/* ========================================
   CODICE FISCALE AI - EDITORIAL BLOG STYLE
   ======================================== */

:root {
  /* Primary Colors - Editorial Palette */
  --primary-dark: #1a1a2e;
  --primary-blue: #16213e;
  --accent-gold: #d4af37;
  --accent-coral: #ff6b6b;
  --accent-teal: #4ecdc4;
  
  /* Grays */
  --gray-50: #fafafa;
  --gray-100: #f5f5f5;
  --gray-200: #eeeeee;
  --gray-300: #e0e0e0;
  --gray-400: #bdbdbd;
  --gray-500: #9e9e9e;
  --gray-600: #757575;
  --gray-700: #616161;
  --gray-800: #424242;
  --gray-900: #212121;
  
  /* Semantic Colors */
  --success: #22c55e;
  --warning: #f59e0b;
  --error: #ef4444;
  --info: #3b82f6;
  
  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Crimson Pro', 'Georgia', serif;
  --font-ui: 'DM Sans', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
}

/* ========================================
   BASE STYLES
   ======================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-body);
  font-size: 1.125rem;
  line-height: 1.75;
  color: var(--gray-800);
  background: #ffffff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary-dark);
  margin-bottom: var(--space-md);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
  margin-bottom: var(--space-md);
}

.lead-paragraph {
  font-size: 1.25rem;
  line-height: 1.8;
  color: var(--gray-700);
  font-weight: 400;
}

a {
  color: var(--accent-coral);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--gray-100);
  padding: 0.2em 0.4em;
  border-radius: var(--radius-sm);
  color: var(--accent-coral);
}

strong {
  font-weight: 600;
  color: var(--gray-900);
}

em {
  font-style: italic;
  color: var(--accent-gold);
  font-weight: 500;
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  font-family: var(--font-display);
}

.logo-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--accent-coral), var(--accent-gold));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-weight: 900;
  font-size: 1.25rem;
  box-shadow: var(--shadow-md);
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--primary-dark);
  letter-spacing: -0.5px;
}

.main-nav {
  display: flex;
  gap: 2rem;
  font-family: var(--font-ui);
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--gray-700);
  text-decoration: none;
  transition: color var(--transition-base);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-coral);
  transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-coral);
  text-decoration: none;
}

.nav-link.active::after {
  width: 100%;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--gray-800);
  transition: all var(--transition-base);
}

/* ========================================
   HERO SECTIONS
   ======================================== */

.hero {
  position: relative;
  background:linear-gradient(135deg, #223caf 0%, #2d005abd 100%);
  padding: 5rem 2rem;
  overflow: hidden;
}

.hero-bg-pattern {
  position: absolute;
  inset: 0;
  background-image: 
    repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(255,255,255,.02) 10px, rgba(255,255,255,.02) 20px);
  opacity: 0.5;
}

.hero-content {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
  color: white;
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  padding: 0.5rem 1.5rem;
  border-radius: 50px;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-title {
  font-size: 4rem;
  font-weight: 900;
    color: white;
  margin-bottom: 1.5rem;
  line-height: 1.1;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.hero-title-accent {
  display: block;
  background: linear-gradient(to right, #ff8900, #ffffff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  font-family: var(--font-ui);
  line-height: 1.6;
  opacity: 0.95;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  margin-top: 3rem;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-num {
  font-size: 2.5rem;
  font-weight: 900;
  font-family: var(--font-display);
}

.stat-label {
  font-size: 0.875rem;
  font-family: var(--font-ui);
  opacity: 0.9;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 500;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.3);
}

/* Blog Hero */
.blog-hero {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  padding: 4rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.blog-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(255,255,255,.02) 10px, rgba(255,255,255,.02) 20px);
}

.blog-hero-content {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
}

.blog-hero-label {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent-gold);
  margin-bottom: 1rem;
  font-weight: 600;
}

.blog-hero-title {
  color: white;
  font-size: 3.5rem;
  margin-bottom: 1rem;
  line-height: 1.1;
}

.blog-hero-subtitle {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.25rem;
  line-height: 1.6;
  font-family: var(--font-ui);
}

/* ========================================
   MAIN LAYOUT
   ======================================== */

.main-wrapper {
  max-width: 1400px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: 3rem;
  align-items: start;
}

.primary-column {
  min-width: 0;
}

.sidebar {
  position: sticky;
  top: 100px;
}

/* ========================================
   CALCULATOR CARD
   ======================================== */

.calculator-card {
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: 2.5rem;
  margin-bottom: 3rem;
  border: 1px solid var(--gray-200);
}

