:root {
  --bg: #ffffff;
  --surface: #ffffff;
  --ink: #050505;
  --muted: #6f6f6f;
  --soft: #f4f4f4;
  --line: #e6e6e6;
  --line-strong: #050505;
  --accent: #0057ff;
  --accent-2: #f35a9b;
  --reader-size: 1.06rem;
  --measure: 68ch;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Helvetica Neue", Helvetica, Arial, ui-sans-serif, system-ui, sans-serif;
  line-height: 1.45;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--ink);
  color: var(--bg);
}

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

button,
input,
select {
  font: inherit;
}

.progress {
  position: fixed;
  inset: 0 0 auto;
  z-index: 30;
  height: 2px;
  background: transparent;
}

.progress span {
  display: block;
  width: 0%;
  height: 100%;
  background: var(--ink);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  padding: 2rem max(1.25rem, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-grid;
  gap: 0.18rem;
}

.brand__name {
  font-size: clamp(1.65rem, 3vw, 2.65rem);
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: 0;
}

.brand__discipline {
  color: var(--muted);
  font-size: 0.68rem;
  letter-spacing: 0.48em;
  text-transform: uppercase;
}

.site-header nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 1.6rem;
  padding-top: 0.2rem;
}

.site-header nav a {
  border-bottom: 1px solid transparent;
  color: var(--ink);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.site-header nav a:hover,
.site-header nav a:focus-visible {
  border-color: currentColor;
  outline: none;
}

.hero {
  border-bottom: 1px solid var(--line-strong);
  background: var(--surface);
}

.hero__inner {
  display: grid;
  max-width: 1180px;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(2.8rem, 7vw, 5.5rem);
  margin: 0 auto;
  padding: clamp(4.5rem, 10vw, 8rem) 1.25rem clamp(3.8rem, 7vw, 5.75rem);
}

.hero__copy {
  max-width: 980px;
}

.kicker,
.eyebrow {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 880px;
  margin-bottom: 1.45rem;
  font-size: clamp(2.1rem, 4.9vw, 4.15rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0;
  text-wrap: balance;
  text-transform: uppercase;
  overflow-wrap: break-word;
}

.lead {
  max-width: 660px;
  margin-bottom: 1.4rem;
  color: var(--muted);
  font-size: clamp(1rem, 1.55vw, 1.2rem);
}

.hero-actions,
.text-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button,
.text-controls button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ink);
  border-radius: 0;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.button {
  padding: 0.72rem 1rem;
}

.button--primary {
  background: var(--ink);
  color: #fff;
}

.button:hover,
.button:focus-visible,
.text-controls button:hover,
.text-controls button:focus-visible {
  background: var(--ink);
  color: #fff;
  outline: none;
}

.stats {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin: 2.2rem 0 0;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
}

.stats div {
  padding: 1rem 1rem 1rem 0;
}

.stats div + div {
  border-left: 1px solid var(--line);
  padding-left: 1rem;
}

.stats dt {
  font-size: clamp(1.5rem, 3vw, 2.35rem);
  font-weight: 400;
  line-height: 1;
}

.stats dd {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.toolbar {
  display: grid;
  max-width: 1180px;
  grid-template-columns: minmax(220px, 1fr) minmax(240px, 340px) auto auto;
  align-items: end;
  gap: 1rem;
  margin: 0 auto;
  padding: 2.4rem 1.25rem 1.35rem;
}

.toolbar h2,
.index-header h2 {
  margin-bottom: 0;
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.search {
  display: grid;
  gap: 0.45rem;
  color: var(--muted);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.search input {
  width: 100%;
  min-height: 42px;
  border: 0;
  border-bottom: 1px solid var(--ink);
  border-radius: 0;
  padding: 0.65rem 0;
  background: transparent;
  color: var(--ink);
  letter-spacing: 0;
  text-transform: none;
}

.search input:focus {
  border-color: var(--accent);
  outline: none;
}

.filters {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0;
  border: 1px solid var(--ink);
}

.filter-button {
  min-height: 40px;
  border: 0;
  border-radius: 0;
  padding: 0.55rem 0.8rem;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.filter-button + .filter-button {
  border-left: 1px solid var(--ink);
}

.filter-button:hover,
.filter-button:focus-visible,
.filter-button.is-active {
  background: var(--ink);
  color: #fff;
  outline: none;
}

.text-controls button {
  width: 46px;
  padding: 0.5rem;
}

.layout {
  display: grid;
  max-width: 1180px;
  grid-template-columns: minmax(260px, 360px) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5rem);
  margin: 0 auto;
  padding: 1rem 1.25rem 5rem;
}

.post-index {
  position: sticky;
  top: 116px;
  align-self: start;
  max-height: calc(100vh - 136px);
  overflow: auto;
  padding-right: 0.5rem;
}

