/* =========================================================================
   🌐 SINGLE ARTICLE PAGE STYLESHEET (post.css)
   ========================================================================= */

:root {
  --nv-red: #B71C1C;
  --nv-red-dark: #8B0000;
  --nv-dark: #0F172A;
  --nv-text: #1E293B;
  --nv-muted: #64748B;
  --nv-bg: #FFFFFF;
  --nv-surface: #F8FAFC;
  --nv-border: #E2E8F0;
  --nv-border-light: #F1F5F9;
  --nv-radius: 8px;
  --nv-font: 'SolaimanLipi', 'Noto Sans Bengali', -apple-system, sans-serif;
}

body {
  background-color: var(--nv-bg);
  color: var(--nv-text);
  font-family: var(--nv-font);
  line-height: 1.75;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

/* ১. রেসপন্সিভ লেআউট কন্টেইনার */
.nv-single-shell {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 16px;
  box-sizing: border-box;
}

.nv-single-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 32px;
  align-items: start;
  margin-top: 16px;
}

@media (max-width: 1024px) {
  .nv-single-grid {
    grid-template-columns: 1fr;
  }
}

/* ২. ব্রেডক্রাম্ব ও ক্যাটাগরি ব্যাজ */
.nv-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--nv-muted);
  margin: 12px 0 16px 0;
  flex-wrap: wrap;
}

.nv-breadcrumb a {
  color: var(--nv-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.nv-breadcrumb a:hover {
  color: var(--nv-red);
}

.nv-cat-badge {
  display: inline-block;
  background-color: var(--nv-red);
  color: #FFFFFF;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 12px;
}

/* ৩. শিরোনাম */
.nv-article-title {
  font-size: clamp(1.5rem, 3.5vw, 2.3rem);
  font-weight: 800;
  line-height: 1.35;
  color: var(--nv-dark);
  margin: 0 0 16px 0;
}

/* ৪. মেটা ও রিপোর্টার বার */
.nv-meta-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--nv-border);
  border-bottom: 1px solid var(--nv-border);
  padding: 12px 0;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 14px;
}

.nv-reporter-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nv-reporter-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--nv-surface);
  border: 1px solid var(--nv-border);
}

.nv-reporter-details {
  display: flex;
  flex-direction: column;
}

.nv-reporter-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--nv-dark);
  display: flex;
  align-items: center;
  gap: 6px;
}

.nv-verified-icon {
  width: 16px;
  height: 16px;
  fill: #1D9BF0;
}

.nv-reporter-role {
  font-size: 0.8rem;
  color: var(--nv-muted);
}

.nv-pub-time-box {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--nv-muted);
}

/* ৫. শেয়ার এবং সোশ্যাল বাটন */
.nv-share-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nv-share-label {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--nv-dark);
  margin-right: 4px;
}

.nv-action-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF !important;
  text-decoration: none !important;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, opacity 0.2s;
  padding: 0;
}

.nv-action-btn:hover {
  transform: scale(1.08);
  opacity: 0.92;
}

.btn-fb { background-color: #1877F2; }
.btn-wa { background-color: #25D366; }
.btn-print { background-color: #475569; }
.btn-bookmark { background-color: #F1F5F9; color: #475569 !important; }
.btn-bookmark.is-saved { background-color: #F59E0B; color: #FFFFFF !important; }
.btn-zoom { background-color: #2563EB; font-size: 0.82rem; font-weight: bold; }

/* ৬. হিরো ইমেজ ও ক্যাপশন */
.nv-post-hero-box {
  width: 100%;
  border-radius: var(--nv-radius);
  overflow: hidden;
  background: var(--nv-surface);
  margin-bottom: 24px;
}

.nv-post-hero-img {
  width: 100%;
  height: auto;
  max-height: 520px;
  object-fit: cover;
  display: block;
}

.nv-hero-caption {
  background: var(--nv-surface);
  border-left: 3px solid var(--nv-red);
  padding: 8px 14px;
  font-size: 0.85rem;
  color: var(--nv-muted);
  margin-top: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ৭. আর্টিকেল বডি */
.nv-post-excerpt {
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.6;
  color: #334155;
  margin-bottom: 20px;
  border-bottom: 1px dashed var(--nv-border);
  padding-bottom: 16px;
}

.nv-post-content {
  font-size: 1.15rem;
  line-height: 1.85;
  color: var(--nv-text);
}

.nv-post-content p {
  margin-bottom: 20px;
}

.nv-pullquote {
  background: #FFF8F8;
  border-left: 4px solid var(--nv-red);
  padding: 16px 20px;
  margin: 24px 0;
  border-radius: 0 var(--nv-radius) var(--nv-radius) 0;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--nv-dark);
}

