/* ============================================================
   AETEC — style.css
   ============================================================
   CONFIGURAÇÃO RÁPIDA — edite as variáveis abaixo em :root
   para ajustar cores, fontes e espaçamentos globalmente.
   ============================================================ */

/* ── Variáveis globais ───────────────────────────────────────
   Mude aqui para alterar toda a paleta e tipografia do site.
   ─────────────────────────────────────────────────────────── */
:root {
  /* Cores principais */
  --orange:        #f59f40;
  --orange-dark:   #d4831a;
  --orange-light:  #fff3e0;
  --blue:          #2582c4;
  --blue-dark:     #1a6099;

  /* Fundos */
  --dark:          #0a0f1e;   /* hero e contact */
  --dark-deep:     #070b14;   /* footer */
  --dark-border:   rgba(255, 255, 255, 0.1);

  /* Neutros */
  --white:         #ffffff;
  --gray-50:       #f9fafb;
  --gray-100:      #f3f4f6;
  --gray-200:      #e5e7eb;
  --gray-400:      #9ca3af;
  --gray-600:      #6b7280;
  --gray-900:      #111827;

  /* Tipografia */
  --font-serif:    'DM Serif Display', Georgia, serif;
  --font-sans:     'DM Sans', system-ui, -apple-system, sans-serif;

  /* Layout */
  --container:     1200px;
  --nav-h:         72px;
  --section-py:    96px;
  --radius:        10px;
  --radius-sm:     6px;

  /* Movimento */
  --ease:          cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --dur:           0.3s;
}


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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--gray-900);
  background: var(--white);
  overflow-x: hidden;
}

/* Previne scroll horizontal em qualquer tela */
html { overflow-x: hidden; }

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea, button, select { font-family: var(--font-sans); }
[hidden] { display: none !important; }

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.02em;
}
p { max-width: 65ch; }


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


/* ── Botões ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  min-height: 44px; /* tap target mínimo */
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1;
  transition: background var(--dur) var(--ease),
              color var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              transform var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--orange);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--orange-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 28px rgba(245, 159, 64, 0.4);
}
.btn-primary:active { transform: translateY(0); box-shadow: none; }

.btn-ghost {
  color: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.22);
}
.btn-ghost:hover {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.06);
}

.btn-nav {
  background: var(--orange);
  color: var(--white);
  padding: 9px 20px;
  font-size: 14px;
}
.btn-nav:hover { background: var(--orange-dark); }


/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 200;
  /* sem height fixo aqui — o mobile-menu expande o container naturalmente */
  transition: background var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}

/* No topo da página — transparente */
.navbar.is-top {
  background: transparent;
}

/* Após scroll — sólida com backdrop blur */
.navbar.is-scrolled {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--gray-200);
}

.navbar-inner {
  display: flex;
  align-items: center;
  height: var(--nav-h);
  gap: 16px;
}

/* Logo */
.logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}
.logo-svg {
  height: 26px;
  width: auto;
}

/* Qual variante do logo mostrar conforme estado da navbar */
.navbar.is-top    .logo-light { display: none; }
.navbar.is-top    .logo-dark  { display: block; }
.navbar.is-scrolled .logo-light { display: block; }
.navbar.is-scrolled .logo-dark  { display: none; }

/* Links de navegação desktop */
.nav-links {
  display: none;
  align-items: center;
  gap: 28px;
  margin-left: auto;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: color var(--dur);
}
.navbar.is-top     .nav-links a         { color: rgba(255,255,255,0.72); }
.navbar.is-top     .nav-links a:hover,
.navbar.is-top     .nav-links a.is-active { color: var(--white); }
.navbar.is-scrolled .nav-links a         { color: var(--gray-600); }
.navbar.is-scrolled .nav-links a:hover,
.navbar.is-scrolled .nav-links a.is-active { color: var(--orange); }

/* CTA na navbar — escondida por padrão, visível no desktop */
.btn-nav { display: none; }

/* Hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px 6px;
  margin-left: auto;
  border-radius: var(--radius-sm);
  transition: background var(--dur);
  flex-shrink: 0;
}
.hamburger:hover { background: rgba(255, 255, 255, 0.08); }
.navbar.is-scrolled .hamburger:hover { background: var(--gray-100); }

