/* ═══════════════════════════════════════════════
   A.N. Instalações Elétricas — style.css
   ═══════════════════════════════════════════════ */

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, ul, figure { margin: 0; }
ul { list-style: none; padding: 0; }
img, video { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font: inherit; border: none; background: none; cursor: pointer; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Variáveis ---------- */
:root {
  --color-primary: #EB161F;
  --color-primary-dark: #C21118;
  --color-dark: #15171B;
  --color-bg: #FBFAF8;
  --color-bg-rgb: 251, 250, 248;
  --color-bg-alt: #F1F0EC;
  --color-text: #1A1A1A;
  --color-text-muted: #5B5F66;
  --color-whatsapp: #25D366;

  --font-body: 'Inter', sans-serif;
  --font-heading: 'Space Grotesk', sans-serif;
  --font-display: 'Electrolize', sans-serif;

  --container-width: 1180px;
  --header-height: 84px;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.5;
}

h1, h2, h3, .logo-text {
  font-family: var(--font-heading);
  letter-spacing: -0.01em;
}

body.is-loading { overflow: hidden; height: 100vh; height: 100dvh; }

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

section, .site-footer { scroll-margin-top: var(--header-height); }

/* ---------- Botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(235, 22, 31, 0.28);
}
.btn-primary:hover { background: var(--color-primary-dark); }

.btn-whatsapp {
  background: var(--color-whatsapp);
  color: #fff;
  box-shadow: 0 8px 20px rgba(37, 211, 102, 0.28);
}
.btn-whatsapp:hover { background: #1fb856; }

.btn-sm { padding: 10px 20px; font-size: 0.85rem; }

/* ---------- Preloader ---------- */
.preloader {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.6rem;
  background: var(--color-bg);
  z-index: 999;
  transition: opacity 0.6s ease;
}
.preloader.is-hidden { opacity: 0; pointer-events: none; }

.preloader .logo-icon { width: min(220px, 55vw); height: auto; }
.preloader .logo-icon path {
  fill: var(--color-primary);
  fill-opacity: 0;
  stroke: var(--color-primary);
  stroke-width: 28;
  stroke-linejoin: round;
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
  animation:
    draw-icon 1.1s cubic-bezier(0.65, 0, 0.35, 1) forwards,
    fill-icon 0.5s ease 1.0s forwards;
}
@keyframes draw-icon { to { stroke-dashoffset: 0; } }
@keyframes fill-icon { to { fill-opacity: 1; } }

.preloader .wordmark {
  font-family: var(--font-display);
  text-align: center;
  color: var(--color-dark);
  line-height: 1.25;
}
.preloader .wordmark-line {
  font-size: clamp(1.1rem, 4vw, 1.6rem);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  padding-left: 0.28em;
}
.preloader .wordmark-line .letter {
  display: inline-block;
  opacity: 0;
  transform: translateY(8px);
  animation: letter-in 0.45s ease forwards;
}
@keyframes letter-in { to { opacity: 1; transform: translateY(0); } }

@media (prefers-reduced-motion: reduce) {
  .preloader .logo-icon path { animation: none; stroke-dashoffset: 0; fill-opacity: 1; }
  .preloader .wordmark-line .letter { animation: none; opacity: 1; transform: none; }
  .preloader { transition: opacity 0.2s ease; }
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(251, 250, 248, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(21, 23, 27, 0.06);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-mark { width: 48px; height: auto; }
.logo-mark path { fill: var(--color-primary); }
.logo-text {
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: var(--color-dark);
  white-space: nowrap;
}
.logo-text strong { font-weight: 800; }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-inline: auto;
}
.nav-menu a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text);
  position: relative;
  padding: 4px 0;
}
.nav-menu a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--color-primary);
  transition: width 0.2s ease;
}
.nav-menu a:hover::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: 16px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav-toggle.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-active span:nth-child(2) { opacity: 0; }
.nav-toggle.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  background: var(--color-bg);
}

.hero-carousel {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
.hero-carousel::before {
  /* scrim no topo pra manter a barra de temporizador legível
     independente do brilho da foto que entrar no lugar do placeholder */
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: calc(var(--header-height) + 60px);
  background: linear-gradient(to bottom, rgba(21, 23, 27, 0.35), transparent);
  z-index: 3;
  pointer-events: none;
}

