/* ============================================
   gelbwerk · Design tokens
   ============================================ */
:root{
  --paper: #FAFAF8;
  --paper-dim: #F1EFE9;
  --ink: #14161A;
  --ink-soft: #53575E;
  --ink-faint: #8A8D93;
  --accent: #C9861F;
  --accent-dim: rgba(201,134,31,0.13);
  --green: #3B7A57;
  --line: #E3E0D8;
  --code-bg: #14161A;
  --code-fg: #F1EFE9;

  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --maxw: 760px;
}

[data-theme="dark"]{
  --paper: #14161A;
  --paper-dim: #1D2027;
  --ink: #F1EFE9;
  --ink-soft: #B7B9BE;
  --ink-faint: #7D8087;
  --accent: #E3A83F;
  --accent-dim: rgba(227,168,63,0.16);
  --green: #63B285;
  --line: #2A2D33;
  --code-bg: #0B0C0E;
  --code-fg: #F1EFE9;
}

*{ box-sizing: border-box; }

html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.2s ease, color 0.2s ease;
}

a{ color: inherit; text-decoration: none; }

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

:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ============================================
   Header
   ============================================ */
.site-header{
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 1.5rem;
}

.logo{
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.cursor{
  display: inline-block;
  color: var(--accent);
  animation: blink 1.1s steps(1) infinite;
}

@keyframes blink{
  0%, 49%{ opacity: 1; }
  50%, 100%{ opacity: 0; }
}

.site-nav{
  display: flex;
  align-items: center;
  gap: 1.1rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.site-nav a{ position: relative; }
.site-nav a:hover{ color: var(--accent); }

.icon-toggle{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid var(--line);
  border-radius: 5px;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  width: 1.85rem;
  height: 1.85rem;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.icon-toggle:hover{
  color: var(--accent);
  border-color: var(--accent);
}

.icon-toggle .icon-moon{ display: none; }
[data-theme="dark"] .icon-toggle .icon-sun{ display: none; }
[data-theme="dark"] .icon-toggle .icon-moon{ display: block; }

.search-wrap{
  display: flex;
  align-items: center;
  flex-direction: row-reverse;
}

.search-input{
  width: 0;
  min-width: 0;
  opacity: 0;
  padding: 0;
  margin-right: 0;
  border: 1px solid transparent;
  border-radius: 5px;
  background: var(--paper-dim);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 0.85rem;
  height: 1.85rem;
  pointer-events: none;
  transition: width 0.2s ease, opacity 0.15s ease, margin-right 0.2s ease, padding 0.2s ease, border-color 0.15s ease;
}

.search-wrap.is-open .search-input{
  width: 11rem;
  opacity: 1;
  padding: 0 0.6rem;
  margin-right: 0.5rem;
  border-color: var(--line);
  pointer-events: auto;
}

.search-input:focus{ border-color: var(--accent); }

.search-input::-webkit-search-cancel-button{ cursor: pointer; }

/* ============================================
   Layout shell
   ============================================ */
main{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
  min-height: 60vh;
}

/* ============================================
   Hero / latest entry
   ============================================ */
.hero{
  padding: 2.5rem 0 3rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 2.5rem;
}

.hero-eyebrow{
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--ink-faint);
  margin: 0 0 1rem;
  opacity: 0;
  animation: fadeUp 0.5s ease 0.05s both;
}

.hero-eyebrow::before{
  content: "$ ";
  color: var(--accent);
}

.hero h1{
  font-family: var(--mono);
  font-weight: 800;
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
  opacity: 0;
  animation: fadeUp 0.5s ease 0.15s both;
}

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

.hero p.excerpt{
  color: var(--ink-soft);
  font-size: 1.05rem;
  max-width: 56ch;
  margin: 0 0 1.5rem;
  opacity: 0;
  animation: fadeUp 0.5s ease 0.25s both;
}

.hero .meta-row{
  opacity: 0;
  animation: fadeUp 0.5s ease 0.35s both;
}

@keyframes fadeUp{
  from{ opacity: 0; transform: translateY(8px); }
  to{ opacity: 1; transform: translateY(0); }
}

/* ============================================
   Meta / hash badge
   ============================================ */
.meta-row{
  display: flex;
  align-items: center;
  gap: 0.9rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--ink-faint);
}

.hash-badge{
  color: var(--green);
  background: rgba(59,122,87,0.08);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
}

.read-more{
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.95rem;
  font-weight: 500;
}

.read-more::after{
  content: " →";
  transition: margin-left 0.15s ease;
}

.read-more:hover::after{ margin-left: 3px; }

/* ============================================
   Log list ("tail -f blog.log")
   ============================================ */
.log-heading{
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--ink-faint);
  margin: 0 0 0.5rem;
  text-transform: lowercase;
}

.log-list{
  list-style: none;
  margin: 0 0 2rem;
  padding: 0;
  border-top: 1px solid var(--line);
}

