/* =========================================================================
   Dossier redesign — layout re-skin only.
   Same palette, same imagery, same copy. New structural language:
   a numbered diagnostic document with a left spine, dotted TOC, hairline
   ledgers, and margin annotations instead of a centered card layout.
   ========================================================================= */

:root {
  color-scheme: dark;
  --ink: #ebe6d7;
  --ink-soft: #c4bfb2;
  --ink-muted: #8f8a82;
  --field: #121722;
  --field-deep: #171b26;
  --field-soft: #202633;
  --graphite: #262b32;
  --stone: #736f67;
  --stone-soft: #a99f91;
  --signal: #C97B4A;
  --signal-dim: #6e4327;
  --line: rgba(198, 207, 204, 0.16);
  --line-soft: rgba(198, 207, 204, 0.09);
  --line-strong: rgba(201, 123, 74, 0.42);
  --shadow: rgba(7, 11, 18, 0.54);

  --doc-max: 1320px;
  --gutter: clamp(20px, 4vw, 56px);
  --rail: clamp(64px, 12vw, 168px);
  --colgap: clamp(28px, 5vw, 84px);
  --measure: 64ch;

  --sans:
    "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono:
    ui-monospace, "SF Mono", "SFMono-Regular", "Roboto Mono", Menlo,
    Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(110deg, rgba(24, 30, 43, 0.96), rgba(17, 22, 33, 0.98) 42%, rgba(32, 35, 41, 0.96)),
    var(--field);
  color: var(--ink);
  font-family: var(--sans);
  letter-spacing: 0;
  text-rendering: geometricPrecision;
  -webkit-font-smoothing: antialiased;
}

/* faint blueprint grid + atmospheric glow — carried over verbatim */
body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  background:
    linear-gradient(90deg, rgba(201, 123, 74, 0.014) 1px, transparent 1px),
    linear-gradient(180deg, rgba(231, 227, 216, 0.012) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(
    180deg,
    rgba(18, 23, 34, 0.55) 0%,
    rgba(18, 23, 34, 0.2) 42%,
    transparent 72%
  );
}

body::after {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background:
    radial-gradient(ellipse 120% 80% at 10% 20%, rgba(42, 48, 72, 0.22), transparent 55%),
    radial-gradient(ellipse 90% 70% at 88% 75%, rgba(30, 36, 52, 0.18), transparent 50%),
    linear-gradient(128deg, rgba(201, 123, 74, 0.022), transparent 32%),
    linear-gradient(22deg, transparent 48%, rgba(161, 153, 140, 0.035) 72%, transparent 92%);
}

img,
svg {
  display: block;
}

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

p,
h1,
h2,
h3 {
  margin: 0;
}

section[id] {
  scroll-margin-top: 104px;
}

/* fine-grain film noise — carried over */
.doc::after {
  position: fixed;
  inset: 0;
  z-index: 200;
  pointer-events: none;
  content: "";
  opacity: 0.03;
  mix-blend-mode: overlay;
  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)'/%3E%3C/svg%3E");
}

.doc {
  position: relative;
  overflow: clip;
}

/* ----- shared wrappers ----- */
.wrap {
  width: min(var(--doc-max), calc(100% - (var(--gutter) * 2)));
  margin-inline: auto;
}

/* Two-column document grid: numbered spine + reading column */
.leaf {
  display: grid;
  grid-template-columns: var(--rail) minmax(0, 1fr);
  column-gap: var(--colgap);
  position: relative;
}

/* the continuous spine rule between rail and body */
.leaf::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(var(--rail) + (var(--colgap) / 2));
  width: 1px;
  background: var(--line-soft);
}

/* =====================  MASTHEAD  ===================== */
.masthead {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 0;
  background: linear-gradient(180deg, rgba(16, 21, 31, 0.9), rgba(16, 21, 31, 0));
  border-bottom: 1px solid transparent;
  transition: background 0.35s ease, border-color 0.35s ease, padding 0.35s ease;
}

.masthead.is-scrolled {
  padding: 13px 0;
  background: rgba(15, 19, 28, 0.9);
  backdrop-filter: blur(14px) saturate(1.05);
  border-bottom-color: var(--line);
}

.masthead__wrap {
  width: min(var(--doc-max), calc(100% - (var(--gutter) * 2)));
  margin-inline: auto;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
}

.doc-brand {
  font-size: 0.94rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--ink);
}

.doc-nav {
  display: flex;
  gap: clamp(14px, 2vw, 30px);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.doc-nav a {
  position: relative;
  padding-bottom: 2px;
  transition: color 0.2s ease;
}

