/* Main Layout & Sections */

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(var(--blur-lg));
  border-bottom: 1px solid var(--color-border-subtle);
  transition: all var(--transition-base);
}

.nav.scrolled {
  background: rgba(10, 10, 15, 0.95);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

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

.logo-wrapper {
  z-index: 2;
}

.logo {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

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

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-link {
  position: relative;
  color: var(--color-text-secondary);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  text-decoration: none;
  padding: var(--space-2) 0;
  transition: color var(--transition-base);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-accent-gradient);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Mobile menu button */
.nav-menu-button {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: var(--space-2);
  cursor: pointer;
  z-index: 3;
}

.menu-icon-line-top,
.menu-icon-line-bottom {
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  transition: all var(--transition-base);
}

.nav-menu-button.active .menu-icon-line-top {
  transform: rotate(45deg) translateY(8px);
}

.nav-menu-button.active .menu-icon-line-bottom {
  transform: rotate(-45deg) translateY(-8px);
}

/* Scroll progress indicator */
.scroll-progress {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  height: 3px;
  background: var(--color-accent-gradient);
  transform-origin: left;
  z-index: var(--z-fixed);
  transition: transform 0.1s ease-out;
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--color-bg-primary);
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(59, 130, 246, 0.15) 0%,
    transparent 50%
  );
  animation: pulse 8s ease-in-out infinite;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 1100px;
  padding: var(--space-8);
}

.hero-title {
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  line-height: 1.2;
  margin-bottom: var(--space-6);
  color: var(--color-text-primary);
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  line-height: 1.6;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-12);
  margin-top: var(--space-12);
  flex-wrap: wrap;
}

.hero-stat {
  text-align: center;
}

.hero-stat-value {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: var(--space-2);
}

.hero-stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-cta {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  margin-top: var(--space-8);
  flex-wrap: wrap;
}

/* Video container */
.video-container {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: var(--radius-xl);
}

.video-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10, 10, 15, 0.4) 0%,
    rgba(10, 10, 15, 0.8) 100%
  );
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

/* About Section */
.about-section {
  background: var(--color-bg-secondary);
  position: relative;
}

.about-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  max-width: 900px;
  margin: 0 auto;
}

.about-text h2 {
  margin-bottom: var(--space-6);
}

.about-text p {
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-6);
}

/* Expertise Section */
.expertise-section {
  background: var(--color-bg-primary);
}

.expertise-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--space-16);
}

.expertise-header h2 {
  margin-bottom: var(--space-4);
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-12);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.expertise-card {
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  border: 2px solid transparent;
  transition: all var(--transition-base);
  position: relative;
}

/* Alternating gradient colors for creative intertwined layout */
.expertise-card:nth-child(1) {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  transform: translateY(-20px);
}

.expertise-card:nth-child(2) {
  background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
  transform: translateY(20px);
}

.expertise-card:nth-child(3) {
  background: linear-gradient(135deg, #0891b2 0%, #0e7490 100%);
  transform: translateY(-20px);
}

.expertise-card:nth-child(4) {
  background: linear-gradient(135deg, #10b981 0%, #047857 100%);
  transform: translateY(20px);
}

.expertise-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  border-color: rgba(255, 255, 255, 0.2);
}

.expertise-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-4);
  color: rgba(255, 255, 255, 0.95);
  opacity: 1;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.expertise-card h3 {
  margin-bottom: var(--space-4);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: #ffffff;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.expertise-card p {
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.7;
}

.expertise-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.expertise-list li {
  padding-left: var(--space-6);
  margin-bottom: var(--space-3);
  position: relative;
  color: rgba(255, 255, 255, 0.95);
  line-height: 1.6;
}

.expertise-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: rgba(255, 255, 255, 0.7);
  font-weight: var(--font-bold);
}

/* Portfolio Section */
.portfolio-section {
  background: var(--color-bg-secondary);
}

.portfolio-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.portfolio-header h2 {
  margin-bottom: var(--space-4);
}