.log-row{
  border-bottom: 1px solid var(--line);
  position: relative;
}

.log-row a{
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 1rem 0 1rem 0.9rem;
  transition: padding-left 0.15s ease, color 0.15s ease;
}

.log-row a::before{
  content: "+";
  position: absolute;
  left: -1px;
  top: 1rem;
  color: var(--accent);
  font-family: var(--mono);
  opacity: 0;
  transition: opacity 0.15s ease;
}

.log-row a:hover{
  padding-left: 1.3rem;
  color: var(--accent);
}

.log-row a:hover::before{ opacity: 1; }

.log-hash{
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--green);
  flex-shrink: 0;
}

.log-title{
  flex: 1;
  font-weight: 500;
}

.log-date{
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
  flex-shrink: 0;
}

/* ============================================
   Article view
   ============================================ */
.article-nav{
  display: block;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--ink-faint);
  margin: 2rem 0 1.5rem;
}

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

.article-nav::before{ content: "cd .. "; color: var(--accent); }

article h1{
  font-family: var(--mono);
  font-weight: 800;
  font-size: clamp(1.6rem, 4.5vw, 2.3rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}

article .meta-row{ margin-bottom: 2.2rem; padding-bottom: 2rem; border-bottom: 1px solid var(--line); }

.article-body{ font-size: 1.05rem; color: var(--ink); }

.article-body p{ margin: 0 0 1.3rem; }

.article-body h2{
  font-family: var(--mono);
  font-size: 1.25rem;
  margin: 2.2rem 0 1rem;
  padding-top: 0.2rem;
}

.article-body h2::before{
  content: "## ";
  color: var(--accent);
}

.article-body h3{
  font-family: var(--mono);
  font-size: 1.05rem;
  margin: 1.8rem 0 0.8rem;
}

.article-body ul, .article-body ol{ margin: 0 0 1.3rem; padding-left: 1.4rem; }
.article-body li{ margin-bottom: 0.4rem; }

.article-body a{ color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }

.article-body code{
  font-family: var(--mono);
  background: var(--paper-dim);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.9em;
}

.article-body pre{
  background: var(--code-bg);
  color: var(--code-fg);
  padding: 1.2rem 1.3rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 0 0 1.5rem;
  font-size: 0.88rem;
  line-height: 1.55;
}

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

.article-body blockquote{
  margin: 0 0 1.5rem;
  padding-left: 1rem;
  border-left: 2px solid var(--accent);
  color: var(--ink-soft);
  font-style: italic;
}

/* ============================================
   About page
   ============================================ */
.about-body{ padding-top: 1rem; }
.about-body h1{
  font-family: var(--mono);
  font-weight: 800;
  font-size: clamp(1.6rem, 4.5vw, 2.3rem);
  margin: 1rem 0 1.3rem;
}
.about-body p{ color: var(--ink-soft); max-width: 60ch; margin: 0 0 1.2rem; font-size: 1.05rem; }

/* ============================================
   Search results
   ============================================ */
.search-heading{
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--ink-faint);
  margin: 2rem 0 0.5rem;
}

.search-results{
  list-style: none;
  margin: 0 0 2rem;
  padding: 0;
  border-top: 1px solid var(--line);
}

.search-result{
  border-bottom: 1px solid var(--line);
}

.search-result a{
  display: block;
  padding: 1.1rem 0.2rem;
  transition: padding-left 0.15s ease;
}

.search-result a:hover{ padding-left: 0.5rem; }

.search-result-title{
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 0.3rem;
}

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

.search-result-excerpt{
  color: var(--ink-soft);
  font-size: 0.92rem;
  margin-bottom: 0.5rem;
}

.search-result .meta-row{ font-size: 0.75rem; }

mark{
  background: var(--accent-dim);
  color: var(--accent);
  padding: 0 0.1em;
  border-radius: 2px;
}

/* ============================================
   Empty state
   ============================================ */
.empty{
  font-family: var(--mono);
  color: var(--ink-faint);
  padding: 3rem 0;
}
.empty::before{ content: "> "; color: var(--accent); }

/* ============================================
   Footer
   ============================================ */
.site-footer{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 520px){
  .log-row a{ flex-wrap: wrap; gap: 0.3rem 1rem; }
  .log-date{ order: 3; width: 100%; }
  .meta-row{ flex-wrap: wrap; row-gap: 0.5rem; }
  .site-header{ flex-wrap: wrap; row-gap: 0.9rem; }
  .site-nav{ flex-wrap: wrap; justify-content: flex-end; row-gap: 0.6rem; }
  .search-wrap.is-open .search-input{ width: 8rem; }
}

/* ============================================
   Reduced motion
   ============================================ */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  .cursor{ animation: none; opacity: 1; }
  .hero-eyebrow, .hero h1, .hero p.excerpt, .hero .meta-row{
    animation: none; opacity: 1; transform: none;
  }
}