:root {
  --blue: #0067b1;
  --blue-dark: #004f8a;
  --green: #70bf44;
  --green-dark: #3c9a31;
  --ink: #1d2733;
  --muted: #6b7787;
  --line: #e6edf4;
  --soft: #f4f8fb;
  --white: #ffffff;
  --shadow: 0 18px 50px rgba(17, 47, 78, .12);
  --radius: 22px;
  --speed: 260ms ease;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { border: 0; cursor: pointer; }
.container { width: min(1200px, calc(100% - 40px)); margin-inline: auto; }
.section { padding: 88px 0; }

.topbar {
  background: var(--blue-dark);
  color: #fff;
  font-size: .88rem;
}
.topbar-inner {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.topbar a { margin-left: 18px; font-weight: 700; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #fff;
  box-shadow: 0 8px 24px rgba(0,0,0,.05);
}
.header-main {
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 48px;
  height: 48px;
  flex: 0 0 48px;
  display: grid;
  place-items: center;
  background: none;
  box-shadow: none;
  border-radius: 0;
  overflow: visible;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}
.brand strong { display: block; font-size: 1.15rem; letter-spacing: -.03em; }
.brand small { display: block; margin-top: -3px; color: var(--muted); font-size: .78rem; font-weight: 700; }
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a {
  padding: 10px 13px;
  border-radius: 999px;
  color: #435064;
  font-weight: 800;
  font-size: .94rem;
  transition: background var(--speed), color var(--speed), transform var(--speed);
}
.main-nav a:hover, .main-nav a.active { background: #eef7ff; color: var(--blue); }
.nav-button { background: var(--green) !important; color: #fff !important; }
.nav-button:hover { transform: translateY(-2px); }
.menu-toggle { display: none; width: 44px; height: 44px; border-radius: 14px; background: var(--soft); }
.menu-toggle span { display: block; width: 22px; height: 2px; margin: 5px auto; border-radius: 3px; background: var(--ink); transition: var(--speed); }
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }


