:root {
  /* Brand */
  --blue: #1a77f3;
  --sky: #9cddf7;
  --ink: #262626;
  /* Dark theme */
  --night: #05070d;
  --panel: #0c111d;
  --panel-line: #1b2233;
  --navy: #0a1d6b;
  --royal: #1240c4;
  --glow: #3b86ff;
  --text: #f2f5fa;
  --text-dim: #9aa3b5;
  /* Light sections */
  --paper: #ffffff;
  --mist: #f3f4f7;
  --muted: #5f6675;
  --line: #e4e6eb;
  --font: "Century Gothic", CenturyGothic, "Questrial", AppleGothic, sans-serif;
  /* Questrial has no bold, so headings fall back to Poppins, a similar geometric font */
  --font-heading: "Century Gothic", CenturyGothic, "Poppins", AppleGothic, sans-serif;
  --radius: 14px;
  --max: 1200px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--night);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
svg.icon { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; flex: none; }

h1, h2, h3 { font-family: var(--font-heading); font-weight: 600; line-height: 1.12; letter-spacing: -0.02em; margin: 0 0 0.5em; }
h1 { font-size: clamp(2.4rem, 5.6vw, 4.4rem); }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.8rem); }
h3 { font-size: 1.15rem; letter-spacing: -0.01em; }
p { margin: 0 0 1em; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }

.pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: 999px; font-size: 0.9rem;
  color: #fff; background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255, 255, 255, 0.35);
}
.pill svg.icon { width: 16px; height: 16px; }
.label { text-transform: uppercase; letter-spacing: 0.14em; font-size: 0.8rem; color: var(--text-dim); margin: 0 0 12px; }

/* Header: see-through over the hero, dark glass once the page scrolls */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 10;
  border-bottom: 1px solid transparent;
  transition: background 0.25s, border-color 0.25s;
}
.site-header.scrolled { background: rgba(5, 7, 13, 0.82); backdrop-filter: blur(12px); border-bottom-color: rgba(255, 255, 255, 0.08); }
.nav { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; height: 128px; transition: height 0.25s; }
.site-header.scrolled .nav { height: 84px; }
.logo { display: block; justify-self: center; grid-column: 2; grid-row: 1; }
.logo img { width: 104px; height: 104px; transition: width 0.25s, height 0.25s; }
.site-header.scrolled .logo img { width: 64px; height: 64px; }
.nav-links { display: contents; list-style: none; }
.nav-left, .nav-right { display: flex; align-items: center; gap: 32px; list-style: none; margin: 0; padding: 0; grid-row: 1; }
.nav-left { grid-column: 1; }
.nav-right { grid-column: 3; justify-self: end; }
.nav-left a, .nav-right a { color: #fff; text-decoration: none; font-size: 1rem; opacity: 0.9; }
.nav-left a:hover, .nav-right a:hover, .nav-links a[aria-current="page"] { opacity: 1; text-decoration: underline; text-underline-offset: 6px; text-decoration-thickness: 1px; }
.nav-right .btn-light, .nav-right .btn-light:hover { color: var(--night); opacity: 1; text-decoration: none; }
.nav-toggle { display: none; background: none; border: 0; color: #fff; cursor: pointer; padding: 8px; }
.nav-toggle svg.icon { width: 28px; height: 28px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 24px; border-radius: 999px; border: 1px solid var(--blue);
  background: var(--blue); color: #fff; font-family: inherit; font-size: 1rem; font-weight: 600;
  text-decoration: none; cursor: pointer; transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.btn:hover { background: #0f63d6; border-color: #0f63d6; }
.btn-light { background: #fff; border-color: #fff; color: var(--night); }
.btn-light:hover { background: #dfe8ff; border-color: #dfe8ff; }
.btn-ghost { background: transparent; border-color: rgba(255, 255, 255, 0.4); color: #fff; }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.1); border-color: #fff; }
.btn-sm { padding: 9px 18px; font-size: 0.95rem; }
.btn svg.icon { width: 18px; height: 18px; }

