/* ===========================
   ChurnZap Website Styles
   Following Brand Guide v2.0
   =========================== */

/* CSS Variables - Design System */
:root {
  /* Brand Colors - Primary Palette */
  --color-purple: #8B5CF6;
  --color-navy: #1E293B;
  --color-cyan: #06B6D4;

  /* New Refined Palette */
  --violet-600: #7C3AED;
  --violet-500: #8B5CF6;
  --violet-200: #DDD6FE;
  --violet-100: #EDE9FE;
  --violet-50: #F5F3FF;
  --teal-500: #14B8A6;
  --teal-100: #CCFBF1;
  --teal-50: #F0FDFA;
  --amber-500: #F59E0B;
  --amber-50: #FFFBEB;
  --slate-900: #0F172A;
  --slate-800: #1E293B;
  --slate-700: #334155;
  --slate-500: #64748B;
  --slate-400: #94A3B8;
  --slate-300: #CBD5E1;
  --slate-200: #E2E8F0;
  --slate-100: #F1F5F9;
  --slate-50: #F8FAFC;

  /* Neutrals (legacy support) */
  --color-gray: #9CA3AF;
  --color-white: #FFFFFF;
  --color-black: #111827;
  --color-border: #E5E7EB;
  --color-light-bg: #F3F4F6;

  /* Semantic Colors */
  --color-primary: var(--color-purple);
  --color-text: var(--color-black);
  --color-text-muted: var(--color-gray);
  --color-background: var(--color-white);

  /* Success/Alert */
  --color-success: #10B981;
  --color-purple-light: #F5F3FF;
  --color-purple-dark: #7C3AED;
  --color-dark-purple-bg: #5B21B6;

  /* Font Families - Updated */
  --font-display: 'Cabinet Grotesk', 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Instrument Sans', 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Font Sizes */
  --text-h1: 56px;
  --text-h2: 40px;
  --text-h3: 28px;
  --text-h4: 20px;
  --text-h5: 18px;
  --text-body-lg: 18px;
  --text-body: 16px;
  --text-body-sm: 14px;
  --text-caption: 13px;

  /* Font Weights */
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-extrabold: 800;

  /* Line Heights */
  --leading-tight: 1.1;
  --leading-snug: 1.3;
  --leading-normal: 1.5;
  --leading-relaxed: 1.6;

  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-2xl: 64px;
  --spacing-3xl: 96px;
}

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-weight: var(--weight-regular);
  font-size: var(--text-body);
  line-height: var(--leading-relaxed);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography - From Brand Guide Section 3 */
h1, .h1 {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: var(--text-h1);
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
  color: var(--color-navy);
}

h2, .h2 {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: var(--text-h2);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--color-navy);
}

h3, .h3 {
  font-family: var(--font-display);
  font-weight: var(--weight-semibold);
  font-size: var(--text-h3);
  line-height: var(--leading-snug);
  color: var(--color-navy);
}

h4, .h4 {
  font-family: var(--font-body);
  font-weight: var(--weight-semibold);
  font-size: var(--text-h4);
  line-height: 1.4;
  color: var(--color-navy);
}

h5, .h5 {
  font-family: var(--font-body);
  font-weight: var(--weight-semibold);
  font-size: var(--text-h5);
  line-height: 1.4;
  color: var(--color-navy);
}

p {
  font-family: var(--font-body);
  font-weight: var(--weight-regular);
  font-size: var(--text-body);
  line-height: var(--leading-relaxed);
  color: var(--color-text);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Navigation */
.nav {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-sm) 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: 24px;
  color: var(--color-purple);
  text-decoration: none;
  transition: opacity 0.2s ease;
  display: inline-block;
}

.logo:hover {
  opacity: 0.85;
}

.logo-image {
  height: 32px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-links a {
  font-family: var(--font-body);
  font-weight: var(--weight-medium);
  font-size: var(--text-body);
  color: var(--color-navy);
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav-links .btn-secondary-small {
  color: var(--color-white);
}

