/* ============================================================
   NENEM BATERIAS – style.css
   Abordagem: MOBILE-FIRST + UX/UI premium
   Cor primária: #f7710f | Background: #010101
   ============================================================ */

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

:root {
  --primary:       #f7710f;
  --primary-dark:  #d95f0a;
  --primary-light: #ff8c35;
  --primary-glow:  rgba(247, 113, 15, 0.3);
  --black:         #010101;
  --dark:          #0d0d0d;
  --dark-2:        #141414;
  --dark-3:        #1c1c1c;
  --dark-card:     #181818;
  --border:        rgba(255,255,255,0.08);
  --text:          #e8e8e8;
  --text-muted:    #888;
  --text-light:    #bbb;
  --white:         #ffffff;
  --green:         #25d366;
  --green-dark:    #128c55;
  --radius:        14px;
  --radius-lg:     20px;
  --radius-xl:     28px;
  --shadow:        0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg:     0 12px 48px rgba(0,0,0,0.5);
  --transition:    0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font:          'Outfit', 'Inter', sans-serif;

  /* Touch targets mínimos acessíveis: 48px */
  --touch-min: 48px;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background: var(--black);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img  { display: block; max-width: 100%; }
a    { color: inherit; text-decoration: none; }
ul   { list-style: none; }

/* ─── Container ─────────────────────────────────────────────── */
.container {
  width: 100%;
  padding: 0 16px;
  margin: 0 auto;
}

/* Tablet+ */
@media (min-width: 600px)  { .container { padding: 0 24px; } }
@media (min-width: 1024px) { .container { padding: 0 32px; } }
@media (min-width: 1280px) { .container { max-width: 1240px; } }

/* ─── Utilities ─────────────────────────────────────────────── */
.text-primary { color: var(--primary); }

/* ─── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: none;
  cursor: pointer;
  font-family: var(--font);
  font-weight: 700;
  border-radius: 100px;
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
  min-height: var(--touch-min);
  padding: 12px 28px;
  font-size: 15px;
  -webkit-tap-highlight-color: transparent;
  position: relative;
  overflow: hidden;
}

/* Ripple effect */
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.1);
  opacity: 0;
  transition: opacity 0.2s;
}
.btn:active::after { opacity: 1; }

.btn--primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 4px 20px var(--primary-glow);
  letter-spacing: 0.02em;
}
.btn--primary:hover,
.btn--primary:focus-visible {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(247,113,15,0.45);
  outline: none;
}
.btn--primary:active { transform: translateY(0); }

.btn--whatsapp {
  background: linear-gradient(135deg, #25d366, #128c55);
  color: #fff;
  box-shadow: 0 4px 20px rgba(37,211,102,0.35);
  font-size: 16px;
  padding: 14px 32px;
}
.btn--whatsapp:hover,
.btn--whatsapp:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(37,211,102,0.5);
  outline: none;
}

.btn--outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.3);
  box-shadow: none;
}
.btn--outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }

.btn--sm  { padding: 10px 22px; font-size: 14px; min-height: 42px; }
.btn--lg  { padding: 16px 36px; font-size: 16px; min-height: 54px; }
.btn--xl  { padding: 18px 40px; font-size: 17px; min-height: 58px; }
.btn--block { width: 100%; }

/* ─── Animations ─────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulse-ring {
  0%   { transform: scale(1);   opacity: 0.6; }
  100% { transform: scale(2.4); opacity: 0;   }
}
@keyframes float-badge {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-5px); }
}
@keyframes scroll-bounce {
  0%, 100% { transform: translateY(0);   opacity: 1; }
  50%       { transform: translateY(6px); opacity: 0.4; }
}
@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position:  200% center; }
}

.animate-fade-up {
  opacity: 0;
  animation: fadeUp 0.7s ease forwards;
}
.animate-fade-up:nth-child(1) { animation-delay: 0.10s; }
.animate-fade-up:nth-child(2) { animation-delay: 0.22s; }
.animate-fade-up:nth-child(3) { animation-delay: 0.34s; }
.animate-fade-up:nth-child(4) { animation-delay: 0.46s; }
.animate-fade-up:nth-child(5) { animation-delay: 0.58s; }

