body {
  background: linear-gradient(180deg, #050a16 0%, #0b1220 100%);
  color: #e5e7eb;
  font-family: system-ui, -apple-system, sans-serif;
}

/* HERO cinematic */
.hero {
  padding: 110px 0 70px;
  text-align: center;
   position: relative;
  overflow: hidden;

 background:
    radial-gradient(circle at 50% 0%, rgba(59,130,246,0.25), transparent 60%),
    radial-gradient(circle at 50% 30%, rgba(6,182,212,0.1), transparent 70%);
}
.hero::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 120px;

  background: linear-gradient(to bottom, rgba(11,18,32,0) 0%, #0b1220 100%);
}

.hero h1 {
    color: #fff;
    text-shadow: 0 5px 20px rgba(0,0,0,0.6);
  font-weight: 800;
  font-size: 2.5rem;
}

.hero p {
  color: #9ca3af;
  margin-top: 15px;
}

/* FEATURES */
.feature {
  padding: 80px 0;
  border-top: 1px solid rgba(255,255,255,0.04);
  position: relative;
  background: radial-gradient(circle at 50% 0%, rgba(59,130,246,0.05), transparent 70%);
}

.feature:nth-child(even) {
  background: rgba(255,255,255,0.02);
}

.feature img {
  width: 100%;
  border-radius: 14px;
  box-shadow: 
    0 25px 80px rgba(0,0,0,0.6),
    0 0 40px rgba(59,130,246,0.15);
}
.feature::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 50%, rgba(59,130,246,0.05), transparent 60%);
  pointer-events: none;
}
.feature h3 {
 color: #fff;
    text-shadow: 0 5px 20px rgba(0,0,0,0.6);
  font-weight: 700;
  margin-bottom: 15px;
}

.feature p {
  color: #cbd5e1;
}
.feature li {
  color: #d1d5db;
  margin-bottom: 6px;
}
/* badge */
.badge-custom {
  background: rgba(34,197,94,0.15);
  color: #22c55e;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 12px;
  margin-bottom: 10px;
  display: inline-block;
}
/* IMAGE CLICK */
.feature img {
  cursor: zoom-in;
  transition: transform .2s ease;
}

.feature img:hover {
  transform: scale(1.02);
}
/* NAVBAR */
.navbar-custom {
  position: sticky;
  top: 0;
  z-index: 999;
 backdrop-filter: blur(14px);
  background: rgba(5,10,22,0.75);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}


/* ANIMATIONS */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all .6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* BUTTON */
.btn-cta {
  background: linear-gradient(135deg,#3b82f6,#06b6d4);
  border: none;
  padding: 12px 22px;
  border-radius: 8px;
  font-weight: 600;
  transition: all .25s ease;
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(59,130,246,0.4);
}
/* MODAL */
.img-modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.95);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.img-modal.active {
  display: flex;
}
.img-modal img {
  max-width: 95%;
  max-height: 95%;
  border-radius: 10px;
  box-shadow: 0 30px 100px rgba(0,0,0,0.8);
  cursor: zoom-out;
}
.img-modal img {
  max-width: 90%;
  max-height: 90%;
  transform-origin: 0 0;
  cursor: grab;
  will-change: transform;
  user-select: none;
  -webkit-user-drag: none;
}
.img-modal img:active {
  cursor: grabbing;
}
/* close button */
.img-close {
  position: absolute;
  top: 20px;
  right: 25px;
  font-size: 28px;
  color: #fff;
  cursor: pointer;
  opacity: 0.7;
}

.img-close:hover {
  opacity: 1;
}
.img-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.img-grid img {
  width: 100%;
  height: 220px; /* cheia */
  object-fit: cover; /* crop inteligent */
  border-radius: 10px;
  cursor: zoom-in;
  transition: transform .2s ease;
}

.img-grid img:hover {
  transform: scale(1.03);
}

/* mobile */
@media (max-width: 768px) {
  .img-grid {
    display: flex;
    overflow-x: auto;
    gap: 10px;
    padding-bottom: 10px;
  }

  .img-grid img {
    min-width: 85%;
    flex-shrink: 0;
  }
}
.nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 40px;
  color: #fff;
  cursor: pointer;
  user-select: none;
  padding: 10px;
  opacity: 0.7;
}

.nav:hover {
  opacity: 1;
}

.nav.prev { left: 20px; }
.nav.next { right: 20px; }

/* MOBILE */
@media (max-width: 768px) {
  .nav {
    font-size: 30px;
  }
}