/* ============================================================
   MERIDIAN HVAC — Design System (styles.css)
   Single stylesheet for every page. Pages must NOT define
   their own CSS; extend this file only.
   See DESIGN.md for the component class catalog.
   ============================================================ */

/* ---------- 1. Tokens ---------- */
:root {
  /* Brand palette — "frost & furnace" */
  --navy-950: #06161f;   /* deepest — footer, dark bands */
  --navy-900: #0b2537;   /* primary dark — headings, dark UI */
  --navy-800: #123650;   /* hover dark, borders on dark */
  --navy-700: #1a4a6b;   /* steel blue */
  --blue-500: #2e9bd6;   /* frost accent — links, small highlights */
  --blue-100: #e3f1fa;   /* frost tint bg */
  --accent-600: #d3540a; /* furnace — CTA hover */
  --accent-500: #e8600c; /* furnace — primary CTA */
  --accent-100: #fdeee2; /* furnace tint bg */
  --teal-600: #0e8a6d;   /* checkmarks, positive */
  --red-500: #d64545;    /* "won't do" list markers */

  --ink: #12293a;        /* body strong */
  --body: #43586b;       /* body copy */
  --muted: #6b7f8f;      /* captions, meta */
  --line: #dde6ed;       /* hairline borders */
  --bg: #ffffff;
  --bg-alt: #f4f7fa;     /* alternating section band */
  --star: #f5a623;       /* review stars */

  --radius-sm: 10px;
  --radius: 14px;
  --radius-lg: 20px;

  --shadow-sm: 0 1px 2px rgba(11, 37, 55, .06), 0 2px 8px rgba(11, 37, 55, .05);
  --shadow: 0 2px 6px rgba(11, 37, 55, .07), 0 12px 28px rgba(11, 37, 55, .09);
  --shadow-lg: 0 8px 18px rgba(11, 37, 55, .10), 0 28px 56px rgba(11, 37, 55, .14);

  --font-display: "Manrope", system-ui, -apple-system, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;

  --header-h: 72px;
  --container-w: 1160px;
}

/* ---------- 2. Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.65;
  color: var(--body);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: var(--navy-700); text-decoration: none; }
a:hover { color: var(--navy-900); }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--navy-900);
  line-height: 1.15;
  margin: 0 0 .5em;
  letter-spacing: -0.015em;
}
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; cursor: pointer; }
:focus-visible { outline: 3px solid rgba(46, 155, 214, .55); outline-offset: 2px; border-radius: 4px; }
::selection { background: var(--blue-100); color: var(--navy-900); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ---------- 3. Layout ---------- */
.container { width: 100%; max-width: var(--container-w); margin-inline: auto; padding-inline: 22px; }
.section { padding: 88px 0; }
.section--alt { background: var(--bg-alt); }
.section--dark { background: var(--navy-950); color: #c8d6e2; }
.section--dark h1, .section--dark h2, .section--dark h3 { color: #fff; }
.section--tight { padding: 64px 0; }
.section-head { max-width: 720px; margin-bottom: 44px; }
.section-head--center { margin-inline: auto; text-align: center; }

.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 960px) {
  .section { padding: 64px 0; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .section { padding: 52px 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .grid { gap: 16px; }
}

/* ---------- 4. Typography helpers ---------- */
.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 12.5px;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent-500);
  margin-bottom: 14px;
}
.section--dark .eyebrow { color: var(--blue-500); }
.display {
  font-size: clamp(2.4rem, 5.2vw, 3.9rem);
  font-weight: 800;
  letter-spacing: -0.025em;
}
.h2 { font-size: clamp(1.75rem, 3.4vw, 2.5rem); font-weight: 800; letter-spacing: -0.02em; }
.h3 { font-size: 1.28rem; font-weight: 700; }
.lead { font-size: 1.15rem; line-height: 1.7; color: var(--body); }
.small { font-size: .875rem; color: var(--muted); }
.strong { color: var(--ink); font-weight: 600; }

