:root {
  --pf-ai-green: #00d16f;
  --pf-ai-green-light: #e6faf2;
  --pf-ai-green-dark: #00a859;
  --pf-ai-cyan: #58b8cb;
  --pf-ai-orange: #f3541e;
  --pf-ai-dark: #2e2e2e;
  --pf-ai-body: #586782;
  --pf-ai-muted: #949c9e;
  --pf-ai-light-blue: #eaf6f8;
  --pf-ai-white: #ffffff;
}

@keyframes pf-ai-float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(2deg); }
}

@keyframes pf-ai-pulse-ring {
  0% { transform: scale(0.8); opacity: 0.5; }
  100% { transform: scale(2); opacity: 0; }
}

@keyframes pf-ai-gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes pf-ai-fade-up {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pf-ai-slide-in {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}

.pf-ai-section { position: relative; }
.pf-ai-container-inner { max-width: 1140px; margin: 0 auto; padding: 0 15px; }

/* Hero Section */
.pf-ai-hero {
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
  width: 100vw;
  background: linear-gradient(135deg, var(--pf-ai-green) 0%, #00b894 50%, var(--pf-ai-cyan) 100%);
  background-size: 200% 200%;
  animation: pf-ai-gradient-shift 12s ease infinite;
  padding: 140px 0 180px;
  overflow: hidden;
  position: relative;
}

.pf-ai-hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
                    radial-gradient(circle at 80% 80%, rgba(255,255,255,0.08) 0%, transparent 40%);
}

.pf-ai-hero-particle {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(5px);
  border: 1px solid rgba(255,255,255,0.2);
}

.pf-ai-hero-particle:nth-child(1) { width: 400px; height: 400px; top: -100px; right: -5%; animation: pf-ai-float 8s ease-in-out infinite; }
.pf-ai-hero-particle:nth-child(2) { width: 200px; height: 200px; bottom: 10%; left: 5%; animation: pf-ai-float 10s ease-in-out infinite 1s; }
.pf-ai-hero-particle:nth-child(3) { width: 100px; height: 100px; top: 30%; left: 20%; animation: pf-ai-float 6s ease-in-out infinite 2s; }

.pf-ai-hero-content {
  position: relative;
  z-index: 2;
  animation: pf-ai-fade-up 0.8s ease-out;
}

.pf-ai-year-badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  padding: 10px 24px;
  border-radius: 25px;
  color: white;
  font-family: 'Roboto Mono', monospace;
  font-size: 13px;
  letter-spacing: 2px;
  margin-bottom: 30px;
  border: 1px solid rgba(255,255,255,0.3);
  text-transform: uppercase;
}

.pf-ai-hero-title {
  font-family: 'Roboto', sans-serif;
  font-size: 56px;
  line-height: 1.1;
  color: white;
  margin-bottom: 25px;
  font-weight: 700;
  letter-spacing: -1px;
  max-width: 800px;
}

.pf-ai-hero-subtitle {
  font-family: 'Roboto', sans-serif;
  font-size: 22px;
  color: rgba(255,255,255,0.95);
  max-width: 600px;
  line-height: 1.6;
  font-weight: 300;
}

/* Screenshot Section */
.pf-ai-screenshot-section {
  margin-top: -80px;
  position: relative;
  z-index: 10;
  margin-bottom: 100px;
}

.pf-ai-screenshot-wrapper {
  background: var(--pf-ai-white);
  border-radius: 10px;
  padding: 12px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.12);
  position: relative;
  overflow: hidden;
}

/* Project Info */
.pf-ai-info-section {
  padding: 40px 0 100px;
}

.pf-ai-section-label {
  font-family: 'Roboto Mono', monospace;
  color: var(--pf-ai-green);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 20px;
  display: block;
  font-weight: 500;
}

.pf-ai-section-title {
  font-family: 'Roboto', sans-serif;
  font-size: 38px;
  color: var(--pf-ai-dark);
  margin-bottom: 40px;
  line-height: 1.2;
  font-weight: 700;
}

