/* LUMP Depot — dark, simple, sharp, snazzier */

:root {
  --bg: #0a0a0b;
  --bg-elevated: #121214;
  --bg-card: #0f0f11;
  --border: #1e1e22;
  --border-focus: #3f3f46;
  --text: #e4e4e7;
  --text-muted: #71717a;
  --accent: #22d3ee;
  --accent-dim: #0891b2;
  --accent-glow: rgba(34, 211, 238, 0.15);
  --link: #22d3ee;
  --link-visited: #a78bfa;
  --code-bg: #18181b;
  --font-sans: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", "Fira Code", monospace;
  --max-width: 720px;
  --space: 1.5rem;
  --radius: 4px;
  --transition: 0.2s ease;
}

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

html {
  font-size: 18px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--link);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), color var(--transition), box-shadow var(--transition);
}

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

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-bottom-color: transparent;
}

a:visited {
  color: var(--link-visited);
}

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

/* Layout */
.site-header {
  border-bottom: 1px solid var(--border);
  padding: var(--space) 0;
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(8px);
  background: rgba(10, 10, 11, 0.9);
}

.site-header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space);
}

.site-title {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.site-title a {
  color: var(--text);
  border: none;
  padding: 0.25rem 0;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

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

.site-logo {
  display: block;
  height: 2rem;
  width: auto;
  object-fit: contain;
}

.site-nav {
  display: flex;
  gap: 0.25rem;
}

.site-nav a {
  font-size: 0.95rem;
  color: var(--text-muted);
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius);
  border: none;
}

.site-nav a:hover {
  color: var(--text);
  background: var(--bg-elevated);
}

.site-nav a[aria-current="page"] {
  color: var(--accent);
  font-weight: 500;
}

main {
  flex: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: calc(var(--space) * 2) var(--space);
  width: 100%;
}

/* Homepage */
.hero {
  margin-bottom: calc(var(--space) * 2);
  padding-bottom: var(--space);
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.hero-logo {
  display: block;
  width: clamp(200px, 45vw, 360px);
  height: auto;
  margin: 0 auto var(--space);
  object-fit: contain;
}

.hero h1 {
  font-size: 1.75rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--text) 0%, var(--text-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .tagline {
  color: var(--text-muted);
  font-size: 1rem;
  margin: 0;
}

/* Page titles */
.page-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 var(--space);
  letter-spacing: -0.02em;
}

.section-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-muted);
  margin: calc(var(--space) * 1.5) 0 var(--space);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.section-title:first-of-type {
  margin-top: 0;
}

/* Blog directory — post cards */
.post-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space);
}

.post-list .post-card {
  padding: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.post-list .post-card:hover {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 1px var(--border-focus);
}

.post-list .post-card:focus-within {
  box-shadow: 0 0 0 2px var(--accent);
}

.post-card .post-card-link {
  display: block;
  padding: var(--space);
  border: none;
  color: inherit;
}

.post-card .post-card-link:hover {
  border: none;
  color: inherit;
}

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

.post-card header {
  margin-bottom: 0.35rem;
}

.post-card .post-meta,
.post-card time {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: 0.4rem;
  letter-spacing: 0.02em;
  display: block;
}

.post-card .post-title {
  font-weight: 600;
  font-size: 1.1rem;
  margin: 0 0 0.35rem;
  line-height: 1.35;
}

.post-card .post-title a {
  border: none;
}

.post-card .post-card-link:hover .post-title {
  color: var(--accent);
}

.post-card .post-excerpt {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

/* List spacing when using cards */
.post-list li {
  list-style: none;
}

/* Blog index "view all" / count */
.blog-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space);
  margin-bottom: var(--space);
}

.blog-header .page-title {
  margin: 0;
}

.blog-all-link {
  font-size: 0.9rem;
  color: var(--text-muted);
  border: none;
}

.blog-all-link:hover {
  color: var(--accent);
}

/* Article (single post) */
.article-header {
  margin-bottom: calc(var(--space) * 1.5);
  padding-bottom: var(--space);
  border-bottom: 1px solid var(--border);
}

.article-title {
  font-size: 1.6rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.article-date {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-muted);
  display: block;
}

.article-body {
  font-size: 1rem;
}

.article-body h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--border);
}

.article-body h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
}

.article-body p {
  margin: 0 0 1rem;
}

.article-body ul,
.article-body ol {
  margin: 0 0 1rem;
  padding-left: 1.5rem;
}

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

.article-body pre,
.article-body code {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.article-body code {
  background: var(--code-bg);
  padding: 0.15em 0.4em;
  border-radius: 2px;
}

.article-body pre {
  background: var(--code-bg);
  padding: var(--space);
  overflow-x: auto;
  margin: 0 0 1rem;
  border-left: 3px solid var(--accent-dim);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.article-body pre code {
  background: none;
  padding: 0;
}

.article-body blockquote {
  margin: 0 0 1rem;
  padding-left: 1rem;
  border-left: 3px solid var(--border);
  color: var(--text-muted);
}

.article-body blockquote.lump-prompt {
  margin: 0 0 var(--space);
  padding: var(--space);
  padding-left: 1rem;
  border-left: 3px solid var(--accent-dim);
  color: var(--text);
  font-style: normal;
}

.article-body blockquote.lump-prompt p {
  margin: 0;
}

.article-body .tldr-line {
  margin-top: var(--space);
  margin-bottom: var(--space);
  padding-top: var(--space);
  border-top: 1px solid var(--border);
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: calc(var(--space) * 2);
  padding: var(--space) 0;
}

.site-footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.site-footer a {
  color: var(--text-muted);
}

.site-footer a:hover {
  color: var(--text);
}

/* About / Contact content */
.prose p {
  margin: 0 0 1rem;
}

.prose ul {
  margin: 0 0 1rem;
  padding-left: 1.5rem;
}

/* Back link */
.back-link {
  display: inline-block;
  margin-bottom: var(--space);
  font-size: 0.9rem;
  color: var(--text-muted);
  border: none;
  padding: 0.25rem 0;
  border-radius: var(--radius);
}

.back-link:hover {
  color: var(--text);
}

/* External link hint */
.external::after {
  content: " ↗";
  font-size: 0.85em;
  opacity: 0.8;
}

/* Responsive */
@media (max-width: 640px) {
  html {
    font-size: 16px;
  }

  .site-header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .article-title {
    font-size: 1.35rem;
  }

  .post-list .post-card {
    padding: var(--space) 1rem;
  }
}