/* Home hero: deep blue glow with the air conditioner photo */
.hero {
  position: relative; overflow: hidden; min-height: max(760px, 100vh);
  display: flex; flex-direction: column; justify-content: space-between;
  background: radial-gradient(ellipse 75% 65% at 50% 62%, #2f7bff 0%, var(--royal) 34%, var(--navy) 62%, #040a24 100%);
  text-align: center;
}
.hero-photo {
  /* The unit sits in the top half of the photo, so the photo is pushed down to show it below the buttons */
  position: absolute; left: 50%; bottom: 0; transform: translate(-50%, 30%);
  width: min(840px, 115%); max-width: none; pointer-events: none;
  filter: brightness(0.82) contrast(1.15);
  mix-blend-mode: luminosity;
  -webkit-mask-image: radial-gradient(ellipse 38% 36% at 51% 34%, #000 40%, transparent 100%);
          mask-image: radial-gradient(ellipse 38% 36% at 51% 34%, #000 40%, transparent 100%);
}
.hero::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 120px; background: linear-gradient(transparent, var(--night)); pointer-events: none; }
.hero-inner { position: relative; z-index: 1; padding-top: 172px; }
.hero h1 { max-width: 15em; margin: 22px auto 18px; text-shadow: 0 2px 30px rgba(4, 10, 36, 0.35); }
.hero .lead { max-width: 36em; margin: 0 auto; font-size: 1.15rem; color: rgba(255, 255, 255, 0.85); }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 30px; }
.hero-foot {
  position: relative; z-index: 2; display: flex; justify-content: space-between; align-items: flex-end; gap: 24px;
  padding-bottom: 48px; text-align: left;
}
.hero-trust { display: flex; align-items: flex-start; gap: 12px; margin: 0; max-width: 22em; font-size: 0.95rem; }
.hero-trust .tick { flex: none; width: 24px; height: 24px; border-radius: 50%; background: #fff; color: var(--royal); display: grid; place-items: center; }
.hero-trust .tick svg.icon { width: 14px; height: 14px; stroke-width: 2.6; }
.hero-badges { text-align: left; }
.hero-badges p { margin: 0 0 10px; font-size: 1.05rem; }
.badge-row { display: flex; gap: 10px; flex-wrap: wrap; }
.badge-row span { padding: 8px 14px; border-radius: 8px; border: 1px solid rgba(255, 255, 255, 0.35); font-weight: 700; letter-spacing: 0.08em; font-size: 0.85rem; }

/* Inner page hero */
.page-hero {
  position: relative; overflow: hidden; text-align: center;
  padding: 200px 0 110px;
  background: radial-gradient(ellipse 70% 90% at 50% 100%, #2f7bff 0%, var(--royal) 30%, var(--navy) 60%, #040a24 100%);
}
.page-hero::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 80px; background: linear-gradient(transparent, var(--night)); }
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { margin: 22px auto 14px; max-width: 14em; }
.page-hero p { max-width: 34em; margin: 0 auto; font-size: 1.1rem; color: rgba(255, 255, 255, 0.85); }

/* Sections */
.section { padding: 110px 0; }
.section-light { background: var(--paper); color: var(--ink); }
.section-light .label { color: var(--muted); }
.section-mist { background: var(--mist); color: var(--ink); }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; margin-bottom: 48px; }
.section-head h2 { margin: 0; max-width: 13em; }
.section-head p { margin: 0; max-width: 24em; color: var(--text-dim); font-size: 0.98rem; }
.section-light .section-head p, .section-mist .section-head p { color: var(--muted); }
.section-center { text-align: center; max-width: 36em; margin: 0 auto 56px; }
.section-center p { color: var(--text-dim); }
.section-light .section-center p, .section-mist .section-center p { color: var(--muted); }

/* Statement + stats */
.statement { font-family: var(--font-heading); font-weight: 500; font-size: clamp(1.5rem, 3vw, 2.4rem); line-height: 1.3; letter-spacing: -0.015em; max-width: 24em; margin: 0 0 96px; }
.statement span { color: var(--text-dim); }
.stats { display: grid; grid-template-columns: 1.3fr 1fr; gap: 48px; align-items: end; }
.stats-intro h3 { font-size: 1.4rem; margin-bottom: 8px; }
.stats-intro p { color: var(--text-dim); max-width: 26em; margin: 0; }
.stat-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; list-style: none; margin: 0; padding: 0; }
.stat-list svg.icon { width: 34px; height: 34px; stroke-width: 1.4; margin-bottom: 14px; }
.stat-list strong { display: block; font-weight: 400; font-size: 1.05rem; line-height: 1.35; }

