:root {
  --ink: #061a2f;
  --ink-soft: #29465f;
  --paper: #f5f3ed;
  --paper-deep: #e9e5da;
  --white: #fffefa;
  --signal: #d6a53f;
  --signal-dark: #8f6815;
  --blue: #0b79b7;
  --mint: #58add6;
  --line: rgba(6, 26, 47, 0.18);
  --max: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
::selection { background: var(--signal); color: var(--ink); }
.skip-link {
  background: var(--signal);
  left: 18px;
  padding: 12px 16px;
  position: fixed;
  top: -80px;
  z-index: 100;
}
.skip-link:focus { top: 18px; }

.site-header {
  align-items: center;
  background: rgba(245, 243, 237, 0.95);
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  min-height: 86px;
  padding: 0 max(28px, calc((100vw - var(--max)) / 2));
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(16px);
}
.brand { align-items: center; display: inline-flex; gap: 12px; justify-self: start; }
.brand-logo { height: 50px; width: auto; }
.brand-name {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-transform: uppercase;
}
.brand-name small {
  color: var(--ink-soft);
  display: block;
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.18em;
  margin-top: 4px;
}
.site-nav { display: flex; gap: 32px; }
.site-nav a,
.header-contact,
.menu-button {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.site-nav a { position: relative; }
.site-nav a::after {
  background: var(--signal);
  bottom: -8px;
  content: "";
  height: 2px;
  left: 0;
  position: absolute;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
  width: 100%;
}
.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-nav a[aria-current="page"]::after { transform: scaleX(1); }
.header-contact { justify-self: end; }
.menu-button {
  background: transparent;
  border: 0;
  cursor: pointer;
  display: none;
  justify-self: end;
  padding: 10px 0;
}

.hero {
  background-color: var(--ink);
  background-image:
    linear-gradient(rgba(185, 211, 198, 0.075) 1px, transparent 1px),
    linear-gradient(90deg, rgba(185, 211, 198, 0.075) 1px, transparent 1px);
  background-size: 42px 42px;
  color: var(--paper);
  display: grid;
  gap: clamp(50px, 9vw, 130px);
  grid-template-columns: minmax(0, 1.5fr) minmax(330px, 0.75fr);
  min-height: calc(100vh - 86px);
  overflow: hidden;
  padding: clamp(76px, 10vh, 128px) max(28px, calc((100vw - var(--max)) / 2));
  position: relative;
}
.hero-copy { align-self: center; max-width: 810px; }
.eyebrow {
  align-items: center;
  color: var(--mint);
  display: flex;
  font-size: 11px;
  font-weight: 700;
  gap: 8px;
  letter-spacing: 0.18em;
  margin: 0 0 34px;
  text-transform: uppercase;
}
.eyebrow::before {
  background: currentColor;
  border-radius: 50%;
  content: "";
  height: 7px;
  width: 7px;
}
.hero h1 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(46px, 5.25vw, 78px);
  font-weight: 400;
  letter-spacing: -0.052em;
  line-height: 0.98;
  margin: 0;
}
.hero h1 em { color: var(--signal); font-weight: 400; }
.hero-intro {
  color: rgba(244, 240, 231, 0.72);
  font-size: clamp(16px, 1.45vw, 20px);
  line-height: 1.65;
  margin: 35px 0 0;
  max-width: 640px;
}
.hero-actions { align-items: center; display: flex; flex-wrap: wrap; gap: 30px; margin-top: 44px; }
.button {
  align-items: center;
  display: inline-flex;
  font-size: 11px;
  font-weight: 700;
  gap: 18px;
  justify-content: center;
  letter-spacing: 0.1em;
  min-height: 54px;
  padding: 0 23px;
  text-transform: uppercase;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}
.button:hover,
.button:focus-visible { transform: translateY(-2px); }
.button-primary { background: var(--signal); color: var(--ink); }
.button-primary:hover,
.button-primary:focus-visible { background: #e5ba5e; }
.text-link {
  border-bottom: 1px solid rgba(244, 240, 231, 0.36);
  font-size: 12px;
  padding: 8px 0;
}
.hero-system {
  align-self: center;
  border-left: 1px solid rgba(185, 211, 198, 0.25);
  padding-left: clamp(30px, 4vw, 62px);
}
.system-logo { height: 220px; margin: 0 auto 54px; max-width: 100%; width: auto; }
.system-list p {
  align-items: baseline;
  border-top: 1px solid rgba(185, 211, 198, 0.22);
  display: flex;
  gap: 12px;
  justify-content: space-between;
  margin: 0;
  padding: 14px 0;
}
.system-list span {
  color: var(--mint);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.system-list strong {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 15px;
  font-weight: 400;
  text-align: right;
}

