/* ============================================
   Refinance Calc Tool - Global Styles
   Prefix: rfc (unique to refinancecalctool.org)
   Layout: Data Dashboard + Minimal Cards + Resource Library
   ============================================ */

/* CSS Variables */
:root {
  --rfc-primary: #1a5f7a;
  --rfc-primary-dark: #134a61;
  --rfc-primary-light: #2a7f9e;
  --rfc-accent: #e76f51;
  --rfc-accent-light: #f4a261;
  --rfc-sand: #e9c46a;
  --rfc-bg: #f8f9fa;
  --rfc-bg-alt: #eef2f5;
  --rfc-white: #ffffff;
  --rfc-text: #2d3436;
  --rfc-text-light: #636e72;
  --rfc-text-muted: #b2bec3;
  --rfc-border: #dfe6e9;
  --rfc-border-light: #f1f2f6;
  --rfc-success: #00b894;
  --rfc-warning: #fdcb6e;
  --rfc-danger: #d63031;
  --rfc-radius-sm: 6px;
  --rfc-radius-md: 10px;
  --rfc-radius-lg: 14px;
  --rfc-shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --rfc-shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --rfc-shadow-lg: 0 8px 24px rgba(0,0,0,0.10);
  --rfc-transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --rfc-max-width: 1200px;
  --rfc-content-width: 800px;
  --rfc-sidebar-width: 340px;
  --rfc-nav-height: 64px;
}

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--rfc-text);
  background: var(--rfc-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: var(--rfc-accent);
}

/* ============================================
   Navigation
   ============================================ */
.rfc-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--rfc-white);
  border-bottom: 1px solid var(--rfc-border);
  height: var(--rfc-nav-height);
}

.rfc-nav-inner {
  max-width: var(--rfc-max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.rfc-nav-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--rfc-primary);
  letter-spacing: -0.5px;
}

.rfc-nav-logo span {
  color: var(--rfc-accent);
}

.rfc-nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.rfc-nav-links a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--rfc-text-light);
  padding: 4px 0;
  position: relative;
}

.rfc-nav-links a:hover,
.rfc-nav-links a.active {
  color: var(--rfc-primary);
}

.rfc-nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--rfc-accent);
  border-radius: 1px;
}

.rfc-nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--rfc-primary);
  cursor: pointer;
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .rfc-nav-toggle {
    display: block !important;
  }

  .rfc-nav-links {
    display: none !important;
    position: absolute;
    top: var(--rfc-nav-height);
    left: 0;
    right: 0;
    background: var(--rfc-white);
    flex-direction: column !important;
    gap: 0;
    padding: 8px 0;
    border-bottom: 2px solid var(--rfc-border);
    box-shadow: var(--rfc-shadow-lg);
  }

  .rfc-nav-links.open {
    display: flex !important;
  }

  .rfc-nav-links li {
    width: 100%;
  }

  .rfc-nav-links a {
    display: block;
    padding: 14px 24px;
    border-bottom: 1px solid var(--rfc-border-light);
    font-size: 1rem;
  }

  .rfc-nav-links a.active::after {
    display: none;
  }
}

/* ============================================
   Container & Layout
   ============================================ */
.rfc-container {
  max-width: var(--rfc-max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.rfc-container-narrow {
  max-width: var(--rfc-content-width);
  margin: 0 auto;
  padding: 0 24px;
}

.rfc-section {
  padding: 64px 0;
}

.rfc-section-alt {
  background: var(--rfc-bg-alt);
}

.rfc-two-col {
  display: grid;
  grid-template-columns: 1fr var(--rfc-sidebar-width);
  gap: 48px;
  align-items: start;
}

@media (max-width: 1024px) {
  .rfc-two-col {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* ============================================
   Typography
   ============================================ */
.rfc-h1 {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--rfc-text);
  margin-bottom: 20px;
}

.rfc-h2 {
  font-size: 1.875rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--rfc-text);
  margin-bottom: 16px;
}

.rfc-h3 {
  font-size: 1.375rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--rfc-text);
  margin-bottom: 12px;
}

.rfc-h4 {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--rfc-text);
  margin-bottom: 8px;
}

.rfc-lead {
  font-size: 1.125rem;
  color: var(--rfc-text-light);
  line-height: 1.7;
  margin-bottom: 24px;
}

