/* Base & Animation Keyframes */
@keyframes pf-ai-float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-15px); }
}

@keyframes pf-ai-float-slow {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(2deg); }
}

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

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

@keyframes pf-ai-pulse-line {
  0%, 100% { opacity: 0.3; transform: scaleX(1); }
  50% { opacity: 1; transform: scaleX(1.05); }
}

@keyframes pf-ai-reveal {
  from { clip-path: inset(0 100% 0 0); }
  to { clip-path: inset(0 0 0 0); }
}

/* Hero Section */
.pf-ai-hero {
  position: relative;
  padding: 140px 0 100px;
  background: #ffffff;
  overflow: hidden;
}

.pf-ai-hero::before {
  content: '';
  position: absolute;
  top: 10%;
  right: 5%;
  width: 300px;
  height: 300px;
  border: 1px solid #c2c2c2;
  border-radius: 50%;
  animation: pf-ai-float 8s ease-in-out infinite;
  pointer-events: none;
}

.pf-ai-hero::after {
  content: '';
  position: absolute;
  bottom: 20%;
  left: -5%;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(33, 33, 34, 0.03) 0%, transparent 70%);
  animation: pf-ai-float-slow 10s ease-in-out infinite;
  pointer-events: none;
}

.pf-ai-hero-label {
  font-family: 'Roboto Mono', monospace;
  font-size: 0.85rem;
  color: #f3541e;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  margin-bottom: 20px;
  display: block;
  animation: pf-ai-fade-in-up 0.8s ease-out;
}

.pf-ai-hero-title {
  font-family: 'Roboto', sans-serif;
  font-size: 4.5rem;
  font-weight: 300;
  color: #212122;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 30px;
  animation: pf-ai-fade-in-up 0.8s ease-out 0.1s both;
}

.pf-ai-hero-meta {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-bottom: 40px;
  animation: pf-ai-fade-in-up 0.8s ease-out 0.2s both;
}

.pf-ai-hero-year {
  font-family: 'Roboto Mono', monospace;
  font-size: 0.9rem;
  color: #212122;
  border: 1px solid #212122;
  padding: 8px 20px;
  border-radius: 25px;
  transition: all 0.3s ease-out;
}

.pf-ai-hero-year:hover {
  background: #212122;
  color: #ffffff;
}

.pf-ai-hero-desc {
  font-family: 'Roboto', sans-serif;
  font-size: 1.25rem;
  color: #586782;
  line-height: 1.6;
  max-width: 600px;
  font-weight: 300;
  animation: pf-ai-fade-in-up 0.8s ease-out 0.3s both;
}

.pf-ai-hero-line {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, #212122, #c2c2c2);
  margin-top: 40px;
  animation: pf-ai-pulse-line 3s ease-in-out infinite;
}

/* Screenshot Showcase Section */
.pf-ai-showcase {
  background: #eaf6f8;
  padding: 100px 0;
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
  width: 100vw;
  position: relative;
  overflow: hidden;
}

.pf-ai-showcase::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, #58b8cb, transparent);
  opacity: 0.5;
}

.pf-ai-showcase-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 15px;
}

.pf-ai-showcase-header {
  text-align: center;
  margin-bottom: 50px;
}

.pf-ai-showcase-label {
  font-family: 'Roboto Mono', monospace;
  font-size: 0.8rem;
  color: #58b8cb;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  display: block;
  margin-bottom: 10px;
}

.pf-ai-showcase-title {
  font-family: 'Roboto', sans-serif;
  font-size: 2rem;
  font-weight: 300;
  color: #212122;
}

.pf-ai-browser-mockup {
  background: #ffffff;
  border-radius: 10px;
  box-shadow: 0 2px 15px rgba(88, 184, 203, 0.1);
  padding: 20px;
  position: relative;
  transition: all 0.5s ease-out;
}

.pf-ai-browser-mockup:hover {
  box-shadow: 0 20px 60px rgba(33, 33, 34, 0.15);
  transform: translateY(-5px);
}

/* Concept Section */
.pf-ai-concept {
  padding: 120px 0;
  background: #ffffff;
}

.pf-ai-concept-header {
  margin-bottom: 40px;
}

.pf-ai-concept-lead {
  font-family: 'Roboto', sans-serif;
  font-size: 1.75rem;
  line-height: 1.4;
  color: #212122;
  font-weight: 300;
  margin-bottom: 30px;
}

.pf-ai-concept-text {
  font-family: 'Roboto', sans-serif;
  color: #586782;
  line-height: 1.9;
  font-size: 1.05rem;
  column-count: 1;
}

