/* ============================================
   PROVALIS ENGENHARIA E AVALIAÇÕES
   Landing Page - CSS Completo
   ============================================ */


/* ============================================
   1. VARIÁVEIS CSS (Design Tokens)
   ============================================ */

:root {
  /* Cores Principais */
  --color-primary: #0D121A;        /* Azul Escuro */
  --color-accent: #D4A451;         /* Dourado */
  --color-neutral-light: #B0B7C3;  /* Prata/Cinza Claro */
  --color-neutral-dark: #2A2F3A;   /* Cinza Carvão */
  --color-white: #FFFFFF;          /* Branco */
  
  /* Cores de Suporte */
  --color-success: #10B981;        /* Verde */
  --color-warning: #F59E0B;        /* Laranja */
  --color-error: #EF4444;          /* Vermelho */
  --color-whatsapp: #25D366;       /* Verde WhatsApp */
  
  /* Gradientes */
  --gradient-hero: linear-gradient(135deg, #0D121A 0%, #1A2332 50%, #0D121A 100%);
  --gradient-gold: linear-gradient(135deg, #D4A451 0%, #E8C87C 100%);
  --gradient-gold-reverse: linear-gradient(135deg, #E8C87C 0%, #D4A451 100%);
  --gradient-blue: linear-gradient(180deg, #0D121A 0%, #2A2F3A 100%);
  --gradient-whatsapp: linear-gradient(135deg, #25D366 0%, #1EBE57 100%);
  
  /* Tipografia */
  --font-primary: 'Montserrat', sans-serif;
  --font-secondary: 'Roboto', sans-serif;
  --font-mono: 'Roboto Mono', monospace;
  
  /* Tamanhos de Fonte - Desktop */
  --font-size-h1: 56px;
  --font-size-h2: 42px;
  --font-size-h3: 28px;
  --font-size-h4: 20px;
  --font-size-body: 18px;
  --font-size-small: 16px;
  --font-size-tiny: 14px;
  
  /* Espaçamentos */
  --spacing-section: 120px;
  --spacing-large: 80px;
  --spacing-medium: 48px;
  --spacing-small: 32px;
  --spacing-tiny: 24px;
  
  /* Container */
  --container-max-width: 1200px;
  
  /* Sombras */
  --shadow-small: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-medium: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-large: 0 12px 24px rgba(0, 0, 0, 0.15);
  --shadow-gold: 0 4px 12px rgba(212, 164, 81, 0.3);
  --shadow-whatsapp: 0 4px 12px rgba(37, 211, 102, 0.3);
  
  /* Border Radius */
  --radius-small: 8px;
  --radius-medium: 12px;
  --radius-large: 16px;
  --radius-pill: 24px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
/* ============================================
   LOGO COM IMAGEM - ESTILOS
   ============================================ */

.logo {
  margin-bottom: 48px;
}

.logo-image {
  max-width: 300px;
  height: auto;
  margin: 0 auto;
  display: block;
  filter: drop-shadow(0 4px 12px rgba(212, 164, 81, 0.3));
}

/* Responsividade do Logo */
@media (max-width: 767px) {
  .logo-image {
    max-width: 220px;
  }
}

/* ============================================
   2. RESET E BASE
   ============================================ */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-secondary);
  font-size: var(--font-size-body);
  line-height: 1.7;
  color: var(--color-neutral-dark);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-normal);
}

a:hover {
  color: var(--color-primary);
}

ul, ol {
  list-style-position: inside;
}

strong {
  font-weight: 600;
}


/* ============================================
   3. TIPOGRAFIA GLOBAL
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

h1 {
  font-size: var(--font-size-h1);
  line-height: 1.2;
}

h2 {
  font-size: var(--font-size-h2);
}

h3 {
  font-size: var(--font-size-h3);
  font-weight: 600;
}

h4 {
  font-size: var(--font-size-h4);
  font-weight: 500;
}

p {
  margin-bottom: 1rem;
}


/* ============================================
   4. LAYOUT GLOBAL
   ============================================ */

.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--spacing-section) 0;
}


/* ============================================
   5. COMPONENTES REUTILIZÁVEIS
   ============================================ */

/* ----- Botões ----- */

.btn-primary,
.btn-secondary,
.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 18px 40px;
  font-family: var(--font-primary);
  font-size: var(--font-size-body);
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  border: none;
  border-radius: var(--radius-small);
  cursor: pointer;
  transition: all var(--transition-smooth);
}