.rfc-text {
  font-size: 1rem;
  color: var(--rfc-text);
  line-height: 1.75;
  margin-bottom: 16px;
}

.rfc-text-small {
  font-size: 0.875rem;
  color: var(--rfc-text-light);
  line-height: 1.6;
}

.rfc-text-muted {
  color: var(--rfc-text-muted);
}

.rfc-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--rfc-accent);
  margin-bottom: 8px;
}

/* ============================================
   Buttons
   ============================================ */
.rfc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--rfc-radius-md);
  border: none;
  cursor: pointer;
  transition: var(--rfc-transition);
  text-decoration: none;
}

.rfc-btn-primary {
  background: var(--rfc-primary);
  color: var(--rfc-white);
}

.rfc-btn-primary:hover {
  background: var(--rfc-primary-dark);
  color: var(--rfc-white);
  transform: translateY(-1px);
  box-shadow: var(--rfc-shadow-md);
}

.rfc-btn-accent {
  background: var(--rfc-accent);
  color: var(--rfc-white);
}

.rfc-btn-accent:hover {
  background: #d45a3c;
  color: var(--rfc-white);
  transform: translateY(-1px);
}

.rfc-btn-outline {
  background: transparent;
  color: var(--rfc-primary);
  border: 2px solid var(--rfc-primary);
}

.rfc-btn-outline:hover {
  background: var(--rfc-primary);
  color: var(--rfc-white);
}

.rfc-btn-sm {
  padding: 8px 18px;
  font-size: 0.875rem;
}

.rfc-btn-lg {
  padding: 16px 36px;
  font-size: 1rem;
}

/* ============================================
   Cards - Article & Tool (Whole Card Clickable)
   ============================================ */
a.rfc-article-card,
a.rfc-tool-card,
a.rfc-inline-tool {
  display: block;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

a.rfc-article-card *,
a.rfc-tool-card *,
a.rfc-inline-tool * {
  pointer-events: none;
}

.rfc-article-card {
  background: var(--rfc-white);
  border-radius: var(--rfc-radius-md);
  overflow: hidden;
  box-shadow: var(--rfc-shadow-sm);
  transition: var(--rfc-transition);
  border: 1px solid var(--rfc-border-light);
}

.rfc-article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--rfc-shadow-lg);
  border-color: var(--rfc-border);
}

.rfc-article-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.rfc-article-card-body {
  padding: 20px 24px 24px;
}

.rfc-article-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8125rem;
  color: var(--rfc-text-muted);
  margin-bottom: 10px;
}

.rfc-article-card-title {
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--rfc-text);
  margin-bottom: 8px;
}

.rfc-article-card-excerpt {
  font-size: 0.9375rem;
  color: var(--rfc-text-light);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.rfc-tool-card {
  background: var(--rfc-white);
  border-radius: var(--rfc-radius-md);
  padding: 28px;
  box-shadow: var(--rfc-shadow-sm);
  border: 1px solid var(--rfc-border-light);
  transition: var(--rfc-transition);
  position: relative;
}

.rfc-tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--rfc-shadow-lg);
  border-color: var(--rfc-primary-light);
}

.rfc-tool-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--rfc-radius-sm);
  background: var(--rfc-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.rfc-tool-card-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--rfc-text);
  margin-bottom: 8px;
}

.rfc-tool-card-desc {
  font-size: 0.9375rem;
  color: var(--rfc-text-light);
  line-height: 1.6;
  margin-bottom: 16px;
}

.rfc-tool-card-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--rfc-primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* Inline Tool Card (in articles) */
a.rfc-inline-tool {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--rfc-bg-alt);
  border: 1px solid var(--rfc-border);
  border-radius: var(--rfc-radius-md);
  padding: 16px 20px;
  margin: 24px 0;
  transition: var(--rfc-transition);
}

a.rfc-inline-tool:hover {
  background: var(--rfc-white);
  border-color: var(--rfc-primary);
  box-shadow: var(--rfc-shadow-md);
}

.rfc-inline-tool-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--rfc-radius-sm);
  background: var(--rfc-primary);
  color: var(--rfc-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.rfc-inline-tool-content {
  flex: 1;
}

.rfc-inline-tool-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--rfc-text);
  margin-bottom: 2px;
}