.nav-links a:hover {
  color: var(--color-purple);
}

.nav-links .btn-secondary-small:hover {
  color: var(--color-white);
}

/* Buttons - From Brand Guide Examples */
.btn-primary {
  display: inline-block;
  background: var(--color-purple);
  color: var(--color-white);
  font-family: var(--font-body);
  font-weight: var(--weight-medium);
  font-size: var(--text-body);
  padding: 16px 32px;
  border-radius: 8px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.1s ease;
  letter-spacing: 0.01em;
}

.btn-primary:hover {
  background: var(--color-purple-dark);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  display: inline-block;
  background: var(--color-white);
  color: var(--color-purple);
  font-family: var(--font-body);
  font-weight: var(--weight-medium);
  font-size: var(--text-body);
  padding: 16px 32px;
  border-radius: 8px;
  text-decoration: none;
  border: 2px solid var(--color-purple);
  cursor: pointer;
  transition: background 0.2s ease, transform 0.1s ease;
  letter-spacing: 0.01em;
}

.btn-secondary:hover {
  background: var(--color-purple-light);
  transform: translateY(-1px);
}

.btn-secondary-small {
  display: inline-block;
  background: var(--color-purple);
  color: var(--color-white);
  font-family: var(--font-body);
  font-weight: var(--weight-medium);
  font-size: var(--text-body-sm);
  padding: 10px 20px;
  border-radius: 6px;
  text-decoration: none;
  border: none;
  transition: background 0.2s ease;
}

.btn-secondary-small:hover {
  background: var(--color-purple-dark);
}

.btn-full {
  width: 100%;
}

/* Hero Section - From Brand Guide Example 1 */
.hero {
  background: var(--color-white);
  padding: var(--spacing-3xl) 0;
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  margin-bottom: var(--spacing-md);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.badge-text {
  font-family: var(--font-body);
  font-size: var(--text-body-sm);
  font-weight: var(--weight-medium);
  color: var(--color-purple);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  display: block;
  margin-bottom: var(--spacing-sm);
}

.hero-title {
  display: block;
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: var(--text-h1);
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
  color: var(--color-navy);
  margin-bottom: var(--spacing-md);
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-purple) 0%, var(--color-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subheadline {
  font-size: var(--text-h4);
  line-height: var(--leading-relaxed);
  color: var(--color-black);
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  margin-bottom: var(--spacing-2xl);
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: var(--spacing-xl);
  justify-content: center;
  margin-top: var(--spacing-2xl);
  flex-wrap: wrap;
}

.stat {
  text-align: center;
}

.stat-number {
  font-family: var(--font-body);
  font-weight: var(--weight-bold);
  font-size: 48px;
  color: var(--color-purple);
  line-height: 1;
}

.stat-label {
  font-size: var(--text-body-sm);
  color: var(--color-gray);
  margin-top: var(--spacing-xs);
}

/* Problem Section */
.problem {
  background: var(--color-light-bg);
  padding: var(--spacing-3xl) 0;
  text-align: center;
}

.problem h2 {
  margin-bottom: var(--spacing-sm);
}

.section-intro {
  font-size: var(--text-body-lg);
  line-height: var(--leading-relaxed);
  color: var(--color-text);
  max-width: 680px;
  margin: 0 auto var(--spacing-xl) auto;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  max-width: 900px;
  margin: 0 auto;
}

.problem-card {
  background: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: 12px;
  border: 1px solid var(--color-border);
  text-align: left;
}

.problem-card.highlight {
  border: 2px solid var(--color-purple);
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.15);
}

.problem-icon {
  font-size: 40px;
  margin-bottom: var(--spacing-sm);
}

.problem-card h3 {
  margin-bottom: var(--spacing-sm);
  font-size: var(--text-h4);
}

.problem-card p {
  color: var(--color-text);
}

/* Features Section */
.features {
  background: var(--color-white);
  padding: var(--spacing-3xl) 0;
  text-align: center;
}