.hero-carousel-timer {
  position: absolute;
  top: calc(var(--header-height) + 20px);
  left: 20px;
  right: 20px;
  z-index: 4;
  display: flex;
  gap: 6px;
}
.hero-timer-bar {
  flex: 1;
  height: 3px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.45);
  box-shadow: 0 0 0 1px rgba(21, 23, 27, 0.12);
  overflow: hidden;
  position: relative;
}
.hero-timer-bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: #fff;
  border-radius: inherit;
  transform: scaleX(0);
  transform-origin: left;
}
.hero-timer-bar.is-done::after { transform: scaleX(1); }
.hero-timer-bar.is-active::after {
  animation: hero-timer-fill 5s linear forwards;
}
@keyframes hero-timer-fill {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}
@media (prefers-reduced-motion: reduce) {
  .hero-timer-bar.is-active::after { animation: none; transform: scaleX(1); }
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.6s ease;
  z-index: 1;
}
.hero-slide.is-active {
  opacity: 1;
  z-index: 2;
}
.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: clamp(48px, 10vh, 110px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

/* ---------- Clientes (carrossel infinito de logos) ---------- */
.clientes-strip {
  background-image: linear-gradient(rgba(241, 240, 236, 0.8), rgba(241, 240, 236, 0.8)), url('backgroundsite.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  padding-block: 40px;
  overflow: hidden;
}
.clientes-viewport {
  width: 100%;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(to right, transparent, #000 10%, #000 90%, transparent);
  mask-image: linear-gradient(to right, transparent, #000 10%, #000 90%, transparent);
}
.clientes-track {
  display: flex;
  width: max-content;
  animation: clientes-scroll 30s linear infinite;
}
.clientes-strip:hover .clientes-track {
  animation-play-state: paused;
}
.clientes-group {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  gap: 20px;
  padding-inline: 10px;
}
.cliente-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 196px;
  height: 92px;
  padding: 18px 26px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid rgba(21, 23, 27, 0.06);
}
.cliente-logo img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: grayscale(1) contrast(1.15);
  opacity: 0.9;
  transition: filter 0.25s ease, opacity 0.25s ease;
}
.cliente-logo:hover img {
  filter: grayscale(0);
  opacity: 1;
}

@keyframes clientes-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .clientes-track { animation: none; }
}

/* ---------- Serviços ---------- */
.servicos {
  /* header é fixed e cobre 84px do topo da viewport onde a seção estiver;
     descontamos isso para o conteúdo caber inteiro numa tela, sem scroll */
  min-height: calc(100vh - var(--header-height));
  min-height: calc(100dvh - var(--header-height));
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-block: clamp(18px, 3.5vh, 56px);
  background: #fff;
}

.servicos-head { margin-bottom: clamp(6px, 1.2vh, 14px); text-align: center; }
.servicos-title {
  font-size: clamp(1.4rem, 1.4vw + 1.3vh, 2.1rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-dark);
}

.servicos-carousel { position: relative; }

.servicos-track {
  overflow-x: auto;
  overflow-y: visible;
  scroll-snap-type: x mandatory;
  padding-block: 4px 32px;
  scrollbar-width: none;
  padding-inline: calc(50% - 105px);
}
.servicos-track::-webkit-scrollbar { display: none; }

.servico-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #fff;
  color: var(--color-dark);
  box-shadow: 0 8px 20px -8px rgba(21, 23, 27, 0.35);
  transition: background 0.2s ease, color 0.2s ease;
}
.servico-arrow:hover { background: var(--color-primary); color: #fff; }
.servico-arrow-prev { left: 12px; }
.servico-arrow-next { right: 12px; }

@media (max-width: 640px) {
  .servico-arrow { width: 36px; height: 36px; }
  .servico-arrow-prev { left: 6px; }
  .servico-arrow-next { right: 6px; }
}

.servicos-list {
  display: flex;
  align-items: center;
  gap: 24px;
}

.servico-card {
  scroll-snap-align: center;
  flex: 0 0 auto;
  width: min(210px, 48vw);
  transform: scale(0.7);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.servico-card.is-active {
  transform-origin: center top;
  transform: scale(1.08);
}

.servico-media {
  aspect-ratio: 3 / 4;
  border-radius: 20px;
  overflow: hidden;
  background: var(--color-dark);
  margin-bottom: 12px;
}
.servico-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  -webkit-user-drag: none;
  user-select: none;
}

.servico-info h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 6px;
  line-height: 1.3;
}
.servico-info p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.servicos-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: clamp(10px, 1.6vh, 20px);
}
.servico-chip {
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid rgba(21, 23, 27, 0.15);
  background: transparent;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.servico-chip:hover { border-color: var(--color-dark); color: var(--color-dark); }
.servico-chip.is-active {
  background: var(--color-dark);
  border-color: var(--color-dark);
  color: #fff;
}

/* ---------- Sobre ---------- */
.sobre {
  /* header é fixed e cobre 84px do topo — descontamos pra caber numa tela só */
  min-height: calc(100vh - var(--header-height));
  min-height: calc(100dvh - var(--header-height));
  display: flex;
  flex-direction: column;
  justify-content: center;
  background-image: linear-gradient(rgba(241, 240, 236, 0.8), rgba(241, 240, 236, 0.8)), url('backgroundsite.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  padding-block: clamp(28px, 5vh, 80px);
}

