/* ===========================
   Custom Properties
   =========================== */

:root {
  /* Typography */
  --font-serif: Georgia, 'Times New Roman', serif;
  --font-sans: 'Helvetica Neue', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;

  /* Colors */
  --color-text: #1a1a1a;
  --color-text: oklch(0.22 0 0);
  --color-text-muted: #6b6b6b;
  --color-text-muted: oklch(0.53 0.005 75);
  --color-bg: #f8f7f5;
  --color-bg: oklch(0.976 0.003 85);
  --color-surface: #ffffff;
  --color-surface: oklch(1.00 0 0);
  --color-border: #e5e5e5;
  --color-border: oklch(0.92 0.003 75);
  --color-accent: #c9a96e;
  --color-accent: oklch(0.75 0.085 82);
  --color-code-bg: #f5f5f0;
  --color-code-bg: oklch(0.97 0.007 107);

  /* Syntax Highlighting — Gruvbox Light */
  --hl-base: #282828;
  --hl-base: oklch(0.28 0 0);
  --hl-red: #9d0006;
  --hl-red: oklch(0.44 0.179 28);
  --hl-comment: #928374;
  --hl-comment: oklch(0.62 0.029 67);
  --hl-green: #427b58;
  --hl-green: oklch(0.53 0.082 155);
  --hl-olive: #79740e;
  --hl-olive: oklch(0.55 0.112 107);
  --hl-purple: #8f3f71;
  --hl-purple: oklch(0.49 0.124 344);
  --hl-amber: #b57614;
  --hl-amber: oklch(0.62 0.128 71);
  --hl-orange: #af3a03;
  --hl-orange: oklch(0.51 0.162 39);
  --hl-teal: #076678;
  --hl-teal: oklch(0.47 0.082 216);

  /* Layout */
  --max-width: 960px;
  --prose-width: 720px;
  --padding-x: 1.5rem;
  --padding-y: 4rem;
}

@media (color-gamut: p3) {
  :root {
    --color-accent: oklch(0.75 0.130 82);
    --hl-red: oklch(0.44 0.200 28);
    --hl-orange: oklch(0.51 0.190 39);
    --hl-teal: oklch(0.47 0.110 216);
  }
}

/* ===========================
   Reset & Base
   =========================== */

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

html {
  font-family: var(--font-sans);
  font-size: 106.25%; /* 17px base */
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  max-width: var(--max-width);
  margin: 0 auto 0 10vw;
  padding: var(--padding-y) var(--padding-x);
}

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

h1, h2, h3 {
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h1 {
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

h2 {
  font-size: 1.35rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}

h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--color-text);
  text-decoration-color: var(--color-border);
  text-underline-offset: 0.15em;
  transition: text-decoration-color 0.2s ease;
}

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

/* ===========================
   Header & Navigation
   =========================== */

header {
  margin-bottom: 4rem;
}

header nav {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

header nav a {
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  transition: color 0.2s ease;
}

header nav a:hover {
  color: var(--color-text);
}

header nav a.site-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.site-identity {
  display: flex;
  flex-direction: column;
}

.site-tagline {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.site-nav {
  display: flex;
  gap: 1.25rem;
}

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

main {
  min-height: 60vh;
}

/* ===========================
   Hero Section
   =========================== */

.hero {
  margin-bottom: 4rem;
}

.hero-bio {
  font-family: var(--font-serif);
  max-width: 50%;
  color: var(--color-text-muted);
  line-height: 1.75;
}

.hero-bio a {
  text-decoration-color: var(--color-accent);
}

.section-divider {
  display: none;
}

/* ===========================
   Journal Grid
   =========================== */

.journal-grid {
  display: grid;
  grid-template-columns: 5rem 1fr;
}

.journal-grid-row {
  display: grid;
  grid-template-columns: subgrid;
  grid-column: 1 / -1;
  align-items: baseline;
  padding: 0.65rem 0.5rem;
  border-bottom: 1px solid var(--color-border);
  text-decoration: none;
  color: var(--color-text);
  transition: background-color 0.15s ease;
}

.journal-grid-row:hover {
  background-color: var(--color-code-bg);
}

.journal-grid-year-start {
  padding-top: 1.25rem;
}

.journal-grid-year {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.journal-grid-title {
  font-weight: 500;
  font-size: 1.05rem;
}

/* ===========================
   Article Page
   =========================== */

.article {
  max-width: var(--prose-width);
}

.article-header {
  padding-bottom: 2rem;
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--color-accent);
}

