/*
Theme Name: NetrivoBD Portal Theme
Theme URI: https://netrivobd.com/themes/netrivobd-portal
Author: NetrivoBD Architecture Team
Author URI: https://netrivobd.com
Description: An original, high-performance, responsive WordPress theme designed for News Portals, Online Magazines, Editorial Publications, and Multipurpose Blogs.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 7.1
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: netrivobd-portal
Tags: news, magazine, blog, one-column, two-columns, three-columns, right-sidebar, custom-background, custom-colors, custom-logo, custom-menu, featured-images, footer-widgets, rtl-language-support, threaded-comments, translation-ready, wide-blocks
*/

/* ==========================================================================
   1. Design System Tokens (CSS Variables)
   ========================================================================== */
:root {
  /* Color Palette - Light Mode (Default) */
  --nbd-primary: #e11d48;         /* Vibrant editorial crimson */
  --nbd-primary-hover: #be123c;
  --nbd-primary-subtle: #ffe4e6;
  --nbd-secondary: #0284c7;       /* Tech & business sky blue */
  --nbd-accent: #f59e0b;          /* Highlights & breaking amber */
  
  --nbd-bg-body: #f8fafc;
  --nbd-bg-surface: #ffffff;
  --nbd-bg-subtle: #f1f5f9;
  --nbd-bg-header: #ffffff;
  --nbd-bg-footer: #0f172a;
  
  --nbd-text-main: #0f172a;
  --nbd-text-body: #334155;
  --nbd-text-muted: #64748b;
  --nbd-text-inverse: #ffffff;
  
  --nbd-border-color: #e2e8f0;
  --nbd-border-subtle: #f1f5f9;
  --nbd-border-dark: #cbd5e1;
  
  /* Typography */
  --nbd-font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --nbd-font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --nbd-font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  
  /* Layout Dimensions */
  --nbd-container-width: 1240px;
  --nbd-content-width: 820px;
  --nbd-sidebar-width: 360px;
  --nbd-grid-gap: 2rem;
  
  /* Borders & Shadows */
  --nbd-radius-sm: 4px;
  --nbd-radius-md: 8px;
  --nbd-radius-lg: 12px;
  --nbd-radius-full: 9999px;
  
  --nbd-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --nbd-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --nbd-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --nbd-transition-fast: 0.15s ease-in-out;
  --nbd-transition-normal: 0.25s ease-in-out;
}

/* Dark Mode Tokens */
[data-theme="dark"] {
  --nbd-bg-body: #0b0f19;
  --nbd-bg-surface: #131b2e;
  --nbd-bg-subtle: #1e293b;
  --nbd-bg-header: #131b2e;
  --nbd-bg-footer: #080c14;
  
  --nbd-text-main: #f8fafc;
  --nbd-text-body: #cbd5e1;
  --nbd-text-muted: #94a3b8;
  
  --nbd-border-color: #1e293b;
  --nbd-border-subtle: #162032;
  --nbd-border-dark: #334155;
  
  --nbd-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --nbd-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
}

/* ==========================================================================
   2. Modern Reset & Base Typography
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  line-height: 1.6;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--nbd-font-sans);
  font-size: 1rem;
  color: var(--nbd-text-body);
  background-color: var(--nbd-bg-body);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.screen-reader-text {
  border: 0;
  clip: rect(1px, 1px, 1px, 1px);
  clip-path: inset(50%);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute !important;
  width: 1px;
  word-wrap: normal !important;
}

.screen-reader-text:focus {
  background-color: var(--nbd-primary);
  border-radius: var(--nbd-radius-sm);
  clip: auto !important;
  clip-path: none;
  color: var(--nbd-text-inverse);
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  height: auto;
  left: 1rem;
  line-height: normal;
  padding: 0.75rem 1.25rem;
  position: fixed !important;
  top: 1rem;
  text-decoration: none;
  width: auto;
  z-index: 100000;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--nbd-font-heading);
  color: var(--nbd-text-main);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

h1 { font-size: 2.25rem; letter-spacing: -0.025em; }
h2 { font-size: 1.75rem; letter-spacing: -0.02em; }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.15rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; text-transform: uppercase; letter-spacing: 0.05em; }

p { margin-bottom: 1.25rem; }

a {
  color: var(--nbd-primary);
  text-decoration: none;
  transition: color var(--nbd-transition-fast);
}

a:hover { color: var(--nbd-primary-hover); }

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Helpers */
.text-muted { color: var(--nbd-text-muted) !important; }
.text-center { text-align: center !important; }
.mb-2 { margin-bottom: 0.5rem !important; }
.mb-3 { margin-bottom: 0.75rem !important; }
.mb-4 { margin-bottom: 1.5rem !important; }
.mb-5 { margin-bottom: 2.5rem !important; }
.mt-1 { margin-top: 0.25rem !important; }
.mt-2 { margin-top: 0.5rem !important; }
.mt-3 { margin-top: 0.75rem !important; }
.mt-4 { margin-top: 1.5rem !important; }
.my-4 { margin-top: 1.5rem !important; margin-bottom: 1.5rem !important; }
.py-5 { padding-top: 3rem !important; padding-bottom: 3rem !important; }
.mx-auto { margin-left: auto !important; margin-right: auto !important; }
.max-w-500 { max-width: 500px !important; }
.max-w-600 { max-width: 600px !important; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.25rem;
  font-size: 0.925rem;
  font-weight: 600;
  border-radius: var(--nbd-radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--nbd-transition-normal);
  text-decoration: none;
  font-family: inherit;
}