.card-header {
  margin-bottom: 2rem;
  text-align: center;
}

.card-title {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  color: var(--primary-dark);
}

.card-subtitle {
  font-family: var(--font-ui);
  color: var(--gray-600);
  font-size: 1rem;
}

.form-body {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-row {
  display: grid;
  gap: 1.5rem;
}

.form-row.two-col {
  grid-template-columns: 1fr 1fr;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-label {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.required {
  color: var(--error);
}

.form-input,
.form-select {
  font-family: var(--font-ui);
  font-size: 1rem;
  padding: 0.875rem 1rem;
  border: 2px solid var(--gray-300);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  background: white;
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--accent-coral);
  box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.1);
}

.gender-toggle {
  display: flex;
  gap: 0.5rem;
}

.gender-btn {
  flex: 1;
  padding: 0.875rem;
  border: 2px solid var(--gray-300);
  background: white;
  border-radius: var(--radius-md);
  font-family: var(--font-ui);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
}

.gender-btn:hover {
  border-color: var(--accent-coral);
}

.gender-btn.active {
  background: var(--accent-coral);
  color: white;
  border-color: var(--accent-coral);
}

.date-select-row {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: 0.5rem;
}

.suggestions-list {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: white;
  border: 2px solid var(--gray-300);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  max-height: 200px;
  overflow-y: auto;
  z-index: 100;
  display: none;
}

.btn-calculate {
  margin-top: 1rem;
  padding: 1.25rem 2rem;
  background: linear-gradient(135deg, var(--accent-coral), #ff8787);
  color: white;
  border: none;
  border-radius: var(--radius-lg);
  font-family: var(--font-ui);
  font-size: 1.125rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.btn-calculate:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.btn-icon {
  font-size: 1.5rem;
}

.result-box {
  margin-top: 2rem;
  padding: 2rem;
  background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
  border-radius: var(--radius-lg);
  text-align: center;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-dark);
  border: 2px solid var(--success);
}

/* ========================================
   BLOG CARDS & LISTINGS
   ======================================== */

.featured-posts-section {
  margin: 3rem 0;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--gray-200);
}

.section-title {
  font-size: 2rem;
  margin: 0;
}

.section-link {
  font-family: var(--font-ui);
  font-weight: 600;
  color: var(--accent-coral);
  text-decoration: none;
  transition: all var(--transition-base);
}

.section-link:hover {
  transform: translateX(5px);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.blog-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  border: 1px solid var(--gray-200);
}

.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.blog-card--featured {
  grid-column: 1 / -1;
}

.blog-card--hero {
  grid-column: 1 / -1;
/*  display: grid;*/
  grid-template-columns: 1.2fr 1fr;
  gap: 0;
  margin-bottom: 3rem;
}

.blog-card-link {
  text-decoration: none;
  color: inherit;
  display: block;
  height: 100%;
}

.blog-card-image {
  height: 200px;
  background-size: cover;
  background-position: center;
  position: relative;
}

.blog-card--featured .blog-card-image {
  height: 250px;
}

.blog-card--hero .blog-card-image {
  height: 100%;
}

.blog-card-image--large {
  height: 100%;
  min-height: 400px;
}

.blog-featured-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.blog-card-content {
  padding: 1.75rem;
}

.blog-card-meta {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

.blog-category {
  color: var(--accent-coral);
}

.blog-date,
.blog-author {
  color: var(--gray-500);
}

.blog-card-title {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  line-height: 1.3;
  color: var(--primary-dark);
}

.blog-card-title--large {
  font-size: 2.25rem;
  margin-bottom: 1rem;
}

.blog-card-excerpt {
  font-family: var(--font-ui);
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--gray-700);
  margin-bottom: 1rem;
}

.blog-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  padding-top: 1rem;
  border-top: 1px solid var(--gray-200);
}

.read-time {
  color: var(--gray-600);
}

.read-more {
  color: var(--accent-coral);
  font-weight: 600;
}

/* Blog Listing Grid */
.blog-listing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

/* Blog Filter Bar */
.blog-filter-bar {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
  padding: 1.5rem;
  background: var(--gray-100);
  border-radius: var(--radius-lg);
}

.filter-btn {
  padding: 0.625rem 1.25rem;
  background: white;
  border: 2px solid var(--gray-300);
  border-radius: 50px;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
}

.filter-btn:hover {
  border-color: var(--accent-coral);
  color: var(--accent-coral);
}

.filter-btn.active {
  background: var(--accent-coral);
  color: white;
  border-color: var(--accent-coral);
}