.hero { position: relative; min-height: 640px; overflow: hidden; background: linear-gradient(105deg, #f7fbff 0%, #eef7ff 45%, #e8f8ed 100%); }
.hero::before { content: ""; position: absolute; inset: auto -180px -250px auto; width: 620px; height: 620px; border-radius: 50%; background: rgba(112,191,68,.2); }
.hero-slider { position: relative; min-height: 640px; }
.hero-slide { position: absolute; inset: 0; opacity: 0; pointer-events: none; transform: translateX(36px) scale(1.015); transition: opacity 1600ms ease, transform 1800ms ease; }
.hero-slide.active { opacity: 1; pointer-events: auto; transform: translateX(0) scale(1); }
.hero-slide.active .hero-visual { animation: slowHeroFloat 9s ease-in-out infinite; }
@keyframes slowHeroFloat { 0%, 100% { transform: translateY(0) scale(1); } 50% { transform: translateY(-12px) scale(1.025); } }
.hero-grid { min-height: 640px; display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.tag { display: inline-flex; align-items: center; gap: 8px; padding: 8px 13px; border-radius: 999px; color: var(--blue); background: #eaf5ff; border: 1px solid #d4ebff; font-weight: 900; font-size: .82rem; margin-bottom: 18px; }
.hero h1, .hero h2, .section-head h2, .process-card h2, .contact-copy h2 { letter-spacing: -.055em; line-height: 1.04; }
.hero h1, .hero h2 { max-width: 700px; font-size: clamp(2.6rem, 5.8vw, 5.4rem); margin-bottom: 22px; }
.hero p { max-width: 650px; color: var(--muted); font-size: 1.12rem; margin-bottom: 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 13px 22px; border-radius: 999px; font-weight: 950; transition: transform var(--speed), box-shadow var(--speed); }
.btn:hover { transform: translateY(-3px); }
.btn.primary { color: #fff; background: linear-gradient(135deg, var(--blue), var(--blue-dark)); box-shadow: 0 18px 32px rgba(0,103,177,.25); }
.btn.outline { color: var(--blue); background: #fff; border: 1px solid #d9e8f4; box-shadow: 0 14px 32px rgba(17,47,78,.08); }
.btn.full { width: 100%; }
.hero-visual { position: relative; min-height: 430px; display: grid; place-items: center; }
.ac-device { position: relative; width: min(460px, 92%); height: 145px; border-radius: 32px; background: linear-gradient(180deg, #fff, #e9f4fb); box-shadow: 0 34px 90px rgba(0,103,177,.22); transform: perspective(900px) rotateX(6deg) rotateY(-8deg); }
.ac-device::before { content: ""; position: absolute; left: 36px; right: 36px; bottom: 30px; height: 16px; border-radius: 999px; background: rgba(0,103,177,.16); }
.ac-device::after { content: ""; position: absolute; right: 36px; top: 34px; width: 70px; height: 18px; border-radius: 999px; background: linear-gradient(90deg, var(--green), var(--blue)); }
.ac-device span { position: absolute; bottom: -72px; width: 12px; height: 58px; border-radius: 999px; background: rgba(0,103,177,.18); animation: air 1.9s ease-in-out infinite; }
.ac-device span:nth-child(1) { left: 36%; }
.ac-device span:nth-child(2) { left: 50%; animation-delay: .2s; }
.ac-device span:nth-child(3) { left: 64%; animation-delay: .4s; }
@keyframes air { 50% { transform: translateY(22px); opacity: .48; } }
.wind { position: absolute; border: 1px solid rgba(0,103,177,.13); border-radius: 50%; animation: pulse 3.4s ease-in-out infinite; }
.wind-1 { width: 180px; height: 180px; }
.wind-2 { width: 280px; height: 280px; animation-delay: .7s; }
@keyframes pulse { from { transform: scale(.7); opacity: .7; } to { transform: scale(1.8); opacity: 0; } }
.hero-card-mini { position: absolute; right: 18px; bottom: 50px; padding: 18px 20px; border-radius: 18px; background: #fff; box-shadow: var(--shadow); }
.hero-card-mini b, .hero-card-mini small { display: block; }
.hero-card-mini small { color: var(--muted); }
.service-meter { width: 240px; height: 240px; display: grid; place-items: center; text-align: center; border-radius: 50%; background: #fff; box-shadow: var(--shadow); }
.service-meter strong { display: block; color: var(--blue); font-size: 4rem; line-height: 1; }
.service-meter span { color: var(--muted); font-weight: 900; }
.round-unit { position: absolute; width: 360px; height: 360px; border-radius: 50%; background: radial-gradient(circle at 35% 35%, #fff, #cfeeff 52%, #9edb77 100%); z-index: -1; }
.slider-dots { position: absolute; left: 50%; bottom: 24px; transform: translateX(-50%); display: flex; gap: 10px; }
.slider-dots button { width: 12px; height: 12px; border-radius: 999px; background: rgba(0,103,177,.25); transition: var(--speed); }
.slider-dots button.active { width: 36px; background: var(--blue); }

.benefits { background: #fff; border-block: 1px solid var(--line); }
.benefit-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.benefit-item { min-height: 92px; display: flex; align-items: center; justify-content: center; gap: 12px; padding: 18px; border-right: 1px solid var(--line); font-weight: 900; text-align: center; }
.benefit-item:last-child { border-right: 0; }
.benefit-item span { font-size: 1.55rem; }

