:root {
  --ink: #05070b;
  --panel: rgba(12, 16, 24, 0.82);
  --panel-strong: rgba(15, 21, 32, 0.94);
  --line: rgba(210, 224, 245, 0.16);
  --line-bright: rgba(123, 185, 255, 0.34);
  --text: #f5f7fb;
  --muted: #aab4c5;
  --soft: #d7deea;
  --blue: #4fa9ff;
  --blue-strong: #1176d8;
  --metal: #d9dde7;
  --warm: #c9a96a;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 12%, rgba(52, 129, 214, 0.18), transparent 32rem),
    radial-gradient(circle at 82% 20%, rgba(160, 184, 220, 0.09), transparent 26rem),
    linear-gradient(180deg, #030408 0%, #070b12 42%, #040509 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  opacity: 0.52;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 96px 96px;
  mask-image: linear-gradient(to bottom, black, transparent 82%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(circle at 20% 24%, rgba(255, 255, 255, 0.22) 0 1px, transparent 2px),
    radial-gradient(circle at 78% 14%, rgba(255, 255, 255, 0.18) 0 1px, transparent 2px),
    radial-gradient(circle at 62% 58%, rgba(79, 169, 255, 0.16) 0 1px, transparent 2px),
    radial-gradient(circle at 32% 72%, rgba(255, 255, 255, 0.14) 0 1px, transparent 2px);
}

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

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
  background: rgba(4, 6, 11, 0.78);
  backdrop-filter: blur(20px);
}

.nav {
  max-width: var(--max);
  margin: 0 auto;
  min-height: 82px;
  padding: 0 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 178px;
  transform: translateY(-3px);
}

.brand-mark {
  width: 144px;
  height: 64px;
  object-fit: cover;
  object-position: 50% 49%;
  border-radius: var(--radius);
  border: 1px solid rgba(214, 229, 255, 0.18);
  box-shadow: 0 0 28px rgba(79, 169, 255, 0.24);
  filter: none;
}

.brand-copy {
  display: none;
  line-height: 1.05;
}

.brand-copy strong {
  font-size: 1rem;
  letter-spacing: 0.16em;
}

.brand-copy span {
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  font-size: 0.86rem;
  color: var(--soft);
}

.nav-links a {
  padding: 10px 12px;
  border-radius: 999px;
  transition: color 180ms ease, background 180ms ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid rgba(255, 255, 255, 0.82);
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(218, 228, 242, 0.9));
  color: #06101d;
  font-size: 0.86rem;
  font-weight: 700;
  box-shadow: 0 12px 38px rgba(0, 0, 0, 0.24), 0 0 24px rgba(255, 255, 255, 0.08);
  white-space: nowrap;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: #fff;
}

.hero {
  position: relative;
  min-height: calc(100vh - 82px);
  display: grid;
  align-items: center;
  padding: 72px 22px 38px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.42;
  background:
    url("Images/logo.png") center / cover no-repeat;
  filter: saturate(1.06) contrast(1.1);
  transform: scale(1.06);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(3, 4, 8, 0.98) 0%, rgba(3, 5, 10, 0.9) 43%, rgba(3, 5, 10, 0.58) 100%),
    radial-gradient(circle at 78% 44%, rgba(79, 169, 255, 0.18), transparent 32rem),
    linear-gradient(180deg, rgba(3, 4, 8, 0.15), rgba(3, 4, 8, 0.9));
}

.hero-inner {
  width: min(var(--max), 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
}

.hero-copy {
  max-width: 760px;
  padding: 24px 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  margin: 0 0 22px;
  padding: 8px 12px;
  border: 1px solid var(--line-bright);
  border-radius: 999px;
  color: var(--soft);
  background: rgba(5, 10, 18, 0.62);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 18px var(--blue);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
.display {
  font-family: "Playfair Display", Georgia, serif;
  letter-spacing: 0;
}

h1 {
  max-width: 820px;
  margin-bottom: 22px;
  font-size: clamp(3rem, 7vw, 7.1rem);
  line-height: 0.9;
}

