/* ==============================================================
   kolmn Blog — Editorial Magazine (Substack / NYT vibe)
   Inspired by impeccable.style v3, tasteskill.dev
   Mobile-first, structurally distinct from 0cap
   ============================================================== */

/* --- Google Fonts: Satoshi + Clash Display --- */
@import url('https://api.fontshare.com/v2/css?f[]=satoshi@300,400,500,700,900&f[]=clash-display@400,500,600,700&display=swap');

/* ===== MOBILE FIRST: Base styles for < 640px ===== */

/* --- Design Tokens --- */
:root {
  --color-bg: #F7F3EA;
  --color-bg-card: #FFFFFF;
  --color-bg-header: rgba(247, 243, 234, 0.93);
  --color-bg-footer: #161713;
  --color-text-primary: #161713;
  --color-text-secondary: #7A7A72;
  --color-text-meta: #A8A499;
  --color-accent: #6F7A46;
  --color-accent-hover: #5A6338;
  --color-accent-light: #E8EBDE;
  --color-border: #E5E0D5;
  --color-border-light: #EFEBE2;
  --font-display: 'Clash Display', 'SF Pro Display', -apple-system, sans-serif;
  --font-body: 'Satoshi', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 9999px;
  --shadow-card: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-card-hover: 0 8px 24px rgba(0,0,0,0.08);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

:root { --ghost-accent-color: #6F7A46 !important; }

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text-primary);
  -webkit-font-smoothing: antialiased;
  line-height: 1.65;
}

.outer { padding: 0 16px; }
.inner { max-width: 1200px; margin: 0 auto; }

/* ===== HEADER ===== */
.gh-head {
  background: var(--color-bg-header);
  border-bottom: 1px solid var(--color-border-light);
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.gh-head-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}
.gh-head-logo {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
  text-decoration: none;
}
.gh-head-menu .nav {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 28px;
}
.gh-head-menu .nav li a {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition);
}
.gh-head-menu .nav li a:hover { color: var(--color-text-primary); }
.gh-head-actions { display: flex; align-items: center; gap: 12px; }
.gh-head-link {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
}
.gh-head-link:hover { color: var(--color-text-primary); }
.gh-head-button {
  display: inline-flex;
  align-items: center;
  padding: 7px 18px;
  background: var(--color-accent);
  color: #FFFFFF !important;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-xl);
  text-decoration: none;
  transition: all var(--transition);
}
.gh-head-button:hover { background: var(--color-accent-hover); }
.gh-search { color: var(--color-text-secondary); }

/* ===== HERO (centered, editorial, with moss accent) ===== */
.site-header-content {
  background: var(--color-bg);
  padding: 56px 16px 44px;
  text-align: center;
  position: relative;
}
.site-header-cover { display: none !important; }
.site-header-inner { max-width: 600px; margin: 0 auto; }
.site-title {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--color-text-primary);
  margin: 0 0 12px;
}
.site-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--color-accent);
  margin: 16px auto 0;
  border-radius: 2px;
}
.site-description {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.6;
}

/* ===== FEED: Magazine GRID (distinct from 0cap's list) ===== */
.site-main { background: var(--color-bg); padding: 28px 0; }
.post-feed {
  display: grid !important;
  grid-template-columns: 1fr !important;
  gap: 20px !important;
}

/* Featured first post: tall hero card */
.post-card:first-child {
  position: relative;
  border: none;
  background: var(--color-accent);
  border-radius: var(--radius-md);
  overflow: hidden;
  min-height: 320px;
  display: flex;
  align-items: flex-end;
}
.post-card:first-child .post-card-image-link {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.post-card:first-child .post-card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.post-card:first-child .post-card-image-link::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(22,23,19,0.85) 0%, rgba(22,23,19,0.2) 60%, transparent 100%);
}
.post-card:first-child .post-card-content {
  position: relative;
  z-index: 1;
  padding: 24px 20px;
}
.post-card:first-child .post-card-primary-tag,
.post-card:first-child .post-card-featured { color: rgba(255,255,255,0.7); }
.post-card:first-child .post-card-title { color: #FFFFFF; font-size: 24px; }
.post-card:first-child .post-card-excerpt { color: rgba(255,255,255,0.8); }
.post-card:first-child .post-card-meta { color: rgba(255,255,255,0.6); }
.post-card:first-child .post-card-meta-date,
.post-card:first-child .post-card-meta-length { color: rgba(255,255,255,0.6); }
.post-card:first-child:hover .post-card-title { color: rgba(255,255,255,0.9); }