.nbd-btn-primary {
  background-color: var(--nbd-primary);
  color: #ffffff;
}

.nbd-btn-primary:hover {
  background-color: var(--nbd-primary-hover);
  color: #ffffff;
}

/* ==========================================================================
   3. Containers & Layout Grids
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--nbd-container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

#page.site {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

#content.site-content {
  flex: 1;
  padding: 2.5rem 0;
}

.site-layout-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--nbd-grid-gap);
}

@media (min-width: 1024px) {
  .site-layout-grid.has-sidebar {
    grid-template-columns: minmax(0, 1fr) var(--nbd-sidebar-width);
  }
}

/* ==========================================================================
   4. Header & Navigation Styling
   ========================================================================== */
.top-bar-area {
  background-color: var(--nbd-bg-subtle);
  border-bottom: 1px solid var(--nbd-border-color);
  font-size: 0.825rem;
  color: var(--nbd-text-muted);
  padding: 0.4rem 0;
}

.top-bar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar-menu {
  display: flex;
  list-style: none;
  gap: 1.25rem;
  margin: 0;
}

.top-bar-menu a {
  color: var(--nbd-text-muted);
}

.top-bar-menu a:hover {
  color: var(--nbd-primary);
}

.site-header {
  background-color: var(--nbd-bg-header);
  border-bottom: 1px solid var(--nbd-border-color);
}

.header-main-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
}

.site-branding .site-title {
  font-size: 1.85rem;
  font-weight: 800;
  margin: 0;
  letter-spacing: -0.03em;
}

.site-branding .site-title a {
  color: var(--nbd-text-main);
}

.site-branding .site-description {
  font-size: 0.875rem;
  color: var(--nbd-text-muted);
  margin: 0.25rem 0 0;
}

.primary-nav-wrapper {
  background-color: var(--nbd-bg-surface);
  border-top: 1px solid var(--nbd-border-subtle);
  border-bottom: 2px solid var(--nbd-primary);
}

.main-navigation {
  display: flex;
  align-items: center;
  position: relative;
}

.primary-nav-menu {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 1.75rem;
}

@media (min-width: 768px) {
  .primary-nav-menu {
    display: flex;
    align-items: center;
  }
}

.primary-nav-menu a {
  color: var(--nbd-text-main);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 1rem 0.25rem;
  display: inline-block;
  transition: color var(--nbd-transition-fast);
}

.primary-nav-menu a:hover,
.primary-nav-menu .current-menu-item > a {
  color: var(--nbd-primary);
}

/* Mobile Toggle */
.menu-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 0;
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-weight: 600;
  color: var(--nbd-text-main);
}

@media (min-width: 768px) {
  .menu-toggle { display: none; }
}

.hamburger-box {
  width: 24px;
  height: 18px;
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
}

.hamburger-box span,
.hamburger-box::before,
.hamburger-box::after {
  content: '';
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--nbd-text-main);
  border-radius: 2px;
}

.primary-nav-menu-container.is-active .primary-nav-menu {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--nbd-bg-surface);
  border: 1px solid var(--nbd-border-color);
  box-shadow: var(--nbd-shadow-lg);
  padding: 1rem 1.5rem;
  z-index: 999;
}

/* ==========================================================================
   5. Post Cards & Blog Layout Grids (Phase 1 Core)
   ========================================================================== */
.nbd-blog-grid {
  display: grid;
  gap: 1.75rem;
}

.grid-cols-1 { grid-template-columns: 1fr; }
.grid-cols-2 { grid-template-columns: 1fr; }
.grid-cols-3 { grid-template-columns: 1fr; }
.grid-cols-4 { grid-template-columns: 1fr; }

@media (min-width: 640px) {
  .grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-cols-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Base Card */
.nbd-card {
  background-color: var(--nbd-bg-surface);
  border: 1px solid var(--nbd-border-color);
  border-radius: var(--nbd-radius-md);
  overflow: hidden;
  box-shadow: var(--nbd-shadow-sm);
  transition: transform var(--nbd-transition-normal), box-shadow var(--nbd-transition-normal);
  display: flex;
  flex-direction: column;
}

.nbd-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--nbd-shadow-md);
  border-color: var(--nbd-border-dark);
}

.nbd-card-media {
  position: relative;
  overflow: hidden;
  background-color: var(--nbd-bg-subtle);
  aspect-ratio: 16 / 10;
}

.card-thumbnail-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.nbd-card:hover .card-thumbnail-wrapper img {
  transform: scale(1.04);
}

.nbd-card-category-overlay {
  position: absolute;
  bottom: 0.75rem;
  left: 0.75rem;
  z-index: 2;
}

.category-badge {
  display: inline-block;
  background-color: var(--nbd-primary);
  color: #ffffff;
  font-size: 0.725rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.6rem;
  border-radius: var(--nbd-radius-sm);
}

.category-badge:hover {
  background-color: var(--nbd-primary-hover);
  color: #ffffff;
}

.nbd-card-body {
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.nbd-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 0.6rem;
}

.nbd-card-title a {
  color: var(--nbd-text-main);
}

.nbd-card-title a:hover {
  color: var(--nbd-primary);
}

.nbd-card-meta,
.entry-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--nbd-text-muted);
  margin-bottom: 0.85rem;
}

.meta-separator {
  color: var(--nbd-border-dark);
  font-size: 0.75rem;
}

.meta-icon {
  display: inline-block;
  vertical-align: -2px;
  stroke: var(--nbd-text-muted);
}

.author-mini-avatar {
  border-radius: var(--nbd-radius-full);
  display: inline-block;
  vertical-align: middle;
  margin-right: 0.25rem;
}

.nbd-card-excerpt {
  font-size: 0.925rem;
  color: var(--nbd-text-body);
  margin-bottom: 1.25rem;
  flex: 1;
}

