@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;700&display=swap');

:root {
  --bg-color: #0d0d12;
  --container-bg: rgba(25, 25, 35, 0.75);
  --text-main: #e2e2e9;
  --text-muted: #a1a1b5;

  --accent-pink: #ff4d94;
  --accent-pink-glow: rgba(255, 77, 148, 0.3);
  --accent-pink-dark: #cc3d76;

  --code-bg: rgba(25, 25, 35, 0.75);
  --border-color: rgba(255, 255, 255, 0.1);
  --selection-bg: rgba(255, 77, 148, 0.4);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --blur-amount: 12px;
  --container-width: 850px;
}

* {
  box-sizing: border-box;
}

body {
  background-color: var(--bg-color);
  background-image: radial-gradient(circle at top right, #1a1a2e, #0d0d12);
  color: var(--text-main);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.7;
  margin: 0;
  padding: 40px 20px;
  display: flex;
  justify-content: center;
  min-height: 100vh;
}

article {
  max-width: 1000px;
}

::selection {
  background: var(--selection-bg);
  color: #fff;
}

h1, h2, h3, h4, h5, h6 {
  color: #fff;
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-weight: 700;
  line-height: 1.25;
}

h1 {
  font-size: 2.5rem;
  border-bottom: 2px solid var(--accent-pink);
  padding-bottom: 0.8rem;
}
h2 {
  font-size: 1.8rem;
  color: var(--accent-pink);
}
h3 {
  font-size: 1.5rem;
}

a {
  color: var(--accent-pink);
  text-decoration: none;
  transition: color 0.2s ease, text-shadow 0.2s ease;
}

a:hover {
  color: #ff80b3;
  text-shadow: 0 0 8px var(--accent-pink-glow);
}

p { margin-bottom: 1.2rem; }

ul, ol {
  padding-left: 1.5rem;
  margin-bottom: 1.2rem;
}

li { margin-bottom: 0.5rem; }

blockquote {
  margin: 2rem 0;
  padding: 0.1rem 1.5rem;
  border-left: 4px solid var(--accent-pink);
  background: rgba(255, 77, 148, 0.05);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-style: italic;
}

pre {
  background: var(--code-bg);
  background-color: var(--code-bg) !important;
  padding: 1.2rem;
  border-radius: var(--radius-md);
  overflow-x: auto;
  border: 1px solid var(--border-color);
  margin: 1.5rem 0;
}

code {
  font-size: 0.9em;
  background: rgba(255, 255, 255, 0.1);
  padding: 0.2rem 0.4rem;
  border-radius: var(--radius-sm);
  font-style: normal !important;
}

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

pre,
code,
pre span,
code span,
pre [style],
code [style] {
  font-family: 'JetBrains Mono', 'Cascadia Code', 'Source Code Pro', Menlo, Consolas, monospace !important;
  font-style: normal !important;
  font-variant-ligatures: contextual;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
}

th {
  background: rgba(255, 77, 148, 0.1);
  color: var(--accent-pink);
  text-align: left;
}

th, td {
  padding: 12px;
  border: 1px solid var(--border-color);
}

tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.02);
}

hr {
  border: none;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-color), transparent);
  margin: 3rem 0;
}

img {
  max-width: 100%;
  border-radius: var(--radius-md);
  margin: 1.5rem 0;
  border: 1px solid var(--border-color);
}

input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  background-color: transparent;
  margin: 0;
  margin-right: 0.5rem;

  font: inherit;
  color: var(--accent-pink);
  width: 1.25em;
  height: 1.25em;
  border: 2px solid var(--text-muted);
  border-radius: var(--radius-sm);
  transform: translateY(-0.075em);

  display: inline-grid;
  place-content: center;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

input[type="checkbox"]::before {
  content: "";
  width: 0.65em;
  height: 0.65em;
  transform: scale(0);
  transition: 120ms transform ease-in-out;
  box-shadow: inset 1em 1em var(--accent-pink);

  clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
}

input[type="checkbox"]:checked {
  border-color: var(--accent-pink);
}

input[type="checkbox"]:checked::before {
  transform: scale(1);
}

body {
  padding-top: 100px;
}

nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--container-bg);
  backdrop-filter: blur(var(--blur-amount));
  -webkit-backdrop-filter: blur(var(--blur-amount));
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

nav a {
  color: var(--text-main);
  text-decoration: none;
  font-weight: 600;
  margin-left: 20px;
  transition: color 0.2s ease;
}

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

.btn {
  display: inline-block;
  color: #fff;
  padding: 0.6rem 1.2rem;
  border: solid 1px var(--accent-pink);
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s ease;
}

.btn:hover {
  background-color: rgba(255, 255, 255, 0.05);
  text-decoration: none;
}

.btn.disabled {
  color: var(--text-muted);
  cursor: not-allowed;
  border-color: var(--text-muted);
}