.features h2 {
  margin-bottom: var(--spacing-sm);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.feature-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: var(--spacing-lg);
  text-align: left;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.feature-number {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: 48px;
  color: var(--color-purple);
  opacity: 0.2;
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
  margin-bottom: var(--spacing-sm);
  font-size: var(--text-h4);
}

.feature-card p {
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}

.feature-list {
  list-style: none;
  margin-top: var(--spacing-sm);
}

.feature-list li {
  font-size: var(--text-body-sm);
  color: var(--color-gray);
  padding-left: 24px;
  position: relative;
  margin-bottom: 6px;
}

.feature-list li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-purple);
  font-weight: var(--weight-bold);
}

/* How It Works Section */
.how-it-works {
  background: var(--color-navy);
  padding: var(--spacing-3xl) 0;
  text-align: center;
  color: var(--color-white);
}

.how-it-works h2 {
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
}

.how-it-works .section-intro {
  color: var(--color-light-bg);
}

.steps {
  max-width: 800px;
  margin: var(--spacing-xl) auto 0;
  text-align: left;
}

.step {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
  align-items: flex-start;
}

.step-number {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: 72px;
  color: var(--color-purple);
  line-height: 1;
  min-width: 80px;
}

.step-content h3 {
  color: var(--color-white);
  margin-bottom: var(--spacing-xs);
}

.step-content p {
  color: var(--color-light-bg);
  line-height: var(--leading-relaxed);
}

/* Target Audience Section */
.target-audience {
  background: var(--color-white);
  padding: var(--spacing-3xl) 0;
  text-align: center;
}

.target-audience h2 {
  margin-bottom: var(--spacing-xl);
}

.audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  max-width: 1000px;
  margin: 0 auto;
}

.audience-card {
  background: var(--color-light-bg);
  padding: var(--spacing-lg);
  border-radius: 12px;
  text-align: left;
}

.audience-card h4 {
  color: var(--color-purple);
  margin-bottom: var(--spacing-sm);
}

.audience-card p {
  color: var(--color-text);
}

/* Social Proof Section */
.social-proof {
  background: var(--color-purple);
  padding: var(--spacing-3xl) 0;
  text-align: center;
  color: var(--color-white);
}

.social-proof h2 {
  color: var(--color-white);
  margin-bottom: var(--spacing-xl);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  max-width: 1000px;
  margin: 0 auto;
}

.stat-card {
  text-align: center;
}

.stat-large {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: 64px;
  color: var(--color-white);
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.stat-card p {
  color: var(--color-white);
  font-size: var(--text-body-lg);
  line-height: var(--leading-relaxed);
}

/* Waitlist Section */
.waitlist {
  background: var(--color-white);
  padding: var(--spacing-3xl) 0;
}

.waitlist-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-2xl);
  align-items: start;
}

.waitlist-text h2 {
  margin-bottom: var(--spacing-sm);
}

.waitlist-text p {
  font-size: var(--text-body-lg);
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
}

.waitlist-benefits {
  list-style: none;
  margin-top: var(--spacing-md);
}

.waitlist-benefits li {
  font-size: var(--text-body);
  color: var(--color-text);
  padding-left: 32px;
  position: relative;
  margin-bottom: var(--spacing-xs);
  line-height: var(--leading-relaxed);
}

.waitlist-benefits li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-purple);
  font-weight: var(--weight-bold);
  font-size: 20px;
}

/* Form Styles - From Brand Guide Example 4 */
.waitlist-form-container {
  background: var(--color-light-bg);
  padding: var(--spacing-lg);
  border-radius: 12px;
}

.waitlist-form {
  max-width: 500px;
}

.form-group {
  margin-bottom: var(--spacing-md);
  text-align: left;
}

.form-group label {
  display: block;
  font-family: var(--font-body);
  font-weight: var(--weight-medium);
  font-size: var(--text-body-sm);
  color: var(--color-navy);
  margin-bottom: var(--spacing-xs);
  letter-spacing: 0.01em;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-weight: var(--weight-regular);
  font-size: var(--text-body);
  color: var(--color-black);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border: 2px solid var(--color-purple);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
  padding: 11px 15px; /* Adjust for border increase */
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-gray);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.form-footer {
  font-size: var(--text-caption);
  color: var(--color-gray);
  text-align: center;
  margin-top: var(--spacing-sm);
}

