/* tokens */
:root {
  --bg:        #0b0b0b;
  --bg-soft:   #141414;
  --fg:        #e6e6e6;
  --fg-dim:    #9a9a9a;
  --rule:      #2a2a2a;
  --inv-bg:    #e6e6e6;
  --inv-fg:    #0b0b0b;
  --font: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
          "DejaVu Sans Mono", "Liberation Mono", monospace;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg:      #f4f4f4;
    --bg-soft: #e9e9e9;
    --fg:      #141414;
    --fg-dim:  #4a4a4a;
    --rule:    #d4d4d4;
    --inv-bg:  #141414;
    --inv-fg:  #f4f4f4;
  }
}
html[data-theme="light"] {
  --bg:      #f4f4f4;
  --bg-soft: #e9e9e9;
  --fg:      #141414;
  --fg-dim:  #4a4a4a;
  --rule:    #d4d4d4;
  --inv-bg:  #141414;
  --inv-fg:  #f4f4f4;
}
html[data-theme="dark"] {
  --bg:        #0b0b0b;
  --bg-soft:   #141414;
  --fg:        #e6e6e6;
  --fg-dim:    #9a9a9a;
  --rule:      #2a2a2a;
  --inv-bg:    #e6e6e6;
  --inv-fg:    #0b0b0b;
}

/* reset */
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; }

/* base */
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
}

/* layout */
.wrap {
  max-width: 72ch;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* skip link */
.skip {
  position: absolute;
  top: -999px;
  left: 1rem;
  background: var(--inv-bg);
  color: var(--inv-fg);
  padding: 0.25em 0.5em;
  text-decoration: none;
}
.skip:focus { top: 0.5rem; }

/* links */
a {
  color: var(--fg);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}
a:hover, a:focus-visible {
  background: var(--inv-bg);
  color: var(--inv-fg);
  text-decoration: none;
  outline: none;
  /* two side shadows instead of horizontal padding: same 0.2em of inverted
     background, but no change to the inline box, so hovering a link inside a
     paragraph no longer reflows the text around it */
  box-shadow: 0.2em 0 0 var(--inv-bg), -0.2em 0 0 var(--inv-bg);
}
a:focus-visible { outline: 2px solid var(--fg); outline-offset: 1px; }

/* header */
header {
  border-bottom: 1px solid var(--rule);
  padding: 1rem 0;
  margin-bottom: 2rem;
}
.prompt-line {
  display: flex;
  align-items: center;
  gap: 1ch;
  margin-bottom: 0.75rem;
  font-size: 0.875rem;
  color: var(--fg-dim);
}
.prompt-prefix { white-space: nowrap; }
.prompt-line .host { color: var(--fg-dim); }
.prompt-line .path { color: var(--fg); }
.prompt-line .cmd  { color: var(--fg); }

nav { display: flex; flex-wrap: wrap; gap: 0.25rem; }
nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 0.25em;
  text-decoration: none;
  color: var(--fg-dim);
}
nav a:hover, nav a:focus-visible, nav a.active {
  background: var(--inv-bg);
  color: var(--inv-fg);
  outline: none;
}
nav a:focus-visible { outline: 2px solid var(--fg); }

/* caret */
@keyframes blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }
.caret { animation: blink 1s step-end infinite; }
@media (prefers-reduced-motion: reduce) { .caret { animation: none; } }

/* main */
main { padding-bottom: 3rem; }

/* man page */
.man-header {
  display: flex;
  justify-content: space-between;
  color: var(--fg-dim);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}
.man-section { margin: 1.5rem 0; }
.man-section h2 {
  font-size: 1.125rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 0.5rem;
}
.man-section p, .man-section dl { margin: 0 0 0.5rem; padding-left: 2ch; }

/* logo on home page */
.name-section { position: relative; }
.logo-aside {
  float: right;
  margin: 0 0 1rem 1.5rem;
  width: 160px;
  height: auto;
  border: 1px solid var(--rule);
  border-radius: 2px;
}
@media (max-width: 480px) { .logo-aside { display: none; } }

/* name headline */
.name-line {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: bold;
}

/* see also list */
.see-also { padding-left: 2ch; }
.see-also > div {
  display: grid;
  grid-template-columns: 14ch 1fr;
  gap: 0.5rem;
  min-height: 44px;
  align-items: center;
}
@media (max-width: 480px) {
  .see-also > div { grid-template-columns: 1fr; min-height: auto; padding: 0.5rem 0; }
  .see-also dd { display: none; }
}
.see-also dt { font-weight: normal; }
.see-also dd { margin: 0; color: var(--fg-dim); }

/* shell transcript (listing pages) */
.transcript-cmd {
  color: var(--fg-dim);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}
.transcript-cmd .cmd { color: var(--fg); }

