/* ============================================
   HVACPermitGuide.pages.dev — Main Stylesheet
   Aesthetic: Utilitarian-Editorial / Government-grade clarity
   Fonts: Syne (headings) + Source Serif 4 (body)
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=Source+Serif+4:ital,wght@0,300;0,400;0,600;1,400&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── CSS Variables ── */
:root {
  --clr-bg:         #F7F5F0;
  --clr-surface:    #FFFFFF;
  --clr-border:     #D9D4C8;
  --clr-accent:     #C8451A;       /* burnt orange — HVAC / heat energy */
  --clr-accent-dk:  #9E3212;
  --clr-cool:       #1A6EC8;       /* cooling blue */
  --clr-cool-lt:    #EBF3FC;
  --clr-heat-lt:    #FEF1EC;
  --clr-text:       #1C1A16;
  --clr-muted:      #6B6560;
  --clr-tag-bg:     #EFEFEA;
  --clr-ok:         #1A7A3C;
  --clr-warn:       #B85A00;

  --font-head:  'Syne', sans-serif;
  --font-body:  'Source Serif 4', Georgia, serif;
  --font-mono:  'JetBrains Mono', monospace;

  --max-w: 1100px;
  --col-gap: 2rem;
  --radius: 4px;
  --shadow: 0 2px 12px rgba(0,0,0,0.07);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--clr-bg);
  color: var(--clr-text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.7;
}
img { max-width: 100%; display: block; }
a { color: var(--clr-accent); text-decoration: none; }
a:hover { text-decoration: underline; color: var(--clr-accent-dk); }

/* ── Typography ── */
h1, h2, h3, h4 {
  font-family: var(--font-head);
  line-height: 1.2;
  color: var(--clr-text);
}
h1 { font-size: clamp(2rem, 4.5vw, 3rem); font-weight: 800; }
h2 { font-size: clamp(1.4rem, 2.8vw, 1.9rem); font-weight: 700; margin-bottom: 0.6em; }
h3 { font-size: clamp(1.1rem, 2vw, 1.35rem); font-weight: 600; margin-bottom: 0.4em; }
h4 { font-size: 1rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--clr-muted); }
p { margin-bottom: 1.1em; }
ul, ol { padding-left: 1.4em; margin-bottom: 1.1em; }
li { margin-bottom: .35em; }
strong { font-weight: 600; }

/* ── Layout Helpers ── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 1.25rem; }
.section    { padding: 3.5rem 0; }
.section--sm { padding: 2rem 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--col-gap); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--col-gap); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
@media (max-width: 860px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }
@media (max-width: 600px) { .grid-4 { grid-template-columns: 1fr 1fr; } }

/* ── SITE HEADER ── */
.site-header {
  background: var(--clr-text);
  border-bottom: 3px solid var(--clr-accent);
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: .85rem;
  padding-bottom: .85rem;
  gap: 1rem;
}
.site-logo {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.25rem;
  color: #fff;
  display: flex;
  align-items: center;
  gap: .5rem;
  white-space: nowrap;
}
.site-logo span { color: var(--clr-accent); }
.site-logo .logo-icon {
  width: 28px; height: 28px;
  background: var(--clr-accent);
  border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  font-size: .9rem;
}
.site-nav { display: flex; align-items: center; gap: 1.5rem; }
.site-nav a {
  font-family: var(--font-head);
  font-size: .85rem;
  font-weight: 600;
  color: #ccc;
  text-transform: uppercase;
  letter-spacing: .07em;
  transition: color .2s;
}
.site-nav a:hover { color: #fff; text-decoration: none; }
.site-nav a.cta-nav {
  background: var(--clr-accent);
  color: #fff;
  padding: .4rem .9rem;
  border-radius: var(--radius);
}
.site-nav a.cta-nav:hover { background: var(--clr-accent-dk); }

/* Mobile nav toggle */
.nav-toggle { display: none; background: none; border: none; cursor: pointer; color: #fff; font-size: 1.5rem; }
@media (max-width: 760px) {
  .site-nav { display: none; flex-direction: column; align-items: flex-start; position: absolute; top: 100%; left: 0; right: 0; background: var(--clr-text); padding: 1rem 1.25rem; gap: .75rem; border-top: 1px solid #333; }
  .site-nav.open { display: flex; }
  .nav-toggle { display: block; }
}