/* ---------- 5. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 26px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1;
  text-align: center;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--accent { background: var(--accent-500); color: #fff; box-shadow: 0 6px 16px rgba(232, 96, 12, .28); }
.btn--accent:hover { background: var(--accent-600); color: #fff; box-shadow: 0 8px 20px rgba(232, 96, 12, .34); }
.btn--dark { background: var(--navy-900); color: #fff; }
.btn--dark:hover { background: var(--navy-800); color: #fff; }
.btn--ghost { background: transparent; color: var(--navy-900); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--navy-700); color: var(--navy-900); }
.btn--light { background: #fff; color: var(--navy-900); }
.btn--light:hover { background: var(--blue-100); color: var(--navy-900); }
.btn--outline-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .35); }
.btn--outline-light:hover { border-color: #fff; color: #fff; }
.btn--block { width: 100%; }
.btn--sm { padding: 11px 18px; font-size: .92rem; }
.btn .btn__icon { width: 18px; height: 18px; flex: none; }

/* ---------- 6. Topbar ---------- */
.topbar {
  background: var(--navy-950);
  color: #a9bfd0;
  font-size: .82rem;
  padding: 9px 0;
}
.topbar .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.topbar__items { display: flex; gap: 18px; flex-wrap: wrap; }
.topbar__item { display: inline-flex; align-items: center; gap: 7px; }
.topbar__item svg { width: 13px; height: 13px; color: var(--blue-500); }
.topbar a { color: #fff; font-weight: 600; }
@media (max-width: 640px) { .topbar__item--hide-m { display: none; } }

/* ---------- 7. Header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .2s ease;
}
.site-header.is-scrolled { box-shadow: var(--shadow-sm); }
.site-header .container { display: flex; align-items: center; gap: 26px; height: var(--header-h); }
.logo { display: inline-flex; align-items: center; gap: 11px; flex: none; }
.logo__mark { width: 40px; height: 40px; flex: none; }
.logo__name { font-family: var(--font-display); font-weight: 800; font-size: 1.22rem; color: var(--navy-900); letter-spacing: -0.02em; line-height: 1.05; }
.logo__name span { display: block; font-size: .68rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); }
.nav { display: flex; gap: 4px; margin-left: auto; }
.nav__link {
  padding: 9px 13px;
  border-radius: 8px;
  font-weight: 600;
  font-size: .95rem;
  color: var(--ink);
}
.nav__link:hover { background: var(--bg-alt); color: var(--navy-900); }
.nav__link.is-active { color: var(--accent-500); }
.header-cta { display: flex; align-items: center; gap: 12px; }
.header-phone { display: flex; flex-direction: column; align-items: flex-end; line-height: 1.2; }
.header-phone a { font-family: var(--font-display); font-weight: 800; font-size: 1.08rem; color: var(--navy-900); }
.header-phone small { font-size: .72rem; color: var(--teal-600); font-weight: 600; letter-spacing: .04em; }
.burger { display: none; background: none; border: 0; padding: 10px; margin-left: auto; }
.burger svg { width: 26px; height: 26px; color: var(--navy-900); }

@media (max-width: 1080px) {
  .nav, .header-cta { display: none; }
  .burger { display: block; }
}

/* Mobile drawer */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 80;
  background: var(--navy-950);
  color: #fff;
  padding: 22px;
  flex-direction: column;
  overflow-y: auto;
}
.mobile-nav.is-open { display: flex; }
.mobile-nav__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 30px; }
.mobile-nav__close { background: none; border: 0; color: #fff; padding: 8px; }
.mobile-nav__close svg { width: 28px; height: 28px; }
.mobile-nav a.mnav-link {
  display: block;
  padding: 15px 4px;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  border-bottom: 1px solid var(--navy-800);
}
.mobile-nav .btn { margin-top: 14px; }
.mobile-nav__meta { margin-top: 26px; font-size: .85rem; color: #8fa8bb; }

/* ---------- 8. Trust bar ---------- */
.trustbar { border-bottom: 1px solid var(--line); background: #fff; }
.trustbar .container { display: flex; align-items: center; justify-content: center; gap: 34px; flex-wrap: wrap; padding-block: 13px; }
.trustbar__item { display: inline-flex; align-items: center; gap: 8px; font-size: .88rem; font-weight: 600; color: var(--ink); }
.trustbar__item svg { width: 16px; height: 16px; color: var(--teal-600); }
.trustbar__item .stars { font-size: .95rem; }
@media (max-width: 640px) { .trustbar .container { gap: 14px 22px; } }