.nv-pullquote-author {
  font-size: 0.88rem;
  font-weight: 400;
  color: var(--nv-muted);
  margin-top: 6px;
  display: block;
}

/* ৮. রিলেটেড নিউজ গ্রিড */
.nv-related-sec {
  margin-top: 40px;
  border-top: 2px solid var(--nv-dark);
  padding-top: 20px;
}

.nv-sec-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--nv-dark);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nv-related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

@media (max-width: 900px) {
  .nv-related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 576px) {
  .nv-related-grid { grid-template-columns: 1fr; }
}

.nv-rel-card {
  background: #FFFFFF;
  border: 1px solid var(--nv-border);
  border-radius: var(--nv-radius);
  overflow: hidden;
  text-decoration: none !important;
  color: inherit;
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}

.nv-rel-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

.nv-rel-thumb {
  width: 100%;
  height: 120px;
  object-fit: cover;
  background: var(--nv-surface);
}

.nv-rel-body {
  padding: 12px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.nv-rel-title {
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1.4;
  margin: 0 0 6px 0;
  color: var(--nv-dark);
}

.nv-rel-time {
  font-size: 0.75rem;
  color: var(--nv-muted);
  margin-top: auto;
}

/* ৯. ট্যাগস ও অথর বক্স */
.nv-tags-container {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 28px 0;
}

.nv-tag-chip {
  background: var(--nv-surface);
  border: 1px solid var(--nv-border);
  color: var(--nv-muted);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.82rem;
  text-decoration: none;
  transition: all 0.2s;
}

.nv-tag-chip:hover {
  background: var(--nv-red);
  color: #FFFFFF;
  border-color: var(--nv-red);
}

.nv-author-box {
  background: var(--nv-surface);
  border: 1px solid var(--nv-border);
  border-radius: var(--nv-radius);
  padding: 16px;
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 32px;
}

.nv-author-avatar-big {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
}

/* ১০. কমেন্ট সেকশন */
.nv-comment-sec {
  background: #FFFFFF;
  border: 1px solid var(--nv-border);
  border-radius: var(--nv-radius);
  padding: 20px;
  margin-bottom: 32px;
}

.nv-form-group { margin-bottom: 14px; }
.nv-form-group textarea, .nv-form-group input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--nv-border);
  border-radius: 6px;
  font-family: inherit;
  font-size: 0.92rem;
  box-sizing: border-box;
  outline: none;
}

.nv-form-group textarea:focus, .nv-form-group input:focus { border-color: var(--nv-red); }

.nv-form-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

@media (max-width: 640px) { .nv-form-row { grid-template-columns: 1fr; } }

.nv-submit-btn {
  background: var(--nv-red);
  color: #FFFFFF;
  border: none;
  padding: 10px 24px;
  border-radius: 6px;
  font-weight: 700;
  cursor: pointer;
}

.nv-side-widget {
  background: #FFFFFF;
  border: 1px solid var(--nv-border);
  border-radius: var(--nv-radius);
  padding: 16px;
  margin-bottom: 24px;
}

.nv-img-fallback {
  object-fit: contain !important;
  padding: 10px !important;
  background: var(--nv-surface) !important;
}

/* =========================================================================
   📱 ১১. ছবি অনুযায়ী ১০০% মোবাইল অ্যাপ বটম ন্যাভিগেশন (Matching image_618792.png)
   ========================================================================= */
.nv-mobile-app-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 58px;
  background: #FFFFFF;
  border-top: 1px solid #E2E8F0;
  box-shadow: 0 -3px 10px rgba(0, 0, 0, 0.06);
  z-index: 999999;
  justify-content: space-between;
  align-items: center;
  box-sizing: border-box;
  padding: 0 4px;
}

@media (max-width: 768px) {
  .nv-mobile-app-nav {
    display: flex;
  }
  body {
    padding-bottom: 60px !important;
  }
}

.nv-app-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #64748B;
  text-decoration: none !important;
  font-size: 0.72rem;
  font-weight: 700;
  flex: 1;
  height: 100%;
  gap: 3px;
  transition: color 0.2s ease;
}

.nv-app-nav-item svg {
  width: 20px !important;
  height: 20px !important;
  fill: currentColor;
  flex-shrink: 0;
  display: block;
}

/* একটিভ স্টেট (যেমন: ছবি অনুযায়ী হোম আইকনটি লাল) */
.nv-app-nav-item.active {
  color: var(--nv-red);
}

.nv-app-nav-item.active svg {
  fill: var(--nv-red);
}