.hamburger span {
  display: block;
  height: 2px;
  border-radius: 2px;
  transition: transform var(--dur) var(--ease), opacity var(--dur);
}
.navbar.is-top     .hamburger span { background: rgba(255,255,255,0.9); }
.navbar.is-scrolled .hamburger span { background: var(--gray-900); }

.hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Menu mobile */
.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 8px 0 24px;
  background: var(--white);
  border-top: 1px solid var(--gray-100);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.14);
}
.mobile-menu.is-open { display: flex; }

.mobile-menu ul {
  display: flex;
  flex-direction: column;
  padding: 0 24px;
  margin-bottom: 16px;
}
.mobile-menu li a {
  display: block;
  padding: 13px 0;
  font-size: 16px;
  font-weight: 500;
  color: var(--gray-900);
  border-bottom: 1px solid var(--gray-100);
  transition: color var(--dur);
}
.mobile-menu li:last-child a { border-bottom: none; }
.mobile-menu li a:hover { color: var(--orange); }

.mobile-cta {
  margin: 0 24px;
  width: calc(100% - 48px);
}

/* Desktop — mostra nav links e btn-nav, esconde hamburger */
@media (min-width: 768px) {
  .nav-links  { display: flex; }
  .btn-nav    { display: inline-flex; }
  .hamburger  { display: none; }
  .mobile-menu { display: none !important; }
}


/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  min-height: 100vh; /* fallback */
  display: flex;
  flex-direction: column;
  justify-content: center;
  /*
    Overlay em gradiente diagonal:
    esquerda mais escura (legibilidade do texto)
    direita mais aberta (imagem respira)
  */
  background:
    linear-gradient(
      108deg,
      rgba(10, 15, 30, 0.93) 0%,
      rgba(10, 15, 30, 0.80) 48%,
      rgba(10, 15, 30, 0.60) 100%
    ),
    url('images/background.jpg') center / cover no-repeat;
  overflow: hidden;
  padding-top: var(--nav-h);
}

/* Vinheta inferior — suaviza a transição para a próxima seção */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 15, 30, 0.55) 0%, transparent 32%);
  pointer-events: none;
}

/* Brilho azul sutil — dá atmosfera sem sobrepor a foto */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 80% 40%, rgba(37, 130, 196, 0.12) 0%, transparent 52%);
  pointer-events: none;
}

/* Decoração: setas do logo em plano de fundo — camada sobre a foto */
.hero-decor {
  position: absolute;
  right: -4%;
  top: 50%;
  transform: translateY(-50%);
  width: clamp(260px, 40vw, 500px);
  opacity: 0.18;  /* ligeiramente mais visível — a foto escurece o fundo */
  pointer-events: none;
  mix-blend-mode: screen; /* setas se integram com a foto em vez de sobrepor */
}
.hero-arrows { width: 100%; height: auto; }

.hero-layout {
  position: relative;
  z-index: 1;
  padding-top: 32px;
  padding-bottom: 80px;
}

.hero-content { max-width: 660px; }

/* Headline */
.hero-headline {
  font-size: clamp(42px, 6vw, 76px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  color: var(--white);
  margin-bottom: 28px;
}
.hero-headline em {
  font-style: italic;
  color: var(--orange);
}

/* Subheadline */
.hero-sub {
  font-size: clamp(16px, 1.7vw, 19px);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 44px;
  max-width: 52ch;
}

/* CTAs */
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
}

/* Indicador de scroll */
.hero-scroll-hint {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
}
.scroll-line {
  display: block;
  width: 1px;
  height: 52px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.45), transparent);
  animation: scrollPulse 2.2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: scaleY(1); transform-origin: top; }
  50%       { opacity: 0.85; transform: scaleY(1.08); transform-origin: top; }
}


/* ============================================================
   SEÇÕES — base compartilhada
   ============================================================ */
.section { padding: var(--section-py) 0; }
.section-alt  { background: var(--gray-50); }
.section-dark { background: var(--dark); color: var(--white); }

.section-header { margin-bottom: 56px; }

.section-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(30px, 4vw, 50px);
  letter-spacing: -0.03em;
  color: var(--gray-900);
  line-height: 1.08;
}
.section-dark .section-title { color: var(--white); }


