/* blog.css — Blog-specific styles. Load AFTER base.css */

/* ── Blog design tokens ──────────────────────────── */
/* These override base.css so the blog page has its own palette.
   Keep this block in sync with any vars used below. */
:root {
  --card: #0a0a0a;
  --border: #27272a;
  --muted: #18181b;
  --radius: 0.625rem;
  --background-primary: #141413;
  --background-secondary: #1a191b;
  --background-tertiary: #1f1e1d;
  --foreground: #fafafa;
  --muted-foreground: #87867f;
  --primary: #fafafa;
  --primary-foreground: #18181b;
  --font-sans:
    'degular-thin', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono: 'degular-thin', 'Fira Code', ui-monospace, monospace;
  --accent: #ef4444;
  --accent2: #f97316;
}

body {
  font-family: var(--font-sans);
  background: var(--background-primary);
}

.container {
  max-width: 72rem;
}

/* ── Animations (blog overrides base.css values) ─── */
@keyframes blur-in-up {
  from {
    opacity: 0;
    filter: blur(4px);
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    filter: blur(0);
    transform: translateY(0);
  }
}
.anim {
  opacity: 0;
  animation: blur-in-up 0.55s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.anim-d1 {
  animation-delay: 0.05s;
}
.anim-d2 {
  animation-delay: 0.12s;
}
.anim-d3 {
  animation-delay: 0.22s;
}
.anim-d4 {
  animation-delay: 0.32s;
}

/* ── Blog layout section ─────────────────────────── */
.blog-layout-section {
  padding-block: 0 6rem;
}

/* Mobile filter bar */
.filter-bar {
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
@media (max-width: 1023px) {
  .filter-bar {
    display: flex;
  }
}

.filter-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #0d0d10;
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  color: var(--foreground);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.55rem 1rem;
  cursor: pointer;
  transition: border-color 0.15s;
}
.filter-toggle-btn:hover {
  border-color: #52525b;
}

.filter-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.125rem;
  height: 1.125rem;
  background: var(--foreground);
  color: #0a0a0a;
  border-radius: 9999px;
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 0 0.25rem;
}

.filter-badge[hidden] {
  display: none !important;
}

.articles-count-mobile {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: #52525b;
}

/* Two-column layout */
.blog-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2rem;
  align-items: start;
}
@media (max-width: 1023px) {
  .blog-layout {
    grid-template-columns: 1fr;
  }
}

/* ── Sidebar ─────────────────────────────────────── */
.blog-sidebar {
  position: sticky;
  top: 5.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}
@media (max-width: 1023px) {
  .blog-sidebar {
    position: static;
    display: none;
    margin-bottom: 1.5rem;
  }
  .blog-sidebar.is-open {
    display: flex;
  }
}

.filter-panel {
  background: #0d0d10;
  border: 1px solid var(--border);
  border-radius: 0.875rem;
  padding: 1.125rem 1.25rem;
}
.filter-panel__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #52525b;
  margin-bottom: 0.875rem;
}
.filter-options {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.filter-opt {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  cursor: pointer;
  padding: 0.4rem 0.5rem;
  border-radius: 0.5rem;
  transition: background 0.12s;
  user-select: none;
}
.filter-opt:hover {
  background: rgba(255, 255, 255, 0.04);
}
.filter-opt input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.filter-opt__indicator {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  border: 1px solid #3f3f46;
  border-radius: 3px;
  background: transparent;
  transition:
    border-color 0.12s,
    background 0.12s;
  position: relative;
}
.filter-opt input[type="radio"] ~ .filter-opt__indicator {
  border-radius: 50%;
}
.filter-opt input:checked ~ .filter-opt__indicator {
  background: var(--foreground);
  border-color: var(--foreground);
}
.filter-opt
  input[type="checkbox"]:checked
  ~ .filter-opt__indicator::after {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M2 6l3 3 5-5' stroke='%230a0a0a' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")
    center / 10px no-repeat;
}
.filter-opt input[type="radio"]:checked ~ .filter-opt__indicator::after {
  content: "";
  position: absolute;
  inset: 3px;
  background: #0a0a0a;
  border-radius: 50%;
}

.filter-opt__text {
  font-size: 0.85rem;
  color: var(--muted-foreground);
  transition: color 0.12s;
  line-height: 1.35;
}
.filter-opt input:checked ~ .filter-opt__text {
  color: var(--foreground);
}

.filter-clear-btn {
  width: 100%;
  background: transparent;
  border: 1px solid #27272a;
  border-radius: 0.75rem;
  color: #52525b;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.55rem 1rem;
  cursor: pointer;
  transition:
    border-color 0.15s,
    color 0.15s;
  text-align: center;
}
.filter-clear-btn:hover {
  border-color: #52525b;
  color: var(--muted-foreground);
}

