/* ────────────────────────────────────────────────────────────────
   SIFTER RESEARCH — "THE RESEARCH FILE"

   Design philosophy: The Economist × Bloomberg Terminal × Monocle
   Light editorial background. Typography-first.
   Dense and intellectual — every element earns its place.
   Gold is RARE. The work is the decoration.

   Palette: Warm white (#F2EBE0) · Ink black (#0C0C0C) · Gold (#9B7A1F)
   Type: Cormorant Garamond (display serif) · Geist Mono (data/UI)
──────────────────────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --paper:       #F2EBE0;
  --paper-off:   #F2EDE3;
  --paper-deep:  #EAE3D6;
  --ink:         #0C0C0C;
  --ink-mid:     #2A2A2A;
  --ink-soft:    #5A5550;
  --ink-faint:   #9A9490;
  --ink-ghost:   #C4BDB5;
  --gold:        #9B7A1F;
  --gold-pale:   rgba(155, 122, 31, 0.12);
  --gold-line:   rgba(155, 122, 31, 0.30);
  --rule:        rgba(12, 12, 12, 0.10);
  --rule-mid:    rgba(12, 12, 12, 0.18);

  --serif: "Cormorant Garamond", Georgia, serif;
  --mono:  "Geist Mono", "IBM Plex Mono", "Courier New", monospace;

  --max: 1280px;
  --col: 760px;
}

html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  padding-top: 52px;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ── NOISE TEXTURE OVERLAY ── */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 150;
  opacity: 0.5;
}

/* ── KEYBOARD FOCUS — WCAG 2.1 AA ── */
a:focus-visible,
button:focus-visible,
[role="button"]:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 1px;
}

/* ────────────────── NAV ────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 200;
  background: var(--paper);
  border-bottom: 1px solid var(--rule-mid);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  padding: 0 48px;
  height: 52px;
  transition: box-shadow 200ms ease, transform 300ms ease;
}

.nav--hidden {
  transform: translateY(-100%);
}

.nav--scrolled {
  box-shadow: 0 1px 16px rgba(12,12,12,0.09);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-mark {
  width: 22px;
  height: 22px;
  object-fit: contain;
  filter: none;
}

.nav-wordmark {
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.nav-center {
  display: flex;
  justify-content: center;
  gap: 32px;
  list-style: none;
}

.nav-center a {
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding: 16px 0;
  border-bottom: 1.5px solid transparent;
  transition: color 150ms, border-color 150ms;
}

.nav-center a:hover { color: var(--ink); border-color: var(--gold); }

.lens-beta {
  font-size: 0.50rem;
  letter-spacing: 0.06em;
  color: var(--gold);
  vertical-align: super;
  font-style: normal;
  font-family: var(--mono);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.nav-pulse {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gold);
  animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* ── HAMBURGER ── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-right: -8px;
  position: relative;
  z-index: 201; /* paints above .nav-mobile-overlay (z-index:190) within nav's stacking context */
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 220ms ease, opacity 220ms ease;
}

.nav--open .nav-hamburger span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav--open .nav-hamburger span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav--open .nav-hamburger span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ── MOBILE NAV OVERLAY ── */
.nav-mobile-overlay {
  position: fixed;
  inset: 52px 0 0 0;
  background: var(--ink);
  z-index: 190;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 250ms ease;
}

.nav--open .nav-mobile-overlay {
  opacity: 1;
  pointer-events: all;
}

.nav-mobile-overlay a {
  font-family: var(--serif);
  font-size: 2.2rem;
  font-weight: 400;
  color: rgba(248,244,237,0.75);
  padding: 18px 0;
  border-bottom: 1px solid rgba(248,244,237,0.08);
  width: 280px;
  text-align: center;
  transition: color 150ms;
}

.nav-mobile-overlay a:first-child {
  border-top: 1px solid rgba(248,244,237,0.08);
}

.nav-mobile-overlay a:hover { color: var(--gold); }

.nav-mobile-status {
  margin-top: 40px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(248,244,237,0.35);
}

