/* ==========================================================================
   Aaron Cone AC & Heating - demo site
   Palette: navy/steel base, warm off-white, burnt orange (heat), ice blue (cool)
   Single fixed light theme (brand decision): dark navy chrome at hero + footer,
   warm off-white body throughout. Sections never invert mid-page.
   ========================================================================== */

:root {
  --navy: #1c2b3a;
  --navy-deep: #141f2b;
  --steel: #46586a;
  --paper: #faf6ef;
  --paper-dim: #f1ebdf;
  --hot: #c2451e;
  --hot-dark: #a4390f;
  --ice: #a9d6e5;
  --ice-deep: #5f93a8;
  --ink: #22303e;
  --line: #d9d2c3;

  --font-display: "Oswald", "Oswald-fallback", "Arial Narrow", "Helvetica Neue", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --header-h: 60px;
  --callbar-h: 56px;
  /* Shape system: one radius scale for the whole page */
  --radius: 6px;
}

/* Metric-matched fallback so the display font swap causes no layout shift */
@font-face {
  font-family: "Oswald-fallback";
  src: local("Arial Narrow"), local("Arial");
  size-adjust: 88%;
  ascent-override: 119%;
  descent-override: 29%;
  line-gap-override: 0%;
}

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

html {
  scroll-padding-top: calc(var(--header-h) + 12px);
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  /* room for the mobile sticky call bar */
  padding-bottom: var(--callbar-h);
}

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

.container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}

.container-narrow { max-width: 560px; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  color: var(--navy);
}

.section { padding: 56px 0; }
.section-alt { background: var(--paper-dim); }

.section-title {
  font-size: clamp(1.7rem, 5vw, 2.4rem);
  margin-bottom: 28px;
  position: relative;
  padding-bottom: 12px;
}
.section-title::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 56px; height: 4px;
  background: var(--hot);
}

.accent-hot { color: var(--hot); }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 1rem;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius);
  padding: 12px 22px;
  cursor: pointer;
  min-height: 48px;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 3px solid var(--ice-deep); outline-offset: 2px; }

.btn-primary {
  background: var(--hot);
  color: #fff;
}
.btn-primary:hover, .btn-primary:focus-visible { background: var(--hot-dark); }

.btn-secondary {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-secondary:hover, .btn-secondary:focus-visible {
  background: var(--navy);
  color: var(--paper);
}

.btn-block { width: 100%; }

/* ---------- Sticky header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--navy);
  border-bottom: 3px solid var(--hot);
}

.header-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.wordmark {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  line-height: 1;
}
.wordmark-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.03em;
  color: var(--paper);
}
.wordmark-sub {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.32em;
  color: var(--ice);
  margin-top: 3px;
}

.header-nav { display: none; }
.header-nav a {
  color: var(--paper);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 6px 4px;
}
.header-nav a:hover, .header-nav a:focus-visible {
  color: var(--ice);
}

.header-call {
  background: var(--hot);
  color: #fff;
  padding: 8px 14px;
  min-height: 42px;
  font-size: 0.95rem;
}
.header-call:hover, .header-call:focus-visible { background: var(--hot-dark); }

/* ---------- Hero ---------- */

.hero {
  background: var(--navy);
  /* restrained diagonal hatch texture */
  background-image: repeating-linear-gradient(
    -45deg,
    rgba(255, 255, 255, 0.025) 0px,
    rgba(255, 255, 255, 0.025) 1px,
    transparent 1px,
    transparent 9px
  );
  color: var(--paper);
  padding: 56px 0 56px;
}

.hero-kicker {
  font-family: var(--font-display);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.8rem;
  color: var(--ice);
  margin-bottom: 14px;
}

.hero-headline {
  color: var(--paper);
  font-size: clamp(2.4rem, 9vw, 4.2rem);
  max-width: 15ch;
  margin-bottom: 16px;
}

.hero-subhead {
  font-size: 1.1rem;
  max-width: 44ch;
  color: #d9dee4;
  margin-bottom: 28px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.hero-ctas .btn-secondary {
  color: var(--paper);
  border-color: var(--ice);
}
.hero-ctas .btn-secondary:hover, .hero-ctas .btn-secondary:focus-visible {
  background: var(--ice);
  color: var(--navy);
}

/* ---------- Trust bar ---------- */

.trust-bar {
  background: var(--navy-deep);
  border-top: 1px solid rgba(169, 214, 229, 0.2);
  padding: 24px 0;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px 12px;
}

.trust-stat {
  text-align: center;
}
.trust-number {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2rem;
  line-height: 1;
  color: var(--hot);
}
.trust-label {
  display: block;
  margin-top: 6px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ice);
}

/* ---------- Services (divided list, not cards) ---------- */

.services-list {
  border-top: 1px solid var(--line);
}

.service-row {
  border-bottom: 1px solid var(--line);
  padding: 28px 0;
}

.service-lead {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}
.service-lead h3 { font-size: 1.25rem; }

.service-row p {
  color: var(--steel);
  max-width: 62ch;
}

.service-icon {
  flex: none;
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}
.service-icon-cool { background: var(--ice); color: var(--navy); }
.service-icon-heat { background: var(--hot); color: #fff; }
.service-icon-new  { background: var(--navy); color: var(--paper); }

