:root {
  --bg: #030712;
  --bg-soft: #0b1220;
  --card: #0f172a;
  --card-2: #111827;
  --fg: #f3f4f6;
  --muted: #9ca3af;
  --muted-2: #6b7280;
  --border: #1f2937;
  --primary: #22c55e;
  --primary-2: #4ade80;
  --ring: rgba(34, 197, 94, 0.35);
  --radius: 0.85rem;
  --maxw: 46rem;
  --shadow: 0 20px 40px -24px rgba(0, 0, 0, 0.7);
  color-scheme: dark;
}

:root:not(.dark) {
  --bg: #fafafc;
  --bg-soft: #f3f4f6;
  --card: #ffffff;
  --card-2: #ffffff;
  --fg: #111827;
  --muted: #6b7280;
  --muted-2: #9ca3af;
  --border: #e5e7eb;
  --primary: #16a34a;
  --primary-2: #22c55e;
  --ring: rgba(34, 197, 94, 0.28);
  --shadow: 0 20px 40px -28px rgba(15, 23, 42, 0.35);
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background:
    radial-gradient(at 15% -10%, rgba(34, 197, 94, 0.12), transparent 45%),
    radial-gradient(at 90% 0%, rgba(74, 222, 128, 0.08), transparent 40%),
    var(--bg);
  color: var(--fg);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, "Noto Sans", sans-serif, "Apple Color Emoji";
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
}

.blog-container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

/* ---- Header ---- */
.blog-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid var(--border);
}

.blog-header__inner {
  max-width: 72rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 64px;
}

.blog-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.blog-logo__mark {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 0.6rem;
  font-size: 0.8rem;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #059669);
  box-shadow: 0 8px 18px -8px var(--ring);
}

.blog-logo__text span {
  background: linear-gradient(90deg, var(--primary-2), var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.blog-header__nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.blog-header__site {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.4rem 0.6rem;
  border-radius: 0.5rem;
}
.blog-header__site:hover {
  color: var(--fg);
}

.blog-theme-toggle {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 0.6rem;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--muted);
  cursor: pointer;
}
.blog-theme-toggle:hover {
  color: var(--fg);
}
.blog-theme-toggle__moon {
  display: none;
}
:root.dark .blog-theme-toggle__sun {
  display: none;
}
:root.dark .blog-theme-toggle__moon {
  display: inline;
}

/* ---- Language switcher ---- */
.blog-lang {
  position: relative;
}
.blog-lang > summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 0.6rem;
  background: var(--card);
  font-size: 0.9rem;
}
.blog-lang > summary::-webkit-details-marker {
  display: none;
}
.blog-lang__menu {
  position: absolute;
  inset-inline-end: 0;
  margin-top: 0.4rem;
  min-width: 12rem;
  max-height: 60vh;
  overflow: auto;
  padding: 0.4rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.8rem;
  box-shadow: var(--shadow);
  display: grid;
  gap: 0.1rem;
}
.blog-lang__menu a {
  padding: 0.5rem 0.7rem;
  border-radius: 0.55rem;
  text-decoration: none;
  color: var(--muted);
  font-size: 0.9rem;
}
.blog-lang__menu a:hover {
  background: color-mix(in srgb, var(--primary) 12%, transparent);
  color: var(--fg);
}
.blog-lang__menu a[aria-current="true"] {
  color: var(--primary-2);
  font-weight: 600;
}

/* ---- Main / article ---- */
.blog-main {
  flex: 1;
  padding-block: 2.5rem 4rem;
}

.blog-back {
  display: inline-block;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}
.blog-back:hover {
  color: var(--primary-2);
}

.blog-article__head h1 {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
  font-weight: 800;
}

.blog-article__excerpt {
  color: var(--muted);
  font-size: 1.15rem;
  margin: 0 0 1.25rem;
}

.blog-article__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  color: var(--muted-2);
  font-size: 0.9rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}
.blog-article__meta time::before {
  content: "·";
  margin-inline-end: 1rem;
  color: var(--muted-2);
}

.blog-cover {
  margin: 1.75rem 0;
}
.blog-cover img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

/* ---- Content typography ---- */
.blog-content {
  font-size: 1.08rem;
}
.blog-content > * {
  margin-block: 1.15rem;
}
.blog-content h2 {
  font-size: 1.6rem;
  margin-top: 2.4rem;
  letter-spacing: -0.01em;
  scroll-margin-top: 90px;
}
.blog-content h3 {
  font-size: 1.3rem;
  margin-top: 1.8rem;
  scroll-margin-top: 90px;
}
.blog-content h4 {
  font-size: 1.1rem;
  margin-top: 1.5rem;
}
.blog-content a {
  color: var(--primary-2);
  text-underline-offset: 3px;
}
.blog-content ul,
.blog-content ol {
  padding-inline-start: 1.4rem;
}
.blog-content li {
  margin-block: 0.4rem;
}
.blog-content img {
  max-width: 100%;
  height: auto;
}
.blog-content code {
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 0.35rem;
  padding: 0.1rem 0.35rem;
  font-size: 0.9em;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.blog-code {
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  overflow: auto;
}
.blog-code code {
  background: none;
  border: none;
  padding: 0;
}

