:root {
    --color-primary: #0B1F33;
    --color-background: #FFFFFF;
    --color-divider: #E5E5E5;
    --color-text: #111111;
    --color-text-muted: #555555;
    --color-button-text: #FFFFFF;

    --max-width: 1100px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;

    --border-radius-small: 2px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--color-background);
    color: var(--color-text);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover,
a:focus {
    text-decoration: underline;
}

h1,
h2,
h3,
h4 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    font-family: Georgia, "Times New Roman", serif;
    font-weight: 400;
    color: var(--color-primary);
}

p {
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--color-text);
}

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

ul {
    margin: 0;
    padding-left: 1.25rem;
}

main {
    padding-bottom: var(--spacing-xl);
}

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

.section {
    padding: var(--spacing-xl) 0;
}

.section:first-of-type {
    padding-top: var(--spacing-lg);
}

.section-header {
    margin-bottom: var(--spacing-md);
}

.section-body {
    color: var(--color-text);
}

.section-body.narrow {
    max-width: 720px;
}

.section-divider {
    border-bottom: 1px solid var(--color-divider);
    margin-top: var(--spacing-sm);
}

.site-header {
    background-color: var(--color-background);
    position: sticky;
    top: 0;
    z-index: 10;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-sm);
    gap: var(--spacing-md);
}

.branding {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.brand-name {
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.1rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-primary);
}

.brand-name:hover,
.brand-name:focus {
    text-decoration: none;
}

.brand-tagline {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 0.25rem;
}

.site-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 1.5rem;
}

.site-nav .nav-link {
    font-size: 0.9rem;
    color: var(--color-text);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-bottom: 2px solid transparent;
    padding-bottom: 0.25rem;
}

.site-nav .nav-link:hover,
.site-nav .nav-link:focus {
    border-bottom-color: var(--color-divider);
    text-decoration: none;
}

.site-nav .nav-link.active {
    border-bottom-color: var(--color-primary);
}

.header-divider {
    border-bottom: 1px solid var(--color-divider);
}

.hero {
    position: relative;
    color: #FFFFFF;
    padding: 5rem 0;
    min-height: 500px;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.hero-media {
    position: absolute;
    inset: 0;
    background-color: #111827;
    background-image: url("images/hero.png");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.85;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(5, 10, 18, 0.68);
}

.hero-content {
    position: relative;
    padding: var(--spacing-xl) var(--spacing-md);
    z-index: 1;
    width: 100%;
}

.hero h1 {
    color: #FFFFFF;
    font-size: 2.2rem;
    margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
    max-width: 640px;
    color: #E5E7EB;
    margin-bottom: var(--spacing-md);
}

.page-hero {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    border-bottom: 1px solid var(--color-divider);
    margin-bottom: var(--spacing-lg);
}

.page-hero h1 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.page-intro {
    max-width: 720px;
    color: var(--color-text-muted);
}

.columns {
    display: flex;
    gap: var(--spacing-lg);
}

.columns-3 .card {
    flex: 1 1 0;
}

.card {
    border-top: 2px solid var(--color-primary);
    padding-top: var(--spacing-md);
}

.card h3 {
    margin-bottom: var(--spacing-xs);
    font-size: 1.1rem;
}

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

.simple-list {
    list-style: disc;
}

.simple-list.ordered {
    list-style: decimal;
}

.simple-list li {
    margin-bottom: 0.35rem;
    color: var(--color-text);
}

.button {
    display: inline-block;
    padding: 0.7rem 1.6rem;
    font-size: 0.95rem;
    border-radius: var(--border-radius-small);
    border: 1px solid transparent;
    cursor: pointer;
    text-align: center;
    white-space: nowrap;
}

.primary-button {
    background-color: var(--color-primary);
    color: var(--color-button-text);
    border-color: var(--color-primary);
}

.primary-button:hover,
.primary-button:focus {
    background-color: #061426;
    border-color: #061426;
    text-decoration: none;
}

.profile {
    margin-bottom: var(--spacing-lg);
}

.profile--with-photo {
    display: flex;
    flex-direction: row;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.profile-photo {
    flex-shrink: 0;
    width: 138px;
    height: 181px;
    overflow: hidden;
    border: 1px solid var(--color-divider);
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    display: block;
}

.profile-content {
    flex: 1;
    text-align: left;
}

.sub-divider {
    border-top: 1px solid var(--color-divider);
    margin: var(--spacing-lg) 0;
}

.profile-title {
    margin-top: 0;
    margin-bottom: 0.5rem;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}


.site-footer {
    background-color: var(--color-background);
    padding-top: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
}

.footer-divider {
    border-top: 1px solid var(--color-divider);
}

.footer-inner {
    padding-top: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-lg);
    align-items: flex-start;
}

.footer-main {
    max-width: 420px;
}

.footer-brand {
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}

.footer-tagline {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 0.75rem;
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.footer-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-nav li {
    margin-bottom: 0.35rem;
}

.footer-nav a {
    font-size: 0.85rem;
    color: var(--color-text);
}

.footer-nav a:hover,
.footer-nav a:focus {
    text-decoration: underline;
}

@media (max-width: 900px) {
    .columns {
        flex-direction: column;
    }

    .header-inner {
        align-items: flex-start;
        flex-direction: column;
    }

    .site-nav ul {
        gap: 1rem;
        flex-wrap: wrap;
    }

    .hero-content {
        padding: var(--spacing-lg) var(--spacing-md);
    }
}

@media (max-width: 600px) {
    .header-inner {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .brand-name {
        font-size: 1rem;
    }

    .brand-tagline {
        font-size: 0.75rem;
    }

    .site-nav ul {
        flex-direction: column;
        align-items: flex-start;
    }

    .hero {
        padding: 3rem 0;
        min-height: 400px;
    }

    .hero h1 {
        font-size: 1.7rem;
    }

    .hero-subtitle {
        font-size: 0.95rem;
    }

    .page-hero {
        padding-top: var(--spacing-lg);
        padding-bottom: var(--spacing-md);
    }

    .footer-inner {
        flex-direction: column;
        align-items: flex-start;
    }
}