/* ── Blog main ───────────────────────────────────── */
.blog-main {
  min-width: 0;
}
.blog-main__header {
  display: none;
  align-items: center;
  margin-bottom: 1.25rem;
}
@media (min-width: 1024px) {
  .blog-main__header {
    display: flex;
  }
}
.articles-count {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: #52525b;
}

/* ── Articles grid ───────────────────────────────── */
.articles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
@media (min-width: 640px) {
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1280px) {
  .articles-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ── Article card ────────────────────────────────── */
.article-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--background-tertiary);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  overflow: hidden;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
  text-decoration: none;
}
.article-card:hover {
  border-color: rgba(239, 68, 68, 0.3);
  box-shadow:
    0 0 0 1px rgba(239, 68, 68, 0.08),
    0 12px 32px rgba(0, 0, 0, 0.4);
}
.article-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, #ef4444, #f97316);
  opacity: 0;
  transition: opacity 0.2s;
}
.article-card:hover::before {
  opacity: 1;
}
.article-card__body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex: 1;
}
.article-card__tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.article-card__title {
  font-family: var(--font-sans);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.35;
  color: var(--foreground);
  transition: color 0.15s;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: calc(1.2rem * 1.35 * 2);
}
.article-card:hover .article-card__title {
  color: #ef4444;
}
.article-card__excerpt {
  font-size: 1rem;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--muted-foreground);
  line-height: 1.7;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: calc(1rem * 1.7 * 3);
}
.article-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.75rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #52525b;
}
.article-card__cta {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  color: white;
  font-weight: 600;
  transition: gap 0.2s;
}
.article-card:hover .article-card__cta {
  gap: 0.625rem;
}

.article-card[hidden] {
  display: none !important;
}

/* ── No results ──────────────────────────────────── */
.no-results {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 2rem;
  border: 1.5px dashed #27272a;
  border-radius: 1.25rem;
  gap: 1.25rem;
}
.no-results p {
  color: var(--muted-foreground);
  font-size: 0.9375rem;
}
.no-results button {
  background: transparent;
  border: 1px solid rgba(239, 68, 68, 0.25);
  color: #ef4444;
  border-radius: 9999px;
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font-sans);
  transition:
    background 0.15s,
    border-color 0.15s;
}
.no-results button:hover {
  background: rgba(239, 68, 68, 0.08);
  border-color: rgba(239, 68, 68, 0.4);
}

.no-results[hidden] {
  display: none !important;
}

/* ── Blog search bar ─────────────────────────────── */
.blog-search {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  margin-bottom: 1.25rem;
  transition:
    border-color 0.15s,
    box-shadow 0.15s;
}
.blog-search:focus-within {
  border-color: rgba(43, 200, 183, 0.4);
  box-shadow: 0 0 0 3px rgba(43, 200, 183, 0.07);
}
.blog-search > svg {
  flex-shrink: 0;
  color: #52525b;
}
.blog-search input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--foreground);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  min-width: 0;
  appearance: none;
  -webkit-appearance: none;
}
.blog-search input::placeholder {
  color: #52525b;
}
.blog-search button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: #52525b;
  cursor: pointer;
  padding: 0.15rem;
  border-radius: 0.25rem;
  transition: color 0.12s;
}
.blog-search button:hover {
  color: var(--foreground);
}
.blog-search button[hidden] {
  display: none !important;
}

/* ── Pagination (desktop) ────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.pagination__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  background: var(--background-tertiary);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  color: var(--foreground);
  cursor: pointer;
  transition:
    border-color 0.2s,
    background 0.2s,
    transform 0.1s,
    box-shadow 0.2s;
}
.pagination__btn:hover:not(:disabled) {
  border-color: rgba(239, 68, 68, 0.35);
  background: rgba(239, 68, 68, 0.06);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.06);
}
.pagination__btn:active:not(:disabled) {
  transform: scale(0.94);
}
.pagination__btn:disabled {
  cursor: default;
  opacity: 0.35;
  background: transparent;
}
.pagination__btn svg {
  width: 1rem;
  height: 1rem;
}

.pagination__info {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--muted-foreground);
  min-width: 4.5rem;
  text-align: center;
  letter-spacing: 0.02em;
  user-select: none;
}

/* ── Infinite scroll sentinel ────────────────────── */
.sentinel {
  height: 1px;
  margin-top: 2rem;
}

@media (min-width: 1024px) {
  .sentinel {
    display: none;
  }
}