/**
 * Uttercode Blog Stylesheet (css/blog.css)
 * Centralized styles for Blog Index, Sidebar, Article Detail Pages, Components & Widgets
 * Version: 2.0
 */

/* ==========================================================================
   1. DESIGN TOKENS & CSS VARIABLES
   ========================================================================== */
:root {
  --blog-primary: #7d68ca;
  --blog-primary-dark: #4c1d95;
  --blog-primary-light: rgba(125, 104, 202, 0.12);
  --blog-navy: #1e1b4b;
  --blog-navy-deep: #0f172a;
  --blog-text: #334155;
  --blog-text-dark: #0f172a;
  --blog-text-muted: #64748b;
  --blog-border: #e2e8f0;
  --blog-border-light: #f1f5f9;
  --blog-bg-light: #f8fafc;
  --blog-success-border: #bbf7d0;
  --blog-success-bg: #f0fdf4;
  --blog-danger-border: #fed7d7;
  --blog-danger-bg: #fff5f5;
  --blog-card-radius: 16px;
  --blog-transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --blog-shadow-sm: 0 4px 15px rgba(0, 0, 0, 0.03);
  --blog-shadow-md: 0 10px 25px rgba(125, 104, 202, 0.08);
  --blog-shadow-lg: 0 16px 36px rgba(125, 104, 202, 0.12);
}

/* ==========================================================================
   2. BLOG HERO & BANNER (blog/index.php)
   ========================================================================== */
.blog-hero {
  background: linear-gradient(135deg, #0b0f19 0%, #151128 50%, #291e50 100%);
  color: #ffffff;
  position: relative;
  overflow: hidden;
  padding: 70px 0 60px;
}

.blog-hero::before {
  content: "";
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 500px;
  background: radial-gradient(
    circle,
    rgba(125, 104, 202, 0.35) 0%,
    rgba(168, 85, 247, 0.15) 40%,
    rgba(0, 0, 0, 0) 70%
  );
  filter: blur(60px);
  pointer-events: none;
}

/* Category Filter Buttons */
.category-filter-btn {
  border: 1px solid #e5e7eb;
  background: #ffffff;
  color: #4b5563;
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s ease;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}

.category-filter-btn:hover,
.category-filter-btn.active {
  background: var(--blog-primary);
  color: #ffffff;
  border-color: var(--blog-primary);
  box-shadow: 0 4px 12px rgba(125, 104, 202, 0.25);
}

/* Search Input */
.search-input-group {
  position: relative;
}

.search-input-group .form-control {
  border-radius: 999px;
  padding-left: 44px;
  padding-right: 20px;
  height: 48px;
  border: 1px solid #d1d5db;
  box-shadow: none;
  transition: border-color 0.2s ease;
}

.search-input-group .form-control:focus {
  border-color: var(--blog-primary);
  box-shadow: 0 0 0 4px rgba(125, 104, 202, 0.15);
}

.search-input-group .search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: #9ca3af;
  font-size: 1.1rem;
}

/* Sidebar Components */
.sidebar-box {
  background: #ffffff;
  border: 1px solid var(--blog-border);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 30px;
}

.sidebar-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--blog-text-dark);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--blog-border-light);
}

.hover-bg-light {
  transition: background-color 0.15s ease;
}

.hover-bg-light:hover {
  background-color: var(--blog-bg-light);
}

/* ==========================================================================
   3. BLOG CARDS & BADGES (Grid & Feed)
   ========================================================================== */
.blog-badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.blog-badge-purple {
  background: rgba(125, 104, 202, 0.12);
  color: var(--blog-primary);
  border: 1px solid rgba(125, 104, 202, 0.25);
}

.blog-badge-blue {
  background: rgba(59, 130, 246, 0.12);
  color: #2563eb;
  border: 1px solid rgba(59, 130, 246, 0.25);
}

.blog-badge-emerald {
  background: rgba(16, 185, 129, 0.12);
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.blog-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: #6b7280;
}

/* Standard Article Card */
.blog-card {
  border-radius: var(--blog-card-radius);
  border: 1px solid #e5e7eb;
  background: #ffffff;
  transition: var(--blog-transition);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.blog-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--blog-shadow-lg);
  border-color: #c7d2fe;
}

