/* =============================================
   HIDROAIR Energy Saving – Estilos
   Paleta: #0769BD (azul), #E7E7E7 (nav), #25D366 (WhatsApp)
   ============================================= */

:root {
  --color-primary: #0769BD;
  --color-primary-dark: #055a9e;
  --color-primary-light: #e8f2fb;
  --color-nav-bg: #E7E7E7;
  --color-text: #505050;
  --color-text-dark: #1a1a1a;
  --color-text-light: #666;
  --color-white: #ffffff;
  --color-whatsapp: #25D366;
  --color-accent-green: #2ecc71;
  --font-family: 'Inter', -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --shadow-sm: 0 2px 8px rgba(7, 105, 189, 0.08);
  --shadow-md: 0 8px 32px rgba(7, 105, 189, 0.12);
  --shadow-lg: 0 16px 48px rgba(7, 105, 189, 0.16);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: 0.3s ease;
  --container-max: 1200px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

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

/* =============================================
   CABEÇALHO (idêntico ao site de referência)
   ============================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-white);
}

.header-top {
  padding: 16px 0 10px;
}

.header-top__inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 40px;
  min-height: 76px;
}

.header-logo {
  flex-shrink: 0;
}

.header-logo img {
  width: auto;
  height: 56px;
}

.header-budget {
  flex-shrink: 0;
  transition: transform var(--transition);
}

.header-budget img {
  width: auto;
  height: 48px;
}

.header-budget:hover {
  transform: scale(1.03);
}

.header-phone,
.header-email {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
  font-size: 16px;
  font-weight: 400;
  color: var(--color-text);
  white-space: nowrap;
  transition: color var(--transition);
}

.header-phone:hover,
.header-email:hover {
  color: var(--color-primary);
}

.header-icon {
  width: 29px;
  height: 29px;
  fill: var(--color-primary);
  flex-shrink: 0;
}

.header-social {
  display: flex;
  gap: 3px;
  flex-shrink: 0;
}

.header-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: var(--color-primary);
  border-radius: 50%;
  transition: background var(--transition), transform var(--transition);
}

.header-social a:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}

.header-social svg {
  width: 15px;
  height: 15px;
  fill: var(--color-white);
}

/* Navegação */
.header-nav {
  background: var(--color-nav-bg);
  margin-bottom: -10px;
}

.header-nav__inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 12px;
  margin: 0 auto;
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
  fill: var(--color-text-dark);
}

.nav-menu {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0;
}

.nav-menu > li {
  position: relative;
}

.nav-menu > li > a {
  display: block;
  padding: 14px 20px;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  transition: color var(--transition);
}

.nav-menu > li > a:hover,
.nav-menu > li > a:focus {
  color: var(--color-primary);
}

.nav-menu > li > a.nav-menu__btn {
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50px;
  padding: 10px 24px;
  margin: 6px 0 6px 12px;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.nav-menu > li > a.nav-menu__btn:hover,
.nav-menu > li > a.nav-menu__btn:focus {
  background: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-1px);
}

.sub-arrow {
  font-size: 10px;
  margin-left: 2px;
}

.sub-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--color-white);
  box-shadow: var(--shadow-md);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  z-index: 100;
}

.has-submenu:hover .sub-menu,
.has-submenu:focus-within .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.sub-menu li a {
  display: block;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  transition: background var(--transition), color var(--transition);
}

.sub-menu li a:hover,
.sub-menu li a.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

/* =============================================
   WHATSAPP FLUTUANTE
   ============================================= */

.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 60px;
  height: 60px;
  background: var(--color-whatsapp);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: transform var(--transition), box-shadow var(--transition);
  animation: pulse-wa 2.5s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.5);
}

.whatsapp-float svg {
  width: 34px;
  height: 34px;
  fill: var(--color-white);
  display: block;
  transform: translateY(1px);
}

@keyframes pulse-wa {
  0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.7); }
}

/* =============================================
   RODAPÉ
   ============================================= */

.site-footer {
  color: var(--color-white);
}

.footer-newsletter {
  position: relative;
  padding: 80px 24px;
  background-image: url("https://agenciameasure.com.br/sites/hidroair/wp-content/uploads/2026/02/WhatsApp-Image-2026-03-30-at-15.54.00.jpeg");
  background-size: cover;
  background-position: 0 -800px;
}

.footer-newsletter::before {
  content: '';
  position: absolute;
  inset: 0;
  background-color: #478DDE;
  opacity: 0.85;
}

.footer-newsletter__inner {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.footer-newsletter__title {
  font-size: 26px;
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -1px;
  color: var(--color-white);
  margin-bottom: 8px;
}