.nbd-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--nbd-border-subtle);
  padding-top: 0.85rem;
  font-size: 0.8rem;
  color: var(--nbd-text-muted);
}

.nbd-card-footer-stats {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nbd-read-more-link {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--nbd-primary);
}

/* List Card Layout */
.nbd-card-list {
  display: grid;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .nbd-card-list {
    grid-template-columns: 240px 1fr;
  }
}

.nbd-card-top-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.6rem;
  font-size: 0.8rem;
}

/* Classic Card Layout */
.nbd-card-classic {
  margin-bottom: 2.5rem;
}

.nbd-card-classic .nbd-card-media {
  aspect-ratio: 16 / 9;
}

.nbd-card-classic .nbd-card-title {
  font-size: 1.75rem;
  margin-top: 0.5rem;
}

/* ==========================================================================
   6. Single Post Experience
   ========================================================================== */
.single-post-article,
.page-article {
  background-color: var(--nbd-bg-surface);
  border: 1px solid var(--nbd-border-color);
  border-radius: var(--nbd-radius-md);
  padding: 1.75rem;
  box-shadow: var(--nbd-shadow-sm);
}

@media (min-width: 768px) {
  .single-post-article,
  .page-article {
    padding: 2.75rem;
  }
}

.single-post-article .entry-title {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
}

.single-entry-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--nbd-border-subtle);
  margin-bottom: 1.5rem;
}

.entry-featured-image {
  border-radius: var(--nbd-radius-md);
  overflow: hidden;
  margin: 1.75rem 0;
}

.featured-image-caption {
  font-size: 0.825rem;
  color: var(--nbd-text-muted);
  text-align: center;
  padding: 0.5rem;
  background-color: var(--nbd-bg-subtle);
}

/* Rich Editorial Content Typography */
.entry-content {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--nbd-text-body);
}

.entry-content p { margin-bottom: 1.5rem; }
.entry-content h2 { font-size: 1.8rem; margin-top: 2.5rem; margin-bottom: 1rem; }
.entry-content h3 { font-size: 1.45rem; margin-top: 2rem; margin-bottom: 0.75rem; }

.entry-content blockquote {
  border-left: 4px solid var(--nbd-primary);
  background-color: var(--nbd-bg-subtle);
  padding: 1.25rem 1.75rem;
  font-style: italic;
  color: var(--nbd-text-main);
  margin: 2rem 0;
  border-radius: 0 var(--nbd-radius-sm) var(--nbd-radius-sm) 0;
}

.entry-content ul,
.entry-content ol {
  margin: 1.5rem 0;
  padding-left: 1.75rem;
}

.entry-content li { margin-bottom: 0.5rem; }

/* Tag Pills */
.entry-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--nbd-border-subtle);
}

.tags-title {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--nbd-text-main);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.entry-tags a {
  background-color: var(--nbd-bg-subtle);
  color: var(--nbd-text-body);
  padding: 0.3rem 0.75rem;
  border-radius: var(--nbd-radius-full);
  font-size: 0.825rem;
  font-weight: 500;
  border: 1px solid var(--nbd-border-color);
}

.entry-tags a:hover {
  background-color: var(--nbd-primary);
  color: #ffffff;
  border-color: var(--nbd-primary);
}

/* Social Share Bar */
.netrivobd-share-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.share-label {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--nbd-text-main);
  margin-right: 0.25rem;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--nbd-radius-sm);
  color: #ffffff !important;
  border: none;
  cursor: pointer;
  transition: opacity var(--nbd-transition-fast);
}

.share-btn:hover { opacity: 0.88; }
.share-x { background-color: #000000; }
.share-fb { background-color: #1877f2; }
.share-linkedin { background-color: #0a66c2; }
.share-copy-link {
  background-color: var(--nbd-text-muted);
  color: #ffffff;
}

/* Author Box */
.netrivobd-author-box {
  background-color: var(--nbd-bg-surface);
  border: 1px solid var(--nbd-border-color);
  border-radius: var(--nbd-radius-md);
  padding: 2rem;
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .netrivobd-author-box {
    flex-direction: row;
    align-items: flex-start;
  }
}

.author-avatar-img {
  border-radius: var(--nbd-radius-full);
}

.author-box-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--nbd-primary);
  letter-spacing: 0.05em;
}

.author-box-name {
  font-size: 1.35rem;
  margin-top: 0.2rem;
  margin-bottom: 0.6rem;
}

.author-box-name a { color: var(--nbd-text-main); }
.author-box-bio { font-size: 0.95rem; color: var(--nbd-text-body); margin-bottom: 1rem; }

.author-box-footer {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.85rem;
  font-weight: 600;
}

/* Post Navigation (Prev/Next) */
.netrivobd-post-navigation {
  margin-top: 2rem;
}

.netrivobd-post-navigation .nav-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 640px) {
  .netrivobd-post-navigation .nav-links {
    grid-template-columns: 1fr 1fr;
  }
}

.netrivobd-post-navigation a {
  background-color: var(--nbd-bg-surface);
  border: 1px solid var(--nbd-border-color);
  border-radius: var(--nbd-radius-md);
  padding: 1.25rem;
  display: block;
  transition: var(--nbd-transition-normal);
}

.netrivobd-post-navigation a:hover {
  border-color: var(--nbd-primary);
  box-shadow: var(--nbd-shadow-sm);
}

.nav-subtitle {
  display: block;
  font-size: 0.775rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--nbd-text-muted);
  margin-bottom: 0.35rem;
}

.nav-title {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--nbd-text-main);
  line-height: 1.3;
}

