/* FlowProHVAC — Shared styles
   Brand: royal blue + gold. Mobile-first. Single shared stylesheet so every page is consistent.
*/

:root {
  --royal-blue: #2b4cad;
  --royal-blue-dark: #1b3384;
  --royal-blue-darker: #122560;
  --royal-blue-light: #5b78d2;
  --royal-gold: #e6b422;
  --royal-gold-light: #f5cc4d;
  --royal-gold-dark: #c99917;
  --white: #ffffff;
  --light-gray: #f6f8fb;
  --medium-gray: #e6e9ef;
  --border-gray: #d8dde6;
  --text: #1f2433;
  --text-muted: #5a6275;
  --success: #1f9d55;
  --gradient-blue: linear-gradient(135deg, var(--royal-blue), var(--royal-blue-dark));
  --shadow-sm: 0 2px 6px rgba(18, 37, 96, 0.06);
  --shadow-md: 0 8px 24px rgba(18, 37, 96, 0.10);
  --shadow-lg: 0 16px 40px rgba(18, 37, 96, 0.14);
  --radius: 12px;
  --radius-sm: 8px;
  --header-h: 72px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-weight: 400;
  color: var(--text);
  line-height: 1.6;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--royal-blue); text-decoration: none; }
a:hover { color: var(--royal-blue-dark); }
img { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4 { font-weight: 700; line-height: 1.25; color: var(--royal-blue-darker); }
h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); margin-bottom: 1rem; }
h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }
p { margin-bottom: 1rem; }
ul, ol { margin: 0 0 1rem 1.25rem; }
li { margin-bottom: 0.35rem; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.container-sm { max-width: 820px; margin: 0 auto; padding: 0 20px; }
.section { padding: 72px 0; }
.section-tight { padding: 48px 0; }
.bg-gray { background: var(--light-gray); }
.bg-blue { background: var(--gradient-blue); color: var(--white); }
.bg-blue h1, .bg-blue h2, .bg-blue h3 { color: var(--white); }
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mb-0 { margin-bottom: 0; }

/* ===== HEADER ===== */
header {
  background: var(--gradient-blue);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0,0,0,0.15);
}
.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--header-h);
  gap: 12px;
}
.logo { display: flex; align-items: center; gap: 8px; }
.logo a { color: var(--white); font-size: 1.4rem; font-weight: 700; letter-spacing: 0.3px; text-decoration: none; }
.logo .accent { color: var(--royal-gold); }
.logo-icon { color: var(--royal-gold); font-size: 1.5rem; }

nav.primary ul { list-style: none; display: flex; align-items: center; gap: 22px; margin: 0; }
nav.primary li { margin: 0; }
nav.primary a {
  color: var(--white);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 6px 0;
  position: relative;
}
nav.primary a:hover { color: var(--royal-gold); }
nav.primary .has-dropdown { position: relative; }
nav.primary .dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  background: var(--white);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  min-width: 240px;
  padding: 10px 0;
  list-style: none;
  flex-direction: column;
}
nav.primary .has-dropdown:hover .dropdown,
nav.primary .has-dropdown:focus-within .dropdown { display: flex; }
nav.primary .dropdown li { margin: 0; }
nav.primary .dropdown a {
  display: block;
  color: var(--text);
  padding: 8px 18px;
  font-size: 0.92rem;
  font-weight: 400;
}
nav.primary .dropdown a:hover { background: var(--light-gray); color: var(--royal-blue); }

.header-cta { display: flex; align-items: center; gap: 12px; }
.header-cta .call-link {
  color: var(--white);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 8px 14px;
  border: 1px solid rgba(255,255,255,0.4);
  border-radius: 999px;
}
.header-cta .call-link:hover { background: var(--royal-gold); color: var(--royal-blue-darker); border-color: var(--royal-gold); }

.menu-btn { display: none; background: none; border: 0; color: var(--white); font-size: 1.5rem; cursor: pointer; }

@media (max-width: 900px) {
  nav.primary { display: none; position: absolute; top: var(--header-h); left: 0; right: 0; background: var(--royal-blue-dark); padding: 16px 20px; box-shadow: var(--shadow-md); }
  nav.primary.open { display: block; }
  nav.primary ul { flex-direction: column; align-items: stretch; gap: 0; }
  nav.primary li { border-bottom: 1px solid rgba(255,255,255,0.08); }
  nav.primary a { display: block; padding: 12px 0; }
  nav.primary .dropdown { position: static; box-shadow: none; background: rgba(0,0,0,0.15); padding: 4px 0 4px 14px; min-width: 0; display: flex; }
  nav.primary .dropdown a { color: rgba(255,255,255,0.85); }
  nav.primary .dropdown a:hover { background: transparent; color: var(--royal-gold); }
  .menu-btn { display: inline-block; }
  .header-cta .call-link span { display: none; }
}

