A modified markdown theme based on nxxxsooo's opencode theme

opencode.css

/*
 * OpenCode Theme for VSCode Markdown Preview
 * Synced with OpenCode TUI default palette (v1.2.27)
 * Dark theme
 * Based on nxxxsooo  https://github.com/nxxxsooo/opencode-themes
 */

:root {
  /* OpenCode TUI dark palette */
  /* --oc-primary: #fab283;       warm orange */
  /* --oc-accent: #9d7cd8;       purple */

  --oc-accent: #fab283;       /* warm orange */
  --oc-primary: #9d7cd8;       /* purple */

  --oc-secondary: #5c9cf5;    /* blue */
  --oc-red: #e06c75;
  --oc-orange: #f5a742;
  --oc-green: #7ad659;
  --oc-cyan: #56b6c2;
  --oc-yellow: #e5c07b;
  --oc-text: #eeeeee;         /* darkStep12 */
  --oc-text-muted: #808080;   /* darkStep11 */
  --oc-bg1: #0a0a0a;          /* darkStep1 */
  --oc-bg2: #141414;          /* darkStep2 */
  --oc-bg3: #1e1e1e;          /* darkStep3 */
  --oc-bg4: #282828;          /* darkStep4 */
  --oc-border: #484848;       /* darkStep7 */
  --oc-border-active: #606060; /* darkStep8 */
}

body {
  font-size: 15px;
  color: var(--oc-text);
  line-height: 1.8;
  background: var(--oc-bg4);
  -webkit-font-smoothing: antialiased;
  padding-left: 2em;
}

/* Typography
-------------------------------------------------------- */

h1, h2, h3, h4, h5, h6 {
  color: var(--oc-accent);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-left: -22px;
}

h1::before, h2::before, h3::before, h4::before, h5::before, h6::before {
  font-size: 10px;
  font-weight: 700;
  color: var(--oc-text-muted);
  margin-right: 0.6em;
  vertical-align: baseline;
  letter-spacing: 0.02em;
}

h1::before { content: "H1"; }
h2::before { content: "H2"; }
h3::before { content: "H3"; }
h4::before { content: "H4"; }
h5::before { content: "H5"; }
h6::before { content: "H6"; }

h1 {
  margin-top: 1.6em;
  font-size: 2em;
  border-bottom: 1px solid var(--oc-border);
  padding-bottom: 8px;
}

h2 {
  margin-top: 1.8em;
  font-size: 1.5em;
}

h3 {
  margin-top: 1.5em;
  font-size: 1.25em;
}

h4 {
  font-size: 1.1em;
}

strong, b {
  color: var(--oc-orange);
  font-weight: 600;
}

em {
  color: var(--oc-yellow);
}

del {
  color: var(--oc-text-muted);
}

/* Links */
a {
  color: var(--oc-primary);
  text-decoration: none;
}

a:hover {
  color: #ffc09f;
  text-decoration: underline;
}

/* Lists */
ul {
  list-style: disc;
  padding-left: 1.5em;
}

ol {
  padding-left: 1.5em;
}

li::marker {
  color: var(--oc-secondary);
}

/* Blockquote */
blockquote {
  margin-left: 0;
  padding: 12px 16px;
  border-left: 4px solid var(--oc-accent);
  background-color: var(--oc-bg2);
  border-radius: 0 8px 8px 0;
  color: var(--oc-text);
}

/* Code */
code, pre {
  font-size: 0.9em;
}

code {
  background: var(--oc-bg3);
  color: var(--oc-text);
  padding: 2px 6px;
  border-radius: 4px;
}

pre {
  background: var(--oc-bg2);
  border: 1px solid var(--oc-border);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 1.5em;
}

pre code {
  background: transparent;
  padding: 0;
  border-radius: 0;
}

/* Tables */
table {
  margin-bottom: 1.5rem;
  border-collapse: collapse;
  width: 100%;
}

table th,
table td {
  padding: 10px 16px;
  line-height: 1.5;
  vertical-align: top;
  border: 1px solid var(--oc-border);
}

table th {
  font-weight: 700;
  color: var(--oc-accent);
  background-color: var(--oc-bg3);
  background-image:
    repeating-linear-gradient(45deg, transparent, transparent 4px, rgba(157,124,216,0.08) 4px, rgba(157,124,216,0.08) 5px);
}

table td {
  background-color: var(--oc-bg1);
}

table td:first-child {
  color: var(--oc-primary);
  font-weight: normal;
}

table tbody tr:nth-child(even) td {
  background-color: var(--oc-bg1);
}

table tbody tr:nth-child(odd) td {
  background-color: var(--oc-bg2);
}

table tbody tr:hover td {
  background-color: var(--oc-bg3);
}

/* Horizontal rule */
hr {
  border: none;
  border-top: 1px solid var(--oc-border);
  margin: 24px 0;
}

/* Selection */
::selection {
  background-color: rgba(92, 156, 245, 0.3);
}