/* ─── Section Headers ────────────────────────────────────────── */
.section-header { text-align: center; margin-bottom: 40px; }
@media (min-width: 768px) { .section-header { margin-bottom: 60px; } }

.section-badge {
  display: inline-block;
  background: rgba(247,113,15,0.12);
  color: var(--primary);
  border: 1px solid rgba(247,113,15,0.3);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section-badge--dark {
  background: rgba(0,0,0,0.5);
  border-color: rgba(247,113,15,0.35);
}

.section-title {
  font-size: clamp(26px, 6vw, 46px);
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 14px;
}

.section-subtitle {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto;
  font-weight: 400;
  line-height: 1.7;
}
@media (min-width: 768px) { .section-subtitle { font-size: 17px; } }

/* ─── Header Top Bar ──────────────────────────────────────────── */
.header__top {
  background: var(--dark-3);
  border-bottom: 1px solid var(--border);
  padding: 8px 0;
  display: none; /* oculto em mobile para limpar o topo */
}
@media (min-width: 768px) { .header__top { display: block; } }

.header__top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.header__contact-info { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

.contact-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-light);
  font-size: 13px;
  font-weight: 500;
  transition: var(--transition);
}
.contact-chip:hover            { color: var(--primary); }
.contact-chip--whatsapp:hover  { color: var(--green); }

.header__hours {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
}
.header__social { display: flex; align-items: center; gap: 8px; }

.social-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
  color: var(--text-muted);
  transition: var(--transition);
  border: 1px solid var(--border);
  -webkit-tap-highlight-color: transparent;
}
.social-btn:hover        { background: var(--primary); color: #fff; border-color: transparent; }
.social-btn--green:hover { background: var(--green);   color: #fff; border-color: transparent; }

/* ─── Header Nav ──────────────────────────────────────────────── */
.header__nav {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(1,1,1,0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.header__nav.scrolled {
  box-shadow: 0 4px 32px rgba(0,0,0,0.7);
  background: rgba(1,1,1,0.99);
}
.header__nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  gap: 16px;
}
.header__logo .logo-img { height: 53px; width: auto; }
@media (min-width: 768px) { .header__logo .logo-img { height: 61px; } }

/* ── Mobile Menu Toggle ──────────────────────────────────────── */
.nav__toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  padding: 10px 12px;
  width: var(--touch-min);
  height: var(--touch-min);
  align-items: center;
  justify-content: center;
  -webkit-tap-highlight-color: transparent;
  transition: var(--transition);
}
.nav__toggle:hover { background: rgba(247,113,15,0.1); border-color: rgba(247,113,15,0.3); }
.nav__toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}
.nav__toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Nav Menu – MOBILE ───────────────────────────────────────── */
.nav__menu {
  position: fixed;
  top: 0;
  right: -100%;
  height: 100%;
  width: min(340px, 85vw);
  background: #0f0f0f;
  flex-direction: column;
  align-items: flex-start;
  padding: 76px 28px 40px;
  gap: 4px;
  transition: right 0.35s cubic-bezier(0.4,0,0.2,1);
  border-left: 1px solid var(--border);
  z-index: 800;
  box-shadow: -8px 0 40px rgba(0,0,0,0.6);
  display: flex;
  overflow-y: auto;
}
.nav__menu.open { right: 0; }

/* Overlay escuro quando menu mobile aberto */
.nav__overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 799;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  backdrop-filter: blur(4px);
}
.nav__overlay.active { opacity: 1; pointer-events: all; }

.nav__menu-header {
  position: absolute;
  top: 20px;
  left: 28px;
  right: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__menu-logo { height: 34px; }
.nav__close {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  transition: var(--transition);
  -webkit-tap-highlight-color: transparent;
}
.nav__close:hover { background: rgba(247,113,15,0.15); color: var(--primary); }

.nav__link {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-light);
  padding: 14px 16px;
  border-radius: 12px;
  transition: var(--transition);
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: var(--touch-min);
}
.nav__link:hover,
.nav__link.active {
  color: var(--primary);
  background: rgba(247,113,15,0.08);
}

/* ── Botão WhatsApp no menu mobile ──────────────────────────── */
.nav__menu .btn--whatsapp {
  margin-top: 16px;
  width: 100%;
  font-size: 15px;
}

