/* =========================================================
   Rob Johnson Ghost Theme — screen.css
   Brand: #FCFAF8 bg | #29303D text | #2A9D90 teal accent
   Font: Plus Jakarta Sans
   ========================================================= */

/* ---- Variables ---- */
:root {
  --color-bg: #FCFAF8;
  --color-bg-card: #FFFFFF;
  --color-bg-muted: #F0ECE6;
  --color-text: #29303D;
  --color-text-muted: #6B7280;
  --color-accent: #2A9D90;
  --color-accent-dark: #217D72;
  --color-accent-light: rgba(42, 157, 144, 0.12);
  --color-border: #E5E0D8;
  --color-border-input: #C9C2B6;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 6px;
  --radius-lg: 12px;
  --max-width: 1200px;
  --content-width: 720px;
  --shadow-card: 0 1px 3px rgba(41, 48, 61, 0.06), 0 1px 2px rgba(41, 48, 61, 0.04);
  --shadow-card-hover: 0 8px 24px rgba(41, 48, 61, 0.10), 0 2px 6px rgba(41, 48, 61, 0.06);
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--color-accent); }

/* ---- Layout Utilities ---- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

/* ---- Navigation ---- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(252, 250, 248, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.site-nav__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-nav__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-text);
  text-decoration: none;
}

.site-nav__logo:hover { color: var(--color-text); }

.site-nav__logo-icon {
  color: var(--color-accent);
  flex-shrink: 0;
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.site-nav__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(41, 48, 61, 0.65);
  transition: color 0.15s ease;
  text-decoration: none;
}

.site-nav__link:hover,
.site-nav__link--active {
  color: var(--color-accent);
}

.site-nav__cta {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1.25rem;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius);
  transition: background 0.15s ease;
  text-decoration: none;
}

.site-nav__cta:hover {
  background: var(--color-accent-dark);
  color: #fff;
}

.site-nav__mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text);
  padding: 4px;
}

.site-nav__mobile-menu {
  display: none;
  flex-direction: column;
  padding: 1rem 2rem 1.5rem;
  border-top: 1px solid var(--color-border);
  gap: 0.75rem;
}

.site-nav__mobile-menu.is-open { display: flex; }

.site-nav__mobile-link {
  font-size: 1rem;
  font-weight: 500;
  color: rgba(41, 48, 61, 0.7);
  padding: 0.25rem 0;
}

.site-nav__mobile-link--active { color: var(--color-accent); }

.site-nav__mobile-cta {
  display: inline-flex;
  align-self: flex-start;
  margin-top: 0.5rem;
  padding: 0.5rem 1.25rem;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius);
  text-decoration: none;
}

@media (max-width: 768px) {
  .site-nav__links { display: none; }
  .site-nav__mobile-toggle { display: flex; }
}

/* ---- Blog Header ---- */
.blog-header {
  padding: 4rem 0 2.5rem;
}

.blog-header__title {
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-text);
  margin-bottom: 1rem;
}

.blog-header__subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 560px;
  line-height: 1.6;
}

/* ---- Tag Filters ---- */
.tag-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 2rem;
}

.tag-filter {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 500;
  background: var(--color-bg-muted);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  transition: all 0.15s ease;
  text-decoration: none;
}

.tag-filter:hover,
.tag-filter--active {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

/* ---- Post Grid ---- */
.post-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
  padding-top: 2rem;
  padding-bottom: 4rem;
}

@media (max-width: 768px) {
  .post-grid { grid-template-columns: 1fr; }
}

/* ---- Post Card ---- */
.post-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.post-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

.post-card__image-link {
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  flex-shrink: 0;
}

.post-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.post-card:hover .post-card__image { transform: scale(1.03); }

.post-card__image--placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #d0f0ec 0%, #b8e4df 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.post-card__content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.post-card__meta-top {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.post-card__tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  background: var(--color-accent-light);
  color: var(--color-accent);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  text-decoration: none;
}

.post-card__tag:hover { background: var(--color-accent); color: #fff; }

.post-card__date,
.post-card__reading-time {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.post-card__dot {
  color: var(--color-border-input);
  font-size: 0.8rem;
}

.post-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.625rem;
}

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

.post-card__title a:hover { color: var(--color-accent); }

.post-card__excerpt {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 1.25rem;
}

.post-card__read-more {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.15s ease;
  align-self: flex-start;
}

.post-card__read-more:hover { color: var(--color-accent-dark); }

/* ---- Pagination ---- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 2rem;
  margin-bottom: 3rem;
  border-top: 1px solid var(--color-border);
}

.pagination__link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
}

.pagination__link:hover { color: var(--color-accent-dark); }
.pagination__info { font-size: 0.875rem; color: var(--color-text-muted); }

/* ---- Single Post ---- */
.post-container {
  padding-top: 2.5rem;
  padding-bottom: 5rem;
}

.post-back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  margin-bottom: 2.5rem;
  transition: color 0.15s ease;
}

.post-back-link:hover { color: var(--color-accent-dark); }

.post-header {
  max-width: var(--content-width);
  margin: 0 auto 2.5rem;
}

.post-header__tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.post-tag {
  display: inline-flex;
  padding: 0.2rem 0.6rem;
  background: var(--color-accent-light);
  color: var(--color-accent);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.post-tag:hover { background: var(--color-accent); color: #fff; }

.post-header__title {
  font-size: clamp(1.875rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: 1.25rem;
}

.post-header__meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.post-header__dot {
  color: var(--color-border-input);
}

.post-feature-image {
  max-width: var(--content-width);
  margin: 0 auto 3rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.post-feature-image img {
  width: 100%;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.post-feature-image figcaption {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 0.5rem;
  padding: 0 1rem;
}