.doc-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--signal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.28s ease;
}

.doc-nav a:hover {
  color: var(--ink);
}

.doc-nav a:hover::after {
  transform: scaleX(1);
}

/* =====================  COVER  ===================== */
.cover {
  padding: clamp(56px, 9vw, 132px) 0 clamp(48px, 7vw, 96px);
}

.cover__grid {
  display: block;
}

.cover__eyebrow {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 26px;
}

.cover h1 {
  max-width: 15ch;
  font-size: clamp(2.6rem, 6vw, 5rem);
  font-weight: 500;
  line-height: 1.02;
  letter-spacing: -0.015em;
  color: var(--ink);
}

/* the framing statement block below the cover title */
.cover__statement {
  margin-top: clamp(40px, 6vw, 80px);
  display: grid;
  grid-template-columns: var(--rail) minmax(0, 1fr);
  column-gap: var(--colgap);
  padding-top: 30px;
  border-top: 1px solid var(--line);
}

.cover__statement-index {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
}

.cover__statement-body {
  max-width: var(--measure);
  display: grid;
  gap: 18px;
}

.cover__prelude {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.cover__anchor {
  font-size: clamp(1.5rem, 3vw, 2.15rem);
  font-weight: 500;
  line-height: 1.14;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.cover__prose {
  color: var(--ink-soft);
  font-size: 1.02rem;
  line-height: 1.7;
}

.cover__capline {
  color: var(--ink-soft);
  font-size: 1.02rem;
  line-height: 1.7;
  padding-left: 18px;
  border-left: 2px solid var(--signal-dim);
}

.cover__more {
  justify-self: start;
  margin-top: 6px;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.cover__more::after {
  content: "";
  width: 42px;
  height: 1px;
  background: var(--signal);
  transition: width 0.3s ease;
}

.cover__more:hover::after {
  width: 66px;
}

/* =====================  TABLE OF CONTENTS  ===================== */
.toc {
  padding: clamp(30px, 4vw, 46px) 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.toc__grid {
  display: grid;
  grid-template-columns: var(--rail) minmax(0, 1fr);
  column-gap: var(--colgap);
}

.toc__label {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.toc__list {
  display: grid;
  gap: 2px;
}

.toc__row {
  display: grid;
  grid-template-columns: 3.2rem 1fr auto;
  align-items: baseline;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line-soft);
  color: var(--ink-soft);
  transition: color 0.2s ease;
}

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

.toc__num {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--signal);
}

.toc__name {
  font-size: 1.16rem;
  font-weight: 450;
  color: var(--ink);
  letter-spacing: -0.005em;
}

.toc__go {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--ink-muted);
  transition: transform 0.24s ease, color 0.2s ease;
}

.toc__row:hover {
  color: var(--ink);
}

.toc__row:hover .toc__go {
  color: var(--signal);
  transform: translateX(6px);
}

/* =====================  SECTION SCAFFOLD  ===================== */
.chapter {
  padding: clamp(64px, 9vw, 132px) 0;
  border-bottom: 1px solid var(--line-soft);
}

.chapter__head {
  margin-bottom: clamp(34px, 4vw, 58px);
}

/* the big outlined index numeral that sits in the spine */
.rail-index {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--signal);
  position: sticky;
  top: 96px;
}

.rail-index__num {
  display: block;
  font-size: clamp(2.4rem, 4vw, 3.6rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.02em;
  color: transparent;
  -webkit-text-stroke: 1px var(--stone);
  margin-bottom: 12px;
}

.rail-index__tag {
  display: block;
  max-width: 12ch;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.kicker {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 22px;
}

.brand-mark {
  text-transform: none;
}

.chapter h2 {
  max-width: 20ch;
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.014em;
  color: var(--ink);
}

.chapter__note {
  max-width: 42ch;
  margin-top: 22px;
  color: var(--ink-soft);
  font-size: 1.05rem;
  line-height: 1.62;
}

.prose {
  max-width: var(--measure);
  display: grid;
  gap: 22px;
}

.prose p {
  color: var(--ink-soft);
  font-size: 1.05rem;
  line-height: 1.75;
}

.prose a {
  color: var(--ink);
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 1px;
  transition: border-color 0.2s ease;
}

.prose a:hover {
  border-color: var(--signal);
}

/* =====================  01 · FRICTION LEDGER  ===================== */
.ledger {
  display: grid;
  border-top: 1px solid var(--line);
}

