/* ==========================================================================
   Lukas Campos - Personal Website
   Fast, minimal, distinctive
   ========================================================================== */

:root {
    --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;

    --color-bg: #fafafa;
    --color-surface: #ffffff;
    --color-text: #1a1a1a;
    --color-text-muted: #555555;
    --color-link: #0d7d4d;
    --color-link-hover: #0a5c38;
    --color-border: #e0e0e0;
    --color-code-bg: #f0f0f0;
    --color-accent: #0d7d4d;
    --color-accent-light: #e6f4ed;
    --color-accent-glow: rgba(13, 125, 77, 0.1);

    --max-width: 680px;
    --spacing: 1.5rem;
    --radius: 4px;
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #0a0a0a;
        --color-surface: #141414;
        --color-text: #e8e8e8;
        --color-text-muted: #999999;
        --color-link: #34d399;
        --color-link-hover: #6ee7b7;
        --color-border: #262626;
        --color-code-bg: #1a1a1a;
        --color-accent: #34d399;
        --color-accent-light: #0d2818;
        --color-accent-glow: rgba(52, 211, 153, 0.1);
    }
}

/* ==========================================================================
   Base
   ========================================================================== */

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.65;
    color: var(--color-text);
    background-color: var(--color-bg);
}

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

/* ==========================================================================
   Layout
   ========================================================================== */

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

/* ==========================================================================
   Header
   ========================================================================== */

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing) 0;
    margin-bottom: calc(var(--spacing) * 2);
}

.logo {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-text);
    text-decoration: none;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo::before {
    content: "";
    display: inline-block;
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
}

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

.nav {
    display: flex;
    gap: 1.5rem;
}

.nav a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.15s ease;
}

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

/* ==========================================================================
   Main Content
   ========================================================================== */

.main {
    min-height: 60vh;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3 {
    font-weight: 700;
    line-height: 1.3;
    margin-top: calc(var(--spacing) * 2);
    margin-bottom: var(--spacing);
    letter-spacing: -0.02em;
}

h1 { font-size: 1.875rem; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.1rem; }

h1:first-child,
h2:first-child {
    margin-top: 0;
}

p {
    margin: 0 0 var(--spacing);
}

a {
    color: var(--color-link);
    text-decoration: none;
    transition: color 0.15s ease;
}

a:hover {
    color: var(--color-link-hover);
}

ul, ol {
    margin: 0 0 var(--spacing);
    padding-left: 1.5rem;
}

li {
    margin-bottom: 0.5rem;
}

strong {
    font-weight: 600;
}

/* ==========================================================================
   Code
   ========================================================================== */

code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: var(--color-code-bg);
    padding: 0.2em 0.4em;
    border-radius: var(--radius);
}

pre {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.5;
    background: var(--color-code-bg);
    padding: var(--spacing);
    border-radius: var(--radius);
    overflow-x: auto;
    margin: var(--spacing) 0;
    border: 1px solid var(--color-border);
}

pre code {
    background: none;
    padding: 0;
}

.code-block {
    position: relative;
}

.code-block[data-lang]::before {
    content: attr(data-lang);
    position: absolute;
    top: 0.5rem;
    right: 0.75rem;
    font-size: 0.7rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    font-weight: 500;
}

/* ==========================================================================
   Home Page
   ========================================================================== */

.hero {
    margin-bottom: calc(var(--spacing) * 2);
    padding-bottom: calc(var(--spacing) * 2);
    border-bottom: 1px solid var(--color-border);
}

.hero h1 {
    font-size: 2.25rem;
    margin-bottom: 0.5rem;
    letter-spacing: -0.03em;
}

.subtitle {
    color: var(--color-text-muted);
    margin-bottom: 0;
    font-size: 1.05rem;
}

.intro {
    margin-bottom: calc(var(--spacing) * 2);
}

.intro p:first-child {
    font-size: 1.125rem;
    color: var(--color-text);
}

.section {
    margin-bottom: calc(var(--spacing) * 2);
    padding-top: calc(var(--spacing) * 1.5);
    border-top: 1px solid var(--color-border);
}

.section h2 {
    margin-top: 0;
    color: var(--color-accent);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.work-history {
    margin-top: var(--spacing);
}

