/* Squeaky Clean Duct Cleaning. Mostly white, navy text, teal brand, one orange accent for buttons. */
:root {
  --navy: #0f2a44;
  --ink: #142b42;
  --muted: #4d6073;
  --line: #dfe5eb;
  --soft: #f3f6f8;
  --teal: #0b7a83;
  --teal-dark: #075e66;
  --accent: #f7841e;      /* buttons only; navy text on it */
  --accent-dark: #e06f0a;
  --radius: 8px;
  --max: 1140px;
  --font: "Barlow", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body { margin: 0; font-family: var(--font); font-size: 1.0625rem; color: var(--ink); background: #fff; line-height: 1.55; padding-bottom: 68px; }
img { max-width: 100%; display: block; }
a { color: var(--teal-dark); }
a:hover { color: var(--navy); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
h1, h2, h3 { color: var(--navy); line-height: 1.15; margin: 0 0 .5rem; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.1rem); font-weight: 800; }
h3 { font-size: 1.15rem; font-weight: 700; }
p { margin: 0 0 .75rem; }
s { color: inherit; opacity: .75; }

.skip { position: absolute; left: -999px; top: 0; background: #000; color: #fff; padding: .5rem 1rem; z-index: 1000; }
.skip:focus { left: 0; }
.wrap { width: min(100% - 2rem, var(--max)); margin-inline: auto; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: .6rem 1.2rem;
  border-radius: var(--radius); border: 2px solid transparent; font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; }
.btn-lg { min-height: 54px; padding: .75rem 1.5rem; font-size: 1.1rem; }
.btn-block { display: flex; width: 100%; }
.btn-accent { background: var(--accent); color: var(--navy); }
.btn-accent:hover { background: var(--accent-dark); color: var(--navy); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.75); }
.btn-ghost:hover { background: #fff; color: var(--navy); }
.btn-navy { background: var(--navy); color: #fff; }
.btn-navy:hover { background: #1b3d5f; color: #fff; }

/* Top bar */
.topbar { background: var(--navy); color: #fff; font-size: .95rem; }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; min-height: 40px; gap: 1rem; }
.topbar-note { display: none; color: #c9d6e2; }
.topbar-phone { color: #fff; text-decoration: none; margin-inline: auto; }
.topbar-phone strong { font-size: 1.1rem; letter-spacing: .01em; }
.topbar-phone:hover { color: var(--accent); }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: #fff; border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; gap: 1rem; min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: .6rem; text-decoration: none; }
.brand-mark { width: 40px; height: 40px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; font-weight: 800; font-size: 1.2rem; color: var(--navy); }
.brand-sub { font-size: .78rem; font-weight: 600; color: var(--teal); letter-spacing: .04em; }
.nav { display: none; margin-left: auto; gap: 1.5rem; }
.nav a { color: var(--ink); text-decoration: none; font-weight: 600; }
.nav a:hover { color: var(--teal); }
.header-call { display: none; margin-left: auto; min-height: 42px; padding: .45rem .9rem; }

/* Hero */
.hero { position: relative; isolation: isolate; color: #fff; background: var(--navy); overflow: hidden; }
.hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 65%; z-index: -2; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(90deg, rgba(10,25,41,.86) 0%, rgba(10,25,41,.62) 55%, rgba(10,25,41,.35) 100%); }
.hero h1, .lead, .kicker { text-shadow: 0 1px 12px rgba(0,0,0,.45); }
.hero-grid { display: grid; gap: 1.75rem; padding: 2.25rem 0 2rem; }
.kicker { font-weight: 700; color: #ffd2a6; text-transform: uppercase; letter-spacing: .08em; font-size: .85rem; margin-bottom: .6rem; }
.hero h1 { color: #fff; font-size: clamp(2.1rem, 5.2vw, 3.4rem); font-weight: 800; letter-spacing: -.01em; margin-bottom: .8rem; }
.lead { font-size: 1.2rem; color: #e3ebf2; max-width: 34rem; }
.lead strong { color: #fff; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.25rem; }