.ledger__row {
  display: grid;
  grid-template-columns: 3.4rem minmax(0, 1fr);
  align-items: start;
  gap: clamp(16px, 3vw, 40px);
  padding: clamp(20px, 2.4vw, 30px) 0;
  border-bottom: 1px solid var(--line-soft);
  transition: background 0.3s ease;
}

.ledger__row:hover {
  background: linear-gradient(90deg, rgba(201, 123, 74, 0.03), transparent 60%);
}

.ledger__num {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--signal);
  padding-top: 6px;
}

.ledger__row h3 {
  max-width: 40ch;
  font-size: clamp(1.15rem, 1.9vw, 1.5rem);
  font-weight: 450;
  line-height: 1.22;
  letter-spacing: -0.006em;
  color: var(--ink);
}

/* =====================  02 · OUTCOMES INDEX  ===================== */
.signal-index {
  margin-top: clamp(40px, 5vw, 64px);
  padding-top: 30px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 40px;
}

.signal-index span {
  position: relative;
  padding-left: 22px;
  color: var(--ink-soft);
  font-size: 0.98rem;
  line-height: 1.5;
}

.signal-index span::before {
  content: "+";
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--mono);
  color: var(--signal);
}

/* =====================  03 · METHOD  ===================== */
.steps {
  margin-top: clamp(40px, 5vw, 60px);
  display: grid;
  border-top: 1px solid var(--line);
}

.step {
  display: grid;
  grid-template-columns: minmax(120px, 0.24fr) minmax(0, 1fr);
  gap: clamp(16px, 3vw, 48px);
  padding: clamp(22px, 2.6vw, 34px) 0;
  border-bottom: 1px solid var(--line-soft);
}

.step__label {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
  padding-top: 4px;
}

.step h3 {
  max-width: 52ch;
  font-size: clamp(1.1rem, 1.7vw, 1.4rem);
  font-weight: 450;
  line-height: 1.32;
  color: var(--ink);
}

/* =====================  04 · ENGAGEMENTS  ===================== */
.entries {
  display: grid;
  border-top: 1px solid var(--line);
}

.entry {
  display: grid;
  grid-template-columns: 3.4rem minmax(0, 1fr);
  gap: clamp(16px, 3vw, 40px);
  padding: clamp(28px, 3.4vw, 46px) 0;
  border-bottom: 1px solid var(--line-soft);
}

.entry__num {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--signal);
  padding-top: 6px;
}

.entry__body {
  display: grid;
  gap: 16px;
}

.entry h3 {
  font-size: clamp(1.3rem, 2.2vw, 1.85rem);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.entry__body > p {
  max-width: var(--measure);
  color: var(--ink-soft);
  font-size: 1.02rem;
  line-height: 1.72;
}

.entry__meta {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
  padding-top: 4px;
}

/* =====================  05 · CASE FILES  ===================== */
.files {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.file {
  display: grid;
  grid-template-columns: 3.4rem minmax(0, 0.9fr) minmax(0, 1.4fr);
  gap: clamp(16px, 3vw, 48px);
  padding: clamp(30px, 3.6vw, 52px) 0;
  border-bottom: 1px solid var(--line-soft);
}

.file__num {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--signal);
  padding-top: 6px;
}

.file__head .article-meta {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--stone-soft);
  margin-bottom: 14px;
}

.file__head h3 {
  font-size: clamp(1.25rem, 2vw, 1.6rem);
  font-weight: 500;
  line-height: 1.18;
  letter-spacing: -0.008em;
  color: var(--ink);
}

.file__copy {
  display: grid;
  gap: 18px;
}

.file__copy p {
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.68;
}

.file__copy strong {
  display: block;
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 5px;
}

/* =====================  06 · ABOUT  ===================== */
/* deliberate break in the section rhythm: no ghost numeral, no spine,
   a large portrait sitting directly against the navy field with text alongside */
.about__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.5fr);
  column-gap: clamp(36px, 5vw, 88px);
  align-items: start;
}

.about__portrait {
  margin: 0;
  position: sticky;
  top: 96px;
}

.about__portrait img {
  display: block;
  width: 100%;
  height: auto;
}

.about__content {
  min-width: 0;
}

.about__subhead {
  max-width: 34ch;
  margin-top: 26px;
  color: var(--ink-soft);
  font-size: 1.24rem;
  font-weight: 450;
  line-height: 1.35;
}

/* =====================  CLOSING  ===================== */
.closing {
  padding: clamp(80px, 12vw, 168px) 0;
}

.closing__grid {
  display: grid;
  grid-template-columns: var(--rail) minmax(0, 1fr);
  column-gap: var(--colgap);
  align-items: end;
}