/* Footer */
.footer {
  background: var(--color-navy);
  padding: var(--spacing-2xl) 0 var(--spacing-md) 0;
  color: var(--color-white);
}

.footer-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-lg);
}

.footer-brand .logo {
  color: var(--color-white);
  margin-bottom: var(--spacing-xs);
}

.footer-brand .logo:hover {
  color: var(--color-purple);
}

.footer-brand p {
  color: var(--color-gray);
  font-size: var(--text-body-sm);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.footer-column h5 {
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
  font-size: var(--text-body);
}

.footer-column a {
  display: block;
  color: var(--color-gray);
  text-decoration: none;
  font-size: var(--text-body-sm);
  margin-bottom: 8px;
  transition: color 0.2s ease;
}

.footer-column a:hover {
  color: var(--color-purple);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  text-align: center;
}

.footer-bottom p {
  color: var(--color-gray);
  font-size: var(--text-body-sm);
}

.footer-credit {
  margin-top: var(--spacing-xs);
}

.footer-credit a {
  color: var(--color-purple);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-credit a:hover {
  color: var(--color-white);
  text-decoration: underline;
}

/* Responsive Design - From Brand Guide Section 3 */
@media (max-width: 768px) {
  :root {
    --text-h1: 40px;
    --text-h2: 32px;
    --text-h3: 24px;
  }

  .nav-links {
    gap: var(--spacing-sm);
  }

  .nav-links a {
    font-size: var(--text-body-sm);
  }

  .hero {
    padding: var(--spacing-2xl) 0;
  }

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-stats {
    gap: var(--spacing-md);
  }

  .features-grid,
  .audience-grid {
    grid-template-columns: 1fr;
  }

  .waitlist-content {
    grid-template-columns: 1fr;
  }

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

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

  .stats-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
}

@media (max-width: 480px) {
  :root {
    --text-h1: 32px;
    --text-h2: 28px;
    --text-h3: 22px;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }

  .btn-primary,
  .btn-secondary {
    padding: 14px 24px;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .problem-grid {
    grid-template-columns: 1fr;
  }

  .step {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .step-number {
    font-size: 48px;
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}

/* Focus visible for keyboard navigation */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-purple);
  outline-offset: 2px;
}

/* ===========================
   BLOG STYLES - New Design System
   =========================== */

/* Blog Header */
.blog-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--slate-200);
}

.blog-header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.blog-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 24px;
  color: var(--slate-900);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.blog-logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--violet-600), var(--teal-500));
  border-radius: 6px;
}

.blog-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.blog-nav-link {
  font-weight: 500;
  font-size: 15px;
  color: var(--slate-700);
  text-decoration: none;
  transition: color 0.15s;
}

.blog-nav-link:hover,
.blog-nav-link.active {
  color: var(--violet-600);
}

.blog-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Blog Buttons */
.btn-blog {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  padding: 12px 20px;
  border-radius: 9999px;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-blog-ghost {
  background: transparent;
  color: var(--slate-700);
}

.btn-blog-ghost:hover {
  background: var(--slate-100);
}

.btn-blog-primary {
  background: var(--violet-600);
  color: var(--color-white);
  box-shadow: 0 2px 8px rgba(124, 58, 237, 0.25);
}

.btn-blog-primary:hover {
  background: var(--violet-500);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.3);
}

/* Blog Hero */
.blog-hero {
  background: linear-gradient(180deg, var(--violet-50) 0%, var(--color-white) 100%);
  padding: 80px 24px 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.blog-hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.blog-hero-content {
  max-width: 680px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.blog-hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--violet-600);
  background: var(--color-white);
  padding: 8px 16px;
  border-radius: 9999px;
  margin-bottom: 24px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.blog-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.1;
  color: var(--slate-900);
  margin-bottom: 20px;
}

