/* Modern Portfolio Design System - Creative Edition */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Creative Color System */
  --primary-50: #f5f7ff;
  --primary-100: #e0e7ff;
  --primary-200: #c7d2fe;
  --primary-300: #a5b4fc;
  --primary-400: #818cf8;
  --primary-500: #6366f1;
  --primary-600: #4f46e5;
  --primary-700: #4338ca;
  --primary-800: #3730a3;
  --primary-900: #312e81;
  
  /* Sophisticated Neutral Palette */
  --gray-50: #f9fafb;
  --gray-100: #f5f5f5;
  --gray-200: #e5e7eb;
  --gray-300: #d4d4d4;
  --gray-400: #a3a3a3;
  --gray-500: #737373;
  --gray-600: #4b5563;
  --gray-700: #404040;
  --gray-800: #1f2937;
  --gray-900: #111827;
  
  /* Creative Accent Colors */
  --accent-purple: #8b5cf6;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  --accent-indigo: #6366f1;
  
  /* Semantic Colors (No Red) */
  --success: var(--accent-emerald);
  --warning: var(--accent-amber);
  --info: var(--primary-600);
  --error: var(--accent-rose);
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
  
  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 2.5rem;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 5rem;
  --space-24: 6rem;
  
  /* Border Radius */
  --radius-sm: 0.125rem;
  --radius: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-3xl: 1.5rem;
  
  /* Creative Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 2px 6px rgba(99, 102, 241, 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 6px 20px rgba(16, 185, 129, 0.3);
  
  /* Creative Gradients */
  --gradient-primary: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-800) 100%);
  --gradient-creative: linear-gradient(135deg, #7c3aed 0%, #059669 100%);
  --gradient-subtle: linear-gradient(90deg, #f3e8ff 0%, #d1fae5 100%);
  --gradient-dark: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
  
  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
  
  /* Add missing accent colors for gradients */
  --accent-purple-600: #7c3aed;
  --accent-blue-600: #3b82f6;
  --accent-emerald-600: #059669;
}

/* Base Styles */
* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--gray-800);
  background-color: var(--gray-50);
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

/* Creative Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 var(--space-4) 0;
  color: var(--gray-900);
  letter-spacing: -0.025em;
}

h1 { font-size: 3.5rem; font-weight: 800; }
h2 { font-size: 2.5rem; font-weight: 700; }
h3 { font-size: 2rem; font-weight: 600; }
h4 { font-size: 1.5rem; font-weight: 600; }
h5 { font-size: 1.25rem; font-weight: 600; }
h6 { font-size: 1.125rem; font-weight: 600; }

p {
  margin: 0 0 var(--space-4) 0;
  color: var(--gray-700);
  line-height: 1.7;
}

.lead {
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--gray-600);
  line-height: 1.6;
}

/* Layout Components */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--space-4);
}

/* Creative Navigation */
.navbar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--gray-200);
  padding: var(--space-4) 0;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

.navbar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient-creative);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
  letter-spacing: -0.025em;
}

.navbar-nav {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--space-8);
}

.nav-link {
  color: var(--gray-600);
  text-decoration: none;
  font-weight: 500;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-lg);
  position: relative;
}

.nav-link:hover {
  color: var(--primary-600);
  background: var(--primary-50);
  transform: translateY(-1px);
}

/* Creative Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--gradient-subtle);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 80% 20%, var(--accent-purple-100) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, var(--accent-emerald-100) 0%, transparent 50%);
  opacity: 0.6;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  text-align: center;
}

.hero-profile {
  margin-bottom: 2rem;
  display: flex;
  justify-content: center;
}

.hero-image {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid white;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  transition: all 0.3s ease;
}

.hero-image:hover {
  transform: scale(1.05);
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.2);
}

.hero-title {
  font-size: 4rem;
  font-weight: 900;
  background: var(--gradient-creative);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-6);
  letter-spacing: -0.025em;
  line-height: 1.1;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--gray-600);
  margin-bottom: var(--space-8);
  font-weight: 400;
  line-height: 1.5;
}