.btn-primary {
  color: var(--color-white);
  background: var(--gradient-gold);
  box-shadow: var(--shadow-gold), 0 8px 24px rgba(212, 164, 81, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(212, 164, 81, 0.4), 0 12px 32px rgba(212, 164, 81, 0.3);
  background: var(--gradient-gold-reverse);
  color: var(--color-white);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-whatsapp {
  background: var(--gradient-whatsapp);
  box-shadow: var(--shadow-whatsapp);
  color: var(--color-white);
}

.btn-whatsapp:hover {
  background: linear-gradient(135deg, #1EBE57 0%, #25D366 100%);
  box-shadow: 0 6px 16px rgba(37, 211, 102, 0.4), 0 12px 32px rgba(37, 211, 102, 0.3);
  color: var(--color-white);
}

.btn-secondary {
  color: var(--color-accent);
  background: transparent;
  border: 2px solid var(--color-accent);
  padding: 14px 32px;
  font-size: var(--font-size-small);
}

.btn-secondary:hover {
  color: var(--color-white);
  background: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(212, 164, 81, 0.25);
}

.btn-large {
  padding: 22px 48px;
  font-size: 20px;
}

.btn-primary svg,
.btn-whatsapp svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}


/* ----- Badges ----- */

.badge-success,
.badge-warning,
.badge-premium {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-tiny);
  font-weight: 500;
}

.badge-success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--color-success);
  color: var(--color-success);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid var(--color-warning);
  color: var(--color-warning);
}

.badge-premium {
  background: var(--gradient-gold);
  border: none;
  color: var(--color-white);
  box-shadow: 0 2px 8px rgba(212, 164, 81, 0.3);
}

.badge-success svg,
.badge-warning svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}


/* ----- Números Destacados ----- */

.highlight-number {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 120%;
  color: var(--color-accent);
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}


/* ----- Ícones com Background ----- */

.icon-wrapper {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-large);
  background: var(--gradient-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 16px rgba(212, 164, 81, 0.25);
  margin-bottom: var(--spacing-tiny);
}

.icon-wrapper svg {
  width: 32px;
  height: 32px;
  color: var(--color-white);
}


/* ============================================
   6. SEÇÃO 1: HERO SECTION
   ============================================ */

.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  background-image: 
    linear-gradient(30deg, #1A2332 12%, transparent 12.5%, transparent 87%, #1A2332 87.5%, #1A2332),
    linear-gradient(150deg, #1A2332 12%, transparent 12.5%, transparent 87%, #1A2332 87.5%, #1A2332);
  background-size: 80px 140px;
  background-position: 0 0, 40px 70px;
  padding: 60px 0;
  text-align: center;
  overflow: hidden;
}

.hero-background-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg, 
    rgba(13, 18, 26, 0.92) 0%, 
    rgba(13, 18, 26, 0.75) 50%,
    rgba(13, 18, 26, 0.92) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.logo {
  margin-bottom: 40px;
}

.logo img {
  margin: 0 auto;
}

.logo-text {
  font-family: var(--font-primary);
  font-size: 48px;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 2px;
}

.hero-headline {
  color: var(--color-white);
  max-width: 900px;
  margin: 0 auto 24px;
  font-size: var(--font-size-h1);
  line-height: 1.2;
}

.hero-subheadline {
  color: var(--color-neutral-light);
  font-size: 20px;
  font-weight: 300;
  line-height: 1.6;
  max-width: 800px;
  margin: 0 auto 40px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
  padding: 10px 20px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-pill);
  color: var(--color-white);
  font-size: var(--font-size-tiny);
  backdrop-filter: blur(10px);
}

.hero-badge svg {
  width: 20px;
  height: 20px;
  color: var(--color-success);
}


/* ============================================
   7. SEÇÃO 2: PROBLEM SECTION
   ============================================ */

.problem-section {
  background: var(--color-white);
}

.section-headline {
  text-align: center;
  max-width: 900px;
  margin: 0 auto 60px;
  color: var(--color-primary);
}

.section-subheadline {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 60px;
  font-size: 20px;
  font-weight: 300;
  color: var(--color-neutral-dark);
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-small);
  margin-bottom: var(--spacing-medium);
}

.problem-card {
  background: #F9FAFB;
  padding: 40px 32px;
  border-radius: var(--radius-medium);
  border-left: 4px solid var(--color-warning);
  transition: all var(--transition-smooth);
}

.problem-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-medium);
}

.problem-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.problem-card h3 {
  color: var(--color-primary);
  margin-bottom: 16px;
  font-size: 24px;
}

.problem-card p {
  color: var(--color-neutral-dark);
  line-height: 1.7;
}

.problem-consequence {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid #E5E7EB;
  color: var(--color-neutral-dark);
  font-size: var(--font-size-small);
}