.pf-ai-concept-text p {
  margin-bottom: 20px;
}

.pf-ai-concept-divider {
  width: 40px;
  height: 3px;
  background: #212122;
  margin: 40px 0;
}

/* Color Palette Section */
.pf-ai-palette {
  background: #212122;
  padding: 100px 0;
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
  width: 100vw;
  position: relative;
}

.pf-ai-palette::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(88, 184, 203, 0.05) 0%, rgba(243, 84, 30, 0.05) 100%);
  pointer-events: none;
}

.pf-ai-palette-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 15px;
  position: relative;
  z-index: 1;
}

.pf-ai-palette-header {
  text-align: center;
  margin-bottom: 60px;
}

.pf-ai-palette-title {
  font-family: 'Roboto', sans-serif;
  font-size: 2.5rem;
  font-weight: 300;
  color: #ffffff;
  margin-bottom: 10px;
}

.pf-ai-palette-subtitle {
  font-family: 'Roboto Mono', monospace;
  color: #c2c2c2;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
}

.pf-ai-color-swatch {
  border-radius: 10px;
  padding: 50px 30px;
  text-align: center;
  transition: all 0.5s ease-out;
  position: relative;
  overflow: hidden;
  height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.pf-ai-color-swatch::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.5s ease-out;
}

.pf-ai-color-swatch:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.pf-ai-color-swatch:hover::before {
  opacity: 1;
}

.pf-ai-color-name {
  font-family: 'Roboto', sans-serif;
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}

.pf-ai-color-hex {
  font-family: 'Roboto Mono', monospace;
  font-size: 0.9rem;
  opacity: 0.8;
  position: relative;
  z-index: 1;
  letter-spacing: 0.05em;
}

/* Features Section */
.pf-ai-features {
  padding: 120px 0;
  background: #ffffff;
}

.pf-ai-section-header {
  text-align: center;
  margin-bottom: 60px;
}

.pf-ai-section-label {
  font-family: 'Roboto Mono', monospace;
  font-size: 0.8rem;
  color: #f3541e;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  display: block;
  margin-bottom: 15px;
}

.pf-ai-section-title {
  font-family: 'Roboto', sans-serif;
  font-size: 2.5rem;
  font-weight: 300;
  color: #212122;
}

.pf-ai-feature-grid {
  display: flex;
  justify-content: center;
}

.pf-ai-feature-card {
  background: #ffffff;
  border: 1px solid #c2c2c2;
  border-radius: 6px;
  padding: 50px 40px;
  transition: all 0.5s ease-out;
  position: relative;
  overflow: hidden;
  text-align: center;
  max-width: 400px;
}

.pf-ai-feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #212122, #c2c2c2);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease-out;
}

.pf-ai-feature-card:hover {
  border-color: #212122;
  box-shadow: 0 2px 15px rgba(88, 184, 203, 0.3);
  transform: translateY(-8px);
}

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

.pf-ai-feature-icon {
  width: 80px;
  height: 80px;
  background: #212122;
  border-radius: 50%;
  margin: 0 auto 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease-out;
}

.pf-ai-feature-card:hover .pf-ai-feature-icon {
  background: #f3541e;
  transform: scale(1.1) rotate(5deg);
}

.pf-ai-feature-icon svg {
  width: 32px;
  height: 32px;
  stroke: #ffffff;
  fill: none;
  stroke-width: 1.5;
}

.pf-ai-feature-title {
  font-family: 'Roboto', sans-serif;
  font-size: 1.5rem;
  color: #212122;
  margin-bottom: 15px;
  font-weight: 500;
}

.pf-ai-feature-desc {
  font-family: 'Roboto', sans-serif;
  color: #586782;
  line-height: 1.7;
  font-size: 1rem;
}

/* Meta/Tags Section */
.pf-ai-meta {
  padding: 80px 0;
  background: #f8f9fa;
  border-top: 1px solid #eaf6f8;
}

.pf-ai-meta-header {
  text-align: center;
  margin-bottom: 40px;
}

.pf-ai-meta-title {
  font-family: 'Roboto', sans-serif;
  font-size: 1.5rem;
  color: #2e2e2e;
  font-weight: 400;
}

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

.pf-ai-tag-list li {
  margin: 0;
}

.pf-ai-tag-list a {
  display: inline-block;
  padding: 10px 24px;
  background: #ffffff;
  border: 1px solid #c2c2c2;
  border-radius: 25px;
  color: #212122;
  font-family: 'Roboto Mono', monospace;
  font-size: 0.85rem;
  text-decoration: none;
  transition: all 0.3s ease-out;
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.pf-ai-tag-list a:hover {
  background: #212122;
  color: #ffffff;
  border-color: #212122;
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(33, 33, 34, 0.2);
}

