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

:root {
  --bg-primary: #0a0a1a;
  --bg-secondary: #0f0f2a;
  --bg-card: #151535;
  --bg-card-hover: #1a1a40;
  --text-primary: #f0f0f5;
  --text-secondary: #8888aa;
  --text-muted: #666688;
  --accent-blue: #0078D4;
  --accent-teal: #00D4AA;
  --accent-red: #FF4B4B;
  --accent-yellow: #FFB443;
  --border-color: #252550;
  --gradient-primary: linear-gradient(135deg, #0078D4, #00D4AA);
  --gradient-hero: radial-gradient(ellipse 80% 60% at 50% -20%, rgba(0,120,212,0.15), transparent);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color-scheme: dark;
  scroll-behavior: smooth;
}

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 26, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--gradient-primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 13px;
  color: white;
  flex-shrink: 0;
}

.logo-text {
  font-weight: 700;
  font-size: 18px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.2s;
}

.nav-links a:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}

.nav-cta {
  background: var(--gradient-primary) !important;
  color: white !important;
  font-weight: 600 !important;
  margin-left: 8px;
}

.nav-cta:hover {
  opacity: 0.9;
  background: var(--gradient-primary) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: 0.3s;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 120px 24px 80px;
  text-align: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
  pointer-events: none;
}

.hero-content {
  position: relative;
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  background: rgba(0, 120, 212, 0.1);
  border: 1px solid rgba(0, 120, 212, 0.3);
  color: var(--accent-blue);
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  background: linear-gradient(135deg, #f0f0f5, #8888aa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255,255,255,0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-1px);
}

.btn-full {
  width: 100%;
}

.hero-techs {
  display: flex;
  gap: 32px;
  margin-top: 64px;
  flex-wrap: wrap;
  justify-content: center;
}

.tech-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
}

.tech-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

/* Sections */
.section {
  padding: 100px 0;
}

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

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 60px;
  font-size: 1.05rem;
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.3s;
}

.service-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-blue);
  transform: translateY(-4px);
}

.service-icon {
  color: var(--accent-blue);
  margin-bottom: 20px;
}

.service-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.service-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 20px;
  line-height: 1.7;
}

.service-list li {
  padding: 8px 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.service-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-blue);
  flex-shrink: 0;
}

/* Casos */
.casos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.caso-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.3s;
  counter-increment: caso;
}

.caso-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-teal);
  transform: translateY(-4px);
}

.caso-number {
  font-size: 3rem;
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 1px var(--accent-teal);
  line-height: 1;
  margin-bottom: 16px;
}

.caso-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.tag {
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 500;
  background: rgba(0, 212, 170, 0.1);
  border: 1px solid rgba(0, 212, 170, 0.2);
  color: var(--accent-teal);
}

.tag:nth-child(2) { background: rgba(0, 120, 212, 0.1); border-color: rgba(0, 120, 212, 0.2); color: var(--accent-blue); }
.tag:nth-child(3) { background: rgba(255, 180, 67, 0.1); border-color: rgba(255, 180, 67, 0.2); color: var(--accent-yellow); }
.tag:nth-child(4) { background: rgba(255, 75, 75, 0.1); border-color: rgba(255, 75, 75, 0.2); color: var(--accent-red); }

.caso-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.caso-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* Diferenciadores */
.diffs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.diff-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 28px;
  transition: all 0.3s;
}

.diff-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.diff-icon {
  margin-bottom: 16px;
}

.diff-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.diff-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* Contact */
.contact-wrapper {
  max-width: 600px;
  margin: 0 auto;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 32px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 15px;
  font-family: inherit;
  transition: border-color 0.2s;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-blue);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 14px;
  transition: color 0.2s;
}

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

/* Footer */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border-color);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-copy {
  color: var(--text-muted);
  font-size: 14px;
}

.footer-techs {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 13px;
}

.tech-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
}

/* Success message */
.success-msg {
  text-align: center;
  padding: 40px;
  color: var(--accent-teal);
  font-size: 1.1rem;
  font-weight: 500;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(10, 10, 26, 0.98);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 16px;
    gap: 4px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    width: 100%;
    padding: 12px 16px;
  }

  .nav-cta {
    margin-left: 0;
    margin-top: 4px;
  }

  .nav-toggle {
    display: flex;
  }

  .services-grid,
  .casos-grid,
  .diffs-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 60px 0;
  }

  .hero {
    padding: 100px 24px 60px;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}