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

body {
  font-family: ui-monospace, 'Cascadia Code', 'Source Code Pro', Menlo, Consolas, 'DejaVu Sans Mono', monospace;
  font-size: 1rem;
  line-height: 1.6;
  color: #c8c8c8;
  background: #080808;
  max-width: 800px;
  margin: 2rem auto;
  padding: 0 1rem;
}

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #080808;
  margin-bottom: 2rem;
  border-bottom: 1px solid #222;
  padding-bottom: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

nav {
  display: flex;
  gap: 1.25rem;
}

nav a {
  color: #c8c8c8;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

nav a svg {
  width: 1.2rem;
  height: 1.2rem;
  flex-shrink: 0;
}

nav a span {
  font-size: 0.9rem;
}

nav a:hover,
nav a.active {
  color: #6aadde;
}

.search-toggle {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  color: #c8c8c8;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: inherit;
  font-size: inherit;
}

.search-toggle span {
  font-size: 0.9rem;
}

.search-toggle svg {
  width: 1.2rem;
  height: 1.2rem;
  flex-shrink: 0;
}

.search-toggle:hover {
  color: #6aadde;
}

#search-modal {
  --pagefind-ui-scale: 0.85;
  --pagefind-ui-primary: #6aadde;
  --pagefind-ui-text: #c8c8c8;
  --pagefind-ui-background: #111;
  --pagefind-ui-border: #333;
  --pagefind-ui-tag: #1a1a1a;
  --pagefind-ui-font: ui-monospace, 'Cascadia Code', 'Source Code Pro', Menlo, Consolas, 'DejaVu Sans Mono', monospace;

  background: #111;
  border: 1px solid #333;
  border-radius: 6px;
  padding: 1.25rem;
  width: min(580px, 92vw);
  max-height: 70vh;
  overflow-y: auto;
  color: #c8c8c8;
}

#search-modal::backdrop {
  background: rgba(0, 0, 0, 0.75);
}

footer {
  margin-top: 4rem;
  padding-top: 1rem;
  border-top: 1px solid #222;
  display: flex;
  align-items: center;
  gap: 1rem;
  color: #777;
  font-size: 0.875rem;
}

.contact-links {
  display: flex;
  gap: 0.75rem;
}

.contact-links a {
  color: #777;
  text-decoration: none;
  display: flex;
  align-items: center;
}

.contact-links a svg {
  width: 1.1rem;
  height: 1.1rem;
}

.contact-links a:hover {
  color: #6aadde;
}

a.site-title {
  font-size: 1.4rem;
  font-weight: bold;
  text-decoration: none;
  color: #c8c8c8;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.aperture-logo {
  width: 1.5rem;
  height: 1.5rem;
  flex-shrink: 0;
}

h1, h2, h3, h4 {
  margin-top: 1.5rem;
  line-height: 1.3;
  color: #e0e0e0;
}

h1::before { content: '# ';    color: #555; }
h2::before { content: '## ';   color: #555; }
h3::before { content: '### ';  color: #555; }
h4::before { content: '#### '; color: #555; }

h1 a, h2 a, h3 a, h4 a {
  color: inherit;
  text-decoration: none;
}

h1 a:hover, h2 a:hover, h3 a:hover, h4 a:hover {
  color: inherit;
}

ul {
  list-style: none;
  padding: 0;
}

ul li {
  margin: 0.5rem 0;
  display: flex;
  gap: 1rem;
  align-items: baseline;
}

ul.post-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

ul.post-list li {
  margin: 0;
  border: 1px solid #222;
  border-radius: 4px;
  padding: 0.75rem 1rem;
  flex-direction: column;
  align-items: stretch;
  gap: 0.25rem;
}

.post-meta {
  display: flex;
  align-items: baseline;
  gap: 1rem;
}

.post-description {
  margin: 0;
  font-size: 0.875rem;
  color: #888;
  line-height: 1.4;
}

ul.post-list li:hover {
  border-color: #444;
}

ul li a {
  color: #6aadde;
}

ul li time {
  color: #777;
  font-size: 0.875rem;
  white-space: nowrap;
}

article time {
  color: #777;
  font-size: 0.875rem;
  display: block;
  margin-bottom: 1.5rem;
}

pre {
  background: #1a1a1a;
  padding: 1rem;
  overflow-x: auto;
  border-radius: 4px;
  border: 1px solid #222;
}

code {
  font-family: monospace;
  font-size: 0.9em;
  background: #1a1a1a;
  padding: 0.1em 0.3em;
  border-radius: 2px;
}

