:root {
    --bg-color: #050505;
    --text-color: #ffffff;
    --text-muted: #a1a1aa;
    --primary-color: #ffffff;
    --accent-color: #eab308; /* A nod to 'banana' */
    --border-color: #27272a;
    --card-bg: #18181b;
    --hover-bg: #27272a;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.site-header {
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
    position: sticky;
    top: 0;
    background-color: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(10px);
    z-index: 100;
}

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

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 9999px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    font-size: 0.95rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #000;
}

.btn-primary:hover {
    background-color: #e5e5e5;
    transform: translateY(-1px);
}

/* Hero */
.hero-section {
    padding: 120px 0;
    text-align: center;
}

.hero-section h1 {
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(to right, #fff, #a1a1aa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 40px;
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
    background-color: var(--accent-color); /* Yellow accent */
    color: #000;
}

.btn-large:hover {
    filter: brightness(1.1);
    box-shadow: 0 0 20px rgba(234, 179, 8, 0.3);
}

/* Features */
.features-section, .detail-section, .performance-section, .faq-section {
    padding: 80px 0;
    border-top: 1px solid var(--border-color);
}

h2 {
    font-size: 2.25rem;
    font-weight: 600;
    margin-bottom: 48px;
    letter-spacing: -0.03em;
    text-align: center;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 48px;
}

.feature-card {
    background-color: var(--card-bg);
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: transform 0.2s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--text-muted);
}

.feature-card p, .content-block p, .faq-item p {
    color: var(--text-muted);
    font-size: 1.05rem;
}

.content-block {
    margin-bottom: 64px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* FAQ */
.faq-item {
    max-width: 800px;
    margin: 0 auto 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border-color);
}

.faq-item:last-child {
    border-bottom: none;
}

/* Footer */
footer {
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-container {
    display: flex;
    justify-content: space-between;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    margin-left: 24px;
}

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

/* Mobile */
@media (max-width: 768px) {
    .hero-section h1 {
        font-size: 2.5rem;
    }
    
    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
    }
}