.index-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 0.9rem;
}

.index-header p {
  margin: 0;
  color: var(--muted);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.post-list {
  display: grid;
}

.post-card {
  display: block;
  content-visibility: auto;
  contain-intrinsic-size: 150px;
  border-bottom: 1px solid var(--line);
  padding: 1.05rem 0 1.15rem;
  background: var(--surface);
}

.post-card:hover,
.post-card:focus-visible,
.post-card.is-active {
  color: var(--ink);
  outline: none;
}

.post-card:hover h3,
.post-card:focus-visible h3,
.post-card.is-active h3 {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

.post-card.is-active {
  border-bottom-color: var(--ink);
}

.post-card__meta,
.reader__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.55rem;
  color: var(--muted);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.post-card h3 {
  margin-bottom: 0.55rem;
  font-size: 0.98rem;
  font-weight: 400;
  line-height: 1.18;
  text-transform: uppercase;
}

.post-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

.tag {
  color: var(--ink);
}

.tag::before {
  content: "/";
  color: var(--muted);
  padding-right: 0.25rem;
}

.reader {
  min-width: 0;
  content-visibility: auto;
  contain-intrinsic-size: 900px;
}

.reader__head {
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
  padding: 1.2rem 0 1.45rem;
}

.reader h2 {
  max-width: 760px;
  margin-bottom: 1rem;
  font-size: clamp(1.65rem, 3.3vw, 2.9rem);
  font-weight: 400;
  line-height: 1.06;
  letter-spacing: 0;
  text-wrap: balance;
  text-transform: uppercase;
  overflow-wrap: break-word;
}

.reader__excerpt {
  max-width: 680px;
  color: var(--muted);
  font-size: 0.98rem;
}

.reader__notice {
  max-width: 680px;
  border-left: 2px solid var(--ink);
  padding-left: 0.85rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.reader__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.2rem;
}

.reader__actions button,
.reader__actions a {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ink);
  border-radius: 0;
  padding: 0.52rem 0.76rem;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.reader__actions button:hover,
.reader__actions button:focus-visible,
.reader__actions a:hover,
.reader__actions a:focus-visible {
  background: var(--ink);
  color: #fff;
  outline: none;
}

.reader__body {
  max-width: var(--measure);
  padding-top: 1.6rem;
  font-family: Georgia, "Times New Roman", ui-serif, serif;
  font-size: var(--reader-size);
  line-height: 1.78;
  overflow-wrap: break-word;
  hyphens: auto;
}

.reader__body p {
  margin-bottom: 1.2rem;
}

.reader__body--essay p:first-child::first-letter {
  float: left;
  padding: 0.1rem 0.5rem 0 0;
  font-size: 4.2rem;
  line-height: 0.78;
}

.page-engagement {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 1.25rem 4rem;
}

.engagement {
  display: grid;
  max-width: 100%;
  gap: 1.2rem;
  margin-top: 0;
  border-top: 1px solid var(--ink);
  padding-top: 1.4rem;
}

.engagement__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
  gap: 1px;
  border: 1px solid var(--ink);
  background: var(--ink);
}

.engagement__panel {
  display: grid;
  align-content: start;
  gap: 0.85rem;
  background: var(--surface);
  padding: 1rem;
}

.engagement__label,
.engagement__panel label {
  color: var(--muted);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.engagement__count {
  font-size: clamp(2rem, 6vw, 3.7rem);
  line-height: 0.92;
}

.engagement__hint,
.comments__empty,
.subscription__status,
.comment__meta {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.45;
}

.comments,
.subscription {
  display: grid;
  gap: 0.85rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1.2rem;
}

.comments {
  max-width: var(--measure);
}

.comments h3,
.subscription h3 {
  margin: 0;
  font-size: 0.86rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.comments__list {
  display: grid;
  gap: 0.75rem;
}

.comment {
  border-left: 1px solid var(--ink);
  padding-left: 0.8rem;
}

.comment p {
  margin-bottom: 0.35rem;
  font-family: Georgia, "Times New Roman", ui-serif, serif;
  line-height: 1.55;
}

.form-stack {
  display: grid;
  gap: 0.7rem;
}

.form-stack input,
.form-stack textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0;
  padding: 0.7rem;
  background: var(--surface);
  color: var(--ink);
}

.form-stack textarea {
  min-height: 104px;
  resize: vertical;
}

.form-stack input:focus,
.form-stack textarea:focus {
  border-color: var(--ink);
  outline: none;
}

.form-stack button {
  justify-self: start;
  min-height: 40px;
  border: 1px solid var(--ink);
  border-radius: 0;
  padding: 0.58rem 0.8rem;
  background: var(--ink);
  color: #fff;
  cursor: pointer;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.form-stack button:hover,
.form-stack button:focus-visible {
  background: var(--surface);
  color: var(--ink);
  outline: none;
}