/* ── Desktop nav ─────────────────────────────────────────────── */
@media (min-width: 900px) {
  .nav__toggle { display: none; }
  .nav__menu {
    position: static;
    height: auto;
    width: auto;
    background: transparent;
    flex-direction: row;
    align-items: center;
    padding: 0;
    gap: 4px;
    border-left: none;
    box-shadow: none;
    overflow: visible;
  }
  .nav__menu-header,
  .nav__overlay { display: none; }
  .nav__link {
    font-size: 14px;
    padding: 8px 12px;
    width: auto;
    min-height: auto;
    position: relative;
  }
  .nav__link::after {
    content: '';
    position: absolute;
    bottom: 4px; left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 16px; height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transition: var(--transition);
  }
  .nav__link:hover,
  .nav__link.active { background: transparent; }
  .nav__link:hover::after,
  .nav__link.active::after { transform: translateX(-50%) scaleX(1); }
  .nav__menu .btn--whatsapp { margin-top: 0; width: auto; }
}

/* ─── WhatsApp CTA Mobile Fixo (Banner no topo mobile) ────────── */
.mobile-cta-bar {
  display: flex;
  background: linear-gradient(135deg, #25d366, #128c55);
  padding: 10px 16px;
  gap: 12px;
  align-items: center;
  justify-content: center;
}
@media (min-width: 768px) { .mobile-cta-bar { display: none; } }

.mobile-cta-bar a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  min-height: 40px;
}
.mobile-cta-bar a svg { flex-shrink: 0; }
.mobile-cta-bar__divider { width: 1px; height: 28px; background: rgba(255,255,255,0.3); }

/* ─── Hero Section ──────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh; /* safe viewport height */
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero__bg { position: absolute; inset: 0; z-index: 0; }
.hero__bg-img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 65% center;
  filter: brightness(0.35);
}
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(
    160deg,
    rgba(1,1,1,0.9) 0%,
    rgba(1,1,1,0.55) 55%,
    rgba(247,113,15,0.08) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  padding: 80px 0 70px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
@media (min-width: 768px) {
  .hero__content { padding: 120px 0 100px; max-width: 900px; margin: 0 auto; }
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(247,113,15,0.15);
  border: 1px solid rgba(247,113,15,0.4);
  color: var(--primary);
  padding: 7px 18px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 20px;
  animation: float-badge 3.5s ease-in-out infinite;
}

.hero__title {
  font-size: clamp(36px, 9vw, 80px);
  font-weight: 900;
  line-height: 1.05;
  color: var(--white);
  margin-bottom: 18px;
  letter-spacing: -0.02em;
}

.hero__subtitle {
  font-size: clamp(15px, 3vw, 18px);
  color: rgba(255,255,255,0.7);
  max-width: 600px;
  margin: 0 auto 36px;
  font-weight: 400;
  line-height: 1.7;
}

/* CTAs heroes – empilhados no mobile */
.hero__ctas {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 48px;
  width: 100%;
  max-width: 360px;
  align-items: center;
}
@media (min-width: 480px) {
  .hero__ctas { flex-direction: row; flex-wrap: wrap; max-width: none; justify-content: center; }
}

/* Estatísticas */
.hero__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  width: 100%;
  max-width: 580px;
  margin-bottom: 40px;
}
@media (min-width: 480px) {
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 768px) { 
  .hero__stats { display: inline-grid; width: auto; } 
}

.stat {
  text-align: center;
  padding: 16px 12px;
  border-bottom: 1px solid var(--border);
}
@media (min-width: 480px) {
  .stat { border-bottom: none; border-right: 1px solid var(--border); }
  .stat:last-child { border-right: none; }
}
.stat__number {
  display: block;
  font-size: clamp(22px, 5vw, 30px);
  font-weight: 900;
  color: var(--primary);
  line-height: 1;
}
.stat__label {
  display: block;
  font-size: 11px;
  color: rgba(255,255,255,0.5);
  margin-top: 5px;
  font-weight: 500;
  line-height: 1.3;
}

.hero__scroll-indicator {
  position: absolute;
  bottom: 28px; left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}
.scroll-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  animation: scroll-bounce 1.6s ease-in-out infinite;
}