/* Load More */
.load-more-section {
  text-align: center;
  margin: 3rem 0;
}

.btn-load-more {
  padding: 1rem 2.5rem;
  background: var(--primary-dark);
  color: white;
  border: none;
  border-radius: var(--radius-lg);
  font-family: var(--font-ui);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  margin-bottom: 1rem;
}

.btn-load-more:hover {
  background: var(--accent-coral);
  transform: translateY(-2px);
}

.load-more-info {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--gray-600);
}

/* ========================================
   CONTENT CARDS
   ======================================== */

.content-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  margin-bottom: 3rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--gray-200);
}

.article-meta {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  font-family: var(--font-ui);
  font-size: 0.875rem;
}

.article-tag {
  background: var(--accent-coral);
  color: white;
  padding: 0.375rem 0.875rem;
  border-radius: 50px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.article-read-time {
  color: var(--gray-600);
  display: flex;
  align-items: center;
}

.content-title {
  font-size: 2.25rem;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.content-body {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--gray-700);
}

.content-body h3 {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  font-size: 1.75rem;
  color: var(--primary-dark);
}

.content-list {
  margin: 1.5rem 0;
  padding-left: 1.5rem;
}

.content-list li {
  margin-bottom: 0.75rem;
  line-height: 1.7;
}

.content-cta {
  background: linear-gradient(135deg, #fff5e6, #ffe0b3);
  border-left: 4px solid var(--accent-gold);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  margin: 2rem 0;
  font-family: var(--font-ui);
}

.content-cta p {
  margin: 0;
}

.content-cta a {
  font-weight: 600;
  color: var(--accent-coral);
}

/* Info Boxes */
.info-box {
  display: flex;
  gap: 1rem;
  padding: 1.5rem;
  background: linear-gradient(135deg, #e3f2fd, #bbdefb);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--info);
  margin: 2rem 0;
}

.info-box--tip {
  background: linear-gradient(135deg, #f3e5f5, #e1bee7);
  border-left-color: #9c27b0;
}

.info-box--warning {
  background: linear-gradient(135deg, #fff8e1, #ffecb3);
  border-left-color: var(--warning);
}

.info-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

/* CF Structure Visual */
.cf-structure-visual {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin: 2rem 0;
  flex-wrap: wrap;
}

.cf-block {
  background: var(--block-color, var(--gray-300));
  color: white;
  padding: 1.5rem 1rem;
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  text-align: center;
  position: relative;
  min-width: 80px;
  box-shadow: var(--shadow-md);
}

.cf-block::before {
  content: attr(data-label);
  position: absolute;
  top: -24px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
  color: var(--gray-700);
}

/* Month Table */
.month-table-wrapper {
  overflow-x: auto;
  margin: 2rem 0;
}

.month-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-ui);
}

.month-table thead {
  background: var(--gray-100);
}

.month-table th {
  padding: 1rem;
  text-align: left;
  font-weight: 700;
  color: var(--gray-800);
  border-bottom: 2px solid var(--gray-300);
}

.month-table td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--gray-200);
}

.month-code {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-coral);
  font-size: 1.125rem;
}

/* Feature Grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.feature-item {
  padding: 1.5rem;
  background: var(--gray-50);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  text-align: center;
}

.feature-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 0.75rem;
}

.feature-item strong {
  display: block;
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
  color: var(--primary-dark);
}

.feature-item p {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--gray-600);
  margin: 0;
}

/* CTA Banner */
.cta-banner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-blue));
  color: white;
  border-radius: var(--radius-lg);
  margin: 2rem 0;
}

.cta-banner span {
  font-size: 1.25rem;
  font-weight: 600;
}

.cta-btn {
  padding: 0.875rem 2rem;
  background: var(--accent-coral);
  color: white;
  border-radius: var(--radius-md);
  font-weight: 700;
  text-decoration: none;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
}

/* Related Articles */
.related-articles {
  background: var(--gray-50);
  padding: 2rem;
  border-radius: var(--radius-lg);
  margin: 3rem 0;
}

.related-title {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.related-grid {
  display: grid;
  gap: 1rem;
}

.related-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  background: white;
  border-radius: var(--radius-md);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-base);
  border: 1px solid var(--gray-200);
}

.related-card:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.related-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.related-card h4 {
  font-size: 1.125rem;
  margin: 0 0 0.25rem 0;
  color: var(--primary-dark);
}

.related-card p {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--gray-600);
  margin: 0;
}

/* Newsletter Card */
.newsletter-card {
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  padding: 3rem;
  border-radius: var(--radius-xl);
  text-align: center;
  margin: 3rem 0;
  box-shadow: var(--shadow-xl);
}

.newsletter-card--blog {
  margin: 4rem 0;
}

.newsletter-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.newsletter-card h3 {
  font-size: 2rem;
  color: white;
  margin-bottom: 0.75rem;
}