/* ============================================================
   SERVIÇOS
   ============================================================ */
/*
  A grade usa gap de 1px com background na cor da borda.
  Cada card tem background branco e preenche a célula.
  Hover muda o background do card — simples e sem hacks de borda.
*/
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--gray-200);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
}

.service-card {
  background: var(--white);
  padding: 40px 32px;
  transition: background var(--dur);
}
.service-card:hover { background: var(--gray-50); }

.service-icon {
  width: 36px;
  height: 36px;
  color: var(--orange);
  margin-bottom: 20px;
}
.service-icon svg { width: 100%; height: 100%; }

.service-name {
  font-size: clamp(18px, 1.8vw, 22px);
  letter-spacing: -0.02em;
  color: var(--gray-900);
  margin-bottom: 10px;
}

.service-desc {
  font-size: 15px;
  line-height: 1.7;
  color: var(--gray-600);
  max-width: 38ch;
}

@media (min-width: 640px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 960px) {
  .services-grid { grid-template-columns: repeat(4, 1fr); }
  .service-desc  { max-width: none; }
}


/* ============================================================
   PORTFÓLIO
   ============================================================ */
.portfolio-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.project-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.04);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 18px rgba(0,0,0,0.09), 0 20px 48px rgba(0,0,0,0.07);
}

.project-img-wrap {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--gray-200); /* placeholder se imagem falhar */
}
.project-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.55s var(--ease);
}
.project-card:hover .project-img { transform: scale(1.05); }

.project-info { padding: 22px 26px; }

.project-title {
  font-size: 19px;
  letter-spacing: -0.02em;
  color: var(--gray-900);
  margin-bottom: 6px;
}

.project-impact {
  font-size: 14px;
  line-height: 1.65;
  color: var(--gray-600);
  max-width: none;
}

@media (min-width: 640px) {
  .portfolio-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 960px) {
  .portfolio-grid { grid-template-columns: repeat(3, 1fr); }
}


/* ============================================================
   DIFERENCIAIS
   ============================================================ */
.diff-grid {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--gray-200);
}

.diff-item {
  padding: 40px 0 40px;
  border-bottom: 1px solid var(--gray-200);
  position: relative;
}

/* Traço laranja acima de cada item */
.diff-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 36px;
  height: 2px;
  background: var(--orange);
}

.diff-num {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--orange);
  margin-bottom: 14px;
  padding-top: 18px;
}

.diff-head {
  font-size: clamp(18px, 2vw, 22px);
  letter-spacing: -0.02em;
  color: var(--gray-900);
  margin-bottom: 10px;
  line-height: 1.2;
  max-width: 30ch;
}

.diff-body {
  font-size: 15px;
  line-height: 1.7;
  color: var(--gray-600);
  max-width: 44ch;
}

@media (min-width: 640px) {
  .diff-grid {
    grid-template-columns: 1fr 1fr;
    column-gap: 40px;
  }
  .diff-item:nth-child(odd)  { padding-right: 20px; }
  .diff-item:nth-child(even) { padding-left: 20px; }
}

@media (min-width: 960px) {
  .diff-grid {
    grid-template-columns: repeat(4, 1fr);
    column-gap: 32px;
  }
  .diff-item { border-bottom: none; border-right: 1px solid var(--gray-200); padding: 40px 28px 40px 0; }
  .diff-item:last-child { border-right: none; }
  /* reset overrides de mobile */
  .diff-item:nth-child(odd),
  .diff-item:nth-child(even) { padding-left: 0; padding-right: 28px; }
  .diff-item:last-child { padding-right: 0; }
}


/* ============================================================
   CONTATO
   ============================================================ */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 56px;
}

/* Título e info */
.contact-title {
  font-size: clamp(36px, 5vw, 60px);
  letter-spacing: -0.035em;
  color: var(--white);
  line-height: 1.02;
  margin-bottom: 18px;
}

.contact-sub {
  font-size: 16px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 36px;
  max-width: 40ch;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--dur);
}
.contact-link:hover { color: var(--orange); }
.contact-link svg   { width: 17px; height: 17px; flex-shrink: 0; opacity: 0.65; }
.contact-link:hover svg { opacity: 1; }

