/* Brand: cassanahvacri.homes — Cassana HVAC (ns: cas46) */
:root {
  --cas46-max: 1120px;
  --cas46-ease: 220ms ease;
  --cas46-cobalt: #3b82f6;
  --cas46-band: linear-gradient(90deg, rgba(59, 130, 246, 0.18), transparent 70%);
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cas46-reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
}

body {
  margin: 0;
  font-family: var(--dna-font-body, "Source Sans 3", system-ui, sans-serif);
  color: var(--dna-ink, #e8eef8);
  background: var(--dna-bg, #0b1220);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3, h4 {
  font-family: var(--dna-font-display, Cabin, system-ui, sans-serif);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.55em;
  font-weight: 650;
}
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }

.cas46-skip {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--dna-accent, var(--cas46-cobalt));
  color: #0b1220;
  padding: 10px 16px;
  z-index: 1000;
}
.cas46-skip:focus { left: 12px; top: 12px; }

.cas46-shell {
  width: min(100% - 2.4rem, var(--cas46-max));
  margin-inline: auto;
}

.cas46-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 44px;
  padding: 0.65rem 1.15rem;
  border-radius: 6px;
  border: 1px solid transparent;
  text-decoration: none;
  font: inherit;
  font-weight: 650;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background var(--cas46-ease), border-color var(--cas46-ease), color var(--cas46-ease);
}
.cas46-btn:focus-visible,
.cas46-burger:focus-visible,
a:focus-visible,
input:focus-visible,
button:focus-visible {
  outline: 2px solid var(--dna-accent, var(--cas46-cobalt));
  outline-offset: 3px;
}
.cas46-btn--solid {
  background: var(--dna-accent, var(--cas46-cobalt));
  color: var(--dna-accent-ink, #0b1220);
}
.cas46-btn--solid:hover { filter: brightness(1.08); }
.cas46-btn--ghost {
  background: transparent;
  border-color: var(--dna-line, #243044);
  color: var(--dna-ink, #e8eef8);
}
.cas46-btn--ghost:hover {
  border-color: var(--dna-accent, var(--cas46-cobalt));
  color: var(--dna-accent-ink, #93c5fd);
}

.cas46-kicker {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dna-accent-ink, #93c5fd);
  margin-bottom: 0.65rem;
}

.cas46-lede {
  color: var(--dna-ink-soft, #a8b4c8);
  max-width: 38rem;
}

/* Header — inline */
.cas46-top {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--dna-bg, #0b1220) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--dna-line, #1e2a3c);
}
.cas46-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 72px;
}
.cas46-brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  margin-right: auto;
}
.cas46-brand img { width: 36px; height: 36px; }
.cas46-brand b { display: block; font-family: var(--dna-font-display, Cabin, sans-serif); font-size: 1.05rem; }
.cas46-brand small { display: block; color: var(--dna-ink-soft, #a8b4c8); font-size: 0.75rem; }
.cas46-links {
  display: flex;
  gap: 1.15rem;
  font-size: 0.92rem;
}
.cas46-links a { text-decoration: none; color: var(--dna-ink-soft, #a8b4c8); }
.cas46-links a[aria-current="page"],
.cas46-links a:hover { color: var(--dna-ink, #e8eef8); }
.cas46-bar-end { display: flex; align-items: center; gap: 0.75rem; }
.cas46-burger {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--dna-line, #243044);
  background: transparent;
  border-radius: 6px;
  padding: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}
.cas46-burger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--dna-ink, #e8eef8);
}
.cas46-drawer {
  display: none;
  flex-direction: column;
  gap: 0.85rem;
  padding-bottom: 1.25rem;
}
.cas46-drawer.is-open { display: flex; }
.cas46-drawer a { text-decoration: none; color: var(--dna-ink, #e8eef8); font-size: 1.05rem; }

@media (max-width: 880px) {
  .cas46-links,
  .cas46-bar-end .cas46-btn { display: none; }
  .cas46-burger { display: inline-flex; }
}

/* Hero bleed */
.cas46-hero.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--dna-line, #1e2a3c);
}
.cas46-hero .hero-visual.hero-photo {
  position: absolute;
  inset: 0;
}
.cas46-hero .hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.cas46-hero .hero-copy {
  color: #f4f7fb;
  text-shadow: 0 1px 18px rgba(0, 0, 0, 0.45);
}
.cas46-hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.15rem);
  max-width: 14ch;
}
.cas46-hero .sub {
  color: #d7e0ee;
  max-width: 34rem;
  font-size: 1.05rem;
}
.cas46-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.4rem;
}
.cas46-flow-label {
  margin-top: 1.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #9eb6d8;
}

