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

:root {
    --black: #000000;
    --dark-gray: #333333;
    --medium-gray: #666666;
    --light-gray: #767676;
    --lighter-gray: #e5e5e5;
    --off-white: #f8f8f8;
    --white: #ffffff;
    --accent: #0066cc;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
    background: var(--white);
    color: var(--dark-gray);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 32px;
}

header {
    padding: 32px 0 32px;
}

.header-content {
    max-width: 820px;
    margin: 0 auto;
    text-align: center;
}

.header-top {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 24px;
}

.header-top h1::after {
    content: '.';
    color: var(--accent);
}

.profile {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    overflow: hidden;
    background: var(--lighter-gray);
    display: flex;
    align-items: center;
    justify-content: center;
}
.profile img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

h1 {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--black);
}

.tagline {
    font-size: 18px;
    color: var(--medium-gray);
    margin-bottom: 20px;
    font-weight: 400;
}

.header-nav {
    display: flex;
    gap: 32px;
    justify-content: center;
    font-size: 15px;
}

.header-nav a {
    color: var(--dark-gray);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.header-nav a:hover {
    color: var(--accent);
}
.header-nav a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.header-nav a.active {
    color: var(--black);
    font-weight: 600;
}

.site-header {
    border-bottom: 1px solid var(--lighter-gray);
    padding: 24px 0;
}

.site-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-nav.container {
    max-width: 1280px;
    padding: 0 24px;
}

.site-logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--black);
    text-decoration: none;
    display: inline-block;
    line-height: 32px;
    white-space: nowrap;
}
.site-logo::after {
    content: '.';
    color: var(--accent);
}
.site-logo-pic {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--lighter-gray);
    margin-right: 10px;
    vertical-align: middle;
}

.site-menu {
    display: flex;
    gap: 28px;
    font-size: 15px;
}

.site-menu a {
    color: var(--medium-gray);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.site-menu a:hover,
.site-menu a.active {
    color: var(--black);
    border-bottom: 2px solid var(--black);
    padding-bottom: 2px;
}
.site-menu a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.page-header {
    padding: 60px 0 48px;
}

.breadcrumb {
    font-size: 14px;
    color: var(--medium-gray);
    margin-bottom: 24px;
}

.breadcrumb a {
    color: var(--medium-gray);
    text-decoration: none;
}

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

.page-title {
    font-size: 40px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--black);
    margin-bottom: 16px;
    line-height: 1.2;
}

.page-meta {
    font-size: 16px;
    color: var(--medium-gray);
}

.page-masthead {
    max-width: 1280px;
    margin: 56px auto 0;
    padding: 0 24px;
}

.page-masthead-title {
    font-size: 64px;
    font-weight: 800;
    letter-spacing: -2.2px;
    line-height: 1;
    margin: 0 0 16px;
    color: var(--black);
}

.page-masthead-title::after {
    content: '.';
    color: var(--accent);
}

.page-masthead-sub {
    font-size: 16px;
    color: var(--medium-gray);
    line-height: 1.5;
    margin: 0;
    max-width: 60ch;
}

.masthead-cta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 17px;
    line-height: 1.4;
    color: var(--dark-gray);
    text-decoration: none;
    margin: 6px 0 0;
    padding: 6px 0;
    transition: gap 0.2s ease, color 0.2s ease;
    width: fit-content;
}

.masthead-cta:hover { gap: 14px; }
.masthead-cta strong {
    color: var(--accent);
    font-weight: 600;
    border-bottom: 1px solid rgba(0, 102, 204, 0.25);
    padding-bottom: 1px;
    transition: border-color 0.2s ease;
}
.masthead-cta:hover strong { border-color: var(--accent); }
.masthead-cta-arrow {
    color: var(--accent);
    font-weight: 600;
    font-size: 18px;
    line-height: 1;
}

.masthead-cta--secondary {
    font-size: 13px;
    color: var(--light-gray);
    margin-top: 0;
    gap: 8px;
}
.masthead-cta--secondary .masthead-cta-arrow {
    font-size: 13px;
    color: var(--light-gray);
}
.masthead-cta--secondary strong {
    color: var(--medium-gray);
    font-weight: 500;
    border-bottom-color: rgba(0, 0, 0, 0.12);
}
.masthead-cta--secondary:hover {
    color: var(--medium-gray);
}
.masthead-cta--secondary:hover strong {
    color: var(--accent);
    border-bottom-color: var(--accent);
}
.masthead-cta--secondary:hover .masthead-cta-arrow {
    color: var(--accent);
}