.stars { color: var(--star); letter-spacing: 2px; font-size: 1rem; }

/* ---------- 9. Hero ---------- */
.hero { position: relative; overflow: hidden; background: linear-gradient(180deg, #fff 0%, var(--blue-100) 140%); }
.hero .container {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items: center;
  padding-block: 74px 84px;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 15px;
  font-size: .82rem;
  font-weight: 700;
  color: var(--navy-900);
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
}
.hero__badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--teal-600); box-shadow: 0 0 0 4px rgba(14, 138, 109, .18); }
.hero__title { font-size: clamp(2.5rem, 5.4vw, 4rem); font-weight: 800; letter-spacing: -0.028em; margin-bottom: 18px; }
.hero__title em { font-style: normal; color: var(--accent-500); }
.hero__sub { font-size: 1.13rem; max-width: 34rem; margin-bottom: 28px; }
.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 22px; }
.hero__meta { display: flex; align-items: center; gap: 10px; font-size: .9rem; color: var(--ink); font-weight: 600; }
.hero__meta svg { width: 17px; height: 17px; color: var(--teal-600); }
.hero__media { position: relative; }
.hero__media img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); aspect-ratio: 4 / 3.4; object-fit: cover; width: 100%; }
.hero__card {
  position: absolute;
  left: -26px;
  bottom: 26px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 16px 20px;
  max-width: 250px;
}
.hero__card .stars { display: block; margin-bottom: 4px; }
.hero__card strong { display: block; font-family: var(--font-display); color: var(--navy-900); font-size: 1.02rem; }
.hero__card small { color: var(--muted); font-size: .8rem; }
@media (max-width: 960px) {
  .hero .container { grid-template-columns: 1fr; gap: 40px; padding-block: 52px 64px; }
  .hero__card { left: 16px; bottom: 16px; }
}

/* Interior page hero (service pages) — replaces .hero */
.page-hero { background: linear-gradient(180deg, #fff 0%, var(--blue-100) 160%); padding: 44px 0 58px; }
.page-hero .display { font-size: clamp(2rem, 4.2vw, 3.1rem); margin-bottom: 14px; }
.page-hero .lead { max-width: 46rem; }
.page-hero__cta { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 26px; }
.page-hero__price {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  margin-top: 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  box-shadow: var(--shadow-sm);
}
.page-hero__price b { font-family: var(--font-display); font-size: 1.5rem; color: var(--navy-900); }
.page-hero__price span { font-size: .85rem; color: var(--muted); }

/* Breadcrumbs */
.crumbs { display: flex; align-items: center; gap: 8px; font-size: .82rem; color: var(--muted); margin-bottom: 22px; flex-wrap: wrap; }
.crumbs a { color: var(--navy-700); font-weight: 600; }
.crumbs__sep { color: var(--line); }
.crumbs [aria-current] { color: var(--muted); }

/* ---------- 10. Credentials strip ---------- */
.creds { background: var(--navy-900); color: #c8d6e2; padding: 26px 0; }
.creds .container { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; }
.cred { display: flex; align-items: center; gap: 11px; font-size: .86rem; font-weight: 600; line-height: 1.35; }
.cred svg { width: 26px; height: 26px; flex: none; color: var(--blue-500); }
@media (max-width: 960px) { .creds .container { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 640px) { .creds .container { grid-template-columns: repeat(2, 1fr); } }

/* ---------- 11. Brand chips ---------- */
.brands { padding: 34px 0; border-bottom: 1px solid var(--line); }
.brands p { text-align: center; font-size: .85rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 18px; }
.brands__row { display: flex; justify-content: center; gap: 12px 30px; flex-wrap: wrap; }
.brand-chip { font-family: var(--font-display); font-weight: 800; font-size: 1.02rem; color: #9fb2c0; letter-spacing: .01em; }

