/* ==========================================================================
   DESIGN SYSTEM - MATHEUS GOMES (SOLUÇÕES ACÚSTICAS)
   Estilo: Ultra-Premium, Dark Mode Nativo, Estilo Audium
   ========================================================================== */

/* Importação de Fontes do Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Montserrat:wght@400;500;600;700;800;900&display=swap');

:root {
  /* Paleta de Cores */
  --bg-primary: #040814;          /* Fundo preto-azulado profundo */
  --bg-secondary: #0b1120;        /* Fundo secundário para seções */
  --bg-card: rgba(15, 23, 42, 0.4); /* Fundo de card translúcido */
  --accent-orange: #ff7a1a;       /* Laranja Acústico Vibrante */
  --accent-orange-hover: #e06000; /* Laranja Hover */
  --accent-orange-alpha: rgba(255, 122, 26, 0.1);
  --accent-blue: #1e3a8a;         /* Azul Marinho Engenharia */
  --accent-blue-light: #3b82f6;   /* Azul Royal Técnico */
  --border-color: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 122, 26, 0.25);
  
  /* Cores de Texto */
  --text-primary: #ffffff;
  --text-secondary: #94a3b8;      /* Cinza Slate-400 para leitura confortável */
  --text-muted: #64748b;         /* Cinza Slate-500 para legendas */
  
  /* Fontes */
  --font-title: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Transições padrão */
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease;
  
  /* Efeito de Vidro */
  --glass-effect: saturate(180%) blur(12px);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

/* ==========================================================================
   RESETS & CONFIGURAÇÕES GLOBAIS
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-secondary);
  line-height: 1.65;
  overflow-x: hidden;
}

/* Scrollbar Personalizada */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: #1e293b;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-orange);
}

/* Cabeçalhos e Títulos */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-title);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
}

p {
  margin-bottom: 1rem;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

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

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Botões */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 32px;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-smooth);
  border: 1px solid transparent;
  gap: 10px;
}

.btn-primary {
  background-color: var(--accent-orange);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(255, 122, 26, 0.25);
}

.btn-primary:hover {
  background-color: var(--accent-orange-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(255, 122, 26, 0.4);
}

.btn-secondary {
  background-color: transparent;
  border-color: var(--border-color);
  color: var(--text-primary);
  backdrop-filter: var(--glass-effect);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.05);
  border-color: var(--accent-orange);
  color: var(--accent-orange);
  transform: translateY(-2px);
}

/* ==========================================================================
   CABEÇALHO (HEADER)
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: var(--transition-smooth);
  border-bottom: 1px solid transparent;
  padding: 20px 0;
}

.site-header.scrolled {
  background-color: rgba(4, 8, 20, 0.85);
  backdrop-filter: var(--glass-effect);
  border-bottom: 1px solid var(--border-color);
  padding: 14px 0;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-link img {
  height: 48px;
  width: auto;
  transition: var(--transition-smooth);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 32px;
  align-items: center;
}

.nav-link {
  font-family: var(--font-title);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  position: relative;
  padding: 8px 0;
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-orange);
  transition: var(--transition-smooth);
}

.nav-link:hover::after {
  width: 100%;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  padding-top: 100px;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg,
    rgba(4, 8, 20, 0.7) 0%,
    rgba(4, 8, 20, 0.9) 70%,
    var(--bg-primary) 100%
  );
  z-index: 1;
}

.hero-container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
  width: 100%;
}

.hero-content {
  max-width: 580px;
}

.hero-tag {
  display: inline-block;
  font-family: var(--font-title);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--accent-orange);
  text-transform: uppercase;
  margin-bottom: 16px;
  background-color: var(--accent-orange-alpha);
  padding: 6px 16px;
  border-radius: 20px;
  border: 1px solid rgba(255, 122, 26, 0.2);
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 24px;
  background: linear-gradient(135deg, #ffffff 60%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  font-weight: 400;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
}

.hero-lottie-container {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-lottie-wrapper {
  width: 320px;
  height: 320px;
  position: relative;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,122,26,0.06) 0%, transparent 70%);
}

.hero-lottie-wrapper::after {
  content: '';
  position: absolute;
  top: -10%;
  left: -10%;
  right: -10%;
  bottom: -10%;
  border: 1px dashed rgba(255, 122, 26, 0.15);
  border-radius: 50%;
  animation: spin 60s linear infinite;
  pointer-events: none;
}

