/* ===== RESET BASIC ===== */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #0e0e0e;
  color: #ffffff;
}

/* ===== HEADER ===== */
.page-header {
  text-align: center;
  margin-top: 72px;
  padding: 0 16px;
}

.badge {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  margin-bottom: 16px;
  opacity: 0.85;
}

.page-header h1 {
  font-size: 2.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.page-header p {
  font-size: 1rem;
  opacity: 0.7;
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ===== GRID ===== */
.wallpaper-grid {
  max-width: 1100px;
  margin: 56px auto;
  padding: 0 16px;

  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

/* ===== CARD ===== */
.wallpaper-grid a {
  display: block;
  position: relative;
  border-radius: 18px;
  overflow: hidden;
}

.wallpaper-grid img {
  width: 100%;
  display: block;
  border-radius: 18px;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

/* ===== HOVER EFFECT ===== */
.wallpaper-grid a:hover img {
  transform: scale(1.04);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .wallpaper-grid {
    grid-template-columns: 1fr;
  }

  .page-header h1 {
    font-size: 2.1rem;
  }

  .nav-bar {
  max-width: 1100px;
  margin: 24px auto 0;
  padding: 0 16px;

  display: flex;
  gap: 12px;
}

.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;

  padding: 10px 16px;
  border-radius: 999px;

  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  text-decoration: none;
  border: none;

  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.25s ease, transform 0.2s ease;
}

.nav-btn:hover {
  background: rgba(255, 255, 255, 0.16);
  transform: translateY(-1px);
}

}