.reader__nav {
  display: grid;
  max-width: var(--measure);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 2.8rem;
  border: 1px solid var(--ink);
  background: var(--ink);
}

.reader__nav-link {
  display: grid;
  min-height: 112px;
  align-content: space-between;
  gap: 1.2rem;
  padding: 0.9rem;
  background: var(--surface);
}

.reader__nav-link:hover,
.reader__nav-link:focus-visible {
  background: var(--ink);
  color: #fff;
  outline: none;
}

.reader__nav-link span {
  color: var(--muted);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.reader__nav-link:hover span,
.reader__nav-link:focus-visible span {
  color: inherit;
}

.reader__nav-link strong {
  font-size: 0.86rem;
  font-weight: 400;
  line-height: 1.2;
  text-transform: uppercase;
}

.reader__nav-link--next {
  text-align: right;
}

.empty {
  border-bottom: 1px solid var(--line);
  padding: 1.2rem 0;
  color: var(--muted);
}

.site-footer {
  display: grid;
  gap: 0.4rem;
  border-top: 1px solid var(--ink);
  padding: 2rem 1.25rem;
  color: var(--muted);
  text-align: center;
}

.site-footer p {
  margin-bottom: 0;
}

.site-footer strong {
  color: var(--ink);
  font-weight: 400;
}

@media (max-width: 900px) {
  .site-header {
    position: static;
    gap: 1.2rem;
    padding-block: 1.4rem;
  }

  .hero__inner,
  .toolbar,
  .layout {
    grid-template-columns: 1fr;
  }

  .post-index {
    position: static;
    max-height: 52vh;
    overflow: auto;
    padding-right: 0.35rem;
  }
}

@media (max-width: 620px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem 1rem 1.1rem;
  }

  .site-header nav {
    justify-content: flex-start;
    width: 100%;
    gap: 0.85rem;
  }

  .site-header nav a {
    font-size: 0.66rem;
    letter-spacing: 0.12em;
  }

  .brand__discipline {
    letter-spacing: 0.36em;
  }

  .hero__inner {
    gap: 1.6rem;
    padding: 2.2rem 1rem 1.9rem;
  }

  h1 {
    font-size: clamp(1.85rem, 11vw, 2.85rem);
    line-height: 1.03;
    overflow-wrap: anywhere;
  }

  .lead {
    font-size: 1rem;
  }

  .toolbar,
  .layout,
  .page-engagement {
    padding-inline: 1rem;
  }

  .toolbar {
    padding-top: 1.4rem;
    gap: 1.1rem;
  }

  .hero-actions .button {
    width: 100%;
  }

  .post-index {
    max-height: 34vh;
    border-bottom: 1px solid var(--ink);
    margin-bottom: 0.8rem;
  }

  .post-card {
    padding: 0.9rem 0 1rem;
  }

  .post-card p {
    display: -webkit-box;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
  }

  .stats {
    grid-template-columns: 1fr;
  }

  .stats div + div {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-left: 0;
  }

  .filters {
    width: 100%;
  }

  .filter-button {
    flex: 1;
    padding-inline: 0.45rem;
  }

  .reader__body {
    font-size: calc(var(--reader-size) * 0.96);
    line-height: 1.72;
  }

  .reader h2 {
    font-size: clamp(1.65rem, 9vw, 2.2rem);
  }

  .reader__body--essay p:first-child::first-letter {
    float: none;
    padding: 0;
    font-size: inherit;
    line-height: inherit;
  }

  .reader__actions button,
  .reader__actions a {
    width: 100%;
  }

  .engagement__grid {
    grid-template-columns: 1fr;
  }

  .form-stack button {
    width: 100%;
  }

  .reader__nav {
    grid-template-columns: 1fr;
  }

  .reader__nav-link--next {
    text-align: left;
  }
}

@media (max-width: 430px) {
  .brand__name {
    font-size: 1.95rem;
  }

  .site-header nav {
    gap: 0.7rem;
  }

  .hero__inner {
    padding-top: 1.7rem;
  }

  .stats {
    margin-top: 1.2rem;
  }

  .toolbar {
    padding-top: 1rem;
  }

  .search input,
  .filters,
  .text-controls {
    width: 100%;
  }

  .text-controls button {
    flex: 1;
  }

  .post-index {
    max-height: 28vh;
  }

  .reader__head {
    padding-top: 0.95rem;
  }

  .reader__meta {
    gap: 0.32rem;
    letter-spacing: 0.1em;
  }

  .reader__body {
    padding-top: 1.2rem;
  }

  .engagement {
    margin-top: 1.8rem;
  }

  .engagement__panel {
    padding: 0.9rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}