.article-header time {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.article-header h1 {
  font-size: 2.4rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  padding-top: 0.5rem;
}

.article-description {
  color: var(--color-text-muted);
  font-size: 1.15rem;
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

/* Prose styling for article body */
.prose {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  line-height: 1.75;
}

.prose h2 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
}

.prose h3 {
  font-size: 1.2rem;
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}

.prose p {
  margin-bottom: 1.25rem;
}

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

.prose ul,
.prose ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.prose li {
  margin-bottom: 0.35rem;
}

.prose blockquote {
  border-left: 3px solid var(--color-accent);
  padding-left: 1.25rem;
  margin: 1.5rem 0;
  color: var(--color-text-muted);
  font-style: italic;
}

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

.prose img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  margin: 1.5rem 0;
}

.prose hr {
  border: none;
  border-top: 1px solid var(--color-accent);
  margin: 2.5rem 0;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
}

.prose th,
.prose td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--color-accent);
  text-align: left;
}

.prose th {
  font-weight: 600;
}

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

code {
  font-family: var(--font-mono);
  font-size: 0.85em;
}

:not(pre) > code {
  background: var(--color-code-bg);
  padding: 0.15em 0.35em;
  border-radius: 3px;
}

pre.highlight {
  background: var(--color-code-bg);
  padding: 1.25rem;
  overflow-x: auto;
  margin-bottom: 1.25rem;
  border-radius: 6px;
  font-size: 0.85rem;
  line-height: 1.55;
}

/* Gruvbox Light — syntax highlighting (Rouge) */
.highlight, .highlight .w {
  color: var(--hl-base);
}
.highlight .err {
  color: var(--hl-red);
  font-weight: bold;
}
.highlight .c, .highlight .ch, .highlight .cd, .highlight .cm, .highlight .cpf, .highlight .c1, .highlight .cs {
  color: var(--hl-comment);
  font-style: italic;
}
.highlight .cp {
  color: var(--hl-green);
}
.highlight .nt {
  color: var(--hl-red);
}
.highlight .o, .highlight .ow {
  color: var(--hl-base);
}
.highlight .p, .highlight .pi {
  color: var(--hl-base);
}
.highlight .gi {
  color: var(--hl-olive);
}
.highlight .gd {
  color: var(--hl-red);
}
.highlight .gh {
  color: var(--hl-olive);
  font-weight: bold;
}
.highlight .ge {
  font-style: italic;
}
.highlight .ges {
  font-weight: bold;
  font-style: italic;
}
.highlight .gs {
  font-weight: bold;
}
.highlight .k, .highlight .kn, .highlight .kp, .highlight .kr, .highlight .kv {
  color: var(--hl-red);
}
.highlight .kc {
  color: var(--hl-purple);
}
.highlight .kt {
  color: var(--hl-amber);
}
.highlight .kd {
  color: var(--hl-orange);
}
.highlight .s, .highlight .sb, .highlight .sc, .highlight .dl, .highlight .sd, .highlight .s2, .highlight .sh, .highlight .sx, .highlight .s1 {
  color: var(--hl-olive);
  font-style: italic;
}
.highlight .si {
  color: var(--hl-olive);
  font-style: italic;
}
.highlight .sr {
  color: var(--hl-olive);
  font-style: italic;
}
.highlight .sa {
  color: var(--hl-red);
}
.highlight .se {
  color: var(--hl-orange);
}
.highlight .nn {
  color: var(--hl-green);
}
.highlight .nc {
  color: var(--hl-green);
}
.highlight .no {
  color: var(--hl-purple);
}
.highlight .na {
  color: var(--hl-olive);
}
.highlight .m, .highlight .mb, .highlight .mf, .highlight .mh, .highlight .mi, .highlight .il, .highlight .mo, .highlight .mx {
  color: var(--hl-purple);
}
.highlight .ss {
  color: var(--hl-teal);
}

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

footer {
  margin-top: 5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-accent);
}

footer p {
  display: flex;
  gap: 1.25rem;
}

footer a {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

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

@media (max-width: 600px) {
  :root {
    --padding-x: 1rem;
    --padding-y: 2rem;
  }

  body {
    margin: 0 auto;
  }

  header {
    margin-bottom: 2.5rem;
  }

  .hero-bio {
    max-width: 100%;
  }

  .journal-grid {
    grid-template-columns: 1fr;
  }

  .journal-grid-year {
    display: none;
  }

  .article-header h1 {
    font-size: 1.6rem;
  }

  footer {
    margin-top: 3rem;
  }
}