/* ============================================================
   ZN Motores Elétricos — style.css
   Design tokens + estilos do site institucional (mobile-first)
   ============================================================ */

/* ---------- Reset básico ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body, h1, h2, h3, h4, p, figure, blockquote, dl, dd, ul, ol { margin: 0; }
ul[class], ol[class] { padding: 0; list-style: none; }
img, picture { max-width: 100%; display: block; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; }

/* ---------- Tokens ---------- */
:root {
  --font-heading: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --color-bg: #ffffff;
  --color-bg-alt: #f4f2ef;
  --color-bg-dark: #1b1c1e;
  --color-ink: #1a1a1a;
  --color-ink-soft: #4b4b4f;
  --color-ink-muted: #6d6d70;
  --color-border: #e3e0da;
  --color-border-dark: #333438;

  --color-primary: #b91c1c;
  --color-primary-dark: #8c1515;
  --color-primary-contrast: #ffffff;
  --color-white: #ffffff;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 22px;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 2px rgba(20, 20, 20, .06), 0 1px 3px rgba(20, 20, 20, .08);
  --shadow-md: 0 10px 30px rgba(20, 20, 20, .12);

  --container: 1180px;
  --gutter: 1.25rem;

  --sp-1: .25rem;
  --sp-2: .5rem;
  --sp-3: .75rem;
  --sp-4: 1rem;
  --sp-5: 1.5rem;
  --sp-6: 2rem;
  --sp-8: 3rem;
  --sp-10: 4rem;
  --sp-12: 5rem;

  --transition: 180ms ease;
  --header-h: 72px;
}

/* ---------- Base ---------- */
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}

body {
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.6;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-ink);
  line-height: 1.15;
  text-transform: none;
  letter-spacing: .01em;
  font-weight: 600;
}
h1 { font-size: clamp(1.9rem, 4.5vw, 3.1rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); }
h3 { font-size: 1.2rem; }

p { color: var(--color-ink-soft); }

a { text-decoration: none; }

section { scroll-margin-top: calc(var(--header-h) + 12px); }

img { border-radius: var(--radius-md); }

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--color-primary);
  color: #fff;
  padding: .75rem 1.25rem;
  border-radius: 0 0 var(--radius-sm) 0;
  z-index: 999;
}
.skip-link:focus {
  left: 0;
  top: 0;
}

/* ---------- Foco acessível ---------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--color-primary-dark);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ---------- Layout util ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: var(--sp-10);
}
.section--alt { background: var(--color-bg-alt); }
.section--dark {
  background: var(--color-bg-dark);
  color: #f4f2ef;
}
.section--dark h2, .section--dark h3 { color: #fff; }
.section--dark p { color: #cfcfd1; }

.section-head {
  max-width: 720px;
  margin-bottom: var(--sp-8);
}
.section-head--center { margin-inline: auto; text-align: center; }
.eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  color: var(--color-primary);
  letter-spacing: .12em;
  text-transform: uppercase;
  font-size: .8rem;
  margin-bottom: var(--sp-2);
}

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

/* ---------- Botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .85rem 1.5rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 1rem;
  border: 2px solid transparent;
  transition: transform var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
  line-height: 1.2;
}
.btn svg { width: 20px; height: 20px; flex-shrink: 0; }
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--color-primary);
  color: #fff;
}
.btn--primary:hover { background: var(--color-primary-dark); }

.btn--outline {
  background: transparent;
  border-color: var(--color-ink);
  color: var(--color-ink);
}
.btn--outline:hover { background: var(--color-ink); color: #fff; }

.btn--outline-light {
  background: transparent;
  border-color: rgba(255,255,255,.5);
  color: #fff;
}
.btn--outline-light:hover { background: rgba(255,255,255,.12); border-color: #fff; }