.section { padding: clamp(86px, 11vw, 150px) max(28px, calc((100vw - var(--max)) / 2)); }
.section-number {
  color: var(--signal-dark);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  margin: 0;
}
.section-heading { display: grid; gap: 36px; grid-template-columns: 80px minmax(0, 1fr); }
.section-heading h2,
.contact h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(40px, 5.2vw, 72px);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 1.05;
  margin: 0;
}
.section-heading.compact {
  align-items: end;
  grid-template-columns: 70px minmax(0, 1.4fr) minmax(260px, 0.65fr);
}
.section-heading.compact > p:last-child {
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
}

.about {
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 70px;
  grid-template-columns: 0.9fr 1.1fr;
}
.about .section-heading { display: block; }
.about .section-heading h2 { font-size: clamp(42px, 4.5vw, 68px); margin-top: 24px; }
.about-portrait {
  margin: 52px 18px 18px 0;
  max-width: 400px;
  width: 78%;
}
.about-portrait img {
  box-shadow: 18px 18px 0 var(--signal);
  display: block;
  height: auto;
  width: 100%;
}
.about-lead {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(25px, 2.5vw, 35px);
  line-height: 1.3;
  margin: 0 0 44px;
}
.about-columns { display: grid; gap: 34px; grid-template-columns: 1fr 1fr; }
.about-columns p { color: var(--ink-soft); font-size: 15px; line-height: 1.8; margin: 0; }
.positioning-quote {
  border-left: 3px solid var(--signal);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(20px, 2vw, 27px);
  line-height: 1.4;
  margin: 42px 0 0;
  padding-left: 25px;
}
.about-facts { border-top: 1px solid var(--line); margin-top: 48px; }
.about-facts p {
  border-bottom: 1px solid var(--line);
  display: grid;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 17px;
  gap: 15px;
  grid-template-columns: 115px 1fr;
  margin: 0;
  padding: 15px 0;
}
.about-facts span,
.card-label {
  color: var(--signal-dark);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.themes,
.articles { background: var(--white); }
.card-grid {
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 75px;
}
.theme-card,
.talk-card { min-height: 330px; padding: 30px 26px; }
.theme-card + .theme-card,
.talk-card + .talk-card { border-left: 1px solid var(--line); }
.theme-card:hover { background: var(--ink); color: var(--paper); }
.theme-card-top { align-items: center; display: flex; justify-content: space-between; }
.theme-card-top strong {
  border: 1px solid currentColor;
  border-radius: 50%;
  display: grid;
  font-size: 10px;
  height: 34px;
  place-items: center;
  width: 34px;
}
.theme-card h3,
.talk-card h3 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 27px;
  font-weight: 400;
  line-height: 1.12;
  margin: 88px 0 20px;
}
.theme-card p,
.talk-card p { color: var(--ink-soft); font-size: 13px; line-height: 1.7; margin: 0; }
.theme-card:hover p { color: rgba(244, 240, 231, 0.68); }