@media (max-width: 820px) {
    .page-masthead {
        margin-top: 32px;
        padding: 0 16px;
    }
    .page-masthead-title {
        font-size: 44px;
        letter-spacing: -1.4px;
    }
    .page-masthead-sub {
        font-size: 14px;
    }
}

.content-area {
    padding: 60px 0 80px;
}

.content-area h1 {
    font-size: 32px;
    font-weight: 700;
    margin: 48px 0 24px;
    color: var(--black);
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.content-area h2 {
    font-size: 28px;
    font-weight: 600;
    margin: 48px 0 24px;
    color: var(--black);
    letter-spacing: -0.3px;
    line-height: 1.3;
}

.content-area h3 {
    font-size: 22px;
    font-weight: 600;
    margin: 32px 0 16px;
    color: var(--black);
    letter-spacing: -0.2px;
    line-height: 1.4;
}

.content-area h4 {
    font-size: 18px;
    font-weight: 600;
    margin: 24px 0 12px;
    color: var(--black);
}

.content-area p {
    font-size: 17px;
    line-height: 1.7;
    margin-bottom: 24px;
    color: var(--dark-gray);
}

.content-area ul, .content-area ol {
    margin: 24px 0;
    padding-left: 24px;
}

.content-area li {
    margin-bottom: 8px;
    color: var(--dark-gray);
    line-height: 1.6;
}

.content-area blockquote {
    border-left: 3px solid var(--accent);
    padding: 24px 32px;
    margin: 32px 0;
    background: var(--off-white);
    border-radius: 0 8px 8px 0;
    font-style: italic;
    color: var(--dark-gray);
    font-size: 16px;
}

.content-area blockquote p {
    margin-bottom: 0;
}

.content-area img {
    max-width: 100%;
    height: auto;
    margin: 32px 0;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.content-area figure {
    margin: 32px 0;
    text-align: center;
    line-height: 1;
}

.content-area figure img {
    margin: 0;
}

.content-area figcaption {
    font-size: 14px;
    color: var(--medium-gray);
    margin-top: 14px;
    margin-bottom: 32px;
    line-height: 1.3;
    font-style: italic;
}

.content-area .figure-scroll {
    display: flex;
    gap: 16px;
    overflow-x: auto;
    padding-bottom: 8px;
    justify-content: center;
}

.content-area .figure-scroll img {
    flex: 0 0 auto;
    margin: 0;
}

@media (max-width: 720px) {
    .content-area .figure-scroll {
        justify-content: flex-start;
    }
}

.content-area a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}

p:has(> em > a[href*="/consulting"]) {
    max-width: 680px;
    margin: 32px auto;
    padding: 16px 20px;
    background: var(--off-white);
    border-left: 3px solid var(--black);
    border-radius: 0 8px 8px 0;
    font-style: normal;
    font-size: 14px;
    line-height: 1.5;
    color: var(--dark-gray);
    text-align: left;
    box-sizing: border-box;
}
p:has(> em > a[href*="/consulting"]) em {
    font-style: normal;
}
p:has(> em > a[href*="/consulting"]) a {
    font-weight: 600;
}
hr:has(+ p > em > a[href*="/consulting"]) {
    display: none;
}

.content-area a:hover {
    border-bottom-color: var(--accent);
}

.content-area strong {
    font-weight: 600;
    color: var(--black);
}

.content-area em {
    font-style: italic;
}

.content-area hr {
    border: none;
    height: 1px;
    background: var(--lighter-gray);
    margin: 48px 0;
}

.content-area code {
    background: var(--off-white);
    padding: 3px 6px;
    border-radius: 4px;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    font-size: 14px;
    color: var(--black);
    border: 1px solid var(--lighter-gray);
}

.content-area pre {
    background: #f6f8fa;
    padding: 24px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 32px 0;
    border: 1px solid #d1d5da;
    font-size: 14px;
    line-height: 1.5;
}

.content-area pre code {
    background: none;
    padding: 0;
    border: none;
    font-size: inherit;
    color: inherit;
}

.content-area pre[class*="language-"] {
    background: #f6f8fa;
}

.content-area code[class*="language-"] {
    color: #24292e;
}

.content-area table {
    width: 100%;
    border-collapse: collapse;
    margin: 32px 0;
    font-size: 15px;
}

.content-area th,
.content-area td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--lighter-gray);
}

.content-area th {
    font-weight: 600;
    color: var(--black);
    background: var(--off-white);
}