.cta-secondary {
  text-align: center;
  margin-top: var(--spacing-medium);
}


/* ============================================
   8. SEÇÃO 3: SOLUTION SECTION
   ============================================ */

.solution-section {
  background: var(--color-primary);
  background-image: 
    linear-gradient(30deg, #1A2332 12%, transparent 12.5%, transparent 87%, #1A2332 87.5%, #1A2332),
    linear-gradient(150deg, #1A2332 12%, transparent 12.5%, transparent 87%, #1A2332 87.5%, #1A2332);
  background-size: 80px 140px;
  background-position: 0 0, 40px 70px;
  color: var(--color-white);
}

.solution-section .section-headline {
  color: var(--color-white);
}

.solution-section .section-subheadline {
  color: var(--color-neutral-light);
}

.pillars-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-medium);
  margin-top: 60px;
}

.pillar-card {
  background: rgba(255, 255, 255, 0.05);
  padding: 48px 32px;
  border-radius: var(--radius-medium);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  transition: all var(--transition-smooth);
  text-align: center;
}

.pillar-card:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.pillar-card .icon-wrapper {
  margin: 0 auto 24px;
}

.pillar-card h3 {
  color: var(--color-white);
  margin-bottom: 16px;
  font-size: 24px;
}

.pillar-card p {
  color: var(--color-neutral-light);
  line-height: 1.7;
}

.impact-statement {
  margin-top: 60px;
  padding: 40px;
  text-align: center;
  background: rgba(212, 164, 81, 0.1);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-medium);
}

.impact-statement p {
  font-size: 22px;
  font-weight: 500;
  color: var(--color-accent);
  line-height: 1.6;
  margin: 0;
}


/* ============================================
   9. SEÇÃO 4: SERVICES SECTION
   ============================================ */

.services-section {
  background: var(--color-white);
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-medium);
  margin-bottom: var(--spacing-medium);
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-medium);
  border-top: 4px solid var(--color-accent);
  padding: 40px 32px;
  box-shadow: 
    0 4px 6px rgba(0, 0, 0, 0.05),
    0 10px 20px rgba(0, 0, 0, 0.08);
  transition: all var(--transition-smooth);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 
    0 12px 24px rgba(0, 0, 0, 0.12),
    0 24px 48px rgba(212, 164, 81, 0.15);
}

.service-icon {
  font-size: 56px;
  margin-bottom: 20px;
}

.service-card h3 {
  color: var(--color-primary);
  margin-bottom: 16px;
  font-size: 26px;
}

.service-description {
  font-size: 18px;
  color: var(--color-neutral-dark);
  margin-bottom: 24px;
  font-weight: 500;
}

.service-card h4 {
  color: var(--color-primary);
  margin-top: 24px;
  margin-bottom: 12px;
  font-size: 18px;
}

.service-benefits,
.service-ideal {
  list-style: none;
  margin-bottom: 20px;
}

.service-benefits li,
.service-ideal li {
  padding-left: 0;
  margin-bottom: 10px;
  color: var(--color-neutral-dark);
  line-height: 1.6;
}

.service-delivery {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #E5E7EB;
  color: var(--color-neutral-dark);
  font-size: var(--font-size-small);
}

.service-card .btn-secondary {
  margin-top: 24px;
  width: 100%;
}

.cta-center {
  text-align: center;
  margin-top: 60px;
}

.whatsapp-number {
  display: block;
  margin-top: 16px;
  font-size: var(--font-size-body);
  color: var(--color-neutral-dark);
  font-weight: 500;
}


/* ============================================
   10. SEÇÃO 5: SOCIAL PROOF
   ============================================ */

.social-proof-section {
  background: #F9FAFB;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-small);
}

.testimonial-card {
  background: var(--color-white);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-small);
  padding: 32px 28px;
  box-shadow: var(--shadow-small);
  position: relative;
  transition: all var(--transition-smooth);
}

.testimonial-card:hover {
  box-shadow: var(--shadow-medium);
  transform: translateY(-4px);
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 16px;
  left: 16px;
  font-size: 72px;
  font-family: Georgia, serif;
  color: rgba(212, 164, 81, 0.15);
  line-height: 1;
  z-index: 0;
}

.testimonial-icon {
  font-size: 32px;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.testimonial-card h4 {
  color: var(--color-primary);
  margin-bottom: 16px;
  font-size: 20px;
  position: relative;
  z-index: 1;
}

.testimonial-quote {
  margin-bottom: 20px;
  color: var(--color-neutral-dark);
  font-size: var(--font-size-small);
  line-height: 1.6;
  position: relative;
  z-index: 1;
}

