem;
    text-align: center;
}

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

.feature h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

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

/* --- Footer --- */
.main-footer {
    background-color: #000;
    padding: 2rem 0;
    color: var(--text-muted-color);
}

.main-footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.social-icons a {
    color: var(--text-muted-color);
    margin-left: 1rem;
    font-size: 1.2rem;
    transition: color 0.3s ease;
}

.social-icons a:hover {
    color: var(--primary-color);
}

/* --- Responsive Design --- */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }

    .features-section .container {
        flex-direction: column;
    }

    .main-footer .container {
        flex-direction: column;
        gap: 1rem;
    }
}