/* ---- Post Content (Ghost Card Styling) ---- */
.post-content {
  max-width: var(--content-width);
  margin: 0 auto;
}

.gh-content > * + * { margin-top: 1.5em; }

.gh-content p {
  font-size: 1.05rem;
  line-height: 1.75;
  color: rgba(41, 48, 61, 0.85);
}

.gh-content h2 {
  font-size: 1.65rem;
  font-weight: 700;
  margin-top: 2.5em;
  margin-bottom: 0.75em;
  color: var(--color-text);
}

.gh-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-top: 2em;
  margin-bottom: 0.6em;
  color: var(--color-text);
}

.gh-content h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-top: 1.75em;
  margin-bottom: 0.5em;
}

.gh-content a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.gh-content a:hover { color: var(--color-accent-dark); }

.gh-content strong { color: var(--color-text); font-weight: 700; }

.gh-content em { font-style: italic; }

.gh-content blockquote {
  border-left: 4px solid var(--color-accent);
  padding: 0.75rem 1.25rem 0.75rem 1.5rem;
  margin: 2rem 0;
  background: var(--color-accent-light);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  font-size: 1.1rem;
  color: rgba(41, 48, 61, 0.75);
  line-height: 1.7;
}

.gh-content ul, .gh-content ol {
  padding-left: 1.5rem;
}

.gh-content li {
  font-size: 1.05rem;
  line-height: 1.7;
  color: rgba(41, 48, 61, 0.85);
  margin-bottom: 0.4em;
}

.gh-content hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 3rem 0;
}

.gh-content img {
  border-radius: var(--radius-lg);
  width: 100%;
}

.gh-content pre {
  background: var(--color-text);
  color: #e5e7eb;
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-lg);
  overflow-x: auto;
  font-size: 0.875rem;
  line-height: 1.7;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

.gh-content code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.875em;
  background: var(--color-bg-muted);
  color: var(--color-accent-dark);
  padding: 0.15em 0.4em;
  border-radius: 4px;
}

.gh-content pre code {
  background: none;
  color: inherit;
  padding: 0;
  font-size: inherit;
}

/* Ghost card styling */
.kg-width-wide {
  max-width: 1100px;
  margin-left: calc(50% - 550px);
}

.kg-width-full {
  max-width: 100vw;
  width: 100vw;
  margin-left: calc(50% - 50vw);
}

.kg-callout-card {
  display: flex;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: var(--color-bg-muted);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-accent);
}

.kg-callout-card .kg-callout-emoji { font-size: 1.25rem; flex-shrink: 0; }
.kg-callout-card .kg-callout-text { font-size: 1rem; line-height: 1.6; }

.kg-bookmark-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

/* ---- Post Footer ---- */
.post-footer {
  max-width: var(--content-width);
  margin: 3rem auto 0;
  padding-top: 2.5rem;
  border-top: 1px solid var(--color-border);
}

.post-author-card {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.5rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  margin-bottom: 2rem;
}

.post-author-card__avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.post-author-card__avatar--initials {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent), var(--color-text));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.post-author-card__name {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.post-author-card__bio {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0.25rem 0 0;
}

/* ---- Post CTA ---- */
.post-cta {
  padding: 2rem;
  background: var(--color-accent-light);
  border: 1px solid rgba(42, 157, 144, 0.2);
  border-radius: var(--radius-lg);
  text-align: center;
  margin-bottom: 2rem;
}

.post-cta__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.post-cta__text {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.625rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius);
  text-decoration: none;
  transition: background 0.15s ease, transform 0.1s ease;
  cursor: pointer;
  border: none;
  font-family: var(--font-sans);
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
}

.btn--primary:hover {
  background: var(--color-accent-dark);
  color: #fff;
  transform: translateY(-1px);
}

.btn--secondary {
  background: var(--color-bg-muted);
  color: var(--color-text);
  border: 1px solid var(--color-border-input);
}

.btn--secondary:hover {
  background: #e6e0d8;
  color: var(--color-text);
}

/* ---- Post Tags ---- */
.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* ---- Post Navigation ---- */
.post-nav {
  max-width: var(--content-width);
  margin: 2.5rem auto 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  border-top: 1px solid var(--color-border);
  padding-top: 2rem;
}

.post-nav__link {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.post-nav__link:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card);
}

.post-nav__link--next { text-align: right; }

.post-nav__label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
}

.post-nav__title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
}

/* ---- Footer ---- */
.site-footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: 2rem 0;
  margin-top: auto;
}

.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-footer__copy {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.site-footer__links {
  display: flex;
  gap: 1rem;
}

.site-footer__social-link {
  color: var(--color-text-muted);
  transition: color 0.15s ease;
  display: flex;
  align-items: center;
}

.site-footer__social-link:hover { color: var(--color-accent); }

/* ---- No Posts ---- */
.no-posts {
  color: var(--color-text-muted);
  font-size: 1rem;
  text-align: center;
  padding: 3rem 0;
  grid-column: 1 / -1;
}

/* ---- Error Page ---- */
.error-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  text-align: center;
  padding: 3rem 2rem;
}

.error-page__code {
  font-size: 6rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.error-page__title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.75rem;
}

.error-page__message {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  max-width: 400px;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .container { padding: 0 1.5rem; }
}

@media (max-width: 640px) {
  .container { padding: 0 1rem; }
  .blog-header { padding: 2.5rem 0 1.5rem; }
  .post-nav { grid-template-columns: 1fr; }
  .post-author-card { flex-direction: column; align-items: center; text-align: center; }
  .site-footer__inner { flex-direction: column; text-align: center; }
}