/* Formulário */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
}

.form-group input,
.form-group textarea {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-size: 15px;
  color: var(--white);
  outline: none;
  resize: vertical;
  transition: border-color var(--dur), background var(--dur);
  -webkit-appearance: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255, 255, 255, 0.22); }

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  background: rgba(255, 255, 255, 0.1);
}

.form-group input.is-error,
.form-group textarea.is-error {
  border-color: #f87171;
}

/* Botão de envio */
.btn-submit {
  align-self: flex-start;
  min-width: 190px;
  position: relative;
}
.btn-loading { display: none; }
.btn-submit.is-loading .btn-text    { display: none; }
.btn-submit.is-loading .btn-loading { display: block; }
.btn-submit:disabled { opacity: 0.65; cursor: not-allowed; transform: none !important; }

/* Mensagem de sucesso */
.form-success {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  background: rgba(37, 130, 196, 0.18);
  border: 1px solid rgba(37, 130, 196, 0.36);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-size: 14px;
  font-weight: 500;
}
.form-success svg { width: 18px; height: 18px; color: #4ade80; flex-shrink: 0; }

@media (min-width: 768px) {
  .contact-layout {
    grid-template-columns: 1fr 1.4fr;
    align-items: start;
  }
}


/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--dark-deep);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 48px 0;
}

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

.footer-logo svg { height: 22px; width: auto; }
.footer-logo:focus-visible { outline: 2px solid var(--orange); outline-offset: 4px; }

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 28px;
}
.footer-nav a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.38);
  transition: color var(--dur);
}
.footer-nav a:hover { color: var(--orange); }

.footer-legal {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.28);
  line-height: 1.9;
}
.footer-legal p { max-width: none; }

@media (min-width: 768px) {
  .footer-inner {
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 40px;
  }
  .footer-nav    { justify-content: center; }
  .footer-legal  { text-align: right; }
}


/* ============================================================
   ANIMAÇÕES DE ENTRADA — IntersectionObserver
   ============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s var(--ease),
              transform 0.65s var(--ease);
  transition-delay: var(--delay, 0s);
}
.fade-up.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Respeita preferência de movimento reduzido */
@media (prefers-reduced-motion: reduce) {
  .fade-up { opacity: 1; transform: none; transition: none; }
  .scroll-line { animation: none; }
  .hero-arrows { opacity: 0.06; }
}


/* ============================================================
   AJUSTES MOBILE — até 767px
   ============================================================ */

/* Tap targets mínimos para links de contato e nav */
.contact-link { min-height: 44px; }
.mobile-menu li a {
  min-height: 48px;
  display: flex;
  align-items: center;
}

/* Formulário — botão ocupa toda a largura no mobile */
@media (max-width: 767px) {
  .btn-submit { width: 100%; align-self: stretch; }
}

/* Breakpoint principal mobile */
@media (max-width: 639px) {
  :root {
    --section-py: 68px;
    --nav-h:      60px;
  }

  /* Layout geral */
  .container { padding: 0 20px; }

  /* Hero */
  .hero-scroll-hint { display: none; }
  .hero-decor       { opacity: 0.08; right: -20%; width: 80vw; }
  .hero-layout      { padding-top: 24px; padding-bottom: 56px; }
  .hero-sub         { font-size: 16px; margin-bottom: 36px; }
  .hero-actions     { gap: 12px; }

  /* Seções */
  .section-header   { margin-bottom: 40px; }

  /* Serviços */
  .service-card     { padding: 28px 20px; }
  .service-desc     { max-width: none; }

  /* Portfólio */
  .portfolio-grid   { gap: 16px; }

  /* Diferenciais */
  .diff-grid        { row-gap: 0; }
  .diff-item        { padding: 28px 0; }

  /* Contato */
  .contact-layout   { gap: 40px; }
  .contact-sub      { font-size: 15px; }

  /* Footer */
  .footer           { padding: 40px 0; }
  .footer-inner     { gap: 24px; }
  .footer-nav       { gap: 14px 20px; }
}

/* Telas muito pequenas (≤ 400px) */
@media (max-width: 400px) {
  .hero-headline    { font-size: 36px; }
  .hero-actions     { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .diff-head        { font-size: 18px; }
}


/* ============================================================
   UTILITÁRIOS
   ============================================================ */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* Focus visível acessível */
:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
  border-radius: 2px;
}