/* ─── WhatsApp Highlight Strip ───────────────────────────────── */
.whatsapp-strip {
  background: linear-gradient(90deg, #0d0d0d 0%, #1a1a1a 100%);
  border-top: 2px solid var(--green);
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}

.whatsapp-strip__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}
@media (min-width: 600px) {
  .whatsapp-strip__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.whatsapp-strip__text {
  display: flex;
  align-items: center;
  gap: 14px;
}
.whatsapp-strip__icon {
  flex-shrink: 0;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, #25d366, #128c55);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 20px rgba(37,211,102,0.4);
}
.whatsapp-strip__label { font-size: 12px; color: var(--text-muted); font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; }
.whatsapp-strip__number { font-size: clamp(18px, 4vw, 24px); font-weight: 800; color: var(--white); }
.whatsapp-strip__number span { color: var(--green); }

/* ─── Diferenciais ────────────────────────────────────────────── */
.diferenciais {
  background: var(--dark-2);
  padding: 56px 0;
  border-bottom: 1px solid var(--border);
}

.diferenciais__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (min-width: 900px) {
  .diferenciais__grid { grid-template-columns: repeat(4, 1fr); gap: 2px; }
}

.diferencial-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 24px 20px;
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
@media (min-width: 900px) {
  .diferencial-card { flex-direction: row; align-items: flex-start; padding: 32px 24px; border-radius: 0; border: none; border-left: 1px solid var(--border); }
  .diferencial-card:first-child { border-left: none; border-radius: var(--radius) 0 0 var(--radius); }
  .diferencial-card:last-child  { border-radius: 0 var(--radius) var(--radius) 0; }
}
.diferencial-card:hover { background: rgba(247,113,15,0.06); border-color: rgba(247,113,15,0.2); }

.diferencial-card__icon {
  flex-shrink: 0;
  width: 50px; height: 50px;
  border-radius: 14px;
  background: rgba(247,113,15,0.1);
  border: 1px solid rgba(247,113,15,0.2);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
  transition: var(--transition);
}
.diferencial-card:hover .diferencial-card__icon {
  background: var(--primary); color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 18px rgba(247,113,15,0.4);
}

.diferencial-card h3 { font-size: 14px; font-weight: 700; color: var(--white); margin-bottom: 5px; }
.diferencial-card p  { font-size: 13px; color: var(--text-muted); line-height: 1.55; }

/* ─── Serviços ────────────────────────────────────────────────── */
.servicos { padding: 72px 0; background: var(--black); }
@media (min-width: 768px) { .servicos { padding: 100px 0; } }

.servicos__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
@media (min-width: 680px) { .servicos__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .servicos__grid { grid-template-columns: repeat(3, 1fr); } }

.servico-card {
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex; flex-direction: column;
}
.servico-card:hover {
  border-color: rgba(247,113,15,0.3);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.4), 0 0 24px rgba(247,113,15,0.1);
}
.servico-card--featured { border-color: rgba(247,113,15,0.2); }

.servico-card__image { position: relative; height: 200px; overflow: hidden; }
@media (min-width: 768px) { .servico-card__image { height: 220px; } }

.servico-card__image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.servico-card:hover .servico-card__image img { transform: scale(1.06); }

.servico-card__image-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(24,24,24,1) 0%, transparent 60%);
}
.servico-card__badge {
  position: absolute; top: 12px; right: 12px;
  background: var(--primary); color: #fff;
  padding: 4px 12px; border-radius: 100px;
  font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.05em;
}

.servico-card__content {
  padding: 24px;
  display: flex; flex-direction: column;
  flex: 1; gap: 14px;
}
@media (min-width: 768px) { .servico-card__content { padding: 28px; } }

.servico-card__icon-wrap {
  display: flex; align-items: center; justify-content: center;
  width: 60px; height: 60px;
  border-radius: 16px;
  background: rgba(247,113,15,0.08);
  border: 1px solid rgba(247,113,15,0.18);
}

.servico-card__title { font-size: 20px; font-weight: 800; color: var(--white); }
.servico-card__desc  { font-size: 14px; color: var(--text-muted); line-height: 1.6; flex: 1; }

