/* ============================================================
   contentsthatrank.com — HVAC GBP Blueprint
   Palette: Navy #0f2d52 | Orange #e8640c | Light #f4f7fb | White #fff
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy:   #0f2d52;
  --navy-dark: #091e38;
  --orange: #e8640c;
  --orange-hover: #c9530a;
  --light:  #f4f7fb;
  --mid:    #dde4ee;
  --text:   #1a1a2e;
  --muted:  #5a6a82;
  --white:  #ffffff;
  --radius: 6px;
  --shadow: 0 2px 12px rgba(15,45,82,.10);
  --max:    1140px;
}

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
  font-size: 17px;
}

a { color: var(--orange); text-decoration: none; }
a:hover { color: var(--orange-hover); text-decoration: underline; }

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

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ---- NAV ---- */
nav {
  background: var(--navy);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,.25);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -.3px;
}
.nav-logo img { height: 36px; width: 36px; border-radius: 4px; }
.nav-links { display: flex; gap: 28px; list-style: none; }
.nav-links a { color: rgba(255,255,255,.85); font-size: .95rem; font-weight: 500; }
.nav-links a:hover { color: var(--white); text-decoration: none; }
.nav-cta {
  background: var(--orange);
  color: var(--white) !important;
  padding: 8px 18px;
  border-radius: var(--radius);
  font-weight: 600;
}
.nav-cta:hover { background: var(--orange-hover); }

/* ---- HERO ---- */
.hero {
  background: linear-gradient(110deg, var(--navy-dark) 55%, #1a4a7a 100%);
  color: var(--white);
  padding: 80px 0 72px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  right: -80px; top: -80px;
  width: 520px; height: 520px;
  background: radial-gradient(circle, rgba(232,100,12,.18) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.hero-eyebrow { color: var(--orange); font-size: .85rem; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 14px; }
.hero h1 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; line-height: 1.15; margin-bottom: 20px; }
.hero h1 span { color: var(--orange); }
.hero p { font-size: 1.1rem; color: rgba(255,255,255,.80); margin-bottom: 32px; max-width: 480px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-primary {
  background: var(--orange);
  color: var(--white);
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 1rem;
  display: inline-block;
  transition: background .2s;
}
.btn-primary:hover { background: var(--orange-hover); text-decoration: none; color: var(--white); }
.btn-outline {
  border: 2px solid rgba(255,255,255,.45);
  color: var(--white);
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  display: inline-block;
  transition: border-color .2s;
}
.btn-outline:hover { border-color: var(--white); text-decoration: none; color: var(--white); }
.hero-stats { display: flex; gap: 32px; margin-top: 36px; }
.stat-num { font-size: 2rem; font-weight: 800; color: var(--orange); }
.stat-label { font-size: .8rem; color: rgba(255,255,255,.65); text-transform: uppercase; letter-spacing: .5px; }
.hero-img { border-radius: 10px; box-shadow: 0 20px 60px rgba(0,0,0,.35); }

/* ---- ARTICLE HERO (blog posts, long-form guides) ---- */
.hero.hero--navy {
  padding: 48px 0 52px;
  text-align: left;
}
.hero.hero--navy h1 {
  color: var(--white);
  margin-bottom: 14px;
  font-size: clamp(1.65rem, 3.2vw, 2.35rem);
  font-weight: 800;
  line-height: 1.2;
  max-width: 900px;
}
.hero.hero--navy .guide-label {
  color: var(--orange);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.hero.hero--navy .hero-subtitle {
  color: rgba(255,255,255,.78);
  font-size: 1.05rem;
  max-width: 640px;
  margin-bottom: 0;
  line-height: 1.55;
}

/* ---- BLOG LISTING HEADER (/blog/index) ---- */
.blog-page-header {
  background: var(--navy);
  padding: 48px 0 40px;
}
.blog-page-header-eyebrow {
  color: var(--orange);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.blog-page-header h1 {
  color: var(--white);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  margin-bottom: 14px;
  line-height: 1.2;
}
.blog-page-header-deck {
  color: rgba(255,255,255,.75);
  max-width: 620px;
  font-size: 1.05rem;
  line-height: 1.55;
}