.pf-ai-body-text {
  font-family: 'Roboto', sans-serif;
  color: var(--pf-ai-body);
  font-size: 17px;
  line-height: 1.9;
  margin-bottom: 24px;
}

.pf-ai-highlight-box {
  background: var(--pf-ai-green-light);
  border-left: 4px solid var(--pf-ai-green);
  padding: 30px;
  border-radius: 0 10px 10px 0;
  margin: 40px 0;
}

.pf-ai-highlight-text {
  font-family: 'Roboto', sans-serif;
  color: var(--pf-ai-dark);
  font-size: 18px;
  line-height: 1.7;
  font-style: italic;
  margin: 0;
}

/* Three Pillars */
.pf-ai-pillars {
  margin: 80px 0;
}

.pf-ai-pillar-card {
  background: var(--pf-ai-white);
  border-radius: 10px;
  padding: 40px 30px;
  border: 1px solid rgba(0, 209, 111, 0.1);
  transition: all 0.5s ease-out;
  height: 100%;
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 15px rgba(88, 184, 203, 0.1);
}

.pf-ai-pillar-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 4px;
  background: var(--pf-ai-green);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease-out;
}

.pf-ai-pillar-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 209, 111, 0.15);
  border-color: rgba(0, 209, 111, 0.3);
}

.pf-ai-pillar-card:hover::before {
  transform: scaleX(1);
}

.pf-ai-pillar-icon {
  width: 70px;
  height: 70px;
  background: var(--pf-ai-green-light);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 25px;
  color: var(--pf-ai-green);
  font-family: 'Roboto', sans-serif;
  font-size: 28px;
  font-weight: 700;
  position: relative;
}

.pf-ai-pillar-icon::after {
  content: '';
  position: absolute;
  width: 100%; height: 100%;
  border-radius: 16px;
  border: 2px solid var(--pf-ai-green);
  top: 0; left: 0;
  opacity: 0;
  transform: scale(1.2);
  transition: all 0.3s ease-out;
}

.pf-ai-pillar-card:hover .pf-ai-pillar-icon::after {
  opacity: 0.3;
  transform: scale(1);
}

.pf-ai-pillar-title {
  font-family: 'Roboto', sans-serif;
  font-size: 22px;
  color: var(--pf-ai-dark);
  margin-bottom: 15px;
  font-weight: 600;
}

.pf-ai-pillar-text {
  font-family: 'Roboto', sans-serif;
  color: var(--pf-ai-body);
  font-size: 15px;
  line-height: 1.7;
  margin: 0;
}

/* Challenge & Solution Layout */
.pf-ai-content-grid {
  margin-top: 60px;
}

.pf-ai-subsection-title {
  font-family: 'Roboto', sans-serif;
  font-size: 24px;
  color: var(--pf-ai-dark);
  margin-bottom: 20px;
  font-weight: 600;
  position: relative;
  padding-bottom: 10px;
}

.pf-ai-subsection-title::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 40px; height: 3px;
  background: var(--pf-ai-green);
  border-radius: 3px;
}

.pf-ai-solution-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.pf-ai-solution-list li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 16px;
  font-family: 'Roboto', sans-serif;
  color: var(--pf-ai-body);
  font-size: 16px;
  line-height: 1.6;
  animation: pf-ai-slide-in 0.6s ease-out both;
}

.pf-ai-solution-list li:nth-child(1) { animation-delay: 0.1s; }
.pf-ai-solution-list li:nth-child(2) { animation-delay: 0.2s; }
.pf-ai-solution-list li:nth-child(3) { animation-delay: 0.3s; }
.pf-ai-solution-list li:nth-child(4) { animation-delay: 0.4s; }

.pf-ai-solution-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--pf-ai-green);
  font-weight: 700;
  font-family: 'Roboto Mono', monospace;
}

/* Color Palette Section */
.pf-ai-colors-section {
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
  width: 100vw;
  background: var(--pf-ai-light-blue);
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.pf-ai-colors-section::before {
  content: '';
  position: absolute;
  top: -50%; left: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0, 209, 111, 0.05) 0%, transparent 70%);
  border-radius: 50%;
}

