:root {
  --bg: #0d0f12;
  --surface: #15181d;
  --surface-hover: #1c2027;
  --border: #242832;
  --text: #d4d7dc;
  --text-muted: #7a808a;
  --text-strong: #f0f2f5;
  --accent: #7dd3fc;
  --accent-dim: #4a8fb3;
  --code-bg: #11141a;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "JetBrains Mono", Consolas, "Courier New", monospace;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 1.25rem 6rem;
}

.site-header {
  margin-bottom: 3rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.site-header h1 {
  margin: 0 0 0.25rem;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-strong);
}

.site-header h1 a {
  color: inherit;
  text-decoration: none;
}

.site-header h1 a:hover {
  color: var(--accent);
}

.site-header .tagline {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease, color 0.15s ease;
}

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

.post-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.post-card {
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.post-card:hover {
  border-color: var(--accent-dim);
  background: var(--surface-hover);
}

.post-card h2 {
  margin: 0 0 0.4rem;
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.post-card h2 a {
  color: var(--text-strong);
  border-bottom: none;
}

.post-card h2 a:hover {
  color: var(--accent);
}

.post-meta {
  margin: 0.4rem 0 0.75rem;
}

.date-chip {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.15rem 0.55rem;
  letter-spacing: 0.03em;
}

.post-summary {
  margin: 0;
  color: var(--text);
}

.back-link {
  display: inline-block;
  margin-bottom: 2rem;
  font-size: 0.9rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  border-bottom: none;
}

.back-link:hover {
  color: var(--accent);
  border-bottom: none;
}

article.post {
  color: var(--text);
}

article.post header {
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

article.post h1 {
  margin: 0 0 0.5rem;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--text-strong);
}

article.post .post-meta {
  margin: 0.5rem 0 0;
}

article.post h2 {
  margin: 2.25rem 0 0.75rem;
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-strong);
}

article.post h3 {
  margin: 1.75rem 0 0.5rem;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-strong);
}

article.post p {
  margin: 0 0 1.1rem;
}

article.post ul,
article.post ol {
  margin: 0 0 1.1rem;
  padding-left: 1.5rem;
}

article.post li {
  margin-bottom: 0.35rem;
}

article.post blockquote {
  margin: 1.25rem 0;
  padding: 0.5rem 1rem;
  border-left: 3px solid var(--accent-dim);
  color: var(--text-muted);
  background: var(--surface);
  border-radius: 0 6px 6px 0;
}

article.post code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  padding: 0.15rem 0.4rem;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--accent);
}

article.post pre {
  margin: 1.25rem 0;
  padding: 1rem 1.1rem;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-dim);
  border-radius: 8px;
  overflow-x: auto;
  font-size: 0.9rem;
  line-height: 1.55;
}

article.post pre code {
  padding: 0;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: inherit;
}

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

article.post img {
  max-width: 100%;
  border-radius: 6px;
  border: 1px solid var(--border);
}

article.post table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.95rem;
}

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

article.post th {
  color: var(--text-strong);
  font-weight: 600;
  background: var(--surface);
}

.empty,
.error {
  padding: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.error {
  border-color: #5c2a2a;
  color: #f4b4b4;
}

footer.site-footer {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.easter-egg {
  appearance: none;
  background: transparent;
  border: none;
  padding: 0;
  margin: 0;
  font: inherit;
  color: var(--text-muted);
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: color 0.15s ease, text-shadow 0.15s ease;
}

.easter-egg:hover,
.easter-egg:focus-visible {
  color: var(--accent);
  text-shadow: 0 0 12px rgba(125, 211, 252, 0.35);
  outline: none;
}

.egg-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  animation: egg-fade 0.18s ease-out;
}

.egg-modal[hidden] {
  display: none;
}

.egg-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.egg-modal__content {
  position: relative;
  width: min(1400px, 96vw);
  background: transparent;
  border: none;
  border-radius: 0;
  box-shadow: none;
}

.egg-modal__close {
  position: absolute;
  top: 0.4rem;
  right: 0.6rem;
  z-index: 2;
  appearance: none;
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid var(--border);
  color: var(--text);
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.egg-modal__close:hover,
.egg-modal__close:focus-visible {
  color: var(--accent);
  border-color: var(--accent-dim);
  outline: none;
}

.egg-modal__video {
  display: block;
  width: 100%;
  height: auto;
  max-height: 92vh;
  background: #000;
}

@keyframes egg-fade {
  from { opacity: 0; }
  to   { opacity: 1; }
}

::selection {
  background: var(--accent-dim);
  color: var(--text-strong);
}

@media (max-width: 480px) {
  .wrap {
    padding: 2rem 1rem 4rem;
  }
  article.post h1 {
    font-size: 1.6rem;
  }
  .site-header h1 {
    font-size: 1.3rem;
  }
}