.newsletter-card p {
  font-family: var(--font-ui);
  opacity: 0.9;
  margin-bottom: 2rem;
  font-size: 1.125rem;
}

.newsletter-form {
  display: flex;
  gap: 0.75rem;
  max-width: 500px;
  margin: 0 auto 1rem;
}

.newsletter-input {
  flex: 1;
  padding: 1rem;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  color: white;
  font-family: var(--font-ui);
  font-size: 1rem;
}

.newsletter-input::placeholder {
  color: rgba(255, 255, 255, 0.7);
}

.newsletter-input:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.5);
}

.newsletter-btn {
  padding: 1rem 2rem;
  background: white;
  color: var(--primary-dark);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-ui);
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-base);
}

.newsletter-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.newsletter-disclaimer {
  font-size: 0.875rem;
  opacity: 0.8;
  margin: 0;
}

/* ========================================
   FAQ
   ======================================== */

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

.faq-item {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  background: white;
  border: none;
  font-family: var(--font-ui);
  font-size: 1.125rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: all var(--transition-base);
  color: var(--primary-dark);
}

.faq-question:hover {
  background: var(--gray-50);
}

.faq-arrow {
  transition: transform var(--transition-base);
  color: var(--accent-coral);
  font-size: 0.875rem;
}

.faq-question[aria-expanded="true"] .faq-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: all var(--transition-base);
  background: var(--gray-50);
}

.faq-question[aria-expanded="true"] + .faq-answer {
  max-height: 500px;
  padding: 1.5rem;
}

.faq-answer p {
  margin: 0;
  font-family: var(--font-ui);
  line-height: 1.7;
  color: var(--gray-700);
}

/* ========================================
   SIDEBAR
   ======================================== */

.sidebar-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--gray-200);
}

.sidebar-card--accent {
  background: linear-gradient(135deg, #fff7ed, #fed7aa);
  border-color: var(--accent-gold);
}

.sidebar-card-title {
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
  color: var(--primary-dark);
}

.sidebar-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.sidebar-links a {
  font-family: var(--font-ui);
  color: var(--gray-700);
  text-decoration: none;
  transition: all var(--transition-base);
  display: block;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
}

.sidebar-links a:hover {
  background: var(--gray-100);
  color: var(--accent-coral);
  transform: translateX(5px);
  text-decoration: none;
}

.sidebar-text {
  font-family: var(--font-ui);
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--gray-700);
  margin: 0;
}

.mini-month-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  font-family: var(--font-ui);
  font-size: 0.875rem;
}

.mini-month-grid span {
  padding: 0.5rem;
  background: var(--gray-50);
  border-radius: var(--radius-sm);
}

.mini-month-grid code {
  color: var(--accent-coral);
  font-weight: 700;
  background: none;
  padding: 0;
}

.cf-stats {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.cf-stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-ui);
  padding: 0.75rem;
  background: var(--gray-50);
  border-radius: var(--radius-sm);
}

.cf-stat-row span {
  color: var(--gray-700);
  font-size: 0.875rem;
}

.cf-stat-row strong {
  color: var(--accent-coral);
  font-size: 1.125rem;
}

/* Popular Posts */
.popular-posts {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.popular-post-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--gray-50);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-base);
}

.popular-post-item:hover {
  background: var(--gray-100);
  transform: translateX(5px);
  text-decoration: none;
}

.popular-post-number {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-coral);
  color: white;
  border-radius: 50%;
  font-family: var(--font-display);
  font-weight: 700;
  flex-shrink: 0;
}

.popular-post-item h4 {
  font-size: 1rem;
  margin: 0 0 0.25rem 0;
  color: var(--primary-dark);
}

.popular-post-meta {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--gray-600);
}

/* Sidebar Categories */
.sidebar-category-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.sidebar-category-list a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem;
  background: var(--gray-50);
  border-radius: var(--radius-sm);
  font-family: var(--font-ui);
  text-decoration: none;
  color: var(--gray-700);
  transition: all var(--transition-base);
}

.sidebar-category-list a:hover {
  background: var(--gray-100);
  color: var(--accent-coral);
  text-decoration: none;
}

.category-count {
  background: var(--accent-coral);
  color: white;
  padding: 0.25rem 0.625rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
}

/* Blog Search */
.blog-search-form {
  display: flex;
  gap: 0.5rem;
}

.blog-search-input {
  flex: 1;
  padding: 0.75rem;
  border: 2px solid var(--gray-300);
  border-radius: var(--radius-md);
  font-family: var(--font-ui);
  font-size: 0.875rem;
}