.blog-hero p {
  font-size: 19px;
  color: var(--slate-500);
  max-width: 540px;
  margin: 0 auto;
}

/* Search & Filters */
.blog-search-filters {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  transform: translateY(-32px);
}

.blog-search-bar {
  background: var(--color-white);
  border-radius: 16px;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.12);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.blog-search-icon {
  color: var(--slate-500);
  flex-shrink: 0;
}

.blog-search-input {
  flex: 1;
  font-family: var(--font-body);
  font-size: 16px;
  border: none;
  outline: none;
  background: transparent;
  color: var(--slate-900);
}

.blog-search-input::placeholder {
  color: var(--slate-400);
}

.blog-filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
  justify-content: center;
}

.blog-filter-pill {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  padding: 8px 16px;
  border-radius: 9999px;
  border: 1px solid var(--slate-200);
  background: var(--color-white);
  color: var(--slate-700);
  cursor: pointer;
  transition: all 0.15s;
}

.blog-filter-pill:hover {
  border-color: var(--violet-500);
  color: var(--violet-600);
}

.blog-filter-pill.active {
  background: var(--violet-600);
  border-color: var(--violet-600);
  color: var(--color-white);
}

/* Featured Post */
.blog-featured {
  max-width: 1280px;
  margin: 0 auto;
  padding: 48px 24px;
}

.blog-featured-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  background: var(--slate-50);
  border-radius: 16px;
  overflow: hidden;
  transition: box-shadow 0.3s;
}

.blog-featured-card:hover {
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.12);
}

.blog-featured-image {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--violet-100) 0%, var(--teal-50) 100%);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.blog-featured-image-icon {
  font-size: 64px;
  opacity: 0.5;
}

.blog-featured-content {
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.blog-featured-tag {
  display: inline-flex;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--violet-600);
  background: var(--violet-50);
  padding: 4px 12px;
  border-radius: 6px;
  margin-bottom: 16px;
  width: fit-content;
}

.blog-featured-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 32px;
  line-height: 1.2;
  color: var(--slate-900);
  margin-bottom: 16px;
  text-decoration: none;
}

.blog-featured-title:hover {
  color: var(--violet-600);
}

.blog-featured-excerpt {
  font-size: 17px;
  color: var(--slate-500);
  margin-bottom: 24px;
  line-height: 1.7;
}

.blog-featured-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 14px;
  color: var(--slate-500);
}

.blog-meta-author {
  display: flex;
  align-items: center;
  gap: 8px;
}

.blog-author-avatar {
  width: 32px;
  height: 32px;
  border-radius: 9999px;
  background: linear-gradient(135deg, var(--violet-500), var(--teal-500));
}

.blog-meta-divider {
  width: 4px;
  height: 4px;
  border-radius: 9999px;
  background: var(--slate-300);
}

/* Posts Grid */
.blog-posts-section {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.blog-posts-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}

.blog-posts-header h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 28px;
  color: var(--slate-900);
}

.blog-posts-count {
  font-size: 14px;
  color: var(--slate-500);
}

.blog-posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

/* Post Card */
.blog-post-card {
  background: var(--color-white);
  border: 1px solid var(--slate-200);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.25s ease;
}

.blog-post-card:hover {
  border-color: var(--violet-200);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.08);
  transform: translateY(-4px);
}

.blog-post-image {
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, var(--slate-100) 0%, var(--slate-50) 100%);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.blog-post-image-icon {
  font-size: 32px;
  opacity: 0.4;
}

.blog-post-content {
  padding: 24px;
}

.blog-post-tag {
  display: inline-flex;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--teal-500);
  background: var(--teal-50);
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: 12px;
}

.blog-post-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 20px;
  line-height: 1.3;
  color: var(--slate-900);
  margin-bottom: 12px;
  text-decoration: none;
  display: block;
}

