/* ============================================
   Summit Heating & Air — Demo Site
   Trust & Authority design system
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;500;600;700&family=Poppins:wght@500;600;700;800&display=swap');

:root {
  --color-primary: #1E40AF;
  --color-primary-dark: #16308C;
  --color-on-primary: #FFFFFF;
  --color-secondary: #3B82F6;
  --color-accent: #EA580C;
  --color-accent-dark: #C2410C;
  --color-background: #FFFFFF;
  --color-surface: #EFF6FF;
  --color-foreground: #1E293B;
  --color-heading: #0F2167;
  --color-muted-text: #475569;
  --color-border: #BFDBFE;
  --color-star: #F59E0B;
  --color-card: #FFFFFF;
  --color-header-bg: #FFFFFF;
  --color-footer-bg: #0F2167;
  --color-link: #1E40AF;
  --color-icon: #1E40AF;
  --color-input-bg: #FFFFFF;
  --color-input-border: #94A3B8;
  color-scheme: light;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(15, 33, 103, 0.08);
  --shadow-md: 0 4px 16px rgba(15, 33, 103, 0.10);
  --shadow-lg: 0 12px 32px rgba(15, 33, 103, 0.14);
  --font-heading: 'Poppins', system-ui, sans-serif;
  --font-body: 'Open Sans', system-ui, sans-serif;
  --header-h: 68px;
}

:root[data-theme="dark"] {
  --color-background: #0B1220;
  --color-surface: #131E33;
  --color-card: #16223B;
  --color-header-bg: #0F1830;
  --color-footer-bg: #0A1428;
  --color-heading: #E6EDF7;
  --color-foreground: #C4D0E2;
  --color-muted-text: #8FA1BD;
  --color-border: #263652;
  --color-link: #82B4FF;
  --color-icon: #6FA8FF;
  --color-input-bg: #101B31;
  --color-input-border: #3A4C6E;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
  color-scheme: dark;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-foreground);
  background: var(--color-background);
  -webkit-font-smoothing: antialiased;
  /* room for the mobile sticky call bar */
  padding-bottom: 72px;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-heading);
  line-height: 1.2;
}

h1 { font-size: clamp(1.9rem, 5vw, 3rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.1rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 600; }

p { max-width: 65ch; }

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

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

section { padding: 56px 0; }

.section-label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.section-intro { color: var(--color-muted-text); margin: 12px 0 32px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 26px;
  min-height: 48px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 200ms ease, border-color 200ms ease, transform 150ms ease, box-shadow 200ms ease;
  touch-action: manipulation;
}
.btn:active { transform: scale(0.98); }
.btn:focus-visible { outline: 3px solid var(--color-secondary); outline-offset: 2px; }

.btn-accent {
  background: var(--color-accent);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn-accent:hover { background: var(--color-accent-dark); }

.btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
}
.btn-primary:hover { background: var(--color-primary-dark); }

.btn-outline {
  background: #fff;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline:hover { background: var(--color-surface); }

.btn svg { width: 20px; height: 20px; flex-shrink: 0; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-header-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: var(--header-h);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}
.brand-mark img { width: 100%; height: 100%; object-fit: cover; }
.brand-mark svg { width: 24px; height: 24px; stroke: #fff; }
.brand-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-heading);
  line-height: 1.1;
}
.brand-name small {
  display: block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.main-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.main-nav a {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-foreground);
  text-decoration: none;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  transition: background-color 180ms ease, color 180ms ease;
}
.main-nav a:hover { background: var(--color-surface); color: var(--color-link); }
.main-nav a.active { color: var(--color-link); font-weight: 600; }
.main-nav a:focus-visible { outline: 3px solid var(--color-secondary); outline-offset: 1px; }

.header-call { display: inline-flex; }
.header-call .btn { padding: 10px 18px; min-height: 44px; font-size: 0.95rem; }