.content-area td {
    color: var(--dark-gray);
}

.list-container {
    padding-bottom: 80px;
}

.list-grid {
    display: grid;
    gap: 48px;
}

.list-item {
    display: block;
    text-decoration: none;
    color: inherit;
    padding-bottom: 48px;
    border-bottom: 1px solid var(--lighter-gray);
    transition: opacity 0.2s;
}

.list-item:hover {
    opacity: 0.8;
}

.list-item:last-child {
    border-bottom: none;
}

.list-item-date {
    font-size: 14px;
    color: var(--light-gray);
    margin-bottom: 8px;
}

.list-item-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 12px;
    letter-spacing: -0.3px;
    line-height: 1.3;
}

.list-item-excerpt {
    font-size: 16px;
    color: var(--dark-gray);
    line-height: 1.5;
}

.container-narrow {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 24px;
}

@media (max-width: 768px) {
    .container-narrow {
        max-width: 100%;
        padding: 0 16px;
    }
    .content-area img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    .content-area pre {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
}

.project-hero {
    padding: 48px 0;
    border-bottom: 1px solid var(--lighter-gray);
}

.project-intro {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 60px;
    align-items: start;
}

.project-details {
    background: var(--off-white);
    padding: 32px;
    border-radius: 8px;
}

.project-details h3 {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--medium-gray);
    margin-bottom: 16px;
}

.detail-item {
    margin-bottom: 20px;
}

.detail-label {
    font-size: 14px;
    color: var(--medium-gray);
    margin-bottom: 4px;
}

.detail-value {
    font-size: 15px;
    color: var(--black);
    font-weight: 500;
}

.main {
    min-height: 400px;
}

footer {
    border-top: 1px solid var(--lighter-gray);
    padding: 28px 16px 32px;
    text-align: center;
    color: var(--light-gray);
    font-size: 14px;
}

footer .footer-socials {
    display: flex;
    justify-content: center;
    gap: 12px;
    align-items: baseline;
    flex-wrap: wrap;
    margin: 0 0 10px;
    padding: 0;
    list-style: none;
    font-size: 13px;
}
footer .footer-socials li {
    display: flex;
    align-items: baseline;
    gap: 12px;
}
footer .footer-socials li + li::before {
    content: '·';
    color: var(--lighter-gray);
}
footer .footer-socials a {
    color: var(--light-gray);
    text-decoration: none;
    transition: color 0.2s ease;
}
footer .footer-socials a:hover {
    color: var(--accent);
}
footer .footer-copy {
    margin: 0;
    font-size: 12px;
    color: var(--light-gray);
}

a.direct-link {
    font-family: sans-serif !important;
    text-decoration: none !important;
    font-style: normal !important;
    margin-left: .1em !important;
    font-weight: normal !important;
    color: transparent !important;
    transition: color 0.2s ease !important;
}

.content-area h1:hover a.direct-link,
.content-area h2:hover a.direct-link,
.content-area h3:hover a.direct-link,
.content-area h4:hover a.direct-link,
.content-area h5:hover a.direct-link,
.content-area h6:hover a.direct-link {
    color: #949494 !important;
}

@media print {
    a.direct-link {
        display: none !important;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    header {
        padding: 40px 0;
    }

    h1 {
        font-size: 28px;
    }

    .tagline {
        font-size: 16px;
    }

    .header-nav {
        gap: 16px;
        flex-wrap: wrap;
        font-size: 14px;
    }

    .site-header {
        padding: 16px 0;
    }

    .site-nav {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }

    .site-menu {
        gap: 20px;
        font-size: 14px;
        flex-wrap: wrap;
    }

    .site-logo {
        font-size: 16px;
    }

    .page-header {
        padding: 40px 0 32px;
    }

    .page-title {
        font-size: 28px;
    }

    .list-item-title {
        font-size: 20px;
    }

    .content-area p {
        font-size: 16px;
    }

    .content-area h1 {
        font-size: 28px;
    }

    .content-area h2 {
        font-size: 24px;
    }

    .content-area h3 {
        font-size: 20px;
    }

    .content-area pre {
        padding: 16px;
        font-size: 13px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

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

    .project-intro {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}
.skip-link:focus {
    position: fixed;
    top: 8px;
    left: 8px;
    width: auto;
    height: auto;
    padding: 8px 16px;
    margin: 0;
    overflow: visible;
    clip: auto;
    z-index: 1000;
    background: var(--black);
    color: var(--white);
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    outline: 2px solid var(--white);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}