:root {
    --primary-color: #00ff88;
    --secondary-color: #0a0a0a;
    --bg-color: #121212;
    --text-color: #f0f0f0;
    --card-bg: #1e1e1e;
    --heading-color: #ffffff;
    --font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

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

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

a { color: var(--primary-color); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.site-header {
    background-color: var(--secondary-color);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid #333;
}
.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.main-nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}
.main-nav a {
    color: #fff;
    font-weight: 500;
}
.main-nav a:hover {
    color: var(--primary-color);
    text-decoration: none;
}
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
}

/* Buttons */
.btn-primary {
    background-color: var(--primary-color);
    color: #000;
    padding: 10px 25px;
    border-radius: 5px;
    font-weight: bold;
    display: inline-block;
}
.btn-primary:hover {
    background-color: #00cc6a;
    text-decoration: none;
}
.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 10px 25px;
    border-radius: 5px;
    font-weight: bold;
    display: inline-block;
}
.btn-secondary:hover {
    background-color: var(--primary-color);
    color: #000;
    text-decoration: none;
}

/* Hero Section */
.hero {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%);
    border-bottom: 1px solid #333;
}
.hero h1 {
    font-size: 3.5rem;
    color: var(--heading-color);
    margin-bottom: 20px;
}
.hero p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 30px;
    color: #ccc;
}
.hero-img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    margin-top: 40px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

/* Content Sections */
.content-section {
    padding: 60px 0;
}
.content-section h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 30px;
    text-align: center;
}
.content-section h3 {
    font-size: 1.8rem;
    margin: 25px 0 15px;
    color: var(--heading-color);
}
.content-section p {
    margin-bottom: 20px;
    font-size: 1.1rem;
}
.content-section ul {
    margin-bottom: 20px;
    padding-left: 20px;
}
.content-section li {
    margin-bottom: 10px;
}

/* Grid Layout for images/features */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.card {
    background-color: var(--card-bg);
    padding: 25px;
    border-radius: 8px;
    text-align: left;
    border: 1px solid #333;
}
.card h4 { margin-bottom: 15px; font-size: 1.2rem; color: var(--primary-color); }
.card img { max-width: 100%; border-radius: 5px; margin-bottom: 15px; }

/* FAQ Accordion */
.faq-item {
    background-color: var(--card-bg);
    margin-bottom: 10px;
    border-radius: 5px;
    overflow: hidden;
}
.faq-question {
    width: 100%;
    text-align: left;
    padding: 15px 20px;
    background: none;
    border: none;
    color: var(--heading-color);
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
}
.faq-answer {
    padding: 0 20px 15px;
    display: none;
    color: #ccc;
}
.faq-item.active .faq-answer { display: block; }

/* Footer */
.site-footer {
    background-color: var(--secondary-color);
    padding: 60px 0 20px;
    border-top: 1px solid #333;
}
.footer-inner {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}
.footer-col h3 { margin-bottom: 20px; color: var(--heading-color); }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-bottom { text-align: center; border-top: 1px solid #333; padding-top: 20px; color: #777; }

/* Responsive */
@media (max-width: 768px) {
    .main-nav { display: none; }
    .mobile-menu-toggle { display: block; }
    .hero h1 { font-size: 2.5rem; }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr; }
}