.blog-post-title:hover {
  color: var(--violet-600);
}

.blog-post-excerpt {
  font-size: 15px;
  color: var(--slate-500);
  line-height: 1.6;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-post-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--slate-500);
}

/* Sidebar */
.blog-content-with-sidebar {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px 80px;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
}

.blog-sidebar {
  position: sticky;
  top: 100px;
  height: fit-content;
}

.blog-sidebar-block {
  background: var(--slate-50);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 24px;
}

.blog-sidebar-block h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--slate-900);
  margin-bottom: 16px;
}

.blog-popular-list {
  list-style: none;
}

.blog-popular-item {
  padding: 12px 0;
  border-bottom: 1px solid var(--slate-200);
}

.blog-popular-item:last-child {
  border-bottom: none;
}

.blog-popular-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--slate-700);
  text-decoration: none;
  transition: color 0.15s;
}

.blog-popular-link:hover {
  color: var(--violet-600);
}

.blog-category-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.blog-category-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 14px;
  color: var(--slate-700);
  text-decoration: none;
  transition: all 0.15s;
}

.blog-category-item:hover {
  background: var(--color-white);
  color: var(--violet-600);
}

.blog-category-count {
  font-size: 12px;
  color: var(--slate-400);
  background: var(--color-white);
  padding: 2px 8px;
  border-radius: 9999px;
}

/* Newsletter CTA */
.blog-newsletter-block {
  background: linear-gradient(135deg, var(--violet-600) 0%, var(--violet-500) 100%);
  color: var(--color-white);
}

.blog-newsletter-block h3 {
  color: var(--color-white);
}

.blog-newsletter-block p {
  font-size: 14px;
  opacity: 0.9;
  margin-bottom: 16px;
}

.blog-newsletter-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.blog-newsletter-input {
  font-family: var(--font-body);
  font-size: 14px;
  padding: 12px 16px;
  border-radius: 10px;
  border: none;
  background: rgba(255, 255, 255, 0.15);
  color: var(--color-white);
  outline: none;
}

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

.blog-newsletter-input:focus {
  background: rgba(255, 255, 255, 0.25);
}

.blog-newsletter-btn {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  padding: 12px 16px;
  border-radius: 10px;
  border: none;
  background: var(--color-white);
  color: var(--violet-600);
  cursor: pointer;
  transition: all 0.2s;
}

.blog-newsletter-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Pagination */
.blog-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
}

.blog-page-btn {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid var(--slate-200);
  background: var(--color-white);
  color: var(--slate-700);
  cursor: pointer;
  transition: all 0.15s;
}

.blog-page-btn:hover {
  border-color: var(--violet-500);
  color: var(--violet-600);
}

.blog-page-btn.active {
  background: var(--violet-600);
  border-color: var(--violet-600);
  color: var(--color-white);
}

/* Blog Footer */
.blog-footer {
  background: var(--slate-900);
  color: var(--slate-300);
  padding: 64px 24px 32px;
}

.blog-footer-inner {
  max-width: 1280px;
  margin: 0 auto;
}

.blog-footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 48px;
}

.blog-footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  margin-top: 16px;
  max-width: 280px;
}

.blog-footer-col h4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  color: var(--color-white);
  margin-bottom: 16px;
}

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

.blog-footer-links li {
  margin-bottom: 8px;
}

.blog-footer-links a {
  font-size: 14px;
  color: var(--slate-400);
  text-decoration: none;
  transition: color 0.15s;
}

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

.blog-footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--slate-800);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--slate-500);
}

/* ===========================
   ARTICLE PAGE STYLES
   =========================== */

/* Reading Progress Bar */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--violet-600), var(--teal-500));
  z-index: 1001;
  transition: width 0.1s;
}

/* Article Header */
.article-header {
  background: linear-gradient(180deg, var(--violet-50) 0%, var(--color-white) 100%);
  padding: 80px 24px 64px;
}

