:root {
  --ink: #111827;
  --body: #263241;
  --muted: #6b7280;
  --paper: #ffffff;
  --page: #f4f5f7;
  --line: #d9dee8;
  --brand: #0b2f5b;
  --brand-2: #b91c1c;
  --blue: #0a66c2;
  --soft-blue: #eef6ff;
  --gold: #fff7d6;
  --green: #0f9f58;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--body);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.62;
}

a {
  color: var(--blue);
  font-weight: 700;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
}

.top-strip {
  background: var(--ink);
  color: #e5e7eb;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
  letter-spacing: 0.02em;
}

.top-strip__inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 7px;
  padding-bottom: 7px;
}

.masthead {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  background: var(--paper);
  padding-top: 22px;
  padding-bottom: 18px;
}

.logo {
  color: var(--brand);
  font-family: Arial, Helvetica, sans-serif;
  font-size: clamp(34px, 5vw, 54px);
  font-weight: 900;
  letter-spacing: -2px;
  line-height: 0.95;
  text-decoration: none;
}

.logo span {
  color: var(--brand-2);
}

.date {
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

.nav {
  border-top: 1px solid var(--line);
  border-bottom: 2px solid var(--ink);
  background: var(--paper);
  font-family: Arial, Helvetica, sans-serif;
}

.nav__inner {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  white-space: nowrap;
}

.nav a {
  color: var(--ink);
  display: block;
  font-size: 13px;
  font-weight: 800;
  padding: 11px 0;
  text-decoration: none;
  text-transform: uppercase;
}

.page {
  align-items: start;
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 760px) 320px;
  padding-top: 28px;
  padding-bottom: 48px;
}

.article {
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: 0 12px 35px rgb(17 24 39 / 8%);
  padding: 34px 44px 42px;
}

.breadcrumb {
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
  margin-bottom: 16px;
}

.label {
  border-left: 4px solid var(--brand-2);
  color: var(--brand-2);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
  padding-left: 10px;
  text-transform: uppercase;
}

h1 {
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: clamp(40px, 5vw, 62px);
  font-weight: 900;
  letter-spacing: -2.2px;
  line-height: 0.98;
  margin: 0 0 18px;
}

.dek {
  border-bottom: 1px solid var(--line);
  color: #374151;
  font-size: 22px;
  line-height: 1.42;
  margin-bottom: 18px;
  padding-bottom: 22px;
}

.byline {
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 13px;
  gap: 8px 14px;
  margin-bottom: 20px;
}

.byline span:not(:last-child)::after {
  color: #c0c7d2;
  content: "•";
  margin-left: 14px;
}

.editor-note {
  background: var(--gold);
  border: 1px solid #eadc93;
  color: #4b3a06;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
  line-height: 1.55;
  margin: 22px 0 26px;
  padding: 14px 16px;
}

.article-hero-image {
  margin: 0 0 28px;
}

.article-hero-image img {
  display: block;
  height: auto;
  width: 100%;
}

.repair-quote-media {
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
  margin: 4px 0 28px;
  padding: 10px;
}

.repair-quote-media img {
  display: block;
  height: auto;
  width: 100%;
}

.john-helper-media {
  background: #fff;
  border: 1px solid var(--line);
  margin: 4px 0 28px;
  padding: 10px;
}

.john-helper-media img {
  display: block;
  height: auto;
  width: 100%;
}

.thermal-proof-media {
  background: #0f172a;
  border: 1px solid #1e293b;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.14);
  margin: 4px 0 28px;
  padding: 10px;
}

.thermal-proof-media img {
  display: block;
  height: auto;
  width: 100%;
}

p {
  font-size: 19px;
  margin: 0 0 20px;
}

q {
  quotes: "“" "”" "‘" "’";
}

h2 {
  border-top: 1px solid var(--line);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 34px;
  font-weight: 900;
  letter-spacing: -0.8px;
  line-height: 1.12;
  margin: 34px 0 16px;
  padding-top: 26px;
}

.dash-list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
}

.dash-list li {
  font-size: 19px;
  margin-bottom: 15px;
  padding-left: 28px;
  position: relative;
}

.dash-list li::before {
  content: "—";
  font-weight: 900;
  left: 0;
  position: absolute;
}