/* ==========================================================================
   7. Comments System
   ========================================================================== */
.comments-area {
  margin-top: 3rem;
  background-color: var(--nbd-bg-surface);
  border: 1px solid var(--nbd-border-color);
  border-radius: var(--nbd-radius-md);
  padding: 2rem;
}

.comments-title {
  font-size: 1.45rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--nbd-border-subtle);
  margin-bottom: 2rem;
}

.comment-list {
  list-style: none;
  padding: 0;
  margin-bottom: 2rem;
}

.comment-body {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--nbd-border-subtle);
}

.comment-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.comment-author .avatar {
  border-radius: var(--nbd-radius-full);
  display: inline-block;
  vertical-align: middle;
  margin-right: 0.5rem;
}

.comment-author .fn {
  font-size: 1rem;
  color: var(--nbd-text-main);
}

.author-badge {
  background-color: var(--nbd-primary);
  color: #ffffff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: var(--nbd-radius-full);
  margin-left: 0.4rem;
}

.comment-metadata a {
  font-size: 0.8rem;
  color: var(--nbd-text-muted);
}

.comment-content {
  font-size: 0.975rem;
  line-height: 1.65;
  color: var(--nbd-text-body);
}

.comment-reply-link {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--nbd-primary);
}

.comment-list .children {
  list-style: none;
  padding-left: 2rem;
  border-left: 2px solid var(--nbd-border-subtle);
}

/* Comment Form */
#respond {
  margin-top: 2.5rem;
}

.comment-reply-title {
  font-size: 1.35rem;
  margin-bottom: 1.25rem;
}

.comment-form p { margin-bottom: 1rem; }
.comment-form label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--nbd-text-main);
}

.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea,
.search-form input[type="search"] {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--nbd-border-color);
  border-radius: var(--nbd-radius-sm);
  background-color: var(--nbd-bg-surface);
  color: var(--nbd-text-body);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--nbd-transition-fast);
}

.comment-form input:focus,
.comment-form textarea:focus,
.search-form input[type="search"]:focus {
  outline: none;
  border-color: var(--nbd-primary);
  box-shadow: 0 0 0 3px var(--nbd-primary-subtle);
}

/* ==========================================================================
   8. Pagination
   ========================================================================== */
.pagination {
  margin-top: 3rem;
  display: flex;
  justify-content: center;
}

.pagination .nav-links {
  display: flex;
  gap: 0.4rem;
  align-items: center;
  flex-wrap: wrap;
}

.pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 42px;
  padding: 0 0.85rem;
  border-radius: var(--nbd-radius-sm);
  border: 1px solid var(--nbd-border-color);
  background-color: var(--nbd-bg-surface);
  color: var(--nbd-text-main);
  font-weight: 600;
  font-size: 0.9rem;
}

.pagination .page-numbers.current {
  background-color: var(--nbd-primary);
  color: #ffffff;
  border-color: var(--nbd-primary);
}

.pagination .page-numbers:hover:not(.current) {
  background-color: var(--nbd-bg-subtle);
  border-color: var(--nbd-border-dark);
}

/* ==========================================================================
   9. Sidebar & Widgets
   ========================================================================== */
.main-sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.widget {
  background-color: var(--nbd-bg-surface);
  border: 1px solid var(--nbd-border-color);
  border-radius: var(--nbd-radius-md);
  padding: 1.5rem;
  box-shadow: var(--nbd-shadow-sm);
}

.widget-title {
  font-size: 1.1rem;
  font-weight: 700;
  border-bottom: 2px solid var(--nbd-primary-subtle);
  padding-bottom: 0.5rem;
  margin-bottom: 1.25rem;
  position: relative;
}

.widget-title::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 35px;
  height: 2px;
  background-color: var(--nbd-primary);
}

.widget ul { list-style: none; padding: 0; margin: 0; }
.widget li {
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--nbd-border-subtle);
  font-size: 0.925rem;
}

.widget li:last-child { border-bottom: none; }
.widget a { color: var(--nbd-text-body); }
.widget a:hover { color: var(--nbd-primary); }

/* ==========================================================================
   10. Author, Category & Archive Headers
   ========================================================================== */
.author-page-header .author-header-card {
  background-color: var(--nbd-bg-surface);
  border: 1px solid var(--nbd-border-color);
  border-radius: var(--nbd-radius-md);
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  box-shadow: var(--nbd-shadow-sm);
}

@media (min-width: 640px) {
  .author-page-header .author-header-card {
    flex-direction: row;
    align-items: center;
  }
}

.author-main-avatar {
  border-radius: var(--nbd-radius-full);
}

.author-role-badge {
  background-color: var(--nbd-primary);
  color: #ffffff;
  font-size: 0.725rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: var(--nbd-radius-sm);
  margin-right: 0.5rem;
}

.author-posts-count {
  font-size: 0.85rem;
  color: var(--nbd-text-muted);
}

.author-bio-text {
  font-size: 1rem;
  color: var(--nbd-text-body);
}

.category-header-badge,
.tag-header-badge {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.category-pill,
.tag-pill {
  background-color: var(--nbd-primary);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.25rem 0.75rem;
  border-radius: var(--nbd-radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.category-count {
  font-size: 0.875rem;
  color: var(--nbd-text-muted);
}

/* 404 Error */
.error-404-badge {
  font-size: 6rem;
  font-weight: 900;
  color: var(--nbd-primary);
  line-height: 1;
  letter-spacing: -0.05em;
}

/* ==========================================================================
   11. Footer System
   ========================================================================== */
.site-footer {
  background-color: var(--nbd-bg-footer);
  color: #94a3b8;
  margin-top: auto;
}

