/* EFM Digital — design system
   Preto grafite / off-white / verde ácido. Saira Condensed nos títulos,
   Inter no corpo, Space Mono em rótulos e numeração. */

:root {
  --black: #0b0b0c;
  --offwhite: #f4f2ec;
  --offwhite-dim: #ebe8e0;
  --green: #b8e000;
  --graphite: #3a3a36;
  --gray-on-black: #9c9a92;
  --gray-on-white: #5a584f;
  --line-on-black: rgba(244, 242, 236, 0.14);
  --line-on-white: rgba(11, 11, 12, 0.12);

  --font-display: "Saira Condensed", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "Space Mono", monospace;

  --container: 1180px;
  --gutter: clamp(24px, 5vw, 64px);
  --section-pad: clamp(72px, 10vw, 140px);
}

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

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

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

img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
section { position: relative; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

/* ---------- tipografia ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--gray-on-white);
}
.eyebrow::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
}
[data-tone="dark"] .eyebrow { color: var(--gray-on-black); }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  line-height: 1.02;
}

h1 { font-size: clamp(42px, 6.2vw, 84px); }
h2 { font-size: clamp(32px, 4.6vw, 56px); }
h3 { font-size: clamp(20px, 2.2vw, 26px); letter-spacing: 0.02em; }

p { max-width: 54ch; }
.lede { font-size: clamp(17px, 1.6vw, 19px); color: var(--gray-on-white); }
[data-tone="dark"] .lede { color: var(--gray-on-black); }

/* ---------- botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 17px 30px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 999px;
  white-space: nowrap;
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--green);
  color: var(--black);
}
.btn-primary:hover { background: var(--offwhite); }

.btn-outline {
  border: 1px solid currentColor;
  background: transparent;
}
.btn-outline:hover { background: var(--black); color: var(--offwhite); border-color: var(--black); }
[data-tone="dark"] .btn-outline { color: var(--offwhite); }
[data-tone="dark"] .btn-outline:hover { background: var(--green); color: var(--black); border-color: var(--green); }

/* ---------- header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(244, 242, 236, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-on-white);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}
.site-header .logo { height: 30px; width: auto; }
.site-header .logo img, .site-header .logo svg { height: 100%; width: auto; display: block; }

.main-nav { display: flex; align-items: center; gap: 40px; }
.main-nav ul { display: flex; gap: 34px; }
.main-nav a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  position: relative;
  padding-bottom: 3px;
}
.main-nav a::after {
  content: "";
  position: absolute; left: 0; right: 100%; bottom: 0;
  height: 1px; background: var(--green);
  transition: right 0.25s ease;
}
.main-nav a:hover::after { right: 0; }

.nav-toggle {
  display: none;
  width: 26px; height: 20px;
  position: relative;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: "";
  position: absolute; left: 0; right: 0;
  height: 2px; background: var(--black);
  transition: transform 0.25s ease, opacity 0.25s ease, top 0.25s ease;
}
.nav-toggle span { top: 9px; }
.nav-toggle span::before { top: -8px; }
.nav-toggle span::after { top: 8px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

/* ---------- hero ---------- */
.hero {
  background: var(--black);
  color: var(--offwhite);
  padding: 168px 0 80px;
  overflow: hidden;
}
.hero .container {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(32px, 6vw, 90px);
  align-items: center;
}
.hero-copy .eyebrow { margin-bottom: 24px; }
.hero-copy h1 { margin-bottom: 26px; }
.hero-copy p { margin-bottom: 40px; }

.hero-visual {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  -webkit-mask-image: radial-gradient(ellipse 62% 62% at 50% 50%, #000 15%, transparent 100%);
  mask-image: radial-gradient(ellipse 62% 62% at 50% 50%, #000 15%, transparent 100%);
}
.hero-visual video {
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0.75;
  transform: scale(1.35);
}

/* ---------- cta band ---------- */
.cta-band {
  background: var(--black);
  color: var(--offwhite);
  border-top: 1px solid var(--line-on-black);
  padding: var(--section-pad) 0;
}
.cta-band .container {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
}
.cta-band-text { max-width: 640px; }
.cta-band .eyebrow { margin-bottom: 22px; }
.cta-band h2 { margin-bottom: 18px; }

/* ---------- seções claras genéricas ---------- */
.section { padding: var(--section-pad) 0; }
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 56px;
  flex-wrap: wrap;
}
.section-head h2 { max-width: 640px; }
.section-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--gray-on-white);
  border: 1px solid var(--line-on-white);
  border-radius: 999px;
  padding: 8px 16px;
}

/* ---------- serviços ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line-on-white);
  border-left: 1px solid var(--line-on-white);
}
.service-card {
  border-right: 1px solid var(--line-on-white);
  border-bottom: 1px solid var(--line-on-white);
  padding: 40px 34px;
  transition: background 0.3s ease;
}
.service-card:hover { background: rgba(11,11,12,0.035); }
.service-card .service-index {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--green);
  background: var(--black);
  display: inline-block;
  padding: 3px 9px;
  border-radius: 4px;
  margin-bottom: 22px;
}
.service-card h3 { margin-bottom: 12px; }
.service-card p { font-size: 15px; color: var(--gray-on-white); max-width: none; }

/* ---------- clientes ---------- */
.clients-strip { background: var(--offwhite-dim); }
.clients-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(28px, 5vw, 64px);
}
.clients-row .client-logo {
  height: 34px;
  display: flex;
  align-items: center;
}
.clients-row .client-logo img {
  height: 100%; width: auto;
  max-width: 130px;
  object-fit: contain;
  filter: grayscale(1);
  opacity: 0.55;
  transition: filter 0.3s ease, opacity 0.3s ease;
}
.clients-row .client-logo:hover img {
  filter: grayscale(0);
  opacity: 1;
}