/* Regular cards: vertical, typography-forward */
.post-card {
  .post-card { display: flex !important; flex-direction: column !important; background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}
.post-card:hover {
  border-color: var(--color-accent-light);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px);
}
.post-card-image-link { display: block; overflow: hidden; line-height: 0; }
.post-card-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.post-card:hover .post-card-image { transform: scale(1.05); }
.post-card-content { padding: 20px; }
.post-card-content-link { text-decoration: none; color: inherit; display: block; }
.post-card-header { margin-bottom: 8px; }
.post-card-tags {
  display: flex;
  gap: 6px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.post-card-primary-tag {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.post-card-featured {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-accent);
}
.post-card-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin: 0;
  transition: color var(--transition);
}
.post-card:hover .post-card-title { color: var(--color-accent); }
.post-card-excerpt {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-top: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-card-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--color-text-meta);
}

/* ===== ARTICLE PAGE ===== */
.article { max-width: 700px; margin: 0 auto; padding: 0 16px; }
.article-header {
  padding: 32px 0 28px;
  text-align: left;
  margin-bottom: 32px;
}
.article-tag { margin-bottom: 12px; }
.article-tag a {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  text-decoration: none;
}
.article-title {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 12px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--color-accent-light);
}
.article-excerpt {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin: 0 0 24px;
}
.gh-content > h1:first-of-type { display: none; }
.gh-content {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-text-primary);
}
.gh-content h2 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 36px 0 14px;
}
.gh-content h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin: 28px 0 10px;
}
.gh-content p { margin-bottom: 16px; }
.gh-content a { color: var(--color-accent); text-decoration: underline; text-underline-offset: 2px; }
.gh-content a:hover { color: var(--color-accent-hover); }
.gh-content blockquote {
  border-left: 3px solid var(--color-accent);
  margin: 24px 0;
  font-style: italic;
  color: var(--color-text-secondary);
  background: var(--color-accent-light);
  padding: 16px 20px;
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-accent);
}
.gh-content img { border-radius: var(--radius-md); margin: 24px 0; width: 100%; }
.gh-content ul, .gh-content ol { margin: 12px 0; padding-left: 20px; }
.gh-content li { margin-bottom: 6px; }
.gh-content pre {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  overflow-x: auto;
  font-size: 13px;
}
.gh-content code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--color-accent-light);
  padding: 2px 5px;
  border-radius: var(--radius-sm);
  color: var(--color-accent);
}

.article-byline { display: flex; align-items: center; justify-content: space-between; padding-top: 14px; }
.article-byline-content { display: flex; align-items: center; gap: 10px; }
.author-list { list-style: none; margin: 0; padding: 0; display: flex; }
.author-avatar { display: block; width: 32px; height: 32px; border-radius: 50%; overflow: hidden; border: 2px solid var(--color-bg); }
.author-profile-image { width: 100%; height: 100%; object-fit: cover; }
.author-name { font-family: var(--font-body); font-size: 13px; font-weight: 600; margin: 0; }
.byline-meta-content, .byline-meta-date, .byline-reading-time { font-size: 12px; color: var(--color-text-meta); }