/* ─── WhatsApp Contact Destacado ──────────────────────────────── */
.whatsapp-section {
  background: var(--dark-2);
  padding: 56px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.whatsapp-section__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}
@media (min-width: 768px) {
  .whatsapp-section__inner { flex-direction: row; justify-content: space-between; text-align: left; }
}

.whatsapp-section__content h2 {
  font-size: clamp(22px, 5vw, 36px);
  font-weight: 800; color: var(--white);
  margin-bottom: 8px;
}
.whatsapp-section__content p { font-size: 15px; color: var(--text-muted); }

.whatsapp-section__actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  min-width: min(300px, 100%);
}
@media (min-width: 480px) {
  .whatsapp-section__actions { flex-direction: row; width: auto; }
}

/* ─── Marcas ──────────────────────────────────────────────────── */
.marcas {
  background: var(--black);
  padding: 72px 0;
  position: relative;
}
@media (min-width: 768px) { .marcas { padding: 100px 0; } }

.marcas::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(247,113,15,0.04) 0%, transparent 70%);
}

.marcas__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative; z-index: 1;
}
@media (min-width: 480px) { .marcas__grid { grid-template-columns: repeat(4, 1fr); } }

.marca-item {
  background: #010101;
  display: flex; align-items: center; justify-content: center;
  padding: 32px 20px;
  min-height: 110px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
@media (min-width: 768px) { .marca-item { padding: 40px 28px; min-height: 130px; } }

.marca-item::before {
  content: '';
  position: absolute; inset: 0;
  background: rgba(247,113,15,0);
  transition: var(--transition);
}
.marca-item:hover::before { background: rgba(247,113,15,0.06); }

.marca-item img {
  height: 44px; width: auto;
  object-fit: contain;
  filter: brightness(1.1) saturate(0.9);
  transition: var(--transition);
  position: relative; z-index: 1;
}
@media (min-width: 768px) { .marca-item img { height: 52px; } }
.marca-item:hover img { filter: brightness(1.3) saturate(1); transform: scale(1.08); }

/* ─── Garantia Banner ─────────────────────────────────────────── */
.garantia-banner {
  position: relative;
  min-height: 360px;
  display: flex; align-items: center;
  overflow: hidden;
}
@media (min-width: 768px) { .garantia-banner { min-height: 420px; } }

.garantia-banner__bg    { position: absolute; inset: 0; z-index: 0; }
.garantia-banner__img   { width: 100%; height: 100%; object-fit: cover; object-position: center; filter: brightness(0.25); }
.garantia-banner__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(1,1,1,0.96) 0%, rgba(1,1,1,0.55) 60%, rgba(247,113,15,0.08) 100%);
}

.garantia-banner__content { position: relative; z-index: 1; }
.garantia-banner__text { max-width: 600px; }
.garantia-banner__text h2 {
  font-size: clamp(24px, 5vw, 44px);
  font-weight: 800; color: var(--white);
  margin-bottom: 18px; line-height: 1.2;
}
.garantia-banner__text p { color: rgba(255,255,255,0.65); font-size: 15px; margin-bottom: 28px; line-height: 1.7; }

.garantia-banner__actions {
  display: flex; flex-direction: column; gap: 12px; width: 100%;
}
@media (min-width: 480px) {
  .garantia-banner__actions { flex-direction: row; flex-wrap: wrap; width: auto; }
}

/* ─── Contato ─────────────────────────────────────────────────── */
.contato { padding: 72px 0; background: var(--dark-2); }
@media (min-width: 768px) { .contato { padding: 100px 0; } }

.contato__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
@media (min-width: 900px) { .contato__grid { grid-template-columns: 1fr 1fr; gap: 40px; } }

.contato__info { display: flex; flex-direction: column; gap: 16px; }

.contato-item {
  display: flex; align-items: flex-start; gap: 14px;
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  transition: var(--transition);
  min-height: var(--touch-min);
}
.contato-item:hover { border-color: rgba(247,113,15,0.25); transform: translateX(4px); }

.contato-item__icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: 12px;
  background: rgba(247,113,15,0.1);
  border: 1px solid rgba(247,113,15,0.18);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
}
.contato-item__icon--green { background: rgba(37,211,102,0.1); border-color: rgba(37,211,102,0.18); color: var(--green); }