.footer-widgets-area {
  padding: 4rem 0 3rem;
  border-bottom: 1px solid #1e293b;
}

.footer-widgets-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 640px) {
  .footer-widgets-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .footer-widgets-grid { grid-template-columns: repeat(4, 1fr); }
}

.footer-widget .widget-title {
  color: #f8fafc;
  border-bottom-color: #334155;
}

.footer-widget a { color: #94a3b8; }
.footer-widget a:hover { color: #ffffff; }

.site-info-bar {
  padding: 1.75rem 0;
  font-size: 0.875rem;
}

.site-info-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

@media (min-width: 768px) {
  .site-info-container { flex-direction: row; }
}

.footer-menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1.5rem;
}

.footer-menu a { color: #94a3b8; }
.footer-menu a:hover { color: #ffffff; }

/* ==========================================================================
   12. News Portal & Magazine System (Phase 2 Core)
   ========================================================================== */
/* Section Headings with Accent Bar */
.nbd-section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px solid var(--nbd-border-color);
  padding-bottom: 0.65rem;
  margin-bottom: 1.75rem;
  position: relative;
}

.heading-title-group {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  position: relative;
}

.heading-accent-bar {
  display: inline-block;
  width: 4px;
  height: 22px;
  background-color: var(--nbd-primary);
  border-radius: var(--nbd-radius-full);
}

.nbd-section-heading .section-title {
  font-size: 1.35rem;
  font-weight: 800;
  margin: 0;
  letter-spacing: -0.02em;
}

.heading-line {
  flex: 1;
  height: 2px;
  background-color: var(--nbd-border-color);
  margin-left: 1rem;
}

.view-all-link {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--nbd-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* 12.1 Breaking News Ticker */
.nbd-breaking-news-bar {
  background-color: var(--nbd-bg-surface);
  border-bottom: 1px solid var(--nbd-border-color);
  padding: 0.6rem 0;
  box-shadow: var(--nbd-shadow-sm);
  margin-bottom: 2rem;
}

.nbd-breaking-inner {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nbd-breaking-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--nbd-primary);
  color: #ffffff;
  padding: 0.35rem 0.85rem;
  border-radius: var(--nbd-radius-sm);
  font-size: 0.775rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.pulse-indicator {
  width: 8px;
  height: 8px;
  background-color: #ffffff;
  border-radius: var(--nbd-radius-full);
  display: inline-block;
  box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.7);
  animation: nbd-pulse 1.8s infinite;
}

@keyframes nbd-pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(255, 255, 255, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(255, 255, 255, 0); }
}

.nbd-ticker-wrapper {
  flex: 1;
  overflow: hidden;
  position: relative;
  height: 24px;
}

.nbd-ticker-items {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.nbd-ticker-item {
  display: none;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 0.925rem;
}

.nbd-ticker-item.is-active {
  display: flex;
}

.ticker-title {
  color: var(--nbd-text-main);
  font-weight: 600;
}

.ticker-title:hover {
  color: var(--nbd-primary);
}

.ticker-time {
  font-size: 0.8rem;
  color: var(--nbd-text-muted);
}

.nbd-ticker-controls {
  display: flex;
  gap: 0.35rem;
}

.ticker-prev-btn,
.ticker-next-btn {
  background-color: var(--nbd-bg-subtle);
  border: 1px solid var(--nbd-border-color);
  border-radius: var(--nbd-radius-sm);
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--nbd-text-main);
  font-size: 0.8rem;
  transition: var(--nbd-transition-fast);
}

.ticker-prev-btn:hover,
.ticker-next-btn:hover {
  background-color: var(--nbd-primary);
  color: #ffffff;
  border-color: var(--nbd-primary);
}

/* 12.2 Magazine Hero 5-Story Grid */
.nbd-magazine-hero-section {
  margin-bottom: 2.5rem;
}

.nbd-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 1024px) {
  .nbd-hero-grid {
    grid-template-columns: 1.25fr 1fr;
    min-height: 480px;
  }
}

.nbd-hero-lead {
  display: flex;
}

.nbd-hero-lead .nbd-card-overlay {
  flex: 1;
  min-height: 340px;
}

@media (min-width: 1024px) {
  .nbd-hero-lead .nbd-card-overlay {
    min-height: 480px;
  }
}

.nbd-hero-sub-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .nbd-hero-sub-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 12.3 Overlay Card Component */
.nbd-card-overlay {
  position: relative;
  overflow: hidden;
  border-radius: var(--nbd-radius-md);
  box-shadow: var(--nbd-shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background-color: #0f172a;
}

.nbd-card-overlay .nbd-card-overlay-media {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.nbd-card-overlay .card-thumbnail-wrapper {
  width: 100%;
  height: 100%;
}

.nbd-card-overlay .card-thumbnail-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.nbd-card-overlay:hover .card-thumbnail-wrapper img {
  transform: scale(1.06);
}

.nbd-card-scrim {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.92) 0%, rgba(15, 23, 42, 0.4) 55%, transparent 100%);
  pointer-events: none;
}

.nbd-card-overlay-content {
  position: relative;
  z-index: 2;
  padding: 1.5rem;
}

.nbd-hero-lead .nbd-card-overlay-content {
  padding: 2.25rem;
}

.nbd-hero-lead .nbd-card-title {
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.25;
}

@media (min-width: 768px) {
  .nbd-hero-lead .nbd-card-title {
    font-size: 2rem;
  }
}

.nbd-card-overlay .nbd-card-title a {
  color: #ffffff;
}

.nbd-card-overlay .nbd-card-title a:hover {
  color: var(--nbd-primary-subtle);
}