.testimonial-author {
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 4px;
  font-size: var(--font-size-small);
}

.testimonial-role {
  font-size: var(--font-size-tiny);
  color: var(--color-neutral-light);
}


/* ============================================
   11. SEÇÃO 6: AUTHORITY
   ============================================ */

.authority-section {
  background: var(--color-white);
}

.authority-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-medium);
}

.authority-card {
  text-align: center;
  padding: 32px 24px;
  background: #F9FAFB;
  border-radius: var(--radius-medium);
  transition: all var(--transition-smooth);
}

.authority-card:hover {
  background: var(--color-white);
  box-shadow: var(--shadow-medium);
  transform: translateY(-4px);
}

.authority-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.authority-card h3 {
  color: var(--color-primary);
  margin-bottom: 12px;
  font-size: 22px;
}

.authority-card p {
  color: var(--color-neutral-dark);
  line-height: 1.7;
  font-size: var(--font-size-small);
}


/* ============================================
   12. SEÇÃO 7: FAQ
   ============================================ */

.faq-section {
  background: #F9FAFB;
}

.faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-white);
  border-radius: var(--radius-small);
  padding: 32px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-small);
  transition: all var(--transition-smooth);
}

.faq-item:hover {
  box-shadow: var(--shadow-medium);
}

.faq-question {
  color: var(--color-primary);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.faq-answer {
  color: var(--color-neutral-dark);
  line-height: 1.7;
}

.faq-answer p {
  margin-bottom: 16px;
}

.faq-answer ul {
  margin-left: 20px;
  margin-bottom: 16px;
}

.faq-answer li {
  margin-bottom: 8px;
}


/* ============================================
   13. SEÇÃO 8: FINAL CTA
   ============================================ */

.final-cta-section {
  background: var(--gradient-blue);
  color: var(--color-white);
  text-align: center;
}

.final-cta-section .section-headline {
  color: var(--color-white);
}

.final-cta-text {
  font-size: 20px;
  line-height: 1.7;
  max-width: 800px;
  margin: 0 auto 24px;
  color: var(--color-neutral-light);
}

.whatsapp-number-large {
  display: block;
  margin-top: 20px;
  font-size: 24px;
  color: var(--color-white);
  font-weight: 600;
}

.guarantee-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-top: 40px;
}

.support-line {
  margin-top: 32px;
  font-size: var(--font-size-small);
  color: var(--color-neutral-light);
}

.support-line a {
  color: var(--color-accent);
  font-weight: 600;
}


/* ============================================
   14. SEÇÃO 9: FOOTER
   ============================================ */

.footer {
  background: var(--color-primary);
  color: var(--color-neutral-light);
  padding: 60px 0 40px;
  text-align: center;
}

.footer-logo {
  margin-bottom: 24px;
}

.footer-logo img {
  margin: 0 auto;
  opacity: 0.9;
}

.footer-logo-image {
  max-width: 200px;
  height: auto;
  margin: 0 auto 24px;
  display: block;
  opacity: 0.9;
  filter: brightness(1.2) drop-shadow(0 2px 8px rgba(0, 0, 0, 0.3));
}

@media (max-width: 767px) {
  .footer-logo-image {
    max-width: 160px;
  }
}

.footer-title {
  color: var(--color-white);
  font-size: 24px;
  margin-bottom: 12px;
}

.footer-tagline {
  font-size: var(--font-size-small);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.6;
}

.footer-contact {
  margin-bottom: 32px;
}

.footer-contact p {
  margin-bottom: 20px;
  line-height: 1.8;
}

.footer-contact a {
  color: var(--color-accent);
  font-weight: 500;
}

.footer-contact a:hover {
  color: var(--color-white);
}

.footer-links {
  margin-bottom: 24px;
  font-size: var(--font-size-tiny);
}

.footer-links a {
  color: var(--color-neutral-light);
  margin: 0 8px;
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-copyright {
  font-size: var(--font-size-tiny);
  color: var(--color-neutral-light);
  opacity: 0.7;
}
/* Botão Copiar E-mail */
.email-display {
  color: var(--color-accent);
  font-weight: 500;
}

.btn-copy-email {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: 12px;
  padding: 6px 12px;
  background: var(--color-accent);
  color: var(--color-white);
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: var(--font-secondary);
}

.btn-copy-email:hover {
  background: var(--color-white);
  color: var(--color-accent);
  transform: translateY(-2px);
}