/* ==========================================================================
   SEÇÕES GERAIS
   ========================================================================== */
.section {
  padding: 120px 0;
  position: relative;
}

.section-bg-alt {
  background-color: var(--bg-secondary);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 80px auto;
}

.section-tag {
  font-family: var(--font-title);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--accent-orange);
  text-transform: uppercase;
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   GRID DE SOLUÇÕES (SERVIÇOS)
   ========================================================================== */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.solution-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 40px;
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
  overflow: hidden;
  transition: var(--transition-smooth);
  backdrop-filter: var(--glass-effect);
  box-shadow: var(--glass-shadow);
}

.solution-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255, 122, 26, 0.05) 0%, transparent 100%);
  opacity: 0;
  transition: var(--transition-smooth);
  z-index: 0;
}

.solution-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-hover);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5), 0 0 24px rgba(255, 122, 26, 0.08);
}

.solution-card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 60px;
  height: 60px;
  background-color: rgba(255, 122, 26, 0.08);
  border: 1px solid rgba(255, 122, 26, 0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-orange);
  font-size: 1.5rem;
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
  transition: var(--transition-smooth);
}

.solution-card:hover .card-icon {
  background-color: var(--accent-orange);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(255, 122, 26, 0.3);
  transform: scale(1.05);
}

.card-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.card-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
  flex-grow: 1;
}

.card-list {
  list-style: none;
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card-list-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.card-list-item svg {
  width: 16px;
  height: 16px;
  fill: var(--accent-orange);
  margin-top: 3px;
  flex-shrink: 0;
}

/* ==========================================================================
   SEÇÃO NBR 15575
   ========================================================================== */
.nbr-container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}

.nbr-content h2 {
  font-size: 2.25rem;
  margin-bottom: 24px;
}

.nbr-description {
  font-size: 1.05rem;
  margin-bottom: 32px;
}

.nbr-benefits-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  list-style: none;
}

.nbr-benefit-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 24px;
  border-radius: 12px;
  transition: var(--transition-smooth);
}

.nbr-benefit-card:hover {
  border-color: rgba(59, 130, 246, 0.3); /* Destaque azul de engenharia no hover */
  background: rgba(15, 23, 42, 0.6);
  transform: translateY(-2px);
}

.benefit-icon-wrapper {
  color: var(--accent-blue-light);
  margin-bottom: 12px;
  font-size: 1.3rem;
  display: flex;
}

.benefit-title {
  font-family: var(--font-title);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.benefit-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.nbr-badge-box {
  background: linear-gradient(135deg, #101b35 0%, #060a12 100%);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 48px;
  position: relative;
  overflow: hidden;
  text-align: center;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.nbr-badge-box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 122, 26, 0.04) 0%, transparent 60%);
  pointer-events: none;
}

.badge-tag {
  font-family: var(--font-title);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--accent-orange);
  text-transform: uppercase;
  margin-bottom: 16px;
  display: inline-block;
  border: 1px solid rgba(255, 122, 26, 0.3);
  padding: 4px 16px;
  border-radius: 20px;
}

.badge-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.badge-hours {
  font-size: 4.5rem;
  font-weight: 900;
  font-family: var(--font-title);
  color: var(--text-primary);
  line-height: 1;
  margin: 16px 0;
  background: linear-gradient(135deg, var(--accent-orange) 0%, #ff9e59 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.badge-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

/* ==========================================================================
   SEÇÃO INSTITUCIONAL (SOBRE)
   ========================================================================== */
.about-container {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 60px;
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-photo-wrapper {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  border: 1px solid var(--border-color);
}

.about-photo {
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.about-photo-wrapper:hover .about-photo {
  transform: scale(1.03);
}

.about-crea-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  background-color: rgba(4, 8, 20, 0.85);
  border: 1px solid var(--border-color);
  backdrop-filter: var(--glass-effect);
  padding: 10px 20px;
  border-radius: 8px;
  font-family: var(--font-title);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.5px;
}

.about-manifesto {
  margin-top: 32px;
  border-left: 2px solid var(--accent-orange);
  padding-left: 24px;
}

.manifesto-quote {
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-style: italic;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: 8px;
}

.about-content h2 {
  font-size: 2.25rem;
  margin-bottom: 28px;
}

.about-text {
  font-size: 1rem;
  margin-bottom: 32px;
}

/* Video Placeholder Estilizado */
.video-placeholder {
  position: relative;
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, #0f172a 0%, #050811 100%);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.video-placeholder::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle, rgba(255, 122, 26, 0.08) 0%, transparent 80%);
  transition: var(--transition-smooth);
}

