:root {
    --primary-color: #2c3e50;
    --accent-color: #f39c12;
    --bg-color: #f8f9fa;
    --text-color: #333;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
}

header {
    background-color: var(--primary-color);
    color: white;
    padding: 1rem 0;
    text-align: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

header h1 {
    margin: 0 0 10px 0;
    font-size: 1.8rem;
}

nav button {
    background: none;
    border: none;
    color: white;
    font-size: 1rem;
    margin: 0 10px;
    cursor: pointer;
    padding: 5px 10px;
    border-radius: 4px;
    transition: background 0.3s;
}

nav button:hover, nav button.active {
    background-color: var(--accent-color);
}

main {
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 20px;
}

.page-section {
    display: none;
    animation: fadeIn 0.5s;
}

.page-section.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

h2 {
    color: var(--primary-color);
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 5px;
}

.project-card, .bio-card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.headshot-placeholder {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover; /* This makes sure your photo isn't stretched or squished */
    display: block; 
    float: left;
    margin: 0 20px 20px 0;
    border: 3px solid var(--primary-color);
    background-color: #ddd;
}

form {
    display: flex;
    flex-direction: column;
}

input, textarea {
    margin-bottom: 15px;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-family: inherit;
}

button.submit-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 4px;
    font-size: 1rem;
}

button.submit-btn:hover {
    background-color: var(--accent-color);
}

footer {
    text-align: center;
    padding: 20px;
    margin-top: 40px;
    font-size: 0.9rem;
    color: #666;
}

@media (max-width: 600px) {
    nav button {
        display: block;
        width: 100%;
        margin: 5px 0;
    }
    .headshot-placeholder {
        float: none;
        display: block;
        margin: 0 auto 20px auto;
    }
}

/* Responsive Video Container */
.video-container {
    width: 100%;
    max-width: 800px; /* Prevents the video from getting too massive on giant desktop monitors */
    margin: 0 auto 20px auto; /* This perfectly centers the video and adds breathing room at the bottom */
    aspect-ratio: 16 / 9; /* This is the magic line that locks it to the standard YouTube widescreen format */
}

.video-container iframe {
    width: 100%;
    height: 100%;
    border-radius: 8px; /* Rounds the corners slightly to match your other project cards */
    box-shadow: 0 2px 5px rgba(0,0,0,0.1); /* Adds a subtle drop shadow */
}