.footer-newsletter__form {
  max-width: 500px;
  margin: 0 auto;
  padding-top: 8px;
}

.footer-newsletter__row {
  display: flex;
  gap: 10px;
  align-items: center;
}

.footer-newsletter__row input {
  flex: 1;
  width: 100%;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-family: var(--font-family);
  font-size: 15px;
  box-sizing: border-box;
}

.footer-newsletter__row button {
  background-color: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: 4px;
  padding: 10px 20px;
  font-family: var(--font-family);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color var(--transition);
}

.footer-newsletter__row button:hover {
  background-color: #4338ca;
}

.footer-main {
  background-color: var(--color-primary);
  padding: 30px 0 27px;
}

.footer-main__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 53px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  align-items: start;
}

.footer-brand {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: repeat(2, auto);
  justify-items: center;
  width: 100%;
  max-width: 100%;
  justify-self: start;
}

.footer-nav:first-of-type,
.footer-nav:last-of-type {
  margin-left: 0;
}

.footer-brand__logo {
  width: 88%;
  max-width: 100%;
  height: auto;
  display: block;
  margin: -10px 0 0;
}

.footer-brand__hours {
  width: 77%;
  max-width: 100%;
  height: auto;
  display: block;
  margin: -7px 0 0;
}

.footer-nav__title {
  font-size: 21px;
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.9px;
  color: var(--color-white);
  margin-bottom: 8px;
}

.footer-nav__title strong {
  font-weight: 700;
}

.footer-nav__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-nav__list li {
  margin-bottom: 2px;
}

.footer-nav__list a {
  font-size: 18px;
  font-weight: 300;
  line-height: 1.35;
  color: var(--color-white);
  text-decoration: none;
  transition: opacity var(--transition);
}

.footer-nav__list a:hover {
  opacity: 0.8;
}

.footer-bottom {
  background-color: var(--color-white);
  padding: 20px 24px;
  text-align: center;
}

.footer-bottom__social {
  display: flex;
  justify-content: center;
  gap: 5px;
  margin-bottom: -4px;
}

.footer-bottom__social a {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background-color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition);
}

.footer-bottom__social a:hover {
  transform: scale(1.08);
}

.footer-bottom__social svg {
  width: 23px;
  height: 23px;
  fill: var(--color-primary);
}

.footer-bottom__info {
  font-size: 16px;
  font-weight: 200;
  line-height: 1.3;
  letter-spacing: -0.7px;
  color: #020202;
  margin-top: 12px;
}

.footer-bottom__info strong {
  font-weight: 700;
  font-size: 18px;
}

/* =============================================
   VOLTAR AO TOPO
   ============================================= */

.scroll-top {
  display: none !important;
}

/* =============================================
   RESPONSIVO
   ============================================= */

@media (max-width: 1024px) {
  .footer-newsletter {
    background-position: 0 0;
  }

  .footer-main__inner {
    padding-left: 24px;
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
    width: max-content;
    max-width: 100%;
  }

  .footer-nav:first-of-type,
  .footer-nav:last-of-type {
    margin-left: 0;
  }
}

@media (max-width: 1100px) {
  .header-top__inner {
    padding: 0 24px;
    gap: 24px;
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
    width: 100%;
    justify-content: center;
  }

  .nav-menu {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    box-shadow: var(--shadow-md);
    z-index: 200;
    padding: 8px 0;
  }

  .nav-menu.is-open {
    display: flex;
  }

  .nav-menu > li > a {
    padding: 12px 24px;
    text-align: center;
  }

  .nav-menu > li > a.nav-menu__btn {
    display: inline-block;
    margin: 8px auto;
    width: auto;
  }

  .sub-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    background: #f5f5f5;
    border-radius: 0;
  }

  .has-submenu .sub-menu {
    display: none;
  }

  .has-submenu.is-open .sub-menu {
    display: block;
  }
}

@media (max-width: 480px) {
  .header-top__inner {
    flex-direction: column;
    gap: 16px;
  }

  .header-phone,
  .header-email {
    font-size: 13px;
  }

  .footer-newsletter {
    padding: 60px 20px;
  }

  .footer-newsletter__title {
    font-size: 24px;
  }

  .footer-newsletter__row {
    flex-direction: column;
    align-items: stretch;
  }

  .footer-newsletter__row button {
    width: 100%;
  }

  .footer-main__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-nav__title,
  .footer-bottom__info {
    font-size: 24px;
  }

  .footer-bottom__info strong {
    font-size: 20px;
  }

  .whatsapp-float {
    bottom: 20px;
    right: 20px;
    width: 54px;
    height: 54px;
  }
}