.article-header-inner {
  max-width: 720px;
  margin: 0 auto;
}

.article-tag {
  display: inline-flex;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--violet-600);
  background: var(--color-white);
  padding: 6px 14px;
  border-radius: 9999px;
  margin-bottom: 20px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.article-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.15;
  color: var(--slate-900);
  margin-bottom: 20px;
}

.article-subtitle {
  font-size: 20px;
  color: var(--slate-500);
  line-height: 1.6;
  margin-bottom: 32px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.article-author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--violet-500), var(--teal-500));
}

.article-author-info {
  display: flex;
  flex-direction: column;
}

.article-author-name {
  font-weight: 600;
  font-size: 15px;
  color: var(--slate-900);
}

.article-author-role {
  font-size: 13px;
  color: var(--slate-500);
}

.article-meta-divider {
  width: 1px;
  height: 32px;
  background: var(--slate-200);
}

.article-meta-details {
  display: flex;
  gap: 16px;
  font-size: 14px;
  color: var(--slate-500);
}

.article-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Article Layout */
.article-layout {
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 24px;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 64px;
}

/* Table of Contents */
.article-toc {
  position: sticky;
  top: 100px;
  height: fit-content;
}

.article-toc-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--slate-500);
  margin-bottom: 16px;
}

.article-toc-list {
  list-style: none;
}

.article-toc-item {
  margin-bottom: 8px;
}

.article-toc-link {
  font-size: 14px;
  color: var(--slate-500);
  text-decoration: none;
  display: block;
  padding: 6px 0 6px 12px;
  border-left: 2px solid transparent;
  transition: all 0.15s;
}

.article-toc-link:hover {
  color: var(--violet-600);
}

.article-toc-link.active {
  color: var(--violet-600);
  border-left-color: var(--violet-600);
  font-weight: 500;
}

.article-toc-link.nested {
  padding-left: 24px;
  font-size: 13px;
}

/* Article Content */
.article-content {
  max-width: 720px;
}

.article-content h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 32px;
  line-height: 1.2;
  color: var(--slate-900);
  margin-top: 56px;
  margin-bottom: 24px;
  scroll-margin-top: 100px;
}

.article-content h2::before {
  content: '';
  display: block;
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, var(--violet-600), var(--teal-500));
  margin-bottom: 16px;
  border-radius: 2px;
}

.article-content h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 24px;
  color: var(--slate-900);
  margin-top: 40px;
  margin-bottom: 16px;
  scroll-margin-top: 100px;
}

.article-content p {
  font-size: 18px;
  line-height: 1.7;
  margin-bottom: 24px;
  color: var(--slate-700);
}

.article-content ul,
.article-content ol {
  margin-bottom: 24px;
  padding-left: 24px;
}

.article-content li {
  margin-bottom: 12px;
  font-size: 18px;
  line-height: 1.7;
  color: var(--slate-700);
}

.article-content a {
  color: var(--violet-600);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.article-content a:hover {
  color: var(--violet-500);
}

/* Callout Boxes */
.callout {
  padding: 24px 28px;
  border-radius: 12px;
  margin: 32px 0;
}

.callout-info {
  background: var(--violet-50);
  border-left: 4px solid var(--violet-600);
}

.callout-tip {
  background: var(--teal-50);
  border-left: 4px solid var(--teal-500);
}

.callout-warning {
  background: var(--amber-50);
  border-left: 4px solid var(--amber-500);
}

.callout-title {
  font-weight: 600;
  font-size: 15px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.callout-info .callout-title { color: var(--violet-600); }
.callout-tip .callout-title { color: var(--teal-500); }
.callout-warning .callout-title { color: var(--amber-500); }

.callout p:last-child {
  margin-bottom: 0;
}

/* Pull Quote */
.pull-quote {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 24px;
  line-height: 1.4;
  color: var(--slate-900);
  border-left: 4px solid var(--violet-600);
  padding-left: 24px;
  margin: 40px 0;
}