.blog-card .card-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background-color: var(--blog-navy-deep);
}

.blog-card .card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.blog-card:hover .card-img-wrap img {
  transform: scale(1.05);
}

.blog-card .card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

/* Featured Hero Card */
.blog-featured-card {
  background: linear-gradient(135deg, #fbfaff 0%, #ffffff 100%);
  border: 1px solid #e0e7ff;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(125, 104, 202, 0.08);
  transition: var(--blog-transition);
}

.blog-featured-card:hover {
  border-color: #818cf8;
  box-shadow: 0 16px 40px rgba(125, 104, 202, 0.14);
}

/* ==========================================================================
   4. ARTICLE DETAIL TYPOGRAPHY & LAYOUT
   ========================================================================== */
.blog-detail-content {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--blog-text);
}

.blog-detail-content p {
  margin-bottom: 1.5rem;
}

.blog-detail-content h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--blog-text-dark);
  margin-top: 3.2rem;
  margin-bottom: 1.25rem;
  position: relative;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--blog-border-light);
}

.blog-detail-content h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #1e293b;
  margin-top: 2rem;
  margin-bottom: 0.85rem;
}

.blog-detail-content h4 {
  font-size: 1.15rem;
  font-weight: 600;
  color: #1e293b;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

.blog-detail-content ul,
.blog-detail-content ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

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

.blog-detail-content blockquote {
  border-left: 4px solid var(--blog-primary);
  padding: 14px 20px;
  background: var(--blog-bg-light);
  border-radius: 0 10px 10px 0;
  font-style: italic;
  color: #475569;
  margin: 1.8rem 0;
}

.blog-detail-content code {
  font-family:
    SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New",
    monospace;
  font-size: 0.88em;
  background: #f1f5f9;
  padding: 2px 6px;
  border-radius: 4px;
  color: #4c1d95;
}

.blog-detail-content pre {
  background: #0f172a;
  color: #f8fafc;
  padding: 16px 20px;
  border-radius: 10px;
  overflow-x: auto;
  font-size: 0.88rem;
  line-height: 1.6;
  margin: 1.5rem 0;
}

.article-subtitle {
  font-size: 1.15rem;
  color: var(--blog-text-muted);
  line-height: 1.6;
  margin-top: 0.5rem;
  margin-bottom: 1.5rem;
}

.author-trust-bar {
  background: var(--blog-bg-light);
  border: 1px solid var(--blog-border);
  border-radius: 12px;
  padding: 14px 20px;
  margin-bottom: 2rem;
}

/* ==========================================================================
   5. SPECIAL CALLOUT BOXES & TABLE OF CONTENTS
   ========================================================================== */
/* Google Featured Snippet / Quick Answer Box */
.quick-answer-box {
  background: linear-gradient(135deg, var(--blog-success-bg) 0%, #e8f7ee 100%);
  border: 1px solid var(--blog-success-border);
  border-left: 5px solid #16a34a;
  border-radius: 12px;
  padding: 22px 26px;
  margin: 28px 0 32px;
}

/* Top "What You'll Learn" Box */
.toc-box {
  background: linear-gradient(135deg, #f8f9fc 0%, #f1f5f9 100%);
  border: 1px solid var(--blog-border);
  border-radius: 14px;
  padding: 22px 26px;
  margin: 28px 0 36px;
}

.toc-title {
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #475569;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Desktop Sticky Table of Contents Sidebar */
.sticky-toc {
  position: sticky;
  top: 90px;
  background: #ffffff;
  border: 1px solid var(--blog-border);
  border-radius: 14px;
  padding: 20px;
  box-shadow: var(--blog-shadow-sm);
}

.sticky-toc a {
  color: #475569;
  text-decoration: none;
  font-size: 0.88rem;
  display: block;
  padding: 5px 0;
  transition: color 0.15s ease;
}

.sticky-toc a:hover {
  color: var(--blog-primary);
  font-weight: 600;
}

/* ==========================================================================
   6. PROCESS FLOWCHARTS & WORKFLOW PILLS
   ========================================================================== */
.workflow-step-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 22px;
  background: var(--blog-bg-light);
  border: 1px dashed #cbd5e1;
  border-radius: 14px;
  margin: 24px 0 30px;
}

