/* --- Base Reset & Variables --- */
:root {
    --bg-dark: #0F1A30;
    --card-blue: #1B2A4A;
    --accent-gold: #D4AF37;
    --text-light: #F5F5F5;
    --text-muted: #A0AABF;
    --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.6;
    padding-top: 70px; /* Space for fixed header */
}

/* --- Header & Mobile Nav --- */
.site-header {
    background-color: var(--bg-dark);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 24px;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid rgba(212, 175, 55, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 1px;
    color: var(--text-light);
}

.menu-toggle {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 5px;
    z-index: 1001;
}

.menu-toggle .bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-light);
    transition: all 0.3s ease;
}

/* Hidden Off-canvas Menu for Mobile */
.nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 75%;
    background-color: var(--card-blue);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    transition: right 0.4s ease;
    box-shadow: -5px 0 15px rgba(0,0,0,0.5);
}

.nav-links.active {
    right: 0;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 500;
}

.btn-buy-nav {
    background-color: var(--accent-gold);
    color: var(--bg-dark) !important;
    padding: 10px 24px;
    border-radius: 20px;
    font-weight: 600;
}

/* --- Hero Section --- */
.hero {
    padding: 40px 24px;
    display: flex;
    flex-direction: column;
    gap: 32px;
    text-align: center;
}

.hero-content h1 {
    font-size: 2.2rem;
    line-height: 1.2;
    margin-bottom: 16px;
    font-weight: 800;
}

.accent-text {
    color: var(--accent-gold);
}

.hero-content p {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 24px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.btn-primary {
    display: inline-block;
    background-color: var(--accent-gold);
    color: var(--bg-dark);
    text-decoration: none;
    padding: 14px 36px;
    border-radius: 25px;
    font-weight: 700;
    letter-spacing: 0.5px;
    transition: transform 0.2s;
}

.btn-primary:active {
    transform: scale(0.98);
}

.hero-image-container {
    width: 100%;
    border-radius: 16px;
    overflow: hidden;
    background-color: var(--card-blue);
    padding: 20px;
    display: flex;
    justify-content: center;
}

.responsive-img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

/* --- Features Section --- */
.features {
    padding: 40px 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.feature-card {
    background-color: var(--card-blue);
    padding: 32px 24px;
    border-radius: 16px;
    text-align: center;
    border: 1px solid rgba(212, 175, 55, 0.05);
}

.feature-icon {
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--text-light);
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 16px;
}

.learn-more {
    color: var(--accent-gold);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
}

/* --- Media Query for Desktop Scaling --- */
@media (min-width: 768px) {
    body { padding-top: 80px; }
    .menu-toggle { display: none; }
    
    .nav-links {
        position: static;
        height: auto;
        width: auto;
        background: none;
        flex-direction: row;
        gap: 24px;
        box-shadow: none;
    }
    
    .nav-links a { font-size: 0.95rem; }
    .btn-buy-nav { padding: 8px 20px; }

    .hero {
        flex-direction: row;
        align-items: center;
        text-align: left;
        max-width: 1100px;
        margin: 40px auto;
        gap: 60px;
    }
    
    .hero-content p { margin-left: 0; }

    .features {
        flex-direction: row;
        max-width: 1100px;
        margin: 0 auto 60px auto;
    }
    
    .feature-card { flex: 1; }
}