.video-placeholder:hover {
  border-color: rgba(255, 122, 26, 0.3);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
}

.play-btn {
  width: 54px;
  height: 54px;
  background-color: var(--accent-orange);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 1.1rem;
  margin-bottom: 12px;
  position: relative;
  z-index: 2;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 15px rgba(255, 122, 26, 0.4);
}

.video-placeholder:hover .play-btn {
  transform: scale(1.1);
  background-color: var(--accent-orange-hover);
  box-shadow: 0 6px 20px rgba(255, 122, 26, 0.6);
}

.video-placeholder span {
  font-family: var(--font-title);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-primary);
  position: relative;
  z-index: 2;
}

/* ==========================================================================
   PÁGINA DE CONTATO (ESTRUTURA)
   ========================================================================== */
.contact-hero {
  padding: 160px 0 80px 0;
  text-align: center;
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 60px;
  margin-bottom: 120px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 32px;
  border-radius: 16px;
  backdrop-filter: var(--glass-effect);
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 24px;
}

.contact-info-item:last-child {
  margin-bottom: 0;
}

.info-icon {
  width: 44px;
  height: 44px;
  background-color: var(--accent-orange-alpha);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-orange);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.info-details h4 {
  font-family: var(--font-title);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.info-details p, .info-details a {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.info-details a:hover {
  color: var(--accent-orange);
}

/* Formulário de Contato */
.contact-form-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 48px;
  border-radius: 16px;
  backdrop-filter: var(--glass-effect);
  box-shadow: var(--glass-shadow);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-family: var(--font-title);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  background-color: rgba(4, 8, 20, 0.6);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 14px 18px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-orange);
  box-shadow: 0 0 10px rgba(255, 122, 26, 0.15);
  background-color: rgba(4, 8, 20, 0.8);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.form-submit-btn {
  width: 100%;
}

/* ==========================================================================
   RODAPÉ (FOOTER)
   ========================================================================== */
.site-footer {
  background-color: #02040a;
  border-top: 1px solid var(--border-color);
  padding: 80px 0 40px 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}

.footer-brand p {
  margin-top: 16px;
  font-size: 0.9rem;
  max-width: 320px;
}

.footer-logo img {
  height: 44px;
  width: auto;
}

.footer-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: 0.5px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer-link:hover {
  color: var(--accent-orange);
  padding-left: 4px;
}

.footer-contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9rem;
}

.footer-contact-item svg {
  width: 18px;
  height: 18px;
  fill: var(--accent-orange);
  margin-top: 2px;
}

.footer-contact-item a:hover {
  color: var(--accent-orange);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-crea {
  font-family: var(--font-title);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  padding: 6px 16px;
  border-radius: 4px;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-socials {
  display: flex;
  gap: 12px;
}

.social-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1rem;
  transition: var(--transition-fast);
}

.social-icon:hover {
  background-color: var(--accent-orange);
  color: #ffffff;
  border-color: var(--accent-orange);
  transform: translateY(-2px);
}

/* ==========================================================================
   ELEMENTOS INTERATIVOS & AUXILIARES
   ========================================================================== */
/* Botão Flutuante de WhatsApp */
.whatsapp-float {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 60px;
  height: 60px;
  background-color: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 2rem;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: var(--transition-smooth);
}

.whatsapp-float:hover {
  transform: scale(1.1) rotate(8deg);
  background-color: #20ba5a;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

.whatsapp-float::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 2px solid #25d366;
  top: 0;
  left: 0;
  z-index: -1;
  opacity: 0.7;
  animation: pulse-ring 2s infinite;
}



/* ==========================================================================
   KEYFRAMES & ANIMAÇÕES
   ========================================================================== */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.25); opacity: 0; }
  100% { transform: scale(1.25); opacity: 0; }
}

/* ==========================================================================
   MEDIA QUERIES (RESPONSIVIDADE)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
    padding-top: 40px;
  }
  
  .hero-content {
    margin: 0 auto;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .solutions-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .nbr-container {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .about-container {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .about-visual {
    order: 2;
    max-width: 500px;
    margin: 0 auto;
  }
  
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .site-header {
    padding: 16px 0;
  }
  
  .nav-menu {
    display: none; /* Em ambiente real implementaríamos menu mobile, mas para landing page simplificamos */
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero-title {
    font-size: 2.4rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .solutions-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  
  .footer-top {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}