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

img {
  max-width: 100%;
}

a {
  color: #6aadde;
}

/* notes section */

body.notes-page {
  max-width: none;
  margin: 0;
  padding: 0;
  --header-height: 3.75rem;
}

body.notes-page > header {
  padding: 0.75rem 1.5rem;
  margin-bottom: 0;
  background: #080808;
}

body.notes-page > footer {
  padding: 1rem 2.5rem 1rem calc(240px + 2.5rem);
  margin-top: 0;
}

.notes-layout {
  display: flex;
  align-items: flex-start;
}

.notes-sidebar {
  position: fixed;
  left: 0;
  top: var(--header-height, 0);
  height: calc(100vh - var(--header-height, 0));
  width: 240px;
  overflow-x: hidden;
  overflow-y: auto;
  border-right: 1px solid #222;
  background: #0d0d0d;
  padding: 1.25rem 1rem;
}

.sidebar-nav {
  display: block;
}

.sidebar-nav a {
  display: block;
  align-items: unset;
  gap: 0;
  color: #666;
  text-decoration: none;
  font-size: 0.875rem;
  padding: 0.2rem 0;
}

.sidebar-nav a:hover {
  color: #c8c8c8;
}

.sidebar-nav a.active {
  color: #6aadde;
}

.sidebar-nav details {
  margin-bottom: 0.5rem;
}

.sidebar-nav summary {
  cursor: pointer;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #999;
  padding: 0.25rem 0;
  list-style: none;
  user-select: none;
}

.sidebar-nav summary::-webkit-details-marker {
  display: none;
}

.sidebar-nav summary::before {
  content: '+ ';
}

.sidebar-nav details[open] > summary::before {
  content: '- ';
}

.sidebar-nav ul {
  list-style: none;
  padding: 0 0 0 0.5rem;
  margin: 0.15rem 0 0.4rem;
}

.sidebar-nav ul li {
  display: block;
  margin: 0;
  gap: 0;
  align-items: unset;
}

.notes-content {
  margin-left: 240px;
  min-width: 0;
  padding: 2rem 2.5rem;
}

@media (max-width: 600px) {
  nav a span,
  .search-toggle span {
    display: none;
  }

  nav {
    gap: 0.75rem;
  }

  a.site-title {
    font-size: 1.1rem;
  }
}

.sidebar-toggle-btn {
  display: none;
}

.disclaimer-box {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  border-radius: 4px;
  border-style: solid;
  border-width: 1px;
  border-left-width: 4px;
  padding: 0.85rem 1rem;
  margin: 1.5rem 0;
}

.disclaimer-icon {
  flex-shrink: 0;
  line-height: 1;
  margin-top: 0.15em;
}

.disclaimer-content strong {
  display: block;
  margin-bottom: 0.25rem;
}

.disclaimer-content p {
  margin: 0;
  font-size: 0.9rem;
}

.disclaimer-red {
  border-color: #c0392b;
  background: rgba(192, 57, 43, 0.08);
}
.disclaimer-red .disclaimer-icon { color: #c0392b; }
.disclaimer-red .disclaimer-content strong { color: #e07070; }
.disclaimer-red .disclaimer-content p { color: #c8a0a0; }

.disclaimer-orange {
  border-color: #c47a1e;
  background: rgba(196, 122, 30, 0.08);
}
.disclaimer-orange .disclaimer-icon { color: #c47a1e; }
.disclaimer-orange .disclaimer-content strong { color: #e09a50; }
.disclaimer-orange .disclaimer-content p { color: #c8b090; }

.disclaimer-green {
  border-color: #2e7d32;
  background: rgba(46, 125, 50, 0.08);
}
.disclaimer-green .disclaimer-icon { color: #2e7d32; }
.disclaimer-green .disclaimer-content strong { color: #60a060; }
.disclaimer-green .disclaimer-content p { color: #90b890; }

@media (max-width: 768px) {
  .sidebar-toggle-btn {
    display: flex;
    position: fixed;
    top: 3.5rem;
    left: 0.75rem;
    z-index: 201;
    background: #0d0d0d;
    border: 1px solid #222;
    border-radius: 4px;
    padding: 0.35rem;
    cursor: pointer;
    color: #c8c8c8;
    align-items: center;
  }

  .sidebar-toggle-btn:hover {
    color: #6aadde;
    border-color: #444;
  }

  .sidebar-toggle-btn svg {
    width: 1.2rem;
    height: 1.2rem;
  }

  .notes-sidebar {
    position: fixed;
    left: -240px;
    top: var(--header-height, 0);
    height: calc(100vh - var(--header-height, 0));
    z-index: 200;
    transition: left 0.25s ease;
    border-bottom: none;
  }

  .notes-sidebar.open {
    left: 0;
  }

  #sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 199;
  }

  #sidebar-overlay.visible {
    display: block;
  }

  .notes-content {
    margin-left: 0;
    padding: 1.5rem 1rem;
  }

  body.notes-page > footer {
    padding: 1rem;
  }
}