.work-history h3 {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.work-list {
    list-style: none;
    padding-left: 0;
}

.work-list li {
    padding: 0.75rem 1rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    margin-bottom: 0.75rem;
}

.project {
    margin-bottom: calc(var(--spacing) * 1.25);
    padding: var(--spacing);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
}

.project h3 {
    margin-bottom: 0.5rem;
    margin-top: 0;
    color: var(--color-text);
}

.project p {
    margin-bottom: 0.5rem;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.project-link {
    margin-top: 0.75rem;
    margin-bottom: 0;
}

.project-link a {
    font-size: 0.875rem;
    font-weight: 500;
}

.badge {
    display: inline-block;
    background: var(--color-accent);
    color: white;
    font-size: 0.65rem;
    font-weight: 600;
    padding: 0.25em 0.6em;
    border-radius: var(--radius);
    vertical-align: middle;
    margin-left: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.stack {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

.credentials {
    list-style: none;
    padding-left: 0;
}

.credentials li {
    padding-left: 1.5rem;
    position: relative;
}

.credentials li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.5em;
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
}

.contact-links {
    list-style: none;
    padding-left: 0;
}

.contact-links li {
    margin-bottom: 0.5rem;
}

.contact-links a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
}

.post-list {
    list-style: none;
    padding-left: 0;
}

.post-list li {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
    margin-bottom: 0.75rem;
    padding: 0.5rem 0;
}

.post-list li a {
    color: var(--color-text);
}

.post-list li a:hover {
    color: var(--color-accent);
}

.post-list .date {
    color: var(--color-text-muted);
    font-size: 0.85rem;
    font-family: var(--font-mono);
    white-space: nowrap;
}

/* ==========================================================================
   Story Page
   ========================================================================== */

.story {
    margin-bottom: calc(var(--spacing) * 2);
}

.story p {
    max-width: 60ch;
}

.story p:first-of-type {
    font-size: 1.125rem;
}

.signature {
    font-style: italic;
    margin-top: calc(var(--spacing) * 2);
    color: var(--color-text-muted);
}

.timeline {
    margin-top: calc(var(--spacing) * 2);
}

.timeline h2 {
    color: var(--color-accent);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.timeline-grid {
    display: grid;
    gap: 0;
}

.timeline-item {
    display: grid;
    grid-template-columns: 4.5rem 1fr;
    gap: 1rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-border);
    transition: background 0.15s ease;
}

.timeline-item:hover {
    background: var(--color-accent-glow);
    margin: 0 -0.5rem;
    padding-left: 0.5rem;
    padding-right: 0.5rem;
}

.timeline-item .year {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-accent);
    font-weight: 500;
}

.timeline-item .event {
    font-size: 0.95rem;
}

/* ==========================================================================
   Blog
   ========================================================================== */

.blog-header {
    margin-bottom: calc(var(--spacing) * 2);
}

.blog-header h1 {
    margin-bottom: 0.5rem;
}

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

.blog-list {
    margin-top: calc(var(--spacing) * 1.5);
}

.blog-item {
    padding: calc(var(--spacing) * 1.25) 0;
    border-bottom: 1px solid var(--color-border);
}

.blog-item:first-child {
    padding-top: 0;
}

.blog-item h2 {
    font-size: 1.2rem;
    margin: 0 0 0.5rem;
}

.blog-item h2 a {
    color: var(--color-text);
}

.blog-item h2 a:hover {
    color: var(--color-accent);
}

.blog-item .meta {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
    font-family: var(--font-mono);
}

.blog-item .meta .date::after {
    content: " / ";
    opacity: 0.5;
}

.blog-item .description {
    color: var(--color-text-muted);
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

.tags {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.tag {
    font-size: 0.7rem;
    font-family: var(--font-mono);
    color: var(--color-accent);
    background: var(--color-accent-light);
    padding: 0.25em 0.6em;
    border-radius: var(--radius);
    font-weight: 500;
}

.empty-state {
    color: var(--color-text-muted);
    font-style: italic;
}

/* ==========================================================================
   Post
   ========================================================================== */

.post-header {
    margin-bottom: calc(var(--spacing) * 2);
    padding-bottom: var(--spacing);
    border-bottom: 1px solid var(--color-border);
}