/* ===== HERO ===== */
.hero {
  background: var(--gradient-blue);
  color: var(--white);
  padding: 80px 0 96px;
  position: relative;
  overflow: hidden;
}
.hero::before, .hero::after {
  content: ''; position: absolute; border-radius: 50%; background: var(--royal-gold); opacity: 0.07;
}
.hero::before { width: 320px; height: 320px; top: -120px; right: -80px; }
.hero::after { width: 220px; height: 220px; bottom: -100px; left: -60px; opacity: 0.04; }
.hero h1 { color: var(--white); margin-bottom: 16px; }
.hero .lede { font-size: 1.15rem; max-width: 640px; opacity: 0.95; margin-bottom: 24px; }
.hero .badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.hero .badge {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
}
.hero .cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.hero-stars { color: var(--royal-gold); font-size: 1.4rem; letter-spacing: 4px; margin-bottom: 14px; }
.hero-rating { font-size: 0.95rem; opacity: 0.9; margin-bottom: 18px; }

.page-hero {
  background: var(--gradient-blue);
  color: var(--white);
  padding: 56px 0 40px;
}
.page-hero h1 { color: var(--white); margin-bottom: 10px; }
.page-hero p { opacity: 0.92; max-width: 720px; margin-bottom: 0; }

/* ===== BREADCRUMB ===== */
.breadcrumb { font-size: 0.85rem; opacity: 0.85; margin-bottom: 12px; }
.breadcrumb a { color: rgba(255,255,255,0.85); }
.breadcrumb a:hover { color: var(--royal-gold); }
.breadcrumb .sep { margin: 0 6px; opacity: 0.6; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  background: var(--royal-gold);
  color: var(--royal-blue-darker);
  padding: 12px 26px;
  border-radius: var(--radius-sm);
  font-size: 0.98rem;
  font-weight: 600;
  border: 0;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
  text-align: center;
}
.btn:hover { background: var(--royal-gold-light); transform: translateY(-2px); box-shadow: var(--shadow-md); color: var(--royal-blue-darker); }
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.5);
}
.btn-outline:hover { background: rgba(255,255,255,0.1); color: var(--white); box-shadow: none; transform: translateY(-2px); }
.btn-blue { background: var(--royal-blue); color: var(--white); }
.btn-blue:hover { background: var(--royal-blue-dark); color: var(--white); }
.btn-lg { padding: 14px 32px; font-size: 1.05rem; }

/* ===== SECTION TITLES ===== */
.section-head { text-align: center; max-width: 720px; margin: 0 auto 40px; }
.section-head h2 { color: var(--royal-blue); position: relative; display: inline-block; padding-bottom: 14px; }
.section-head h2::after {
  content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 56px; height: 3px; background: var(--royal-gold);
}
.section-head p { color: var(--text-muted); font-size: 1.05rem; margin-top: 14px; margin-bottom: 0; }

/* ===== CARD GRIDS ===== */
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 32px; align-items: start; }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }

.card {
  background: var(--white);
  border: 1px solid var(--border-gray);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  box-shadow: var(--shadow-sm);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--royal-blue-light); }
.card .icon {
  font-size: 1.8rem;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--royal-blue-light), var(--royal-blue));
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.card h3 { color: var(--royal-blue); margin-bottom: 10px; }
.card p { color: var(--text-muted); margin-bottom: 16px; }
.card .card-link { margin-top: auto; color: var(--royal-blue); font-weight: 600; font-size: 0.92rem; }
.card .card-link:hover { color: var(--royal-blue-dark); }
.card .card-link::after { content: ' →'; }

/* ===== TRUST STRIP ===== */
.trust-strip {
  background: var(--white);
  border-bottom: 1px solid var(--border-gray);
  padding: 20px 0;
}
.trust-strip .items {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 28px 40px;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
}
.trust-strip .items span { display: flex; align-items: center; gap: 8px; }
.trust-strip .items i { color: var(--royal-gold); font-size: 1.15rem; }

/* ===== ABOUT / FEATURES ===== */
.feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px 24px;
  margin-top: 20px;
  list-style: none;
  padding: 0;
}
.feature-list li { display: flex; align-items: flex-start; gap: 12px; margin: 0; }
.feature-list .check {
  flex: 0 0 28px;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--royal-gold);
  color: var(--royal-blue-darker);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}
.feature-list span.label { font-weight: 500; }

/* ===== TESTIMONIALS ===== */
.testimonial {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.testimonial p { color: rgba(255,255,255,0.92); font-style: italic; }
.testimonial .stars { color: var(--royal-gold); font-size: 1.05rem; letter-spacing: 2px; margin-bottom: 10px; }
.testimonial .author { display: flex; align-items: center; gap: 12px; margin-top: auto; }
.testimonial .avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--white); color: var(--royal-blue);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
}
.testimonial .who { font-weight: 600; color: var(--white); }
.testimonial .source { font-size: 0.8rem; color: rgba(255,255,255,0.7); }
.reviews-cta { text-align: center; margin-top: 28px; }