.text-white-subtle,
.text-white-subtle a,
.text-white-subtle .meta-icon {
  color: rgba(255, 255, 255, 0.82) !important;
  stroke: rgba(255, 255, 255, 0.82) !important;
}

/* 12.4 Trending Stories Section */
.nbd-trending-section {
  margin-bottom: 3rem;
}

.nbd-trending-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .nbd-trending-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .nbd-trending-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Mini Card with Rank Badge */
.nbd-card-mini {
  display: flex;
  align-items: center;
  gap: 1rem;
  background-color: var(--nbd-bg-surface);
  border: 1px solid var(--nbd-border-color);
  border-radius: var(--nbd-radius-md);
  padding: 0.85rem;
  position: relative;
  transition: transform var(--nbd-transition-fast), border-color var(--nbd-transition-fast);
}

.nbd-card-mini:hover {
  transform: translateY(-2px);
  border-color: var(--nbd-primary);
}

.nbd-rank-badge {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--nbd-primary);
  font-family: var(--nbd-font-heading);
  min-width: 24px;
  line-height: 1;
}

.nbd-mini-thumb {
  width: 72px;
  height: 72px;
  flex-shrink: 0;
  border-radius: var(--nbd-radius-sm);
  overflow: hidden;
  background-color: var(--nbd-bg-subtle);
}

.nbd-mini-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.nbd-mini-content {
  flex: 1;
  min-width: 0;
}

.nbd-mini-title {
  font-size: 0.925rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 0.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.nbd-mini-title a {
  color: var(--nbd-text-main);
}

.nbd-mini-title a:hover {
  color: var(--nbd-primary);
}

.nbd-mini-meta {
  font-size: 0.775rem;
  color: var(--nbd-text-muted);
}

/* 12.5 Category News Block */
.nbd-category-news-block {
  margin-bottom: 3rem;
}

.nbd-category-block-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .nbd-category-block-grid {
    grid-template-columns: 1.15fr 1fr;
  }
}

.cat-block-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

/* 12.6 Video News Section */
.nbd-video-section {
  margin: 3.5rem 0;
}

.video-section-wrapper {
  background-color: #0f172a;
  border-radius: var(--nbd-radius-lg);
  padding: 2.25rem;
  box-shadow: var(--nbd-shadow-lg);
}

.heading-dark-mode {
  border-bottom-color: #1e293b;
}

.text-white {
  color: #ffffff !important;
}

.text-muted-light {
  color: #94a3b8;
  font-size: 0.85rem;
}

.nbd-video-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 992px) {
  .nbd-video-grid {
    grid-template-columns: 1.4fr 1fr;
  }
}

.video-play-button-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  transition: transform 0.3s ease;
}

.video-card-large:hover .video-play-button-center {
  transform: translate(-50%, -50%) scale(1.15);
}

.video-sub-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.video-sub-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  background-color: #1e293b;
  border-radius: var(--nbd-radius-md);
  padding: 0.75rem;
  transition: background-color var(--nbd-transition-fast);
}

.video-sub-item:hover {
  background-color: #28364d;
}

.video-sub-thumb {
  position: relative;
  width: 80px;
  height: 60px;
  border-radius: var(--nbd-radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}

.video-sub-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-mini-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(225, 29, 72, 0.85);
  border-radius: var(--nbd-radius-full);
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-sub-title {
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 0.25rem;
}

.video-sub-title a {
  color: #f8fafc;
}

.video-sub-title a:hover {
  color: var(--nbd-primary);
}

.video-sub-date {
  font-size: 0.75rem;
  color: #94a3b8;
}

/* 12.7 Newsletter Section Banner */
.nbd-newsletter-section {
  margin: 3.5rem 0;
}

.newsletter-card {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  border-radius: var(--nbd-radius-lg);
  padding: 3rem 2rem;
  color: #ffffff;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
  box-shadow: var(--nbd-shadow-lg);
}

@media (min-width: 992px) {
  .newsletter-card {
    grid-template-columns: 1.2fr 1fr;
    padding: 3.5rem;
  }
}

.newsletter-icon-circle {
  width: 52px;
  height: 52px;
  background-color: var(--nbd-primary);
  border-radius: var(--nbd-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.newsletter-title {
  color: #ffffff;
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 0.5rem;
}

.newsletter-subtitle {
  color: #94a3b8;
  font-size: 0.95rem;
  margin: 0;
}

.newsletter-form .input-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

@media (min-width: 640px) {
  .newsletter-form .input-group {
    flex-direction: row;
  }
}

.newsletter-form input[type="email"] {
  flex: 1;
  padding: 0.85rem 1.25rem;
  border-radius: var(--nbd-radius-sm);
  border: 1px solid #334155;
  background-color: #0f172a;
  color: #ffffff;
  font-family: inherit;
  font-size: 0.95rem;
}

.newsletter-form input[type="email"]:focus {
  outline: none;
  border-color: var(--nbd-primary);
}

.newsletter-disclaimer {
  font-size: 0.775rem;
  color: #94a3b8;
  margin-top: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

/* ==========================================================================
   13. Header & Navigation System (Phase 3 Core)
   ========================================================================== */
/* 13.1 Top Bar Components */
.top-bar-left,
.top-bar-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.top-bar-date {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.top-bar-socials {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.social-icon-link {
  color: var(--nbd-text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: color var(--nbd-transition-fast), transform var(--nbd-transition-fast);
}

.social-icon-link:hover {
  color: var(--nbd-primary);
  transform: translateY(-1px);
}

.top-bar-auth a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--nbd-text-main);
  font-weight: 600;
  font-size: 0.825rem;
}

