:root {
    --ink: #1a1816;
    --ink-light: #2d2a26;
    --ink-lighter: #3d3833;
    --paper: #fdfaf6;
    --paper-dark: #f5f0e8;
    --paper-darker: #e5ddd3;
    --accent: #EE7733;
    --accent-hover: #d46b2d;
    --accent-light: #f5dcc8;
    --muted: #8c857d;
    --muted-light: #a8a095;
    --border: #e5ddd3;
    --code-bg: #1a1816;
    --code-text: #f5f0e8;
    --sidebar-bg: #faf8f4;
    --focus: #eb780d;
    --success: #2e7d32;
    --warning: #c66b4d;
}

@font-face {
    font-family: 'AnthropicSerif';
    src: url('fonts/AnthropicSerifWebText.ttf') format('truetype');
    font-weight: 400 700;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'AnthropicSans';
    src: url('fonts/AnthropicSansWebText.ttf') format('truetype');
    font-weight: 400 700;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'AnthropicMono';
    src: url('fonts/AnthropicMonoVariable.ttf') format('truetype');
    font-weight: 400 700;
    font-style: normal;
    font-display: swap;
}

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

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .reveal { opacity: 1 !important; transform: none !important; transition: none !important;}
}

body {
    font-family: 'AnthropicSerif', 'Times New Roman', Times, serif;
    font-size: 1.3rem;
    line-height: 1.5;
    color: var(--ink);
    background: var(--paper);
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a{
    color: var(--focus);
    font-family: "AnthropicSerif";
}

h1 {
    padding-top: 10px;
    padding-bottom: 10px;
}

h2 {
    margin-top: 40px;
    margin-bottom: 20px;
}

h3 {
    margin-top: 40px;
    margin-bottom: 20px;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0px 0px 0px;
    display: flex;
    flex-direction: column;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: 'AnthropicMono', monospace;
    font-size: 13px;
    color: var(--muted);
    text-decoration: none;
    margin-bottom: 40px;
    transition: color 0.2s ease, gap 0.2s ease;
}

.back-link:hover { color: var(--accent); gap: 12px; }
.back-link svg { width: 16px; height: 16px; stroke: currentColor; stroke-width: 2; fill: none; }

.site-header { 
    margin-bottom: 56px; 
    padding-top: 100px;
    padding-left: 40px;
    padding-right: 40px;
    padding-bottom: 100px;
}

.site-header h1 {
    font-family: 'AnthropicSerif', Georgia, serif;
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--ink);
    margin-bottom: 16px;
}

.tagline {
    font-family: 'AnthropicSerif';
    font-size: 1.3rem;
    line-height: 1.4;
    font-weight: 200;
    color: var(--ink);
    background-color: var(--accent-light);
    display: block;
    padding: 10px;
}

.reliability-statement {
    font-size: 19px;
    line-height: 1.7;
    color: var(--ink-light);
    max-width: 72ch;
    margin-top:10px;
    margin-bottom: 24px;
    background-color: var(--accent-light);
}

.project-meta {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-family: 'AnthropicMono', monospace;
    font-size: 13px;
    color: var(--muted);
    background-color: var(--accent-light);
}

.project-meta .tag {
    font-weight: 600;
    color: var(--ink);
}

.layout-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
}

@media (min-width: 900px) {
    .layout-grid { grid-template-columns: 1fr 280px; }
}

.main-content { min-width: 0; }

.sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
    position: sticky;
    top: 32px;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    padding-left: 24px;
    border-left: 1px solid var(--border);
}

@media (max-width: 899px) {
    .sidebar { position: static; border-left: none; border-top: 1px solid var(--border); padding-left: 0; padding-top: 24px; max-height: none; }
}

.sidebar section {
    background: var(--sidebar-bg);
    padding: 20px 24px;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.sidebar h4 {
    font-family: 'AnthropicSans', -apple-system, sans-serif;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ink);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.meta-list { list-style: none; }
.meta-list li {
    font-family: 'AnthropicSerifWebText';
    font-size: 1rem;
    line-height: 1.5;
    color: var(--ink-light);
}
.meta-list strong { color: var(--ink); }

.content-section {
    margin-bottom: 56px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border);
}

.content-section:last-of-type { border-bottom: none; }

.section-num {
    display: inline-block;
    font-family: 'AnthropicMono', monospace;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 12px;
}

