responsive.css
/* ========== BASE MOBILE-FIRST ========== */
html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

/* ========== NAVBAR ========== */
#navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(8px);
  z-index: 999;
  transition: 0.3s;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px;
}

.logo-text {
  font-size: 1rem;
}

.menu-toggle {
  display: none;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 26px;
  height: 3px;
  background: white;
  margin: 5px 0;
  border-radius: 2px;
  transition: 0.3s;
}

/* ========== HERO ========== */
.hero {
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
  padding: 130px 20px 60px;
}

.glitch-text {
  font-size: clamp(1.8rem, 5vw, 3.5rem);
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.subtitle {
  font-size: clamp(0.9rem, 2.5vw, 1.2rem);
  color: #ccc;
  margin-bottom: 25px;
}

.cta-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.cta-button {
  padding: 12px 28px;
  border-radius: 30px;
  text-transform: uppercase;
  font-size: 0.9rem;
  font-weight: bold;
  transition: 0.3s;
}

/* ========== FEATURES ========== */
.features {
  padding: 80px 20px;
  text-align: center;
}

.features-container {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.feature-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.tab-item {
  flex: 1 1 120px;
  padding: 10px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  color: white;
  cursor: pointer;
  transition: 0.3s;
}

.tab-item:hover,
.tab-item.active {
  background: linear-gradient(90deg, #ff5e00, #00b2ff);
}

/* ========== ABOUT ========== */
.about-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
  padding: 40px 20px;
  text-align: center;
}

.about-text {
  max-width: 600px;
}

.about-text h2 {
  font-size: 1.4rem;
  margin-bottom: 15px;
}

.about-text p {
  font-size: 1rem;
  line-height: 1.6;
  color: #ddd;
}

.about-visual img {
  width: 100%;
  border-radius: 12px;
  max-width: 380px;
}

/* ========== CONTATO ========== */
.contact {
  padding: 60px 20px;
  background: rgba(255, 255, 255, 0.05);
  text-align: center;
}

.contact-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 25px;
}

.contact img {
  max-width: 100%;
  border-radius: 10px;
}

/* ========== FOOTER ========== */
footer {
  text-align: center;
  padding: 20px;
  font-size: 0.8rem;
  color: #aaa;
  background: rgba(0, 0, 0, 0.7);
}

/* ========== MEDIA QUERIES (para telas maiores) ========== */
@media (min-width: 768px) {
  .features-container {
    flex-direction: row;
  }

  .about-content {
    flex-direction: row;
    text-align: left;
  }

  .contact-container {
    flex-direction: row;
    justify-content: center;
  }

  .hero {
    padding: 160px 60px 100px;
  }

  .cta-button {
    font-size: 1rem;
  }
}

/* ========== MENU RESPONSIVO ========== */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    flex-direction: column;
    text-align: center;
    background: rgba(15, 15, 15, 0.95);
    position: absolute;
    top: 60px;
    right: 0;
    width: 100%;
  }

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

  .menu-toggle {
    display: block;
  }
}