/* Houston TX HVAC Repair — visual system adapted from Hill Country HVAC Repair
   Navy + amber heat theme, Oswald headlines, Source Sans 3 body */

:root {
  --navy: #1a3a52;
  --navy-mid: #2d5a7b;
  --amber: #f59e0b;
  --amber-hover: #d97706;
  --text: #333;
  --bg: #f5f5f5;
  --white: #fff;
  --muted: #f9fafb;
  --sky: #f0f9ff;
  --border: #ddd;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Source Sans 3", system-ui, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

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

a {
  color: var(--amber);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Sticky call bar */
.sticky-call {
  position: sticky;
  top: 0;
  background: var(--amber);
  color: var(--white);
  padding: 12px 16px;
  text-align: center;
  font-weight: 700;
  z-index: 200;
  font-size: 0.95rem;
}

.sticky-call a {
  color: var(--white);
  text-decoration: none;
}

.sticky-call a:hover {
  text-decoration: underline;
}

/* Site nav — main pages only (suburb pages intentionally excluded) */
.site-nav {
  background: var(--navy);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-nav .nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  flex-wrap: wrap;
}

.site-nav .brand {
  color: var(--white);
  text-decoration: none;
  font-family: "Oswald", sans-serif;
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}

.site-nav .brand span {
  color: var(--amber);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  list-style: none;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.88);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--amber);
}

.nav-call {
  display: inline-block;
  background: var(--amber);
  color: var(--white) !important;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 8px 14px;
  border-radius: 4px;
  white-space: nowrap;
  transition: background 0.2s ease;
}

.nav-call:hover {
  background: var(--amber-hover);
  color: var(--white) !important;
}

/* Hero / page header */
.page-hero {
  background:
    linear-gradient(135deg, rgba(26, 58, 82, 0.92) 0%, rgba(45, 90, 123, 0.88) 55%, rgba(26, 58, 82, 0.9) 100%),
    radial-gradient(ellipse at 20% 20%, rgba(245, 158, 11, 0.18), transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(45, 90, 123, 0.5), transparent 45%),
    linear-gradient(135deg, #1a3a52 0%, #2d5a7b 100%);
  color: var(--white);
  padding: 56px 0 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -12deg,
    transparent,
    transparent 14px,
    rgba(255, 255, 255, 0.015) 14px,
    rgba(255, 255, 255, 0.015) 15px
  );
  pointer-events: none;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero .brand-mark {
  font-family: "Oswald", sans-serif;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 12px;
  line-height: 1.1;
}

.page-hero .brand-mark span {
  color: var(--amber);
}

.page-hero h1 {
  font-family: "Oswald", sans-serif;
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  font-weight: 500;
  margin-bottom: 12px;
  opacity: 0.98;
}

.page-hero .lede {
  font-size: 1.1rem;
  max-width: 640px;
  margin: 0 auto 12px;
  opacity: 0.95;
}

.page-hero .phone {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--amber);
  margin: 10px 0 4px;
}

.cta-button {
  display: inline-block;
  background: var(--amber);
  color: var(--white);
  padding: 14px 36px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: 700;
  margin-top: 18px;
  transition: background 0.25s ease, transform 0.25s ease;
}

.cta-button:hover {
  background: var(--amber-hover);
  transform: translateY(-1px);
}

.cta-button.secondary {
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.75);
  margin-left: 10px;
}

.cta-button.secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 8px;
}

/* Sections */
section,
.content-block {
  background: var(--white);
  margin: 28px 0;
  padding: 36px 32px;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

h2 {
  font-size: clamp(1.55rem, 3vw, 2rem);
  margin-bottom: 16px;
  color: var(--navy);
  font-family: "Oswald", sans-serif;
  font-weight: 600;
}

h3 {
  font-size: 1.25rem;
  margin-top: 18px;
  margin-bottom: 8px;
  color: var(--navy-mid);
  font-family: "Oswald", sans-serif;
  font-weight: 500;
}

p + p {
  margin-top: 12px;
}

ul.check-list {
  margin: 12px 0 0 22px;
  line-height: 2;
}

.services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.service-card {
  background: var(--muted);
  padding: 20px;
  border-left: 4px solid var(--amber);
  border-radius: 4px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.service-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.service-card h3,
.service-card h4 {
  color: var(--navy);
  margin: 0 0 10px;
  font-family: "Oswald", sans-serif;
  font-size: 1.15rem;
  font-weight: 600;
}