.rfc-inline-tool-desc {
  font-size: 0.875rem;
  color: var(--rfc-text-light);
}

.rfc-inline-tool-privacy {
  font-size: 0.75rem;
  color: var(--rfc-text-muted);
  margin-top: 6px;
  font-style: italic;
}

/* ============================================
   Grid Systems
   ============================================ */
.rfc-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.rfc-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.rfc-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

@media (max-width: 1024px) {
  .rfc-grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .rfc-grid-2,
  .rfc-grid-3,
  .rfc-grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Hero Section
   ============================================ */
.rfc-hero {
  background: linear-gradient(135deg, var(--rfc-primary) 0%, var(--rfc-primary-dark) 100%);
  color: var(--rfc-white);
  padding: 80px 0 96px;
  position: relative;
  overflow: hidden;
}

.rfc-hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: rgba(255,255,255,0.03);
  border-radius: 50%;
}

.rfc-hero-inner {
  max-width: var(--rfc-max-width);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.rfc-hero-label {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(4px);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.rfc-hero h1 {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  max-width: 700px;
}

.rfc-hero p {
  font-size: 1.125rem;
  line-height: 1.7;
  opacity: 0.9;
  max-width: 560px;
  margin-bottom: 32px;
}

.rfc-hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.rfc-hero .rfc-btn-primary {
  background: var(--rfc-white);
  color: var(--rfc-primary);
}

.rfc-hero .rfc-btn-primary:hover {
  background: var(--rfc-bg-alt);
  color: var(--rfc-primary-dark);
}

.rfc-hero .rfc-btn-outline {
  border-color: rgba(255,255,255,0.5);
  color: var(--rfc-white);
}

.rfc-hero .rfc-btn-outline:hover {
  background: rgba(255,255,255,0.1);
  color: var(--rfc-white);
}

@media (max-width: 768px) {
  .rfc-hero { padding: 60px 0 72px; }
  .rfc-hero h1 { font-size: 2.25rem; }
  .rfc-hero p { font-size: 1rem; }
}

/* ============================================
   Stats / Dashboard Bar
   ============================================ */
.rfc-stats-bar {
  background: var(--rfc-white);
  border-bottom: 1px solid var(--rfc-border);
  padding: 24px 0;
  margin-top: -32px;
  position: relative;
  z-index: 2;
}

.rfc-stats-inner {
  max-width: var(--rfc-max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.rfc-stat-item {
  text-align: center;
  padding: 16px;
}

.rfc-stat-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--rfc-primary);
  line-height: 1;
  margin-bottom: 6px;
}

.rfc-stat-label {
  font-size: 0.8125rem;
  color: var(--rfc-text-light);
  font-weight: 500;
}

@media (max-width: 768px) {
  .rfc-stats-inner {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

/* ============================================
   Ad Slots
   ============================================ */
.rfc-ad-slot {
  display: flex;
  width: 100%;
  height: 250px;
  background: var(--rfc-bg-alt);
  border: 1px dashed var(--rfc-border);
  border-radius: var(--rfc-radius-md);
  margin: 24px 0;
  align-items: center;
  justify-content: center;
  color: var(--rfc-text-muted);
  font-size: 0.875rem;
}

.rfc-ad-slot.has-content {
  display: flex;
}

/* ============================================
   Article Content (Post Page)
   ============================================ */
.rfc-article-header {
  margin-bottom: 32px;
}

.rfc-article-header h1 {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

.rfc-article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.875rem;
  color: var(--rfc-text-light);
  flex-wrap: wrap;
}

.rfc-article-meta img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
}

.rfc-article-body {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--rfc-text);
}

.rfc-article-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 40px 0 16px;
  color: var(--rfc-text);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--rfc-border-light);
}

.rfc-article-body h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 32px 0 12px;
  color: var(--rfc-primary);
}

.rfc-article-body p {
  margin-bottom: 20px;
}

.rfc-article-body ul,
.rfc-article-body ol {
  margin: 20px 0;
  padding-left: 28px;
}

.rfc-article-body li {
  margin-bottom: 8px;
}

.rfc-article-body blockquote {
  border-left: 4px solid var(--rfc-accent);
  padding: 16px 24px;
  margin: 24px 0;
  background: var(--rfc-bg-alt);
  border-radius: 0 var(--rfc-radius-sm) var(--rfc-radius-sm) 0;
  font-style: italic;
  color: var(--rfc-text-light);
}