.blog-listing-body {
  padding-top: 56px;
  padding-bottom: 80px;
}
.blog-listing-cross {
  margin-top: 56px;
  padding: 36px;
  background: var(--light);
  border-radius: 12px;
  text-align: center;
}

/* ---- HOME: COURSE TEASER ---- */
.course-teaser {
  background: var(--light);
  padding: 44px 0;
  border-top: 1px solid var(--mid);
  border-bottom: 1px solid var(--mid);
}
.course-teaser-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
}
.course-teaser h2 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 10px;
  line-height: 1.25;
}
.course-teaser .section-label {
  text-align: left;
  margin-bottom: 8px;
}
.course-teaser p {
  color: var(--muted);
  font-size: .98rem;
  max-width: 560px;
  margin: 0;
}
.course-teaser-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-start;
}
.btn-outline-navy {
  border: 2px solid var(--navy);
  color: var(--navy);
  padding: 12px 22px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .95rem;
  display: inline-block;
  transition: background .2s, color .2s;
}
.btn-outline-navy:hover {
  background: var(--navy);
  color: var(--white);
  text-decoration: none;
}
@media (max-width: 720px) {
  .course-teaser-inner { grid-template-columns: 1fr; }
  .course-teaser-actions { justify-content: flex-start; }
}

/* ---- IN-ARTICLE TOOL CALLOUT (matches site orange accent) ---- */
.article-body .article-tool-cta {
  background: var(--light);
  border-left: 4px solid var(--orange);
  padding: 24px 28px;
  border-radius: 8px;
  margin: 40px 0;
}
.article-body .article-tool-cta h4 {
  color: var(--navy);
  margin-bottom: 8px;
  font-size: 1.02rem;
  font-weight: 700;
}
.article-body .article-tool-cta p {
  color: var(--muted);
  margin-bottom: 16px;
  font-size: .95rem;
}
.article-body .article-tool-cta .btn-primary {
  font-size: .9rem;
  padding: 10px 20px;
}

/* ---- BOT-MAINTAINED INTERNAL RELATED BLOCK ---- */
.related-internal {
  margin-top: 48px;
  padding-top: 36px;
  border-top: 1px solid var(--mid);
}
.related-internal-title {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 12px;
}
.related-internal ul {
  list-style: none;
  margin: 0 0 24px 0;
  padding: 0;
}
.related-internal li {
  margin-bottom: 10px;
  font-size: .95rem;
  line-height: 1.4;
}
.related-internal a {
  font-weight: 600;
  color: var(--navy);
}
.related-internal a:hover {
  color: var(--orange);
}
.related-internal-meta {
  display: block;
  font-size: .82rem;
  font-weight: 400;
  color: var(--muted);
  margin-top: 2px;
}
.related-internal-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin-bottom: 28px;
}

/* ---- 3-STEP FRAMEWORK ---- */
.framework { background: var(--light); padding: 72px 0; }
.section-label { text-align: center; color: var(--orange); font-size: .8rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 10px; }
.section-title { text-align: center; font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; color: var(--navy); margin-bottom: 8px; }
.section-sub { text-align: center; color: var(--muted); max-width: 560px; margin: 0 auto 48px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.step {
  background: var(--white);
  border-radius: 10px;
  padding: 36px 28px;
  box-shadow: var(--shadow);
  text-align: center;
  border-top: 4px solid transparent;
  transition: border-color .2s, transform .2s;
}
.step:hover { border-top-color: var(--orange); transform: translateY(-4px); }
.step-num { width: 48px; height: 48px; background: var(--orange); color: var(--white); border-radius: 50%; font-size: 1.3rem; font-weight: 800; display: flex; align-items: center; justify-content: center; margin: 0 auto 18px; }
.step h3 { font-size: 1.15rem; font-weight: 700; color: var(--navy); margin-bottom: 10px; }
.step p { color: var(--muted); font-size: .95rem; }