/* ── HERO ── */
.hero {
  background: var(--clr-text);
  color: #fff;
  padding: 4rem 0 3.5rem;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -80px; right: -120px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(200,69,26,.18) 0%, transparent 70%);
  pointer-events: none;
}
.hero-badge {
  display: inline-block;
  font-family: var(--font-head);
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--clr-accent);
  background: rgba(200,69,26,.12);
  border: 1px solid rgba(200,69,26,.3);
  padding: .3rem .75rem;
  border-radius: 2px;
  margin-bottom: 1.25rem;
}
.hero h1 { color: #fff; margin-bottom: .75rem; }
.hero p { font-size: 1.1rem; color: #bbb; max-width: 620px; margin-bottom: 1.75rem; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-family: var(--font-head);
  font-size: .9rem;
  font-weight: 700;
  padding: .7rem 1.4rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all .2s;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary { background: var(--clr-accent); color: #fff; }
.btn-primary:hover { background: var(--clr-accent-dk); text-decoration: none; color: #fff; }
.btn-outline { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,.4); }
.btn-outline:hover { border-color: #fff; text-decoration: none; color: #fff; }
.btn-cool { background: var(--clr-cool); color: #fff; }
.btn-cool:hover { background: #1558a0; text-decoration: none; color: #fff; }

/* ── STAT BAR ── */
.stat-bar {
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  padding: 1.25rem 0;
}
.stat-bar .container { display: flex; gap: 2rem; flex-wrap: wrap; align-items: center; }
.stat-item { display: flex; flex-direction: column; }
.stat-item .stat-num {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--clr-accent);
  line-height: 1;
}
.stat-item .stat-label {
  font-size: .8rem;
  color: var(--clr-muted);
  font-family: var(--font-head);
  text-transform: uppercase;
  letter-spacing: .07em;
}
.stat-divider { width: 1px; height: 36px; background: var(--clr-border); }
@media (max-width: 600px) { .stat-divider { display: none; } }

/* ── SECTION LABELS ── */
.section-label {
  font-family: var(--font-head);
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--clr-accent);
  margin-bottom: .6rem;
  display: block;
}

/* ── TOOL WIDGET ── */
.tool-widget {
  background: var(--clr-text);
  color: #fff;
  border-radius: 8px;
  padding: 2.5rem;
  margin: 2rem 0;
}
.tool-widget h2 { color: #fff; }
.tool-widget p { color: #bbb; }
.tool-steps { display: flex; gap: 1rem; flex-wrap: wrap; margin: 1.5rem 0; }
.tool-step {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  padding: .75rem 1.2rem;
  font-family: var(--font-head);
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  color: #ddd;
  transition: all .2s;
  flex: 1 1 120px;
  text-align: center;
}
.tool-step:hover, .tool-step.active { background: var(--clr-accent); color: #fff; border-color: var(--clr-accent); }
.tool-result {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-top: 1rem;
  display: none;
}
.tool-result.show { display: block; }
.tool-result .result-verdict {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: .5rem;
}
.verdict-yes { color: var(--clr-accent) !important; }
.verdict-check { color: #F5C518 !important; }
.verdict-no { color: #4CAF80 !important; }

/* ── CARDS ── */
.card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: 6px;
  padding: 1.5rem;
  transition: box-shadow .2s, transform .2s;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.card-icon { font-size: 1.75rem; margin-bottom: .75rem; }
.card h3 { margin-bottom: .35rem; }
.card p { font-size: .95rem; color: var(--clr-muted); margin-bottom: .75rem; }
.card .card-link {
  font-family: var(--font-head);
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--clr-accent);
}
.card-featured {
  border-left: 4px solid var(--clr-accent);
}
.card-cool {
  border-left: 4px solid var(--clr-cool);
}