.nav-mobile-status .nav-pulse {
  background: var(--gold);
}

/* ────────────────── HERO ────────────────── */
.hero {
  min-height: calc(100vh - 52px);
  display: grid;
  grid-template-columns: 1fr 420px;
  border-bottom: 1px solid var(--rule-mid);
}

/* LEFT COLUMN */
.hero-left {
  padding: 64px 56px 56px;
  border-right: 1px solid var(--rule-mid);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.hero-rubric {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 48px;
}

.rubric-tag {
  font-size: 0.80rem;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid var(--gold-line);
  padding: 4px 10px;
}

.rubric-line {
  font-size: 0.80rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-ghost);
}

.hero-headline {
  font-family: var(--serif);
  font-size: clamp(3.8rem, 6.5vw, 6.4rem);
  font-weight: 400;
  line-height: 0.93;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 40px;
  max-width: 12ch;
}

.hero-headline em {
  font-style: italic;
  color: var(--gold);
}

/* The thesis annotation — marginal note style */
.hero-annotation {
  display: flex;
  gap: 20px;
  margin-bottom: 40px;
  max-width: 520px;
}

.annotation-rule {
  width: 2px;
  flex-shrink: 0;
  background: var(--gold);
  opacity: 0.4;
  align-self: stretch;
}

.annotation-text {
  font-family: var(--serif);
  font-size: 1.22rem;
  font-style: italic;
  line-height: 1.65;
  color: var(--ink-mid);
  text-align: justify;
  hyphens: auto;
}

.hero-bottom {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 18px;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: all 150ms;
  cursor: pointer;
  border: none;
  border-radius: 2px;
}

.btn-dark {
  background: var(--ink);
  color: var(--paper);
}

.btn-dark:hover {
  background: var(--ink-mid);
}

.btn-ghost {
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid var(--rule-mid);
}

.btn-ghost:hover {
  border-color: var(--ink-soft);
  color: var(--ink);
}

.btn svg { width: 12px; height: 12px; flex-shrink: 0; }

/* Data row at hero bottom */
.hero-data-row {
  display: flex;
  gap: 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.hero-datum {
  padding: 16px 24px 16px 0;
  border-right: 1px solid var(--rule);
  flex: 1;
}

.hero-datum:first-child { padding-left: 0; }
.hero-datum:last-child { border-right: none; }

.datum-val {
  font-family: var(--serif);
  font-size: 2.2rem;
  font-weight: 400;
  line-height: 1;
  color: var(--ink);
  margin-bottom: 4px;
}

.datum-key {
  font-size: 0.60rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  line-height: 1.4;
}

/* RIGHT COLUMN — Research File card */
.hero-right {
  background: var(--paper-off);
  border-left: 1px solid var(--rule-mid);
  display: flex;
  flex-direction: column;
}

.file-header {
  padding: 28px 32px 20px;
  border-bottom: 1px solid var(--rule-mid);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.file-label {
  font-size: 0.62rem;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.file-status {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.60rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
}

.file-status::before {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--gold);
}

/* Each research entry in the file */
.file-entry {
  padding: 24px 32px;
  border-bottom: 1px solid var(--rule);
  position: relative;
  transition: background 150ms;
}

.file-entry:hover {
  background: var(--paper-deep);
}

/* Number label, like a filing number */
.entry-number {
  position: absolute;
  top: 24px;
  right: 32px;
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-ghost);
}

.entry-exchange {
  font-size: 0.60rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 6px;
}

.entry-ticker {
  font-size: 0.72rem;
  letter-spacing: 0.10em;
  color: var(--gold);
  margin-bottom: 2px;
}

.entry-name {
  font-family: var(--serif);
  font-size: 1.7rem;
  font-weight: 400;
  line-height: 1.05;
  margin-bottom: 10px;
}

.entry-thesis {
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.95rem;
  line-height: 1.6;
  text-align: justify;
  hyphens: auto;
  color: var(--ink-soft);
  margin-bottom: 14px;
  padding-left: 12px;
  border-left: 2px solid var(--gold-line);
}

