/*
Theme Name: Vishal Koirala Blog
Theme URI: https://vishalkoirala.com/blog/
Author: Vishal Koirala
Description: Matches the main vishalkoirala.com site. Reuses the live site's base/components CSS, Inter font, header and footer so the blog is visually identical. Bench-style index: featured hero, category filter bar, image cards, newsletter band.
Version: 1.1
Requires at least: 6.0
Requires PHP: 8.0
License: GPL-2.0-or-later
Text Domain: vk-blog
*/

/* =====================================================================
   This file only styles WordPress-generated content. The site-wide
   look (header, footer, nav, buttons, colors, fonts) comes from the
   live stylesheets loaded in header.php:
     /css/base.css  /css/components.css  /css/pages.css
   So design tokens like --primary-blue, --text-secondary, spacing
   variables, etc. are already available here.
   ===================================================================== */

/* ---- Page scaffold ---- */
.vk-main {
  padding: var(--spacing-3xl) 0;
  background: var(--bg-white);
  min-height: 50vh;
}

.vk-page-head {
  max-width: 800px;
  margin: 0 auto var(--spacing-2xl);
  text-align: center;
}

.vk-eyebrow {
  color: var(--primary-blue);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  display: block;
}

.vk-page-head h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
}

.vk-page-head p {
  font-size: 1.125rem;
  line-height: 1.7;
  max-width: 640px;
  margin: 0 auto;
}

/* =====================================================================
   BENCH-STYLE BLOG INDEX (in site brand)
   featured hero · category filter bar · image cards · newsletter band
   ===================================================================== */

/* ---- Featured hero ---- */
.vk-featured {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  margin-bottom: var(--spacing-2xl);
}
.vk-featured-media {
  display: block;
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, rgba(26,111,164,0.14), rgba(47,133,90,0.14));
  overflow: hidden;
}
.vk-featured-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.vk-featured-body { padding: var(--spacing-2xl) var(--spacing-2xl) var(--spacing-2xl) 0; }
.vk-featured-tag {
  display: inline-block;
  color: var(--primary-blue);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-sm);
}
.vk-featured-body h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.25rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-md);
}
.vk-featured-body h2 a { color: var(--text-primary); }
.vk-featured-body h2 a:hover { color: var(--primary-blue); }
.vk-featured-excerpt { color: var(--text-secondary); font-size: 1.05rem; line-height: 1.7; margin-bottom: var(--spacing-lg); }
.vk-featured-meta { display: flex; gap: var(--spacing-md); font-size: 0.85rem; color: var(--text-secondary); margin-bottom: var(--spacing-lg); }
.vk-readlink { display: inline-flex; align-items: center; gap: 6px; font-weight: 700; color: var(--primary-blue); }
.vk-readlink:hover { gap: 10px; color: var(--primary-blue); }

@media (max-width: 860px) {
  .vk-featured { grid-template-columns: 1fr; }
  .vk-featured-body { padding: var(--spacing-xl); }
}

/* ---- Category filter bar ---- */
.vk-filterbar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
  margin: 0 auto var(--spacing-2xl);
}
.vk-chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  border-radius: var(--border-radius-pill);
  border: 1px solid var(--border-light);
  background: var(--bg-white);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.2s ease;
}
.vk-chip:hover { border-color: var(--primary-blue); color: var(--primary-blue); }
.vk-chip.is-active { background: var(--primary-blue); border-color: var(--primary-blue); color: #fff; }

/* ---- Newsletter band ---- */
.vk-news {
  margin-top: var(--spacing-3xl);
  background:
    radial-gradient(circle at top left, rgba(26,111,164,0.10), transparent 40%),
    linear-gradient(180deg, var(--bg-soft) 0%, #eef3f7 100%);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-3xl) var(--spacing-xl);
  text-align: center;
}
.vk-news h2 { font-size: 1.75rem; margin-bottom: var(--spacing-sm); }
.vk-news p { max-width: 520px; margin: 0 auto var(--spacing-lg); color: var(--text-secondary); }
.vk-news-form { display: flex; gap: var(--spacing-sm); max-width: 480px; margin: 0 auto; }
.vk-news-form input[type="email"] {
  flex: 1;
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-md);
  padding: 12px 16px;
  font-size: 1rem;
  background: #fff;
}
.vk-news-note { font-size: 0.8rem; color: var(--text-secondary); margin: var(--spacing-md) 0 0; }
.vk-news-ok { color: var(--accent-green); font-weight: 600; margin-top: var(--spacing-md); }
@media (max-width: 520px) { .vk-news-form { flex-direction: column; } }

/* ---- Card thumbnail placeholder (no featured image yet) ---- */
.vk-thumb-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  background: linear-gradient(135deg, rgba(26,111,164,0.14), rgba(47,133,90,0.12));
  color: var(--primary-blue);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ---- Blog listing grid ---- */
.vk-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
  margin: var(--spacing-xl) auto 0;
}

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

.vk-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

.vk-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 22px 55px rgba(17, 24, 39, 0.08);
}