.btn--block { width: 100%; }

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.96);
  backdrop-filter: saturate(140%) blur(6px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-h);
}
.site-header .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: .4rem;
  font-family: var(--font-heading);
  white-space: nowrap;
}
.brand__mark {
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1.6rem;
  letter-spacing: .02em;
}
.brand__name {
  color: var(--color-ink);
  font-size: .95rem;
  font-weight: 500;
  letter-spacing: .02em;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
}
.nav__list {
  display: none;
  gap: var(--sp-5);
  font-size: .95rem;
  font-weight: 500;
}
.nav__list a {
  color: var(--color-ink-soft);
  transition: color var(--transition);
}
.nav__list a:hover { color: var(--color-primary); }

.nav__actions { display: flex; align-items: center; gap: var(--sp-3); }
.nav__cta { display: none; }

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}
.nav-toggle svg { width: 24px; height: 24px; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="false"] .icon-close { display: none; }

.mobile-menu {
  position: fixed;
  inset: var(--header-h) 0 0 0;
  background: #fff;
  padding: var(--sp-6) var(--gutter);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
  z-index: 90;
  overflow-y: auto;
}
.mobile-menu.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.mobile-menu a {
  padding: var(--sp-4) 0;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-heading);
  font-size: 1.15rem;
}
.mobile-menu .btn { margin-top: var(--sp-4); }

@media (min-width: 960px) {
  .nav__list { display: flex; }
  .nav__cta { display: inline-flex; }
  .nav-toggle { display: none; }
  .mobile-menu { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  padding-block: var(--sp-10) var(--sp-12);
  background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 65%);
}
.hero .container {
  display: grid;
  gap: var(--sp-8);
  align-items: center;
}
.hero__content p.lead {
  font-size: 1.1rem;
  max-width: 55ch;
  margin-block: var(--sp-4) var(--sp-6);
}
.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin-top: var(--sp-6);
  font-size: .85rem;
  color: var(--color-ink-soft);
}
.hero__badges li {
  display: flex;
  align-items: center;
  gap: .4rem;
  background: #fff;
  border: 1px solid var(--color-border);
  padding: .4rem .8rem;
  border-radius: var(--radius-pill);
}
.hero__badges svg { width: 16px; height: 16px; color: var(--color-primary); flex-shrink: 0; }

.hero__media { position: relative; }
.hero__media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  box-shadow: var(--shadow-md);
}
.hero__media-caption {
  position: absolute;
  left: var(--sp-4);
  bottom: var(--sp-4);
  background: rgba(26,26,26,.85);
  color: #fff;
  font-size: .78rem;
  padding: .45rem .8rem;
  border-radius: var(--radius-sm);
  max-width: calc(100% - 2rem);
}

@media (min-width: 900px) {
  .hero .container { grid-template-columns: 1.1fr 1fr; }
}

/* ---------- Stats ---------- */
.stats-grid {
  display: grid;
  gap: var(--sp-5);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.stat-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-6) var(--sp-5);
  text-align: left;
}
.stat-card__num {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  color: var(--color-primary);
  display: block;
  margin-bottom: .25rem;
}
.stat-card p { color: var(--color-ink-soft); font-size: .95rem; margin: 0; overflow-wrap: anywhere; }

.learn-more-card {
  grid-column: 1 / -1;
  background: var(--color-bg-dark);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
}
.learn-more-card p { color: #d9d8d6; margin: 0; max-width: 46ch; }
.learn-more-card h3 { color: #fff; margin-bottom: .35rem; }

@media (min-width: 720px) {
  .stats-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* ---------- Quem somos ---------- */
.about .container {
  display: grid;
  gap: var(--sp-8);
  align-items: center;
}
.about__media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  box-shadow: var(--shadow-md);
}
.about__text p { margin-bottom: var(--sp-4); }
.about__text p:last-child { margin-bottom: 0; }

@media (min-width: 900px) {
  .about .container { grid-template-columns: 1fr 1.1fr; }
  .about .about__media { order: 2; }
}