.entry-metrics {
  display: flex;
  gap: 20px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.em-key {
  font-size: 0.55rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-ghost);
  display: block;
  margin-bottom: 2px;
}

.em-val {
  font-size: 0.80rem;
  font-weight: 500;
  color: var(--ink-mid);
}

.em-val.highlight { color: var(--gold); }

.entry-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.81rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  transition: color 150ms, gap 150ms;
}

.entry-link:hover { color: var(--gold); gap: 12px; }

.entry-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.entry-memo {
  font-family: var(--mono);
  font-size: 0.60rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-ghost);
  text-decoration: none;
  transition: color 150ms;
}

.entry-memo:hover { color: var(--gold); }

/* Entry detail: always visible on desktop */
.entry-toggle { display: none; }
.entry-detail  { display: block; }

/* Pipeline section inside file card */
.file-pipeline {
  padding: 20px 32px;
  flex: 1;
}

.pipeline-label {
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-ghost);
  margin-bottom: 12px;
  display: block;
}

.pipeline-item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  padding: 8px 0;
  border-top: 1px solid var(--rule);
}

.pipeline-item:first-of-type { border-top: none; }

.pi-dot {
  font-size: 0.5rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.pi-dot.active { color: var(--gold); }
.pi-dot.watch  { color: var(--ink-soft); }
.pi-dot.dead   { color: var(--ink-ghost); }

/* ────────────────── TICKER STRIP ────────────────── */
.strip {
  height: 44px;
  background: var(--ink);
  color: var(--paper-off);
  overflow: hidden;
  border-bottom: 1px solid var(--rule-mid);
  display: flex;
  align-items: center;
  cursor: default;
}

.strip-inner {
  white-space: nowrap;
  animation: ticker 55s linear infinite;
  display: flex;
  gap: 0;
  font-size: 0.74rem;
  letter-spacing: 0.10em;
}

.strip:hover .strip-inner {
  animation-play-state: paused;
}

.strip-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 0 40px;
  border-right: 1px solid rgba(248,244,237,0.08);
}

.strip-ticker { color: var(--gold); }
.strip-val { color: rgba(248,244,237,0.75); }

@keyframes ticker {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ────────────────── SECTION BASE ────────────────── */
.section {
  border-bottom: 1px solid var(--rule-mid);
}

.section-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 72px 48px;
}

/* Section heading with ruled line */
.section-kicker {
  font-size: 0.60rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 8px;
}

.section-title {
  font-family: var(--serif);
  font-size: clamp(2.4rem, 4vw, 3.8rem);
  font-weight: 400;
  line-height: 1.0;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
  max-width: 20ch;
}

.section-deck {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.1rem;
  line-height: 1.75;
  text-align: justify;
  hyphens: auto;
  color: var(--ink-soft);
  max-width: 58ch;
  margin-top: 16px;
}

/* Rule divider between heading and body */
.section-rule {
  width: 100%;
  height: 1px;
  background: var(--rule-mid);
  margin: 36px 0;
}

/* ────────────────── ABOUT / IDENTITY ────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}

.about-text p {
  font-family: var(--serif);
  font-size: 1.10rem;
  line-height: 1.80;
  color: var(--ink-mid);
  margin-bottom: 20px;
  text-align: justify;
  hyphens: auto;
}

.about-text p:last-child { margin-bottom: 0; }

.about-read-more {
  display: inline-block;
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-line);
  padding-bottom: 2px;
  transition: color 200ms, border-color 200ms;
}
.about-read-more:hover {
  color: var(--ink);
  border-color: var(--ink);
}

/* Stat grid in about column */
.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--rule-mid);
  align-self: start;
}

.stat-item {
  padding: 24px 20px;
  border-right: 1px solid var(--rule-mid);
  border-bottom: 1px solid var(--rule-mid);
}

.stat-item:nth-child(2n) { border-right: none; }
.stat-item:nth-child(3),
.stat-item:nth-child(4) { border-bottom: none; }