.contato-item h4 { font-size: 11px; font-weight: 700; color: var(--primary); text-transform: uppercase; letter-spacing: 0.07em; margin-bottom: 4px; }
.contato-item p  { font-size: 14px; color: var(--text-light); line-height: 1.5; }
.contato-item a  { font-size: 14px; color: var(--text-light); transition: var(--transition); display: inline-block; min-height: 24px; }
.contato-item a:hover { color: var(--primary); }

.contato__mapa {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  min-height: 320px;
  background: var(--dark-card);
}
@media (min-width: 768px) { .contato__mapa { min-height: 440px; } }
.contato__mapa iframe { display: block; width: 100%; height: 100%; min-height: 320px; }
@media (min-width: 768px) { .contato__mapa iframe { min-height: 440px; } }

/* ─── Footer ──────────────────────────────────────────────────── */
.footer { background: #030303; border-top: 1px solid var(--border); padding-top: 60px; }
@media (min-width: 768px) { .footer { padding-top: 72px; } }

.footer__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  padding-bottom: 52px;
}
@media (min-width: 640px)  { .footer__inner { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .footer__inner { grid-template-columns: 2fr 1fr 1fr 1.5fr; } }

.footer__logo   { height: 92px; max-width: 100%; width: auto; margin-bottom: 16px; }
.footer__brand p { font-size: 14px; color: var(--text-muted); line-height: 1.6; margin-bottom: 18px; }
.footer__social  { display: flex; gap: 8px; }

.footer__links h4,
.footer__contact h4 {
  font-size: 12px; font-weight: 700; color: var(--white);
  text-transform: uppercase; letter-spacing: 0.09em; margin-bottom: 18px;
}
.footer__links ul { display: flex; flex-direction: column; gap: 10px; }
.footer__links ul li a { font-size: 14px; color: var(--text-muted); transition: var(--transition); display: inline-block; min-height: 24px; }
.footer__links ul li a:hover { color: var(--primary); padding-left: 4px; }

.footer__contact p { display: flex; align-items: flex-start; gap: 8px; font-size: 14px; color: var(--text-muted); margin-bottom: 12px; line-height: 1.5; }
.footer__contact p svg { flex-shrink: 0; margin-top: 2px; color: var(--primary); }
.footer__contact a { color: var(--text-muted); transition: var(--transition); }
.footer__contact a:hover { color: var(--primary); }

.footer__bottom { border-top: 1px solid var(--border); padding: 20px 0; }
.footer__bottom-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.footer__bottom p { font-size: 13px; color: var(--text-muted); }
.footer__bottom strong { color: var(--primary); }

/* ─── WhatsApp Flutuante ──────────────────────────────────────── */
.whatsapp-float {
  position: fixed;
  bottom: 24px; right: 20px;
  z-index: 1000;
  width: 62px; height: 62px;
  border-radius: 50%;
  background: linear-gradient(135deg, #25d366, #128c55);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,0.55);
  transition: var(--transition);
  -webkit-tap-highlight-color: transparent;
}
@media (min-width: 768px) {
  .whatsapp-float { bottom: 32px; right: 32px; width: 66px; height: 66px; }
}
.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 32px rgba(37,211,102,0.7);
}
.whatsapp-float:active { transform: scale(0.96); }
.whatsapp-float__pulse {
  position: absolute; inset: 0;
  border-radius: 50%;
  border: 2px solid var(--green);
  animation: pulse-ring 2.2s ease-out infinite;
}

/* Label de WhatsApp no float (desktop) */
.whatsapp-float__label {
  display: none;
}
@media (min-width: 768px) {
  .whatsapp-float {
    width: auto;
    height: 54px;
    border-radius: 100px;
    padding: 0 20px 0 16px;
    gap: 10px;
  }
  .whatsapp-float__label {
    display: block;
    font-size: 14px;
    font-weight: 700;
    white-space: nowrap;
  }
  .whatsapp-float__pulse { display: none; }
}

/* ─── Focus Visible Accessibility ────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 4px;
}

.footer__bottom-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  padding: 20px 0;
}

.footer__signature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-muted);
}
.signature-logo {
  height: 24px;
  width: auto;
  filter: brightness(0) invert(1);
  opacity: 0.7;
  transition: var(--transition);
}
.signature-logo:hover {
  opacity: 1;
}