:root {
  --clr-text: #1e1e1e;
  --clr-accent-primary: #f25c05;
  --clr-accent-secondary: #b85c38;
  --clr-bg-primary: #efe9e4;
  --clr-bg-secondary: #d9d3cc;
  --clr-border: #c4b6a9;
  --clr-white: #fffaf6;
  --font-body: "Lato", sans-serif;
  --font-display: "Playfair Display", serif;
  --shadow: 0 18px 50px rgba(30, 30, 30, 0.1);
  --shadow-hover: 0 24px 58px rgba(30, 30, 30, 0.15);
  --motion-ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--clr-text);
  background: var(--clr-bg-primary);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

body::before,
body::after {
  content: "";
  position: fixed;
  top: 82px;
  bottom: 0;
  width: clamp(34px, 5vw, 78px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.42;
  background-image:
    repeating-linear-gradient(
      135deg,
      rgba(184, 92, 56, 0.13) 0,
      rgba(184, 92, 56, 0.13) 1px,
      transparent 1px,
      transparent 15px
    );
  animation: side-pattern-drift 18s linear infinite;
  will-change: transform;
}

main,
.site-footer {
  position: relative;
  z-index: 1;
}

body::before {
  left: 0;
  border-right: 1px solid rgba(196, 182, 169, 0.42);
}

body::after {
  right: 0;
  border-left: 1px solid rgba(196, 182, 169, 0.42);
  animation-direction: reverse;
}

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

a {
  color: inherit;
}

h1,
h2 {
  font-family: var(--font-display);
  line-height: 1.05;
  margin: 0;
}

h1 {
  font-size: clamp(3rem, 7vw, 6.8rem);
  max-width: 950px;
}

h2 {
  font-size: clamp(2.1rem, 4.8vw, 4.2rem);
}

h3 {
  margin: 0 0 0.75rem;
  font-size: 1.25rem;
  line-height: 1.25;
}

p {
  margin: 0;
}

p + p {
  margin-top: 1rem;
}

ul {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
}

li + li {
  margin-top: 0.7rem;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  background: var(--clr-accent-primary);
  color: var(--clr-white);
  padding: 0.7rem 1rem;
  z-index: 20;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem clamp(1rem, 4vw, 3rem);
  background: rgba(239, 233, 228, 0.94);
  border-bottom: 1px solid var(--clr-border);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(30, 30, 30, 0.02);
}

.brand img {
  width: 88px;
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.8rem, 2vw, 1.5rem);
  font-weight: 700;
}

.site-nav a {
  text-decoration: none;
  padding-bottom: 0.25rem;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--clr-accent-primary);
  border-color: var(--clr-accent-primary);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--clr-border);
  background: transparent;
  border-radius: 4px;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: var(--clr-text);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.75fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  min-height: calc(100vh - 82px);
  padding: clamp(3rem, 7vw, 6rem) clamp(1rem, 5vw, 5rem);
}

.hero-lede {
  max-width: 720px;
  margin-top: 1.5rem;
  font-size: clamp(1.15rem, 2vw, 1.45rem);
}

.eyebrow {
  margin-bottom: 1rem;
  color: var(--clr-accent-secondary);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-actions,
.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.85rem 1.2rem;
  border: 2px solid var(--clr-accent-primary);
  border-radius: 4px;
  font-weight: 900;
  text-decoration: none;
  text-transform: uppercase;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
  will-change: transform;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
}

.btn-solid {
  background: var(--clr-accent-primary);
  color: var(--clr-white);
}

.btn-outline {
  color: var(--clr-accent-primary);
}

.btn-light {
  border-color: var(--clr-white);
  color: var(--clr-white);
}

.hero-image {
  margin: 0;
}

.hero-image img,
.full-image {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow);
  transition: box-shadow 0.35s var(--motion-ease), transform 0.35s var(--motion-ease);
}

.hero-image:hover img,
.full-image:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px) scale(1.01);
}