.rfc-article-body img {
  border-radius: var(--rfc-radius-md);
  margin: 24px 0;
  box-shadow: var(--rfc-shadow-sm);
}

.rfc-article-body a {
  color: var(--rfc-primary);
  border-bottom: 1px solid var(--rfc-primary-light);
  transition: var(--rfc-transition);
}

.rfc-article-body a:hover {
  color: var(--rfc-accent);
  border-bottom-color: var(--rfc-accent);
}

/* ============================================
   Article Footer - Two Column Layout
   ============================================ */
.rfc-article-footer {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 2px solid var(--rfc-border-light);
}

.rfc-article-footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.rfc-related-articles h3,
.rfc-recommended-tools h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--rfc-text);
}

.rfc-related-list,
.rfc-tool-list {
  list-style: none;
}

.rfc-related-list li,
.rfc-tool-list li {
  margin-bottom: 12px;
}

.rfc-related-list a,
.rfc-tool-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9375rem;
  color: var(--rfc-text);
  padding: 8px 0;
  border-bottom: 1px solid var(--rfc-border-light);
}

.rfc-related-list a:hover,
.rfc-tool-list a:hover {
  color: var(--rfc-primary);
  padding-left: 4px;
}

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

/* ============================================
   Author Box
   ============================================ */
.rfc-author-box {
  background: var(--rfc-bg-alt);
  border-radius: var(--rfc-radius-md);
  padding: 28px;
  margin-top: 32px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.rfc-author-box img {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.rfc-author-box h4 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.rfc-author-box p {
  font-size: 0.9375rem;
  color: var(--rfc-text-light);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .rfc-author-box {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }
}

/* ============================================
   Tool Page Styles
   ============================================ */
.rfc-tool-page {
  background: var(--rfc-white);
  border-radius: var(--rfc-radius-lg);
  padding: 40px;
  box-shadow: var(--rfc-shadow-sm);
  border: 1px solid var(--rfc-border-light);
}

.rfc-tool-input-group {
  margin-bottom: 24px;
}

.rfc-tool-input-group label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--rfc-text);
  margin-bottom: 8px;
}

.rfc-tool-input-group input,
.rfc-tool-input-group select {
  width: 100%;
  padding: 12px 16px;
  font-size: 1rem;
  border: 2px solid var(--rfc-border);
  border-radius: var(--rfc-radius-sm);
  background: var(--rfc-white);
  color: var(--rfc-text);
  transition: var(--rfc-transition);
}

.rfc-tool-input-group input:focus,
.rfc-tool-input-group select:focus {
  outline: none;
  border-color: var(--rfc-primary);
  box-shadow: 0 0 0 3px rgba(26,95,122,0.1);
}

.rfc-tool-input-group input::placeholder {
  color: var(--rfc-text-muted);
}

.rfc-tool-result-box {
  background: var(--rfc-bg-alt);
  border-radius: var(--rfc-radius-md);
  padding: 24px;
  margin-top: 24px;
}

.rfc-tool-result-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--rfc-primary);
  line-height: 1;
}

.rfc-tool-result-label {
  font-size: 0.875rem;
  color: var(--rfc-text-light);
  margin-top: 4px;
}

.rfc-tool-chart-area {
  margin-top: 32px;
  padding: 24px;
  background: var(--rfc-white);
  border: 1px solid var(--rfc-border);
  border-radius: var(--rfc-radius-md);
  min-height: 300px;
}

.rfc-tool-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.rfc-tool-history {
  margin-top: 32px;
  padding: 24px;
  background: var(--rfc-bg-alt);
  border-radius: var(--rfc-radius-md);
}

.rfc-tool-history h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.rfc-tool-history-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--rfc-border-light);
  font-size: 0.875rem;
}

/* ============================================
   FAQ Accordion
   ============================================ */
.rfc-faq-item {
  border-bottom: 1px solid var(--rfc-border);
  padding: 20px 0;
}

.rfc-faq-question {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--rfc-text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: var(--rfc-transition);
}

.rfc-faq-question:hover {
  color: var(--rfc-primary);
}

.rfc-faq-question::after {
  content: "+";
  font-size: 1.25rem;
  color: var(--rfc-accent);
  flex-shrink: 0;
  transition: var(--rfc-transition);
}