.blog-search-input:focus {
  outline: none;
  border-color: var(--accent-coral);
}

.blog-search-btn {
  padding: 0.75rem 1.25rem;
  background: var(--accent-coral);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-ui);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
}

.blog-search-btn:hover {
  background: var(--primary-dark);
}

/* Tags Cloud */
.tags-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-item {
  padding: 0.5rem 1rem;
  background: var(--gray-100);
  border-radius: 50px;
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  text-decoration: none;
  color: var(--gray-700);
  transition: all var(--transition-base);
  border: 1px solid var(--gray-200);
}

.tag-item:hover {
  background: var(--accent-coral);
  color: white;
  border-color: var(--accent-coral);
  text-decoration: none;
}

/* Topic Tags */
.topic-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.topic-tag {
  padding: 0.5rem 1rem;
  background: white;
  border: 2px solid var(--gray-300);
  border-radius: 50px;
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--gray-700);
  transition: all var(--transition-base);
}

.topic-tag:hover {
  background: var(--accent-coral);
  color: white;
  border-color: var(--accent-coral);
  text-decoration: none;
}

/* Quick Tools */
.quick-tools {
  display: grid;
  gap: 0.75rem;
}

.quick-tool-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  background: white;
  border: 2px solid var(--gray-300);
  border-radius: var(--radius-md);
  font-family: var(--font-ui);
  font-weight: 600;
  text-decoration: none;
  color: var(--gray-700);
  transition: all var(--transition-base);
}

.quick-tool-btn:hover {
  background: var(--accent-coral);
  color: white;
  border-color: var(--accent-coral);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.quick-tool-icon {
  font-size: 1.5rem;
}

/* ========================================
   AD SLOTS
   ======================================== */

.ad-slot {
  background: var(--gray-100);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  border: 1px dashed var(--gray-300);
}

.ad-slot--horizontal {
  height: 250px;
  margin: 3rem 0;
}

.ad-slot--sidebar {
  height: 600px;
  margin-bottom: 2rem;
}

.ad-label {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ========================================
   FOOTER
   ======================================== */

.site-footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 4rem 2rem 2rem;
  margin-top: 5rem;
}

.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand .logo {
  margin-bottom: 1rem;
}

.logo--footer .logo-icon {
  background: linear-gradient(135deg, white, var(--gray-200));
  color: var(--primary-dark);
}

.logo--footer .logo-text {
  color: white;
}

.footer-tagline {
  font-family: var(--font-ui);
  font-size: 0.95rem;
  line-height: 1.6;
  opacity: 0.8;
  margin: 0;
}

.footer-links-group h4 {
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 700;
  color: white;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-links-group ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links-group a {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color var(--transition-base);
}

.footer-links-group a:hover {
  color: var(--accent-coral);
  text-decoration: none;
}

.footer-bottom {
  max-width: 1400px;
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-family: var(--font-ui);
  font-size: 0.875rem;
}

.footer-bottom p {
  margin: 0.5rem 0;
}

.footer-disclaimer {
  opacity: 0.6;
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 1024px) {
  .content-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  
  .sidebar-card {
    margin-bottom: 0;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .stat-divider {
    display: none;
  }
  
  .main-nav {
    position: fixed;
    top: 0;
    left: -100%;
    width: 80%;
    height: 100vh;
    background: white;
    flex-direction: column;
    padding: 5rem 2rem;
    box-shadow: var(--shadow-xl);
    transition: left var(--transition-base);
    z-index: 999;
  }
  
  .main-nav.active {
    left: 0;
  }
  
  .hamburger {
    display: flex;
    z-index: 1000;
  }
  
  .form-row.two-col {
    grid-template-columns: 1fr;
  }
  
  .date-select-row {
    grid-template-columns: 1fr;
  }
  
  .blog-grid,
  .blog-listing-grid {
    grid-template-columns: 1fr;
  }
  
  .blog-card--hero {
    grid-template-columns: 1fr;
  }
  
  .blog-card-image--large {
    min-height: 250px;
  }
  
  .sidebar {
    grid-template-columns: 1fr;
  }
  
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .newsletter-form {
    flex-direction: column;
  }
  
  .blog-hero-title {
    font-size: 2.5rem;
  }
  
  .blog-filter-bar {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  
  .hero {
    padding: 3rem 1rem;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .main-wrapper {
    padding: 2rem 1rem;
  }
  
  .calculator-card,
  .content-card {
    padding: 1.5rem;
  }
  
  .cf-structure-visual {
    gap: 0.25rem;
  }
  
  .cf-block {
    min-width: 60px;
    padding: 1rem 0.5rem;
    font-size: 1.25rem;
  }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }