/* ============================================
   randomdatathoughts — design tokens
   ============================================ */
:root {
  /* color */
  --paper:        #FAF8F4;
  --paper-dim:     #F2EFE8;
  --ink:          #1C1B19;
  --ink-soft:     #5B5650;
  --rule:         #E3DFD6;
  --accent:       #3D5A6C;   /* slate blue — links, signature mark */
  --accent-soft:  #DCE6EA;
  --tag:          #C97D3E;   /* amber — category tags only */
  --tag-soft:     #F3E3D2;

  /* type */
  --font-display: "Fraunces", Georgia, serif;
  --font-body:    "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:    "JetBrains Mono", "SF Mono", Consolas, monospace;

  /* scale */
  --step--1: clamp(0.8rem, 0.78rem + 0.1vw, 0.875rem);
  --step-0:  clamp(1rem, 0.97rem + 0.15vw, 1.0625rem);
  --step-1:  clamp(1.2rem, 1.1rem + 0.4vw, 1.375rem);
  --step-2:  clamp(1.6rem, 1.4rem + 0.9vw, 2rem);
  --step-3:  clamp(2.2rem, 1.8rem + 1.8vw, 3.2rem);
  --step-4:  clamp(2.8rem, 2.1rem + 3vw, 4.6rem);

  --max-w: 760px;
  --max-w-wide: 1080px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
a:hover { text-decoration-color: var(--tag); }

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* ============================================
   layout shells
   ============================================ */
.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.wrap-wide {
  max-width: var(--max-w-wide);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ============================================
   masthead / nav
   ============================================ */
.masthead {
  border-bottom: 1px solid var(--rule);
  padding: 1.4rem 0;
}
.masthead-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.wordmark {
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
}
.wordmark:hover { text-decoration: none; }
.wordmark .dot { color: var(--tag); }

.nav-links {
  display: flex;
  gap: 1.5rem;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.02em;
}
.nav-links a {
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--tag);
}

/* ============================================
   hero (home)
   ============================================ */
.hero {
  padding: 4.5rem 0 3rem;
}
.hero h1 {
  font-size: var(--step-4);
  max-width: 14ch;
  letter-spacing: -0.01em;
}
.hero .lede {
  max-width: 46ch;
  font-size: var(--step-1);
  color: var(--ink-soft);
  margin-top: 1rem;
}
.hero .cadence {
  margin-top: 1.75rem;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--ink-soft);
}

/* signature mark: a small hand-drawn-feeling sparkline tick.
   Each instance can carry a slightly different path via data attr
   for the "random" half of the brand, "data" half via its shape. */
.mark {
  width: 28px;
  height: 16px;
  flex-shrink: 0;
}
.mark path {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ============================================
   entry list (homepage preview + archive)
   ============================================ */
.entry-list {
  border-top: 1px solid var(--rule);
}
.entry {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1.5rem;
  padding: 1.9rem 0;
  border-bottom: 1px solid var(--rule);
  text-decoration: none;
  color: inherit;
}
.entry:hover .entry-title { color: var(--accent); }
.entry-meta {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--ink-soft);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: 0.2rem;
}
.entry-title {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 600;
  margin: 0 0 0.4rem;
  transition: color 0.15s ease;
}
.entry-dek {
  color: var(--ink-soft);
  font-size: var(--step-0);
  max-width: 56ch;
}
.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--tag);
  background: var(--tag-soft);
  padding: 0.18rem 0.5rem;
  border-radius: 3px;
  width: fit-content;
}
.tag.type-quick {
  color: var(--accent);
  background: var(--accent-soft);
}

@media (max-width: 600px) {
  .entry { grid-template-columns: 1fr; gap: 0.5rem; }
  .entry-meta { flex-direction: row; align-items: center; }
}

/* ============================================
   section labels
   ============================================ */
.section-label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-top: 3rem;
  margin-bottom: 0.5rem;
}
.section-label h2 {
  font-size: var(--step-1);
}
.section-label a {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  text-decoration: none;
}