/* ── STATE DIRECTORY TABLE ── */
.state-table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.state-table th {
  background: var(--clr-text);
  color: #fff;
  font-family: var(--font-head);
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  padding: .7rem 1rem;
  text-align: left;
}
.state-table td { padding: .65rem 1rem; border-bottom: 1px solid var(--clr-border); vertical-align: top; }
.state-table tr:hover td { background: var(--clr-tag-bg); }
.badge {
  display: inline-block;
  font-family: var(--font-head);
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: .2rem .55rem;
  border-radius: 2px;
  white-space: nowrap;
}
.badge-req   { background: #FEE2E2; color: #991B1B; }
.badge-cond  { background: #FEF3C7; color: #92400E; }
.badge-local { background: var(--clr-cool-lt); color: #1E3A8A; }
.badge-no    { background: #D1FAE5; color: #065F46; }

/* ── CONTENT LAYOUT (article pages) ── */
.content-wrap { display: grid; grid-template-columns: 1fr 300px; gap: 3rem; align-items: start; }
@media (max-width: 860px) { .content-wrap { grid-template-columns: 1fr; } }
.sidebar-sticky { position: sticky; top: 80px; }
.sidebar-box {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: 6px;
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}
.sidebar-box h4 { margin-bottom: .75rem; }
.sidebar-box ul { padding-left: 0; list-style: none; }
.sidebar-box ul li { border-bottom: 1px solid var(--clr-border); padding: .45rem 0; font-size: .9rem; }
.sidebar-box ul li:last-child { border-bottom: none; }
.toc-list { padding-left: 0; list-style: none; counter-reset: toc; }
.toc-list li { padding: .35rem 0; font-size: .9rem; border-bottom: 1px solid var(--clr-border); }
.toc-list li:last-child { border-bottom: none; }
.toc-list a { color: var(--clr-text); }
.toc-list a:hover { color: var(--clr-accent); }

/* ── FAQ ── */
.faq-item {
  border-bottom: 1px solid var(--clr-border);
  padding: 1rem 0;
}
.faq-q {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.faq-q::after { content: '+'; font-size: 1.25rem; color: var(--clr-accent); flex-shrink: 0; }
.faq-item.open .faq-q::after { content: '−'; }
.faq-a { display: none; padding-top: .75rem; color: var(--clr-muted); font-size: .95rem; }
.faq-item.open .faq-a { display: block; }

/* ── BREADCRUMB ── */
.breadcrumb {
  font-family: var(--font-head);
  font-size: .8rem;
  color: var(--clr-muted);
  padding: .75rem 0;
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  align-items: center;
}
.breadcrumb a { color: var(--clr-muted); }
.breadcrumb a:hover { color: var(--clr-accent); }
.breadcrumb span { color: var(--clr-border); }

/* ── INFO BOXES ── */
.info-box {
  border-radius: 6px;
  padding: 1.2rem 1.4rem;
  margin: 1.5rem 0;
  display: flex;
  gap: .9rem;
  align-items: flex-start;
}
.info-box .box-icon { font-size: 1.25rem; flex-shrink: 0; margin-top: .1rem; }
.info-box .box-content { flex: 1; }
.info-box .box-content p:last-child { margin-bottom: 0; }
.info-box h4 { margin-bottom: .3rem; font-family: var(--font-head); font-size: .9rem; text-transform: uppercase; letter-spacing: .08em; }
.box-required { background: var(--clr-heat-lt); border: 1px solid #F4C5B4; }
.box-required h4 { color: var(--clr-accent); }
.box-note { background: #FFFBEB; border: 1px solid #FDE68A; }
.box-note h4 { color: #92400E; }
.box-tip { background: var(--clr-cool-lt); border: 1px solid #BFDBFE; }
.box-tip h4 { color: var(--clr-cool); }
.box-ok { background: #ECFDF5; border: 1px solid #A7F3D0; }
.box-ok h4 { color: var(--clr-ok); }