/* ---- TOOLS GRID ---- */
.tools-section { padding: 72px 0; }
.tools-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.tool-card {
  background: var(--white);
  border: 1px solid var(--mid);
  border-radius: 10px;
  padding: 28px 24px;
  box-shadow: var(--shadow);
  transition: box-shadow .2s, transform .2s;
}
.tool-card:hover { box-shadow: 0 8px 28px rgba(15,45,82,.15); transform: translateY(-3px); }
.tool-tag { font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--orange); margin-bottom: 10px; }
.tool-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--navy); margin-bottom: 8px; }
.tool-card p { color: var(--muted); font-size: .9rem; margin-bottom: 16px; }
.tool-link { font-size: .9rem; font-weight: 600; color: var(--orange); }

/* ---- BLOG GRID ---- */
.blog-section { padding: 72px 0; background: var(--light); }
.blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 28px; }
.post-card {
  background: var(--white);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .2s, box-shadow .2s;
}
.post-card:hover { transform: translateY(-4px); box-shadow: 0 10px 32px rgba(15,45,82,.15); }
.post-phase { background: var(--navy); color: rgba(255,255,255,.7); font-size: .72rem; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; padding: 8px 16px; }
.post-body { padding: 22px 22px 26px; }
.post-week { color: var(--orange); font-size: .8rem; font-weight: 700; margin-bottom: 6px; }
.post-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--navy); margin-bottom: 8px; line-height: 1.35; }
.post-card p { color: var(--muted); font-size: .88rem; margin-bottom: 14px; }
.post-card a.read-more { font-size: .88rem; font-weight: 600; color: var(--orange); }

/* ---- EMAIL CAPTURE ---- */
.capture { background: var(--navy); padding: 72px 0; }
.capture-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.capture h2 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; color: var(--white); margin-bottom: 14px; }
.capture p { color: rgba(255,255,255,.75); }
.capture-form { display: flex; flex-direction: column; gap: 12px; }
.capture-form input {
  padding: 14px 16px;
  border-radius: var(--radius);
  border: none;
  font-size: .95rem;
  outline: none;
}
.capture-form input:focus { box-shadow: 0 0 0 3px rgba(232,100,12,.4); }
.capture-form button {
  background: var(--orange);
  color: var(--white);
  padding: 14px;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background .2s;
}
.capture-form button:hover { background: var(--orange-hover); }
.capture-small { font-size: .78rem; color: rgba(255,255,255,.45); margin-top: 4px; }

/* ---- COUNTY SECTION ---- */
.counties-section { padding: 72px 0; }
.county-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.county-card {
  background: var(--light);
  border: 1px solid var(--mid);
  border-radius: var(--radius);
  padding: 20px 18px;
  text-align: center;
  transition: background .2s, border-color .2s;
}
.county-card:hover { background: var(--navy); border-color: var(--navy); }
.county-card:hover h4, .county-card:hover p { color: var(--white); }
.county-card h4 { font-size: .95rem; font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.county-card p { font-size: .78rem; color: var(--muted); }

