/* =========================================================================
   Modern Jekyll template for blog.tayfunsen.com
   - CSS custom properties for theming
   - prefers-color-scheme dark mode
   - System font stack (no external font requests)
   - Mobile-first responsive layout built on flexbox / grid
   ========================================================================= */

/* ---------- Tokens: light theme (default) ---------- */
:root {
  --c-bg: #fafafa;
  --c-bg-elevated: #ffffff;
  --c-bg-muted: #f1f3f5;
  --c-border: #e5e7eb;
  --c-border-strong: #d1d5db;
  --c-text: #1f2328;
  --c-text-muted: #57606a;
  --c-text-subtle: #6e7781;
  --c-accent: #0e8ea0;
  --c-accent-strong: #0a6f7d;
  --c-accent-soft: #e6f4f7;
  --c-date: #27417d;
  --c-tag-bg: #eef0f2;
  --c-tag-bg-hover: #dde1e6;
  --c-link: #0969da;
  --c-code-bg: #f6f8fa;
  --c-quote-bg: #f6f8fa;
  --c-quote-fg: #bf3f0a;

  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.04);
  --shadow-hover: 0 2px 4px rgba(0, 0, 0, 0.06), 0 8px 24px rgba(0, 0, 0, 0.08);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
               Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
               "Liberation Mono", monospace;

  --content-max: 720px;
  --header-max: 960px;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;

  --transition: 150ms ease;
}

/* ---------- Tokens: dark theme ----------
   Applies when the user picked dark (`data-theme="dark"`), or when no
   explicit choice was made and the system prefers dark. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --c-bg: #0d1117;
    --c-bg-elevated: #161b22;
    --c-bg-muted: #1f242c;
    --c-border: #30363d;
    --c-border-strong: #424a53;
    --c-text: #e6edf3;
    --c-text-muted: #9da7b3;
    --c-text-subtle: #7d8590;
    --c-accent: #4ec3d4;
    --c-accent-strong: #79d4e1;
    --c-accent-soft: #1a2a30;
    --c-date: #79b8ff;
    --c-tag-bg: #21262d;
    --c-tag-bg-hover: #2d333b;
    --c-link: #58a6ff;
    --c-code-bg: #161b22;
    --c-quote-bg: #1f242c;
    --c-quote-fg: #f0916a;
    --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.3), 0 4px 12px rgba(0, 0, 0, 0.35);
    --shadow-hover: 0 2px 4px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.5);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --c-bg: #0d1117;
  --c-bg-elevated: #161b22;
  --c-bg-muted: #1f242c;
  --c-border: #30363d;
  --c-border-strong: #424a53;
  --c-text: #e6edf3;
  --c-text-muted: #9da7b3;
  --c-text-subtle: #7d8590;
  --c-accent: #4ec3d4;
  --c-accent-strong: #79d4e1;
  --c-accent-soft: #1a2a30;
  --c-date: #79b8ff;
  --c-tag-bg: #21262d;
  --c-tag-bg-hover: #2d333b;
  --c-link: #58a6ff;
  --c-code-bg: #161b22;
  --c-quote-bg: #1f242c;
  --c-quote-fg: #f0916a;
  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.3), 0 4px 12px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 2px 4px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.5);
  color-scheme: dark;
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  padding: 0;
  background-color: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--space-3);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.01em;
}

p { margin: 0 0 var(--space-4); }
ul, ol { margin: 0 0 var(--space-4); padding-left: 1.4em; }
img { max-width: 100%; height: auto; border: 0; }

a {
  color: var(--c-link);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover, a:focus-visible { text-decoration: underline; }
a:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

code, pre {
  font-family: var(--font-mono);
  font-size: 0.92em;
}
code {
  background-color: var(--c-code-bg);
  padding: 0.15em 0.35em;
  border-radius: var(--radius-sm);
}
pre {
  background-color: var(--c-code-bg);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  overflow-x: auto;
}
pre code { background: transparent; padding: 0; }

blockquote {
  margin: var(--space-5) 0;
  padding: var(--space-3) var(--space-5);
  background-color: var(--c-quote-bg);
  border-left: 3px solid var(--c-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--c-quote-fg);
}

hr {
  border: 0;
  border-top: 1px solid var(--c-border);
  margin: var(--space-6) 0;
}

abbr { border-bottom: 1px dotted var(--c-text-subtle); cursor: help; }

::selection {
  background-color: var(--c-accent-soft);
  color: var(--c-text);
}

