/* ============================================
   Adnox Media - Modern Social Media Marketing Agency
   Vibrant, Premium, SEO-Optimized Design
   ============================================ */

:root {
  /* Brand Colors - Vibrant & Energetic */
  --primary: #E11D48;
  --primary-dark: #BE123C;
  --primary-light: #FB7185;
  --secondary: #7C3AED;
  --secondary-dark: #5B21B6;
  --accent: #06B6D4;
  --accent-2: #F59E0B;
  --accent-3: #10B981;
  --accent-4: #EC4899;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #E11D48 0%, #7C3AED 50%, #06B6D4 100%);
  --gradient-hero: linear-gradient(135deg, #1E1B4B 0%, #4C1D95 40%, #831843 100%);
  --gradient-card: linear-gradient(145deg, #FFFFFF 0%, #F8FAFC 100%);
  --gradient-cta: linear-gradient(90deg, #E11D48 0%, #7C3AED 100%);
  --gradient-dark: linear-gradient(180deg, #0F172A 0%, #1E1B4B 100%);
  --gradient-purple: linear-gradient(135deg, #7C3AED 0%, #EC4899 100%);
  --gradient-cyan: linear-gradient(135deg, #06B6D4 0%, #3B82F6 100%);
  --gradient-orange: linear-gradient(135deg, #F59E0B 0%, #EF4444 100%);
  
  /* Neutrals */
  --dark: #0F172A;
  --dark-2: #1E293B;
  --dark-3: #334155;
  --gray: #64748B;
  --gray-light: #94A3B8;
  --light: #F1F5F9;
  --white: #FFFFFF;
  --bg: #FAFBFC;
  
  /* Typography */
  --font-primary: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Poppins', 'Inter', sans-serif;
  
  /* Spacing & Layout */
  --container: 1200px;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 4px 20px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.12);
  --shadow-glow: 0 0 40px rgba(225, 29, 72, 0.25);
  
  /* Transitions */
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.15s ease;
}

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

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

body {
  font-family: var(--font-primary);
  color: var(--dark);
  background: var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
  list-style: none;
}

button, .btn {
  cursor: pointer;
  border: none;
  font-family: inherit;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.25;
  color: var(--dark);
}

h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p {
  color: var(--dark-3);
  margin-bottom: 1rem;
}

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section-sm {
  padding: 3rem 0;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem;
}

.section-header .badge {
  display: inline-block;
  background: linear-gradient(90deg, rgba(225,29,72,0.1), rgba(124,58,237,0.1));
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.4rem 1rem;
  border-radius: 50px;
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.125rem;
  color: var(--gray);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 50px;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-cta);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(225, 29, 72, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(225, 29, 72, 0.45);
}

.btn-secondary {
  background: var(--white);
  color: var(--primary);
  border: 2px solid var(--primary);
}

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

.btn-whatsapp {
  background: #25D366;
  color: var(--white);
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.35);
}

.btn-whatsapp:hover {
  background: #1DA851;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.45);
}

.btn-call {
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.35);
}

.btn-call:hover {
  background: #0891B2;
  transform: translateY(-2px);
}

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.4);
}

.btn-outline-white:hover {
  background: var(--white);
  color: var(--dark);
  border-color: var(--white);
}

.btn-lg {
  padding: 1.1rem 2.25rem;
  font-size: 1.0625rem;
}

.btn-sm {
  padding: 0.6rem 1.25rem;
  font-size: 0.875rem;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(15, 23, 42, 0.98);
  box-shadow: 0 4px 30px rgba(0,0,0,0.2);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 1.5rem;
}

.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.logo img {
  height: 36px;
  width: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  font-size: 0.9375rem;
  padding: 0.5rem 0.9rem;
  border-radius: 8px;
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--white);
  background: rgba(255,255,255,0.08);
}

/* Dropdown */
.nav-item {
  position: relative;
}

.dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 1rem;
  min-width: 280px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 100;
}

.nav-item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(4px);
}

.dropdown-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.25rem;
}

.dropdown a {
  display: block;
  padding: 0.6rem 0.9rem;
  color: var(--dark-2);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 8px;
}

.dropdown a:hover {
  background: var(--light);
  color: var(--primary);
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.header-cta .btn {
  padding: 0.6rem 1.15rem;
  font-size: 0.875rem;
}

/* Mobile Menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  padding: 8px;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--dark);
  z-index: 999;
  padding: 5rem 1.5rem 2rem;
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.mobile-nav.open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav a {
  display: block;
  color: var(--white);
  font-size: 1.125rem;
  font-weight: 500;
  padding: 0.875rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.mobile-nav .mobile-cta {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--gradient-hero);
  padding: 8rem 0 5rem;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(236,72,153,0.25) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -15%;
  left: -5%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(6,182,212,0.2) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  color: var(--white);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.4rem 1rem;
  border-radius: 50px;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(8px);
}

.hero h1 {
  color: var(--white);
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.hero h1 span {
  background: linear-gradient(90deg, #FB7185, #C4B5FD, #67E8F9);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-text {
  color: rgba(255,255,255,0.8);
  font-size: 1.2rem;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  align-items: center;
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
}

.hero-trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-visual {
  position: absolute;
  right: 5%;
  top: 50%;
  transform: translateY(-50%);
  width: 420px;
  height: 420px;
  z-index: 1;
  display: none;
}

@media (min-width: 1100px) {
  .hero-visual {
    display: block;
  }
}

/* Cards */
.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid rgba(15,23,42,0.04);
  height: 100%;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  color: var(--white);
}

.card-icon.red { background: var(--gradient-cta); }
.card-icon.purple { background: var(--gradient-purple); }
.card-icon.cyan { background: var(--gradient-cyan); }
.card-icon.orange { background: var(--gradient-orange); }
.card-icon.green { background: linear-gradient(135deg, #10B981, #059669); }

.card h3 {
  margin-bottom: 0.75rem;
  font-size: 1.25rem;
}

.card p {
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

.card-link {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.card-link:hover {
  gap: 0.6rem;
}

/* Grid layouts */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

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

/* Platforms */
.platforms {
  background: var(--dark);
  color: var(--white);
}

.platforms .section-header h2,
.platforms .section-header p {
  color: var(--white);
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1.5rem;
  text-align: center;
}

.platform-item {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 1.5rem 1rem;
  transition: var(--transition);
}

.platform-item:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-4px);
}

.platform-icon {
  font-size: 2.25rem;
  margin-bottom: 0.75rem;
}

.platform-item span {
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255,255,255,0.9);
}

/* Process */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  counter-reset: step;
}

@media (max-width: 900px) {
  .process-steps { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 500px) {
  .process-steps { grid-template-columns: 1fr; }
}

.process-step {
  position: relative;
  background: var(--white);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  box-shadow: var(--shadow);
  text-align: center;
  counter-increment: step;
}

.process-step::before {
  content: counter(step);
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  width: 36px;
  height: 36px;
  background: var(--gradient-cta);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.process-step h4 {
  margin: 0.75rem 0 0.5rem;
}

.process-step p {
  font-size: 0.9rem;
  margin: 0;
}

/* Industries */
.industry-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.industry-tag {
  background: var(--white);
  border: 1px solid rgba(15,23,42,0.08);
  padding: 0.65rem 1.25rem;
  border-radius: 50px;
  font-weight: 500;
  font-size: 0.95rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.industry-tag:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

/* Kolkata section */
.kolkata-section {
  background: linear-gradient(135deg, #1E1B4B 0%, #4C1D95 100%);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 3.5rem;
  position: relative;
  overflow: hidden;
}

.kolkata-section h2 {
  color: var(--white);
  margin-bottom: 1rem;
}

.kolkata-section p {
  color: rgba(255,255,255,0.85);
}

.area-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.5rem;
}

.area-tag {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.15);
  padding: 0.4rem 0.9rem;
  border-radius: 50px;
  font-size: 0.875rem;
  color: var(--white);
}

/* Testimonials */
.testimonial-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--primary);
}

.testimonial-text {
  font-size: 1.05rem;
  font-style: italic;
  color: var(--dark-2);
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1.1rem;
}

.author-info strong {
  display: block;
  color: var(--dark);
}

.author-info span {
  font-size: 0.875rem;
  color: var(--gray);
}

/* FAQ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--white);
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 1.25rem 1.5rem;
  background: none;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

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

.faq-icon {
  font-size: 1.25rem;
  transition: var(--transition);
  flex-shrink: 0;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-item.open .faq-answer {
  max-height: 500px;
}

.faq-answer-inner {
  padding: 0 1.5rem 1.5rem;
  color: var(--dark-3);
}

/* CTA Section */
.cta-section {
  background: var(--gradient-hero);
  padding: 5rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section h2 {
  color: var(--white);
  margin-bottom: 1rem;
}

.cta-section p {
  color: rgba(255,255,255,0.85);
  font-size: 1.15rem;
  max-width: 600px;
  margin: 0 auto 2rem;
}

/* Footer */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,0.8);
  padding: 4rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 500px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand img {
  height: 32px;
  margin-bottom: 1rem;
}

.footer-brand p {
  color: rgba(255,255,255,0.65);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.footer h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 1.25rem;
  font-weight: 600;
}

.footer-links a {
  display: block;
  color: rgba(255,255,255,0.65);
  font-size: 0.9rem;
  padding: 0.3rem 0;
}

.footer-links a:hover {
  color: var(--primary-light);
}

.footer-contact p {
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  color: rgba(255,255,255,0.75);
}

.footer-contact a {
  color: var(--primary-light);
  font-weight: 500;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 1.5rem 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.5);
}

.footer-legal {
  display: flex;
  gap: 1.5rem;
}

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

/* Mobile Bottom CTA */
.mobile-cta-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--dark);
  padding: 0.75rem 1rem;
  z-index: 900;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.25);
  gap: 0.75rem;
}

.mobile-cta-bar .btn {
  flex: 1;
  justify-content: center;
}

@media (max-width: 768px) {
  .mobile-cta-bar {
    display: flex;
  }
  body {
    padding-bottom: 70px;
  }
  .header-cta {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
  .nav {
    display: none;
  }
}

/* Page Hero (inner pages) */
.page-hero {
  background: var(--gradient-hero);
  padding: 8rem 0 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero h1 {
  color: var(--white);
  margin-bottom: 1rem;
}

.page-hero p {
  color: rgba(255,255,255,0.8);
  font-size: 1.15rem;
  max-width: 680px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
}

.breadcrumb a {
  color: rgba(255,255,255,0.8);
}

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

.breadcrumb span {
  color: rgba(255,255,255,0.4);
}

/* Content sections */
.content-section {
  padding: 4rem 0;
}

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

.content-block h2 {
  margin: 2.5rem 0 1rem;
}

.content-block h3 {
  margin: 2rem 0 0.75rem;
}

.content-block ul, .content-block ol {
  margin: 1rem 0 1.5rem 1.5rem;
  list-style: disc;
}

.content-block li {
  margin-bottom: 0.5rem;
  color: var(--dark-3);
}

.content-block ol {
  list-style: decimal;
}

/* Service benefits */
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.benefit-item {
  background: var(--white);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  border-top: 3px solid var(--primary);
}

.benefit-item h4 {
  margin-bottom: 0.5rem;
  color: var(--dark);
}

/* Related services */
.related-services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.related-card {
  background: var(--white);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid transparent;
}

.related-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
}

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

.blog-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.blog-card-img {
  height: 200px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 2.5rem;
}

.blog-card-body {
  padding: 1.5rem;
}

.blog-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--gray);
  margin-bottom: 0.75rem;
}

.blog-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.blog-card h3 a:hover {
  color: var(--primary);
}

/* Article */
.article-header {
  max-width: 800px;
  margin: 0 auto 2.5rem;
  text-align: center;
}

.article-meta {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: var(--gray);
  margin-top: 1rem;
}

.article-content {
  max-width: 740px;
  margin: 0 auto;
}

.article-content h2 {
  margin: 2.5rem 0 1rem;
  padding-top: 0.5rem;
}

.article-content h3 {
  margin: 1.75rem 0 0.75rem;
}

.article-content p {
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
}

.article-content ul, .article-content ol {
  margin: 1rem 0 1.5rem 1.5rem;
  list-style: disc;
}

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

.article-content ol {
  list-style: decimal;
}

.toc {
  background: var(--light);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  margin: 2rem 0;
}

.toc h4 {
  margin-bottom: 0.75rem;
}

.toc a {
  display: block;
  padding: 0.3rem 0;
  color: var(--dark-3);
  font-size: 0.95rem;
}

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

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Utility */
.text-center { text-align: center; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

/* Floating elements for visual interest */
.float-shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.4;
  pointer-events: none;
}

/* Accessibility */
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* Print */
@media print {
  .header, .footer, .mobile-cta-bar, .btn { display: none !important; }
}