/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --text: #1f2937;
    --text-light: #6b7280;
    --bg: #ffffff;
    --bg-alt: #f9fafb;
    --border: #e5e7eb;
    --max-width: 1200px;
    --spacing: 2rem;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
}

/* Serif fonts for headings and symbols to match extension icon */
h1, h2, h3 {
    font-family: 'Literata', Georgia, 'Times New Roman', Times, serif;
}

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
header {
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    padding: 2rem 0;
    text-align: center;
}

header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.tagline {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* Sections */
section {
    padding: 4rem 0;
}

section h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
    color: var(--text);
}

/* Hero */
.hero {
    text-align: center;
    background: linear-gradient(to bottom, var(--bg-alt), var(--bg));
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.lead {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* CTA Button */
.cta-button {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: background 0.2s ease;
}

.cta-button:hover {
    background: var(--primary-hover);
}

.cta-button.large {
    padding: 1.25rem 3rem;
    font-size: 1.2rem;
}

.note {
    margin-top: 1rem;
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Features */
.features {
    background: var(--bg);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature {
    text-align: center;
    padding: 1.5rem;
}

.feature h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text);
}

.feature p {
    color: var(--text-light);
}

/* Symbols */
.symbols {
    background: var(--bg-alt);
}

.symbol-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.symbol-item {
    text-align: center;
    padding: 1.5rem;
    background: white;
    border-radius: 0.5rem;
    border: 1px solid var(--border);
}

.symbol {
    display: block;
    font-size: 3rem;
    margin-bottom: 0.5rem;
    color: var(--primary);
    font-family: 'Literata', Georgia, 'Times New Roman', Times, serif;
}

.name {
    display: block;
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Install Section */
.install {
    text-align: center;
    background: var(--bg);
}

.install p {
    color: var(--text-light);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

/* Footer */
footer {
    background: var(--bg-alt);
    border-top: 1px solid var(--border);
    padding: 2rem 0;
    text-align: center;
}

footer p {
    color: var(--text-light);
    font-size: 0.9rem;
}

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

footer a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    header h1 {
        font-size: 1.75rem;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .lead {
        font-size: 1.1rem;
    }
    
    section {
        padding: 3rem 0;
    }
    
    .feature-grid,
    .symbol-list {
        gap: 1.5rem;
    }
    
    .cta-button.large {
        padding: 1rem 2rem;
        font-size: 1.1rem;
    }
}