* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Roboto', sans-serif;
}

body {
  background: #0f172a;
  color: #e5e7eb;
  padding-top: 80px;
}

/* NAV */
.nav {
  position: fixed;
  top: 0;
  width: 100%;
  background: #020617;
  z-index: 1000;
}

.nav-container {
  max-width: 1200px;
  margin: auto;
  padding: 15px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  height: 50px;
  width: auto;
  padding: 0;
  margin: 0;
}

.brand img {
  zoom: 30%;
  padding: 0;
  margin: 0;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 30px;
}

.nav-menu a {
  text-decoration: none;
  color: #cbd5f5;
}

/* HAMBURGER */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
}

.menu-toggle span {
  width: 26px;
  height: 2px;
  background: #e5e7eb;
}

/* HERO */
.hero {
  height: 100vh;
  position: relative;
  overflow: hidden;
}

.slides {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.2s ease;
}

.slides.active {
  opacity: 1;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(2,6,23,.7);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.hero-overlay h1 {
  font-size: 3rem;
  color: #22c55e;
}

/* SECTIONS */
.section {
  padding: 80px 10%;
}

.section.gray {
  background: #020617;
}

.section.dark {
  background: #020617;
  text-align: center;
}

/* SERVICES */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px,1fr));
  gap: 25px;
}

.service-card {
  background: #020617;
  padding: 30px;
  border-left: 4px solid #22c55e;
}

/* PROJECTS */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px,1fr));
  gap: 20px;
}

.project {
  background: #020617;
  padding: 40px;
  text-align: center;
}

/* FOOTER */
footer {
  padding: 20px;
  text-align: center;
  background: #020617;
  color: #64748b;
}

/* ANIMACIONES */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: 1s;
}

.reveal.active {
  opacity: 1;
  transform: none;
}

/* MOBILE */
@media (max-width: 768px) {
  .menu-toggle { display: flex; }

  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: #020617;
    flex-direction: column;
    max-height: 0;
    overflow: hidden;
    transition: max-height .5s ease;
  }

  .nav-menu.active {
    max-height: 300px;
  }

  .nav-menu li {
    text-align: center;
    padding: 15px;
  }
}