/* CSS Variables for consistent theming */
:root {
    --bg-primary: #0A0A0A;
    --text-primary: #FFFFFF;
    --text-secondary: #AAAAAA;
    --accent-primary: #4AD991;
    --accent-hover: #37B381;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    height: 100%;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    height: 100vh;
    overflow-x: hidden;
}

/* Main container - centered layout */
.container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 2rem 1rem;
    position: relative;
}

/* Content wrapper */
.content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 600px;
    width: 100%;
}

/* Headshot styling */
.headshot-container {
    margin-bottom: 3rem;
}

.headshot {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--accent-primary);
    box-shadow: 0 0 20px rgba(74, 217, 145, 0.3);
    transition: box-shadow 0.3s ease;
}

.headshot:hover {
    box-shadow: 0 0 30px rgba(74, 217, 145, 0.5);
}

/* Text content */
.text-content {
    width: 100%;
}

.headline {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.subheading {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
    letter-spacing: -0.01em;
}

.description {
    font-size: 1.125rem;
    font-weight: 300;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* CTA Button */
.cta-button {
    display: inline-block;
    background-color: var(--accent-primary);
    color: var(--bg-primary);
    text-decoration: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    letter-spacing: 0.01em;
}

.cta-button:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(74, 217, 145, 0.3);
}

.cta-button:active {
    transform: translateY(0);
}

/* Footer */
.footer {
    position: absolute;
    bottom: 2rem;
    width: 100%;
    text-align: center;
}

.footer p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 300;
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 1.5rem 1rem;
    }
    
    .headshot {
        width: 100px;
        height: 100px;
    }
    
    .headshot-container {
        margin-bottom: 2rem;
    }
    
    .headline {
        font-size: 2rem;
        margin-bottom: 0.75rem;
    }
    
    .subheading {
        font-size: 1.25rem;
        margin-bottom: 1.25rem;
    }
    
    .description {
        font-size: 1rem;
        margin-bottom: 2rem;
        padding: 0 1rem;
    }
    
    .cta-button {
        padding: 0.875rem 1.75rem;
        font-size: 0.95rem;
    }
    
    .footer {
        bottom: 1rem;
    }
    
    .footer p {
        font-size: 0.8rem;
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    .headline {
        font-size: 1.75rem;
    }
    
    .subheading {
        font-size: 1.125rem;
    }
    
    .description {
        font-size: 0.95rem;
    }
    
    .cta-button {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
}

/* Landscape mobile optimization */
@media (max-height: 600px) and (orientation: landscape) {
    .container {
        padding: 1rem;
    }
    
    .headshot {
        width: 80px;
        height: 80px;
    }
    
    .headshot-container {
        margin-bottom: 1rem;
    }
    
    .headline {
        font-size: 1.5rem;
        margin-bottom: 0.5rem;
    }
    
    .subheading {
        font-size: 1.125rem;
        margin-bottom: 0.75rem;
    }
    
    .description {
        font-size: 0.9rem;
        margin-bottom: 1.5rem;
    }
    
    .footer {
        position: static;
        margin-top: 1rem;
    }
}

/* High-resolution display optimization */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .headshot {
        border-width: 2px;
    }
}

/* Focus states for accessibility */
.cta-button:focus {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Prevent text selection on non-interactive elements */
.headline,
.subheading {
    user-select: none;
}