/* =========================================================
   DOTEC — Soluções em Climatização & Elétrica
   Paleta extraída da identidade visual (logo/pôster)
   ========================================================= */
:root {
  --azul-escuro: #0B3D6B;   /* headers, rodapé, textos de destaque */
  --azul-principal: #1B6FB8; /* botões, links, ícones */
  --azul-gelo: #EAF4FB;     /* fundos de seção alternados */
  --azul-grad-start: #3FA9E0; /* gradiente inspirado no logo/banner (claro) */
  --azul-grad-end: #0B3D6B;   /* gradiente inspirado no logo/banner (escuro) */
  --branco: #FFFFFF;
  --amarelo-cta: #FFC72C;   /* cor do raio — usada nos CTAs */
  --amarelo-cta-hover: #E6B01F;
  --cinza-texto: #2E2E2E;
  --cinza-claro: #6B7A85;
  --whatsapp: #25D366;
  --whatsapp-hover: #1EBE5A;
  --sombra: 0 4px 16px rgba(11, 61, 107, 0.12);
  --radius: 12px;
  --max-width: 1180px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--cinza-texto);
  background: var(--branco);
  line-height: 1.6;
}

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

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

ul { list-style: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- Botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
  box-shadow: 0 6px 16px rgba(11, 61, 107, 0.12);
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(11, 61, 107, 0.18);
}

.btn-cta {
  background: var(--amarelo-cta);
  color: var(--azul-escuro);
}
.btn-cta:hover { background: var(--amarelo-cta-hover); }

.btn-whatsapp {
  background: var(--whatsapp);
  color: var(--branco);
}
.btn-whatsapp:hover { background: var(--whatsapp-hover); }

.btn-outline {
  background: transparent;
  border: 2px solid var(--branco);
  color: var(--branco);
}
.btn-outline:hover { background: rgba(255,255,255,.12); }

/* ---------- Header / Navegação ---------- */
.header {
  background: linear-gradient(90deg, var(--azul-grad-start), var(--azul-grad-end));
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--sombra);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--branco);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: .5px;
}

.nav__brand .raio { color: var(--amarelo-cta); }

.nav__logo {
  height: 96px;
  max-width: 340px;
  width: auto;
  object-fit: contain;
  border-radius: 10px;
  display: inline-block;
  flex-shrink: 0;
  border: 0;
  box-shadow: 0 2px 10px rgba(0,0,0,.25);
}

.nav__logo-placeholder {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--azul-principal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.nav__links {
  display: flex;
  gap: 28px;
}

.nav__links a {
  color: var(--branco);
  font-weight: 600;
  padding: 8px 4px;
  border-bottom: 2px solid transparent;
  transition: border-color .2s ease, color .2s ease;
}

.nav__links a:hover,
.nav__links a.active {
  border-color: var(--amarelo-cta);
  color: var(--amarelo-cta);
}

.nav__cta {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav__toggle span {
  width: 26px;
  height: 3px;
  background: var(--branco);
  border-radius: 2px;
}

/* ---------- Responsividade do Header ---------- */
@media (max-width: 900px) {
  .nav {
    flex-wrap: wrap;
    gap: 12px;
    padding: 12px 20px;
  }

  .nav__logo {
    height: 68px;
    max-width: 240px;
  }

  .nav__links {
    order: 3;
    width: 100%;
    justify-content: center;
    gap: 16px;
    padding-top: 4px;
  }
}

@media (max-width: 640px) {
  .nav {
    padding: 10px 16px;
  }

  .nav__brand {
    font-size: 1.15rem;
    gap: 8px;
  }

  .nav__logo {
    height: 42px;
    max-width: 140px;
    width: auto;
    border-radius: 8px;
  }

  .nav__cta .btn-whatsapp {
    display: none;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__links {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 10px 0 4px;
    background: rgba(255,255,255,0.06);
    border-radius: 10px;
  }

  .nav__links.open {
    display: flex;
    animation: slideDown .2s ease-out;
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(160deg, var(--azul-grad-start) 0%, var(--azul-grad-end) 100%);
  color: var(--branco);
  padding: 84px 0 104px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(255,199,44,0.12), transparent 28%);
  pointer-events: none;
}

.hero::after {
  content: "❄";
  position: absolute;
  right: -20px;
  top: -30px;
  font-size: 14rem;
  opacity: .08;
  pointer-events: none;
}

/* subtle ice texture using CSS gradients to echo promotional banner */
.hero::before, .hero::after { mix-blend-mode: overlay; }
.hero::after { opacity: .06; transform: translateY(-6px) rotate(-6deg); }

.hero__content {
  max-width: 640px;
}

.hero__eyebrow {
  display: inline-block;
  background: rgba(255,255,255,.15);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: .85rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 14px;
}