/* ---------- 12. Service cards ---------- */
.svc-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.svc-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: #c6d5e0; }
.svc-card__img { aspect-ratio: 16 / 9; object-fit: cover; width: 100%; }
.svc-card__body { display: flex; flex-direction: column; flex: 1; padding: 24px; }
.svc-card__num { font-family: var(--font-display); font-size: .76rem; font-weight: 800; letter-spacing: .16em; color: var(--blue-500); text-transform: uppercase; margin-bottom: 8px; }
.svc-card__title { font-size: 1.22rem; font-weight: 700; margin-bottom: 8px; }
.svc-card__text { font-size: .94rem; margin-bottom: 18px; flex: 1; }
.svc-card__foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; border-top: 1px solid var(--line); padding-top: 16px; }
.svc-card__price { font-family: var(--font-display); font-weight: 800; font-size: 1.35rem; color: var(--navy-900); }
.svc-card__price small { display: block; font-size: .72rem; font-weight: 600; color: var(--muted); letter-spacing: .04em; }
.svc-card__note { font-size: .78rem; color: var(--teal-600); font-weight: 600; text-align: right; max-width: 140px; line-height: 1.35; }

/* ---------- 13. Steps ---------- */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.step { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 26px 26px; }
.step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--navy-900);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  margin-bottom: 18px;
}
.step h3 { font-size: 1.15rem; margin-bottom: 8px; }
.step p { font-size: .94rem; margin: 0; }
.section--dark .step { background: var(--navy-900); border-color: var(--navy-800); }
.section--dark .step p { color: #a9bfd0; }
@media (max-width: 800px) { .steps { grid-template-columns: 1fr; } }

/* ---------- 14. Work gallery ---------- */
.work-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); }
.work-card img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }
.work-card__body { padding: 16px 18px 18px; }
.work-card__loc { display: inline-block; font-size: .74rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--accent-500); margin-bottom: 6px; }
.work-card__body p { font-size: .88rem; margin: 0; }

/* ---------- 15. Why us / stats / reasons ---------- */
.why { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: start; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 30px; }
.stat { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; text-align: center; }
.stat b { display: block; font-family: var(--font-display); font-size: 2rem; font-weight: 800; color: var(--navy-900); line-height: 1.1; }
.stat span { font-size: .8rem; color: var(--muted); font-weight: 600; }
.reasons { display: grid; gap: 14px; }
.reason { display: flex; gap: 16px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; }
.reason__num { font-family: var(--font-display); font-weight: 800; color: var(--blue-500); font-size: .9rem; padding-top: 3px; flex: none; }
.reason h3 { font-size: 1.05rem; margin-bottom: 4px; }
.reason p { font-size: .92rem; margin: 0; }
@media (max-width: 900px) { .why { grid-template-columns: 1fr; gap: 36px; } }

/* ---------- 16. Reviews ---------- */
.reviews-summary {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 22px;
  box-shadow: var(--shadow-sm);
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 34px;
}
.review-card { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-sm); }
.review-card .stars { margin-bottom: 10px; }
.review-card__text { font-size: .94rem; color: var(--ink); flex: 1; }
.review-card__meta { display: flex; align-items: center; gap: 12px; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.review-card__avatar {
  width: 40px; height: 40px; flex: none;
  border-radius: 50%;
  background: var(--navy-900);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 800; font-size: .95rem;
}
.review-card__meta strong { display: block; font-size: .9rem; color: var(--navy-900); }
.review-card__meta small { font-size: .78rem; color: var(--muted); }

/* ---------- 17. Free second opinion ---------- */
.op-card { position: relative; display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px 28px; box-shadow: var(--shadow-sm); }
.op-card--featured { border-color: var(--accent-500); box-shadow: 0 10px 30px rgba(232, 96, 12, .14); }
.op-card__flag {
  position: absolute;
  top: -13px; left: 24px;
  background: var(--accent-500);
  color: #fff;
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 999px;
}
.op-card__tag { font-size: .78rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--teal-600); margin-bottom: 10px; }
.op-card h3 { font-size: 1.25rem; }
.op-card ul { margin: 6px 0 20px; display: grid; gap: 8px; }
.op-card .btn { margin-top: auto; }
.op-card__case { background: var(--bg-alt); border-left: 3px solid var(--blue-500); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 14px 16px; font-size: .85rem; margin-bottom: 20px; }
.op-card__case b { color: var(--navy-900); }