/* ===== CTA BANNER ===== */
.cta-banner {
  background: var(--gradient-blue);
  color: var(--white);
  border-radius: var(--radius);
  padding: 36px 32px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  box-shadow: var(--shadow-md);
}
.cta-banner h3 { color: var(--white); font-size: 1.4rem; margin: 0 0 4px; }
.cta-banner p { margin: 0; opacity: 0.9; }
.cta-banner .actions { display: flex; flex-wrap: wrap; gap: 10px; }

/* ===== FAQ ===== */
.faq { max-width: 820px; margin: 0 auto; }
.faq details {
  background: var(--white);
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-sm);
  padding: 18px 22px;
  margin-bottom: 10px;
  box-shadow: var(--shadow-sm);
}
.faq summary {
  font-weight: 600;
  color: var(--royal-blue-dark);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; font-size: 1.4rem; color: var(--royal-gold); font-weight: 700; line-height: 1; }
.faq details[open] summary::after { content: '−'; }
.faq p { margin: 12px 0 0; color: var(--text-muted); }

/* ===== CONTACT FORM + INFO ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
@media (max-width: 800px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-info .item { display: flex; gap: 14px; margin-bottom: 18px; align-items: flex-start; }
.contact-info .item .ic {
  flex: 0 0 38px; width: 38px; height: 38px; border-radius: 50%;
  background: var(--royal-gold); color: var(--royal-blue-darker);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
}
.contact-info .item a { color: var(--text); font-weight: 500; }
.contact-info .item a:hover { color: var(--royal-blue); }

form.contact-form { background: var(--white); border: 1px solid var(--border-gray); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-sm); }
form.contact-form label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text); margin-bottom: 6px; }
form.contact-form input, form.contact-form textarea, form.contact-form select {
  width: 100%;
  padding: 12px 14px;
  margin-bottom: 14px;
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-sm);
  font-size: 0.98rem;
  font-family: inherit;
  background: var(--white);
}
form.contact-form input:focus, form.contact-form textarea:focus, form.contact-form select:focus {
  outline: 2px solid var(--royal-blue-light); outline-offset: 1px; border-color: var(--royal-blue-light);
}
form.contact-form textarea { min-height: 140px; resize: vertical; }
form.contact-form button { width: 100%; }
form.contact-form .note { font-size: 0.8rem; color: var(--text-muted); margin-top: 6px; }

/* ===== SERVICE AREA LIST ===== */
.area-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
}
.area-grid li { margin: 0; }
.area-grid a {
  display: block;
  background: var(--white);
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-weight: 600;
  color: var(--royal-blue);
  text-align: center;
  transition: all 0.2s;
}
.area-grid a:hover {
  border-color: var(--royal-blue);
  background: var(--royal-blue);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}

/* ===== PROSE / CONTENT PAGE ===== */
.prose { max-width: 760px; margin: 0 auto; }
.prose h2 { margin-top: 2rem; }
.prose h3 { margin-top: 1.5rem; color: var(--royal-blue); }
.prose ul { margin-left: 1.3rem; }
.prose ul li { margin-bottom: 0.5rem; color: var(--text); }

/* ===== FOOTER ===== */
footer {
  background: var(--royal-blue-darker);
  color: rgba(255,255,255,0.85);
  padding: 56px 0 20px;
}
footer .grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; }
@media (max-width: 800px) { footer .grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { footer .grid { grid-template-columns: 1fr; } }
footer h4 { color: var(--royal-gold); font-size: 1rem; margin-bottom: 14px; text-transform: uppercase; letter-spacing: 0.5px; }
footer ul { list-style: none; margin: 0; padding: 0; }
footer li { margin-bottom: 8px; }
footer a { color: rgba(255,255,255,0.8); font-size: 0.92rem; }
footer a:hover { color: var(--royal-gold); }
footer .brand-block p { font-size: 0.92rem; line-height: 1.6; opacity: 0.85; margin-bottom: 14px; }
footer .license { font-size: 0.8rem; opacity: 0.7; margin-top: 10px; }
footer .copyright {
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: 40px;
  padding-top: 16px;
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.7;
}

/* ===== STICKY MOBILE CALL CTA ===== */
.sticky-call {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--royal-gold);
  color: var(--royal-blue-darker);
  text-align: center;
  font-weight: 700;
  padding: 14px 16px;
  box-shadow: 0 -4px 14px rgba(0,0,0,0.18);
  z-index: 90;
  font-size: 1rem;
  text-decoration: none;
}
.sticky-call:hover { background: var(--royal-gold-light); color: var(--royal-blue-darker); }
@media (max-width: 700px) {
  .sticky-call { display: block; }
  body { padding-bottom: 60px; }
}

/* ===== UTILITIES ===== */
.center-cta { text-align: center; margin-top: 28px; }
.muted { color: var(--text-muted); }
.small { font-size: 0.88rem; }
.divider { height: 1px; background: var(--border-gray); margin: 32px 0; }

@media (max-width: 600px) {
  .section { padding: 56px 0; }
  .cta-banner { flex-direction: column; align-items: flex-start; text-align: left; padding: 26px 22px; }
}