.content-section h2 {
    font-family: 'AnthropicSerif', Georgia, serif;
    font-size: clamp(24px, 3.5vw, 32px);
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.01em;
    color: var(--ink);
    margin-bottom: 20px;
}

.content-section p { color: var(--ink-light); margin-bottom: 16px; }
.content-section p:last-child { margin-bottom: 0; }
.content-section a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.content-section a:hover { color: var(--accent-hover); }
.content-section code {
    font-family: 'AnthropicMono', monospace;
    font-size: 0.9em;
    background: var(--accent-light);
    color: var(--accent);
    padding: 2px 6px;
    border-radius: 4px;
}
.content-section pre code { background: none; color: inherit; padding: 0; }

.impact-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin: 24px 0;
}

@media (min-width: 600px) {
    .impact-row { grid-template-columns: repeat(3, 1fr); }
}

.impact-card {
    background: var(--ink);
    color: var(--paper);
    padding: 24px;
    border-radius: 8px;
    border: 1px solid var(--ink-lighter);
}

.impact-card .metric {
    display: block;
    font-family: 'AnthropicSans', -apple-system, sans-serif;
    font-size: 28px;
    font-weight: 700;
    line-height: 1.1;
    color: var(--accent);
    margin-bottom: 8px;
}

.impact-card .label {
    font-family: 'AnthropicMono', monospace;
    font-size: 13px;
    line-height: 1.5;
    color: var(--muted-light);
}

.callout {
    background: var(--sidebar-bg);
    border-left: 3px solid var(--accent);
    padding: 16px 20px;
    margin: 24px 0;
    border-radius: 0 8px 8px 0;
}

.callout p { margin: 0; font-size: 15px; color: var(--ink-light); }
.callout strong { color: var(--ink); }

.decision-flow, .diagram-container { margin: 24px 0; }

.diagram-label {
    display: block;
    font-family: 'AnthropicMono', monospace;
    font-size: 12px;
    color: var(--muted);
    text-align: center;
    margin-top: 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.perf-table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
.perf-table th, .perf-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border); }
.perf-table th {
    font-family: 'AnthropicSans', -apple-system, sans-serif;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    background: var(--sidebar-bg);
}
.perf-table td { font-family: 'AnthropicMono', monospace; color: var(--ink-light); }
.perf-table tr:last-child td { border-bottom: none; }
.perf-table tr.highlight { background: var(--accent-light); }
.perf-table tr.highlight td { color: var(--ink); font-weight: 600; }

.capabilities-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin: 24px 0;
}

@media (min-width: 600px) {
    .capabilities-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
    .capabilities-grid { grid-template-columns: repeat(3, 1fr); }
}

.capability {
    background: var(--sidebar-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
}

.capability h3 {
    font-family: 'AnthropicSans', -apple-system, sans-serif;
    font-size: 14px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 8px;
}

.capability p { font-size: 14px; color: var(--ink-light); margin: 0; }

.image-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin: 24px 0;
}

@media (min-width: 700px) {
    .image-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1000px) {
    .image-grid { grid-template-columns: repeat(3, 1fr); }
}

.image-grid figure { margin: 0; }
.image-grid img { width: 100%; height: auto; display: block; border-radius: 4px; border: 1px solid var(--border); }
.image-grid figcaption {
    font-family: 'AnthropicMono', monospace;
    font-size: 12px;
    color: var(--muted);
    text-align: center;
    margin-top: 8px;
}

.placeholder-diagram { border: 1px dashed var(--border); border-radius: 8px; padding: 40px; background: var(--sidebar-bg); }

.caption {
    font-family: 'AnthropicMono', monospace;
    font-size: 12px;
    color: var(--muted);
    margin-top: 12px;
}

caption a { color: var(--accent); }

pre[data-label] {
    position: relative;
    background: var(--code-bg);
    border-radius: 8px;
    overflow: hidden;
    margin: 24px 0;
    border: 1px solid var(--ink-lighter);
}

pre[data-label]::before {
    content: attr(data-label);
    display: block;
    font-family: 'AnthropicMono', monospace;
    font-size: 11px;
    font-weight: 600;
    color: var(--muted);
    background: var(--ink-light);
    padding: 8px 16px;
    border-bottom: 1px solid var(--ink-lighter);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

pre code {
    display: block;
    padding: 20px;
    overflow-x: auto;
    font-family: 'AnthropicMono', monospace;
    font-size: 13px;
    line-height: 1.6;
    color: var(--code-text);
}