/* ---------- Accessibility helpers ---------- */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  background: var(--c-accent);
  color: #fff;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  z-index: 100;
  transition: top var(--transition);
}
.skip-link:focus { top: var(--space-4); text-decoration: none; }

/* ---------- Site header ---------- */
.site-header {
  border-bottom: 1px solid var(--c-border);
  background-color: var(--c-bg-elevated);
  padding: var(--space-4) var(--space-5);
}
.site-header__inner {
  max-width: var(--header-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  flex-wrap: wrap;
}
.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--c-text);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}
.site-header__brand:hover { text-decoration: none; }
.site-header__logo {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--c-accent);
  padding: 4px;
}
.site-header__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.site-header__title { white-space: nowrap; }
.site-header__tagline {
  color: var(--c-text-muted);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0;
}

/* ---------- Site nav ---------- */
.site-nav ul {
  list-style: none;
  display: flex;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
}
.site-nav a {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--c-text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: background-color var(--transition), color var(--transition);
}
.site-nav a:hover, .site-nav a:focus-visible {
  background-color: var(--c-bg-muted);
  color: var(--c-text);
  text-decoration: none;
}
.site-nav a[aria-current="page"] {
  color: var(--c-accent-strong);
  background-color: var(--c-accent-soft);
}
.site-nav .icon { display: block; }
.theme-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-sm);
  background: none;
  color: var(--c-text-muted);
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition);
}
.theme-toggle:hover, .theme-toggle:focus-visible {
  background-color: var(--c-bg-muted);
  color: var(--c-text);
}
/* Only the icon for the active theme is visible; the two icons are
   stacked and cross-fade/rotate when the theme flips. */
.theme-toggle .icon {
  position: absolute;
  transition: opacity 250ms ease, transform 250ms ease;
}
.theme-toggle__moon { opacity: 0; transform: rotate(90deg) scale(0.5); }
.theme-toggle--dark .theme-toggle__sun { opacity: 0; transform: rotate(-90deg) scale(0.5); }
.theme-toggle--dark .theme-toggle__moon { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .theme-toggle .icon { transition: none; }
}

/* ---------- Main / layout ---------- */
.site-main {
  flex: 1 0 auto;
  width: 100%;
  max-width: var(--header-max);
  margin: 0 auto;
  padding: var(--space-6) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-7);
}

.section-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-text-subtle);
  margin: 0 0 var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--c-border);
}

/* ---------- About page ---------- */
.about-page {
  background-color: var(--c-bg-elevated);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
}

.about-page__intro {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--c-border);
}
.about-page__name {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0;
  letter-spacing: -0.02em;
}
.about-page__tagline {
  margin: 0;
  color: var(--c-text-muted);
  font-size: 1rem;
}
.about-page__currently {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0;
  padding: 0.35em 0.8em;
  background-color: var(--c-accent-soft);
  color: var(--c-accent-strong);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
}
.about-page__currently-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--c-accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.about-page__section {
  margin-bottom: var(--space-7);
}
.about-page__section:last-of-type { margin-bottom: 0; }

.about-page__section-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-text-subtle);
  margin: 0 0 var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--c-border);
}

.about-page__contact-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-3);
  padding: 0;
  margin: 0;
}
.about-page__contact-list li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--space-3);
  background-color: var(--c-bg-muted);
  border-radius: var(--radius-md);
  font-size: 0.92rem;
}
.about-page__contact-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-text-subtle);
}
.about-page__contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.6rem;
  align-items: center;
}
.about-page__contact-links a {
  white-space: nowrap;
}
.about-page__contact-links a + a::before {
  content: "·";
  margin-right: 0.6rem;
  color: var(--c-text-subtle);
  opacity: 0.5;
}
.about-page__contact-note {
  display: block;
  margin-top: 2px;
  font-size: 0.75rem;
  color: var(--c-text-subtle);
  font-style: italic;
}

.about-page__objective {
  margin: 0;
  color: var(--c-text-muted);
  font-size: 1.02rem;
  font-style: italic;
  line-height: 1.6;
}



.about-page__up-to {
  margin: 0;
  color: var(--c-text-muted);
  font-size: 1rem;
  line-height: 1.6;
}

.about-page__footer {
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: 1px solid var(--c-border);
  text-align: center;
}
.about-page__updated {
  margin: 0;
  color: var(--c-text-subtle);
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
}

/* ---------- Post list ---------- */
.post-list-section { display: contents; }

.post-card {
  background-color: var(--c-bg-elevated);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-6);
  margin-bottom: var(--space-5);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
}
.post-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.post-card__header {
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--c-border);
  text-align: center;
}
.post-card__title {
  margin: 0 0 var(--space-2);
  font-size: 1.5rem;
  line-height: 1.3;
}
.post-card__title a {
  color: var(--c-text);
}
.post-card__title a:hover { color: var(--c-accent-strong); text-decoration: none; }
.post-card__meta {
  margin: 0;
  font-size: 0.85rem;
  color: var(--c-text-subtle);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  align-items: center;
}
.post-card__meta time { color: var(--c-date); font-variant-numeric: tabular-nums; }
.post-card__tags {
  display: inline-flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-left: var(--space-2);
  padding-left: var(--space-3);
  border-left: 1px solid var(--c-border);
}
.post-card__tag {
  background-color: var(--c-tag-bg);
  color: var(--c-text-muted);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 500;
  transition: background-color var(--transition), color var(--transition);
}
.post-card__tag:hover, .post-card__tag:focus-visible {
  background-color: var(--c-tag-bg-hover);
  color: var(--c-text);
  text-decoration: none;
}
.post-card__excerpt {
  text-align: justify;
  font-size: 1.02rem;
  line-height: 1.6;
}
.post-card__excerpt > *:last-child { margin-bottom: 0; }

/* ---------- Tweet grid (home-page list) ---------- */
.tweet-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}
.tweet-grid .tweet-card:only-child { grid-column: 1 / -1; }

/* Compact tweet cards inside the grid */
.tweet-grid .tweet-card {
  margin-bottom: 0;
  padding: var(--space-4);
}
.tweet-grid .tweet-card__header { gap: var(--space-2); }
.tweet-grid .tweet-card__avatar { width: 40px; height: 40px; }
.tweet-grid .tweet-card__name { font-size: 0.95rem; }
.tweet-grid .tweet-card__handle { font-size: 0.82rem; }
.tweet-grid .tweet-card__date { font-size: 0.8rem; }
.tweet-grid .tweet-card__body { margin-bottom: var(--space-3); }
.tweet-grid .tweet-card__body .tweet-text { font-size: 0.95rem; }
.tweet-grid .tweet-card__body .tweet-media__item img { max-height: 320px; }
.tweet-grid .tweet-card__body .tweet-media--grid .tweet-media__item img { max-height: 200px; }
.tweet-grid .tweet-card__stats { gap: var(--space-3); font-size: 0.8rem; }
.tweet-grid .tweet-card__source { font-size: 0.8rem; }

/* ---------- Tweet card (home-page list) ---------- */
.tweet-card {
  background-color: var(--c-bg-elevated);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-6);
  margin-bottom: var(--space-5);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
}
.tweet-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.tweet-card--pinned {
  border-color: var(--c-accent);
  box-shadow: 0 0 0 1px var(--c-accent) inset, var(--shadow-card);
}
.tweet-card--page {
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  max-width: var(--content-max);
  margin-left: auto;
  margin-right: auto;
  font-size: 1.05rem;
}
.tweet-card__pin {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  background-color: var(--c-accent-soft);
  color: var(--c-accent-strong);
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.tweet-card--pinned .tweet-card__header { margin-top: var(--space-3); }