/* ---------- blocos de conteúdo ---------- */
.content-block { padding: var(--section-pad) 0; }
.content-block .container {
  max-width: var(--container);
}
.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.7fr);
  align-items: center;
  gap: clamp(32px, 6vw, 80px);
}
.content-grid.reverse { grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.1fr); }
.content-text { max-width: 640px; }
.content-block .eyebrow { margin-bottom: 24px; }
.content-block h2 { margin-bottom: 24px; }
.content-block p { margin-bottom: 36px; max-width: 62ch; }

.content-block.tone-dark {
  background: var(--black);
  color: var(--offwhite);
}

.content-visual {
  width: 100%;
  height: auto;
  max-width: 320px;
  justify-self: center;
}
.content-visual .node { fill: var(--graphite); }
.content-visual .node-center { fill: var(--green); }
.content-visual line { stroke: var(--graphite); stroke-width: 1.5; opacity: 0.4; }
.content-block.tone-dark .content-visual line { stroke: var(--gray-on-black); opacity: 0.5; }
.content-block.tone-dark .content-visual .node { fill: var(--gray-on-black); }

/* ---------- depoimento ---------- */
.testimonial-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 32px;
  align-items: center;
  max-width: 860px;
  padding: 48px clamp(24px, 5vw, 56px);
  background: var(--offwhite);
  border: 1px solid var(--line-on-white);
  border-radius: 20px;
}
.testimonial-card img {
  width: 74px; height: 74px;
  border-radius: 50%;
  object-fit: cover;
}
.testimonial-quote {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.4vw, 27px);
  text-transform: none;
  line-height: 1.3;
  margin-bottom: 22px;
  max-width: none;
}
.testimonial-name {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gray-on-white);
}
.testimonial-name strong { color: var(--black); font-style: normal; }

/* ---------- footer ---------- */
.site-footer {
  background: var(--black);
  color: var(--offwhite);
  padding: var(--section-pad) 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
  gap: 40px;
  padding-bottom: 72px;
  border-bottom: 1px solid var(--line-on-black);
}
.footer-brand .logo { height: 30px; margin-bottom: 22px; display: block; }
.footer-brand .logo svg { height: 100%; width: auto; display: block; }
.footer-brand p {
  color: var(--gray-on-black);
  font-size: 15px;
  margin-bottom: 28px;
}
.footer-col h3 {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-on-black);
  margin-bottom: 20px;
  font-weight: 400;
}
.footer-col ul { display: flex; flex-direction: column; gap: 13px; }
.footer-col a, .footer-col address {
  font-size: 15px;
  font-style: normal;
  color: var(--offwhite);
  opacity: 0.88;
  transition: opacity 0.2s ease, color 0.2s ease;
}
.footer-col a:hover { opacity: 1; color: var(--green); }
.footer-col address { line-height: 1.6; }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 28px 0 36px;
}
.footer-tagline {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-on-black);
}
.footer-copy {
  font-size: 13px;
  color: var(--gray-on-black);
}

/* ---------- whatsapp float ---------- */
.whatsapp-float {
  position: fixed;
  right: 26px; bottom: 26px;
  z-index: 90;
  width: 58px; height: 58px;
  border-radius: 50%;
  background: var(--green);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(0,0,0,0.28);
  transition: transform 0.25s ease;
}
.whatsapp-float:hover { transform: scale(1.08); }
.whatsapp-float svg { width: 27px; height: 27px; }

/* ---------- cookie bar ---------- */
.cookie-bar {
  position: fixed;
  left: 20px; right: 20px; bottom: 20px;
  z-index: 95;
  max-width: 640px;
  margin: 0 auto;
  background: var(--offwhite);
  border: 1px solid var(--line-on-white);
  border-radius: 14px;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  box-shadow: 0 12px 32px rgba(0,0,0,0.18);
  transform: translateY(140%);
  transition: transform 0.4s ease;
}
.cookie-bar.is-visible { transform: translateY(0); }
.cookie-bar p { font-size: 14px; color: var(--gray-on-white); max-width: none; flex: 1 1 260px; }
.cookie-bar .btn { padding: 12px 22px; }

/* ---------- reveal on scroll ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- responsivo ---------- */
@media (max-width: 980px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-visual { max-width: 480px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .content-grid, .content-grid.reverse { grid-template-columns: 1fr; }
  .content-visual { order: -1; max-width: 200px; }
}

@media (max-width: 720px) {
  .main-nav ul, .main-nav .btn { display: none; }
  .nav-toggle { display: block; }

  .main-nav {
    position: fixed;
    top: 84px; left: 0; right: 0;
    background: var(--offwhite);
    border-bottom: 1px solid var(--line-on-white);
    flex-direction: column;
    align-items: stretch;
    padding: 8px var(--gutter) 26px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s ease, opacity 0.25s ease;
  }
  .main-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .main-nav.is-open ul {
    display: flex;
    flex-direction: column;
    gap: 0;
  }
  .main-nav.is-open ul li { border-bottom: 1px solid var(--line-on-white); }
  .main-nav.is-open ul a { display: block; padding: 16px 2px; }
  .main-nav.is-open .btn { display: inline-flex; margin-top: 16px; }

  .hero { padding-top: 128px; }
  .services-grid { grid-template-columns: 1fr; }
  .clients-row { justify-content: center; text-align: center; }
  .testimonial-card { grid-template-columns: 1fr; text-align: center; justify-items: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 44px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}