.top-bar-auth a:hover {
  color: var(--nbd-primary);
}

/* 13.2 Header Actions & Theme Toggle */
.nbd-header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-left: auto;
}

.nbd-action-btn {
  background-color: var(--nbd-bg-subtle);
  border: 1px solid var(--nbd-border-color);
  border-radius: var(--nbd-radius-full);
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--nbd-text-main);
  transition: var(--nbd-transition-fast);
}

.nbd-action-btn:hover {
  background-color: var(--nbd-primary);
  color: #ffffff;
  border-color: var(--nbd-primary);
}

/* Dark Mode Icon Switching */
.theme-icon-sun {
  display: none;
}

.theme-icon-moon {
  display: block;
}

[data-theme="dark"] .theme-icon-sun {
  display: block;
}

[data-theme="dark"] .theme-icon-moon {
  display: none;
}

/* 13.3 Sticky Navigation */
.primary-nav-wrapper {
  transition: all 0.3s ease;
}

.primary-nav-wrapper.is-sticky {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  box-shadow: var(--nbd-shadow-md);
  animation: nbd-slide-down 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes nbd-slide-down {
  from { transform: translateY(-100%); }
  to { transform: translateY(0); }
}

/* 13.4 Primary Menu Dropdown Navigation */
.primary-nav-menu li {
  position: relative;
}

.primary-nav-menu .menu-item-has-children > a::after {
  content: '';
  display: inline-block;
  margin-left: 0.4rem;
  vertical-align: 2px;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
}

.primary-nav-menu .sub-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background-color: var(--nbd-bg-surface);
  border: 1px solid var(--nbd-border-color);
  border-top: 2px solid var(--nbd-primary);
  border-radius: 0 0 var(--nbd-radius-sm) var(--nbd-radius-sm);
  box-shadow: var(--nbd-shadow-lg);
  list-style: none;
  margin: 0;
  padding: 0.5rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  z-index: 999;
}

.primary-nav-menu li:hover > .sub-menu,
.primary-nav-menu li:focus-within > .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.primary-nav-menu .sub-menu a {
  display: block;
  padding: 0.6rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--nbd-text-body);
  border-bottom: 1px solid var(--nbd-border-subtle);
}

.primary-nav-menu .sub-menu li:last-child a {
  border-bottom: none;
}

.primary-nav-menu .sub-menu a:hover {
  background-color: var(--nbd-bg-subtle);
  color: var(--nbd-primary);
  padding-left: 1.5rem;
}

/* 13.5 Centered & Inline Header Variations */
.nav-centered-container {
  display: flex;
  justify-content: center;
}

.nav-menu-centered {
  justify-content: center;
}

.header-inline-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.header-inline-left,
.header-inline-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-cta-btn {
  display: none;
}

@media (min-width: 992px) {
  .header-cta-btn {
    display: inline-flex;
  }
}

/* 13.6 Fullscreen Search Modal Overlay */
.nbd-search-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 100000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s;
}

.nbd-search-modal-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.search-modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.88);
  backdrop-filter: blur(8px);
}

.search-modal-dialog {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 1.5rem;
  transform: translateY(-20px);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.nbd-search-modal-overlay.is-open .search-modal-dialog {
  transform: translateY(0);
}

.search-modal-close-btn {
  position: absolute;
  top: 2rem;
  right: 2rem;
  background: rgba(255, 255, 255, 0.12);
  border: none;
  border-radius: var(--nbd-radius-full);
  color: #ffffff;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color var(--nbd-transition-fast);
}

.search-modal-close-btn:hover {
  background-color: var(--nbd-primary);
}

.search-modal-subtitle {
  display: block;
  text-align: center;
  color: #94a3b8;
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

.search-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
  background-color: #ffffff;
  border-radius: var(--nbd-radius-lg);
  padding: 0.5rem 0.75rem 0.5rem 1.5rem;
  box-shadow: var(--nbd-shadow-lg);
}

.search-icon-svg {
  stroke: #94a3b8;
  margin-right: 0.75rem;
  flex-shrink: 0;
}

.search-modal-input {
  flex: 1;
  border: none !important;
  box-shadow: none !important;
  font-size: 1.15rem !important;
  padding: 0.75rem 0 !important;
  background: transparent !important;
  color: #0f172a !important;
}

.search-modal-submit-btn {
  background-color: var(--nbd-primary);
  color: #ffffff;
  border: none;
  padding: 0.85rem 1.75rem;
  border-radius: var(--nbd-radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background-color var(--nbd-transition-fast);
}

.search-modal-submit-btn:hover {
  background-color: var(--nbd-primary-hover);
}

.popular-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.popular-label {
  color: #94a3b8;
  font-size: 0.85rem;
  font-weight: 600;
}

.popular-tag-chip {
  background: rgba(255, 255, 255, 0.1);
  color: #f8fafc;
  padding: 0.35rem 0.85rem;
  border-radius: var(--nbd-radius-full);
  font-size: 0.8rem;
  font-weight: 600;
}

.popular-tag-chip:hover {
  background-color: var(--nbd-primary);
  color: #ffffff;
}

.search-escape-hint kbd {
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  padding: 0.2rem 0.5rem;
  border-radius: var(--nbd-radius-sm);
  font-size: 0.75rem;
}

/* 13.7 Off-Canvas Mobile Drawer */
.nbd-mobile-drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 100000;
  visibility: hidden;
  transition: visibility 0.3s;
}

.nbd-mobile-drawer-overlay.is-open {
  visibility: visible;
}

.mobile-drawer-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.6);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.nbd-mobile-drawer-overlay.is-open .mobile-drawer-backdrop {
  opacity: 1;
}

