/* ─── Reset ─── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ─── Base ─── */
body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: #f0f4fa;
  margin: 0;
  padding: 24px;
  color: #1f2937;
}

a {
  color: #2563eb;
  text-decoration: none;
}

a:hover {
  color: #1d4ed8;
  text-decoration: underline;
}

/* ─── Navbar ─── */
.navbar {
  max-width: 1100px;
  margin: 0 auto 16px;
  background: #1b2a4a;
  border-radius: 12px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.navbar a {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  color: #cbd5e1;
  background: transparent;
  border: none;
  transition: all 0.2s;
  text-decoration: none;
}

.navbar a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  text-decoration: none;
}

.navbar a.active {
  color: #fff;
  background: #2563eb;
}

/* ─── Page Container ─── */
.page {
  max-width: 1100px;
  margin: 0 auto;
}

/* ─── Card ─── */
.card {
  background: #ffffff;
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 4px 24px rgba(37, 99, 235, 0.08);
}

.card + .card {
  margin-top: 16px;
}

/* ─── Typography ─── */
h1 {
  font-size: 28px;
  margin: 0 0 12px;
  line-height: 1.3;
  color: #1b2a4a;
}

h2 {
  font-size: 18px;
  margin: 0 0 12px;
  color: #1b2a4a;
}

p {
  font-size: 16px;
  line-height: 1.6;
  color: #4b5563;
  margin: 0 0 12px;
}

code {
  display: inline;
  background: #eef2ff;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.95em;
  color: #1e40af;
}

/* ─── Note Text ─── */
.note {
  margin: 0;
  line-height: 1.6;
  color: #4b5563;
}

.note + .note {
  margin-top: 12px;
}

.note a {
  color: #2563eb;
  font-weight: 500;
}

.note a:hover {
  color: #1d4ed8;
}

/* ─── Description Box ─── */
.description {
  margin-top: 16px;
  padding: 20px;
  background: #f0f4fa;
  border-radius: 12px;
  border-left: 4px solid #2563eb;
}

.description p:last-child {
  margin-bottom: 0;
}

/* ─── Image Grid ─── */
.grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

/* ─── Image List ─── */
.list {
  margin-top: 24px;
  display: grid;
  gap: 24px;
}

/* ─── Image Wrap ─── */
.imgWrap {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 14px;
  padding: 14px;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.06);
  transition: box-shadow 0.2s;
}

.imgWrap:hover {
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.12);
}

.imgTitle {
  margin: 0 0 12px;
  font-size: 14px;
  color: #1b2a4a;
  font-weight: 600;
}

/* ─── Demo Images ─── */
img.demoImg {
  display: block;
  width: 800px;
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  background: #e9eef5;
  transition: filter 250ms ease, transform 250ms ease;
}

img.demoImg.isBlur {
  filter: blur(10px);
  transform: scale(1.02);
}

/* ─── Skeleton Placeholder ─── */
.skeleton {
  width: 800px;
  max-width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: 12px;
  background: #e9eef5;
}

/* ─── Spacer (NativeLazyLoading) ─── */
.spacer {
  height: 1400px;
}

/* ─── Responsive ─── */
@media (max-width: 600px) {
  body {
    padding: 16px;
  }

  .card {
    padding: 18px;
    border-radius: 12px;
  }

  h1 {
    font-size: 22px;
  }

  p,
  .note {
    font-size: 15px;
  }
}