/* =========================================================
   Posts listing page
   ========================================================= */

.posts-container {
  max-width: 1080px;
}

/* Hero */
.posts-hero {
  position: relative;
  overflow: hidden;
  text-align: center;
  margin-bottom: 2rem;
  padding: 2.4rem 2rem;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 26px;
  background:
    radial-gradient(circle at top right, rgba(37, 99, 235, 0.2), transparent 36%),
    radial-gradient(circle at bottom left, rgba(124, 58, 237, 0.14), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.86) 0%, rgba(246, 250, 255, 0.72) 100%);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 22px 56px rgba(15, 23, 42, 0.12);
}

.posts-hero::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.28);
  filter: blur(10px);
  pointer-events: none;
}

.posts-hero h1 {
  position: relative;
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1.45;
  margin-bottom: 0.65rem;
  letter-spacing: -0.02em;
}

.posts-hero p {
  position: relative;
  max-width: 42rem;
  margin: 0 auto;
  font-size: 1.05rem;
  color: var(--color-text-muted);
}

.posts-summary {
  position: relative;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.75rem;
}

.summary-chip {
  min-width: 160px;
  padding: 1rem 1.1rem;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.65);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(8px);
}

.summary-chip strong {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 1.05rem;
  color: var(--color-text);
}

.summary-chip span {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.posts-toolbar {
  display: grid;
  gap: 1rem;
  margin-bottom: 1.75rem;
}

/* Search */
.search-wrapper {
  position: relative;
  max-width: 100%;
  margin: 0;
}

.search-icon {
  position: absolute;
  right: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.1rem;
  pointer-events: none;
  opacity: 0.5;
}

.search-input {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 1rem;
  padding: 1rem 3.2rem 1rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.76);
  color: var(--color-text);
  outline: none;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
  direction: rtl;
}

.search-input::placeholder {
  color: var(--color-text-muted);
  opacity: 0.7;
}

.search-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1), 0 16px 32px rgba(37, 99, 235, 0.08);
  transform: translateY(-1px);
}

.toolbar-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1rem 1.1rem;
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.68);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.08);
}

/* Tag filter buttons */
.tags-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0;
}

.tag-btn {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.55rem 1.15rem;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--color-text-muted);
  cursor: pointer;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
  transition: all 0.2s ease;
}

.tag-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-1px);
}

.tag-btn.active {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 10px 18px rgba(37, 99, 235, 0.22);
}

.tag-btn:focus-visible,
.search-input:focus-visible,
.card-link:focus-visible {
  outline: 2px solid rgba(37, 99, 235, 0.4);
  outline-offset: 2px;
}

.results-count {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  font-weight: 600;
}

/* No results */
.no-results {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 1.05rem;
  padding: 3rem 1rem;
  border: 1px dashed var(--color-border);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
}

/* Articles grid */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.6rem;
}

/* Article card */
.article-card {
  position: relative;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.58);
  border-radius: 20px;
  padding: 1.65rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  backdrop-filter: blur(13px);
  -webkit-backdrop-filter: blur(13px);
  box-shadow: 0 18px 42px rgba(15, 23, 42, 0.1);
}

.article-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent) 0%, #7c3aed 100%);
  opacity: 0.9;
}

.article-card:hover {
  transform: translateY(-6px);
  border-color: rgba(37, 99, 235, 0.3);
  box-shadow: 0 28px 52px rgba(15, 23, 42, 0.14);
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.card-top time {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.card-tag {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  font-size: 0.74rem;
  font-weight: 600;
  background: var(--color-tag-bg);
  color: var(--color-tag-text);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-family: var(--font-mono);
  direction: ltr;
  unicode-bidi: embed;
}

.card-title {
  font-size: 1.24rem;
  font-weight: 700;
  line-height: 1.65;
}

.card-title a {
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.15s ease;
}

.card-title a:hover {
  color: var(--color-accent);
}

.card-excerpt {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.9;
}

.card-excerpt code {
  font-family: var(--font-mono);
  font-size: 0.84em;
  background-color: var(--color-border);
  padding: 1px 5px;
  border-radius: 4px;
}

.card-points {
  margin-top: 0.1rem;
  padding-right: 1rem;
  color: var(--color-text);
  display: grid;
  gap: 0.6rem;
  font-size: 0.9rem;
}

.card-points li::marker {
  color: var(--color-accent);
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: 0.95rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.84rem;
}

.reading-time {
  color: var(--color-text-muted);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.15s ease, transform 0.15s ease;
}

.card-link:hover {
  color: var(--color-accent-dark);
  text-decoration: none;
  transform: translateX(-2px);
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 860px) {
  .posts-container {
    max-width: 900px;
  }

  .articles-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .posts-hero {
    padding: 1.5rem 1rem;
  }

  .posts-hero h1 {
    font-size: 1.45rem;
  }

  .search-input {
    font-size: 0.95rem;
  }

  .toolbar-meta,
  .card-top,
  .card-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .summary-chip,
  .tag-btn {
    width: 100%;
  }

  .card-link {
    transform: none;
  }
}

html[data-theme="dark"] .posts-hero {
  border-color: rgba(100, 116, 139, 0.35);
  background:
    radial-gradient(circle at top right, rgba(37, 99, 235, 0.22), transparent 36%),
    radial-gradient(circle at bottom left, rgba(124, 58, 237, 0.2), transparent 34%),
    linear-gradient(180deg, rgba(15, 23, 42, 0.9) 0%, rgba(17, 24, 39, 0.8) 100%);
  box-shadow: 0 22px 56px rgba(2, 6, 23, 0.4);
}

html[data-theme="dark"] .summary-chip,
html[data-theme="dark"] .toolbar-meta,
html[data-theme="dark"] .search-input,
html[data-theme="dark"] .tag-btn,
html[data-theme="dark"] .no-results,
html[data-theme="dark"] .article-card {
  background: rgba(15, 23, 42, 0.7);
  border-color: rgba(100, 116, 139, 0.35);
  box-shadow: 0 16px 36px rgba(2, 6, 23, 0.3);
}

html[data-theme="dark"] .search-input {
  color: var(--color-text);
}

html[data-theme="dark"] .search-input::placeholder {
  color: var(--color-text-muted);
}

html[data-theme="dark"] .tag-btn.active {
  color: #dbeafe;
}

html[data-theme="dark"] .card-excerpt code {
  background-color: var(--code-inline-bg);
  color: var(--code-inline-text);
}