.rfc-faq-item.active .rfc-faq-question::after {
  content: "−";
}

.rfc-faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.rfc-faq-item.active .rfc-faq-answer {
  max-height: 500px;
  padding-top: 12px;
}

.rfc-faq-answer p {
  font-size: 0.9375rem;
  color: var(--rfc-text-light);
  line-height: 1.7;
}

/* ============================================
   Breadcrumb
   ============================================ */
.rfc-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--rfc-text-light);
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.rfc-breadcrumb a {
  color: var(--rfc-text-light);
}

.rfc-breadcrumb a:hover {
  color: var(--rfc-primary);
}

.rfc-breadcrumb-sep {
  color: var(--rfc-text-muted);
}

/* ============================================
   Footer
   ============================================ */
.rfc-footer {
  background: var(--rfc-text);
  color: var(--rfc-text-muted);
  padding: 48px 0 24px;
  margin-top: 64px;
}

.rfc-footer-inner {
  max-width: var(--rfc-max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.rfc-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.rfc-footer-brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--rfc-white);
  margin-bottom: 12px;
}

.rfc-footer-brand span {
  color: var(--rfc-accent-light);
}

.rfc-footer-desc {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--rfc-text-muted);
  margin-bottom: 16px;
}

.rfc-footer-heading {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--rfc-white);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.rfc-footer-links {
  list-style: none;
}

.rfc-footer-links li {
  margin-bottom: 10px;
}

.rfc-footer-links a {
  font-size: 0.875rem;
  color: var(--rfc-text-muted);
  transition: var(--rfc-transition);
}

.rfc-footer-links a:hover {
  color: var(--rfc-white);
}

.rfc-footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.8125rem;
}

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

@media (max-width: 480px) {
  .rfc-footer-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Contact Page - No Form Block
   ============================================ */
.rfc-contact-block {
  background: var(--rfc-bg-alt);
  border-radius: var(--rfc-radius-md);
  padding: 32px;
  margin: 32px 0;
  border-left: 4px solid var(--rfc-accent);
}

.rfc-contact-block h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--rfc-text);
}

.rfc-contact-block p {
  font-size: 0.9375rem;
  color: var(--rfc-text-light);
  line-height: 1.7;
  margin-bottom: 8px;
}

.rfc-contact-email {
  font-size: 1rem;
  font-weight: 600;
  color: var(--rfc-primary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}

/* ============================================
   About Page - Author Timeline
   ============================================ */
.rfc-timeline {
  position: relative;
  padding-left: 32px;
}

.rfc-timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--rfc-border);
}

.rfc-timeline-item {
  position: relative;
  margin-bottom: 32px;
}

.rfc-timeline-item::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--rfc-accent);
  border: 2px solid var(--rfc-white);
  box-shadow: 0 0 0 2px var(--rfc-accent);
}

.rfc-timeline-year {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--rfc-accent);
  margin-bottom: 4px;
}

.rfc-timeline-title {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--rfc-text);
  margin-bottom: 4px;
}

.rfc-timeline-desc {
  font-size: 0.9375rem;
  color: var(--rfc-text-light);
  line-height: 1.6;
}

/* ============================================
   Utility Classes
   ============================================ */
.rfc-text-center { text-align: center; }
.rfc-text-right { text-align: right; }
.rfc-mt-0 { margin-top: 0; }
.rfc-mt-1 { margin-top: 8px; }
.rfc-mt-2 { margin-top: 16px; }
.rfc-mt-3 { margin-top: 24px; }
.rfc-mt-4 { margin-top: 32px; }
.rfc-mb-0 { margin-bottom: 0; }
.rfc-mb-1 { margin-bottom: 8px; }
.rfc-mb-2 { margin-bottom: 16px; }
.rfc-mb-3 { margin-bottom: 24px; }
.rfc-mb-4 { margin-bottom: 32px; }
.rfc-hidden { display: none !important; }
.rfc-visible { display: block !important; }

/* ============================================
   Print Styles
   ============================================ */
@media print {
  .rfc-nav, .rfc-footer, .rfc-ad-slot, .rfc-sidebar {
    display: none !important;
  }
  .rfc-article-body {
    font-size: 12pt;
    line-height: 1.5;
  }
}

