:root {
  --bg: #081123;
  --surface: #0f1a35;
  --surface-soft: #111d3b;
  --primary: #5bf3ff;
  --secondary: #97b4d9;
  --text: #f3f5fb;
  --muted: #9cb0d3;
  --white: #ffffff;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top, rgba(91, 243, 255, 0.12), transparent 28%),
    linear-gradient(180deg, #06101f 0%, #0a1629 40%, #0b1528 100%);
  min-height: 100vh;
  line-height: 1.7;
}

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

a,
button {
  font: inherit;
}

.container {
  width: min(1200px, calc(100% - 2rem));
  margin: 0 auto;
}

header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(4, 13, 27, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  color: var(--white);
  font-weight: 700;
  text-decoration: none;
}

.brand img {
  height: 44px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 1.6rem;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--white);
}

.hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
  min-height: 80vh;
  padding: 4rem 0 3rem;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.eyebrow {
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(2.8rem, 5vw, 4rem);
  line-height: 1.02;
  max-width: 740px;
  color: var(--white);
}

.hero p {
  max-width: 680px;
  font-size: 1.05rem;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 1.8rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, #5bf3ff 0%, #4eceff 100%);
  color: #081123;
  box-shadow: 0 20px 40px rgba(27, 195, 255, 0.18);
}

.btn-secondary {
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: var(--white);
  background: rgba(255, 255, 255, 0.06);
}

.btn-large {
  padding: 1.2rem 2rem;
}

section {
  padding: 4rem 0;
}

.section-light {
  background: rgba(255, 255, 255, 0.02);
}

#tecnologias {
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at top left, rgba(91, 243, 255, 0.08), transparent 24%),
              linear-gradient(180deg, #081123 0%, #0a1529 100%);
}

#tecnologias::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(91, 243, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91, 243, 255, 0.08) 1px, transparent 1px);
  background-size: 30px 30px;
  opacity: 0.18;
  pointer-events: none;
}

#tecnologias::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 18% 12%, rgba(91, 243, 255, 0.24), transparent 22%),
              radial-gradient(circle at 82% 18%, rgba(91, 243, 255, 0.14), transparent 16%);
  pointer-events: none;
  filter: blur(14px);
}

.tech-effect {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.tech-mouse-light {
  position: absolute;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(91, 243, 255, 0.22) 0%, rgba(91, 243, 255, 0.00) 65%);
  filter: blur(16px);
  opacity: 0;
  transform: translate3d(-50%, -50%, 0);
  transition: opacity 0.25s ease, transform 0.18s ease;
}

.tech-particle {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(91, 243, 255, 0.35), rgba(91, 243, 255, 0.02) 60%);
  opacity: 0.65;
  animation: drift 12s ease-in-out infinite;
}

.tech-particle:nth-child(odd) {
  animation-duration: 14s;
}

.tech-particle:nth-child(even) {
  animation-duration: 10s;
}

.tech-particle:nth-child(3n) {
  opacity: 0.55;
}

.project-grid,
.tech-grid {
  position: relative;
  z-index: 1;
}

#tecnologias:hover .tech-mouse-light {
  opacity: 1;
}

@keyframes drift {
  0%, 100% {
    transform: translate(0, 0);
  }
  25% {
    transform: translate(12px, -8px);
  }
  50% {
    transform: translate(-10px, 10px);
  }
  75% {
    transform: translate(8px, 8px);
  }
}

.section-title {
  text-align: center;
  margin-bottom: 2.5rem;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.section-title h2 {
  font-size: clamp(2rem, 3vw, 3rem);
  color: var(--white);
  margin: 1rem 0 0.75rem;
}

.section-title p {
  color: var(--muted);
  line-height: 1.8;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem;
}

.card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  padding: 1.8rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-height: 100%;
}

.card-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.card-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  color: var(--primary);
  font-size: 1.5rem;
  flex-shrink: 0;
}

.card h3 {
  color: var(--white);
  font-size: 1.2rem;
}

.card ul {
  list-style: none;
  padding-left: 0;
  display: grid;
  gap: 0.75rem;
}

.card li {
  color: var(--muted);
  position: relative;
  padding-left: 1.2rem;
}

.card li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--primary);
}

.tag {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background: rgba(91, 243, 255, 0.12);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 700;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  padding: 1.8rem;
}

.project-icon {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin-bottom: 1rem;
  color: var(--primary);
  font-size: 1.45rem;
}

.project-card h3 {
  color: var(--white);
  margin-bottom: 0.75rem;
}

.project-card p {
  color: var(--muted);
  line-height: 1.75;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.tech-grid span {
  display: block;
  padding: 1rem 1.2rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--white);
  text-align: center;
  font-weight: 600;
}

.tech-item {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  justify-content: center;
}

.tech-item i {
  font-size: 1.15rem;
  color: var(--primary);
}

.about-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

.about-copy h2 {
  font-size: clamp(2rem, 3vw, 3rem);
  color: var(--white);
  margin: 1rem 0 1rem;
}

.about-copy p {
  color: var(--muted);
  max-width: 680px;
  line-height: 1.8;
}

.contact-section {
  display: grid;
  gap: 1.8rem;
  padding: 3rem 0;
}

/* Estilos para o formulário de solicitação de orçamento */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
}

.contact-form .form-row {
  display: flex;
  gap: 0.75rem;
}

.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--white);
  font-weight: 600;
}

.contact-form textarea { min-height: 140px; resize: vertical; }

.contact-form input:focus, .contact-form textarea:focus {
  outline: none;
  box-shadow: 0 6px 20px rgba(27, 195, 255, 0.12);
  border-color: rgba(91, 243, 255, 0.6);
}

.contact-form .btn {
  align-self: stretch;
  padding: 1rem 1.2rem;
  border-radius: 999px;
}

.contact-form .btn-primary {
  background: linear-gradient(135deg, #5bf3ff 0%, #4eceff 100%);
  color: #081123;
  box-shadow: 0 14px 30px rgba(27, 195, 255, 0.14);
}

@media (max-width: 680px) {
  .contact-form .form-row { flex-direction: column; }
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.contact-item {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  padding: 1.4rem;
  display: grid;
  gap: 0.5rem;
}

.contact-icon {
  width: 36px;
  height: 36px;
  display: inline-grid;
  place-items: center;
  color: var(--primary);
  font-size: 1.2rem;
}

.contact-item strong {
  display: block;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.contact-item a {
  color: var(--primary);
  text-decoration: none;
}

footer {
  padding: 2rem 0 2.5rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  color: var(--muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: flex-end;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

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

@media (max-width: 1024px) {
  .cards,
  .project-grid,
  .tech-grid,
  .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .navbar {
    flex-direction: column;
    gap: 1rem;
  }

  .nav-links {
    justify-content: center;
  }

  .hero h1 {
    font-size: 2.8rem;
  }

  .cards,
  .project-grid,
  .tech-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
}