:root {
    --color-primary: #0ea5e9;
    --color-primary-dark: #0284c7;
    --color-bg-dark: #0f0f0f;
    --color-bg-medium: #1a1a1a;
    --color-bg-card: #161616;
    --color-text: #f5f5f5;
    --color-text-dim: #a3a3a3;
    --color-text-dimmer: #737373;
    --color-border: #262626;
    --color-border-light: #404040;
    --color-border-dark: #1f1f1f;
    --color-border-darker: #1a1a1a;
    --color-overlay: rgba(255, 255, 255, 0.02);
    --color-overlay-light: rgba(255, 255, 255, 0.03);
    --color-primary-glow: rgba(14, 165, 233, 0.15);
    --color-primary-glow-soft: rgba(14, 165, 233, 0.25);
    --color-primary-bg: rgba(14, 165, 233, 0.08);
}

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

body {
    font-family: 'SF Mono', 'Monaco', 'Menlo', 'Consolas', monospace;
    background: var(--color-bg-dark);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
}

.github-button {
    position: fixed;
    top: 20px;
    right: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: 8px;
    color: var(--color-text);
    text-decoration: none;
    transition: all 0.2s ease;
    z-index: 1000;
}

.github-button:hover,
.github-button:focus-visible {
    background: var(--color-bg-medium);
    border-color: var(--color-primary);
    color: var(--color-primary);
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.github-button svg {
    width: 24px;
    height: 24px;
}

/* Header */
header {
    text-align: center;
    padding: 60px 20px 40px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 60px;
}

.logo {
    margin-bottom: 24px;
}

.logo h1 {
    font-size: 3.5em;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0;
    letter-spacing: -0.02em;
}

.logo-accent {
    color: var(--color-primary);
}

.tagline {
    font-size: 1.1em;
    color: var(--color-text-dim);
    font-weight: 400;
    margin: 8px 0;
}

.install-command {
    margin-top: 32px;
    display: inline-block;
}

.install-command code {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: 8px;
    padding: 16px 32px;
    font-size: 1.1em;
    color: var(--color-primary);
    display: inline-block;
    font-family: inherit;
}



/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 80px;
}

.feature {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 32px 28px;
    transition: all 0.2s ease;
}

.feature:hover {
    border-color: var(--color-border-light);
    background: var(--color-bg-medium);
}

.feature h3 {
    color: var(--color-text);
    margin-bottom: 8px;
    font-size: 1.1em;
    font-weight: 500;
}

.feature p {
    color: var(--color-text-dim);
    font-size: 0.95em;
    line-height: 1.5;
}

/* Demo Section */
.demo {
    margin-bottom: 80px;
}

.demo h2 {
    color: var(--color-text);
    font-size: 1.75em;
    font-weight: 500;
    margin-bottom: 12px;
    text-align: center;
}

.demo-banner {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a52 100%);
    color: white;
    text-align: center;
    padding: 12px 20px;
    font-family: inherit;
    font-weight: 500;
    font-size: 0.95em;
    border-radius: 8px;
    margin: 0 auto 24px;
    max-width: 600px;
    box-shadow: 0 4px 12px rgba(255, 107, 107, 0.3);
    letter-spacing: 0.02em;
}

.demo-instructions {
    text-align: center;
    margin-bottom: 32px;
    color: var(--color-text-dim);
    font-size: 0.95em;
    line-height: 1.8;
}

kbd {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: 4px;
    padding: 3px 10px;
    font-family: inherit;
    color: var(--color-primary);
    font-size: 0.9em;
}

.terminal-container {
    position: relative;
    background: var(--color-bg-dark);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    max-width: 1200px;
    margin: 0 auto;
    line-height: 0;
}

.terminal-header {
    background: var(--color-bg-medium);
    padding: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid var(--color-border);
    /* Reset line-height for header content */
    line-height: 1.6;
}

.terminal-button {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}

.terminal-button.close {
    background: #ff5f56;
}

.terminal-button.minimize {
    background: #ffbd2e;
}

.terminal-button.maximize {
    background: #27c93f;
}

.terminal-title {
    margin-left: auto;
    color: var(--color-text-dimmer);
    font-size: 0.9em;
}

#terminal {
    width: 100%;
    height: 700px;
    border: none;
    display: block;
    /* Remove any default spacing */
    margin: 0;
    padding: 0;
    background: #000;
}

/* Info Section */
.info {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 48px;
    margin-bottom: 80px;
}

.info h2 {
    color: var(--color-text);
    font-size: 1.75em;
    font-weight: 500;
    margin-bottom: 28px;
}

.info ul {
    list-style: none;
    padding-left: 0;
}

.info li {
    padding: 14px 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 1em;
    color: var(--color-text-dim);
}

.info li:last-child {
    border-bottom: none;
}

/* Tech Section */
.tech {
    margin-bottom: 80px;
}

.tech h2 {
    color: var(--color-text);
    font-size: 1.75em;
    font-weight: 500;
    margin-bottom: 28px;
    text-align: center;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.tech-item {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
}

.tech-item strong {
    color: var(--color-text);
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
}

.tech-item span {
    color: var(--color-text-dim);
    font-size: 0.95em;
}

/* Future Section */
.future {
    margin-bottom: 80px;
}

.future h2 {
    color: var(--color-text);
    font-size: 1.75em;
    font-weight: 500;
    margin-bottom: 28px;
    text-align: center;
}

.future-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.future-item {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 28px;
    transition: all 0.2s ease;
}

.future-item:hover {
    border-color: var(--color-border-light);
    background: var(--color-bg-medium);
}

.future-item h3 {
    color: var(--color-text);
    margin-bottom: 8px;
    font-size: 1.05em;
    font-weight: 500;
}

.future-item p {
    color: var(--color-text-dim);
    font-size: 0.9em;
    line-height: 1.6;
}

.future-item code {
    background: var(--color-primary-bg);
    padding: 3px 8px;
    border-radius: 4px;
    color: var(--color-primary);
    font-size: 0.85em;
    display: inline-block;
    margin-top: 8px;
    border: 1px solid var(--color-border);
}

/* Footer */
footer {
    text-align: center;
    padding: 40px 20px;
    border-top: 2px solid var(--color-primary);
    color: var(--color-text-dimmer);
}

footer a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.3s ease, text-shadow 0.3s ease;
}

footer a:hover,
footer a:focus-visible {
    color: var(--color-primary);
    text-shadow: 0 0 10px var(--color-primary-glow-soft);
    outline: 1px solid var(--color-primary);
    outline-offset: 2px;
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 2em;
    }

    .features {
        grid-template-columns: 1fr;
    }

    .demo-banner {
        font-size: 0.85em;
        padding: 10px 16px;
    }

    .demo-instructions {
        font-size: 0.9em;
        padding: 0 10px;
    }

    #terminal {
        height: 500px;
    }

    .terminal-container {
        border-radius: 8px;
    }

    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .future-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    #terminal {
        height: 400px;
    }

    .demo-banner {
        font-size: 0.8em;
        padding: 8px 12px;
    }

    kbd {
        font-size: 0.85em;
        padding: 2px 8px;
    }
}