:root {
  --blue: #2962ff;
  --green: #22c55e;
  --ink: #444444;
  --heading: #1a1a1a;
  --muted: #666666;
  --line: #f3f4f6;
  --paper: #ffffff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: inherit; }
button { font: inherit; }

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 56px;
  padding: 0 max(16px, calc((100vw - 1152px) / 2));
  color: #ffffff;
  background: var(--blue);
}
.brand {
  font-family: "Plus Jakarta Sans", sans-serif;
  font-size: 24px;
  font-weight: 100;
  letter-spacing: .3em;
  text-transform: uppercase;
  text-decoration: none;
}
/* Header e SHARE sao casca visual da controle: aparencia identica, sem interacao. */
.menu-button,
.search-button {
  border: 0;
  color: #ffffff;
  background: transparent;
  cursor: default;
  user-select: none;
}
.menu-button { width: 24px; padding: 0; }
.menu-button span { display: block; width: 24px; height: 1px; margin: 5px 0; background: #ffffff; }
.search-button {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 6px;
  background: rgba(0, 0, 0, .1);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

/* ---------- article shell ---------- */

.article {
  width: 100%;
  max-width: 768px;
  margin: 0 auto;
  padding: 40px 16px 80px;
}
.eyebrow-row { margin-bottom: 24px; }
.eyebrow {
  color: var(--blue);
  font-family: "Plus Jakarta Sans", sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -.025em;
  line-height: 20px;
  text-transform: uppercase;
}
h1,
h2,
h4 { font-family: "Plus Jakarta Sans", sans-serif; }
h1 {
  margin: 0 0 24px;
  color: var(--heading);
  font-size: 42px;
  font-weight: 900;
  letter-spacing: -.025em;
  line-height: 1.1;
}
.dek {
  margin: 0 0 32px;
  color: var(--muted);
  font-size: 20px;
  font-weight: 300;
  line-height: 1.625;
}

.byline-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 0 0 40px;
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
}
.byline-author { display: flex; align-items: center; gap: 8px; }
.byline-avatar {
  overflow: hidden;
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #e5e7eb;
}
.byline-avatar img { width: 100%; height: 100%; object-fit: cover; }
.byline-author > div { color: var(--muted); font-size: 12px; line-height: 16px; }
.byline-author p { margin: 0; }
.byline-author strong { color: var(--muted); font-weight: 700; }
.share-row { display: flex; align-items: center; gap: 8px; }
.share-row .share-button {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid #d1d5db;
  border-radius: 999px;
  color: var(--heading);
  background: #ffffff;
  font-size: 12px;
  font-weight: 700;
  cursor: default;
  user-select: none;
}

.lead-photo {
  display: block;
  width: 100%;
  height: auto;
  margin: 0 0 40px;
  border-radius: 2px;
}

/* ---------- body ---------- */

.article-body { color: var(--ink); }
.article-body p,
.article-body li {
  font-size: 18px;
  line-height: 1.625;
}
.article-body p { margin: 0 0 24px; }
.article-body strong { font-weight: 700; }
.article-body ul { margin: 0 0 24px; padding-left: 24px; list-style: disc; }
.article-body li { margin-bottom: 8px; }
.article-body li:last-child { margin-bottom: 0; }
.method-list li strong { display: inline; }

.lede {
  margin: 0 0 16px !important;
  color: var(--heading);
  font-family: "Plus Jakarta Sans", sans-serif;
  font-weight: 800;
}

/* Respiro entre seções: o Ian pediu mais ar antes de cada H2 (13/08).
   A referência BR usa 40px; aqui vai 76px no desktop e 60px no mobile.
   O espaço ABAIXO do título fica em 16px de propósito, para o H2 continuar
   colado no texto que ele abre. */
.article-body h2 {
  margin: 76px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  color: #333333;
  font-size: 30px;
  font-weight: 800;
  line-height: 1.2;
}