.btn-copy-email svg {
  width: 16px;
  height: 16px;
}

.email-copied-message {
  display: none;
  margin-left: 12px;
  color: var(--color-success);
  font-size: 13px;
  font-weight: 600;
  animation: fadeInOut 2s ease;
}

.email-copied-message.show {
  display: inline;
}

@keyframes fadeInOut {
  0% { opacity: 0; }
  20% { opacity: 1; }
  80% { opacity: 1; }
  100% { opacity: 0; }
}

/* Responsividade mobile */
@media (max-width: 767px) {
  .btn-copy-email {
    display: flex;
    margin-left: 0;
    margin-top: 8px;
    width: 100%;
    justify-content: center;
  }
  
  .email-copied-message {
    display: block;
    margin-left: 0;
    margin-top: 8px;
    text-align: center;
  }
}

/* ============================================
   15. ANIMAÇÕES
   ============================================ */

/* Fade-in ao Scroll */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Pulse Shadow nos CTAs */
@keyframes pulse-shadow {
  0%, 100% {
    box-shadow: 0 4px 12px rgba(212, 164, 81, 0.3);
  }
  50% {
    box-shadow: 0 4px 20px rgba(212, 164, 81, 0.5);
  }
}

.btn-primary {
  animation: pulse-shadow 3s ease-in-out infinite;
}

/* Hover Underline */
a {
  position: relative;
}

.footer-links a::after,
.support-line a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-normal);
}

.footer-links a:hover::after,
.support-line a:hover::after {
  width: 100%;
}


/* ============================================
   16. RESPONSIVIDADE
   ============================================ */

/* Tablet (768px - 1023px) */
@media (min-width: 768px) {
  .container {
    padding: 0 40px;
  }
  
  .section {
    padding: 80px 0;
  }
  
  .problem-grid,
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
  
  .authority-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
  .container {
    padding: 0 60px;
  }
  
  .section {
    padding: var(--spacing-section) 0;
  }
  
  .problem-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
  }
  
  .pillars-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
  }
  
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
  }
  
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
  
  .authority-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 48px;
  }
}

/* Mobile (<768px) */
@media (max-width: 767px) {
  :root {
    --font-size-h1: 36px;
    --font-size-h2: 30px;
    --font-size-h3: 22px;
    --font-size-h4: 18px;
    --font-size-body: 16px;
    --font-size-small: 15px;
    --spacing-section: 60px;
  }
  
  .hero-section {
    min-height: auto;
    padding: 80px 0 60px;
  }
  
  .hero-headline {
    font-size: 32px;
    line-height: 1.3;
  }
  
  .hero-subheadline {
    font-size: 17px;
  }
  
  .btn-primary,
  .btn-whatsapp {
    width: 100%;
    padding: 16px 32px;
    font-size: 16px;
  }
  
  .btn-large {
    padding: 18px 36px;
    font-size: 18px;
  }
  
  .service-card .btn-secondary {
    width: 100%;
    padding: 14px 28px;
  }
  
  .problem-card,
  .service-card,
  .testimonial-card,
  .pillar-card {
    padding: 32px 24px;
  }
  
  .section-headline {
    font-size: 28px;
    margin-bottom: 40px;
  }
  
  .section-subheadline {
    font-size: 17px;
    margin-bottom: 40px;
  }
  
  .impact-statement p {
    font-size: 18px;
  }
  
  .guarantee-badges {
    flex-direction: column;
    align-items: center;
  }
  
  .badge-success {
    width: 100%;
    justify-content: center;
  }
}

/* Mobile Small (<375px) */
@media (max-width: 374px) {
  .hero-headline {
    font-size: 28px;
  }
  
  .section-headline {
    font-size: 24px;
  }
  
  .btn-primary,
  .btn-whatsapp {
    font-size: 15px;
    padding: 14px 24px;
  }
}

/* Desktop Large (1440px+) */
@media (min-width: 1440px) {
  .container {
    max-width: 1320px;
  }
}


/* ============================================
   17. UTILITÁRIOS
   ============================================ */

.text-center {
  text-align: center;
}

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mt-5 { margin-top: 48px; }

.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.mb-5 { margin-bottom: 48px; }


/* ============================================
   18. MELHORIAS DE PERFORMANCE
   ============================================ */

/* Redução de animações para usuários com preferência */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Print styles */
@media print {
  .btn-primary,
  .btn-secondary,
  .btn-whatsapp,
  .cta-secondary,
  .cta-center,
  .final-cta-section {
    display: none;
  }
  
  .hero-section {
    background: var(--color-white);
    color: var(--color-primary);
  }
  
  .hero-headline,
  .hero-subheadline {
    color: var(--color-primary);
  }
}