.speaking { background: var(--ink); color: var(--paper); }
.speaking .section-number { color: var(--signal); }
.speaking-intro {
  align-items: start;
  display: grid;
  gap: 50px;
  grid-template-columns: 0.52fr 1.35fr 0.72fr;
}
.speaking-kicker {
  color: var(--mint);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1.6;
  margin: 24px 0 0;
  text-transform: uppercase;
}
.speaking-intro h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(40px, 5vw, 70px);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 1.04;
  margin: 0;
}
.speaking-intro > p {
  color: rgba(244, 240, 231, 0.68);
  font-size: 14px;
  line-height: 1.75;
  margin: 4px 0 0;
}
.talk-grid {
  border-bottom: 1px solid rgba(244, 240, 231, 0.2);
  border-top: 1px solid rgba(244, 240, 231, 0.2);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 76px;
}
.talk-card + .talk-card { border-color: rgba(244, 240, 231, 0.2); }
.talk-card .card-label { color: var(--signal); }
.talk-card h3 { margin-top: 70px; }
.talk-card p { color: rgba(244, 240, 231, 0.62); }
.speaking-cta {
  align-items: center;
  display: flex;
  gap: 30px;
  justify-content: space-between;
  margin-top: 42px;
}
.speaking-cta p {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(20px, 2.2vw, 29px);
  margin: 0;
}

.project { background: var(--paper-deep); }
.project-label { align-items: center; display: flex; gap: 35px; }
.project-label span,
.contact-kicker {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.project-body { display: grid; gap: 80px; grid-template-columns: 1.2fr 0.8fr; margin-top: 58px; }
.project-title-wrap > p {
  color: var(--ink-soft);
  font-size: 13px;
  letter-spacing: 0.06em;
  margin: 0 0 10px;
  text-transform: uppercase;
}
.project h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(82px, 13vw, 175px);
  font-weight: 400;
  letter-spacing: -0.08em;
  line-height: 0.85;
  margin: 0;
}
.project-description { align-self: end; }
.project-description p { color: var(--ink-soft); font-size: 15px; line-height: 1.8; }
.underlined-link {
  border-bottom: 1px solid currentColor;
  display: inline-flex;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding-bottom: 7px;
  text-transform: uppercase;
}
.project-flow {
  align-items: center;
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
  display: flex;
  gap: 18px;
  justify-content: space-between;
  margin-top: 90px;
  padding: 20px 0;
}
.project-flow span { font-family: Georgia, "Times New Roman", serif; font-size: 16px; }
.project-flow i { background: var(--signal); height: 1px; max-width: 120px; width: 100%; }

.article-list { border-top: 1px solid var(--line); margin-top: 75px; }
.article-item {
  align-items: start;
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 35px;
  grid-template-columns: 60px minmax(0, 1fr) auto;
  padding: 35px 0;
  transition: padding 180ms ease;
}
.article-item:hover { padding-left: 12px; padding-right: 12px; }
.article-number,
.article-category {
  color: var(--signal-dark);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}
.article-category { margin: 0 0 10px; }
.article-item h3 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(24px, 2.6vw, 37px);
  font-weight: 400;
  letter-spacing: -0.02em;
  margin: 0;
}
.article-description { color: var(--ink-soft); font-size: 13px; line-height: 1.65; margin: 12px 0 0; max-width: 680px; }
.article-arrow { font-size: 24px; }
.all-articles { display: block; margin: 35px 0 0 auto; width: max-content; }

.contact {
  align-items: end;
  background: var(--blue);
  color: var(--white);
  display: grid;
  gap: 55px;
  grid-template-columns: 70px 1fr auto;
}
.contact .section-number { color: var(--white); opacity: 0.72; }
.contact-kicker { margin: 0 0 24px; }
.contact h2 { font-size: clamp(43px, 5.6vw, 78px); }
.contact h2 + p { line-height: 1.7; margin: 24px 0 0; max-width: 620px; opacity: 0.82; }
.button-light { border: 1px solid rgba(255, 255, 255, 0.65); color: var(--white); }
.button-light:hover,
.button-light:focus-visible { background: var(--white); color: var(--signal-dark); }