.closing__body {
  display: grid;
  gap: 34px;
}

.closing h2 {
  max-width: 16ch;
  font-size: clamp(2.4rem, 5.5vw, 4.4rem);
  font-weight: 500;
  line-height: 1.02;
  letter-spacing: -0.018em;
  color: var(--ink);
}

.primary-action {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 15px 26px;
  background: transparent;
  border: 1px solid var(--line-strong);
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  cursor: pointer;
  transition: background 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

.primary-action::after {
  content: "\2192";
  transition: transform 0.25s ease;
}

.primary-action:hover {
  background: var(--signal);
  border-color: var(--signal);
  color: #0c1017;
}

.primary-action:hover::after {
  transform: translateX(5px);
}

/* =====================  CONTACT MODAL  ===================== */
.contact-modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--gutter);
}

.contact-modal[hidden] {
  display: none;
}

.contact-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(7, 11, 18, 0.72);
  backdrop-filter: blur(6px) saturate(1.05);
  animation: contact-fade 0.25s ease;
}

.contact-modal__dialog {
  position: relative;
  width: min(520px, 100%);
  max-height: calc(100vh - (var(--gutter) * 2));
  overflow-y: auto;
  padding: clamp(28px, 4vw, 44px);
  background: var(--field-deep);
  border: 1px solid var(--line);
  box-shadow: 0 40px 80px -30px var(--shadow);
  animation: contact-rise 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.contact-modal__close {
  position: absolute;
  top: 14px;
  right: 16px;
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  font-size: 1.6rem;
  line-height: 1;
  color: var(--ink-muted);
  cursor: pointer;
  transition: color 0.2s ease;
}

.contact-modal__close:hover {
  color: var(--ink);
}

.contact-modal__kicker {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal);
  margin: 0 0 14px;
}

.contact-modal__title {
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  font-weight: 500;
  line-height: 1.06;
  letter-spacing: -0.014em;
  color: var(--ink);
  margin: 0;
}

.contact-modal__lede {
  margin: 16px 0 0;
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.6;
}

.contact-form {
  margin-top: clamp(24px, 3vw, 34px);
  display: grid;
  gap: 22px;
}

.contact-form__honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.contact-field {
  display: grid;
  gap: 8px;
}

.contact-field__label {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.contact-field__input {
  width: 100%;
  padding: 10px 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  transition: border-color 0.2s ease;
}

.contact-field__input:focus {
  outline: none;
  border-bottom-color: var(--signal);
}

.contact-field__textarea {
  resize: vertical;
  min-height: 96px;
  line-height: 1.55;
}

.contact-form__submit {
  justify-self: start;
  margin-top: 4px;
}

.contact-form__submit[disabled] {
  opacity: 0.55;
  cursor: default;
}

.contact-form__status {
  margin: 0;
  min-height: 1.2em;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  color: var(--ink-muted);
}

.contact-form__status.is-error {
  color: var(--signal);
}

.contact-form__status.is-success {
  color: var(--stone-soft);
}

@keyframes contact-fade {
  from {
    opacity: 0;
  }
}

@keyframes contact-rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .contact-modal__backdrop,
  .contact-modal__dialog {
    animation: none;
  }
}

/* =====================  FOOTER  ===================== */
.doc-footer {
  padding: 40px 0 56px;
  border-top: 1px solid var(--line);
}

.doc-footer__grid {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 18px 40px;
  justify-content: space-between;
}

.doc-footer p {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
}

.doc-footer__brand {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--ink);
}

.doc-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.doc-footer nav a:hover {
  color: var(--signal);
}

/* =====================  REVEAL MOTION  ===================== */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s cubic-bezier(0.22, 0.61, 0.36, 1),
    transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* =====================  RESPONSIVE  ===================== */
@media (max-width: 900px) {
  .file {
    grid-template-columns: 3rem 1fr;
  }

  .file__copy {
    grid-column: 1 / -1;
    padding-top: 20px;
  }

  .signal-index {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .doc-nav {
    display: none;
  }

  .leaf,
  .toc__grid,
  .cover__statement,
  .about__grid,
  .closing__grid {
    grid-template-columns: 1fr;
    row-gap: 26px;
  }

  .about__portrait {
    position: static;
    max-width: 320px;
  }

  .leaf::before {
    display: none;
  }

  .rail-index {
    position: static;
    display: flex;
    align-items: baseline;
    gap: 16px;
  }

  .rail-index__num {
    margin-bottom: 0;
    font-size: 2.4rem;
  }

  .step,
  .entry {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .toc__row {
    grid-template-columns: 2.6rem 1fr auto;
  }
}