:root {
  --bg: #0f172a;
  --bg-alt: #111827;
  --bg-card: #1e293b;
  --accent: #38bdf8;
  --accent-dark: #0ea5e9;
  --accent-purple: #818cf8;
  --text: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --border: #334155;
  --gradient: linear-gradient(135deg, #38bdf8 0%, #818cf8 100%);
}

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

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: 'Poppins', Arial, sans-serif;
  line-height: 1.6;
}

/* ===== HEADER ===== */
header {
  width: 100%;
  padding: 16px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: rgba(17, 24, 39, 0.92);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
}

.logo {
  text-decoration: none;
  display: flex;
  align-items: center;
}

.logo-img {
  height: 40px;
  width: auto;
  display: block;
}

nav {
  display: flex;
  gap: 4px;
}

nav a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 7px 16px;
  border-radius: 7px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
}

nav a:hover {
  color: var(--accent);
  background-color: rgba(56, 189, 248, 0.08);
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 18px;
  padding: 6px 10px;
  border-radius: 7px;
  cursor: pointer;
  transition: 0.2s;
}

.menu-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ===== HERO ===== */
.hero {
  min-height: 92vh;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 72px;
  padding: 60px 48px;
  max-width: 1180px;
  margin: 0 auto;
}

.hero-content {
  max-width: 580px;
  flex: 1;
}

.hero-label {
  font-size: 13px;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.hero h1 {
  font-size: 50px;
  font-weight: 800;
  line-height: 1.18;
  margin-bottom: 22px;
  color: var(--text);
}

.hero h1 span {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cursor {
  display: inline-block;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: blink 0.9s step-end infinite;
  font-weight: 300;
}

@keyframes blink {
  50% { opacity: 0; }
}

.hero-desc {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 36px;
}

.hero-desc strong {
  color: var(--accent);
  font-weight: 600;
}

.buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.buttons a {
  display: inline-block;
  padding: 13px 28px;
  border-radius: 9px;
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  transition: all 0.25s;
}

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

.btn-primary:hover {
  opacity: 0.88;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(56, 189, 248, 0.28);
}

.btn-secondary {
  border: 2px solid var(--accent);
  color: var(--accent);
  background: transparent;
}

.btn-secondary:hover {
  background-color: rgba(56, 189, 248, 0.1);
  transform: translateY(-2px);
}

.hero-image {
  flex-shrink: 0;
}

.image-ring {
  width: 270px;
  height: 270px;
  border-radius: 50%;
  background: var(--gradient);
  padding: 4px;
  box-shadow: 0 0 50px rgba(56, 189, 248, 0.22), 0 0 100px rgba(129, 140, 248, 0.1);
}

.profile-img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--bg);
}

/* ===== SECTIONS BASE ===== */
section {
  padding: 88px 20px;
}

.section-container {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

section h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}

section h2::after {
  content: '';
  display: block;
  width: 44px;
  height: 3px;
  background: var(--gradient);
  margin: 10px auto 0;
  border-radius: 2px;
}

.section-subtitle {
  font-size: 15px;
  color: var(--text-muted);
  margin-top: 8px;
  margin-bottom: 48px;
}

/* ===== SOBRE ===== */
#sobre {
  background-color: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.sobre-grid {
  display: flex;
  gap: 56px;
  text-align: left;
  margin-top: 36px;
  align-items: flex-start;
}

.sobre-text {
  flex: 1.2;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.sobre-text p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.85;
}

.sobre-text strong {
  color: var(--accent);
  font-weight: 600;
}

.skills-area {
  flex: 1;
}

.skills-area h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
  text-align: left;
}

.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skill-badge {
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: var(--accent);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  transition: 0.2s;
}

.skill-badge:hover {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--accent);
}

/* ===== EMPRESA ===== */
.empresa-section {
  background-color: var(--bg);
}

.empresa-cards {
  display: flex;
  gap: 22px;
  justify-content: center;
  flex-wrap: wrap;
}

.empresa-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 28px;
  width: 300px;
  text-align: center;
  transition: all 0.3s;
}