.section-head { max-width: 760px; margin: 0 auto 38px; text-align: center; }
.section-head.compact { margin-bottom: 28px; }
.section-head.left { text-align: left; margin-inline: 0; }
.section-head h2, .process-card h2, .contact-copy h2 { font-size: clamp(2rem, 4vw, 3.35rem); margin-bottom: 15px; }
.section-head p, .process-card p, .contact-copy p { color: var(--muted); font-size: 1.03rem; }
.services { background: #fff; }
.filter-tabs { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
.filter-tabs button { padding: 10px 15px; border-radius: 999px; background: var(--soft); color: #526174; font-weight: 900; transition: var(--speed); }
.filter-tabs button.active, .filter-tabs button:hover { color: #fff; background: var(--blue); }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.product-card { position: relative; padding: 22px; border: 1px solid var(--line); border-radius: 24px; background: #fff; box-shadow: 0 12px 38px rgba(17,47,78,.07); transition: transform var(--speed), box-shadow var(--speed), border-color var(--speed); }
.product-card:hover { transform: translateY(-8px); border-color: #cfe3f2; box-shadow: var(--shadow); }
.product-badge { position: absolute; top: 16px; left: 16px; z-index: 2; padding: 6px 10px; border-radius: 999px; color: #fff; background: var(--blue); font-size: .75rem; font-weight: 950; }
.product-badge.green { background: var(--green-dark); }
.product-visual { height: 190px; border-radius: 20px; margin-bottom: 20px; background: linear-gradient(145deg, #f6fbff, #eaf5ff); position: relative; overflow: hidden; }
.product-visual::before { content: ""; position: absolute; left: 50%; top: 48%; width: 70%; height: 54px; transform: translate(-50%, -50%); border-radius: 18px; background: linear-gradient(180deg, #fff, #e7f3fb); box-shadow: 0 18px 44px rgba(0,103,177,.16); }
.product-visual::after { content: ""; position: absolute; right: 27%; top: 42%; width: 42px; height: 9px; border-radius: 99px; background: linear-gradient(90deg, var(--green), var(--blue)); }
.clean-ac { background: linear-gradient(145deg, #f5fff2, #edf9ff); }
.install-ac { background: linear-gradient(145deg, #fffaf2, #ecf7ff); }
.cassette-ac::before { height: 100px; width: 52%; border-radius: 24px; }
.gas-ac { background: linear-gradient(145deg, #f9fbff, #f0fff6); }
.vrf-ac::before { height: 120px; width: 45%; border-radius: 12px; }
.product-card h3 { font-size: 1.22rem; margin-bottom: 10px; }
.product-card p { color: var(--muted); margin-bottom: 0; }
.product-card.hidden { display: none; }

.brand-section { background: linear-gradient(135deg, #f7fbff, #f4fbf2); }
.brand-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 48px; align-items: center; }
.brand-cloud { display: flex; flex-wrap: wrap; gap: 12px; }
.brand-cloud span { padding: 13px 17px; border-radius: 999px; background: #fff; border: 1px solid var(--line); box-shadow: 0 10px 28px rgba(17,47,78,.06); color: #3d4a5b; font-weight: 950; }

.areas { background: #fff; }
.area-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.area-grid span { padding: 10px 14px; border-radius: 12px; background: var(--soft); color: #536174; font-weight: 850; }
.area-grid span:hover { color: var(--blue); background: #eaf5ff; }

.seo-copy { background: linear-gradient(135deg, #f9fcff, #f3fbf1); }
.seo-card { padding: 36px; border-radius: 28px; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); }
.seo-card h2 { font-size: clamp(1.8rem, 3.2vw, 2.75rem); line-height: 1.08; letter-spacing: -.045em; margin-bottom: 16px; }
.seo-card p { color: var(--muted); margin-bottom: 14px; max-width: 980px; }
.seo-card small { display: block; color: #64748b; font-weight: 800; }

.process { background: #f7fbff; }
.process-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 42px; align-items: center; }
.process-card { padding: 36px; border-radius: 28px; color: #fff; background: linear-gradient(135deg, var(--blue), var(--blue-dark)); box-shadow: 0 26px 70px rgba(0,103,177,.23); }
.process-card .tag { color: #fff; background: rgba(255,255,255,.14); border-color: rgba(255,255,255,.25); }
.process-card p { color: rgba(255,255,255,.8); margin-bottom: 26px; }
.steps { display: grid; gap: 16px; }
.step { display: grid; grid-template-columns: auto 1fr; gap: 16px; padding: 24px; border-radius: 22px; background: #fff; border: 1px solid var(--line); box-shadow: 0 14px 34px rgba(17,47,78,.07); }
.step b { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: var(--green); }
.step p { color: var(--muted); }