/* Creative Cards */
.card {
  background: white;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: all var(--transition-normal);
  border: 1px solid var(--gray-200);
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-creative);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-2xl);
}

.card:hover::before {
  opacity: 1;
}

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.card:hover .card-image {
  transform: scale(1.05);
}

.card-content {
  padding: var(--space-6);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--gray-900);
  line-height: 1.4;
}

.card-text {
  color: var(--gray-600);
  margin-bottom: var(--space-4);
  line-height: 1.6;
}

/* Creative Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-xl);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-bounce);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  gap: var(--space-2);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left var(--transition-normal);
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: var(--gradient-creative);
  color: white;
  box-shadow: var(--shadow-md);
}

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

.btn-secondary {
  background: var(--gray-100);
  color: var(--gray-700);
  border: 2px solid var(--gray-300);
}

.btn-secondary:hover {
  background: var(--gray-200);
  color: var(--gray-800);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--primary-600);
  border: 2px solid var(--primary-600);
}

.btn-outline:hover {
  background: var(--primary-600);
  color: white;
  transform: translateY(-2px);
}

/* Creative Grid System */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* Creative Case Study Styles */
.case-study-hero {
  background: var(--gradient-dark), var(--hero-image);
  background-size: cover;
  background-position: center;
  padding: var(--space-24) 0;
  color: white;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.case-study-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 30% 70%, rgba(139, 92, 246, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 70% 30%, rgba(14, 165, 233, 0.3) 0%, transparent 50%);
}

.case-study-hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: var(--space-6);
  color: white;
  position: relative;
  z-index: 2;
}

.case-study-hero .lead {
  font-size: 1.5rem;
  opacity: 0.9;
  max-width: 800px;
  margin: 0 auto;
  color: var(--gray-100);
  position: relative;
  z-index: 2;
}

.case-study-meta {
  background: var(--gradient-subtle);
  padding: var(--space-8) 0;
  border-bottom: 1px solid var(--gray-200);
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.meta-item {
  text-align: center;
  background: white;
  padding: var(--space-6);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal);
}

.meta-item:hover {
  transform: translateY(-4px);
}

.meta-item h3 {
  color: var(--primary-600);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.meta-item p {
  color: var(--gray-700);
  margin: 0;
  font-size: 1.1rem;
}

.case-study-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-8) var(--space-4);
}

.section {
  margin-bottom: var(--space-16);
}

.section-title {
  color: var(--primary-600);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 2px solid var(--gray-200);
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 80px;
  height: 2px;
  background: var(--gradient-creative);
  border-radius: 1px;
}

/* Creative Tension Points & Strategic Insights */
.tension-point {
  background: linear-gradient(135deg, var(--accent-purple) 0%, var(--primary-600) 100%);
  color: white;
  padding: var(--space-6);
  border-radius: var(--radius-2xl);
  margin: var(--space-6) 0;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.tension-point h3 {
  color: white;
  margin-bottom: var(--space-3);
}

.tension-point p {
  color: white;
  margin-bottom: 0;
  opacity: 0.95;
}

.tension-point::before {
  content: '💡';
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  font-size: 2rem;
  opacity: 0.3;
}

.strategic-insight {
  background: linear-gradient(135deg, var(--primary-50) 0%, var(--accent-purple-50) 100%);
  border-left: 4px solid var(--primary-600);
  padding: var(--space-6);
  border-radius: 0 var(--radius-2xl) var(--radius-2xl) 0;
  margin: var(--space-6) 0;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.strategic-insight::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(139, 92, 246, 0.05) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform var(--transition-normal);
}

.strategic-insight:hover::before {
  transform: translateX(100%);
}

.ecosystem-impact {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  margin: var(--space-6) 0;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal);
}

.ecosystem-impact:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.impact-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.metric {
  text-align: center;
  padding: var(--space-6);
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal);
  border: 1px solid var(--gray-200);
}

.metric:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.metric-value {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-creative);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-2);
  line-height: 1;
}

.metric-label {
  font-size: 0.875rem;
  color: var(--gray-600);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 500;
}