/* ===== FOOTER ===== */
.site-footer {
  background: var(--color-bg-footer);
  color: rgba(255,255,255,0.6);
  padding: 20px 16px;
  text-align: center;
}
.site-footer .inner { display: flex; flex-direction: column; gap: 8px; text-align: center; }
.site-footer a { color: rgba(255,255,255,0.6); text-decoration: none; font-size: 12px; }
.site-footer a:hover { color: #FFFFFF; }
.copyright { font-size: 12px; }
.site-footer-nav .nav { display: flex; list-style: none; margin: 0; padding: 0; gap: 16px; justify-content: center; }
.gh-powered-by { font-size: 12px; }
.footer-cta { background: var(--color-bg); text-align: center; padding: 36px 16px; }
.footer-cta-title { font-family: var(--font-display); font-size: 20px; font-weight: 600; margin: 0 0 16px; }
.footer-cta-button { display: inline-flex; align-items: center; background: var(--color-accent); color: #FFFFFF !important; padding: 12px 28px; border-radius: var(--radius-xl); font-family: var(--font-body); font-size: 14px; font-weight: 600; text-decoration: none; transition: all var(--transition); }

/* ===== READ MORE ===== */
.read-more-wrap { padding: 32px 16px; border-top: 1px solid var(--color-border-light); }
.read-more { display: flex; flex-direction: column; gap: 16px; }

/* ===== PAGINATION ===== */
.tag-header { text-align: center; padding: 32px 16px; }
.pagination { display: flex; justify-content: center; gap: 8px; padding: 28px 0; }

/* ===== TABLET: 640px+ ===== */
@media (min-width: 640px) {
  .outer { padding: 0 24px; }
  .gh-head { height: 64px; }
  .gh-head-inner { padding: 0 24px; }
  .gh-head-logo { font-size: 20px; }
  .gh-head-menu .nav { display: flex; }
  .gh-head-button { padding: 8px 22px; font-size: 14px; }
  
  .site-header-content { padding: 80px 24px 56px; }
  .site-title { font-size: 46px; }
  .site-description { font-size: 17px; }
  
  /* 2-column grid for regular cards */
  .post-feed {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 24px !important;
  }
  .post-card:first-child { grid-column: 1 / -1 !important; min-height: 380px !important; }
  .post-card:first-child .post-card-content { padding: 32px 28px; }
  .post-card:first-child .post-card-title { font-size: 30px; }
  .post-card-image { height: 200px; }
  .post-card-content { padding: 24px; }
  .post-card-title { font-size: 22px; }
  
  .article { padding: 0 24px; }
  .article-title { font-size: 38px; }
  .article-header { padding: 40px 0; }
  .gh-content { font-size: 17px; }
  .gh-content h2 { font-size: 26px; }
  
  .site-footer .inner { flex-direction: row; justify-content: space-between; text-align: left; }
  .footer-cta { padding: 48px 24px; }
  .read-more-wrap { padding: 40px 24px; }
  .read-more { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
}

/* ===== DESKTOP: 1024px+ ===== */
@media (min-width: 1024px) {
  .site-header-content { padding: 100px 24px 70px; }
  .site-title { font-size: 52px; }
  .site-description { font-size: 18px; }
  
  /* 3-column magazine grid */
  .post-feed {
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 28px !important;
  }
  .post-card:first-child { 
    grid-column: span 2 !important;
    grid-row: span 2 !important;
    min-height: 500px !important;
  }
  .post-card:first-child .post-card-title { font-size: 36px; }
  .post-card-image { height: 180px; }
  .post-card:nth-child(2) .post-card-image { height: 200px; }
  .post-card-title { font-size: 20px; }
  
  .article { padding: 0 24px; }
  .article-title { font-size: 44px; }
  .read-more { display: grid !important; grid-template-columns: repeat(3, 1fr) !important; gap: 28px !important; }
}

/* ===== WIDE: 1200px+ ===== */
@media (min-width: 1200px) {
  .post-card-image { height: 200px; }
  .post-card:first-child { min-height: 560px; }
}

/* ===== GHOST BURGER MENU ===== */
.gh-burger { display: flex; align-items: center; justify-content: center; background: none; border: none; cursor: pointer; color: var(--color-text-secondary); }
@media (min-width: 640px) { .gh-burger { display: none; } }