.stat-val {
  font-family: var(--serif);
  font-size: 2.6rem;
  font-weight: 400;
  line-height: 1;
  color: var(--ink);
  margin-bottom: 6px;
}

.stat-val span {
  font-size: 1.6rem;
  color: var(--gold);
}

.stat-key {
  font-size: 0.60rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-faint);
  line-height: 1.5;
}

/* ────────────────── METHOD (process) ────────────────── */
.method-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--rule-mid);
}

.method-step {
  padding: 32px 28px;
  border-right: 1px solid var(--rule-mid);
  position: relative;
}

.method-step:last-child { border-right: none; }

.step-num {
  font-size: 0.60rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.step-num::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--gold-line);
}

.step-title {
  font-family: var(--serif);
  font-size: 1.7rem;
  font-weight: 400;
  line-height: 1.0;
  margin-bottom: 14px;
  color: var(--ink);
}

.step-body {
  font-family: var(--serif);
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--ink-soft);
  text-align: justify;
  hyphens: auto;
}

.step-checklist-preview {
  list-style: none;
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.step-checklist-preview li {
  font-family: var(--mono);
  font-size: 0.60rem;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
  padding-left: 14px;
  position: relative;
}

.step-checklist-preview li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--gold);
}

/* ────────────────── RESEARCH CARDS ────────────────── */
.research-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--rule-mid);
}

.rcard {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  padding: 36px 40px;
  border-bottom: 1px solid var(--rule-mid);
  position: relative;
  transition: background 180ms;
}

.rcard:last-child { border-bottom: none; }

.rcard:hover { background: var(--paper-off); }

/* Gold left bar on hover */
.rcard::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--gold);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 200ms ease;
}

.rcard:hover::before { transform: scaleY(1); }

.rcard-ticker {
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 2px;
}

.rcard-exchange {
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  color: var(--ink-ghost);
  margin-bottom: 8px;
}

.rcard-name {
  font-family: var(--serif);
  font-size: 2.6rem;
  font-weight: 400;
  line-height: 1.0;
  margin-bottom: 12px;
  color: var(--ink);
}

.rcard-thesis {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.08rem;
  line-height: 1.65;
  text-align: justify;
  hyphens: auto;
  color: var(--ink-soft);
  max-width: 64ch;
  margin-bottom: 18px;
}

.rcard-meta {
  font-size: 0.60rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-ghost);
}

.rcard-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: space-between;
  min-width: 200px;
}

.rcard-archive-num {
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-ghost);
  text-align: right;
}

.rcard-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--rule-mid);
  border: 1px solid var(--rule-mid);
  width: 100%;
}

.rcm {
  background: var(--paper);
  padding: 10px 12px;
}

.rcm-k {
  font-size: 0.55rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-ghost);
  display: block;
  margin-bottom: 3px;
}

.rcm-v {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--ink-mid);
}

.rcm-v.gold { color: var(--gold); }

.rcard-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--serif);
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink-faint);
  transition: color 150ms, gap 150ms;
}

.rcard-link:hover { color: var(--gold); gap: 12px; }

.rcard-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}

.rcard-memo {
  font-family: var(--mono);
  font-size: 0.60rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-ghost);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 1px;
  transition: color 150ms, border-color 150ms;
}

.rcard-memo:hover {
  color: var(--ink-soft);
  border-color: var(--ink-soft);
}

/* ────────────────── DOCTRINE SPLIT ────────────────── */
.doctrine-wrap {
  display: grid;
  grid-template-columns: 1fr 80px 1fr;
  gap: 0;
}

.doctrine-col {
  padding: 0 40px;
}

.doctrine-col:first-child { padding-left: 0; }
.doctrine-col:last-child  { padding-right: 0; }

.doctrine-divider {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 4px;
}

.doctrine-divider::before {
  content: "vs";
  font-size: 0.60rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-ghost);
  background: var(--paper);
  padding: 4px 8px;
  border: 1px solid var(--rule-mid);
  z-index: 1;
}