/* Theme toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--color-heading);
  cursor: pointer;
  transition: background-color 180ms ease;
}
.theme-toggle:hover { background: var(--color-surface); }
.theme-toggle:focus-visible { outline: 3px solid var(--color-secondary); outline-offset: 2px; }
.theme-toggle svg { width: 22px; height: 22px; stroke: currentColor; }
.theme-toggle .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
@media (max-width: 900px) {
  .nav-toggle { order: 10; }
  .theme-toggle { margin-left: auto; }
}

/* Mobile nav toggle (checkbox hack, no JS needed) */
.nav-toggle-input { position: absolute; opacity: 0; pointer-events: none; }
.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.nav-toggle:hover { background: var(--color-surface); }
.nav-toggle svg { width: 26px; height: 26px; stroke: var(--color-heading); }
.nav-toggle .icon-close { display: none; }

@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .header-call { display: none; }
  .main-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--color-header-bg);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    padding: 8px 16px 16px;
  }
  .main-nav a { padding: 14px; font-size: 1.05rem; }
  .nav-toggle-input:checked ~ .main-nav { display: flex; }
  .nav-toggle-input:checked ~ .nav-toggle .icon-menu { display: none; }
  .nav-toggle-input:checked ~ .nav-toggle .icon-close { display: block; }
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 55%, #2563EB 100%);
  color: #fff;
  padding: 72px 0 64px;
}
.hero h1 { color: #fff; max-width: 18ch; }
.hero .tagline {
  font-size: clamp(1.05rem, 2.5vw, 1.25rem);
  margin: 16px 0 28px;
  color: #DBEAFE;
  max-width: 50ch;
}
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-ctas .btn-outline { border-color: #fff; color: #fff; background: transparent; }
.hero-ctas .btn-outline:hover { background: rgba(255, 255, 255, 0.12); }

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-top: 30px;
  padding: 0;
  list-style: none;
}
.hero-points li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  color: #EFF6FF;
}
.hero-points svg { width: 18px; height: 18px; stroke: #7DD3FC; flex-shrink: 0; }

/* ---------- Trust bar ---------- */
.trust-bar { background: var(--color-surface); padding: 28px 0; }
.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 18px;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-heading);
}
.trust-item svg { width: 32px; height: 32px; stroke: var(--color-icon); flex-shrink: 0; }
.trust-item small { display: block; font-family: var(--font-body); font-weight: 400; color: var(--color-muted-text); font-size: 0.82rem; }

/* ---------- Cards ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}
.card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 200ms ease, transform 200ms ease;
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.card-icon svg { width: 28px; height: 28px; stroke: var(--color-icon); }
.card h3 { margin-bottom: 8px; }
.card p { color: var(--color-muted-text); font-size: 0.95rem; }
.card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
}
.card .card-link:hover { text-decoration: underline; }
.card .card-link svg { width: 16px; height: 16px; }

.card ul { list-style: none; margin-top: 12px; }
.card ul li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 4px 0;
  color: var(--color-muted-text);
  font-size: 0.93rem;
}
.card ul svg { width: 17px; height: 17px; stroke: var(--color-accent); flex-shrink: 0; margin-top: 3px; }

/* ---------- Reviews ---------- */
.stars { display: flex; gap: 3px; margin-bottom: 12px; }
.stars svg { width: 20px; height: 20px; fill: var(--color-star); stroke: var(--color-star); }
.review-card blockquote { color: var(--color-foreground); font-size: 0.97rem; }
.review-card figcaption {
  margin-top: 14px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-heading);
}
.review-card figcaption small { display: block; font-family: var(--font-body); font-weight: 400; color: var(--color-muted-text); }

.rating-summary {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-heading);
}
.rating-summary .stars { margin: 0; }