/* ---------- Valores ---------- */
.values-grid {
  display: grid;
  gap: var(--sp-5);
  grid-template-columns: 1fr;
}
.value-card {
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
}
.value-card__icon {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  background: #fff;
  border-radius: var(--radius-md);
  color: var(--color-primary);
  margin-bottom: var(--sp-4);
  box-shadow: var(--shadow-sm);
}
.value-card__icon svg { width: 26px; height: 26px; }
.value-card h3 { margin-bottom: var(--sp-2); }
.value-card p { margin: 0; font-size: .95rem; }

@media (min-width: 720px) {
  .values-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1080px) {
  .values-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ---------- Serviços ---------- */
.services-intro {
  display: grid;
  gap: var(--sp-6);
  margin-bottom: var(--sp-8);
}
.services-intro__text { max-width: 760px; }
.services-intro__media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  box-shadow: var(--shadow-md);
}
@media (min-width: 900px) {
  .services-intro__media img { aspect-ratio: 2 / 1; }
}

.services-grid {
  display: grid;
  gap: var(--sp-5);
  grid-template-columns: 1fr;
}
.service-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}
.service-card__icon {
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-md);
}
.service-card__icon svg { width: 28px; height: 28px; }
.service-card ul { display: flex; flex-direction: column; gap: .4rem; font-size: .93rem; color: var(--color-ink-soft); }
.service-card ul li { padding-left: 1.2rem; position: relative; }
.service-card ul li::before {
  content: "";
  position: absolute; left: 0; top: .55em;
  width: 6px; height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
}
.service-card__note { margin-top: auto; padding-top: var(--sp-3); font-size: .88rem; }
.service-card__note a { color: var(--color-primary); font-weight: 600; }
.service-card__note a:hover { text-decoration: underline; }

@media (min-width: 720px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- Galeria "trabalho em ação" ---------- */
.gallery-grid {
  display: grid;
  gap: var(--sp-5);
  grid-template-columns: 1fr;
}
.gallery-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.gallery-item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 0;
}
.gallery-item figcaption {
  padding: var(--sp-3) var(--sp-4);
  background: #fff;
  font-size: .88rem;
  color: var(--color-ink-soft);
  border: 1px solid var(--color-border);
  border-top: none;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

@media (min-width: 720px) {
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- Como funciona ---------- */
.steps-list {
  display: grid;
  gap: var(--sp-5);
  grid-template-columns: 1fr;
  counter-reset: step;
}
.step-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  position: relative;
}
.step-card__num {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  color: var(--color-primary);
  display: block;
  margin-bottom: var(--sp-2);
  line-height: 1;
}
.step-card h3 { margin-bottom: var(--sp-2); font-size: 1.05rem; }
.step-card p { margin: 0; font-size: .93rem; }

@media (min-width: 720px) {
  .steps-list { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1080px) {
  .steps-list { grid-template-columns: repeat(5, 1fr); }
}

/* ---------- FAQ ---------- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  max-width: 820px;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0;
  overflow: hidden;
}
.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: var(--sp-5);
  font-family: var(--font-heading);
  font-size: 1.02rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .faq-icon {
  flex-shrink: 0;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  transition: transform var(--transition);
}
.faq-item[open] summary .faq-icon { transform: rotate(45deg); }
.faq-item__body {
  padding: 0 var(--sp-5) var(--sp-5);
  color: var(--color-ink-soft);
}
.faq-item__body ul { margin-top: var(--sp-2); display: flex; flex-direction: column; gap: .3rem; }
.faq-item__body ul li { padding-left: 1.1rem; position: relative; }
.faq-item__body ul li::before {
  content: "";
  position: absolute; left: 0; top: .6em;
  width: 5px; height: 5px;
  background: var(--color-primary);
  border-radius: 50%;
}