/* ── COUNTY COMPARISON TABLE ── */
.compare-table { width: 100%; border-collapse: collapse; font-size: .9rem; margin: 1.5rem 0; overflow-x: auto; display: block; }
.compare-table th {
  background: var(--clr-tag-bg);
  border: 1px solid var(--clr-border);
  padding: .65rem .9rem;
  font-family: var(--font-head);
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--clr-muted);
  white-space: nowrap;
}
.compare-table td { border: 1px solid var(--clr-border); padding: .6rem .9rem; vertical-align: top; }
.compare-table tr:nth-child(even) td { background: #FAFAF8; }

/* ── PROCESS STEPS ── */
.process-steps { counter-reset: steps; list-style: none; padding: 0; }
.process-steps li {
  counter-increment: steps;
  display: flex;
  gap: 1rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--clr-border);
  align-items: flex-start;
}
.process-steps li:last-child { border-bottom: none; }
.process-steps li::before {
  content: counter(steps);
  min-width: 32px;
  height: 32px;
  background: var(--clr-accent);
  color: #fff;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: .85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  flex-shrink: 0;
}
.step-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: .95rem;
  margin-bottom: .25rem;
}
.step-desc { font-size: .9rem; color: var(--clr-muted); margin: 0; }

/* ── HIGHLIGHT CALLOUT ── */
.callout {
  background: var(--clr-text);
  color: #fff;
  border-radius: 8px;
  padding: 2rem 2.5rem;
  margin: 2.5rem 0;
  display: flex;
  gap: 2rem;
  align-items: center;
  flex-wrap: wrap;
}
.callout h3 { color: #fff; margin-bottom: .35rem; }
.callout p { color: #aaa; margin: 0; font-size: .95rem; }
.callout .callout-cta { flex-shrink: 0; }

/* ── FOOTER ── */
.site-footer {
  background: var(--clr-text);
  color: #888;
  padding: 3rem 0 1.5rem;
  margin-top: 5rem;
  border-top: 3px solid var(--clr-accent);
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2rem; margin-bottom: 2.5rem; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand { font-family: var(--font-head); font-size: 1.15rem; font-weight: 800; color: #fff; margin-bottom: .75rem; }
.footer-brand span { color: var(--clr-accent); }
.footer-desc { font-size: .88rem; line-height: 1.6; }
.footer-col h4 { font-family: var(--font-head); font-size: .78rem; text-transform: uppercase; letter-spacing: .1em; color: #aaa; margin-bottom: .75rem; }
.footer-col ul { list-style: none; padding: 0; }
.footer-col ul li { margin-bottom: .4rem; }
.footer-col ul li a { color: #888; font-size: .88rem; }
.footer-col ul li a:hover { color: #fff; text-decoration: none; }
.footer-bottom {
  border-top: 1px solid #2a2a2a;
  padding-top: 1.25rem;
  font-size: .8rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: gap;
  gap: .75rem;
}
.footer-bottom a { color: #666; }
.footer-bottom a:hover { color: #aaa; }

/* ── DISCLAIMER ── */
.disclaimer {
  background: var(--clr-tag-bg);
  border: 1px solid var(--clr-border);
  border-radius: 4px;
  padding: 1rem 1.25rem;
  font-size: .82rem;
  color: var(--clr-muted);
  margin: 2rem 0;
  line-height: 1.55;
}
.disclaimer strong { color: var(--clr-text); }

/* ── UTILITY ── */
.text-muted  { color: var(--clr-muted); }
.text-accent { color: var(--clr-accent); }
.text-center { text-align: center; }
.mb-0 { margin-bottom: 0 !important; }
.mt-sm { margin-top: .75rem; }
.mt-md { margin-top: 1.5rem; }
.divider { border: none; border-top: 1px solid var(--clr-border); margin: 2.5rem 0; }

/* ── ADS PLACEHOLDER ── */
.ad-unit {
  background: var(--clr-tag-bg);
  border: 1px dashed var(--clr-border);
  border-radius: 4px;
  text-align: center;
  padding: 1.5rem;
  color: var(--clr-muted);
  font-family: var(--font-head);
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  margin: 1.5rem 0;
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ── PRINT ── */
@media print {
  .site-header, .site-footer, .ad-unit, .callout, .tool-widget { display: none; }
  body { font-size: 14px; }
}