.pf-ai-meta h4 {
  font-family: 'Roboto Mono', monospace;
  font-size: 0.75rem;
  color: #949c9e;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin: 30px 0 15px;
  text-align: center;
}

.pf-ai-meta h4:first-child {
  margin-top: 0;
}

/* CTA Section */
.pf-ai-cta {
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
  width: 100vw;
  background: linear-gradient(135deg, #212122 0%, #2e2e2e 100%);
  padding: 120px 0;
  position: relative;
  overflow: hidden;
}

.pf-ai-cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(88, 184, 203, 0.1) 0%, transparent 50%);
  animation: pf-ai-float 20s ease-in-out infinite;
}

.pf-ai-cta::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, #58b8cb, transparent);
  opacity: 0.5;
}

.pf-ai-cta-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 15px;
  position: relative;
  z-index: 1;
  text-align: center;
}

.pf-ai-cta-title {
  font-family: 'Roboto', sans-serif;
  font-size: 3rem;
  font-weight: 300;
  color: #ffffff;
  margin-bottom: 20px;
  line-height: 1.2;
}

.pf-ai-cta-text {
  font-family: 'Roboto', sans-serif;
  font-size: 1.2rem;
  color: #c2c2c2;
  margin-bottom: 50px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

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

.pf-ai-btn-primary {
  display: inline-block;
  padding: 18px 40px;
  background: #f3541e;
  color: #ffffff;
  border-radius: 25px;
  text-decoration: none;
  font-family: 'Roboto', sans-serif;
  font-weight: 500;
  font-size: 1rem;
  transition: all 0.3s ease-out;
  border: 2px solid #f3541e;
  box-shadow: 0 4px 15px rgba(243, 84, 30, 0.3);
}

.pf-ai-btn-primary:hover {
  background: transparent;
  color: #f3541e;
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(243, 84, 30, 0.4);
  text-decoration: none;
}

.pf-ai-btn-secondary {
  display: inline-block;
  padding: 18px 40px;
  background: transparent;
  color: #ffffff;
  border-radius: 25px;
  text-decoration: none;
  font-family: 'Roboto', sans-serif;
  font-weight: 500;
  font-size: 1rem;
  transition: all 0.3s ease-out;
  border: 2px solid #58b8cb;
  cursor: pointer;
}

.pf-ai-btn-secondary:hover {
  background: #58b8cb;
  color: #ffffff;
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(88, 184, 203, 0.3);
  text-decoration: none;
}

/* Responsive Breakpoints */
@media (max-width: 1199px) {
  .pf-ai-hero-title { font-size: 4rem; }
  .pf-ai-cta-title { font-size: 2.5rem; }
}

@media (max-width: 991px) {
  .pf-ai-hero { padding: 100px 0 80px; }
  .pf-ai-hero-title { font-size: 3.2rem; }
  .pf-ai-concept { padding: 80px 0; }
  .pf-ai-features { padding: 80px 0; }
  .pf-ai-cta { padding: 100px 0; }
  .pf-ai-cta-title { font-size: 2.2rem; }
}

@media (max-width: 767px) {
  .pf-ai-hero-title { font-size: 2.5rem; }
  .pf-ai-hero-meta { flex-direction: column; align-items: flex-start; gap: 15px; }
  .pf-ai-concept-lead { font-size: 1.4rem; }
  .pf-ai-palette-title { font-size: 2rem; }
  .pf-ai-section-title { font-size: 2rem; }
  .pf-ai-cta-title { font-size: 1.8rem; }
  .pf-ai-btn-group { flex-direction: column; align-items: center; }
  .pf-ai-btn-primary, .pf-ai-btn-secondary { width: 100%; max-width: 300px; text-align: center; }
}

@media (max-width: 575px) {
  .pf-ai-hero { padding: 80px 0 60px; }
  .pf-ai-hero-title { font-size: 2rem; }
  .pf-ai-hero-label { font-size: 0.75rem; }
  .pf-ai-showcase { padding: 60px 0; }
  .pf-ai-color-swatch { height: 200px; padding: 30px 20px; }
  .pf-ai-feature-card { padding: 40px 30px; }
  .pf-ai-cta { padding: 80px 0; }
  .pf-ai-cta-title { font-size: 1.5rem; }
}