/* Creative Image Gallery */
.image-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
  margin: var(--space-8) 0;
}

.gallery-item {
  background: white;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border: 1px solid var(--gray-200);
  position: relative;
}

.gallery-item:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-2xl);
}

.gallery-item img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-caption {
  padding: var(--space-4);
  background: var(--gray-50);
  border-top: 1px solid var(--gray-200);
}

.gallery-caption p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--gray-600);
}

/* Creative Responsive Design */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.25rem;
  }
  
  .case-study-hero h1 {
    font-size: 2.5rem;
  }
  
  .case-study-hero .lead {
    font-size: 1.25rem;
  }
  
  .meta-grid {
    grid-template-columns: 1fr;
  }
  
  .image-gallery {
    grid-template-columns: 1fr;
  }
  
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }
  
  .navbar-nav {
    flex-direction: column;
    gap: var(--space-4);
  }
}

/* Creative Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.fade-in {
  animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-in-left {
  animation: slideInLeft 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-in-right {
  animation: slideInRight 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Creative Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.mt-0 { margin-top: 0; }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

.hidden { display: none; }
.block { display: block; }
.flex { display: flex; }
.grid { display: grid; }

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

/* Creative Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--gradient-creative);
  border-radius: var(--radius-lg);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-700);
}

/* Filter button base style */
.filter-btn {
  background: var(--accent-emerald-50);
  border: 2px solid var(--accent-emerald-300);
  color: var(--accent-emerald-700);
  font-weight: 600;
  border-radius: 50px;
  padding: var(--space-2) var(--space-5);
  font-size: 1rem;
  min-width: 120px;
  cursor: pointer;
  transition: all var(--transition-bounce);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  justify-content: center;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.10);
  margin-bottom: var(--space-2);
  margin-right: var(--space-2);
  background-clip: padding-box;
}

.filter-btn:not(.active) {
  background: var(--accent-emerald-50) !important;
  border: 2px solid var(--accent-emerald-300) !important;
  color: var(--accent-emerald-700) !important;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.10);
  font-weight: 600;
}

.filter-btn:hover:not(.active) {
  background: var(--accent-emerald-200) !important;
  border-color: var(--accent-emerald-500) !important;
  color: var(--accent-emerald-900) !important;
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 6px 18px rgba(16, 185, 129, 0.18);
}

/* Experience active gradient - now robust */
.filter-section-experience .filter-btn.active {
  background: linear-gradient(135deg, var(--primary-600) 0%, var(--accent-purple-600) 100%) !important;
  color: #fff !important;
  border-color: transparent !important;
  font-size: 1rem !important;
  min-width: 120px !important;
  padding: var(--space-2) var(--space-5) !important;
  font-weight: 700 !important;
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.25) !important;
  transform: translateY(-2px) scale(1.06) !important;
  transition: all var(--transition-bounce) !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: var(--space-2) !important;
  justify-content: center !important;
  background-clip: padding-box !important;
}

/* Domain active gradient - robust and matching Experience */
.filter-section-domain .filter-btn.active {
  background: linear-gradient(135deg, var(--accent-emerald-600) 0%, var(--accent-blue-600) 100%) !important;
  color: #fff !important;
  border-color: transparent !important;
  font-size: 1rem !important;
  min-width: 120px !important;
  padding: var(--space-2) var(--space-5) !important;
  font-weight: 700 !important;
  box-shadow: 0 8px 32px rgba(16, 185, 129, 0.25) !important;
  transform: translateY(-2px) scale(1.06) !important;
  transition: all var(--transition-bounce) !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: var(--space-2) !important;
  justify-content: center !important;
  background-clip: padding-box !important;
}

/* All Projects button - special vibrant style */
.filter-btn[data-filter="all"] {
  font-size: 1.15rem;
  min-width: 200px;
  padding: var(--space-4) var(--space-8);
  font-weight: 800;
  box-shadow: 0 6px 24px rgba(0,0,0,0.10);
  background: linear-gradient(90deg, #7c3aed 0%, #059669 40%, #10b981 70%, #3b82f6 100%);
  color: var(--primary-700);
  border: 2px solid var(--primary-300);
  transition: all var(--transition-bounce);
}