/* ---------- 18. Check / X lists ---------- */
.check-li, .x-li { display: grid; gap: 12px; }
.check-li li, .x-li li { position: relative; padding-left: 34px; font-size: .98rem; color: var(--ink); }
.check-li li::before, .x-li li::before {
  content: "";
  position: absolute;
  left: 0; top: 1px;
  width: 22px; height: 22px;
  border-radius: 50%;
  background-repeat: no-repeat;
  background-position: center;
  background-size: 12px;
}
.check-li li::before {
  background-color: rgba(14, 138, 109, .12);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230e8a6d' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E");
}
.x-li li::before {
  background-color: rgba(214, 69, 69, .10);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23d64545' stroke-width='3.2' stroke-linecap='round'%3E%3Cpath d='M18 6L6 18M6 6l12 12'/%3E%3C/svg%3E");
}
.section--dark .check-li li, .section--dark .x-li li { color: #d7e3ec; }

/* Numbered inclusion list (service pages) */
.num-list { counter-reset: nl; display: grid; gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.num-list li { counter-increment: nl; display: flex; gap: 18px; padding: 18px 22px; border-bottom: 1px solid var(--line); font-size: .96rem; color: var(--ink); }
.num-list li:last-child { border-bottom: 0; }
.num-list li::before { content: counter(nl, decimal-leading-zero); font-family: var(--font-display); font-weight: 800; color: var(--blue-500); flex: none; }

/* Callout box (e.g. "Important" notes on service pages) */
.callout { background: var(--accent-100); border: 1px solid #f5cfae; border-radius: var(--radius); padding: 26px 28px; }
.callout h3 { color: var(--accent-600); font-size: 1rem; text-transform: uppercase; letter-spacing: .08em; }
.callout p { font-size: .95rem; color: var(--ink); }
.callout p:last-child { margin-bottom: 0; }

/* ---------- 19. Areas ---------- */
.areas__chips { display: flex; flex-wrap: wrap; gap: 10px; }
.area-chip {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 18px;
  font-size: .9rem;
  font-weight: 600;
  color: var(--ink);
  transition: border-color .15s ease, color .15s ease;
}
.area-chip:hover { border-color: var(--navy-700); color: var(--navy-900); }
.areas__note { margin-top: 24px; background: #fff; border: 1px dashed #c6d5e0; border-radius: var(--radius); padding: 18px 22px; font-size: .92rem; }
.section--dark .area-chip { background: var(--navy-900); border-color: var(--navy-800); color: #d7e3ec; }
.section--dark .areas__note { background: var(--navy-900); border-color: var(--navy-800); }

/* ---------- 20. FAQ ---------- */
.faq { max-width: 820px; }
.faq details { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); margin-bottom: 12px; overflow: hidden; }
.faq summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 19px 22px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--navy-900);
  cursor: pointer;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "";
  width: 22px; height: 22px; flex: none;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232e9bd6' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") center / contain no-repeat;
  transition: transform .2s ease;
}
.faq details[open] summary::after { transform: rotate(180deg); }
.faq details[open] summary { border-bottom: 1px solid var(--line); }
.faq details .faq__a { padding: 18px 22px 20px; font-size: .95rem; }
.faq details .faq__a p:last-child { margin: 0; }

/* ---------- 21. Guarantee band ---------- */
.guarantee { background: linear-gradient(120deg, var(--navy-900), var(--navy-700)); border-radius: var(--radius-lg); padding: 46px 48px; color: #d7e3ec; display: grid; grid-template-columns: 1.3fr .7fr; gap: 36px; align-items: center; }
.guarantee h2 { color: #fff; font-size: clamp(1.5rem, 3vw, 2.1rem); }
.guarantee .check-li { gap: 10px; }
.guarantee .check-li li { color: #eaf2f8; }
@media (max-width: 800px) { .guarantee { grid-template-columns: 1fr; padding: 34px 28px; } }