.hero-image figcaption {
  margin-top: 1rem;
  color: var(--clr-accent-secondary);
  font-weight: 900;
  text-align: center;
}

.feature-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-block: 1px solid var(--clr-border);
}

.feature-strip a {
  min-height: 160px;
  padding: clamp(1.2rem, 3vw, 2rem);
  text-decoration: none;
  border-right: 1px solid var(--clr-border);
  background:
    linear-gradient(90deg, rgba(242, 92, 5, 0.08), transparent 42%),
    var(--clr-bg-primary);
  background-size: 220% 100%;
  transition: background-position 0.35s var(--motion-ease), box-shadow 0.35s var(--motion-ease), transform 0.35s var(--motion-ease);
}

.feature-strip a:hover,
.feature-strip a:focus-visible {
  background-position: 100% 0;
  box-shadow: inset 0 -4px 0 var(--clr-accent-primary);
  transform: translateY(-2px);
}

.feature-strip a:last-child {
  border-right: 0;
}

.feature-strip strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  color: var(--clr-accent-primary);
}

.feature-strip span {
  display: block;
  max-width: 340px;
  margin-top: 0.6rem;
}

.section {
  padding: clamp(4rem, 8vw, 7rem) clamp(1rem, 5vw, 5rem);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}

.rich-copy {
  font-size: 1.08rem;
}

.profile {
  width: 132px;
  height: 132px;
  object-fit: cover;
  border-radius: 50%;
  margin-bottom: 1.5rem;
  border: 4px solid var(--clr-bg-secondary);
}

blockquote {
  margin: 2rem 0 0;
  padding-left: 1.3rem;
  border-left: 4px solid var(--clr-accent-primary);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 2rem);
  line-height: 1.25;
}

.muted {
  background: var(--clr-bg-secondary);
}

.rust {
  background: var(--clr-accent-secondary);
  color: var(--clr-white);
}

.rust .eyebrow {
  color: var(--clr-bg-primary);
}

.section-heading {
  max-width: 790px;
  margin-bottom: 2.2rem;
}

.section-heading p:last-child {
  max-width: 690px;
  margin-top: 1rem;
  font-size: 1.1rem;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--clr-border);
  border: 1px solid var(--clr-border);
}

.timeline article,
.card,
.resource-card,
.credential-grid article {
  background: var(--clr-bg-primary);
  padding: clamp(1.25rem, 2.5vw, 2rem);
}

.timeline span {
  display: inline-flex;
  margin-bottom: 1rem;
  color: var(--clr-accent-primary);
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
}

.card-grid,
.resource-grid,
.credential-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.card,
.resource-card,
.credential-grid article {
  border: 1px solid var(--clr-border);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(30, 30, 30, 0.04);
  transition: border-color 0.35s var(--motion-ease), box-shadow 0.35s var(--motion-ease), transform 0.35s var(--motion-ease), background-color 0.35s var(--motion-ease);
}

.timeline article,
.topic-list article,
.steps span {
  transition: border-color 0.35s var(--motion-ease), box-shadow 0.35s var(--motion-ease), transform 0.35s var(--motion-ease), background-color 0.35s var(--motion-ease);
}

.timeline article:hover,
.card:hover,
.resource-card:hover,
.credential-grid article:hover,
.topic-list article:hover {
  border-color: rgba(242, 92, 5, 0.45);
  box-shadow: var(--shadow-hover);
  transform: translateY(-6px) scale(1.012);
}

.timeline article:hover,
.card:hover,
.resource-card:hover,
.credential-grid article:hover {
  background-color: var(--clr-white);
}

.card {
  min-height: 250px;
}

.topic-list {
  display: grid;
  gap: 1rem;
}

.topic-list article {
  padding: 1.5rem;
  border: 1px solid rgba(255, 250, 246, 0.35);
  border-radius: 8px;
  background: rgba(255, 250, 246, 0.05);
}

.topic-list article:hover {
  box-shadow: 0 20px 46px rgba(30, 30, 30, 0.18);
  background: rgba(255, 250, 246, 0.1);
}

