:root {
  --bg: #0f0f12;
  --text: #ffffff;
  --muted: rgba(255, 255, 255, 0.82);
  --primary: #2f7bff;
  --primary-dark: #1d5fda;
  --card-radius: 18px;
  --gap: 18px;
  --columns: 4;
  --card-sm: 120px;
  --card-md: 175px;
  --card-lg: 235px;
  --card-xl: 300px;
}

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

body {
  font-family: "Manrope", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.masonry {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(var(--columns), minmax(0, 1fr));
  gap: var(--gap);
  width: 100%;
  height: 100%;
  padding: 36px;
  opacity: 0.9;
}

.overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 16, 20, 0.7);
  z-index: 1;
}

.content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 640px;
  padding: 0 24px;
}

h1 {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(2rem, 3.5vw, 3rem);
  line-height: 1.15;
  margin-bottom: 16px;
}

p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--muted);
  margin-bottom: 22px;
}

.content a {
  color: #9ec0ff;
}

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

.btn {
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 12px 22px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn--primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 14px 24px rgba(47, 123, 255, 0.35);
}

.btn--primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.image-card {
  position: relative;
  overflow: hidden;
  height: 100%;
  --track-gap: var(--gap);
}

.card {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  border-radius: var(--card-radius);
  overflow: hidden;
  background: #1d1e24;
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.28);
}

.card.is-clone {
  animation: none;
}

.card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.image-track {
  position: relative;
  width: 100%;
  height: 100%;
  will-change: transform;
}

.card--sm { height: var(--card-sm); }
.card--md { height: var(--card-md); }
.card--lg { height: var(--card-lg); }
.card--xl { height: var(--card-xl); }

@media (max-width: 1200px) {
  :root {
    --columns: 3;
  }

  .masonry {
    padding: 28px;
  }
}

@media (max-width: 900px) {
  :root {
    --columns: 2;
  }

  .masonry {
    padding: 24px;
  }

  h1 {
    font-size: clamp(1.8rem, 6vw, 2.4rem);
  }

}

@media (max-width: 600px) {
  .masonry {
    padding: 18px;
  }
}