:root {
    --bg-color: #ffffff;
    --text-color: #1a1a1a;
    --heading-color: #000000;
    --accent-color: #0056b3;
    --secondary-text: #555555;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    --line-height: 1.6;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-family);
    line-height: var(--line-height);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
}

header {
    text-align: center;
    padding: 4rem 1rem 3rem;
    max-width: 800px;
    margin: 0 auto;
}

.profile-container {
    margin-bottom: 2rem;
}

.profile-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    background-color: #e0e0e0; /* Placeholder color */
    display: block;
    margin: 0 auto;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--heading-color);
    letter-spacing: -0.02em;
}

header .subtitle {
    font-size: 1.25rem;
    color: var(--secondary-text);
    margin-bottom: 2rem;
    font-weight: 400;
}

.mission-statement {
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.1rem;
    color: var(--text-color);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.jump-nav {
    margin: 2rem 0;
    font-size: 0.9rem;
    color: var(--secondary-text);
}

.jump-nav a {
    text-decoration: none;
    color: var(--secondary-text);
    margin: 0 0.5rem;
}

.jump-nav a:hover {
    color: var(--accent-color);
}

.ad-container {
    width: 100%;
    margin: 2rem 0 4rem 0;
    text-align: center;
    background-color: transparent;
    min-height: 100px; /* Provides space before ad loads to prevent layout shift */
}

.ad-top {
    margin-top: 0;
}

.scroll-indicator {
    margin-top: 2rem;
    font-size: 0.85rem;
    color: #999;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {transform: translateY(0);}
    40% {transform: translateY(-5px);}
    60% {transform: translateY(-3px);}
}

main {
    max-width: 700px;
    margin: 0 auto;
    padding: 2rem 1rem 6rem;
}

section {
    margin-bottom: 5rem;
}

section h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--heading-color);
    margin-bottom: 2rem;
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
}

.section-number {
    font-size: 0.9rem;
    color: #999;
    margin-right: 1rem;
    font-weight: 400;
    transform: translateY(1px);
}

h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--heading-color);
}

.venture-item p, .career-item p, .capability-group p {
    margin-bottom: 0.5rem;
}

.role {
    font-style: italic;
    color: var(--secondary-text);
}

ul {
    list-style-type: none; /* Cleaner look, might use custom bullets if needed */
    padding-left: 0;
    margin-top: 0.5rem;
}

li {
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.2rem;
}

li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: #999;
}

a {
    color: var(--text-color);
    text-decoration: underline;
    text-decoration-color: #ccc;
    text-underline-offset: 3px;
    transition: text-decoration-color 0.2s;
}

a:hover {
    text-decoration-color: var(--accent-color);
    color: var(--accent-color);
}

footer {
    text-align: center;
    padding: 4rem 1rem;
    font-size: 0.85rem;
    color: #888;
    border-top: 1px solid #eee;
    margin-top: 2rem;
}

footer p {
    margin: 0.5rem 0;
}

/* Responsiveness */
@media (max-width: 600px) {
    header h1 {
        font-size: 2rem;
    }

    main {
        padding-top: 1rem;
    }

    section {
        margin-bottom: 3.5rem;
    }
}