:root {
  --glass-bg: rgba(255, 255, 255, 0.66);
  --glass-bg-strong: rgba(255, 255, 255, 0.76);
  --glass-border: rgba(255, 255, 255, 0.55);
  --glass-shadow: 0 18px 45px rgba(24, 39, 75, 0.16);
  --glass-blur: 16px;
  --accent: #2e90f0;
}

[data-user-color-scheme='dark'] {
  --glass-bg: rgba(14, 21, 35, 0.7);
  --glass-bg-strong: rgba(18, 28, 45, 0.8);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 20px 55px rgba(0, 0, 0, 0.38);
  --glass-blur: 18px;
  --accent: #5ac8ff;
}

body {
  background-image: radial-gradient(circle at 12% 18%, rgba(46, 144, 240, 0.12), transparent 32%),
    radial-gradient(circle at 82% 4%, rgba(16, 185, 129, 0.1), transparent 28%),
    linear-gradient(135deg, #e8eef7 0%, #f5f8ff 100%);
  background-attachment: fixed;
}

[data-user-color-scheme='dark'] body {
  background-image: radial-gradient(circle at 18% 18%, rgba(90, 200, 255, 0.16), transparent 32%),
    radial-gradient(circle at 88% 8%, rgba(16, 185, 129, 0.12), transparent 26%),
    linear-gradient(140deg, #0b1220 0%, #0f172a 55%, #0b1220 100%);
}

body:not(.page-home) #board {
  position: relative;
  margin-top: -2rem;
  padding: 3rem 0;
  background: var(--glass-bg) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: 18px !important;
  box-shadow: var(--glass-shadow) !important;
  backdrop-filter: blur(var(--glass-blur)) saturate(1.08) !important;
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(1.08) !important;
  transition: background-color 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease,
    backdrop-filter 0.45s ease;
}

body.page-home #board {
  margin: 0 !important;
  padding: 0 !important;
  background: transparent !important;
  border: none !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

body.page-post #board {
  margin: 0 !important;
  padding: 0 !important;
  background: transparent !important;
  border: none !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

body.page-post #board > .container,
body.page-post #board > .container-fluid,
body.page-post #board > .row {
  padding: 0 !important;
  margin: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
  border: none !important;
}

@media (max-width: 767px) {
  #board {
    padding-top: 2.25rem;
    padding-bottom: 2.5rem;
  }
}

.navbar {
  background: rgba(255, 255, 255, 0.7);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 12px 32px rgba(24, 39, 75, 0.14);
  backdrop-filter: blur(14px) saturate(1.05);
  -webkit-backdrop-filter: blur(14px) saturate(1.05);
  transition: background-color 0.25s ease, box-shadow 0.25s ease, backdrop-filter 0.35s ease;
}

[data-user-color-scheme='dark'] .navbar {
  background: rgba(12, 18, 32, 0.78);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
}

.index-card {
  position: relative;
  padding: 1.6rem 1.5rem;
  margin-bottom: 2rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(var(--glass-blur)) saturate(1.05);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(1.05);
  transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease,
    border-color 0.25s ease;
  column-gap: 1.5rem;
  row-gap: 1rem;
}

.index-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 60px rgba(24, 39, 75, 0.18);
  background: var(--glass-bg-strong);
  border-color: rgba(46, 144, 240, 0.35);
}

.index-info {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.75rem;
}

.index-img {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.index-img img {
  border-radius: 14px;
  border: 1px solid var(--glass-border);
  box-shadow: 0 10px 28px rgba(24, 39, 75, 0.15);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  max-height: 260px;
  object-fit: cover;
}

.index-img img:hover {
  transform: scale(1.01);
  box-shadow: 0 18px 40px rgba(24, 39, 75, 0.2);
}

.index-header {
  margin-bottom: 0.2rem;
}

.index-btm.post-metas {
  gap: 0.65rem;
}

.index-btm .post-meta {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding-right: 0.6rem;
}

.index-btm .post-meta:not(:last-child) {
  border-right: 1px solid rgba(255, 255, 255, 0.18);
}

.index-btm .post-meta .pill {
  display: inline-flex;
  align-items: center;
  padding: 0.22rem 0.7rem;
  border-radius: 999px;
  background: rgba(46, 144, 240, 0.16);
  border: 1px solid rgba(46, 144, 240, 0.55);
  color: #1f4d83;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.index-btm .post-meta .pill:hover {
  background: rgba(46, 144, 240, 0.28);
  border-color: rgba(46, 144, 240, 0.75);
  color: #143b6a;
}

[data-user-color-scheme='dark'] .index-btm .post-meta .pill {
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: #eaf3ff;
}

[data-user-color-scheme='dark'] .index-btm .post-meta .pill:hover {
  background: rgba(255, 255, 255, 0.24);
  border-color: rgba(255, 255, 255, 0.48);
  color: #ffffff;
}

.post-content {
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(14px) saturate(1.08);
  -webkit-backdrop-filter: blur(14px) saturate(1.08);
  padding: 2.2rem clamp(1.25rem, 4vw, 3rem);
  transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease,
    backdrop-filter 0.4s ease;
}

.post-prevnext {
  padding: 0.75rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

[data-user-color-scheme='dark'] .post-prevnext {
  border-top-color: rgba(255, 255, 255, 0.1);
}

footer {
  background: transparent;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(12px) saturate(1.02);
  -webkit-backdrop-filter: blur(12px) saturate(1.02);
}

@supports not (backdrop-filter: blur(1px)) {
  #board,
  .index-card,
  .post-content,
  .navbar,
  footer {
    background-color: rgba(255, 255, 255, 0.92);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  [data-user-color-scheme='dark'] #board,
  [data-user-color-scheme='dark'] .index-card,
  [data-user-color-scheme='dark'] .post-content,
  [data-user-color-scheme='dark'] .navbar,
  [data-user-color-scheme='dark'] footer {
    background-color: rgba(12, 18, 32, 0.94);
  }
}