/* Global Styles */
:root {
    --primary-color: #3b82f6; /* Blue like OpenClaw logo */
    --secondary-color: #10b981; /* Green for success/money */
    --dark-bg: #0f172a;
    --light-bg: #f8fafc;
    --text-dark: #1e293b;
    --text-light: #f1f5f9;
    --accent: #f59e0b; /* Amber */
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
    margin: 0;
    font-family: var(--font-main);
    line-height: 1.6;
    color: var(--text-dark);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s;
}

ul {
    list-style: none;
    padding: 0;
}

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

/* Typography */
h1, h2, h3 {
    line-height: 1.2;
    margin-bottom: 20px;
}

h1 { font-size: 3rem; font-weight: 800; }
h2 { font-size: 2.25rem; margin-top: 0; }
h3 { font-size: 1.5rem; }

/* Navbar */
.navbar {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 30px;
}

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

/* Hero Section */
.hero {
    background: var(--dark-bg);
    color: white;
    text-align: center;
    padding: 100px 20px;
}

.subtitle {
    font-size: 1.25rem;
    color: #94a3b8;
    max-width: 700px;
    margin: 0 auto 40px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 30px;
}

.btn {
    padding: 12px 30px;
    border-radius: 8px;
    font-weight: 600;
    display: inline-block;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}
.btn-primary:hover { background: #2563eb; }

.btn-secondary {
    background: transparent;
    border: 2px solid white;
    color: white;
}
.btn-secondary:hover { background: white; color: var(--text-dark); }

.hero-small {
    font-size: 0.875rem;
    color: #64748b;
}

/* Sections */
section {
    padding: 80px 0;
}

.section-light { background: white; }
.section-dark { background: var(--light-bg); }

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.feature-card {
    background: var(--light-bg);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
}

/* Installation Guide */
.install-tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
}

.tab-btn {
    padding: 10px 20px;
    border: none;
    background: #e2e8f0;
    cursor: pointer;
    border-radius: 6px;
    font-weight: 600;
}

.tab-btn.active {
    background: var(--primary-color);
    color: white;
}

.steps-list li {
    background: white;
    border-left: 4px solid var(--primary-color);
    padding: 20px 30px;
    margin-bottom: 20px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.affiliate-link {
    color: var(--secondary-color);
    font-weight: bold;
    text-decoration: underline;
}

pre {
    background: #1e293b;
    color: #a5f3fc;
    padding: 15px;
    border-radius: 6px;
    overflow-x: auto;
}

/* Skills */
.skill-item {
    border-bottom: 1px solid #e2e8f0;
    padding: 20px 0;
}
.skill-item:last-child { border-bottom: none; }

.warning {
    color: #ef4444;
    font-weight: bold;
}

/* CTA Section */
.section-cta {
    background: var(--primary-color);
    color: white;
    text-align: center;
}

.btn-large {
    font-size: 1.2rem;
    padding: 15px 40px;
    background: #0f172a;
    color: white;
    margin-top: 20px;
}
.btn-large:hover { background: black; }

/* Footer */
footer {
    background: #1e293b;
    color: #94a3b8;
    padding: 40px 0;
    text-align: center;
    font-size: 0.875rem;
}

.footer-links {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    .hero-buttons { flex-direction: column; }
    .nav-links { display: none; } /* Hide nav on mobile for simplicity in v1 */
}