/* ---- ARTICLE PAGE ---- */
.article-layout { display: grid; grid-template-columns: 1fr 300px; gap: 48px; padding: 56px 0 80px; align-items: start; }
.article-body h1 { font-size: clamp(1.7rem, 3vw, 2.3rem); font-weight: 800; color: var(--navy); margin-bottom: 16px; line-height: 1.2; }
.article-meta { color: var(--muted); font-size: .85rem; margin-bottom: 32px; display: flex; gap: 16px; flex-wrap: wrap; }
.article-body h2 { font-size: 1.35rem; font-weight: 700; color: var(--navy); margin: 36px 0 12px; }
.article-body h3 { font-size: 1.1rem; font-weight: 700; color: var(--navy); margin: 24px 0 8px; }
.article-body p { margin-bottom: 18px; }
.article-body ul, .article-body ol { margin: 0 0 18px 24px; }
.article-body li { margin-bottom: 6px; }
.article-body .callout { background: var(--light); border-left: 4px solid var(--orange); padding: 18px 20px; border-radius: 0 var(--radius) var(--radius) 0; margin: 28px 0; }
.article-body .tool-cta { background: var(--navy); color: var(--white); padding: 24px 28px; border-radius: 10px; margin: 32px 0; }
.article-body .tool-cta h4 { color: var(--white); font-size: 1.05rem; margin-bottom: 8px; }
.article-body .tool-cta p { color: rgba(255,255,255,.75); font-size: .9rem; margin-bottom: 14px; }

/* ---- SIDEBAR ---- */
.sidebar { position: sticky; top: 80px; }
.sidebar-box { background: var(--light); border-radius: 10px; padding: 24px; margin-bottom: 24px; }
.sidebar-box h4 { font-size: .9rem; font-weight: 700; color: var(--navy); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 14px; border-bottom: 2px solid var(--orange); padding-bottom: 8px; }
.sidebar-links { list-style: none; }
.sidebar-links li { border-bottom: 1px solid var(--mid); padding: 7px 0; font-size: .85rem; }
.sidebar-links li:last-child { border-bottom: none; }
.sidebar-links a { color: var(--text); }
.sidebar-links a:hover { color: var(--orange); }
.sidebar-links .current { color: var(--orange); font-weight: 600; }
.sidebar-capture { background: var(--navy); border-radius: 10px; padding: 24px; }
.sidebar-capture h4 { color: var(--white); font-size: .95rem; font-weight: 700; margin-bottom: 8px; }
.sidebar-capture p { color: rgba(255,255,255,.7); font-size: .82rem; margin-bottom: 14px; }
.sidebar-capture input { width: 100%; padding: 10px 12px; border-radius: var(--radius); border: none; font-size: .88rem; margin-bottom: 8px; }
.sidebar-capture button { width: 100%; background: var(--orange); color: var(--white); padding: 10px; border: none; border-radius: var(--radius); font-weight: 700; cursor: pointer; font-size: .9rem; }

/* ---- FOOTER ---- */
footer { background: var(--navy-dark); color: rgba(255,255,255,.65); padding: 56px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand p { font-size: .88rem; margin-top: 12px; max-width: 260px; }
.footer-col h5 { color: var(--white); font-size: .85rem; font-weight: 700; text-transform: uppercase; letter-spacing: .8px; margin-bottom: 14px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: rgba(255,255,255,.6); font-size: .88rem; }
.footer-col a:hover { color: var(--white); text-decoration: none; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding-top: 20px; font-size: .8rem; display: flex; justify-content: space-between; }

/* ---- BREADCRUMB ---- */
.breadcrumb { background: var(--light); padding: 12px 0; border-bottom: 1px solid var(--mid); }
.breadcrumb ol { display: flex; gap: 8px; list-style: none; font-size: .82rem; color: var(--muted); }
.breadcrumb li + li::before { content: '›'; margin-right: 8px; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--orange); }

/* ---- UTILITIES ---- */
.text-orange { color: var(--orange); }
.bg-light { background: var(--light); }
.mt-8 { margin-top: 8px; }
.mb-0 { margin-bottom: 0; }
.phase-badge { display: inline-block; background: var(--navy); color: var(--white); font-size: .7rem; font-weight: 700; padding: 3px 10px; border-radius: 20px; letter-spacing: .5px; text-transform: uppercase; }

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .hero-inner, .capture-inner, .article-layout { grid-template-columns: 1fr; }
  .hero-img { display: none; }
  .steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .nav-links { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { padding: 48px 0; }
  .tools-grid { grid-template-columns: 1fr; }
}