.hero h1 .raio { color: var(--amarelo-cta); }

.hero__tagline {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--amarelo-cta);
  margin-bottom: 10px;
}

.hero p.slogan {
  font-size: 1.15rem;
  margin-bottom: 30px;
  color: rgba(255,255,255,.9);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero__highlight {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
  max-width: 620px;
}

.hero__highlight-item {
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 12px;
  padding: 14px 16px;
  backdrop-filter: blur(8px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.12);
}

.hero__highlight-item strong {
  display: block;
  color: var(--amarelo-cta);
  font-size: 1rem;
  margin-bottom: 2px;
}

.hero__highlight-item span {
  color: rgba(255,255,255,0.92);
  font-size: 0.92rem;
}

/* ---------- Seções genéricas ---------- */
.section {
  padding: 76px 0;
}

.section--alt {
  background: var(--azul-gelo);
}

.section__header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
}

.section__header h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--azul-escuro);
  margin-bottom: 12px;
}

.section__header p {
  color: var(--cinza-claro);
}

/* ---------- Cards de Serviço ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 26px;
  align-items: stretch;
}

.service-card {
  background: var(--branco);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--sombra);
  transition: transform .2s ease, box-shadow .2s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
  border: 1px solid rgba(27, 111, 184, 0.08);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 28px rgba(11,61,107,.16);
}

.service-card__media {
  aspect-ratio: 4 / 3;
  background: var(--azul-gelo);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--azul-principal);
  position: relative;
}

.service-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.placeholder-tag {
  position: absolute;
  bottom: 8px;
  left: 8px;
  right: 8px;
  background: rgba(11,61,107,.85);
  color: var(--branco);
  font-size: .68rem;
  padding: 4px 8px;
  border-radius: 6px;
  font-family: monospace;
  text-align: center;
  word-break: break-all;
}

.placeholder-icon { font-size: 2.6rem; }

.service-card__body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.service-card__body h3 {
  color: var(--azul-escuro);
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.service-card__body p {
  color: var(--cinza-claro);
  font-size: .95rem;
  flex: 1;
}

.service-card__body a {
  margin-top: 14px;
  font-weight: 700;
  color: var(--azul-principal);
}

/* ---------- Vídeos ---------- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 26px;
}

.video-card {
  background: var(--azul-escuro);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--sombra);
  color: var(--branco);
  border: 1px solid rgba(255,255,255,0.08);
}

.video-card__player {
  aspect-ratio: 16 / 9;
  position: relative;
  background: #04223d;
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-card__player video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, rgba(4,34,61,.95), rgba(16,81,141,.88));
  color: var(--branco);
  text-align: center;
  padding: 20px;
}

.video-placeholder__icon {
  font-size: 2rem;
}

.video-placeholder__text {
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.video-card__caption {
  padding: 14px 16px;
  font-size: .9rem;
}

/* ---------- Diferenciais / Sobre ---------- */
.diferenciais-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.diferencial {
  text-align: center;
  padding: 24px 16px;
  background: var(--branco);
  border-radius: var(--radius);
  box-shadow: var(--sombra);
  border: 1px solid rgba(27, 111, 184, 0.08);
}

.diferencial__icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--azul-grad-start), var(--azul-grad-end));
  color: var(--branco);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  box-shadow: 0 8px 18px rgba(11,61,107,0.12);
  border: 2px solid rgba(255,199,44,0.06);
}

.diferencial h3 {
  color: var(--azul-escuro);
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.diferencial p {
  color: var(--cinza-claro);
  font-size: .92rem;
}

.stars { color: var(--amarelo-cta); font-size: 1.2rem; letter-spacing: 2px; }

/* ---------- Detalhe de Serviço (página Serviços) ---------- */
.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  padding: 50px 0;
  border-bottom: 1px solid #dbe8f2;
}
.service-detail:last-child { border-bottom: none; }
.service-detail:nth-child(even) .service-detail__media { order: 2; }

.service-detail__media {
  background: var(--azul-gelo);
  border-radius: var(--radius);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--azul-principal);
  position: relative;
  overflow: hidden;
  box-shadow: var(--sombra);
  border: 1px solid rgba(27, 111, 184, 0.08);
}
.service-detail__media img { width: 100%; height: 100%; object-fit: cover; }

.service-detail__body h2 {
  color: var(--azul-escuro);
  margin-bottom: 10px;
  font-size: 1.5rem;
}

.service-detail__body p { margin-bottom: 12px; color: var(--cinza-texto); }

.service-detail__body ul { margin-bottom: 18px; }
.service-detail__body ul li {
  padding-left: 26px;
  position: relative;
  margin-bottom: 6px;
  color: var(--cinza-texto);
}
.service-detail__body ul li::before {
  content: "✔";
  position: absolute;
  left: 0;
  color: var(--azul-principal);
  font-weight: 700;
}

