:root {
  /* Colors */
  --c-blue-horizon: #012DF8;
  --c-areia-natural: #FFF2E6;
  --c-blue-cobalto: #336CFC;
  --c-blue-industrial: #020935;
  --c-grafite-escuro: #262626;
  --c-branco: #FFFFFF;
  
  /* Typography */
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Montserrat', sans-serif;
  
  /* Radii & Shadows */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow-sm: 0 4px 6px rgba(2, 9, 53, 0.05);
  --shadow-md: 0 10px 20px rgba(2, 9, 53, 0.1);
  --shadow-lg: 0 20px 40px rgba(2, 9, 53, 0.15);
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px 0 rgba(2, 9, 53, 0.1);
}

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

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

body {
  font-family: var(--font-body);
  color: var(--c-grafite-escuro);
  background-color: var(--c-areia-natural);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--c-blue-industrial);
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

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

.text-gradient {
  background: linear-gradient(135deg, var(--c-blue-horizon), var(--c-blue-cobalto));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

.section {
  padding: 100px 0;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 16px;
  text-align: center;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--c-grafite-escuro);
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
  opacity: 0.8;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 32px;
  border-radius: 100px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  cursor: pointer;
  border: none;
  gap: 8px;
}

.btn-primary {
  background-color: var(--c-blue-horizon);
  color: var(--c-branco);
  box-shadow: 0 4px 15px rgba(1, 45, 248, 0.3);
}

.btn-primary:hover {
  background-color: var(--c-blue-cobalto);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(1, 45, 248, 0.4);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--c-branco);
  color: var(--c-branco);
}

.btn-outline:hover {
  background: var(--c-branco);
  color: var(--c-blue-industrial);
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 24px 0;
  z-index: 1000;
  transition: all 0.3s ease;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}

header.scrolled {
  padding: 16px 0;
  background: rgba(255, 255, 255, 0.98);
}

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

.logo {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--c-blue-industrial);
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo span {
  color: var(--c-blue-horizon);
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--c-blue-industrial);
  transition: color 0.2s ease;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--c-blue-horizon);
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: var(--c-blue-horizon);
}

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

/* Hero Section (Sessão 1) */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background-color: var(--c-areia-natural);
  padding-top: 80px;
}

.hero-bg {
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: linear-gradient(135deg, var(--c-blue-industrial) 0%, var(--c-blue-horizon) 100%);
  border-bottom-left-radius: 200px;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
  mix-blend-mode: overlay;
}

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero-content {
  max-width: 600px;
}

.hero h1 {
  font-size: 4rem;
  margin-bottom: 24px;
  line-height: 1.1;
  animation: fadeUp 0.8s ease-out;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 40px;
  color: var(--c-grafite-escuro);
  opacity: 0.9;
  animation: fadeUp 0.8s ease-out 0.2s both;
}

.hero-cta {
  animation: fadeUp 0.8s ease-out 0.4s both;
}

/* About / Abordagem (Sessão 2) */
.about {
  background-color: var(--c-blue-industrial);
  color: var(--c-branco);
  position: relative;
}

.about .section-title {
  color: var(--c-branco);
}

.about .section-subtitle {
  color: var(--c-areia-natural);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 40px;
}

.about-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 40px 32px;
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
  transition: transform 0.3s ease, background 0.3s ease;
}

.about-card:hover {
  transform: translateY(-10px);
  background: rgba(255, 255, 255, 0.08);
}

.about-card i {
  font-size: 2.5rem;
  color: var(--c-blue-cobalto);
  margin-bottom: 24px;
}

.about-card h3 {
  color: var(--c-branco);
  margin-bottom: 16px;
  font-size: 1.25rem;
}

.about-card p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
}

/* Services (Sessão 3) */
.services {
  background-color: var(--c-areia-natural);
}

.services-intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 60px;
  font-size: 1.125rem;
}

.service-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 100px;
}

.service-item:nth-child(even) {
  direction: rtl;
}

.service-item:nth-child(even) .service-content {
  direction: ltr;
}

.service-content h3 {
  font-size: 2rem;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.service-content h3 span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--c-blue-horizon);
  color: var(--c-branco);
  border-radius: 50%;
  font-size: 1.25rem;
}

.service-list {
  margin-top: 24px;
}

.service-list li {
  margin-bottom: 16px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.service-list li i {
  color: var(--c-blue-horizon);
  font-size: 1.25rem;
  margin-top: 4px;
}

.service-list li strong {
  color: var(--c-blue-industrial);
  display: block;
}

.service-visual {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, rgba(1,45,248,0.1), rgba(51,108,252,0.1));
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-visual i {
  font-size: 8rem;
  color: var(--c-blue-horizon);
  opacity: 0.5;
}