.pf-ai-colors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
  position: relative;
  z-index: 2;
}

.pf-ai-color-card {
  background: white;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 15px rgba(88, 184, 203, 0.1);
  transition: all 0.3s ease-out;
}

.pf-ai-color-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(88, 184, 203, 0.2);
}

.pf-ai-color-swatch {
  height: 180px;
  background: var(--pf-ai-green);
  position: relative;
  overflow: hidden;
}

.pf-ai-color-swatch::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 150px; height: 150px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0);
  transition: transform 0.6s ease-out;
}

.pf-ai-color-card:hover .pf-ai-color-swatch::after {
  transform: translate(-50%, -50%) scale(2);
}

.pf-ai-color-info {
  padding: 25px;
}

.pf-ai-color-name {
  font-family: 'Roboto', sans-serif;
  font-weight: 600;
  color: var(--pf-ai-dark);
  margin-bottom: 8px;
  font-size: 18px;
}

.pf-ai-color-hex {
  font-family: 'Roboto Mono', monospace;
  color: var(--pf-ai-muted);
  font-size: 14px;
  letter-spacing: 1px;
}

/* Features Section */
.pf-ai-features-section {
  padding: 100px 0;
}

.pf-ai-feature-card {
  background: white;
  border-radius: 10px;
  padding: 60px;
  border: 1px solid rgba(0, 209, 111, 0.1);
  position: relative;
  overflow: hidden;
  transition: all 0.5s ease-out;
  box-shadow: 0 2px 15px rgba(88, 184, 203, 0.1);
  margin-top: 40px;
}

.pf-ai-feature-card::before {
  content: '';
  position: absolute;
  top: -100%; right: -100%;
  width: 200%; height: 200%;
  background: radial-gradient(circle, rgba(0, 209, 111, 0.03) 0%, transparent 50%);
  transition: all 0.8s ease-out;
}

.pf-ai-feature-card:hover {
  border-color: var(--pf-ai-green);
  box-shadow: 0 25px 80px rgba(0, 209, 111, 0.12);
  transform: translateY(-5px);
}

.pf-ai-feature-card:hover::before {
  top: -50%; right: -50%;
}

.pf-ai-feature-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--pf-ai-green-light);
  color: var(--pf-ai-green-dark);
  padding: 10px 20px;
  border-radius: 25px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 30px;
  font-family: 'Roboto Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.pf-ai-feature-badge::before {
  content: '';
  width: 10px; height: 10px;
  background: var(--pf-ai-green);
  border-radius: 50%;
  position: relative;
}

.pf-ai-feature-badge::after {
  content: '';
  position: absolute;
  width: 10px; height: 10px;
  background: var(--pf-ai-green);
  border-radius: 50%;
  animation: pf-ai-pulse-ring 2s infinite;
}

.pf-ai-feature-title {
  font-family: 'Roboto', sans-serif;
  font-size: 32px;
  color: var(--pf-ai-dark);
  margin-bottom: 20px;
  font-weight: 700;
}

.pf-ai-feature-desc {
  font-family: 'Roboto', sans-serif;
  color: var(--pf-ai-body);
  font-size: 17px;
  line-height: 1.8;
  max-width: 600px;
}

/* Tags Section */
.pf-ai-tags-section {
  padding: 80px 0;
  border-top: 1px solid rgba(0,0,0,0.05);
}

.pf-ai-taxonomy-wrapper h4 {
  font-family: 'Roboto Mono', monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--pf-ai-muted);
  margin-bottom: 15px;
  margin-top: 30px;
  font-weight: 500;
}

.pf-ai-tag-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.pf-ai-tag-list li a {
  display: inline-block;
  padding: 10px 24px;
  background: white;
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 25px;
  color: var(--pf-ai-body);
  text-decoration: none;
  font-family: 'Roboto', sans-serif;
  font-size: 14px;
  transition: all 0.3s ease-out;
  font-weight: 500;
}

