/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 1.5rem 0;
  z-index: 100;
  transition: background-color var(--transition-fast), backdrop-filter var(--transition-fast);
}

.site-header.scrolled {
  background-color: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  position: relative;
  z-index: 101;
}

.logo span {
  color: var(--color-accent);
}

.primary-menu {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.primary-menu a {
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 0.5rem 0;
}

.primary-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-fast);
}

.primary-menu a:hover::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 101;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 5rem;
}

.hero-content {
  max-width: 800px;
}

.hero-greeting {
  font-size: 1.25rem;
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 1rem;
  display: block;
}

.hero-title {
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  color: var(--color-text-muted);
  max-width: 600px;
  margin-bottom: 3rem;
}

.hero-cta {
  display: flex;
  gap: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  font-weight: 600;
  border-radius: 50px;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #fff;
  border: 1px solid var(--color-accent);
}

.btn-primary:hover {
  background-color: transparent;
  color: var(--color-accent);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-text);
}

/* ==========================================================================
   About Section
   ========================================================================== */
.section-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: 3rem;
  position: relative;
  display: inline-block;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about-text p {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  background: var(--color-surface);
  padding: 3rem;
  border-radius: 24px;
  border: 1px solid var(--color-border);
}

.stat-item h3 {
  font-size: 3rem;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.stat-item p {
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ==========================================================================
   Services Section
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.service-card {
  background: var(--color-surface);
  padding: 3rem 2rem;
  border-radius: 24px;
  border: 1px solid var(--color-border);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.service-card:hover {
  transform: translateY(-10px);
  border-color: var(--color-accent);
}

.service-icon {
  font-size: 2.5rem;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
}

.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.service-card p {
  color: var(--color-text-muted);
}

/* ==========================================================================
   Projects Section
   ========================================================================== */
.projects-list {
  display: flex;
  flex-direction: column;
  gap: 6rem;
}

.project-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.project-item:nth-child(even) {
  direction: rtl;
}

.project-item:nth-child(even) .project-content {
  direction: ltr;
}

.project-image {
  border-radius: 24px;
  overflow: hidden;
  position: relative;
  aspect-ratio: 4/3;
  background: var(--color-surface);
}

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

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

.project-meta {
  font-size: 0.9rem;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  display: block;
}

.project-title {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.project-desc {
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  font-size: 1.1rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.tag {
  background: var(--color-surface);
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  border: 1px solid var(--color-border);
}

/* ==========================================================================
   Tools Section
   ========================================================================== */
.tools-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.tool-item {
  background: var(--color-surface);
  padding: 1rem 2rem;
  border-radius: 50px;
  border: 1px solid var(--color-border);
  font-weight: 500;
  transition: background-color var(--transition-fast);
}

.tool-item:hover {
  background-color: var(--color-surface-hover);
  border-color: var(--color-accent);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--color-border);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 4rem;
}

.footer-cta h2 {
  font-size: clamp(2rem, 4vw, 4rem);
  margin-bottom: 1rem;
}

.footer-cta p {
  color: var(--color-text-muted);
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.social-links {
  display: flex;
  gap: 1.5rem;
}

.social-links a:hover {
  color: var(--color-accent);
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 992px) {
  .about-grid, .project-item {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .project-item:nth-child(even) {
    direction: ltr;
  }
}

@media (max-width: 768px) {
  .primary-menu {
    display: none; /* Mobile menu styling would go here, simplified for now */
  }
  
  .menu-toggle {
    display: block;
  }
  
  .footer-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 2rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}