/* ---------- Steps / numbered ---------- */
.step-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(120deg, var(--color-primary-dark), var(--color-primary));
  color: #fff;
  text-align: center;
  border-radius: var(--radius);
  padding: 48px 24px;
}
.cta-band h2 { color: #fff; }
.cta-band p { color: #DBEAFE; margin: 12px auto 24px; }
.cta-band .btn-accent { font-size: 1.1rem; }

/* ---------- Service area ---------- */
.area-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px;
  list-style: none;
}
.area-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-weight: 600;
  font-size: 0.93rem;
  color: var(--color-heading);
}
.area-list svg { width: 17px; height: 17px; stroke: var(--color-accent); flex-shrink: 0; }

.map-placeholder {
  margin-top: 32px;
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted-text);
  font-family: var(--font-heading);
  font-weight: 500;
  text-align: center;
  padding: 24px;
}

/* ---------- Forms ---------- */
.quote-form { max-width: 560px; }
.form-row { margin-bottom: 18px; }
.form-row label {
  display: block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--color-heading);
  margin-bottom: 6px;
}
.form-row .req { color: var(--color-accent); }
.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-foreground);
  background: var(--color-input-bg);
  border: 1.5px solid var(--color-input-border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  min-height: 48px;
  transition: border-color 180ms ease, box-shadow 180ms ease;
}
.form-row textarea { min-height: 110px; resize: vertical; }
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--color-icon);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}
.form-hint { font-size: 0.83rem; color: var(--color-muted-text); margin-top: 5px; }

.contact-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 800px) {
  .contact-split { grid-template-columns: 1fr; }
}

.contact-info-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
}
.contact-info-card .info-row {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 12px 0;
}
.contact-info-card .info-row svg { width: 24px; height: 24px; stroke: var(--color-icon); flex-shrink: 0; margin-top: 2px; }
.contact-info-card .info-row strong { font-family: var(--font-heading); color: var(--color-heading); display: block; }
.contact-info-card .info-row a { font-weight: 600; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-footer-bg);
  color: #C7D6F5;
  padding: 48px 0 32px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 32px;
}
@media (max-width: 700px) {
  .footer-grid { grid-template-columns: 1fr; }
}
.site-footer h4 { color: #fff; font-size: 1rem; margin-bottom: 14px; }
.site-footer a { color: #C7D6F5; text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.site-footer ul { list-style: none; }
.site-footer ul li { padding: 4px 0; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 20px;
  font-size: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
}

/* ---------- Mobile sticky call bar ---------- */
.mobile-call-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 90;
  display: none;
  gap: 1px;
  box-shadow: 0 -4px 16px rgba(15, 33, 103, 0.18);
}
.mobile-call-bar a {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  padding: 16px 8px calc(16px + env(safe-area-inset-bottom));
}
.mobile-call-bar svg { width: 20px; height: 20px; }
.mobile-call-bar .call-now { background: var(--color-accent); color: #fff; }
.mobile-call-bar .get-quote { background: var(--color-primary); color: #fff; }
@media (max-width: 900px) {
  .mobile-call-bar { display: flex; }
}
@media (min-width: 901px) {
  body { padding-bottom: 0; }
}

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: #fff;
  padding: 48px 0;
}
.page-hero h1 { color: #fff; font-size: clamp(1.7rem, 4vw, 2.4rem); }
.page-hero p { color: #DBEAFE; margin-top: 10px; }

/* ---------- Form status + social ---------- */
.hp-field { position: absolute; left: -9999px; top: -9999px; height: 0; overflow: hidden; }

.form-status { margin-top: 14px; font-weight: 600; min-height: 1.2em; }
.form-status.ok { color: #15803D; }
:root[data-theme="dark"] .form-status.ok { color: #4ADE80; }
.form-status.err { color: var(--color-destructive); }
:root[data-theme="dark"] .form-status.err { color: #F87171; }

.ig-link { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; }
.ig-link svg { width: 20px; height: 20px; flex-shrink: 0; }

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.mt-2 { margin-top: 16px; }
.mt-4 { margin-top: 32px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}