.mobile-drawer-panel {
  position: absolute;
  top: 0;
  left: 0;
  width: 320px;
  max-width: 85vw;
  height: 100%;
  background-color: var(--nbd-bg-surface);
  box-shadow: var(--nbd-shadow-lg);
  display: flex;
  flex-direction: column;
  transform: translateX(-100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
  padding: 1.5rem;
}

.nbd-mobile-drawer-overlay.is-open .mobile-drawer-panel {
  transform: translateX(0);
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--nbd-border-color);
}

.mobile-drawer-close-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--nbd-text-main);
  padding: 0.25rem;
}

.mobile-drawer-search {
  margin: 1.25rem 0;
}

.mobile-search-form {
  display: flex;
  align-items: center;
  background-color: var(--nbd-bg-subtle);
  border: 1px solid var(--nbd-border-color);
  border-radius: var(--nbd-radius-sm);
  overflow: hidden;
}

.mobile-search-input {
  flex: 1;
  border: none !important;
  padding: 0.65rem 0.85rem !important;
  background: transparent !important;
  font-size: 0.9rem !important;
  color: var(--nbd-text-main) !important;
}

.mobile-search-submit {
  background: transparent;
  border: none;
  padding: 0 0.85rem;
  color: var(--nbd-text-muted);
  cursor: pointer;
}

.mobile-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-nav-list li {
  border-bottom: 1px solid var(--nbd-border-subtle);
}

.mobile-nav-list a {
  display: block;
  padding: 0.85rem 0;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--nbd-text-main);
}

.mobile-nav-list .sub-menu {
  list-style: none;
  padding-left: 1rem;
  border-left: 2px solid var(--nbd-primary-subtle);
}

.mobile-nav-list .sub-menu a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--nbd-text-body);
}

.mobile-drawer-footer {
  margin-top: auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--nbd-border-color);
}

.mobile-dark-mode-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--nbd-bg-subtle);
  border: 1px solid var(--nbd-border-color);
  border-radius: var(--nbd-radius-sm);
  padding: 0.5rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--nbd-text-main);
  cursor: pointer;
}

.mobile-drawer-socials {
  display: flex;
  gap: 1rem;
}

/* ==========================================================================
   14. Footer System & Back to Top (Phase 4 Core)
   ========================================================================== */

/* 14.1 Dynamic Multi-Column Footer Grid */
.footer-grid-cols-1 {
  grid-template-columns: 1fr;
}

.footer-grid-cols-2 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .footer-grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.footer-grid-cols-3 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .footer-grid-cols-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .footer-grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer-grid-cols-4 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .footer-grid-cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* 14.2 Footer Widget Elements */
.footer-brand {
  margin-bottom: 1.25rem;
}

.footer-site-title {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0;
  letter-spacing: -0.02em;
}

.footer-site-title a {
  color: #ffffff;
}

.footer-site-title a:hover {
  color: var(--nbd-primary);
}

.footer-about-text {
  font-size: 0.925rem;
  line-height: 1.65;
  color: #94a3b8;
  margin-bottom: 1.25rem;
}

.footer-contact-details {
  list-style: none;
  margin: 1rem 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.875rem;
}

.footer-contact-details li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: #94a3b8;
}

.footer-contact-details svg {
  stroke: var(--nbd-primary);
  flex-shrink: 0;
}

.footer-contact-details a {
  color: #94a3b8;
  transition: color var(--nbd-transition-fast);
}

.footer-contact-details a:hover {
  color: #ffffff;
}

.footer-about-socials,
.footer-bottom-socials {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer-about-socials .social-icon-link,
.footer-bottom-socials .social-icon-link {
  color: #94a3b8;
  width: 34px;
  height: 34px;
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: var(--nbd-radius-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--nbd-transition-fast);
}

.footer-about-socials .social-icon-link:hover,
.footer-bottom-socials .social-icon-link:hover {
  background-color: var(--nbd-primary);
  color: #ffffff;
  transform: translateY(-2px);
}

/* 14.3 Footer Links & Navigation */
.footer-links-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links-list li {
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-links-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.footer-links-list a {
  color: #94a3b8;
  transition: color var(--nbd-transition-fast), padding-left var(--nbd-transition-fast);
}

.footer-links-list a:hover {
  color: #ffffff;
  padding-left: 0.35rem;
}

/* 14.4 Footer Mini Post Cards in Dark Theme */
.site-footer .nbd-card-mini {
  background-color: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.08);
  padding: 0.65rem;
}

.site-footer .nbd-card-mini:hover {
  background-color: rgba(255, 255, 255, 0.06);
  border-color: var(--nbd-primary);
}

.site-footer .nbd-mini-title a {
  color: #f1f5f9;
}

.site-footer .nbd-mini-title a:hover {
  color: var(--nbd-primary);
}

.site-footer .nbd-mini-meta {
  color: #64748b;
}

.site-footer .nbd-rank-badge {
  color: #475569;
}

/* 14.5 Accessible Floating Back to Top Button */
.nbd-back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border-radius: var(--nbd-radius-full);
  background-color: var(--nbd-primary);
  color: #ffffff;
  border: none;
  box-shadow: var(--nbd-shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 990;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s, background-color var(--nbd-transition-fast);
}

.nbd-back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nbd-back-to-top:hover {
  background-color: var(--nbd-primary-hover);
  transform: translateY(-3px);
  box-shadow: 0 10px 25px -5px rgba(225, 29, 72, 0.4);
}

.nbd-back-to-top:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: 2px;
}

@media (max-width: 640px) {
  .nbd-back-to-top {
    bottom: 1.25rem;
    right: 1.25rem;
    width: 40px;
    height: 40px;
  }
}