.library-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  align-items: center;
  margin-bottom: 1.5rem;
}

.filter-btn {
  min-height: 40px;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--clr-border);
  border-radius: 999px;
  background: transparent;
  color: var(--clr-text);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.filter-btn.active,
.filter-btn:hover {
  background: var(--clr-accent-primary);
  color: var(--clr-white);
  border-color: var(--clr-accent-primary);
  transform: translateY(-1px);
}

.search-label {
  margin-left: auto;
}

.search-label span,
.newsletter-form span,
.contact-form span {
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 900;
}

input,
select,
textarea {
  width: 100%;
  min-height: 46px;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--clr-border);
  border-radius: 4px;
  background: var(--clr-white);
  color: var(--clr-text);
  font: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--clr-accent-primary);
  box-shadow: 0 0 0 3px rgba(242, 92, 5, 0.16);
  outline: none;
}

.resource-card {
  min-height: 250px;
}

.resource-card .tag {
  width: fit-content;
  margin-bottom: 1rem;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  background: var(--clr-bg-secondary);
  color: var(--clr-accent-secondary);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.resource-card a {
  display: inline-block;
  margin-top: 1.2rem;
  color: var(--clr-accent-primary);
  font-weight: 900;
}

.resource-card.hidden {
  display: none;
}

.academic-section {
  border-block: 1px solid var(--clr-border);
}

.academic-tools {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.academic-tools .search-label {
  width: min(100%, 520px);
  margin-left: 0;
}

.article-meta-summary {
  color: var(--clr-accent-secondary);
  font-size: 0.88rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.academic-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.42fr) minmax(0, 1fr);
  gap: clamp(1.25rem, 3vw, 2.5rem);
  align-items: start;
}

.article-index {
  position: sticky;
  top: 104px;
  max-height: calc(100vh - 132px);
  overflow: auto;
  border: 1px solid var(--clr-border);
  border-radius: 8px;
  background: rgba(255, 250, 246, 0.42);
  box-shadow: 0 10px 28px rgba(30, 30, 30, 0.06);
}

.article-index-head,
.article-index button {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 0.75rem;
  width: 100%;
}

.article-index-head {
  position: sticky;
  top: 0;
  z-index: 1;
  padding: 0.85rem 1rem;
  background: var(--clr-text);
  color: var(--clr-white);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.article-index button {
  padding: 1rem;
  border: 0;
  border-bottom: 1px solid var(--clr-border);
  background: transparent;
  color: var(--clr-text);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.article-index button:hover,
.article-index button:focus-visible,
.article-index button.is-active {
  background: var(--clr-white);
  color: var(--clr-accent-primary);
  outline: none;
}

.article-index .index-number {
  font-family: var(--font-display);
  font-size: 1.35rem;
  line-height: 1;
}

.article-index .index-title {
  display: block;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.25;
}

.article-index .index-meta {
  display: block;
  margin-top: 0.4rem;
  color: var(--clr-accent-secondary);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.article-reader {
  min-height: 520px;
  padding: clamp(1.35rem, 4vw, 3rem);
  border: 1px solid var(--clr-border);
  border-radius: 8px;
  background: var(--clr-white);
  box-shadow: var(--shadow);
}

.article-placeholder {
  color: var(--clr-accent-secondary);
  font-family: var(--font-display);
  font-size: 1.5rem;
}

.article-kicker {
  color: var(--clr-accent-secondary);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.article-reader h3 {
  margin: 0.65rem 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.45rem);
  line-height: 1.08;
}

.article-citation {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1rem;
  padding-block: 1rem;
  border-block: 1px solid var(--clr-border);
  color: var(--clr-accent-secondary);
  font-size: 0.9rem;
  font-weight: 900;
}

.article-abstract {
  margin-top: 1.4rem;
  padding: 1.2rem;
  border-left: 4px solid var(--clr-accent-primary);
  background: var(--clr-bg-primary);
}