.service-card a {
  color: var(--navy);
  text-decoration: none;
  font-weight: 700;
}

.service-card a:hover {
  color: var(--amber-hover);
}

.feature-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.feature-link {
  background: var(--sky);
  padding: 20px;
  border-radius: 6px;
  text-decoration: none;
  color: var(--navy);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: block;
}

.feature-link:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

.feature-link h3,
.feature-link h4 {
  color: var(--amber);
  margin: 0 0 8px;
  font-family: "Oswald", sans-serif;
}

/* Forms */
form.lead-form {
  background: var(--muted);
  padding: 28px;
  border-radius: 8px;
  max-width: 520px;
  margin: 18px auto 0;
}

form.lead-form label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-top: 8px;
  color: var(--navy);
}

form.lead-form input,
form.lead-form textarea,
form.lead-form select {
  width: 100%;
  padding: 12px;
  margin: 6px 0 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: inherit;
  font-size: 1rem;
}

form.lead-form button {
  background: var(--amber);
  color: var(--white);
  padding: 14px 28px;
  border: none;
  border-radius: 4px;
  font-weight: 700;
  cursor: pointer;
  width: 100%;
  font-size: 1rem;
  margin-top: 6px;
  transition: background 0.2s ease;
}

form.lead-form button:hover {
  background: var(--amber-hover);
}

/* Local / suburb content */
.local-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  margin-top: 12px;
}

@media (max-width: 800px) {
  .local-grid {
    grid-template-columns: 1fr;
  }

  .cta-button.secondary {
    margin-left: 0;
  }
}

.aside-box {
  background: var(--sky);
  padding: 20px;
  border-radius: 6px;
  border-top: 3px solid var(--amber);
}

.aside-box h3 {
  margin-top: 0;
  color: var(--navy);
}

.aside-box ul {
  margin: 10px 0 0 18px;
  line-height: 1.85;
}

.breadcrumb {
  font-size: 0.9rem;
  margin-bottom: 12px;
  color: #666;
}

.breadcrumb a {
  color: var(--navy-mid);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--amber-hover);
}

/* Footer */
.site-footer {
  background: var(--navy);
  color: var(--white);
  padding: 40px 0 28px;
  margin-top: 40px;
}

.site-footer a {
  color: var(--amber);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 28px;
  text-align: left;
  margin-bottom: 28px;
}

.footer-grid h3 {
  color: var(--amber);
  margin: 0 0 12px;
  font-size: 1.05rem;
}

.footer-grid ul {
  list-style: none;
  line-height: 1.9;
}

.footer-grid p {
  opacity: 0.92;
  font-size: 0.95rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 18px;
  text-align: center;
  font-size: 0.9rem;
  opacity: 0.9;
}

.footer-bottom p + p {
  margin-top: 8px;
}

/* Motion */
@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-hero .brand-mark,
.page-hero h1,
.page-hero .lede,
.page-hero .cta-row {
  animation: fade-up 0.55s ease both;
}

.page-hero h1 {
  animation-delay: 0.08s;
}

.page-hero .lede {
  animation-delay: 0.14s;
}

.page-hero .cta-row {
  animation-delay: 0.22s;
}

@media (prefers-reduced-motion: reduce) {
  .page-hero .brand-mark,
  .page-hero h1,
  .page-hero .lede,
  .page-hero .cta-row,
  .service-card,
  .feature-link,
  .cta-button {
    animation: none;
    transition: none;
  }
}