:root {
    --primary-color: #3F51B5; /* Deep Indigo */
    --accent-color: #00E5FF;  /* Electric Cyan */
    /* --background-color: #1C1C1C; Matte Charcoal */
    --background-color: #000000; /* Matte Charcoal */
    --text-color: #E0E0E0; /* Soft Silver */
    --highlight-color: #00FF9F; /* Neon Green */
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

/* --- Header & Navigation --- */
header {
    /* background-color: rgba(28, 28, 28, 0.8); */
    background-color: #000000;
    /* backdrop-filter: blur(10px); */
    /* border-bottom: 1px solid #333; */
    border-bottom: 1px solid #000000;
    padding: 1rem 5%;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo-placeholder {
    font-weight: bold;
    font-size: 1.5rem;
    color: var(--text-color);
    /* Style for your logo image if you add one */
}

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

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

nav a:hover {
    color: var(--accent-color);
}

/* --- Hero Section --- */
#hero {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    min-height: 90vh;
    padding: 0 5%;
    background: radial-gradient(circle, rgba(63,81,181,0.1) 0%, rgba(28,28,28,0) 60%);
}

#hero h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    margin-bottom: 1rem;
    text-shadow: 0 0 15px rgba(0, 229, 255, 0.3);
}

#hero p {
    font-size: 1.2rem;
    max-width: 600px;
    margin-bottom: 2rem;
    color: #b0b0b0;
}

.cta-button {
    background-color: var(--highlight-color);
    color: #000;
    padding: 12px 28px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    transition: transform 0.2s ease, box-shadow 0.3s ease;
    box-shadow: 0 0 20px rgba(0, 255, 159, 0.3);
}

.cta-button:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(0, 255, 159, 0.6);
}

/* --- Features Section --- */
#features {
    padding: 5rem 5%;
    text-align: center;
}

#features h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: #252525;
    padding: 2rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
    text-align: left;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}
#hero p.main-title{
    font-size: 50px;
    color: #E0E0E0;
}
#hero p.sub-title{
    font-size: 30px;
    color: #E0E0E0;
}

/* --- Footer --- */
footer {
    text-align: center;
    padding: 2rem;
    margin-top: 2rem;
    /* background-color: #111; */
    background-color: #000000;
    border-top: 1px solid #000000;
    /* border-top: 1px solid #333; */
}

/* --- Animations --- */
.fade-in { animation: fadeIn 1s ease-in-out forwards; }
.scroll-fade { opacity: 0; transition: opacity 0.8s ease-out, transform 0.6s ease-out; transform: translateY(30px); }
.scroll-fade.visible { opacity: 1; transform: translateY(0); }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@media (max-width: 667px) {
    #hero p.fade-in{
        max-width: 300px;
        margin: 0px auto
    }
    #hero p.fade-in img{
        width: 100%;
    }
    #hero p.main-title{
        font-size: 40px;
        line-height: 50px;
        color: #E0E0E0;
    }
    #hero p.sub-title{
        font-size: 25px;
        color: #E0E0E0;
    }
}