.article-cover {
  width: 100%;
  margin: 1.4rem 0;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--clr-border);
}

.article-body {
  columns: 1;
  max-width: 830px;
}

.article-body p {
  max-width: 100%;
  margin-top: 1rem;
  font-size: 1.08rem;
  line-height: 1.82;
}

.article-body h4 {
  margin: 2rem 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
  line-height: 1.2;
}

.article-source-link {
  display: inline-block;
  margin-top: 2rem;
  color: var(--clr-accent-primary);
  font-weight: 900;
}

.article-index button.hidden {
  display: none;
}

.steps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.5rem 0;
}

.steps span {
  padding: 0.45rem 0.7rem;
  border: 1px solid var(--clr-border);
  border-radius: 999px;
  background: var(--clr-bg-primary);
  font-weight: 900;
}

.steps span:hover {
  border-color: var(--clr-accent-primary);
  transform: translateY(-2px);
}

.credential-grid {
  grid-template-columns: repeat(2, 1fr);
}

.newsletter {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 480px);
  gap: 2rem;
  align-items: end;
  padding: clamp(3rem, 6vw, 5rem) clamp(1rem, 5vw, 5rem);
  background: var(--clr-text);
  color: var(--clr-white);
}

.newsletter .eyebrow {
  color: var(--clr-bg-secondary);
}

.newsletter-form {
  display: grid;
  gap: 0.9rem;
}

.contact-form {
  display: grid;
  gap: 0.95rem;
}

.contact-links a {
  color: var(--clr-accent-primary);
  font-weight: 900;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  padding: 2rem clamp(1rem, 5vw, 5rem);
  border-top: 1px solid var(--clr-border);
}

.site-footer img {
  width: 72px;
}

.site-footer a {
  color: var(--clr-accent-primary);
  font-weight: 900;
}

.reveal-on-scroll {
  opacity: 0;
  transform: translate3d(0, 22px, 0);
  transition:
    opacity 0.7s var(--motion-ease),
    transform 0.7s var(--motion-ease),
    border-color 0.35s var(--motion-ease),
    box-shadow 0.35s var(--motion-ease),
    background-color 0.35s var(--motion-ease);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

@keyframes side-pattern-drift {
  from {
    transform: translate3d(0, 0, 0);
  }

  to {
    transform: translate3d(0, -120px, 0);
  }
}

@media (max-width: 980px) {
  .hero,
  .split,
  .newsletter {
    grid-template-columns: 1fr;
  }

  .timeline,
  .card-grid,
  .resource-grid,
  .academic-layout {
    grid-template-columns: repeat(2, 1fr);
  }

  .academic-layout {
    grid-template-columns: 1fr;
  }

  .article-index {
    position: static;
    max-height: 420px;
  }

  .feature-strip {
    grid-template-columns: 1fr;
  }

  .feature-strip a {
    border-right: 0;
    border-bottom: 1px solid var(--clr-border);
  }

  .feature-strip a:last-child {
    border-bottom: 0;
  }
}

@media (max-width: 760px) {
  body::before,
  body::after {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    background: var(--clr-bg-primary);
    border-bottom: 1px solid var(--clr-border);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 0.8rem;
  }

  .timeline,
  .card-grid,
  .resource-grid,
  .credential-grid,
  .academic-layout {
    grid-template-columns: 1fr;
  }

  .academic-tools {
    align-items: stretch;
    flex-direction: column;
  }

  .hero {
    min-height: auto;
  }

  .search-label {
    width: 100%;
    margin-left: 0;
  }

  .site-footer {
    flex-direction: column;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .reveal-on-scroll {
    opacity: 1;
    transform: none;
  }

  .timeline article:hover,
  .card:hover,
  .resource-card:hover,
  .credential-grid article:hover,
  .topic-list article:hover,
  .hero-image:hover img,
  .full-image:hover,
  .feature-strip a:hover,
  .feature-strip a:focus-visible {
    transform: none;
  }
}