/* Default light theme */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --accent-color: #0051c3;
    --border-color: #e0e0e0;
}

/* Dark theme when system prefers dark */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #1a1a1a;
        --bg-secondary: #2d2d2d;
        --text-primary: #ffffff;
        --text-secondary: #b3b3b3;
        --accent-color: #0077ff;
        --border-color: #404040;
    }
}

/* Override with explicitly set theme */
[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --accent-color: #0077ff;
    --border-color: #404040;
}

[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --accent-color: #0051c3;
    --border-color: #e0e0e0;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    transition: background-color 0.3s, color 0.3s;
}

header {
    background: var(--bg-secondary);
    padding: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo span {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--accent-color);
    letter-spacing: 0.08em;
    font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
}

#darkModeToggle {
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 0.35rem;
    border-radius: 50%;
    transition: background-color 0.3s;
}

#darkModeToggle:hover {
    background: var(--border-color);
}

.hero {
    text-align: center;
    padding: 1.75rem 1rem;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.hero p {
    font-size: 1rem;
    color: var(--text-secondary);
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.quick-nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.quick-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: all 0.3s;
}

.quick-nav a:hover {
    color: var(--accent-color);
    background: var(--bg-secondary);
}

.os-section {
    margin-bottom: 4rem;
    padding: 2rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.os-section h2 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-color);
    margin-bottom: 2rem;
}

.os-section h3 {
    margin: 1.5rem 0 1rem;
    color: var(--text-primary);
}

.content {
    color: var(--text-secondary);
}

pre {
    background: var(--bg-primary);
    padding: 1rem;
    border-radius: 4px;
    overflow-x: auto;
    margin: 1rem 0;
}

code {
    font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
}

ul, ol {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

li {
    margin-bottom: 0.5rem;
}

.command-group {
    background: var(--bg-primary);
    padding: 1rem;
    border-radius: 4px;
    margin: 1rem 0;
}

.command-group p {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.command-group pre {
    margin: 0.5rem 0 1rem;
}

/* Filter cheatsheet specific styles */
#filters .command-group {
    margin-bottom: 1.5rem;
}

#filters .command-group p {
    color: var(--accent-color);
    font-weight: 500;
    margin-top: 1rem;
}

#filters .command-group pre {
    background: var(--bg-primary);
    padding: 0.75rem;
    border-left: 3px solid var(--accent-color);
    margin: 0.5rem 0;
    font-size: 0.95rem;
    line-height: 1.5;
}

#filters .command-group pre code {
    color: var(--text-primary);
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    text-decoration: underline;
}

footer {
    text-align: center;
    padding: 2rem 1rem;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .quick-nav {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
        margin: 1.5rem 1rem 2rem;
    }

    .quick-nav a {
        width: 100%;
        padding: 0.75rem 0.5rem;
        background: var(--bg-secondary);
        font-size: 0.95rem;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .quick-nav a:hover {
        background: var(--bg-primary);
        box-shadow: 0 0 0 1px var(--accent-color);
    }

    .os-section {
        padding: 1rem;
    }
}

@media (max-width: 380px) {
    .quick-nav {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
}