:root {
    --bg-color: #09090b; /* zinc-950 */
    --card-bg: #18181b; /* zinc-900 */
    --card-border: #27272a; /* zinc-800 */
    --text-primary: #f4f4f5; /* zinc-100 */
    --text-secondary: #a1a1aa; /* zinc-400 */
    --text-muted: #52525b; /* zinc-500 */
    --emerald: #10b981; /* emerald-500 */
    --emerald-light: #34d399; /* emerald-400 */
    --emerald-dark: #064e3b; /* emerald-950 */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'DejaVu Sans Mono', monospace;
    --container-width: 1024px;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

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

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.gap-2 { gap: 0.5rem; }
.gap-6 { gap: 1.5rem; }

.section-padding {
    padding: 4rem 0;
}

.text-center { text-align: center; }
.text-emerald { color: var(--emerald-light); }

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

/* Sections */
.hero {
    position: relative;
    overflow: hidden;
    padding: 6rem 0;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top center, rgba(16, 185, 129, 0.1), transparent 70%);
    pointer-events: none;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.5rem;
}

.hero-logo {
    filter: drop-shadow(0 0 20px rgba(16, 185, 129, 0.3));
    margin-bottom: 1rem;
}

.brand-name {
    font-size: 4rem;
    font-weight: 800;
    color: var(--emerald-light);
    letter-spacing: -0.05em;
}

.hero-description {
    font-size: 1.5rem;
    color: var(--text-secondary);
    max-width: 42rem;
    line-height: 1.4;
}

/* Buttons */
.cta-group {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
}

.btn-primary {
    background-color: #059669; /* emerald-600 */
    color: white;
}

.btn-primary:hover {
    background-color: #10b981; /* emerald-500 */
}

.btn-secondary {
    background-color: #27272a; /* zinc-800 */
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: #3f3f46; /* zinc-700 */
}

.icon { width: 1.25rem; height: 1.25rem; }
.icon-sm { width: 1rem; height: 1rem; }
.icon-xs { width: 0.875rem; height: 0.875rem; }

/* Terminal Card */
.terminal-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 0.75rem;
    padding: 1.5rem;
    max-width: 40rem;
    margin: 0 auto;
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.terminal-meta {
    font-size: 0.875rem;
    color: var(--text-muted);
}

code {
    font-family: var(--font-mono);
    color: var(--emerald-light);
    font-size: 1.125rem;
    display: block;
}

/* Features */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

.feature-card {
    background-color: rgba(24, 24, 27, 0.5); /* zinc-900/50 */
    border: 1px solid var(--card-border);
    border-radius: 0.75rem;
    padding: 1.5rem;
    transition: border-color 0.2s;
    text-decoration: none;
    color: inherit;
    display: block;
}

.feature-card:hover {
    border-color: #3f3f46; /* zinc-700 */
}

.feature-icon {
    color: var(--emerald-light);
    width: 1.5rem;
    height: 1.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Usage Terminal */
.terminal-usage {
    max-width: 48rem;
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.usage-block {
    margin-bottom: 1rem;
}

.usage-block:last-child {
    margin-bottom: 0;
}

.comment {
    color: var(--text-muted);
}

.cmd {
    color: var(--emerald-light);
    margin-top: 0.25rem;
}

/* Links */
.link-emerald {
    color: var(--emerald-light);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.link-emerald:hover {
    color: #6ee7b7; /* emerald-300 */
}

/* Footer */
.footer {
    border-top: 1px solid var(--card-border);
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer p {
    color: var(--text-muted);
    font-size: 0.875rem;
    text-align: center;
}

@media (max-width: 640px) {
    .brand-name {
        font-size: 3rem;
    }
    .hero-description {
        font-size: 1.125rem;
    }
    .feature-grid {
        grid-template-columns: 1fr;
    }
}