/* Horizontal climate bands */
.cas46-band-rail {
  height: 10px;
  background:
    linear-gradient(90deg,
      #1d4ed8 0%,
      #3b82f6 22%,
      #60a5fa 40%,
      #f59e0b 62%,
      #fb923c 78%,
      #1e3a8a 100%);
  opacity: 0.85;
}

.cas46-sec {
  padding: 4.5rem 0;
  border-bottom: 1px solid var(--dna-line, #1e2a3c);
  position: relative;
}
.cas46-sec::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: var(--cas46-band);
  pointer-events: none;
}
.cas46-sec-head { margin-bottom: 2rem; max-width: 40rem; }
.cas46-sec-head h2 { font-size: clamp(1.55rem, 3vw, 2.1rem); }

.cas46-reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}
.cas46-reveal.is-in { opacity: 1; transform: none; }

/* Climate map band section */
.cas46-map-grid {
  display: grid;
  gap: 1rem;
}
.cas46-map-row {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: 1rem;
  align-items: stretch;
  min-height: 4.5rem;
  background: var(--dna-surface, #121a2a);
  border: 1px solid var(--dna-line, #243044);
  border-radius: 4px;
  overflow: hidden;
}
.cas46-map-label {
  display: flex;
  align-items: center;
  justify-content: center;
  writing-mode: horizontal-tb;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: color-mix(in srgb, var(--dna-accent, #3b82f6) 18%, transparent);
  color: var(--dna-accent-ink, #93c5fd);
  padding: 0.75rem;
  text-align: center;
}
.cas46-map-body {
  padding: 1rem 1.15rem;
  color: var(--dna-ink-soft, #a8b4c8);
  font-size: 0.95rem;
}
.cas46-map-body strong {
  display: block;
  color: var(--dna-ink, #e8eef8);
  margin-bottom: 0.25rem;
  font-family: var(--dna-font-display, Cabin, sans-serif);
}

/* Services iconrows + DNA tabs */
.cas46-svc-rows {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.cas46-svc-rows .service-item,
.cas46-svc-rows .r {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.15rem 1.25rem;
  background: var(--dna-surface, #121a2a);
  border: 1px solid var(--dna-line, #243044);
  border-left: 3px solid var(--dna-accent, var(--cas46-cobalt));
  border-radius: 4px;
}
.cas46-svc-ic {
  width: 2.6rem;
  height: 2.6rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--dna-accent, #3b82f6) 16%, transparent);
  border-radius: 6px;
}
.dna-mode-dark .svc-tab {
  background: var(--dna-surface, #121a2a);
  border-color: var(--dna-line, #243044);
  color: var(--dna-ink-soft, #a8b4c8);
  border-radius: 6px;
}
.dna-mode-dark .svc-tab.active {
  background: var(--dna-accent, var(--cas46-cobalt));
  color: var(--dna-accent-ink, #0b1220);
}

/* Season bands / prompts */
.cas46-season {
  display: grid;
  gap: 0.75rem;
}
.cas46-season article {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px dashed var(--dna-line, #243044);
}
.cas46-season article:last-child { border-bottom: 0; }
.cas46-season time {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dna-accent-ink, #93c5fd);
}
.cas46-season h3 {
  font-size: 1.05rem;
  margin-bottom: 0.3rem;
}
.cas46-season p {
  margin: 0;
  color: var(--dna-ink-soft, #a8b4c8);
  font-size: 0.95rem;
}

/* Duct lanes */
.cas46-duct {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.5rem;
  align-items: center;
}
.cas46-duct img {
  width: 100%;
  border-radius: 4px;
  border: 1px solid var(--dna-line, #243044);
}
.cas46-duct ul {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.cas46-duct li {
  padding: 0.85rem 1rem;
  border-left: 2px solid var(--dna-accent, var(--cas46-cobalt));
  background: var(--dna-surface-2, #0f1726);
}
.cas46-duct li strong {
  display: block;
  margin-bottom: 0.2rem;
  font-family: var(--dna-font-display, Cabin, sans-serif);
}

@media (max-width: 800px) {
  .cas46-duct { grid-template-columns: 1fr; }
  .cas46-map-row { grid-template-columns: 1fr; }
  .cas46-season article { grid-template-columns: 1fr; }
}