/* Deal card */
.deal { background: #fff; color: var(--ink); border-radius: 10px; padding: 1.25rem; border-top: 6px solid var(--accent); box-shadow: 0 12px 32px rgba(0,0,0,.28); align-self: center; }
.deal-label { font-size: .9rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; margin-bottom: .4rem; }
.deal-badge { display: inline-block; background: var(--navy); color: #fff; padding: .1rem .45rem; border-radius: 4px; margin-right: .35rem; }
.deal-title { font-size: 1.3rem; font-weight: 800; margin-bottom: .6rem; }
.deal-title span { font-weight: 600; color: var(--muted); font-size: 1rem; }
.deal-price { display: flex; align-items: baseline; flex-wrap: wrap; gap: .35rem .75rem; margin-bottom: .5rem; }
.price-now { font-size: 2.8rem; font-weight: 800; color: var(--navy); line-height: 1; }
.price-reg { color: var(--muted); font-size: 1.05rem; }
.price-off { background: #e6f4f1; color: var(--teal-dark); font-weight: 800; padding: .15rem .5rem; border-radius: 4px; }
.deal-rating { margin-bottom: .2rem; }
.deal-rating .stars { margin-right: .3rem; vertical-align: -1px; }
.deal-bought { font-weight: 700; color: var(--teal-dark); margin-bottom: .6rem; }
.deal-alt { font-size: .98rem; border-top: 1px solid var(--line); padding-top: .6rem; margin-bottom: .9rem; }
.deal-fine { font-size: .85rem; color: var(--muted); margin: .7rem 0 0; }

/* Stars: 5 glyphs, filled to --rating out of 5 */
.stars { --rating: 5; display: inline-block; font-size: 1.15rem; line-height: 1; letter-spacing: 2px;
  background: linear-gradient(90deg, #f5a623 calc(var(--rating) / 5 * 100%), #cfd6dd 0); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stars::before { content: "★★★★★"; }

/* Trust bar */
.trust { border-bottom: 1px solid var(--line); background: #fff; }
.trust-row { display: grid; grid-template-columns: repeat(2, 1fr); }
.trust-row p { margin: 0; padding: .9rem .5rem; text-align: center; color: var(--muted); font-size: .95rem; line-height: 1.25; }
.trust-row strong { display: block; color: var(--navy); font-size: 1.35rem; font-weight: 800; }

/* Sections */
.section { padding: 2.75rem 0; }
.section-soft { background: var(--soft); }
.section-lead { color: var(--muted); max-width: 44rem; margin-bottom: 1.4rem; }
.fine { font-size: .88rem; color: var(--muted); }

/* Prices */
.price-layout { display: grid; gap: 1.25rem; align-items: start; }
.table-wrap { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.price-table { width: 100%; border-collapse: collapse; }
.price-table th, .price-table td { padding: .7rem .8rem; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.price-table tbody tr:last-child > * { border-bottom: 0; }
.price-table thead th { background: var(--navy); color: #fff; font-size: .9rem; font-weight: 700; }
.price-table tbody th { font-weight: 600; color: var(--navy); }
.price-table small { display: block; font-weight: 400; color: var(--muted); font-size: .88rem; }
.price-table td { white-space: nowrap; }
.price-table td[colspan] { white-space: normal; }
.p-strong { font-weight: 800; font-size: 1.2rem; color: var(--navy); }
.example { background: var(--soft); border-left: 5px solid var(--teal); border-radius: var(--radius); padding: 1.1rem 1.2rem; }
.example-head { font-size: .85rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--teal-dark); margin-bottom: .2rem; }
.example-sum { font-weight: 700; color: var(--navy); font-size: 1.15rem; margin-bottom: .2rem; }
.example-math { font-size: 1.1rem; }
.example-math strong { font-size: 1.4rem; color: var(--navy); }
.example .fine { margin: .7rem 0 0; }

/* Service cards */
.cards { display: grid; gap: 1.25rem; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; }
.card-img img { width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; }
.card-body { padding: 1rem 1.1rem 1.2rem; display: flex; flex-direction: column; flex: 1; }
.card-body p { color: var(--muted); }
.card-link { margin-top: auto; font-weight: 700; color: var(--teal-dark); }

/* Process */
.process-grid { display: grid; gap: 1.5rem; align-items: start; }
.steps { list-style: none; margin: 0; padding: 0; counter-reset: s; display: grid; gap: .9rem; }
.steps li { counter-increment: s; position: relative; padding-left: 3rem; }
.steps li::before { content: counter(s); position: absolute; left: 0; top: 0; width: 2.1rem; height: 2.1rem; border-radius: 50%;
  background: var(--navy); color: #fff; font-weight: 800; display: grid; place-items: center; }
.steps h3 { margin-bottom: .15rem; }
.steps p { color: var(--muted); margin: 0; }
.process-photos { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.process-photos figure { margin: 0; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem; display: grid; place-items: center; }
.process-photos img { max-height: 360px; width: auto; height: auto; object-fit: contain; }
.process-photos figure[hidden] { display: none; }
.process-photos:not(:has(figure:not([hidden]))) { display: none; }

/* Gallery */
.gallery { list-style: none; margin: 1rem 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.gallery li { aspect-ratio: 1; overflow: hidden; border-radius: 4px; background: #d9dee3; }
.gallery .shot-big { grid-column: span 2; grid-row: span 2; }
.gallery a, .gallery img { display: block; width: 100%; height: 100%; }
.gallery img { object-fit: cover; transition: transform .2s; }
.gallery a:hover img { transform: scale(1.03); }