.empresa-card:hover {
  border-color: rgba(56, 189, 248, 0.5);
  transform: translateY(-5px);
  box-shadow: 0 16px 36px rgba(56, 189, 248, 0.1);
}

.empresa-icon {
  font-size: 38px;
  margin-bottom: 16px;
  display: block;
}

.empresa-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
}

.empresa-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* ===== PROJETOS ===== */
#projetos {
  background-color: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.projects {
  display: flex;
  justify-content: center;
  gap: 22px;
  flex-wrap: wrap;
}

.card {
  background-color: var(--bg);
  border: 1px solid var(--border);
  padding: 28px;
  border-radius: 16px;
  width: 300px;
  text-align: left;
  transition: all 0.3s;
  opacity: 0;
  transform: translateY(24px);
  position: relative;
  overflow: hidden;
}

.card.destaque {
  border-color: rgba(56, 189, 248, 0.35);
}

.card.destaque::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient);
}

.card:hover {
  border-color: rgba(56, 189, 248, 0.6);
  transform: translateY(-5px);
  box-shadow: 0 16px 36px rgba(56, 189, 248, 0.1);
}

.card-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  padding: 3px 11px;
  border-radius: 20px;
  margin-bottom: 14px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text);
  line-height: 1.4;
}

.card p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 18px;
  line-height: 1.75;
}

.card-techs {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.card-techs span {
  font-size: 12px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  padding: 3px 10px;
  border-radius: 5px;
  border: 1px solid var(--border);
}

.card-link {
  text-decoration: none;
  color: var(--accent);
  font-weight: 600;
  font-size: 14px;
  transition: 0.2s;
}

.card-link:hover {
  color: var(--accent-dark);
  text-decoration: underline;
}

/* ===== CONTATO ===== */
#contato {
  background-color: var(--bg);
}

.contato-grid {
  display: flex;
  gap: 18px;
  justify-content: center;
  flex-wrap: wrap;
}

.contato-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 28px 40px;
  border-radius: 14px;
  text-decoration: none;
  color: var(--text-muted);
  transition: all 0.25s;
  min-width: 130px;
}

.contato-card svg {
  width: 28px;
  height: 28px;
  color: var(--accent);
  transition: 0.25s;
}

.contato-card span {
  font-size: 14px;
  font-weight: 500;
}

.contato-card:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 10px 24px rgba(56, 189, 248, 0.15);
}

.contato-card:hover svg {
  transform: scale(1.1);
}

/* ===== FOOTER ===== */
footer {
  background-color: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: 30px 20px;
  text-align: center;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.footer-logo {
  margin-bottom: 4px;
}

.footer-logo-img {
  height: 34px;
  width: auto;
  display: block;
  opacity: 0.85;
}

footer p {
  font-size: 13px;
  color: var(--text-muted);
}

footer p strong {
  color: var(--text-secondary);
  font-weight: 500;
}

/* ===== RESPONSIVO ===== */
@media (max-width: 960px) {
  .hero {
    flex-direction: column-reverse;
    text-align: center;
    gap: 40px;
    padding: 60px 28px;
    min-height: auto;
    padding-top: 80px;
  }

  .buttons {
    justify-content: center;
  }

  .image-ring {
    width: 200px;
    height: 200px;
  }

  .sobre-grid {
    flex-direction: column;
    gap: 32px;
  }

  .skills-area h3 {
    text-align: center;
  }

  .skills-grid {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  header {
    padding: 14px 20px;
  }

  nav {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 62px;
    right: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px;
    gap: 4px;
    min-width: 160px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  }

  nav.open {
    display: flex;
  }

  nav a {
    padding: 10px 14px;
  }

  .menu-toggle {
    display: block;
  }

  .hero h1 {
    font-size: 34px;
  }

  section {
    padding: 64px 16px;
  }

  section h2 {
    font-size: 26px;
  }

  .empresa-card,
  .card {
    width: 100%;
    max-width: 360px;
  }

  .projects,
  .empresa-cards,
  .contato-grid {
    flex-direction: column;
    align-items: center;
  }

  .contato-card {
    flex-direction: row;
    width: 100%;
    max-width: 360px;
    padding: 20px 24px;
    justify-content: flex-start;
  }
}