/* Trust feature tiles */
.cas46-trust {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.cas46-trust article {
  padding: 1.25rem;
  background: var(--dna-surface, #121a2a);
  border: 1px solid var(--dna-line, #243044);
  border-radius: 4px;
}
.cas46-trust h3 {
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  gap: 0.55rem;
}
.cas46-trust p {
  margin: 0;
  color: var(--dna-ink-soft, #a8b4c8);
  font-size: 0.92rem;
}
@media (max-width: 800px) {
  .cas46-trust { grid-template-columns: 1fr; }
}

/* About quote-led */
.cas46-about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}
.cas46-about blockquote {
  margin: 0;
  padding: 1.5rem 0 0;
  border-top: 3px solid var(--dna-accent, var(--cas46-cobalt));
  font-family: var(--dna-font-display, Cabin, sans-serif);
  font-size: clamp(1.25rem, 2.5vw, 1.65rem);
  line-height: 1.35;
}
.cas46-about cite {
  display: block;
  margin-top: 1rem;
  font-style: normal;
  font-size: 0.9rem;
  color: var(--dna-ink-soft, #a8b4c8);
}
.cas46-about img {
  width: 100%;
  border-radius: 4px;
  border: 1px solid var(--dna-line, #243044);
}
@media (max-width: 800px) {
  .cas46-about { grid-template-columns: 1fr; }
}

/* Process steps */
.cas46-steps {
  display: grid;
  gap: 0;
  counter-reset: cas46step;
}
.cas46-steps li {
  counter-increment: cas46step;
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  gap: 1rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--dna-line, #243044);
  position: relative;
}
.cas46-steps li::before {
  content: counter(cas46step, decimal-leading-zero);
  font-family: var(--dna-font-display, Cabin, sans-serif);
  font-weight: 700;
  color: var(--dna-accent-ink, #93c5fd);
  font-size: 1.1rem;
}
.cas46-steps h3 { font-size: 1.05rem; margin-bottom: 0.3rem; }
.cas46-steps p { margin: 0; color: var(--dna-ink-soft, #a8b4c8); }

/* CTA band */
.cas46-cta {
  padding: 3.5rem 0;
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--dna-accent, #3b82f6) 22%, transparent), transparent 55%),
    var(--dna-surface, #121a2a);
  border-bottom: 1px solid var(--dna-line, #1e2a3c);
}
.cas46-cta-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}
.cas46-cta h2 { margin: 0 0 0.4rem; font-size: clamp(1.4rem, 3vw, 1.9rem); }
.cas46-cta p { margin: 0; color: var(--dna-ink-soft, #a8b4c8); max-width: 32rem; }

/* Interior pages */
.cas46-mast {
  padding: 3.5rem 0 2rem;
  border-bottom: 1px solid var(--dna-line, #1e2a3c);
  background: linear-gradient(180deg, color-mix(in srgb, var(--dna-accent, #3b82f6) 10%, transparent), transparent);
}
.cas46-crumb {
  font-size: 0.85rem;
  color: var(--dna-ink-soft, #a8b4c8);
  margin-bottom: 0.75rem;
}
.cas46-crumb a { text-decoration: none; }
.cas46-mast h1 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); max-width: 18ch; }

.cas46-prose {
  padding: 3rem 0 4rem;
  max-width: 42rem;
}
.cas46-prose h2 { margin-top: 2rem; }
.cas46-prose ul {
  list-style: disc;
  padding-left: 1.2rem;
  color: var(--dna-ink-soft, #a8b4c8);
}
.cas46-prose li { margin-bottom: 0.45rem; }

.cas46-svc-page {
  display: grid;
  gap: 1rem;
  padding: 3rem 0 4rem;
}
.cas46-svc-page article {
  padding: 1.35rem 1.4rem;
  background: var(--dna-surface, #121a2a);
  border: 1px solid var(--dna-line, #243044);
  border-left: 3px solid var(--dna-accent, var(--cas46-cobalt));
}
.cas46-svc-page h2,
.cas46-svc-page h3 { font-size: 1.2rem; margin-bottom: 0.4rem; }
.cas46-svc-page p { margin: 0; color: var(--dna-ink-soft, #a8b4c8); }

.cas46-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  padding-bottom: 3rem;
}
.cas46-gallery img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--dna-line, #243044);
}
@media (max-width: 700px) {
  .cas46-gallery { grid-template-columns: 1fr; }
}

