/* ========================================
   HERO SECTION
   ======================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: 8rem 2rem 4rem;
}

/* Floating orbs with faster animation */
.floating-orb {
  position: absolute;
  border-radius: 50%;
  background: linear-gradient(135deg, hsl(var(--primary) / 0.3), hsl(var(--chart-1) / 0.2));
  filter: blur(50px);
  animation: float 6s ease-in-out infinite;
}

/* Faster float */
@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-25px) rotate(180deg); }
}

/* ========================================
   ANIMATIONS (GSAP Powered)
   ======================================== */
.fade-in { opacity: 0; transform: translateY(30px); }
.scale-in { opacity: 0; transform: scale(0.9); }
.slide-in-left { opacity: 0; transform: translateX(-50px); }
.slide-in-right { opacity: 0; transform: translateX(50px); }

/* ========================================
   FORM MESSAGES
   ======================================== */
.form-message {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 0.5rem;
  font-weight: 500;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.3s ease;
}

.form-message.show { opacity: 1; transform: translateY(0); }
.form-message.success { color: #10b981; background: rgba(16, 185, 129, 0.1); border-left: 4px solid #10b981; }
.form-message.error { color: #ef4444; background: rgba(239, 68, 68, 0.1); border-left: 4px solid #ef4444; }

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
  .desktop-only { display: none !important; }
  .mobile-only { display: block; }
}

/* ========================================
   CASE STUDIES SECTION
   ======================================== */
#case-studies {
  background: hsl(var(--card));
  padding: 8rem 2rem;
}

.case-studies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 2.5rem;
  max-width: 1280px;
  margin: 0 auto;
}

.case-study-card {
  background: hsl(var(--background));
  border: 1px solid hsl(var(--border) / 0.5);
  border-radius: 1.25rem;
  overflow: hidden;
  transition: all 0.4s ease;
  box-shadow: 0 4px 15px hsl(var(--primary) / 0.05);
}

.case-study-card:hover {
  transform: translateY(-12px) scale(1.02);
  box-shadow: 0 25px 50px hsl(var(--primary) / 0.15);
}

.case-study-header {
  padding: 1.75rem 2rem 1rem;
  border-bottom: 1px solid hsl(var(--border) / 0.3);
}

.case-study-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, hsl(var(--primary)), hsl(var(--chart-1)));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.case-study-tag {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.35rem 0.75rem;
  border-radius: 2rem;
  background: hsl(var(--primary) / 0.15);
  color: hsl(var(--primary));
}

.case-study-content {
  padding: 2rem;
}

.case-study-block {
  margin-bottom: 1.5rem;
}

.case-study-block h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: hsl(var(--foreground));
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.case-study-block h4 i {
  color: hsl(var(--primary));
}

.case-study-block p {
  color: hsl(var(--muted-foreground));
  line-height: 1.7;
  font-size: 0.95rem;
}

.case-study-block ul {
  list-style: none;
  padding-left: 0;
}

.impact-list {
  display: grid;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.impact-list li {
  font-size: 0.95rem;
  color: hsl(var(--foreground));
}

.impact-list strong {
  color: hsl(var(--primary));
  font-weight: 700;
}

.highlight {
  background: hsl(var(--accent) / 0.3);
  padding: 1rem;
  border-radius: 0.75rem;
  border-left: 4px solid hsl(var(--primary));
}

.testimonial {
  margin: 1.5rem 0 0;
  padding: 1.25rem;
  background: hsl(var(--muted) / 0.3);
  border-radius: 0.75rem;
  font-style: italic;
  color: hsl(var(--foreground));
  border-left: 3px solid hsl(var(--primary));
}

.testimonial p {
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
  line-height: 1.6;
}

.testimonial cite {
  display: block;
  font-weight: 600;
  font-style: normal;
  color: hsl(var(--primary));
  font-size: 0.85rem;
  text-align: right;
}

.case-study-link {
  display: block;
  text-align: center;
  padding: 1rem;
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.case-study-link:hover {
  background: hsl(var(--primary) / 0.9);
  transform: translateY(-2px);
}

/* Responsive */
@media (max-width: 768px) {
  .case-studies-grid {
    grid-template-columns: 1fr;
  }
  .case-study-header, .case-study-content {
    padding: 1.5rem;
  }
}


/* ========================================
   PRICING SECTION
   ======================================== */
#pricing {
  background: hsl(var(--background));
  padding: 8rem 2rem;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
  max-width: 1280px;
  margin: 0 auto 4rem;
}

.pricing-card {
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border) / 0.5);
  border-radius: 1.5rem;
  padding: 2rem;
  text-align: center;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 15px hsl(var(--primary) / 0.05);
}

.pricing-card:hover {
  transform: translateY(-12px) scale(1.03);
  box-shadow: 0 25px 50px hsl(var(--primary) / 0.15);
}

.popular {
  border: 2px solid hsl(var(--primary));
  transform: scale(1.05);
}

.popular-badge {
  position: absolute;
  top: 0;
  right: 0;
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.5rem 1rem;
  border-radius: 0 1.5rem 0 1rem;
  letter-spacing: 0.05em;
}