.sobre-top {
  display: grid;
  grid-template-columns: minmax(280px, 520px) 1fr;
  gap: 56px;
  align-items: center;
  margin-bottom: clamp(24px, 4vh, 56px);
}

.sobre-image {
  width: 100%;
  height: min(70vh, 600px);
  border-radius: 20px;
  overflow: hidden;
}
.sobre-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.sobre-eyebrow {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.sobre-title {
  font-size: clamp(1.5rem, 1.6vw + 1.4vh, 2.2rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-dark);
  margin-bottom: clamp(10px, 1.8vh, 20px);
}
.sobre-content p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.55;
  margin-bottom: clamp(8px, 1.4vh, 16px);
}
.sobre-content p:last-child { margin-bottom: 0; }

.sobre-diferenciais {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin-top: 8px;
}
.sobre-diferenciais li {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-dark);
  padding-left: 16px;
  position: relative;
}
.sobre-diferenciais li::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  transform: translateY(-50%);
}

.sobre-quadros {
  margin-top: clamp(20px, 3.5vh, 48px);
  padding-top: clamp(16px, 3vh, 40px);
  border-top: 1px solid rgba(21, 23, 27, 0.1);
}
.sobre-quadros h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 16px;
  max-width: 60ch;
}
.sobre-quadros-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.sobre-quadros-list li {
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid rgba(235, 22, 31, 0.4);
  background: rgba(235, 22, 31, 0.1);
  color: var(--color-primary-dark);
  font-size: 0.85rem;
  font-weight: 600;
}

/* ---------- Projetos ---------- */
.projetos {
  padding-block: 96px;
  background-image: linear-gradient(rgba(251, 250, 248, 0.8), rgba(251, 250, 248, 0.8)), url('backgroundsite.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

.projetos-head {
  max-width: 560px;
  margin: 0 auto 40px;
  text-align: center;
}
.projetos-title {
  font-size: clamp(1.7rem, 2.2vw + 1rem, 2.4rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-dark);
  margin-bottom: 10px;
}
.projetos-subtitle {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ---------- Contato ---------- */
.contato {
  padding-block: 96px;
  background-image: linear-gradient(rgba(241, 240, 236, 0.8), rgba(241, 240, 236, 0.8)), url('backgroundsite.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

.contato-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contato-title {
  font-size: clamp(1.7rem, 2.2vw + 1rem, 2.4rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-dark);
  margin-bottom: 12px;
}
.contato-subtitle {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 12px;
}
.contato-support {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 32px;
}

.contato-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contato-info li {
  display: flex;
  align-items: center;
  gap: 14px;
}
.contato-info-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(235, 22, 31, 0.08);
  color: var(--color-primary);
}
.contato-info strong {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 2px;
}
.contato-info a,
.contato-info span {
  font-size: 0.92rem;
  color: var(--color-text-muted);
}
.contato-info a:hover { color: var(--color-primary); }

.contato-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: #fff;
  border-radius: 20px;
  padding: 32px;
  box-shadow: 0 20px 40px -24px rgba(21, 23, 27, 0.15);
}
.contato-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-dark);
}
.contato-form input,
.contato-form textarea {
  font: inherit;
  font-size: 0.95rem;
  padding: 12px 14px;
  border: 1px solid rgba(21, 23, 27, 0.15);
  border-radius: 10px;
  background: var(--color-bg);
  color: var(--color-text);
  resize: vertical;
}
.contato-form input:focus,
.contato-form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}
.contato-form .btn { align-self: flex-start; margin-top: 4px; }

@media (max-width: 800px) {
  .contato-inner { grid-template-columns: 1fr; gap: 40px; }
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.75);
  padding-block: 32px;
  text-align: center;
}
.footer-inner p { font-size: 0.85rem; margin-bottom: 6px; }
.footer-copy { opacity: 0.6; font-size: 0.78rem; }

/* ---------- Responsivo ---------- */
@media (max-width: 960px) {
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0; right: 0;
    background: var(--color-bg);
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 16px 24px 24px;
    border-bottom: 1px solid rgba(21, 23, 27, 0.08);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }
  .nav-menu.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-menu a { width: 100%; padding: 10px 0; }

  .header-actions .btn-sm { display: none; }
  .nav-toggle { display: flex; }

  .hero-inner { padding-bottom: clamp(32px, 8vh, 64px); }

  .sobre-top { grid-template-columns: 1fr; gap: 32px; }
  .sobre-image { aspect-ratio: 16 / 10; height: auto; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn { justify-content: center; }
}