/* Contact info-bar + booking timeline */
.contact-page { margin: 2.5rem 0 4rem; }
.dna-contact-info-bar .contact-block {
  background: var(--dna-surface, #121a2a) !important;
  border: 1px solid var(--dna-line, #243044);
  border-radius: 4px;
}
.dna-contact-info-bar .contact-block h3 {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dna-accent-ink, #93c5fd);
  margin: 0 0 0.35rem;
  grid-column: auto;
}
.dna-contact-info-bar .contact-block p { margin: 0; font-size: 0.92rem; }
.dna-contact-info-bar .contact-block:has(.cas46-hours) {
  grid-column: span 2;
}
.cas46-hours {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
}
.cas46-hours li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  font-size: 0.92rem;
}
.cas46-hours li span { white-space: nowrap; }
@media (max-width: 640px) {
  .dna-contact-info-bar .contact-block:has(.cas46-hours) { grid-column: 1 / -1; }
}
.dna-contact-info-bar .contact-block a { text-decoration: none; color: var(--dna-ink, #e8eef8); overflow-wrap: anywhere; word-break: break-word; }

.cas46-bk {
  margin-top: 1.5rem;
  padding: 1.5rem;
  background: var(--dna-surface, #121a2a);
  border: 1px solid var(--dna-line, #243044);
  border-top: 3px solid var(--dna-accent, var(--cas46-cobalt));
  border-radius: 4px;
}
.cas46-bk-kicker {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dna-accent-ink, #93c5fd);
  margin: 0 0 0.5rem;
}
.cas46-bk-title { margin: 0 0 0.4rem; font-size: 1.45rem; }
.cas46-bk-sub { color: var(--dna-ink-soft, #a8b4c8); margin: 0 0 1.25rem; }
.cas46-bk-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  margin: 0 0 1.35rem;
  list-style: none;
}
.cas46-bk-steps li {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.65rem 0.75rem;
  background: var(--dna-surface-2, #0f1726);
  border: 1px solid var(--dna-line, #243044);
  border-radius: 4px;
  font-size: 0.82rem;
  color: var(--dna-ink-soft, #a8b4c8);
}
.cas46-bk-steps li span {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--dna-line, #243044);
  color: var(--dna-ink, #e8eef8);
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}
.cas46-bk-steps li.is-active {
  border-color: var(--dna-accent, var(--cas46-cobalt));
  color: var(--dna-ink, #e8eef8);
}
.cas46-bk-steps li.is-active span,
.cas46-bk-steps li.is-done span {
  background: var(--dna-accent, var(--cas46-cobalt));
  color: var(--dna-accent-ink, #0b1220);
}
.cas46-bk-steps li.is-done { opacity: 0.75; }
.cas46-bk-label {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 0.4rem;
}
.cas46-bk-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  max-width: 100%;
}
.cas46-bk-row input[type="tel"] {
  flex: 1 1 14rem;
  min-width: 0;
  min-height: 44px;
  padding: 0.65rem 0.85rem;
  border-radius: 6px;
  border: 1px solid var(--dna-line, #243044);
  background: var(--dna-bg, #0b1220);
  color: var(--dna-ink, #e8eef8);
  font: inherit;
}
.cas46-bk-error {
  color: #fca5a5;
  font-size: 0.88rem;
  margin: 0.65rem 0 0;
}
.cas46-bk-success {
  margin: 0;
  font-size: 1.1rem;
  font-family: var(--dna-font-display, Cabin, sans-serif);
}
@media (max-width: 700px) {
  .cas46-bk-steps { grid-template-columns: 1fr; }
}

/* Footer columns */
.cas46-footer {
  padding: 3rem 0 2rem;
  background: var(--dna-surface-2, #0a101c);
  border-top: 1px solid var(--dna-line, #1e2a3c);
}
.cas46-foot-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}
.cas46-foot-grid h3 {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dna-accent-ink, #93c5fd);
}
.cas46-foot-grid a { text-decoration: none; color: var(--dna-ink-soft, #a8b4c8); overflow-wrap: anywhere; word-break: break-word; }
.cas46-foot-grid a:hover { color: var(--dna-ink, #e8eef8); }
.cas46-foot-grid ul { display: flex; flex-direction: column; gap: 0.45rem; }
.cas46-legal {
  font-size: 0.82rem;
  color: var(--dna-ink-soft, #a8b4c8);
  border-top: 1px solid var(--dna-line, #1e2a3c);
  padding-top: 1rem;
}
@media (max-width: 800px) {
  .cas46-foot-grid { grid-template-columns: 1fr; }
}