/* ------------------------------------------------------------------
   THE DECENTRALIZED MAN
   Instrument-panel aesthetic: drafting paper, calibrated ticks,
   one red needle. Display: Archivo (wide). Prose: Source Serif 4.
   Data: IBM Plex Mono.
------------------------------------------------------------------- */

:root {
  --paper: #f3f6f6;
  --panel: #fbfdfd;
  --grid: rgba(21, 48, 58, 0.055);
  --ink: #0f1d24;
  --ink-soft: #53656e;
  --hairline: #c7d3d8;
  --tick: #93a7af;
  --needle: #d8352a;

  --font-display: "Archivo", system-ui, sans-serif;
  --font-body: "Source Serif 4", Georgia, serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --wrap: 960px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

body {
  margin: 0;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 28px 28px;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
}

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

.dim { color: var(--ink-soft); }
.accent { color: var(--needle); }

a { color: inherit; text-decoration-color: var(--tick); text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--needle); color: var(--needle); }

.skip {
  position: absolute;
  left: -9999px;
  background: var(--ink);
  color: var(--paper);
  padding: 0.5rem 1rem;
  z-index: 10;
}
.skip:focus { left: 0.5rem; top: 0.5rem; }

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

/* ---------------- Masthead ---------------- */

.masthead { padding-top: 2rem; }

.masthead-inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  padding-bottom: 1.1rem;
  flex-wrap: wrap;
}

.wordmark {
  font-family: var(--font-display);
  font-variation-settings: "wdth" 125;
  font-weight: 900;
  font-size: clamp(1.5rem, 3.2vw, 2.1rem);
  line-height: 0.95;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  text-decoration: none;
}
.wordmark:hover { color: var(--ink); text-decoration: none; }

.nav {
  display: flex;
  gap: 1.4rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding-bottom: 0.25rem;
}
.nav a { text-decoration: none; border-bottom: 2px solid transparent; padding-bottom: 2px; }
.nav a:hover { color: var(--needle); }
.nav a[aria-current="page"] { border-bottom-color: var(--needle); }

/* The signature: a calibrated ruler with one red needle at 0.618. */
.ruler {
  position: relative;
  height: 16px;
  border-bottom: 2px solid var(--ink);
  background-image:
    repeating-linear-gradient(90deg, var(--tick) 0 1px, transparent 1px 10px),
    repeating-linear-gradient(90deg, var(--ink) 0 1px, transparent 1px 70px);
  background-size: 100% 7px, 100% 15px;
  background-repeat: repeat-x;
  background-position: left bottom, left bottom;
}
.ruler-flip {
  border-bottom: none;
  border-top: 2px solid var(--ink);
  background-position: left top, left top;
  transform: scaleY(-1);
}
.needle {
  position: absolute;
  left: 61.8%;
  bottom: 0;
  width: 3px;
  height: 16px;
  background: var(--needle);
}

/* ---------------- Hero ---------------- */

.hero { padding: 4.5rem 0 3.5rem; }

.thesis {
  font-family: var(--font-display);
  font-variation-settings: "wdth" 120;
  font-weight: 900;
  font-size: clamp(2.4rem, 6.5vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: -0.015em;
  text-transform: uppercase;
  margin: 0 0 1.1rem;
}

.hero-sub {
  max-width: 34em;
  font-size: 1.15rem;
  color: var(--ink-soft);
  margin: 0 0 2.6rem;
}

.readout {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin: 0;
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--hairline);
}
.readout > div {
  padding: 0.9rem 1rem 1rem 0;
  border-right: 1px solid var(--hairline);
  padding-left: 1rem;
}
.readout > div:first-child { padding-left: 0; }
.readout > div:last-child { border-right: none; }
.readout dt {
  text-transform: uppercase;
  font-size: 0.68rem;
  color: var(--ink-soft);
  margin-bottom: 0.3rem;
}
.readout dd {
  margin: 0;
  font-size: 1.7rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

/* ---------------- Log / ledger ---------------- */

.section-label {
  text-transform: uppercase;
  color: var(--ink-soft);
  font-weight: 500;
  margin: 0 0 0.4rem;
  font-size: 0.72rem;
}

.ledger {
  list-style: none;
  margin: 0 0 4rem;
  padding: 0;
  border-top: 2px solid var(--ink);
}

.ledger-row a {
  display: grid;
  grid-template-columns: 6.5rem 1fr 12rem;
  gap: 1.25rem;
  align-items: baseline;
  padding: 1.15rem 0.5rem 1.2rem;
  border-bottom: 1px solid var(--hairline);
  text-decoration: none;
  transition: background-color 120ms ease;
}
.ledger-row a:hover { background: var(--panel); color: var(--ink); }
.ledger-row a:hover .row-no { color: var(--needle); }
.ledger-row a:hover .row-title { text-decoration: underline; text-decoration-color: var(--needle); text-underline-offset: 3px; }