/* Reviews */
.reviews { display: grid; gap: 1rem; }
.review { margin: 0; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem 1.2rem; }
.review p { font-size: 1.1rem; color: var(--navy); }
.review footer { color: var(--muted); font-size: .92rem; font-weight: 600; }
#reviews .section-lead { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }

/* Booking */
.embed-slot { background: #fff; border: 2px dashed #b9c6d2; border-radius: var(--radius); min-height: 180px; display: grid; place-items: center; padding: 1.5rem; text-align: center; }
.embed-slot iframe { width: 100%; min-height: 600px; border: 0; }
.embed-placeholder { margin: 0; }

/* Area + FAQ */
.area-faq { display: grid; gap: 2rem; }
.faq { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; padding: .8rem 0; font-weight: 700; color: var(--navy); list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-weight: 800; color: var(--teal); }
.faq[open] summary::after { content: "–"; }
.faq p { color: var(--muted); }

/* Footer */
.site-footer { background: var(--navy); color: #c9d6e2; padding: 1.75rem 0; font-size: .95rem; }
.site-footer strong { color: #fff; }
.site-footer a { color: #fff; }
.footer-inner { display: grid; gap: 1rem; }

/* Mobile sticky bar */
.mobile-bar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; display: grid; grid-template-columns: 1fr 1fr; gap: .5rem;
  padding: .5rem; background: #fff; border-top: 1px solid var(--line); box-shadow: 0 -4px 14px rgba(0,0,0,.08); }
.mobile-bar .btn { min-height: 48px; font-size: 1.1rem; }

/* Lightbox */
.lb { border: 0; padding: 0; background: transparent; max-width: 100vw; max-height: 100vh; width: 100vw; height: 100vh; }
.lb::backdrop { background: rgba(5,15,25,.92); }
.lb[open] { display: grid; place-items: center; }
.lb-img { max-width: 94vw; max-height: 86vh; object-fit: contain; border-radius: 4px; }
.lb-btn { position: fixed; background: rgba(255,255,255,.12); color: #fff; border: 0; width: 48px; height: 48px; border-radius: 50%; font-size: 2rem; line-height: 1; cursor: pointer; }
.lb-btn:hover { background: rgba(255,255,255,.25); }
.lb-close { top: 12px; right: 12px; }
.lb-prev { left: 12px; top: 50%; transform: translateY(-50%); }
.lb-next { right: 12px; top: 50%; transform: translateY(-50%); }
.lb-count { position: fixed; bottom: 14px; left: 0; right: 0; text-align: center; color: #fff; margin: 0; }
body.lb-open { overflow: hidden; }

/* Phones: compact side-by-side service cards */
@media (max-width: 699px) {
  .card { display: grid; grid-template-columns: 120px 1fr; }
  .card-img img { height: 100%; aspect-ratio: auto; }
  .card-body { padding: .8rem .9rem .9rem; }
  .card-body p { font-size: .98rem; margin-bottom: .5rem; }
  .process-photos img { max-height: 220px; }
  .section { padding: 2.25rem 0; }
}

/* Larger screens */
@media (min-width: 700px) {
  .topbar-note { display: inline; }
  .header-call { display: inline-flex; }
  .topbar-phone { margin-inline: 0; }
  .trust-row { grid-template-columns: repeat(4, 1fr); }
  .trust-row p + p { border-left: 1px solid var(--line); }
  .cards, .reviews { grid-template-columns: repeat(3, 1fr); }
  .gallery { grid-template-columns: repeat(4, 1fr); }
  .gallery li { aspect-ratio: 4 / 3; }
  .footer-inner { grid-template-columns: 1.2fr 1fr 1fr; }
}
@media (min-width: 940px) {
  body { padding-bottom: 0; }
  .mobile-bar { display: none; }
  .nav { display: flex; }
  .header-call { margin-left: 1rem; font-size: 1.05rem; }
  .hero-grid { grid-template-columns: 1.15fr .85fr; gap: 3rem; padding: 4rem 0; min-height: 520px; align-items: center; }
  .price-layout { grid-template-columns: 1.6fr 1fr; gap: 2rem; }
  .process-grid { grid-template-columns: 1.3fr 1fr; gap: 3rem; }
  .process-grid:not(:has(figure:not([hidden]))) { grid-template-columns: 1fr; }
  .process-photos { position: sticky; top: 90px; }
  .area-faq { grid-template-columns: 1fr 1.4fr; gap: 3rem; }
  .section { padding: 3.5rem 0; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .gallery img { transition: none; } }