.post-header h1 {
    margin-bottom: 0.75rem;
    font-size: 2rem;
}

.post-header .meta {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 0.75rem;
    font-family: var(--font-mono);
}

.post-header .meta .date::after {
    content: " / ";
    opacity: 0.5;
}

.post-content {
    margin-bottom: calc(var(--spacing) * 2);
}

.post-content h2 {
    margin-top: calc(var(--spacing) * 2.5);
    padding-top: var(--spacing);
    border-top: 1px solid var(--color-border);
}

.post-content h3 {
    margin-top: calc(var(--spacing) * 1.5);
}

.post-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}

.post-content blockquote {
    margin: var(--spacing) 0;
    padding: var(--spacing);
    background: var(--color-accent-light);
    border-left: 3px solid var(--color-accent);
    border-radius: 0 var(--radius) var(--radius) 0;
}

.post-content blockquote p:last-child {
    margin-bottom: 0;
}

.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing) 0;
    font-size: 0.9rem;
}

.post-content th,
.post-content td {
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    text-align: left;
}

.post-content th {
    background: var(--color-surface);
    font-weight: 600;
}

.post-content ul li,
.post-content ol li {
    margin-bottom: 0.5rem;
}

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

/* ==========================================================================
   Writing
   ========================================================================== */

.writing-header {
    margin-bottom: calc(var(--spacing) * 2);
}

.writing-list {
    list-style: none;
    padding-left: 0;
}

.writing-list li {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    align-items: baseline;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-border);
}

.writing-list a {
    flex: 1;
    min-width: 200px;
    color: var(--color-text);
}

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

.writing-list .publication {
    color: var(--color-accent);
    font-size: 0.85rem;
    font-weight: 500;
}

.writing-list .date {
    color: var(--color-text-muted);
    font-size: 0.85rem;
    font-family: var(--font-mono);
}

/* ==========================================================================
   Schmyrczyk Bridge
   ========================================================================== */

.schmyrczyk {
    text-align: center;
    padding: calc(var(--spacing) * 4) 0;
}

.schmyrczyk h1 {
    font-size: 1.5rem;
}

.schmyrczyk .big {
    font-size: 1.2rem;
    margin-bottom: calc(var(--spacing) * 2);
}

.schmyrczyk .cta {
    margin-top: calc(var(--spacing) * 2);
}

.schmyrczyk .cta a {
    display: inline-block;
    padding: 0.875rem 2rem;
    background: var(--color-accent);
    color: white;
    border-radius: var(--radius);
    font-weight: 600;
    transition: background 0.15s ease, transform 0.15s ease;
}

.schmyrczyk .cta a:hover {
    background: var(--color-link-hover);
    text-decoration: none;
    transform: translateY(-1px);
}

/* ==========================================================================
   404
   ========================================================================== */

.not-found {
    text-align: center;
    padding: calc(var(--spacing) * 4) 0;
}

.not-found h1 {
    font-size: 4rem;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
    margin-top: calc(var(--spacing) * 3);
    padding: calc(var(--spacing) * 1.5) 0;
    border-top: 1px solid var(--color-border);
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-content p {
    margin: 0;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--color-text-muted);
    transition: color 0.15s ease;
}

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

.load-time {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 0.5rem;
    opacity: 0.7;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 600px) {
    :root {
        --spacing: 1.25rem;
    }

    .header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .nav {
        gap: 1rem;
    }

    .hero h1 {
        font-size: 1.875rem;
    }

    .post-list li {
        flex-direction: column;
        gap: 0.25rem;
    }

    .timeline-item {
        grid-template-columns: 3.5rem 1fr;
    }

    .timeline-item:hover {
        margin: 0;
        padding-left: 0;
        padding-right: 0;
    }

    .writing-list li {
        flex-direction: column;
        gap: 0.25rem;
    }

    .project {
        padding: var(--spacing);
    }
}

/* ==========================================================================
   Print
   ========================================================================== */

@media print {
    .header,
    .footer,
    .nav {
        display: none;
    }

    body {
        font-size: 12pt;
        background: white;
        color: black;
    }

    a {
        color: inherit;
        text-decoration: underline;
    }

    .project,
    .work-list li {
        border: 1px solid #ccc;
    }
}