.site-footer {
  align-items: center;
  background: var(--ink);
  color: var(--paper);
  display: grid;
  gap: 40px;
  grid-template-columns: 1fr 1.5fr auto;
  padding: 42px max(28px, calc((100vw - var(--max)) / 2));
}
.footer-brand { align-items: center; display: flex; gap: 13px; }
.footer-brand p { font-size: 11px; line-height: 1.5; margin: 0; }
.footer-note { color: rgba(244, 240, 231, 0.55); font-size: 10px; line-height: 1.6; margin: 0; }
.footer-links { display: flex; flex-direction: column; gap: 9px; text-align: right; }
.footer-links a { font-size: 9px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
a:focus-visible,
button:focus-visible { outline: 3px solid var(--mint); outline-offset: 5px; }

/* Blog */
.blog-hero {
  background: var(--ink);
  color: var(--paper);
  padding: clamp(90px, 12vw, 155px) max(28px, calc((100vw - var(--max)) / 2));
}
.blog-hero h1 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(62px, 10vw, 145px);
  font-weight: 400;
  letter-spacing: -0.065em;
  line-height: 0.9;
  margin: 0;
}
.blog-hero h1 em { color: var(--signal); font-weight: 400; }
.blog-hero > p:last-child {
  color: rgba(244, 240, 231, 0.7);
  font-size: clamp(16px, 1.5vw, 20px);
  line-height: 1.7;
  margin: 42px 0 0;
  max-width: 760px;
}
.blog-categories {
  background: var(--paper-deep);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 0 max(28px, calc((100vw - var(--max)) / 2));
}
.blog-categories div {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  min-height: 78px;
  padding: 32px 18px;
  text-transform: uppercase;
}
.blog-categories div + div { border-left: 1px solid var(--line); }
.featured-article {
  align-items: start;
  display: grid;
  gap: clamp(35px, 6vw, 85px);
  grid-template-columns: 0.35fr 1.25fr 0.38fr;
  padding: clamp(90px, 11vw, 145px) max(28px, calc((100vw - var(--max)) / 2));
}
.featured-index span,
.featured-article aside span {
  color: var(--signal-dark);
  display: block;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}
.featured-index strong {
  display: block;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 72px;
  font-weight: 400;
  margin-top: 18px;
}
.featured-article h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(39px, 5.2vw, 72px);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 1.04;
  margin: 16px 0 0;
}
.featured-description { color: var(--ink-soft); font-size: 16px; line-height: 1.75; margin: 30px 0 35px; }
.featured-article aside { border-top: 1px solid var(--line); display: grid; gap: 8px; padding-top: 18px; }
.featured-article aside strong {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 17px;
  font-weight: 400;
  margin-bottom: 20px;
}
.upcoming-section { background: var(--white); }
.upcoming-grid {
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 70px;
}
.upcoming-grid article { min-height: 390px; padding: 28px; }
.upcoming-grid article + article { border-left: 1px solid var(--line); }
.upcoming-grid article > span {
  color: var(--signal-dark);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 40px;
}
.upcoming-grid .article-category { margin-top: 70px; }
.upcoming-grid h3 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 28px;
  font-weight: 400;
  line-height: 1.15;
  margin: 15px 0;
}
.upcoming-grid h3 + p { color: var(--ink-soft); font-size: 13px; line-height: 1.7; }
.upcoming-grid small { color: var(--signal-dark); font-size: 9px; font-weight: 700; letter-spacing: 0.13em; text-transform: uppercase; }
.blog-purpose {
  background: var(--blue);
  color: var(--white);
  display: grid;
  gap: 70px;
  grid-template-columns: 0.35fr 1.65fr;
}
.blog-purpose > p { font-size: 10px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; }
.blog-purpose blockquote {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(32px, 4.5vw, 61px);
  line-height: 1.12;
  margin: 0;
}