.pf-ai-tag-list li a:hover {
  background: var(--pf-ai-green);
  color: white;
  border-color: var(--pf-ai-green);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 209, 111, 0.3);
}

/* CTA Section */
.pf-ai-cta-section {
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
  width: 100vw;
  background: var(--pf-ai-dark);
  padding: 120px 0;
  position: relative;
  overflow: hidden;
}

.pf-ai-cta-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: 
    linear-gradient(45deg, transparent 48%, rgba(0, 209, 111, 0.03) 50%, transparent 52%),
    linear-gradient(-45deg, transparent 48%, rgba(0, 209, 111, 0.03) 50%, transparent 52%);
  background-size: 60px 60px;
}

.pf-ai-cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
}

.pf-ai-cta-title {
  font-family: 'Roboto', sans-serif;
  font-size: 48px;
  color: white;
  margin-bottom: 25px;
  font-weight: 700;
  letter-spacing: -1px;
}

.pf-ai-cta-subtitle {
  font-family: 'Roboto', sans-serif;
  color: rgba(255,255,255,0.7);
  font-size: 19px;
  margin-bottom: 50px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
  font-weight: 300;
}

.pf-ai-btn-group {
  display: inline-flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}

.pf-ai-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 18px 36px;
  border-radius: 30px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease-out;
  cursor: pointer;
  border: none;
  font-family: 'Roboto', sans-serif;
}

.pf-ai-btn-primary {
  background: var(--pf-ai-green);
  color: white;
  box-shadow: 0 4px 20px rgba(0, 209, 111, 0.4);
}

.pf-ai-btn-primary:hover {
  background: var(--pf-ai-green-dark);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0, 209, 111, 0.5);
  color: white;
  text-decoration: none;
}

.pf-ai-btn-secondary {
  background: transparent;
  color: white;
  border: 2px solid rgba(255,255,255,0.25);
}

.pf-ai-btn-secondary:hover {
  background: white;
  color: var(--pf-ai-dark);
  border-color: white;
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
  text-decoration: none;
}

/* Responsive */
@media (max-width: 1199px) {
  .pf-ai-hero-title { font-size: 48px; }
  .pf-ai-cta-title { font-size: 42px; }
  .pf-ai-feature-card { padding: 50px 40px; }
}

@media (max-width: 991px) {
  .pf-ai-hero { padding: 100px 0 140px; }
  .pf-ai-hero-title { font-size: 40px; }
  .pf-ai-section-title { font-size: 32px; }
  .pf-ai-pillar-card { margin-bottom: 30px; }
  .pf-ai-cta-section { padding: 100px 0; }
  .pf-ai-cta-title { font-size: 36px; }
}

@media (max-width: 767px) {
  .pf-ai-hero { padding: 80px 0 120px; }
  .pf-ai-hero-title { font-size: 32px; letter-spacing: 0; }
  .pf-ai-hero-subtitle { font-size: 18px; }
  .pf-ai-section-title { font-size: 28px; }
  .pf-ai-feature-card { padding: 40px 30px; }
  .pf-ai-feature-title { font-size: 26px; }
  .pf-ai-cta-title { font-size: 28px; }
  .pf-ai-btn { width: 100%; justify-content: center; }
  .pf-ai-btn-group { width: 100%; padding: 0 20px; }
  .pf-ai-screenshot-wrapper { padding: 8px; }
  .pf-ai-colors-grid { grid-template-columns: 1fr; }
}

@media (max-width: 575px) {
  .pf-ai-hero { padding: 60px 0 100px; }
  .pf-ai-hero-title { font-size: 26px; }
  .pf-ai-year-badge { font-size: 11px; padding: 8px 16px; }
  .pf-ai-section-title { font-size: 24px; }
  .pf-ai-pillar-card { padding: 30px 25px; }
  .pf-ai-feature-card { padding: 35px 25px; }
  .pf-ai-feature-title { font-size: 22px; }
  .pf-ai-subsection-title { font-size: 20px; }
}