.vk-card-thumb {
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-soft);
}

.vk-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.vk-card-body {
  padding: var(--spacing-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.vk-cat {
  display: inline-block;
  background: rgba(31, 78, 121, 0.1);
  color: var(--primary-blue);
  padding: 4px 12px;
  border-radius: var(--border-radius-pill);
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-sm);
  align-self: flex-start;
}

.vk-card-body h2 {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: var(--spacing-sm);
}

.vk-card-body h2 a { color: var(--text-primary); }
.vk-card-body h2 a:hover { color: var(--primary-blue); }

.vk-excerpt {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: var(--spacing-md);
  flex-grow: 1;
}

.vk-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(229, 231, 235, 0.85);
}

/* ---- Single post ---- */
.vk-article { max-width: 760px; margin: 0 auto; }

.vk-article-hero {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.vk-article-hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.75rem);
  letter-spacing: -0.02em;
  margin: var(--spacing-md) 0;
}

.vk-article-meta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.vk-featured {
  width: 100%;
  border-radius: var(--border-radius-xl);
  margin: 0 0 var(--spacing-2xl);
  box-shadow: var(--shadow-md);
}

/* ---- Prose / entry content ---- */
.vk-content { font-size: 1.05rem; line-height: 1.75; color: var(--text-primary); }
.vk-content > * { margin-bottom: var(--spacing-lg); }
.vk-content p { color: var(--text-primary); font-size: 1.05rem; line-height: 1.75; }
.vk-content h2 { margin-top: var(--spacing-2xl); }
.vk-content h3 { margin-top: var(--spacing-xl); }
.vk-content a { color: var(--primary-blue); text-decoration: underline; text-underline-offset: 2px; }
.vk-content a:hover { color: var(--text-primary); }
.vk-content ul, .vk-content ol { padding-left: 1.4em; }
.vk-content li { margin-bottom: var(--spacing-sm); color: var(--text-primary); }
.vk-content img { max-width: 100%; height: auto; border-radius: var(--border-radius-lg); }
.vk-content blockquote {
  border-left: 4px solid var(--primary-blue);
  background: var(--bg-soft);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius-md);
  color: var(--text-secondary);
  font-style: italic;
}
.vk-content blockquote p { color: var(--text-secondary); margin-bottom: 0; }
.vk-content code {
  background: var(--bg-soft);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-sm);
  padding: 2px 6px;
  font-size: 0.9em;
}
.vk-content pre {
  background: #0f172a;
  color: #e2e8f0;
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  overflow-x: auto;
}
.vk-content pre code { background: none; border: none; color: inherit; padding: 0; }
.vk-content table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
.vk-content th, .vk-content td {
  border: 1px solid var(--border-light);
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
}
.vk-content th { background: var(--bg-soft); font-weight: 600; color: var(--text-primary); }
.vk-content figure { margin: 0 0 var(--spacing-lg); }
.vk-content figcaption { font-size: 0.85rem; color: var(--text-secondary); text-align: center; margin-top: var(--spacing-sm); }

/* ---- Back link + post footer ---- */
.vk-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary-blue);
  margin-bottom: var(--spacing-lg);
}
.vk-post-foot {
  max-width: 760px;
  margin: var(--spacing-2xl) auto 0;
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--border-light);
}
.vk-tags a {
  display: inline-block;
  background: var(--bg-soft);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  font-size: 0.8rem;
  padding: 4px 12px;
  border-radius: var(--border-radius-pill);
  margin: 0 6px 6px 0;
}

/* ---- Pagination ---- */
.vk-pagination {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-2xl);
}
.vk-pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-md);
  color: var(--text-secondary);
  font-weight: 600;
  background: var(--bg-white);
}
.vk-pagination .page-numbers.current {
  background: var(--primary-blue);
  border-color: var(--primary-blue);
  color: #fff;
}
.vk-pagination a.page-numbers:hover {
  border-color: var(--primary-blue);
  color: var(--primary-blue);
}

/* ---- Comments ---- */
.vk-comments { max-width: 760px; margin: var(--spacing-2xl) auto 0; }
.vk-comments h3 { margin-bottom: var(--spacing-lg); }
.vk-comments .comment-list { list-style: none; padding: 0; }
.vk-comments .comment-body {
  background: var(--bg-soft);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}
.vk-comments input[type="text"],
.vk-comments input[type="email"],
.vk-comments input[type="url"],
.vk-comments textarea {
  width: 100%;
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-md);
  padding: 10px 14px;
  font-family: inherit;
  font-size: 1rem;
  margin-bottom: var(--spacing-md);
}

/* ---- Empty / search states ---- */
.vk-empty { text-align: center; max-width: 560px; margin: var(--spacing-2xl) auto; }
.vk-searchform { display: flex; gap: var(--spacing-sm); max-width: 460px; margin: var(--spacing-lg) auto 0; }
.vk-searchform input[type="search"] {
  flex: 1;
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-md);
  padding: 10px 14px;
  font-size: 1rem;
}