.tweet-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--c-border);
}
.tweet-card__avatar-link {
  flex: 0 0 auto;
  display: block;
}
.tweet-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--c-bg-muted);
  object-fit: cover;
  display: block;
}
.tweet-card__author {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1 1 auto;
  line-height: 1.25;
}
.tweet-card__name {
  color: var(--c-text);
  font-weight: 700;
  font-size: 1rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tweet-card__name:hover { color: var(--c-accent-strong); text-decoration: none; }
.tweet-card__handle {
  color: var(--c-text-subtle);
  font-size: 0.88rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tweet-card__handle:hover { color: var(--c-text-muted); text-decoration: none; }
.tweet-card__date {
  flex: 0 0 auto;
  color: var(--c-text-subtle);
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.tweet-card__body { margin-bottom: var(--space-4); }
.tweet-card__body--page { font-size: 1.1rem; line-height: 1.65; }
.tweet-card__body .tweet-text {
  margin: 0 0 var(--space-3);
  white-space: pre-wrap;
  word-wrap: break-word;
  font-size: 1.02rem;
  line-height: 1.55;
  color: var(--c-text);
}
.tweet-card__body--page .tweet-text { font-size: 1.1rem; line-height: 1.6; }
.tweet-card__body .tweet-text:last-child { margin-bottom: 0; }
.tweet-card__body a {
  color: var(--c-link);
  text-decoration: none;
}
.tweet-card__body a:hover, .tweet-card__body a:focus-visible {
  text-decoration: underline;
}
.tweet-card__body .tweet-mention { color: var(--c-link); font-weight: 500; }

.tweet-card__body .tweet-media {
  display: block;
  margin-top: var(--space-3);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--c-border);
  background-color: var(--c-bg-muted);
}
.tweet-card__body .tweet-media__item {
  display: block;
  line-height: 0;
}
.tweet-card__body .tweet-media__item img {
  width: 100%;
  height: auto;
  max-height: 480px;
  object-fit: cover;
  display: block;
  border-radius: 0;
  margin: 0;
}
.tweet-card__body .tweet-media--grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-auto-rows: 1fr;
  gap: 2px;
  background-color: var(--c-border);
}
.tweet-card__body .tweet-media--grid .tweet-media__item {
  overflow: hidden;
  min-height: 0;
}
.tweet-card__body .tweet-media--grid .tweet-media__item img {
  width: 100%;
  height: 100%;
  max-height: 280px;
  object-fit: cover;
}
.tweet-card__body .tweet-media--grid > :first-child:nth-last-child(3) {
  grid-row: 1 / span 2;
}
.tweet-card__body .tweet-media--grid > :first-child:nth-last-child(3) img {
  max-height: 100%;
}

.tweet-card__footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--c-border);
}
.tweet-card__stats {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin: 0;
  padding: 0;
  color: var(--c-text-subtle);
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
}
.tweet-card__stat {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.tweet-card__stat svg { display: block; }
.tweet-card__stat--replies svg { color: var(--c-text-subtle); }
.tweet-card__stat--reposts svg { color: var(--c-text-subtle); }
.tweet-card__stat--likes svg { color: var(--c-text-subtle); }
.tweet-card__stat--views svg { color: var(--c-text-subtle); }
.tweet-card__stat--replies:hover svg { color: #1d9bf0; }
.tweet-card__stat--reposts:hover svg { color: #00ba7c; }
.tweet-card__stat--likes:hover svg { color: #f91880; }

.tweet-card__source {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--c-text-subtle);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition), color var(--transition);
}
.tweet-card__source:hover, .tweet-card__source:focus-visible {
  color: var(--c-text);
  background-color: var(--c-bg-muted);
  text-decoration: none;
}

/* ---------- Single post ---------- */
.post {
  background-color: var(--c-bg-elevated);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
}
.post__header {
  text-align: center;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--c-border);
}
.post__title {
  margin: 0 0 var(--space-3);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  letter-spacing: -0.02em;
}
.post__meta {
  margin: 0;
  color: var(--c-text-subtle);
  font-size: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  align-items: center;
}
.post__meta time { color: var(--c-date); font-variant-numeric: tabular-nums; }
.post__tags {
  display: inline-flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding-left: var(--space-3);
  border-left: 1px solid var(--c-border);
}
.post__content {
  max-width: var(--content-max);
  margin: 0 auto;
  font-size: 1.05rem;
  line-height: 1.7;
}
.post__content img { border-radius: var(--radius-md); margin: var(--space-4) 0; }
.post__content h2 { margin-top: var(--space-7); font-size: 1.4rem; }
.post__content h3 { margin-top: var(--space-5); font-size: 1.15rem; }
.post__footer {
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  border-top: 1px solid var(--c-border);
  text-align: center;
}
.post__back {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  color: var(--c-text-muted);
  font-size: 0.9rem;
  transition: background-color var(--transition), color var(--transition);
}
.post__back:hover { background-color: var(--c-bg-muted); color: var(--c-text); text-decoration: none; }