.doctrine-divider-line {
  flex: 1;
  width: 1px;
  background: var(--rule-mid);
  margin-top: 0;
}

.doctrine-heading {
  font-family: var(--serif);
  font-size: 1.8rem;
  font-weight: 400;
  line-height: 1.05;
  margin-bottom: 20px;
  margin-top: 8px;
}

.doctrine-list {
  list-style: none;
  display: flex;
  flex-direction: column;
}

.doctrine-list li {
  padding: 12px 0;
  border-top: 1px solid var(--rule);
  font-family: var(--serif);
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--ink-soft);
  text-align: justify;
  hyphens: auto;
}


/* ────────────────── FOUNDER ────────────────── */
.founder-wrap {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 56px;
  align-items: start;
}

.founder-img {
  width: 100%;
  aspect-ratio: 1 / 1.25;
  object-fit: cover;
}

.founder-eyebrow {
  font-size: 0.60rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-ghost);
  margin-bottom: 8px;
}

.founder-name {
  font-family: var(--serif);
  font-size: 3rem;
  font-weight: 400;
  line-height: 1.0;
  margin-bottom: 4px;
}

.founder-role {
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 10px;
}

.founder-credentials {
  font-size: 0.62rem;
  letter-spacing: 0.10em;
  color: var(--ink-soft);
  line-height: 1.6;
  margin-bottom: 28px;
  max-width: 52ch;
  text-align: justify;
  hyphens: auto;
}

.founder-bio {
  font-family: var(--serif);
  font-size: 1.1rem;
  line-height: 1.80;
  color: var(--ink-mid);
  text-align: justify;
  hyphens: auto;
  max-width: 58ch;
  margin-bottom: 28px;
}

.founder-quote-block {
  padding: 24px 28px;
  border-left: 3px solid var(--gold);
  background: var(--paper-off);
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.4rem;
  font-weight: 400;
  line-height: 1.4;
  color: var(--ink);
  max-width: 52ch;
}

/* ────────────────── SUBSCRIBE ────────────────── */
.sub-grid {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 0;
  border: 1px solid var(--rule-mid);
}

.sub-main {
  padding: 44px 48px;
  border-right: 1px solid var(--rule-mid);
}

.sub-title {
  font-family: var(--serif);
  font-size: 2.4rem;
  font-weight: 400;
  line-height: 1.05;
  margin-top: 10px;
  margin-bottom: 16px;
}

.sub-body {
  font-family: var(--serif);
  font-size: 1.05rem;
  line-height: 1.80;
  color: var(--ink-soft);
  text-align: justify;
  hyphens: auto;
  max-width: 56ch;
  margin-bottom: 28px;
}

.sub-aside {
  padding: 44px 36px;
  background: var(--paper-off);
}

.sub-aside-title {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 400;
  line-height: 1.15;
  margin-top: 10px;
  margin-bottom: 14px;
}

.sub-aside-body {
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.92rem;
  line-height: 1.75;
  text-align: justify;
  hyphens: auto;
  color: var(--ink-soft);
}

/* ────────────────── FOOTER ────────────────── */
.footer {
  background: var(--ink);
  color: var(--paper-off);
  padding: 32px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.01em;
}

.footer-copy {
  font-size: 0.58rem;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: rgba(248,244,237,0.35);
  max-width: 44ch;
  line-height: 1.6;
  text-align: justify;
  hyphens: auto;  
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  font-size: 0.60rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(248,244,237,0.45);
  transition: color 150ms;
}

.footer-links a:hover { color: var(--paper); }

/* ────────────────── SCROLL REVEAL ────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.in { opacity: 1; transform: none; }