/* Artigo e páginas de texto */
.article-hero {
  background-color: var(--ink);
  background-image:
    linear-gradient(rgba(185, 211, 198, 0.065) 1px, transparent 1px),
    linear-gradient(90deg, rgba(185, 211, 198, 0.065) 1px, transparent 1px);
  background-size: 42px 42px;
  color: var(--paper);
  padding: clamp(80px, 10vw, 130px) max(28px, calc((100vw - 980px) / 2));
}
.article-meta { display: flex; flex-wrap: wrap; gap: 10px; }
.article-meta span {
  border: 1px solid rgba(244, 240, 231, 0.28);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
  padding: 8px 10px;
  text-transform: uppercase;
}
.article-hero h1 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(44px, 6.4vw, 82px);
  font-weight: 400;
  letter-spacing: -0.05em;
  line-height: 1;
  margin: 42px 0 0;
}
.article-hero > p {
  color: rgba(244, 240, 231, 0.74);
  font-size: clamp(17px, 1.65vw, 21px);
  line-height: 1.7;
  margin: 35px 0 0;
}
.article-byline { align-items: center; display: flex; gap: 13px; margin-top: 45px; }
.article-author-mark { height: 44px; width: auto; }
.article-byline p { font-size: 11px; line-height: 1.55; margin: 0; }
.article-layout {
  align-items: start;
  display: grid;
  gap: clamp(45px, 8vw, 110px);
  grid-template-columns: 250px minmax(0, 720px);
  justify-content: center;
  padding: clamp(75px, 9vw, 120px) 28px;
}
.article-summary { border-top: 3px solid var(--signal); position: sticky; top: 115px; }
.article-summary > p { font-family: Georgia, "Times New Roman", serif; font-size: 22px; }
.article-summary ul { list-style: none; margin: 0; padding: 0; }
.article-summary li {
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.55;
  padding: 13px 0;
}
.article-summary li::before { color: var(--signal-dark); content: "✓"; margin-right: 8px; }
.article-content { color: #16344b; font-family: Georgia, "Times New Roman", serif; }
.article-content p { font-size: 18px; line-height: 1.88; margin: 0 0 27px; }
.article-content .article-lead { color: var(--ink); font-size: clamp(23px, 2.45vw, 31px); line-height: 1.5; margin-bottom: 58px; }
.article-content h2 {
  color: var(--ink);
  font-size: clamp(31px, 3.6vw, 46px);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1.12;
  margin: 68px 0 24px;
}
.article-content blockquote {
  border-left: 4px solid var(--signal);
  color: var(--ink);
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.4;
  margin: 58px 0;
  padding-left: 30px;
}
.article-closing { background: var(--paper-deep); margin-top: 70px; padding: 34px; }
.article-closing p { color: var(--ink); font-size: 24px; line-height: 1.35; }
.text-page {
  background: var(--white);
  margin: 0 auto;
  max-width: 900px;
  padding: clamp(70px, 9vw, 120px) 28px;
}
.text-page h1 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(45px, 7vw, 78px);
  font-weight: 400;
  letter-spacing: -0.05em;
  margin: 0 0 40px;
}
.text-page h2 { font-family: Georgia, "Times New Roman", serif; font-size: 30px; font-weight: 400; margin-top: 50px; }
.text-page p,
.text-page li { color: var(--ink-soft); font-size: 16px; line-height: 1.8; }

@media (max-width: 1000px) {
  .site-header { grid-template-columns: 1fr auto; }
  .site-nav {
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    display: none;
    flex-direction: column;
    gap: 0;
    left: 0;
    padding: 18px 28px;
    position: absolute;
    right: 0;
    top: 85px;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { border-top: 1px solid var(--line); padding: 17px 0; }
  .site-nav a:first-child { border-top: 0; }
  .site-nav a::after { display: none; }
  .menu-button { display: block; }
  .header-contact { display: none; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-system { display: grid; gap: 35px; grid-template-columns: 0.5fr 1fr; }
  .system-logo { height: 190px; margin: 0 auto; }
  .about,
  .project-body { grid-template-columns: 1fr; }
  .section-heading.compact { align-items: start; grid-template-columns: 55px 1fr; }
  .section-heading.compact > p:last-child { grid-column: 2; }
  .card-grid,
  .talk-grid { grid-template-columns: 1fr 1fr; }
  .theme-card:nth-child(3),
  .talk-card:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .talk-card:nth-child(3) { border-color: rgba(244, 240, 231, 0.2); }
  .theme-card:nth-child(4),
  .talk-card:nth-child(4) { border-top: 1px solid var(--line); }
  .talk-card:nth-child(4) { border-color: rgba(244, 240, 231, 0.2); }
  .speaking-intro { grid-template-columns: 0.55fr 1.45fr; }
  .speaking-intro > p { grid-column: 2; }
  .contact { align-items: start; grid-template-columns: 55px 1fr; }
  .contact .button { grid-column: 2; justify-self: start; }
  .blog-categories { grid-template-columns: 1fr 1fr; }
  .featured-article { grid-template-columns: 0.25fr 1.2fr; }
  .featured-article aside { grid-column: 2; }
  .article-layout { grid-template-columns: 210px minmax(0, 680px); }
}