.how-it-works-media {
  background: #f3f6fb;
  border: 1px solid var(--line);
  margin: 10px 0 24px;
  padding: 10px;
}

.how-it-works-media img {
  display: block;
  height: auto;
  width: 100%;
}

.review {
  background: var(--soft-blue);
  border-left: 4px solid var(--blue);
  color: #1f2937;
  display: flex;
  gap: 14px;
  font-size: 17px;
  line-height: 1.56;
  margin: 16px 0;
  padding: 16px 18px;
}

.review--reply {
  margin-left: 42px;
}

.review-avatar {
  border: 2px solid #fff;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.12);
  flex: 0 0 48px;
  height: 48px;
  object-fit: cover;
  width: 48px;
}

.review-body {
  flex: 1;
  min-width: 0;
}

.review-meta {
  font-family: Arial, Helvetica, sans-serif;
  margin-bottom: 4px;
}

.review-meta time {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.review p {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 17px;
  line-height: 1.56;
  margin: 0;
}

.cta-box {
  align-items: center;
  background: #f0fdf4;
  border: 1px solid #bce8ca;
  display: grid;
  gap: 22px;
  grid-template-columns: 180px 1fr;
  margin: 30px 0 24px;
  padding: 24px;
  text-align: center;
}

.cta-product {
  align-items: center;
  background: #fff;
  border: 1px solid #d8f1df;
  border-radius: 10px;
  display: flex;
  justify-content: center;
  min-height: 190px;
  padding: 14px;
}

.cta-product img {
  display: block;
  height: auto;
  max-width: 150px;
  width: 100%;
}

.cta-content {
  min-width: 0;
}

.cta-product-name {
  color: #111827;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.4px;
  margin-bottom: 6px;
}

.cta-price {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 22px;
  font-weight: 900;
  margin-bottom: 16px;
}

.cta-price-old {
  color: #6b7280;
  margin-right: 8px;
  text-decoration: line-through;
}

.cta-price-new {
  color: var(--green);
}

.cta {
  background: var(--green);
  border-radius: 4px;
  box-shadow: 0 4px 0 #08733e;
  color: #fff;
  display: inline-block;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 20px;
  font-weight: 900;
  line-height: 1.2;
  padding: 17px 24px;
  text-decoration: none;
}

.cta-box p {
  color: #44614f;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
  margin: 16px 0 0;
}

.disclosure {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
  line-height: 1.55;
  margin-top: 26px;
  padding-top: 16px;
}

.sidebar {
  position: sticky;
  top: 16px;
}

.sidebar-card {
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: 0 10px 28px rgb(17 24 39 / 7%);
  margin-bottom: 18px;
  padding: 20px;
}

.sidebar-label {
  color: var(--brand-2);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sidebar h3 {
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 22px;
  letter-spacing: -0.4px;
  line-height: 1.16;
  margin: 10px 0;
}

.sidebar p {
  color: #4b5563;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 15px;
  line-height: 1.55;
  margin: 0;
}

@media (max-width: 980px) {
  .page {
    grid-template-columns: 1fr;
  }

  .sidebar {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    position: static;
  }

  .sidebar-card {
    margin-bottom: 0;
  }
}

@media (max-width: 640px) {
  .container {
    padding-left: 14px;
    padding-right: 14px;
  }

  .top-strip__inner,
  .masthead {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav__inner {
    gap: 18px;
  }

  .page {
    padding-top: 14px;
  }

  .article {
    padding: 22px 18px 28px;
  }

  h1 {
    font-size: 36px;
    letter-spacing: -1.4px;
  }

  .dek {
    font-size: 19px;
  }

  p,
  .dash-list li {
    font-size: 17px;
  }

  .review {
    gap: 10px;
    padding: 14px;
  }

  .review--reply {
    margin-left: 16px;
  }

  .review-avatar {
    flex-basis: 42px;
    height: 42px;
    width: 42px;
  }

  h2 {
    font-size: 27px;
  }

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

  .cta {
    display: block;
    font-size: 17px;
  }

  .cta-box {
    grid-template-columns: 1fr;
    padding: 20px;
  }

  .cta-product {
    min-height: 160px;
  }

  .cta-product img {
    max-width: 130px;
  }
}