/* Dark service cards */
.service-cards { display: grid; grid-template-columns: 1fr 1.05fr 1fr; gap: 16px; }
.dcard { background: var(--panel); border: 1px solid var(--panel-line); border-radius: var(--radius); padding: 28px; display: flex; flex-direction: column; }
.dcard .chip { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: rgba(26, 119, 243, 0.16); color: var(--glow); margin-bottom: 20px; }
.dcard h3 { font-size: 1.3rem; }
.dcard p { color: var(--text-dim); }
.dcard ul { list-style: none; margin: auto 0 0; padding: 0; border-top: 1px solid var(--panel-line); }
.dcard li { display: flex; justify-content: space-between; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--panel-line); font-size: 0.95rem; }
.dcard li span:last-child { color: var(--text-dim); }
.dcard-feature {
  position: relative; overflow: hidden; min-height: 460px; justify-content: flex-end; text-align: center;
  border-color: rgba(59, 134, 255, 0.6);
  background: radial-gradient(ellipse 90% 70% at 50% 100%, #3b86ff 0%, var(--royal) 45%, #0a1850 100%);
  box-shadow: 0 0 60px rgba(26, 119, 243, 0.25);
}
.dcard-feature img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 38% 40%;
  mix-blend-mode: luminosity; opacity: 0.85;
  -webkit-mask-image: linear-gradient(#000 30%, transparent 68%);
          mask-image: linear-gradient(#000 30%, transparent 68%);
}
.dcard-feature > *:not(img) { position: relative; }
.dcard-feature p { color: rgba(255, 255, 255, 0.85); }
.dcard-feature .btn { align-self: center; }

/* Light feature cards */
.feature-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.lcard { background: var(--mist); border-radius: var(--radius); padding: 22px; min-height: 280px; display: flex; flex-direction: column; justify-content: flex-end; }
.section-mist .lcard { background: var(--paper); }
.lcard .chip { width: 38px; height: 38px; border-radius: 10px; background: var(--night); color: #fff; display: grid; place-items: center; margin-bottom: 14px; }
.lcard .chip svg.icon { width: 20px; height: 20px; }
.lcard h3 { font-size: 1.05rem; margin-bottom: 6px; }
.lcard p { color: var(--muted); font-size: 0.92rem; margin: 0; }
.lcard-blue {
  position: relative; overflow: hidden; color: #fff;
  background: radial-gradient(ellipse 100% 80% at 50% 25%, #4d95ff 0%, var(--royal) 50%, #0a1850 100%);
}
.lcard-blue .big-icon { position: absolute; top: 10%; left: 50%; transform: translateX(-50%); color: rgba(255, 255, 255, 0.92); }
.lcard-blue .big-icon svg.icon { width: 100px; height: 100px; stroke-width: 0.9; filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.35)); }
.lcard-blue .chip { background: rgba(255, 255, 255, 0.16); }
.lcard-blue p { color: rgba(255, 255, 255, 0.8); }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: step; }
.step { position: relative; border-radius: var(--radius); padding: 28px; background: var(--mist); }
.section-mist .step { background: var(--paper); }
.step::before {
  counter-increment: step; content: "0" counter(step);
  display: block; margin-bottom: 40px; font-family: var(--font-heading); font-size: 2.6rem; font-weight: 600; color: var(--blue); letter-spacing: -0.03em;
}
.step p { color: var(--muted); margin: 0; }

/* Testimonial */
.testimonial { display: grid; grid-template-columns: 1fr 2fr; gap: 48px; align-items: start; }
.testimonial blockquote { margin: 0; }
.testimonial .quote { font-family: var(--font-heading); font-size: clamp(1.25rem, 2.2vw, 1.7rem); line-height: 1.4; font-weight: 500; margin-bottom: 24px; }
.testimonial cite { font-style: normal; display: block; font-weight: 600; }
.testimonial cite span { display: block; font-weight: 400; color: var(--text-dim); font-size: 0.9rem; }
.avatar { width: 64px; height: 64px; border-radius: 50%; margin-bottom: 24px; display: grid; place-items: center; background: linear-gradient(135deg, var(--glow), var(--navy)); font-weight: 700; font-size: 1.2rem; }
.sample-note { color: var(--text-dim); font-size: 0.85rem; font-style: italic; }

/* Lists and two-column content */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.tick-list { list-style: none; margin: 0; padding: 0; }
.tick-list li { display: flex; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--panel-line); }
.section-light .tick-list li, .section-mist .tick-list li { border-color: var(--line); }
.tick-list svg.icon { color: var(--glow); margin-top: 2px; }
.tick-list strong { display: block; }
.tick-list span { color: var(--text-dim); }
.section-light .tick-list span, .section-mist .tick-list span { color: var(--muted); }