/* Expert Quote */
.expert-quote {
  background: linear-gradient(135deg, var(--violet-50), var(--color-white));
  border: 1px solid var(--violet-100);
  border-radius: 16px;
  padding: 32px;
  margin: 40px 0;
}

.expert-quote-text {
  font-size: 18px;
  font-style: italic;
  color: var(--slate-700);
  margin-bottom: 20px;
  line-height: 1.7;
}

.expert-quote-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.expert-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--violet-500), var(--teal-500));
  border: 3px solid var(--color-white);
  box-shadow: 0 2px 8px rgba(124, 58, 237, 0.2);
}

.expert-info {
  display: flex;
  flex-direction: column;
}

.expert-name {
  font-weight: 600;
  font-size: 15px;
  color: var(--slate-900);
}

.expert-role {
  font-size: 13px;
  color: var(--slate-500);
}

/* Inline CTA */
.inline-cta {
  background: linear-gradient(135deg, var(--violet-600), var(--violet-500));
  border-radius: 16px;
  padding: 40px;
  margin: 48px 0;
  color: var(--color-white);
  text-align: center;
}

.inline-cta h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px;
  color: var(--color-white);
  margin: 0 0 12px 0;
}

.inline-cta p {
  font-size: 16px;
  opacity: 0.9;
  margin-bottom: 24px;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
  color: var(--color-white);
}

.inline-cta-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.inline-cta .btn-white {
  background: var(--color-white);
  color: var(--violet-600);
  font-weight: 600;
  font-size: 14px;
  padding: 12px 24px;
  border-radius: 9999px;
  text-decoration: none;
  transition: all 0.2s;
}

.inline-cta .btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.inline-cta .btn-ghost-white {
  color: var(--color-white);
  font-weight: 500;
  font-size: 14px;
  padding: 12px 24px;
  border-radius: 9999px;
  text-decoration: none;
  opacity: 0.9;
  transition: all 0.2s;
}

.inline-cta .btn-ghost-white:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.2);
}

/* Related Articles */
.related-section {
  background: var(--slate-50);
  padding: 64px 24px;
  margin-top: 64px;
}

.related-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.related-header {
  text-align: center;
  margin-bottom: 40px;
}

.related-header h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 28px;
  color: var(--slate-900);
}

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

.related-card {
  background: var(--color-white);
  border: 1px solid var(--slate-200);
  border-radius: 12px;
  padding: 24px;
  transition: all 0.25s;
}

.related-card:hover {
  border-color: var(--violet-200);
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  transform: translateY(-4px);
}

.related-tag {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--teal-500);
  margin-bottom: 12px;
}

.related-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  color: var(--slate-900);
  text-decoration: none;
  line-height: 1.3;
  display: block;
  margin-bottom: 12px;
}

.related-title:hover {
  color: var(--violet-600);
}

.related-meta {
  font-size: 13px;
  color: var(--slate-500);
}

/* Global CTA Section */
.global-cta {
  background: var(--slate-900);
  padding: 80px 24px;
  text-align: center;
}

.global-cta-inner {
  max-width: 600px;
  margin: 0 auto;
}

.global-cta h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 36px;
  color: var(--color-white);
  margin-bottom: 16px;
}

.global-cta p {
  font-size: 18px;
  color: var(--slate-400);
  margin-bottom: 32px;
}

/* Blog Responsive */
@media (max-width: 1024px) {
  .blog-content-with-sidebar {
    grid-template-columns: 1fr;
  }

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

  .blog-sidebar-block {
    margin-bottom: 0;
  }

  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-toc {
    position: static;
    background: var(--slate-50);
    padding: 20px 24px;
    border-radius: 12px;
    margin-bottom: 32px;
  }

  .article-toc-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
  }

  .article-toc-link {
    padding: 4px 0;
    border-left: none;
  }
}

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

  .blog-featured-card {
    grid-template-columns: 1fr;
  }

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

  .blog-sidebar {
    grid-template-columns: 1fr;
  }

  .blog-nav {
    display: none;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }
}