.hero p {
  max-width: 710px;
  color: var(--soft);
  font-size: clamp(1.05rem, 1.8vw, 1.3rem);
}

.hero-actions,
.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #fff;
  font-weight: 800;
  letter-spacing: 0.01em;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  border-color: rgba(79, 169, 255, 0.64);
  background: linear-gradient(135deg, #167fe4, #6cbaff 46%, #d7e8ff);
  color: #03070e;
  box-shadow: 0 18px 46px rgba(40, 137, 234, 0.32);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.07);
}

.btn-warm {
  border-color: rgba(255, 255, 255, 0.82);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(218, 228, 242, 0.9));
  color: #06101d;
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.28), 0 0 24px rgba(255, 255, 255, 0.08);
}

.trust-strip {
  width: min(var(--max), calc(100% - 44px));
  margin: -24px auto 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  position: relative;
  z-index: 2;
}

.badge {
  min-height: 72px;
  padding: 14px;
  display: grid;
  align-content: center;
  gap: 3px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(18, 24, 36, 0.9), rgba(8, 12, 19, 0.92));
  box-shadow: 0 16px 44px rgba(0, 0, 0, 0.26);
}

.badge strong {
  color: #fff;
  font-size: 0.88rem;
}

.badge span {
  color: var(--muted);
  font-size: 0.76rem;
}

.section {
  padding: 96px 22px;
}

.section-tight {
  padding-top: 64px;
}

.container {
  width: min(var(--max), 100%);
  margin: 0 auto;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(260px, 0.55fr);
  gap: 34px;
  align-items: end;
  margin-bottom: 36px;
}

.section-heading.center {
  max-width: 820px;
  margin-inline: auto;
  text-align: center;
  display: block;
}

.kicker {
  margin-bottom: 12px;
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2.25rem, 4.3vw, 4.45rem);
  line-height: 1;
}

.section-heading p,
.lead {
  color: var(--soft);
  font-size: 1.04rem;
  line-height: 1.7;
}

.lead + .lead {
  margin-top: 18px;
}

.section-heading h2,
.section-heading.center h2,
.feature-split h2,
.quote-layout h2,
.page-hero h1 {
  margin-bottom: 20px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.card,
.service-card,
.quote-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(21, 27, 40, 0.86), rgba(9, 13, 21, 0.88));
  box-shadow: 0 18px 58px rgba(0, 0, 0, 0.26);
}

.card,
.service-card {
  padding: 26px;
}

.card h3,
.service-card h3 {
  margin-bottom: 14px;
  color: #fff;
  font-size: 1.08rem;
  line-height: 1.28;
}

.card p,
.service-card p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.65;
}

.service-card {
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: "";
  display: block;
  width: 38px;
  height: 2px;
  margin-bottom: 20px;
  background: linear-gradient(90deg, var(--warm), transparent);
}

.feature-band {
  border-block: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(5, 7, 12, 0.94), rgba(15, 24, 36, 0.82)),
    url("Images/after1.jpeg") center / cover no-repeat;
}

.feature-split {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1fr);
  gap: 34px;
  align-items: center;
}

.feature-list {
  display: grid;
  gap: 10px;
}

.feature-list div,
.check-list li {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.055);
  color: var(--soft);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.compare-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel-strong);
  box-shadow: var(--shadow);
}

.compare-frame {
  position: relative;
  height: 410px;
  overflow: hidden;
  background: #05070b;
}

.compare-frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.compare-frame .after {
  clip-path: inset(0 0 0 var(--split, 50%));
}

.compare-frame .divider {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--split, 50%);
  width: 2px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 0 18px rgba(79, 169, 255, 0.82);
  transform: translateX(-1px);
  z-index: 3;
}

.compare-frame .divider::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 44px;
  transform: translateX(-50%);
}