.callout {
  margin: 32px 0 !important;
  padding: 24px;
  border-left: 4px solid var(--blue);
  color: var(--ink);
  background: #f9fafb;
  font-style: italic;
}
.quote-box {
  margin: 40px 0;
  padding: 24px;
  border-left: 4px solid var(--blue);
  color: #333333;
  background: #f8f9fa;
  font-size: 18px;
  font-style: italic;
  line-height: 1.625;
}

.cta-row { margin: 40px 0; }
.text-cta {
  color: var(--blue);
  font-size: 20px;
  font-weight: 700;
  text-decoration: none;
}
.text-cta:hover { text-decoration: underline; }

.signoff { margin: 40px 0; color: #4b5563; }
.signoff-name { padding-top: 8px; }
.signoff-name p { margin: 0 0 8px; }
.signoff-name strong { color: var(--heading); font-weight: 700; }
.signoff-name span { color: #6b7280; font-weight: 400; }
.signoff-line { color: var(--blue) !important; font-size: 14px !important; font-weight: 600; }

.offer-box {
  margin: 48px 0;
  padding: 32px;
  border-radius: 8px;
  text-align: center;
  background: #f2f2f2;
}
.offer-title {
  margin: 0 0 16px !important;
  color: var(--blue);
  font-family: "Plus Jakarta Sans", sans-serif;
  font-size: 24px !important;
  font-weight: 800;
  line-height: 1.2;
}
.offer-sub { margin: 0 0 32px !important; color: #374151; font-weight: 700; }

.button {
  display: inline-block;
  padding: 16px 32px;
  border-radius: 4px;
  color: #ffffff;
  background: var(--green);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -4px rgba(0, 0, 0, .1);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -.05em;
  text-decoration: none;
  text-transform: uppercase;
}
.button:hover { background: #16a34a; }

.testimonials {
  margin-top: 80px;
  padding-top: 40px;
  border-top: 1px solid var(--line);
}
.testimonials h4 {
  margin: 0 0 48px;
  color: #9ca3af;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .3em;
  text-align: center;
  text-transform: uppercase;
}
.testimonial-list { display: grid; gap: 64px; }
.testimonial-list p { margin: 0; color: #374151; font-size: 18px; line-height: 1.625; }
.testimonial-list .cite {
  margin-top: 4px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .025em;
  text-transform: uppercase;
}
.testimonials-cta { margin-top: 80px; text-align: center; }
.testimonials-cta .button { padding: 20px 32px; box-shadow: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 8px 10px -6px rgba(0, 0, 0, .1); }
.testimonials-cta p {
  max-width: 512px;
  margin: 24px auto 0 !important;
  color: #6b7280;
  font-size: 14px !important;
  line-height: 1.5;
}

/* ---------- footer ---------- */

footer {
  padding: 48px max(16px, calc((100vw - 1152px) / 2));
  color: #6b7280;
  background: #f9f9f9;
  font-size: 10px;
}
footer > div { display: flex; flex-direction: column; gap: 4px; color: var(--blue); }
footer nav { display: flex; gap: 48px; justify-content: flex-end; margin: -24px 0 32px; }
footer nav span { font-weight: 700; cursor: default; user-select: none; }
footer p { max-width: 896px; margin: 0 0 8px; line-height: 1.5; }

/* ---------- mobile ---------- */

@media (max-width: 767px) {
  .site-header { padding: 0 16px; }
  .brand { font-size: 20px; }
  .search-button { display: none; }
  h1 { font-size: 30px; }
  .dek { font-size: 18px; }
}

@media (max-width: 639px) {
  .byline-row { align-items: flex-start; }
  .share-row { display: none; }
  .article-body h2 { margin-top: 60px; font-size: 24px; }
  .text-cta { font-size: 18px; }
  .offer-title { font-size: 22px !important; }
  .button { display: block; width: 100%; padding: 16px 20px; font-size: 18px; text-align: center; }
  footer nav { justify-content: flex-start; flex-wrap: wrap; gap: 24px; margin: 32px 0; }
}