* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  padding: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial,
    sans-serif;
  color: #0f172a;
  background: #f8fafc;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px;
}
.section {
  padding: 48px 0;
}
.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 900px) {
  .grid-2 {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #e2e8f0;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  font-weight: 700;
  font-size: 18px;
}
.nav {
  display: flex;
  gap: 16px;
  align-items: center;
}
.nav a {
  color: #0f172a;
  text-decoration: none;
  font-weight: 600;
}
.menu-btn {
  display: none;
  background: transparent;
  border: 0;
  font-size: 20px;
}
@media (max-width: 768px) {
  .menu-btn {
    display: block;
  }
  .nav {
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid #e2e8f0;
    padding: 12px 24px;
    display: none;
    flex-direction: column;
  }
  .nav.open {
    display: flex;
  }
}

.hero {
  background: radial-gradient(
      1200px 600px at 50% -20%,
      rgba(37, 99, 235, 0.25),
      transparent
    ),
    #0b1220 url("") center/cover no-repeat;
  color: #fff;
}
.hero-inner {
  padding: 72px 24px;
  text-align: center;
}
.hero h1 {
  font-size: 36px;
  margin: 0 0 12px;
}
.hero p {
  margin: 8px 0;
  color: #e2e8f0;
}
.btn {
  display: inline-block;
  background: #2563eb;
  color: #fff;
  padding: 10px 14px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
}
.btn:hover {
  background: #1d4ed8;
}
.btn-lg {
  padding: 12px 16px;
  font-size: 16px;
}

.rounded {
  border-radius: 12px;
  width: 100%;
  height: auto;
  border: 1px solid #e2e8f0;
}
.features {
  padding-left: 18px;
}
.muted {
  color: #64748b;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}
@media (min-width: 700px) {
  .gallery {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
}
.gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid #e2e8f0;
  cursor: zoom-in;
}

.site-footer {
  border-top: 1px solid #e2e8f0;
  margin-top: 48px;
}

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.9);
  display: grid;
  place-items: center;
}
.lightbox[hidden] {
  display: none;
}
.lightbox img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: 12px;
}
.lightbox-close {
  position: absolute;
  top: 16px;
  right: 16px;
  border: 0;
  background: #111827;
  color: #fff;
  font-size: 24px;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  cursor: pointer;
}