.pricing-header {
  margin-bottom: 1.5rem;
}

.pricing-title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, hsl(var(--primary)), hsl(var(--chart-1)));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.pricing-tag {
  color: hsl(var(--muted-foreground));
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.pricing-price {
  font-size: 2.5rem;
  font-weight: 800;
  color: hsl(var(--foreground));
  margin-bottom: 0.5rem;
}

.currency {
  font-size: 1.5rem;
  vertical-align: top;
}

.note {
  font-size: 0.8rem;
  color: hsl(var(--muted-foreground));
  font-weight: 500;
  display: block;
  margin-top: 0.25rem;
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin: 1.5rem 0;
  padding-left: 0.5rem;
}

.pricing-features li {
  font-size: 0.95rem;
  color: hsl(var(--foreground));
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pricing-features i {
  color: hsl(var(--primary));
  font-size: 1.1rem;
}

.pricing-btn {
  width: 100%;
  padding: 1rem;
  font-weight: 600;
  border-radius: 0.75rem;
  text-align: center;
  margin-top: 1rem;
}

/* Enterprise CTA */
.enterprise-cta {
  text-align: center;
  max-width: 800px;
  margin: 4rem auto 0;
  padding: 2.5rem;
  background: hsl(var(--muted) / 0.3);
  border-radius: 1.25rem;
  border: 1px dashed hsl(var(--border));
}

.enterprise-cta h3 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, hsl(var(--primary)), hsl(var(--chart-1)));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.enterprise-cta p {
  color: hsl(var(--muted-foreground));
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.enterprise-cta .btn-outline {
  padding: 1rem 2rem;
  font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .popular {
    transform: none;
  }
}


/* ========================================
   TECH STACK SECTION
   ======================================== */
#tech-stack {
  background: hsl(var(--card));
  padding: 8rem 2rem;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
  max-width: 1280px;
  margin: 0 auto;
}

.tech-category {
  background: hsl(var(--background));
  border: 1px solid hsl(var(--border) / 0.5);
  border-radius: 1.5rem;
  padding: 2rem;
  transition: all 0.4s ease;
  box-shadow: 0 4px 15px hsl(var(--primary) / 0.05);
}

.tech-category:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px hsl(var(--primary) / 0.12);
  border-color: hsl(var(--primary) / 0.3);
}

.tech-cat-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  text-align: center;
  background: linear-gradient(135deg, hsl(var(--primary)), hsl(var(--chart-1)));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tech-items {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.tech-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 80px;
  text-align: center;
  padding: 0.75rem;
  border-radius: 1rem;
  transition: all 0.3s ease;
  cursor: default;
}

.tech-item:hover {
  background: hsl(var(--accent));
  transform: translateY(-4px) scale(1.1);
  box-shadow: 0 8px 20px hsl(var(--primary) / 0.2);
}

.tech-item img {
  width: 42px;
  height: 42px;
  object-fit: contain;
  margin-bottom: 0.5rem;
  filter: grayscale(0%) brightness(1);
  transition: filter 0.3s ease;
}

.tech-item:hover img {
  filter: grayscale(0%) brightness(1.2);
}

.tech-item span {
  font-size: 0.8rem;
  font-weight: 600;
  color: hsl(var(--foreground));
  white-space: nowrap;
}

/* Fallback for OpenAI logo */
.tech-item img[onerror] {
  content: url('https://upload.wikimedia.org/wikipedia/commons/4/4d/OpenAI_Logo.svg');
}

/* Responsive */
@media (max-width: 768px) {
  .tech-grid {
    grid-template-columns: 1fr;
  }
  .tech-item {
    width: 70px;
  }
  .tech-item img {
    width: 36px;
    height: 36px;
  }
}



.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  max-width: 1280px;
  margin: 0 auto;
}

.blog-card {
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border) / 0.5);
  border-radius: 1.25rem;
  overflow: hidden;
  transition: all 0.4s ease;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 4px 15px hsl(var(--primary) / 0.05);
}

.blog-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 25px 50px hsl(var(--primary) / 0.15);
}

.blog-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 5px;
  background: linear-gradient(135deg, hsl(var(--primary)), hsl(var(--chart-1)));
  transform: scaleX(0);
  transition: transform 0.4s ease;
}

.blog-card:hover::before {
  transform: scaleX(1);
}

.blog-card-inner {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.blog-date {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  color: hsl(var(--primary));
  font-weight: 600;
  font-size: 0.9rem;
}

.date-day {
  background: hsl(var(--primary) / 0.1);
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  font-weight: 700;
}

.blog-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  background: linear-gradient(135deg, hsl(var(--primary)), hsl(var(--chart-1)));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.blog-description {
  color: hsl(var(--muted-foreground));
  line-height: 1.7;
  flex-grow: 1;
  margin-bottom: 1rem;
}

.blog-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid hsl(var(--border) / 0.5);
  font-size: 0.9rem;
}

.read-time { color: hsl(var(--muted-foreground)); }
.blog-link { color: hsl(var(--primary)); font-weight: 600; }
.blog-link:hover { transform: translateX(4px); }

.loading-placeholder, .error-card {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3rem;
  color: hsl(var(--muted-foreground));
}

.loading-placeholder i { font-size: 2rem; margin-bottom: 1rem; color: hsl(var(--primary)); }

@media (max-width: 768px) {
  .blog-card-inner { padding: 1.5rem; }
  .blog-title { font-size: 1.2rem; }
}