/* Differentials (Sessão 4) */
.differentials {
  background: var(--c-blue-horizon);
  color: var(--c-branco);
  position: relative;
  overflow: hidden;
}

.differentials::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--c-blue-cobalto) 0%, transparent 70%);
  opacity: 0.5;
  border-radius: 50%;
}

.differentials .section-title {
  color: var(--c-branco);
}

.diff-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  position: relative;
  z-index: 1;
}

.diff-card {
  background: var(--c-branco);
  color: var(--c-grafite-escuro);
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: transform 0.3s ease;
}

.diff-card:hover {
  transform: translateY(-10px);
}

.diff-card i {
  font-size: 3rem;
  color: var(--c-blue-horizon);
  margin-bottom: 24px;
}

.diff-card h3 {
  margin-bottom: 16px;
  font-size: 1.5rem;
}

/* Process (Sessão 5) */
.process {
  background-color: var(--c-areia-natural);
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 24px;
  height: 100%;
  width: 4px;
  background: rgba(1, 45, 248, 0.2);
  border-radius: 4px;
}

.timeline-item {
  position: relative;
  padding-left: 80px;
  margin-bottom: 48px;
}

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

.timeline-number {
  position: absolute;
  left: 0;
  top: 0;
  width: 52px;
  height: 52px;
  background: var(--c-blue-horizon);
  color: var(--c-branco);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  box-shadow: 0 0 0 8px var(--c-areia-natural);
  z-index: 1;
}

.timeline-content {
  background: var(--c-branco);
  padding: 32px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.3s ease;
}

.timeline-content:hover {
  box-shadow: var(--shadow-md);
}

.timeline-content h3 {
  margin-bottom: 12px;
  color: var(--c-blue-horizon);
}

/* FAQ (Sessão 7) */
.faq {
  background-color: var(--c-branco);
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid rgba(2, 9, 53, 0.1);
  padding: 24px 0;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--c-blue-industrial);
}

.faq-question i {
  transition: transform 0.3s ease;
  color: var(--c-blue-horizon);
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, margin-top 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  margin-top: 16px;
  color: var(--c-grafite-escuro);
}

/* Form / Contact (Sessão 8) */
.contact {
  background: linear-gradient(135deg, var(--c-blue-industrial) 0%, var(--c-blue-horizon) 100%);
  color: var(--c-branco);
  position: relative;
}

.contact .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.contact-info h2 {
  font-size: 2.5rem;
  margin-bottom: 24px;
  color: var(--c-branco);
}

.contact-info p {
  font-size: 1.125rem;
  margin-bottom: 40px;
  opacity: 0.9;
}

.contact-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
}

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

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.9rem;
  font-weight: 600;
}

.form-control {
  width: 100%;
  padding: 16px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--c-blue-industrial);
  transition: border-color 0.3s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--c-blue-cobalto);
}

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

.contact-card .btn {
  width: 100%;
}

/* Footer (Sessão 9) */
footer {
  background-color: var(--c-blue-industrial);
  color: rgba(255, 255, 255, 0.7);
  padding: 80px 0 24px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-logo {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--c-branco);
  margin-bottom: 16px;
  display: inline-block;
}

.footer-logo span {
  color: var(--c-blue-horizon);
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-contact i {
  color: var(--c-blue-cobalto);
  font-size: 1.25rem;
}

.footer-links h4 {
  color: var(--c-branco);
  margin-bottom: 24px;
  font-size: 1.25rem;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--c-blue-horizon);
}

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
}

.footer-bottom-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 16px;
}

/* Animations */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive */
@media (max-width: 992px) {
  .hero .container, .contact .container {
    grid-template-columns: 1fr;
  }
  
  .hero-bg {
    width: 100%;
    border-bottom-left-radius: 0;
    clip-path: polygon(0 0, 100% 0, 100% 80%, 0 100%);
  }
  
  .hero {
    padding-top: 120px;
    padding-bottom: 80px;
  }
  
  .hero-content {
    color: var(--c-branco);
  }
  
  .hero h1 {
    color: var(--c-branco);
  }
  
  .hero p {
    color: rgba(255, 255, 255, 0.9);
  }
  
  .about-grid, .diff-grid {
    grid-template-columns: 1fr;
  }
  
  .service-item, .service-item:nth-child(even) {
    grid-template-columns: 1fr;
    direction: ltr;
  }
  
  .footer-top {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  header .nav-links {
    display: none; /* Em um projeto real, faríamos um menu hamburger */
  }
}