.row-no { color: var(--ink-soft); font-weight: 600; }

.row-main { display: block; }
.row-title {
  display: block;
  font-family: var(--font-display);
  font-variation-settings: "wdth" 110;
  font-weight: 700;
  font-size: 1.25rem;
  line-height: 1.25;
}
.row-desc {
  display: block;
  color: var(--ink-soft);
  font-size: 0.95rem;
  margin-top: 0.2rem;
}

.row-meta {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  color: var(--ink-soft);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* ---------------- Entry (post) ---------------- */

.entry { padding: 3.5rem 0 2rem; max-width: 720px; }

.entry-head { margin-bottom: 2.5rem; }

.kicker { text-transform: uppercase; color: var(--ink-soft); margin: 0 0 0.9rem; }
.kicker .entry-no { color: var(--needle); font-weight: 600; }
.kicker .sep { margin: 0 0.4rem; }

.entry-title {
  font-family: var(--font-display);
  font-variation-settings: "wdth" 116;
  font-weight: 900;
  font-size: clamp(2rem, 5vw, 3.1rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
  margin: 0 0 0.8rem;
}

.entry-desc {
  font-size: 1.2rem;
  color: var(--ink-soft);
  margin: 0 0 1.6rem;
  font-style: italic;
}

.readings {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 0;
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--hairline);
}
.readings > div {
  padding: 0.55rem 1.1rem 0.6rem 0;
  margin-right: 1.1rem;
  border-right: 1px solid var(--hairline);
}
.readings > div:last-child { border-right: none; margin-right: 0; }
.readings dt {
  display: inline;
  text-transform: uppercase;
  font-size: 0.68rem;
  color: var(--ink-soft);
}
.readings dt::after { content: " "; }
.readings dd {
  display: inline;
  margin: 0;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

/* ---------------- Prose ---------------- */

.prose { max-width: 66ch; }

.prose h2 {
  font-family: var(--font-display);
  font-variation-settings: "wdth" 112;
  font-weight: 800;
  font-size: 1.45rem;
  line-height: 1.2;
  margin: 2.4rem 0 0.8rem;
}
.prose h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  margin: 2rem 0 0.6rem;
}
.prose p { margin: 0 0 1.2rem; }
.prose li { margin-bottom: 0.5rem; }
.prose strong { font-weight: 700; }

.prose blockquote {
  margin: 1.6rem 0;
  padding: 0.2rem 0 0.2rem 1.2rem;
  border-left: 3px solid var(--needle);
  color: var(--ink-soft);
  font-style: italic;
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--panel);
  border: 1px solid var(--hairline);
  padding: 0.1em 0.35em;
  border-radius: 3px;
}
.prose pre {
  background: var(--ink);
  color: var(--paper);
  padding: 1rem 1.2rem;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.6;
}
.prose pre code { background: none; border: none; color: inherit; padding: 0; }

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  margin: 1.6rem 0;
}
.prose th {
  text-align: left;
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  border-bottom: 2px solid var(--ink);
  padding: 0.5rem 0.75rem 0.5rem 0;
}
.prose td {
  border-bottom: 1px solid var(--hairline);
  padding: 0.55rem 0.75rem 0.55rem 0;
  font-variant-numeric: tabular-nums;
}

.prose hr {
  border: none;
  border-top: 1px solid var(--hairline);
  margin: 2.5rem 0;
}

.entry-foot {
  margin-top: 3.5rem;
  padding-top: 1rem;
  border-top: 2px solid var(--ink);
  color: var(--ink-soft);
  text-transform: uppercase;
}

/* ---------------- Measurements panel grid ---------------- */

.panel-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
  border-top: 2px solid var(--ink);
  margin: 0 0 2.5rem;
}
.panel {
  background: var(--panel);
  padding: 1.1rem 1.2rem 1.2rem;
}
.panel dt {
  text-transform: uppercase;
  font-size: 0.68rem;
  color: var(--ink-soft);
  margin-bottom: 0.4rem;
}
.panel dd {
  margin: 0;
  font-size: 2rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

/* ---------------- Footer ---------------- */

.footer { margin-top: 3rem; }
.footer-inner { padding: 1.4rem 1.25rem 2.4rem; }
.footer-inner p { margin: 0 0 0.35rem; text-transform: uppercase; }

/* ---------------- Responsive ---------------- */

@media (max-width: 820px) {
  .readout { grid-template-columns: repeat(2, 1fr); }
  .readout > div { border-right: none; border-bottom: 1px solid var(--hairline); padding-left: 0; }
  .ledger-row a { grid-template-columns: 5rem 1fr; }
  .row-meta { grid-column: 2; flex-direction: row; gap: 0.9rem; text-align: left; }
  .panel-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 540px) {
  .masthead-inner { align-items: flex-start; flex-direction: column; gap: 0.9rem; }
  .nav { gap: 1rem; flex-wrap: wrap; }
  .ledger-row a { grid-template-columns: 1fr; gap: 0.35rem; }
  .row-no { font-size: 0.72rem; }
  .row-meta { grid-column: 1; }
  .panel-grid { grid-template-columns: 1fr; }
}