/* ---------- Sobre ---------- */
.sobre-hero {
  background: var(--azul-gelo);
  padding: 60px 0;
}

.sobre-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.sobre-content__media {
   background: var(--azul-gelo);
   border-radius: var(--radius);
   box-shadow: var(--sombra);
   aspect-ratio: 4/3;
   display: flex;
   align-items: center;
   justify-content: center;
   color: var(--azul-principal);
   overflow: hidden;
   position: relative;
 }
 .sobre-content__media img {
   width: 100%;
   height: 100%;
   object-fit: cover;
 }
 .sobre-content__media .placeholder-icon,
 .sobre-content__media .placeholder-tag {
   position: absolute;
   left: 50%;
   transform: translateX(-50%);
 }
 .sobre-content__media .placeholder-icon {
   display: flex;
   align-items: center;
   justify-content: center;
   font-size: 2.6rem;
   width: 100%;
   top: 50%;
   transform: translate(-50%, -50%);
 }
 .sobre-content__media .placeholder-tag {
   display: none;
   bottom: 12px;
   background: rgba(11,61,107,.85);
   color: var(--branco);
   font-size: .78rem;
   padding: 6px 10px;
   border-radius: 8px;
   font-family: monospace;
   text-align: center;
   min-width: 140px;
 }
.pagamentos {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}
.pagamentos span {
  background: var(--branco);
  border: 1px solid #dbe8f2;
  color: var(--azul-escuro);
  font-weight: 700;
  font-size: .85rem;
  padding: 8px 14px;
  border-radius: 8px;
}

/* ---------- Contato ---------- */
.contato-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 50px;
}

.form-orcamento {
  background: var(--branco);
  border: 1px solid #dbe8f2;
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--sombra);
  backdrop-filter: blur(6px);
}

.form-group { margin-bottom: 18px; }

.form-group label {
  display: block;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--azul-escuro);
  font-size: .92rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #cdd9e3;
  border-radius: 8px;
  font-size: .95rem;
  font-family: inherit;
  color: var(--cinza-texto);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--azul-principal);
}

.form-feedback {
  margin-top: 14px;
  font-size: .9rem;
  color: var(--azul-principal);
  display: none;
}
.form-feedback.show { display: block; }

.contato-info {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.contato-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.contato-item__icon {
  width: 46px;
  height: 46px;
  flex-shrink: 0;
  background: var(--azul-principal);
  color: var(--branco);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.contato-item h3 {
  color: var(--azul-escuro);
  font-size: 1rem;
  margin-bottom: 2px;
}

.mapa-wrapper {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--sombra);
  border: 1px solid #dbe8f2;
}

.mapa-wrapper iframe {
  width: 100%;
  height: 280px;
  border: 0;
  display: block;
}

/* ---------- Footer ---------- */
.footer {
  background: linear-gradient(135deg, var(--azul-escuro) 0%, #0F4E7C 100%);
  color: rgba(255,255,255,.85);
  padding: 40px 0 20px;
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
  margin-bottom: 24px;
}

.footer__brand {
  color: var(--branco);
  font-weight: 800;
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.footer h4 {
  color: var(--branco);
  margin-bottom: 12px;
  font-size: .95rem;
}

.footer ul li { margin-bottom: 8px; font-size: .9rem; }
.footer ul li a:hover { color: var(--amarelo-cta); }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.15);
  padding-top: 18px;
  text-align: center;
  font-size: .82rem;
  color: rgba(255,255,255,.6);
}

/* ---------- Botão WhatsApp flutuante ---------- */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 60px;
  height: 60px;
  background: var(--whatsapp);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 18px rgba(0,0,0,.25);
  z-index: 999;
  transition: transform .2s ease;
}
.whatsapp-float:hover { transform: scale(1.08); background: var(--whatsapp-hover); }
.whatsapp-float svg { width: 32px; height: 32px; }

/* ---------- Responsivo ---------- */
@media (max-width: 860px) {
  .service-detail,
  .service-detail:nth-child(even) .service-detail__media,
  .sobre-content,
  .contato-grid {
    grid-template-columns: 1fr;
  }
  .service-detail:nth-child(even) .service-detail__media { order: 0; }
}

@media (max-width: 760px) {
  .nav__links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--azul-escuro);
    flex-direction: column;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
  }
  .nav__links.open { max-height: 320px; }
  .nav__links a {
    padding: 14px 20px;
    width: 100%;
    border-bottom: 1px solid rgba(255,255,255,.08);
  }
  .nav__toggle { display: flex; }
  .nav__cta .btn span.btn-label { display: none; }
  .hero { padding: 60px 0 80px; text-align: center; }
  .hero__content { margin: 0 auto; }
  .hero__actions { justify-content: center; }
}