/* ---------- Pagination ---------- */
.pagination {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-6);
  padding: var(--space-4);
}
.pagination__link {
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--c-border-strong);
  border-radius: var(--radius-sm);
  color: var(--c-text);
  background-color: var(--c-bg-elevated);
  font-weight: 500;
  font-size: 0.9rem;
  transition: background-color var(--transition), border-color var(--transition);
}
.pagination__link:hover, .pagination__link:focus-visible {
  background-color: var(--c-bg-muted);
  border-color: var(--c-accent);
  text-decoration: none;
}
.pagination__status {
  color: var(--c-text-subtle);
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
}

/* ---------- Tags page ---------- */
.page-title {
  margin: 0 0 var(--space-5);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--c-border);
  font-size: 1.75rem;
}
.tag-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-7);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.tag-list li a {
  display: inline-block;
  padding: var(--space-2) var(--space-3);
  background-color: var(--c-tag-bg);
  color: var(--c-text-muted);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  transition: background-color var(--transition), color var(--transition);
}
.tag-list li a:hover { background-color: var(--c-tag-bg-hover); color: var(--c-text); text-decoration: none; }

.tag-section { margin-bottom: var(--space-7); }
.tag-section h2 {
  font-size: 1.25rem;
  margin: 0 0 var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--c-border);
}
.post-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.post-list li {
  padding: var(--space-2) 0;
  font-size: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: baseline;
}
.post-list time {
  color: var(--c-date);
  font-variant-numeric: tabular-nums;
  font-size: 0.88rem;
  min-width: 7em;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--c-border);
  background-color: var(--c-bg-elevated);
  padding: var(--space-5) var(--space-5);
  margin-top: var(--space-7);
  font-size: 0.88rem;
  color: var(--c-text-muted);
}
.site-footer__inner {
  max-width: var(--header-max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
}
.site-footer__inner p { margin: 0; }

#footername { color: var(--c-accent); font-weight: 600; }

/* ---------- Responsive tweaks ---------- */
@media (max-width: 640px) {
  body { font-size: 16px; }
  .site-header { padding: var(--space-3) var(--space-4); }
  .site-header__inner { gap: var(--space-3); }
  .site-header__title { font-size: 0.95rem; }
  .site-nav a { padding: var(--space-2); font-size: 0.88rem; }
  .site-main { padding: var(--space-5) var(--space-4); gap: var(--space-6); }

  .about-page { padding: var(--space-5) var(--space-4); }
  .about-page__contact-list { grid-template-columns: 1fr; }
  .about-page__intro { gap: var(--space-2); }

  .post-card { padding: var(--space-4); }
  .post-card__title { font-size: 1.25rem; }
  .post-card__meta { flex-direction: column; gap: var(--space-1); }
  .post-card__tags { padding-left: 0; border-left: none; margin-left: 0; }

  .post { padding: var(--space-5) var(--space-4); }
  .post__tags { padding-left: 0; border-left: none; }

  .tweet-grid { grid-template-columns: 1fr; }
  .tweet-card { padding: var(--space-4); }
  .tweet-card--page { padding: var(--space-5) var(--space-4); }
  .tweet-card__avatar { width: 40px; height: 40px; }
  .tweet-card__name { font-size: 0.95rem; }
  .tweet-card__handle { font-size: 0.82rem; }
  .tweet-card__date { font-size: 0.8rem; }
  .tweet-card__stats { gap: var(--space-3); font-size: 0.8rem; }
  .tweet-card__body .tweet-media--grid .tweet-media__item img { max-height: 180px; }

  .site-footer__inner { justify-content: center; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .about-page__currently-dot { animation: none; }
  .post-card:hover { transform: none; }
  .tweet-card:hover { transform: none; }
}