/* === Post Template V3.0 CSS Injection for rfc === */

.rfc-ad-slot {
  display: none;
  width: 100%;
  min-height: 250px;
  margin: 24px 0;
  background: #f5f5f5;
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  color: #999;
  font-size: 14px;
}
.rfc-ad-slot.has-content {
  display: flex;
}
.rfc-post-header {
  margin-bottom: 24px;
}
.rfc-post-header h1 {
  font-size: 2.2rem;
  line-height: 1.3;
  margin-bottom: 12px;
}
.rfc-post-meta {
  color: #666;
  font-size: 0.9rem;
  margin-bottom: 12px;
}
.rfc-category-badge {
  display: inline-block;
  padding: 4px 12px;
  background: #e8f0fe;
  color: #1a73e8;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 600;
}
.rfc-article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}
.rfc-post-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px;
}
.rfc-post-content {
  font-size: 1.05rem;
  line-height: 1.8;
  color: #333;
}
.rfc-post-content p {
  margin-bottom: 1.2em;
}
.rfc-post-content h2 {
  font-size: 1.6rem;
  margin-top: 2em;
  margin-bottom: 0.8em;
}
.rfc-post-content h3 {
  font-size: 1.3rem;
  margin-top: 1.6em;
  margin-bottom: 0.6em;
}
.rfc-post-footer {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 32px;
  max-width: 800px;
  margin: 40px auto 0;
  padding: 0 20px;
}
@media (max-width: 768px) {
  .rfc-post-footer {
    grid-template-columns: 1fr;
  }
}
.rfc-related-articles h3,
.rfc-recommended-tools h3 {
  font-size: 1.2rem;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid #eee;
}
.rfc-related-list,
.rfc-tool-rec-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.rfc-related-card {
  display: block;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  padding: 16px;
  background: #fff;
  border-radius: 8px;
  border: 1px solid #eee;
  transition: box-shadow 0.2s, transform 0.2s;
}
.rfc-related-card:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}
.rfc-related-card * {
  pointer-events: none;
}
.rfc-related-card h4 {
  font-size: 1rem;
  margin-bottom: 6px;
  color: #1a73e8;
}
.rfc-related-card p {
  font-size: 0.85rem;
  color: #666;
  margin: 0;
}
.rfc-author-box {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: #f8f9fa;
  border-radius: 12px;
  margin: 32px 0;
  align-items: flex-start;
}
@media (max-width: 768px) {
  .rfc-author-box {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}
.rfc-author-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}
.rfc-author-info {
  flex: 1;
}
.rfc-author-name {
  font-size: 1.1rem;
  margin-bottom: 4px;
}
.rfc-author-title {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 8px;
}
.rfc-author-bio {
  font-size: 0.95rem;
  line-height: 1.6;
  color: #444;
  margin-bottom: 8px;
}
.rfc-author-location {
  font-size: 0.85rem;
  color: #888;
  margin-bottom: 8px;
}
.rfc-author-bio-link {
  font-size: 0.9rem;
  color: #1a73e8;
  text-decoration: none;
}
.rfc-author-bio-link:hover {
  text-decoration: underline;
}


/* ---- Navigation Container Fix ---- */
.rfc-nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: var(--rfc-max-width, 1200px);
  margin: 0 auto;
  padding: 0 1.5rem;
  width: 100%;
  box-sizing: border-box;
}


/* ---- Breadcrumb Align Fix ---- */
.rfc-breadcrumb {
  max-width: var(--rfc-max-width, 1200px);
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  width: 100%;
  box-sizing: border-box;
}


/* ---- Mobile Menu Active Fix ---- */
@media (max-width: 768px) {
  .rfc-nav-links {
    display: none !important;
    flex-direction: column;
    width: 100%;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid #e5e7eb;
    padding: 1rem 1.5rem;
    gap: 0.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    z-index: 999;
  }
  .rfc-nav-links.active {
    display: flex !important;
  }
  .rfc-nav-links li {
    width: 100%;
    list-style: none;
  }
  .rfc-nav-links a {
    display: block;
    padding: 0.75rem 0;
    border-bottom: 1px solid #f0f0f0;
    text-decoration: none;
    color: inherit;
  }
  .rfc-nav-links a:last-child {
    border-bottom: none;
  }
}


/* ---- Hamburger Button Fix ---- */
.rfc-nav-hamburger {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
}
@media (max-width: 768px) {
  .rfc-nav-hamburger {
    display: block !important;
  }
}