.brands { margin-top: 40px; }
.brands-title {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--steel);
  margin-bottom: 14px;
}
.brand-pills {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.brand-pills li {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
  color: var(--navy);
  background: #fff;
  border: 1.5px solid var(--navy);
  border-radius: var(--radius);
  padding: 7px 16px;
}

/* ---------- Reviews ---------- */

.reviews-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.review-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  min-height: 140px;
  display: flex;
  flex-direction: column;
}
.review-card blockquote {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy);
  flex: 1;
}
.review-card figcaption {
  margin-top: 12px;
  font-family: var(--font-display);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  color: var(--steel);
}
.stars {
  color: var(--hot);
  letter-spacing: 3px;
  font-size: 0.95rem;
  margin-bottom: 10px;
}

.review-placeholder {
  border: 2px dashed var(--ice-deep);
  background: rgba(169, 214, 229, 0.12);
}
.review-placeholder blockquote {
  color: var(--ice-deep);
  font-weight: 500;
  font-style: italic;
}
.review-placeholder .stars { color: var(--ice-deep); opacity: 0.5; }
.review-placeholder figcaption { color: var(--ice-deep); }

.reviews-cta {
  margin-top: 28px;
  text-align: center;
}

/* ---------- About ---------- */

.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
.about-copy p { margin-bottom: 14px; max-width: 52ch; }

.photo-placeholder {
  background: var(--navy);
  background-image: repeating-linear-gradient(
    -45deg,
    rgba(169, 214, 229, 0.08) 0px,
    rgba(169, 214, 229, 0.08) 2px,
    transparent 2px,
    transparent 12px
  );
  border: 2px dashed var(--ice-deep);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 20px;
}
.photo-placeholder span {
  font-family: var(--font-display);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.85rem;
  color: var(--ice);
  max-width: 28ch;
}
.photo-about {
  aspect-ratio: 4 / 3;
  width: 100%;
}

/* ---------- Service area ---------- */

.area-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.area-list li {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.95rem;
  color: var(--paper);
  background: var(--steel);
  border-radius: var(--radius);
  padding: 9px 16px;
}
.area-note {
  margin-top: 20px;
  color: var(--steel);
  max-width: 52ch;
}

/* ---------- Request service form (light, framed panel) ---------- */

.request-lede {
  color: var(--steel);
  margin: -12px 0 24px;
}

.request-panel {
  background: #fff;
  border: 2px solid var(--navy);
  border-radius: var(--radius);
  padding: 24px;
}

.form-field { margin-bottom: 16px; }
.form-field label {
  display: block;
  font-family: var(--font-display);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.8rem;
  color: var(--navy);
  margin-bottom: 6px;
}
.form-field input {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1.1rem;
  color: var(--ink);
  background: var(--paper);
  border: 2px solid var(--steel);
  border-radius: var(--radius);
  padding: 12px 14px;
  min-height: 48px;
}
.form-field input:focus-visible {
  outline: 3px solid var(--ice-deep);
  outline-offset: 1px;
  border-color: var(--navy);
}
.form-field input[aria-invalid="true"] { border-color: var(--hot-dark); }

.form-error {
  margin-top: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--hot-dark);
}

.form-promise {
  font-weight: 700;
  color: var(--navy);
  margin: 20px 0 12px;
}

.form-confirm {
  margin-top: 16px;
  background: var(--navy);
  color: var(--paper);
  font-weight: 700;
  border-radius: var(--radius);
  padding: 14px 16px;
  text-align: center;
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--navy-deep);
  color: #c4ccd4;
  padding: 40px 0 24px;
  font-size: 0.95rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(169, 214, 229, 0.15);
}

.footer-wordmark { margin-bottom: 12px; }

.footer-phone {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--paper);
  text-decoration: none;
}
.footer-phone:hover, .footer-phone:focus-visible { color: var(--ice); }

.footer-placeholder {
  display: table;
  margin-top: 10px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ice-deep);
  border: 1px dashed var(--ice-deep);
  border-radius: var(--radius);
  padding: 4px 10px;
}

.footer-credit {
  padding-top: 20px;
  font-size: 0.85rem;
  color: #8795a3;
}
.footer-credit a { color: var(--ice); text-decoration: none; }
.footer-credit a:hover { text-decoration: underline; }

/* ---------- Mobile sticky call bar ---------- */

.mobile-call-bar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 60;
  height: var(--callbar-h);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--hot);
  color: #fff;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 1.1rem;
  box-shadow: 0 -2px 8px rgba(20, 31, 43, 0.35);
}
.mobile-call-bar:active { background: var(--hot-dark); }

/* ---------- Larger screens ---------- */

@media (min-width: 720px) {
  body { padding-bottom: 0; }
  .mobile-call-bar { display: none; }

  .section { padding: 80px 0; }

  .trust-grid { grid-template-columns: repeat(4, 1fr); }
  .about-grid { grid-template-columns: 1.1fr 1fr; align-items: center; }
  .reviews-grid { grid-template-columns: repeat(2, 1fr); }

  /* Service rows: title column left, copy right */
  .service-row {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 32px;
    align-items: start;
  }
  .service-lead {
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 0;
  }
  .service-row p { margin-top: 4px; }

  /* Hero top padding capped at 6rem per desktop */
  .hero { padding: 88px 0 80px; }

  .request-panel { padding: 32px; }
}

@media (min-width: 920px) {
  .header-nav { display: flex; gap: 20px; }
  .reviews-grid { grid-template-columns: repeat(4, 1fr); }
}