.compare-frame input {
  position: absolute;
  inset: 0;
  width: 100%;
  opacity: 0;
  cursor: ew-resize;
  z-index: 4;
}

.label {
  position: absolute;
  top: 14px;
  z-index: 2;
  padding: 6px 9px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  color: #fff;
  background: rgba(0, 0, 0, 0.48);
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.label.before {
  left: 14px;
}

.label.after-label {
  right: 14px;
}

.compare-body {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px;
}

.compare-body strong {
  font-size: 0.96rem;
}

.compare-body span {
  color: var(--muted);
  font-size: 0.78rem;
}

.page-hero {
  position: relative;
  padding: 86px 22px 64px;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.42;
  background:
    url("Images/logo.png") center / cover no-repeat;
  filter: saturate(1.06) contrast(1.1);
  transform: scale(1.06);
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(3, 4, 8, 0.98) 0%, rgba(3, 5, 10, 0.9) 43%, rgba(3, 5, 10, 0.58) 100%),
    radial-gradient(circle at 78% 44%, rgba(79, 169, 255, 0.18), transparent 32rem),
    linear-gradient(180deg, rgba(3, 4, 8, 0.15), rgba(3, 4, 8, 0.9));
}

.page-hero .container {
  max-width: var(--max);
}

.page-hero h1 {
  max-width: 880px;
}

.page-hero p {
  max-width: 720px;
  color: var(--soft);
  font-size: 1.12rem;
}

.process {
  counter-reset: step;
}

.process .card {
  position: relative;
}

.process .card::before {
  counter-increment: step;
  content: "0" counter(step);
  display: block;
  margin-bottom: 22px;
  color: var(--warm);
  font-weight: 900;
  letter-spacing: 0.2em;
}

.quote-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.contact-phone {
  margin-bottom: 24px !important;
}

.quote-card {
  padding: 28px;
}

.quote-card form {
  display: grid;
  gap: 14px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--soft);
  font-size: 0.86rem;
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 13px;
  color: #fff;
  background: rgba(0, 0, 0, 0.28);
  font: inherit;
  outline: none;
}

textarea {
  min-height: 130px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--line-bright);
  box-shadow: 0 0 0 3px rgba(79, 169, 255, 0.12);
}

.fine-print {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.form-status {
  display: none;
  margin: 0;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--soft);
  background: rgba(255, 255, 255, 0.055);
  font-size: 0.92rem;
  line-height: 1.45;
}

.form-status.visible {
  display: block;
}

.form-status.success {
  border-color: rgba(79, 169, 255, 0.38);
  color: #eaf5ff;
  background: rgba(79, 169, 255, 0.12);
}

.form-status.error {
  border-color: rgba(255, 255, 255, 0.28);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.quote-card button[disabled] {
  cursor: wait;
  opacity: 0.72;
  transform: none;
}

.check-list {
  padding: 0;
  margin: 20px 0 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.site-footer {
  padding: 52px 22px 26px;
  border-top: 1px solid var(--line);
  background: #030408;
}

.footer-grid {
  width: min(var(--max), 100%);
  margin: 0 auto 34px;
  display: grid;
  grid-template-columns: minmax(240px, 1.1fr) repeat(3, minmax(140px, 0.5fr));
  gap: 28px;
}

.footer-logo {
  width: 178px;
  height: 96px;
  object-fit: cover;
  object-position: 50% 49%;
  border-radius: var(--radius);
  border: 1px solid rgba(214, 229, 255, 0.18);
  margin-bottom: 16px;
  box-shadow: 0 0 34px rgba(79, 169, 255, 0.18);
  filter: none;
}

.footer-grid h3 {
  margin: 0 0 12px;
  font-size: 0.86rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.footer-grid p,
.footer-grid a {
  color: var(--muted);
}