.blog-figure {
  margin: 1.75rem 0;
}
.blog-figure img,
.blog-figure video {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: block;
}
.blog-figure figcaption,
.blog-quote figcaption {
  color: var(--muted-2);
  font-size: 0.88rem;
  text-align: center;
  margin-top: 0.6rem;
}

.blog-video {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}
.blog-video iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.blog-quote {
  margin: 1.75rem 0;
  padding-inline-start: 1.1rem;
  border-inline-start: 3px solid var(--primary);
}
.blog-quote blockquote {
  margin: 0;
  font-size: 1.2rem;
  font-style: italic;
  color: var(--fg);
}

.blog-callout {
  border-radius: var(--radius);
  padding: 1rem 1.15rem;
  border: 1px solid var(--border);
  background: var(--card);
}
.blog-callout--info {
  border-color: color-mix(in srgb, #3b82f6 40%, var(--border));
  background: color-mix(in srgb, #3b82f6 10%, var(--card));
}
.blog-callout--warning {
  border-color: color-mix(in srgb, #f59e0b 45%, var(--border));
  background: color-mix(in srgb, #f59e0b 10%, var(--card));
}
.blog-callout--success {
  border-color: color-mix(in srgb, var(--primary) 45%, var(--border));
  background: color-mix(in srgb, var(--primary) 10%, var(--card));
}

.blog-divider {
  border: none;
  border-top: 1px solid var(--border);
}

/* ---- Social embeds ---- */
.blog-embed {
  margin: 1.75rem 0;
  display: flex;
  justify-content: center;
}
.blog-embed blockquote,
.blog-embed .fb-post {
  max-width: 100%;
}
.blog-embed-card {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  width: 100%;
  padding: 1rem 1.15rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  text-decoration: none;
  color: var(--fg);
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.blog-embed-card:hover {
  border-color: var(--primary);
  transform: translateY(-1px);
}
.blog-embed-card__icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 0.6rem;
  background: var(--card-2);
  font-weight: 800;
}
.blog-embed-card__text {
  display: grid;
}
.blog-embed-card__text span {
  color: var(--muted);
  font-size: 0.88rem;
}

/* ---- References ---- */
.blog-references {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.blog-references h2 {
  font-size: 1.25rem;
  margin: 0 0 0.75rem;
}
.blog-references ol {
  padding-inline-start: 1.3rem;
  color: var(--muted);
  font-size: 0.95rem;
}
.blog-references li {
  margin-block: 0.5rem;
}
.blog-references a {
  color: var(--primary-2);
  word-break: break-word;
}

/* ---- Share ---- */
.blog-share {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.blog-share__label {
  color: var(--muted);
  font-size: 0.9rem;
  margin-inline-end: 0.35rem;
}
.blog-share__btn {
  display: inline-grid;
  place-items: center;
  min-width: 40px;
  height: 40px;
  padding-inline: 0.7rem;
  border-radius: 0.6rem;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--fg);
  text-decoration: none;
  font-size: 0.95rem;
  cursor: pointer;
}
.blog-share__btn:hover {
  border-color: var(--primary);
  color: var(--primary-2);
}
.blog-share__copy {
  font-size: 0.85rem;
}

/* ---- Index ---- */
.blog-body--index .blog-main {
  padding-top: 1.5rem;
}
.blog-index__head {
  text-align: center;
  margin-bottom: 2.5rem;
}
.blog-index__head h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin: 0 0 0.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.blog-index__head p {
  color: var(--muted);
  margin: 0;
}
.blog-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 20rem), 1fr));
  max-width: 64rem;
  margin-inline: auto;
}
.blog-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.blog-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}
.blog-card__link {
  text-decoration: none;
  color: inherit;
  display: block;
}
.blog-card__media {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--card-2);
}
.blog-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.blog-card__body {
  padding: 1.1rem 1.2rem 1.3rem;
}
.blog-card__body h2 {
  font-size: 1.2rem;
  margin: 0 0 0.5rem;
  line-height: 1.3;
}
.blog-card__body p {
  color: var(--muted);
  margin: 0 0 0.9rem;
  font-size: 0.95rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.blog-card__meta {
  display: flex;
  gap: 0.9rem;
  color: var(--muted-2);
  font-size: 0.83rem;
}
.blog-card__more {
  display: inline-block;
  margin-top: 0.7rem;
  color: var(--primary-2);
  font-size: 0.85rem;
  font-weight: 600;
}
.blog-empty {
  text-align: center;
  color: var(--muted);
  padding: 4rem 0;
}

/* ---- Footer ---- */
.blog-footer {
  border-top: 1px solid var(--border);
  padding-block: 1.75rem;
  color: var(--muted-2);
  font-size: 0.88rem;
  text-align: center;
}
.blog-footer a {
  color: var(--muted);
  text-decoration: none;
}
.blog-footer a:hover {
  color: var(--primary-2);
}

/* ---- 404 ---- */
.blog-notfound {
  text-align: center;
  padding: 4rem 0;
}
.blog-notfound h1 {
  font-size: 4rem;
  margin: 0;
}

[dir="rtl"] .blog-article__meta time::before {
  margin-inline-end: 1rem;
}