.code-comment { color: #6a655d; }
.code-keyword { color: #c678dd; }
.code-type { color: #e5c07b; }
.code-fn { color: #61afef; }
.code-str { color: #98c379; }

.impact-list {
    list-style: none;
    margin: 24px 0;
    padding-left: 0;
}

.impact-list li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 16px;
    color: var(--ink-light);
    line-height: 1.7;
}

.impact-list li::before {
    content: "—";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-family: 'AnthropicMono', monospace;
}

.impact-list strong { color: var(--ink); }

.github-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: 'AnthropicSans', -apple-system, sans-serif;
    font-size: 14px;
    font-weight: 600;
    color: var(--ink);
    background: var(--accent-light);
    border: 1px solid var(--accent);
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    margin-top: 16px;
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.github-cta:hover { background: var(--accent); border-color: var(--accent); color: var(--paper); }
.github-cta svg { width: 20px; height: 20px; stroke: currentColor; stroke-width: 2; fill: none; }

.cert-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin: 24px 0;
}

@media (min-width: 900px) {
    .cert-grid { grid-template-columns: repeat(3, 1fr); }
}

.cert-card {
    background: var(--sidebar-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.cert-card:hover { border-color: var(--accent); box-shadow: 0 8px 24px rgba(30, 28, 26, 0.08); }

.cert-card h3 {
    font-family: 'AnthropicSans', -apple-system, sans-serif;
    font-size: 15px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 8px;
}

.cert-card p { font-size: 14px; color: var(--ink-light); margin-bottom: 16px; }

.cert-link {
    font-family: 'AnthropicMono', monospace;
    font-size: 12px;
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease;
}

.cert-link:hover { border-color: var(--accent); }

.site-footer {
    margin-top: 64px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
    text-align: center;
    font-family: 'AnthropicMono', monospace;
    font-size: 13px;
    color: var(--muted);
}

.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.active { opacity: 1; transform: translateY(0); }

@media (max-width: 599px) {
    .container { padding: 32px 20px 60px; }
    .sidebar { padding-left: 0; }
    .sidebar section { padding: 16px 20px; }
    pre code { font-size: 12px; padding: 16px; }
    .impact-row { grid-template-columns: 1fr; }
}

::selection { background: var(--accent-light); color: var(--ink); }

:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

/* Index page styles */
.project-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    padding-left: 20px;
    gap: 24px;
}

.project-list li { padding-bottom: 24px; border-bottom: 1px solid var(--border); }
.project-list li:last-child { border-bottom: none; padding-bottom: 0; }

.project-list h3 {
    font-family: 'AnthropicSerif', Georgia, serif;
    font-size: clamp(20px, 2.5vw, 24px);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 8px;
}

.project-list h3 a { color: var(--ink); text-decoration: none; transition: color 0.2s ease; }
.project-list h3 a:hover { color: var(--accent); }

.project-desc {
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.3;
    padding-left: 10px;
}

.competency-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 24px;
    flex: 1;
}

@media (min-width: 600px) {
    .competency-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1000px) {
    .competency-grid { grid-template-columns: repeat(2, 1fr); }
}

.competency-card {
    background: var(--sidebar-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.competency-card:hover { border-color: var(--accent); box-shadow: 0 8px 24px rgba(30, 28, 26, 0.08); }

.competency-card h4 {
    font-family: 'AnthropicSans', -apple-system, sans-serif;
    font-size: 14px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 12px;
}

.competency-card ul { list-style: none; margin: 0; padding: 0; }
.competency-card li {
    font-family: 'AnthropicMono', monospace;
    font-size: 12px;
    color: var(--ink-light);
    line-height: 2;
}

.reveal{
    padding-left: 20px;
}

.reveal-delay-1 { transition-delay: 0.05s; }
.reveal-delay-2 { transition-delay: 0.1s; }
.reveal-delay-3 { transition-delay: 0.15s; }
.reveal-delay-4 { transition-delay: 0.2s; }
.reveal-delay-5 { transition-delay: 0.25s; }
.reveal-delay-6 { transition-delay: 0.3s; }


.image_card{
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: 10px;
    display: block;
    margin-bottom: 12px;
}

#main-page{
    background-image: url(images/image_1.jpg);
}

#surrogate-model{
    background-image: url(images/image_5.jpg);
}