.faq { background: #fff; }
.faq-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 42px; align-items: start; }
.accordion { display: grid; gap: 14px; }
.accordion-item { border: 1px solid var(--line); border-radius: 18px; overflow: hidden; background: #fff; box-shadow: 0 10px 28px rgba(17,47,78,.06); }
.accordion-item button { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 14px; padding: 18px 20px; color: var(--ink); background: #fff; text-align: left; font-weight: 950; }
.accordion-item button span { transition: var(--speed); }
.accordion-item p { max-height: 0; overflow: hidden; color: var(--muted); padding: 0 20px; transition: max-height 300ms ease, padding 300ms ease; }
.accordion-item.active p { max-height: 170px; padding: 0 20px 20px; }
.accordion-item.active button span { transform: rotate(45deg); }

.contact { background: linear-gradient(135deg, #f7fbff, #eef8fb); }
.contact-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 42px; align-items: start; }
.contact-list { display: grid; gap: 12px; margin-top: 26px; }
.contact-list a { padding: 15px 16px; border-radius: 16px; background: #fff; border: 1px solid var(--line); box-shadow: 0 10px 26px rgba(17,47,78,.06); font-weight: 900; }
.service-form { padding: 30px; border-radius: 28px; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); }
.form-row { margin-bottom: 16px; }
.form-row.two { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
label { display: grid; gap: 8px; color: #2e3a49; font-weight: 850; }
input, select, textarea { width: 100%; padding: 14px 15px; border: 1px solid #dbe5ef; border-radius: 14px; background: #fff; color: var(--ink); outline: none; transition: var(--speed); }
input:focus, select:focus, textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 4px rgba(0,103,177,.1); }
.service-form small { display: block; margin-top: 12px; text-align: center; color: var(--muted); }

.footer { color: #d9e4ef; background: #07192b; padding: 62px 0 22px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr repeat(3, 1fr); gap: 28px; padding-bottom: 34px; }
.footer a { display: block; margin-top: 9px; color: #aebdca; }
.footer a:hover { color: #fff; }
.footer p, .footer small { color: #aebdca; }
.footer-brand { margin-bottom: 14px; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; border-top: 1px solid rgba(255,255,255,.1); padding-top: 20px; color: #9caec0; }
#backTop, .float-call, .float-whatsapp { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: linear-gradient(135deg, var(--blue), var(--green)); box-shadow: 0 16px 34px rgba(0,103,177,.25); }
.float-call, .float-whatsapp { position: fixed; right: 20px; z-index: 60; }
.float-call { bottom: 82px; }
.float-whatsapp { bottom: 22px; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 18px); z-index: 80; width: min(430px, calc(100% - 40px)); padding: 15px 18px; border-radius: 16px; color: #fff; background: #07192b; box-shadow: 0 20px 50px rgba(0,0,0,.2); opacity: 0; pointer-events: none; transition: var(--speed); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 680ms ease, transform 680ms ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 110ms; }
.delay-2 { transition-delay: 220ms; }

@media (max-width: 980px) {
  .menu-toggle { display: block; }
  .main-nav { position: fixed; inset: 120px 0 auto 0; display: grid; gap: 8px; padding: 20px; background: rgba(255,255,255,.97); border-top: 1px solid var(--line); box-shadow: 0 20px 50px rgba(17,47,78,.12); transform: translateY(-135%); transition: transform 300ms ease; }
  .main-nav.active { transform: translateY(0); }
  .main-nav a { text-align: center; }
  .hero-grid, .brand-layout, .process-grid, .faq-grid, .contact-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .benefit-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 680px) {
  .container { width: min(100% - 28px, 1200px); }
  .topbar-inner { flex-direction: column; align-items: flex-start; padding: 10px 0; }
  .topbar a { margin-left: 0; margin-right: 14px; }
  .header-main { height: 72px; }
  .main-nav { inset: 115px 0 auto 0; }
  .hero, .hero-slider, .hero-grid { min-height: 760px; }
  .hero h1, .hero h2 { font-size: clamp(2.35rem, 12vw, 3.6rem); }
  .hero-actions, .btn { width: 100%; }
  .hero-visual { min-height: 330px; }
  .product-grid, .benefit-grid, .footer-grid, .form-row.two { grid-template-columns: 1fr; }
  .benefit-item { border-right: 0; border-bottom: 1px solid var(--line); }
  .service-form, .process-card { padding: 22px; border-radius: 22px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
}