/* eminix.org — classic technical documentation aesthetic */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&jetBrains+Mono:wght@400;500&display=swap');

:root {
  /* high contrast light — technical documentation palette */
  --bg: #ffffff;
  --fg: #000000;
  --fg-dim: #4a4a4a;
  --accent: #0066cc;
  --accent-hover: #004499;
  --border: #000000;
  --border-light: #d0d0d0;
  --surface: #f5f5f5;
  --code-bg: #f0f0f0;

  --font-sans: 'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', Courier, monospace;
}

/* dark mode — class toggle or prefers-color-scheme */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0a0a0a;
    --fg: #e8e8e8;
    --fg-dim: #a0a0a0;
    --accent: #6ba3ff;
    --accent-hover: #99c2ff;
    --border: #e8e8e8;
    --border-light: #333333;
    --surface: #141414;
    --code-bg: #1a1a1a;
  }
}

[data-theme="dark"] {
  --bg: #0a0a0a;
  --fg: #e8e8e8;
  --fg-dim: #a0a0a0;
  --accent: #6ba3ff;
  --accent-hover: #99c2ff;
  --border: #e8e8e8;
  --border-light: #333333;
  --surface: #141414;
  --code-bg: #1a1a1a;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

/* --- layout --- */

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* --- nav --- */

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
  border-bottom: 2px solid var(--border);
  margin-bottom: 2.5rem;
}

nav .logo {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1rem;
  color: var(--fg);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

nav ul {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

nav a {
  color: var(--fg);
  text-decoration: none;
  font-size: 0.8125rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color 0.15s ease;
}

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

/* --- main content --- */

main {
  min-height: 60vh;
}

h1 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 1rem;
  line-height: 1.2;
  border-bottom: 2px solid var(--border);
  padding-bottom: 0.5rem;
}

h2 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--fg);
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 0.35rem;
}

h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--fg);
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
  color: var(--fg);
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.15s ease;
}

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

/* --- code --- */

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--code-bg);
  padding: 0.15em 0.35em;
  border: 1px solid var(--border-light);
}

pre {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1rem 1.25rem;
  overflow-x: auto;
  margin: 1.25rem 0;
}

pre code {
  background: none;
  padding: 0;
  border: none;
  font-size: 0.8125rem;
  line-height: 1.5;
}

/* --- tables --- */

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.875rem;
}

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

th {
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  background: var(--surface);
}

/* --- lists --- */

ul, ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.35rem;
}

li::marker {
  color: var(--fg);
}

/* --- blockquote --- */

blockquote {
  border-left: 3px solid var(--border);
  padding-left: 1rem;
  margin: 1.25rem 0;
  color: var(--fg-dim);
  font-style: italic;
}

/* --- hr --- */

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

/* --- footer --- */

.footer {
  margin-top: 4rem;
  padding: 1.5rem 0;
  border-top: 2px solid var(--border);
}

.footer-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-meta a {
  color: var(--fg);
  text-decoration: none;
  font-weight: 600;
}

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

/* --- theme toggle --- */

.theme-toggle {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.5rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  color: var(--fg);
  transition: background 0.15s ease, color 0.15s ease;
}

.theme-toggle:hover {
  background: var(--fg);
  color: var(--bg);
}

/* --- responsive --- */

@media (max-width: 640px) {
  h1 { font-size: 1.5rem; }
  nav { flex-direction: column; gap: 1rem; align-items: flex-start; }
  nav ul { gap: 1rem; }
  .container { padding: 0 1rem; }
  .footer-meta { flex-direction: column; gap: 0.5rem; text-align: center; }
}

/* --- focus --- */

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* --- selection --- */

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

/* --- scrollbar --- */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--surface);
}

::-webkit-scrollbar-thumb {
  background: var(--border-light);
  border: 1px solid var(--border);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--fg-dim);
}