/* ────────────────── RESPONSIVE ────────────────── */
@media (max-width: 1100px) {
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-left { border-right: none; border-bottom: 1px solid var(--rule-mid); }
  .hero-right { border-left: none; }
  .about-grid { grid-template-columns: 1fr; }
  .method-grid { grid-template-columns: 1fr 1fr; }
  .method-step:nth-child(2) { border-right: none; }
  .method-step:nth-child(3) { border-right: 1px solid var(--rule-mid); }
  .rcard { grid-template-columns: 1fr; }
  .rcard-right { align-items: flex-start; flex-direction: row; flex-wrap: wrap; gap: 16px; }
  .doctrine-wrap { grid-template-columns: 1fr; }
  .doctrine-divider { display: none; }
  .doctrine-col { padding: 28px 0; border-top: 1px solid var(--rule-mid); }
  .doctrine-col:first-child { border-top: none; padding-top: 0; }
  .sub-grid { grid-template-columns: 1fr; }
  .sub-main { border-right: none; border-bottom: 1px solid var(--rule-mid); }

  /* Nav: collapse to brand + hamburger */
  .nav { grid-template-columns: 1fr auto; }
  .nav-center { display: none; }
  .nav-right { display: none; }
  .nav-hamburger { display: flex; }

}

@media (max-width: 768px) {
  .pulse-grid { display: none; }
}

@media (max-width: 740px) {
  .nav { padding: 0 20px; }
  .hero-left { padding: 44px 20px 40px; }
  .hero-right { padding: 20px 20px 32px; }
  .file-header, .file-entry, .file-pipeline { padding-left: 20px; padding-right: 20px; }
  .section-inner { padding: 52px 20px; }
  .method-grid { grid-template-columns: 1fr; }
  .method-step { border-right: none; border-bottom: 1px solid var(--rule-mid); }
  .method-step:last-child { border-bottom: none; }
  .founder-wrap { grid-template-columns: 1fr; }
  .founder-img { max-width: 180px; }
  .footer { flex-direction: column; gap: 20px; align-items: flex-start; padding: 28px 20px; }
  .footer-brand { font-size: 1.4rem; }
  .rcard-name { font-size: 2rem; }
  .rcard { padding: 24px 20px; }
  .method-step { padding: 24px 20px; }
  .sub-main { padding: 32px 20px; }
  .sub-aside { padding: 28px 20px; }
  .founder-quote-block { padding: 20px 16px; }
  .founder-name { font-size: 2rem; }
  .sub-title { font-size: 1.8rem; }
  .step-title { font-size: 1.4rem; }
  .doctrine-heading { font-size: 1.4rem; }
  .stat-grid { grid-template-columns: 1fr; }
  .strip-item { padding: 0 16px; }
  .footer-copy { max-width: 100%; }

  /* Mobile hero: collapse file entry details behind a toggle */
  .entry-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--mono);
    font-size: 0.65rem;
    letter-spacing: 0.10em;
    text-transform: uppercase;
    color: var(--gold);
    background: none;
    border: none;
    padding: 8px 0 4px;
    cursor: pointer;
  }
  .entry-detail { display: none; }
  .entry-detail.open { display: block; }
  .rcard-right { min-width: 0; width: 100%; }

  /* Hero data row: 2×2 grid */
  .hero-data-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
  .hero-datum {
    padding: 14px 16px;
    border-right: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
  }
  .hero-datum:nth-child(2n)  { border-right: none; }
  .hero-datum:nth-child(3),
  .hero-datum:nth-child(4)   { border-bottom: none; }
  .hero-datum:first-child    { padding-left: 16px; }
  .hero-datum:last-child     { border-right: none; }
}

@media (max-width: 480px) {
  .nav { padding: 0 12px; }
  .hero-left { padding: 32px 12px 28px; }
  .section-inner { padding: 40px 12px; }
}

/* ── Disabled rcard action (WIP tools) ── */
.rcard-link--disabled {
  opacity: 0.35;
  cursor: default;
  pointer-events: none;
}

/* ────────────────── REDUCED MOTION ────────────────── */
@media (prefers-reduced-motion: reduce) {
  /* Scroll reveals appear immediately — no slide-up */
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  /* Ticker stops scrolling */
  .strip-inner { animation: none; }
  /* Pulse-grid scan line and ping rings stop */
  .pg-scan-line { animation: none; }
  .pg-dot::after { animation: none; }
}