/* ============================================
   post page
   ============================================ */
.post-header {
  padding: 3.5rem 0 2rem;
  border-bottom: 1px solid var(--rule);
}
.post-header .eyebrow-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.post-header h1 {
  font-size: var(--step-3);
  max-width: 20ch;
}
.post-dek {
  font-size: var(--step-1);
  color: var(--ink-soft);
  max-width: 50ch;
  margin-top: 0.75rem;
}
.post-byline {
  margin-top: 1.5rem;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--ink-soft);
}
.post-byline a { color: var(--ink-soft); text-decoration-color: var(--rule); }

.post-body {
  padding: 2.5rem 0 4rem;
  font-size: var(--step-0);
}
.post-body > * + * { margin-top: 1.3em; }
.post-body h2 {
  font-size: var(--step-2);
  margin-top: 2.2em;
}
.post-body h3 {
  font-size: var(--step-1);
  margin-top: 1.8em;
}
.post-body p { max-width: 68ch; }
.post-body ul, .post-body ol {
  max-width: 68ch;
  padding-left: 1.3em;
}
.post-body li + li { margin-top: 0.4em; }
.post-body blockquote {
  border-left: 2px solid var(--tag);
  margin: 0;
  padding-left: 1.2rem;
  font-style: italic;
  color: var(--ink-soft);
  max-width: 60ch;
}
.post-body code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--paper-dim);
  padding: 0.1em 0.4em;
  border-radius: 3px;
}
.post-body pre {
  background: var(--ink);
  color: var(--paper);
  padding: 1.2rem 1.4rem;
  border-radius: 6px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.85em;
  line-height: 1.55;
}
.post-body pre code { background: none; padding: 0; color: inherit; }

/* embedded viz / video frames */
.embed-frame {
  margin: 2.2rem 0;
}
.embed-frame .embed-label {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--ink-soft);
  margin-bottom: 0.6rem;
  display: block;
}
.embed-box {
  position: relative;
  width: 100%;
  border: 1px solid var(--rule);
  border-radius: 8px;
  overflow: hidden;
  background: var(--paper-dim);
}
.embed-box.ratio-16-9 { aspect-ratio: 16 / 9; }
.embed-box.ratio-4-3  { aspect-ratio: 4 / 3; }
.embed-box iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* pull quote / takeaway box */
.takeaway {
  border: 1px solid var(--rule);
  background: var(--paper-dim);
  border-radius: 8px;
  padding: 1.4rem 1.6rem;
  max-width: 64ch;
}
.takeaway .eyebrow { margin-bottom: 0.5rem; }

/* footer nav between posts */
.post-footer-nav {
  border-top: 1px solid var(--rule);
  padding: 2.5rem 0;
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.post-footer-nav a {
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: var(--step--1);
}
.post-footer-nav .dir { color: var(--ink-soft); display: block; margin-bottom: 0.3rem; }
.post-footer-nav .ttl { font-family: var(--font-display); font-size: var(--step-0); color: var(--ink); }

/* ============================================
   filters (archive page)
   ============================================ */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  padding: 2rem 0 1rem;
}
.filter-btn {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  background: none;
  border: 1px solid var(--rule);
  border-radius: 20px;
  padding: 0.35rem 0.9rem;
  cursor: pointer;
  color: var(--ink-soft);
}
.filter-btn:hover { border-color: var(--accent); color: var(--ink); }
.filter-btn[aria-pressed="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

/* ============================================
   about page
   ============================================ */
.about-hero {
  padding: 3.5rem 0 2rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
.about-hero h1 { font-size: var(--step-3); }
.about-body p { max-width: 64ch; }
.linkedin-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  border: 1px solid var(--ink);
  border-radius: 20px;
  padding: 0.5rem 1.1rem;
  text-decoration: none;
  color: var(--ink);
  margin-top: 1rem;
}
.linkedin-pill:hover { background: var(--ink); color: var(--paper); }

.now-box {
  border-top: 1px solid var(--rule);
  margin-top: 2.5rem;
  padding-top: 2rem;
}
.now-box h2 { font-size: var(--step-1); }
.now-box ul { padding-left: 1.2em; }

/* ============================================
   footer
   ============================================ */
footer.site-footer {
  border-top: 1px solid var(--rule);
  margin-top: 2rem;
  padding: 2.5rem 0 3.5rem;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--ink-soft);
}
footer.site-footer a { color: var(--ink-soft); }
.footer-row {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}