@media (max-width: 680px) {
  .site-header { min-height: 74px; }
  .site-nav { top: 73px; }
  .brand-name { display: none; }
  .hero { min-height: calc(100svh - 74px); padding-top: 70px; }
  .hero h1 { font-size: clamp(44px, 13vw, 64px); }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .hero-system { border-left: 0; border-top: 1px solid rgba(185, 211, 198, 0.25); display: block; padding-left: 0; padding-top: 35px; }
  .system-logo { height: 180px; margin-bottom: 42px; }
  .about-columns,
  .section-heading,
  .section-heading.compact,
  .speaking-intro,
  .contact { display: block; }
  .section-heading h2,
  .about .section-heading h2 { margin-top: 22px; }
  .about-content { margin-top: 50px; }
  .about-portrait { width: calc(100% - 18px); }
  .about-columns p + p { margin-top: 25px; }
  .about-facts p { grid-template-columns: 1fr; }
  .section-heading.compact > p:last-child { margin-top: 26px; }
  .card-grid,
  .talk-grid { display: block; margin-top: 55px; }
  .theme-card,
  .talk-card { border-left: 0 !important; border-top: 1px solid var(--line); min-height: 280px; }
  .theme-card:first-child,
  .talk-card:first-child { border-top: 0; }
  .talk-card { border-color: rgba(244, 240, 231, 0.2); }
  .speaking-intro h2 { margin-top: 38px; }
  .speaking-intro > p { margin-top: 28px; }
  .speaking-cta { align-items: stretch; flex-direction: column; }
  .project-body { gap: 45px; }
  .project h2 { font-size: 22vw; }
  .project-flow { align-items: flex-start; flex-direction: column; gap: 10px; }
  .project-flow i { height: 18px; max-width: 1px; }
  .article-item { gap: 18px; grid-template-columns: 30px 1fr; }
  .article-arrow { display: none; }
  .contact > div { margin: 28px 0 40px; }
  .contact .button { justify-content: space-between; width: 100%; }
  .site-footer { align-items: start; grid-template-columns: 1fr; }
  .footer-links { text-align: left; }
  .blog-hero h1 { font-size: clamp(40px, 12.5vw, 72px); }
  .blog-categories { display: block; }
  .blog-categories div { border-left: 0 !important; border-top: 1px solid var(--line); padding-left: 0; }
  .blog-categories div:first-child { border-top: 0; }
  .featured-article { display: block; }
  .featured-index { align-items: baseline; display: flex; justify-content: space-between; margin-bottom: 45px; }
  .featured-index strong { font-size: 52px; margin: 0; }
  .featured-article aside { display: none; }
  .upcoming-grid { display: block; }
  .upcoming-grid article { border-left: 0 !important; border-top: 1px solid var(--line); min-height: 330px; padding-left: 0; padding-right: 0; }
  .upcoming-grid article:first-child { border-top: 0; }
  .blog-purpose { display: block; }
  .blog-purpose blockquote { margin-top: 35px; }
  .article-layout { display: block; }
  .article-summary { margin-bottom: 60px; position: static; }
  .article-content p { font-size: 17px; }
  .article-content blockquote { padding-left: 22px; }
}

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