/* ---------- Localização / Contato ---------- */
.contact-grid {
  display: grid;
  gap: var(--sp-8);
}
.contact-info__media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  margin-bottom: var(--sp-5);
  box-shadow: var(--shadow-md);
}
.contact-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  margin-bottom: var(--sp-6);
}
.contact-list li {
  display: flex;
  gap: var(--sp-3);
  align-items: flex-start;
  font-size: .97rem;
}
.contact-list svg {
  width: 22px; height: 22px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: .1rem;
}
.contact-list strong { display: block; color: var(--color-ink); }

.map-frame {
  width: 100%;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.map-frame iframe { width: 100%; height: 100%; border: 0; }

@media (min-width: 960px) {
  .contact-grid { grid-template-columns: 1fr 1fr; }
}

/* ---------- CTA final ---------- */
.cta-final {
  text-align: center;
  background: var(--color-bg-dark);
  color: #fff;
}
.cta-final .container { max-width: 760px; }
.cta-final h2 { color: #fff; }
.cta-final p { color: #d9d8d6; margin-block: var(--sp-4) var(--sp-6); font-size: 1.05rem; }
.cta-final .cta-group { justify-content: center; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-ink);
  color: #d9d8d6;
  padding-block: var(--sp-10) var(--sp-6);
  font-size: .92rem;
}
.footer-grid {
  display: grid;
  gap: var(--sp-8);
  margin-bottom: var(--sp-8);
}
.footer-brand .brand__name { color: #f4f2ef; }
.footer-brand p { color: #b7b6b3; margin-top: var(--sp-3); max-width: 40ch; }
.footer-col h3 {
  color: #fff;
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: var(--sp-3);
}
.footer-col ul { display: flex; flex-direction: column; gap: .6rem; }
.footer-col a { color: #cfcfd1; transition: color var(--transition); }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid var(--color-border-dark);
  padding-top: var(--sp-5);
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  justify-content: space-between;
  color: #9c9b98;
  font-size: .82rem;
}

@media (min-width: 720px) {
  .footer-grid { grid-template-columns: 1.3fr 1fr 1fr; }
}

/* ---------- Páginas simples (privacidade / 404 / educativa) ---------- */
.page-hero {
  padding-block: var(--sp-10) var(--sp-8);
  background: var(--color-bg-alt);
  text-align: center;
}
.page-hero .eyebrow { display: block; }
.page-hero p { max-width: 60ch; margin-inline: auto; margin-top: var(--sp-3); }

.prose {
  max-width: 760px;
  margin-inline: auto;
}
.prose h2 { margin-top: var(--sp-10); margin-bottom: var(--sp-4); }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin-top: var(--sp-6); margin-bottom: var(--sp-3); }
.prose p { margin-bottom: var(--sp-4); }
.prose ul, .prose ol { margin-bottom: var(--sp-4); display: flex; flex-direction: column; gap: .5rem; padding-left: 1.4rem; }
.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose img { margin-block: var(--sp-6); box-shadow: var(--shadow-md); }
.prose figcaption { font-size: .85rem; color: var(--color-ink-muted); margin-top: var(--sp-2); }
.prose a { color: var(--color-primary); text-decoration: underline; }
.prose blockquote {
  border-left: 4px solid var(--color-primary);
  padding-left: var(--sp-4);
  color: var(--color-ink-soft);
  font-style: italic;
  margin: var(--sp-6) 0;
}

.not-found {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-block: var(--sp-12);
}
.not-found .container { max-width: 560px; }
.not-found .code {
  font-family: var(--font-heading);
  font-size: 5rem;
  color: var(--color-primary);
  line-height: 1;
}

/* ---------- WhatsApp floating button ---------- */
.whatsapp-fab {
  position: fixed;
  right: var(--sp-4);
  bottom: var(--sp-4);
  z-index: 80;
  width: 58px; height: 58px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition);
}
.whatsapp-fab:hover { transform: scale(1.06); }
.whatsapp-fab svg { width: 30px; height: 30px; }

/* Fallback sem JS: regras em <noscript><style> no <head> de cada página (sem depender de JS, sem layout shift). */