.filter-btn[data-filter="all"]:hover:not(.active) {
  background: linear-gradient(90deg, #a78bfa 0%, #34d399 50%, #60a5fa 100%);
  color: var(--primary-900);
  border-color: var(--primary-500);
  box-shadow: 0 10px 32px rgba(99, 102, 241, 0.18);
}

.filter-btn[data-filter="all"].active {
  background: linear-gradient(90deg, #7c3aed 0%, #059669 30%, #10b981 60%, #3b82f6 100%) !important;
  color: #fff !important;
  border-color: transparent !important;
  font-size: 1.18rem;
  font-weight: 900;
  box-shadow: 0 16px 48px 0 rgba(99, 102, 241, 0.28);
  transform: translateY(-3px) scale(1.08);
}

/* Restore Work Page Styles */
.filter-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
    margin-bottom: var(--space-12);
    align-items: stretch;
}

.filter-section {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    border-radius: var(--radius-xl);
    justify-content: flex-start;
}

.filter-section:first-of-type {
    padding: var(--space-2) var(--space-4) var(--space-1) var(--space-4);
    min-height: 60px;
    gap: var(--space-1);
}

.filter-section:first-of-type .filter-section-buttons {
    margin-bottom: 0 !important;
    padding-bottom: 0 !important;
    margin-top: 0 !important;
    padding-top: 0 !important;
}

.filter-section:first-of-type .filter-section-title {
    margin-bottom: var(--space-2) !important;
    padding-bottom: var(--space-2) !important;
}

.filter-section-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-800);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    position: relative;
    padding-bottom: var(--space-3);
    text-align: left;
    align-self: flex-start;
}

.filter-section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    border-radius: 2px;
}

.filter-section:first-of-type .filter-section-title::after {
    background: linear-gradient(90deg, var(--primary-500) 0%, var(--accent-purple-500) 100%);
}

.filter-section:nth-of-type(2) .filter-section-title::after {
    background: linear-gradient(90deg, var(--accent-emerald-500) 0%, var(--accent-blue-500) 100%);
}

.filter-section-buttons {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--space-6);
    justify-content: flex-start;
    width: 100%;
    flex-wrap: wrap;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--space-8);
    margin-top: var(--space-8);
}

.project-card {
    background: white;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--gray-200);
    position: relative;
    opacity: 1;
    transform: scale(1);
}

.project-card.hidden {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-creative);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.project-card:hover::before {
    opacity: 1;
}

.project-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: var(--shadow-2xl);
}

.project-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.project-card:hover .project-image {
    transform: scale(1.05);
}

.project-content {
    padding: var(--space-6);
}

.project-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-3);
    color: var(--gray-900);
    line-height: 1.4;
}

.project-description {
    color: var(--gray-600);
    margin-bottom: var(--space-4);
    line-height: 1.6;
}

.project-tags {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
    flex-wrap: wrap;
}

.project-tag {
    background: var(--primary-50);
    color: var(--primary-700);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-lg);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--primary-600);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.project-link:hover {
    color: var(--primary-700);
    transform: translateX(4px);
}

.work-header {
    background: var(--gradient-subtle);
    padding: var(--space-16) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.work-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 70%, var(--primary-100) 0%, transparent 50%),
        radial-gradient(circle at 70% 30%, var(--accent-purple-100) 0%, transparent 50%);
    opacity: 0.3;
}

.work-header-content {
    position: relative;
    z-index: 2;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in-up {
    animation: slideInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.slide-in-up:nth-child(1) { animation-delay: 0.1s; }
.slide-in-up:nth-child(2) { animation-delay: 0.2s; }
.slide-in-up:nth-child(3) { animation-delay: 0.3s; }
.slide-in-up:nth-child(4) { animation-delay: 0.4s; }
.slide-in-up:nth-child(5) { animation-delay: 0.5s; }
.slide-in-up:nth-child(6) { animation-delay: 0.6s; }