fix: docs styling

docs/_config.yml

@@ -2,3 +2,5 @@ title: MC Plugin Update Notifier
 description: Multi-source update checker library for Minecraft plugins
 theme: minima
 markdown: kramdown
+minima:
+  skin: dark

docs/assets/main.scss

@@ -0,0 +1,112 @@
+---
+---
+@import "minima";
+
+:root {
+  --bg: #0b1220;
+  --surface: #111a2e;
+  --surface-2: #17233d;
+  --text: #dbe8ff;
+  --muted: #9cb4da;
+  --accent: #4ea1ff;
+  --accent-2: #78b8ff;
+  --border: #27416f;
+  --code-bg: #0d172a;
+  --code-border: #2d4f86;
+}
+
+html,
+body {
+  background: radial-gradient(circle at top right, #142a52 0%, var(--bg) 35%, #080d18 100%);
+  color: var(--text);
+}
+
+.site-header,
+.site-footer {
+  background: rgba(9, 15, 28, 0.85);
+  border-color: var(--border);
+}
+
+.site-title,
+.site-title:visited,
+.page-link,
+.page-link:visited {
+  color: var(--accent-2);
+}
+
+.page-content {
+  background: rgba(12, 20, 36, 0.75);
+  border: 1px solid var(--border);
+  border-radius: 12px;
+  padding: 1.25rem;
+  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
+}
+
+h1,
+h2,
+h3,
+h4 {
+  color: #e7f0ff;
+}
+
+a,
+a:visited {
+  color: var(--accent);
+}
+
+a:hover {
+  color: #9bcaff;
+}
+
+p,
+li {
+  color: var(--text);
+}
+
+pre,
+code {
+  font-family: "JetBrains Mono", "Fira Code", "Cascadia Code", "SFMono-Regular", Consolas, monospace;
+}
+
+code {
+  background: rgba(78, 161, 255, 0.12);
+  border: 1px solid rgba(78, 161, 255, 0.3);
+  color: #d7eaff;
+  border-radius: 6px;
+  padding: 0.1rem 0.35rem;
+}
+
+div.highlighter-rouge,
+pre.highlight,
+pre {
+  background: var(--code-bg) !important;
+  border: 1px solid var(--code-border);
+  border-radius: 10px;
+  box-shadow: inset 0 0 0 1px rgba(120, 184, 255, 0.08), 0 8px 24px rgba(4, 8, 18, 0.5);
+}
+
+pre code {
+  background: transparent;
+  border: 0;
+  padding: 0;
+  color: #dcecff;
+}
+
+.highlight .k,
+.highlight .kd,
+.highlight .kt,
+.highlight .nt {
+  color: #8ec5ff;
+}
+
+.highlight .s,
+.highlight .s1,
+.highlight .s2 {
+  color: #9ad7ff;
+}
+
+.highlight .c,
+.highlight .c1,
+.highlight .cm {
+  color: #6f8bb8;
+}