/* ---------- 22. CTA band ---------- */
.cta-band { background: var(--navy-950); color: #c8d6e2; text-align: center; }
.cta-band h2 { color: #fff; font-size: clamp(1.8rem, 3.6vw, 2.6rem); }
.cta-band .lead { color: #a9bfd0; max-width: 40rem; margin-inline: auto; }
.cta-band__btns { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; margin-top: 28px; }
.cta-band__meta { margin-top: 20px; font-size: .85rem; color: #8fa8bb; }

/* ---------- 23. Footer ---------- */
.site-footer { background: var(--navy-950); color: #8fa8bb; font-size: .9rem; border-top: 1px solid var(--navy-800); }
.site-footer a { color: #c8d6e2; }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding: 60px 0 40px; }
.footer-grid h4 { color: #fff; font-size: .82rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 16px; }
.footer-grid ul { display: grid; gap: 10px; }
.footer-brand p { margin: 14px 0; max-width: 30rem; }
.footer-brand .logo__name { color: #fff; }
.footer-brand .logo__name span { color: #8fa8bb; }
.footer-contact { display: grid; gap: 8px; margin-top: 8px; }
.footer-contact a { font-weight: 600; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; border-top: 1px solid var(--navy-800); padding: 20px 0; font-size: .8rem; color: #6d8497; }
.footer-credit a { color: #9fb2c0; font-weight: 600; border-bottom: 1px dotted #546b7d; }
.footer-credit a:hover { color: #fff; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }

/* ---------- 24. Sticky mobile action bar ---------- */
.mobile-bar {
  display: none;
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 70;
  background: #fff;
  border-top: 1px solid var(--line);
  box-shadow: 0 -6px 20px rgba(11, 37, 55, .10);
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  gap: 10px;
}
.mobile-bar .btn { flex: 1; padding: 14px 10px; font-size: .92rem; }
@media (max-width: 1080px) {
  .mobile-bar { display: flex; }
  body { padding-bottom: 74px; }
}

/* ---------- 25. Callback modal ---------- */
.modal { display: none; position: fixed; inset: 0; z-index: 90; }
.modal.is-open { display: block; }
.modal__overlay { position: absolute; inset: 0; background: rgba(6, 22, 31, .62); backdrop-filter: blur(3px); }
.modal__box {
  position: relative;
  max-width: 460px;
  margin: 8vh auto 0;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 34px 32px 30px;
  animation: modal-in .22s ease;
}
@keyframes modal-in { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.modal__close { position: absolute; top: 14px; right: 14px; background: var(--bg-alt); border: 0; border-radius: 50%; width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; }
.modal__close svg { width: 16px; height: 16px; color: var(--ink); }
.modal h3 { font-size: 1.4rem; margin-bottom: 6px; }
.modal .small { margin-bottom: 20px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: .82rem; font-weight: 700; color: var(--navy-900); margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font: inherit;
  font-size: .95rem;
  color: var(--ink);
  background: #fff;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(46, 155, 214, .18);
}
.modal__success { display: none; text-align: center; padding: 26px 6px 10px; }
.modal__success.is-visible { display: block; }
.modal__success .ok {
  width: 62px; height: 62px; margin: 0 auto 16px;
  border-radius: 50%;
  background: rgba(14, 138, 109, .12);
  display: flex; align-items: center; justify-content: center;
}
.modal__success .ok svg { width: 30px; height: 30px; color: var(--teal-600); }

/* ---------- 26. Estimate form block (lead capture) ---------- */
.estimate { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 38px; }
.estimate-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.estimate-grid .field--full { grid-column: 1 / -1; }
@media (max-width: 640px) { .estimate { padding: 26px 20px; } .estimate-grid { grid-template-columns: 1fr; } }

/* ---------- 27. Utility ---------- */
.center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.maxw-720 { max-width: 720px; }
.hide-m { }
@media (max-width: 640px) { .hide-m { display: none !important; } }
.skip-link { position: absolute; left: -9999px; top: 0; background: var(--navy-900); color: #fff; padding: 10px 16px; z-index: 100; border-radius: 0 0 8px 0; }
.skip-link:focus { left: 0; color: #fff; }