.workflow-pill {
  background: #ffffff;
  border: 1px solid var(--blog-primary);
  color: var(--blog-primary-dark);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 6px 14px;
  border-radius: 999px;
  box-shadow: 0 2px 6px rgba(125, 104, 202, 0.1);
}

.workflow-arrow {
  color: #94a3b8;
  font-weight: bold;
}

/* ==========================================================================
   7. EVALUATION TABLES & COMPARISON CARDS
   ========================================================================== */
.eval-table th {
  background: var(--blog-navy);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.92rem;
  padding: 12px 14px;
}

.eval-table td {
  vertical-align: middle;
  font-size: 0.95rem;
  padding: 12px 14px;
}

.comparison-card {
  border-radius: 14px;
  padding: 22px;
  height: 100%;
}

.comparison-card-bad {
  background: var(--blog-danger-bg);
  border: 1px solid var(--blog-danger-border);
}

.comparison-card-good {
  background: var(--blog-success-bg);
  border: 1px solid var(--blog-success-border);
}

.red-flag-card {
  background: var(--blog-danger-bg);
  border: 1px solid var(--blog-danger-border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 16px;
}

/* ==========================================================================
   8. INTERACTIVE MODULE & FEATURE CARDS
   ========================================================================== */
.module-group-card,
.sme-card,
.conn-card,
.deploy-card,
.sign-card,
.step-card,
.kpi-card,
.sign-item,
.inv-card {
  background: #ffffff;
  border: 1px solid var(--blog-border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 16px;
  transition: var(--blog-transition);
}

.module-group-card:hover,
.sme-card:hover,
.conn-card:hover,
.deploy-card:hover,
.sign-card:hover,
.step-card:hover,
.kpi-card:hover,
.sign-item:hover,
.inv-card:hover {
  border-color: var(--blog-primary);
  box-shadow: var(--blog-shadow-md);
}

.comparison-card-excel {
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
}

.comparison-card-erp {
  background: #f5f3ff;
  border: 1px solid #ddd6fe;
}

.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
}

.sign-num-badge {
  background: var(--blog-primary);
  color: #ffffff;
  font-size: 0.9rem;
  font-weight: 700;
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  margin-right: 10px;
  flex-shrink: 0;
}

/* ==========================================================================
   9. FAQS & TOPIC CLUSTER CARDS
   ========================================================================== */
.faq-card {
  border: 1px solid var(--blog-border);
  border-radius: 12px;
  padding: 22px;
  margin-bottom: 18px;
  background: #ffffff;
}

.faq-card h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--blog-text-dark);
  margin-bottom: 10px;
}

.faq-card p {
  font-size: 0.98rem;
  color: #475569;
  margin-bottom: 0;
  line-height: 1.7;
}

/* Bottom Related Topic Cards */
.related-blog-card {
  border: 1px solid var(--blog-border);
  border-radius: 14px;
  overflow: hidden;
  background: #ffffff;
  height: 100%;
  transition: var(--blog-transition);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.related-blog-card:hover {
  transform: translateY(-4px);
  border-color: var(--blog-primary);
  box-shadow: var(--blog-shadow-md);
  color: inherit;
}

/* ==========================================================================
   10. RESPONSIVE MEDIA QUERIES
   ========================================================================== */
@media (max-width: 991.98px) {
  .blog-hero {
    padding: 50px 0 40px;
  }

  .blog-detail-content h2 {
    font-size: 1.5rem;
    margin-top: 2.5rem;
  }

  .blog-detail-content h3 {
    font-size: 1.2rem;
  }
}

@media (max-width: 767.98px) {
  .blog-detail-content {
    font-size: 1rem;
    line-height: 1.75;
  }

  .toc-box,
  .quick-answer-box {
    padding: 18px 20px;
  }

  .workflow-step-flow {
    padding: 16px 12px;
  }

  .workflow-pill {
    font-size: 0.8rem;
    padding: 4px 10px;
  }
}