.footer-grid a {
  display: block;
  margin: 7px 0;
}

.vent-credit {
  display: flex !important;
  align-items: center;
  gap: 10px;
  width: fit-content;
  margin: 0 !important;
  padding: 10px 12px;
  border: 1px solid rgba(123, 185, 255, 0.2);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(79, 169, 255, 0.1), rgba(255, 255, 255, 0.035));
  color: var(--metal) !important;
  font-size: 0.95rem;
  font-weight: 800;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

.vent-credit img {
  width: 42px;
  height: 42px;
  object-fit: cover;
  border-radius: 7px;
  box-shadow: 0 0 18px rgba(79, 169, 255, 0.18);
}

.footer-bottom {
  width: min(var(--max), 100%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
  color: #8c98ab;
  font-size: 0.86rem;
}

[data-reveal] {
  opacity: 1;
  transform: none;
  transition: opacity 700ms ease, transform 700ms ease;
}

html.reveal-ready [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
}

html.reveal-ready [data-reveal].visible {
  opacity: 1;
  transform: none;
}

html.reveal-ready .hero [data-reveal],
html.reveal-ready .page-hero [data-reveal] {
  opacity: 1;
  transform: none;
}

@media (max-width: 1020px) {
  .nav-links {
    position: fixed;
    top: 82px;
    left: 14px;
    right: 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(4, 7, 12, 0.96);
    box-shadow: var(--shadow);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    border-radius: var(--radius);
  }

  .menu-toggle {
    display: block;
  }

  .nav-cta {
    display: none;
  }

  .hero-inner,
  .section-heading,
  .feature-split,
  .quote-layout {
    grid-template-columns: 1fr;
  }

  .trust-strip,
  .grid-3,
  .gallery-grid,
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 680px) {
  .nav {
    min-height: 72px;
    padding-inline: 16px;
  }

  .brand-mark {
    width: 128px;
    height: 58px;
    object-position: 50% 49%;
  }

  .brand-copy strong {
    font-size: 0.86rem;
  }

  .brand-copy span {
    font-size: 0.62rem;
  }

  .nav-links {
    top: 72px;
  }

  .hero {
    min-height: auto;
    padding-top: max(28px, env(safe-area-inset-top));
  }

  .hero-inner {
    gap: 34px;
  }

  .hero::before {
    opacity: 0.34;
    background:
      url("Images/logo.png") center / cover no-repeat;
  }

  .hero::after {
    background:
      linear-gradient(180deg, rgba(3, 4, 8, 0.88) 0%, rgba(3, 5, 10, 0.72) 44%, rgba(3, 4, 8, 0.94) 100%),
      radial-gradient(circle at 55% 38%, rgba(79, 169, 255, 0.16), transparent 18rem);
  }

  h1 {
    font-size: clamp(2.7rem, 12.2vw, 3.7rem);
    line-height: 0.94;
  }

  .hero-copy {
    padding-top: 56px;
  }

  .hero-actions,
  .section-actions {
    align-items: stretch;
  }

  .hero-actions .btn,
  .section-actions .btn {
    width: 100%;
  }

  .trust-strip,
  .grid-3,
  .grid-2,
  .gallery-grid,
  .footer-grid,
  .form-row {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 72px 18px;
  }

  .compare-frame {
    height: 360px;
    touch-action: pan-y;
  }

  .compare-frame .divider {
    touch-action: none;
  }

  .compare-frame input {
    pointer-events: none;
  }

  .page-hero {
    padding: 62px 18px 48px;
  }

  .page-hero::before {
    opacity: 0.34;
    background:
      url("Images/logo.png") center / cover no-repeat;
  }

  .page-hero::after {
    background:
      linear-gradient(180deg, rgba(3, 4, 8, 0.88) 0%, rgba(3, 5, 10, 0.72) 44%, rgba(3, 4, 8, 0.94) 100%),
      radial-gradient(circle at 55% 38%, rgba(79, 169, 255, 0.16), transparent 18rem);
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .vent-credit {
    width: 100%;
    max-width: 320px;
  }
}