.listing { list-style: none; padding: 0; margin: 0; }
.listing li {
  display: grid;
  grid-template-columns: 12ch 1fr;
  gap: 0.5ch;
  min-height: 44px;
  align-items: center;
  border-bottom: 1px solid var(--rule);
}
.listing li:last-child { border-bottom: none; }
.listing .date { color: var(--fg-dim); font-size: 0.875rem; }
.listing a { text-decoration: none; }
.listing a:hover, .listing a:focus-visible { text-decoration: none; }

/* talks extra */
.talk-meta { color: var(--fg-dim); font-size: 0.875rem; grid-column: 2; }
.talk-links { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.talk-links a {
  border: 1px solid var(--rule);
  padding: 0 0.4em;
  font-size: 0.875rem;
  text-decoration: none;
  min-height: 28px;
  display: inline-flex;
  align-items: center;
}
.listing-talk {
  display: grid;
  grid-template-columns: 8ch 1fr;
  gap: 0.5ch;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--rule);
  align-items: start;
}
.listing-talk:last-child { border-bottom: none; }
.listing-talk .date { color: var(--fg-dim); font-size: 0.875rem; padding-top: 0.15em; }

/* blog post */
.post-header { margin-bottom: 2rem; }
.post-header h1 { font-size: clamp(1.25rem, 3vw, 1.75rem); margin: 0 0 0.25rem; }
.post-meta { color: var(--fg-dim); font-size: 0.875rem; }
.post-content { max-width: 70ch; }
.post-content p { margin: 0 0 1rem; }
.post-content h2, .post-content h3 { margin: 1.5rem 0 0.5rem; }
.post-content ul, .post-content ol { padding-left: 2ch; margin: 0 0 1rem; }
.post-content blockquote {
  border-left: 3px solid var(--rule);
  margin: 0 0 1rem 0;
  padding-left: 1.5ch;
  color: var(--fg-dim);
}
.post-content pre {
  background: var(--bg-soft);
  padding: 1rem;
  overflow-x: auto;
  margin: 0 0 1rem;
}
.post-content code {
  background: var(--bg-soft);
  padding: 0.1em 0.3em;
  font-size: 0.9em;
}
.post-content pre code { background: none; padding: 0; font-size: inherit; }
/* syntax highlight — Giallo class output */
/* always dark background so Monokai token colors stay readable in light mode */
.post-content pre.giallo {
  background: #272822;
  border-left-color: #3E3D32;
}
.z-storage.z-type, .z-keyword { font-weight: 600; }
a.tag { color: var(--fg-dim); text-decoration: none; margin-right: 0.5em; }
a.tag:hover { color: var(--fg); }
.tag-list { list-style: none; padding: 0; }
.tag-list li { margin: 0.4rem 0; }
.post-list { list-style: none; padding: 0; }
.post-list li { margin: 0.5rem 0; }
.post-nav {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  font-size: 0.875rem;
}

/* footer */
footer {
  border-top: 1px solid var(--rule);
  padding: 1.5rem 0;
  color: var(--fg-dim);
  font-size: 0.875rem;
}
.footer-links { margin-bottom: 0.5rem; }
.footer-links a { color: var(--fg-dim); }

/* theme toggle button */
#theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--fg-dim);
  font: inherit;
  font-size: 0.875rem;
  padding: 0 0.25em;
  margin-left: auto;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
#theme-toggle:hover, #theme-toggle:focus-visible {
  background: var(--inv-bg);
  color: var(--inv-fg);
  outline: none;
}
#theme-toggle:focus-visible { outline: 2px solid var(--fg); }

/* external nav links — dimmer, no bracket box */
nav a.nav-ext {
  font-size: 0.8rem;
  opacity: 0.55;
  padding: 0 0.1em;
}
nav a.nav-ext:hover, nav a.nav-ext:focus-visible {
  opacity: 1;
}

/* utils */
.fg-dim { color: var(--fg-dim); }
hr { border: none; border-top: 1px solid var(--rule); margin: 1.5rem 0; }

/* page heading fallback */
h1 { font-size: clamp(1.25rem, 3vw, 1.75rem); margin: 0 0 1rem; }

/* ── terminal input ──────────────────────────────── */
#terminal-input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--fg);
  font: inherit;
  padding: 0;
  caret-color: var(--fg);
  flex: 1;
  min-width: 4ch;
}
#terminal-input::placeholder {
  color: var(--fg);
  opacity: 1;
}
#terminal-input:focus::placeholder {
  color: var(--fg-dim);
}

/* ── terminal output ─────────────────────────────── */
#terminal-output {
  font-size: 0.875rem;
  margin: 0 0 1.5rem;
  border-left: 2px solid var(--rule);
  padding-left: 1ch;
}
#terminal-output:empty { display: none; }

.terminal-line {
  margin: 0;
  padding: 0.1rem 0;
  white-space: pre-wrap;
  word-break: break-all;
  font: inherit;
}
.terminal-line.cmd-echo { color: var(--fg-dim); margin-top: 0.4rem; }
.terminal-line.error    { opacity: 0.6; }

.youtube iframe { width: 100%; aspect-ratio: 16/9; border: 0; }