/* Contact form (dark) */
.form-card { background: var(--panel); border: 1px solid var(--panel-line); border-radius: var(--radius); padding: 32px; }
form { display: grid; gap: 16px; }
label { display: block; margin-bottom: 6px; font-size: 0.92rem; color: var(--text-dim); }
input, select, textarea {
  width: 100%; padding: 13px 14px; font: inherit; font-family: var(--font); color: var(--text);
  background: #070a12; border: 1px solid var(--panel-line); border-radius: 10px;
}
select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--text-dim) 50%), linear-gradient(135deg, var(--text-dim) 50%, transparent 50%); background-position: calc(100% - 20px) 55%, calc(100% - 15px) 55%; background-size: 5px 5px; background-repeat: no-repeat; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--glow); outline-offset: 1px; border-color: var(--glow); }
textarea { min-height: 140px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-status { margin: 0; font-weight: 600; }
.contact-list { list-style: none; margin: 0; padding: 0; }
.contact-list li { display: flex; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--panel-line); }
.contact-list .chip { width: 44px; height: 44px; border-radius: 12px; flex: none; display: grid; place-items: center; background: rgba(26, 119, 243, 0.16); color: var(--glow); }
.contact-list strong { display: block; font-weight: 600; }
.contact-list span, .contact-list a { color: var(--text-dim); text-decoration: none; }
.contact-list a:hover { color: #fff; }

/* Closing call to action, giant wordmark and footer */
.closing { position: relative; overflow: hidden; padding: 120px 0 0; text-align: center; background: var(--night); }
.closing h2 { margin-bottom: 12px; }
.closing p { color: var(--text-dim); max-width: 32em; margin: 0 auto 28px; }
.wordmark {
  font-family: var(--font-heading); font-weight: 700; letter-spacing: -0.06em; line-height: 0.8;
  font-size: clamp(6rem, 25vw, 22rem); margin: 72px 0 -0.12em; white-space: nowrap; user-select: none;
  background: linear-gradient(#fff 30%, rgba(255, 255, 255, 0.15)); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.site-footer {
  position: relative; padding: 56px 0 28px; color: var(--text-dim);
  background: linear-gradient(var(--night), #0a1d6b 75%, #1240c4 140%);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
.footer-grid h3 { font-family: var(--font); font-size: 0.78rem; font-weight: 400; text-transform: uppercase; letter-spacing: 0.14em; color: rgba(255, 255, 255, 0.5); margin-bottom: 16px; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 10px; font-size: 0.95rem; }
.site-footer a { color: #fff; text-decoration: none; opacity: 0.85; }
.site-footer a:hover { opacity: 1; text-decoration: underline; }
.footer-brand img { width: 96px; height: 96px; margin-bottom: 16px; }
.footer-brand p { max-width: 20em; font-size: 0.95rem; }
.footer-bottom { margin-top: 48px; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, 0.12); font-size: 0.88rem; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* Tablet */
@media (max-width: 1024px) {
  .nav { grid-template-columns: 1fr auto; height: 104px; }
  .logo { grid-column: 1; justify-self: start; }
  .logo img { width: 84px; height: 84px; }
  .nav-toggle { display: block; grid-column: 2; }
  .nav-links {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: var(--night); border-bottom: 1px solid rgba(255, 255, 255, 0.08); padding: 8px 24px 24px;
  }
  .nav-links.open { display: block; }
  .nav-left, .nav-right { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-left a, .nav-right a { display: block; padding: 14px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
  .nav-right { justify-self: stretch; }
  .nav-right .btn { display: flex; margin-top: 16px; border-bottom: 0; }
  .service-cards { grid-template-columns: 1fr 1fr; }
  .dcard-feature { grid-column: 1 / -1; order: -1; min-height: 380px; }
  .feature-cards { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: 1fr; }
}

/* Phone */
@media (max-width: 720px) {
  .container { padding: 0 16px; }
  .hero { min-height: 0; }
  .hero-inner { padding-top: 140px; }
  .hero-photo { width: 190%; transform: translate(-50%, 8%); }
  .hero-actions { padding-bottom: 260px; }
  .hero-foot { flex-direction: column; align-items: flex-start; padding-bottom: 40px; }
  .page-hero { padding: 160px 0 80px; }
  .section { padding: 72px 0; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 12px; }
  .statement { margin-bottom: 56px; }
  .stat-list { grid-template-columns: 1fr; gap: 24px; }
  .stat-list li { display: flex; align-items: center; gap: 16px; }
  .stat-list svg.icon { margin: 0; }
  .service-cards, .feature-cards, .steps, .grid-2, .testimonial, .form-row { grid-template-columns: 1fr; }
  .testimonial { gap: 16px; }
  .lcard { min-height: 200px; }
  .lcard-blue { min-height: 300px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}