.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
  flex-wrap: wrap;
}

.filter-btn {
  padding: var(--space-3) var(--space-6);
  background: var(--color-surface-glass);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  cursor: pointer;
  transition: all var(--transition-base);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--color-accent-gradient);
  border-color: transparent;
  color: var(--color-text-primary);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  grid-auto-rows: 20px;
  gap: var(--space-6);
}

.portfolio-item {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-bg-elevated);
  transition: all var(--transition-base);
  cursor: pointer;
}

/* Main portfolio - landscape videos - standard size */
.portfolio-item[data-category="mobile"],
.portfolio-item[data-category="multiplayer"] {
  grid-row: span 12;
}

/* Contract work - all items same height for clean look */
.portfolio-item-portrait,
.portfolio-item-landscape {
  grid-row: span 14;
}

/* Portrait videos - taller */
.portfolio-item[data-category="casual"]:nth-child(4),
.portfolio-item[data-category="casual"]:nth-child(6) {
  grid-row: span 16;
}

/* Square-ish videos */
.portfolio-item[data-category="casual"]:nth-child(5) {
  grid-row: span 14;
}

/* Prototype videos - varied sizes */
.portfolio-item[data-category="prototype"]:nth-child(7) {
  grid-row: span 16;
}

.portfolio-item[data-category="prototype"]:nth-child(8) {
  grid-row: span 14;
}

.portfolio-item[data-category="casual"]:nth-child(9) {
  grid-row: span 14;
}

/* New prototype item - Fly Short (10th child) */
.portfolio-item[data-category="prototype"]:nth-child(10) {
  grid-row: span 14;
}

.portfolio-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.portfolio-item video {
  width: 100%;
  height: 100%;
  min-height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform var(--transition-slow);
}

.portfolio-item:hover video {
  transform: scale(1.05);
}

.portfolio-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-6);
  background: linear-gradient(to top, rgba(0, 0, 0, 0.98) 0%, rgba(0, 0, 0, 0.92) 50%, rgba(0, 0, 0, 0.7) 80%, transparent 100%);
  transform: translateY(100%);
  transition: transform var(--transition-base);
  z-index: 2;
}

.portfolio-item:hover .portfolio-content {
  transform: translateY(0);
}

.portfolio-title {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-2);
  color: var(--color-text-primary);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.portfolio-description {
  color: var(--color-text-secondary);
  line-height: 1.5;
  font-size: var(--text-sm);
  margin-bottom: var(--space-3);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.portfolio-tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

/* Contact Section */
.contact-section {
  background: var(--color-bg-primary);
}

.contact-container {
  max-width: 600px;
  margin: 0 auto;
}

.contact-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.contact-header h2 {
  margin-bottom: var(--space-4);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
}

.social-links {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
  margin-top: var(--space-12);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--color-surface-glass);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  transition: all var(--transition-base);
}

.social-link:hover {
  background: var(--color-accent-gradient);
  border-color: transparent;
  color: var(--color-text-primary);
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(59, 130, 246, 0.3);
}

/* Footer */
.footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border-subtle);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-12);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.footer-column h4 {
  margin-bottom: var(--space-4);
  font-size: var(--text-lg);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-link {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-accent-primary);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border-subtle);
  color: var(--color-text-tertiary);
  font-size: var(--text-sm);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .about-content {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }
  
  .portfolio-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(var(--blur-xl));
    flex-direction: column;
    justify-content: center;
    gap: var(--space-6);
    transform: translateX(100%);
    transition: transform var(--transition-base);
  }
  
  .nav-menu.active {
    transform: translateX(0);
  }
  
  .nav-menu-button {
    display: flex;
  }
  
  .hero-stats {
    gap: var(--space-6);
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  
  .expertise-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: var(--text-3xl);
  }
  
  .hero-subtitle {
    font-size: var(--text-base);
  }
  
  .section {
    padding: var(--space-16) 0;
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
  }
  
  .portfolio-item[data-category="mobile"],
  .portfolio-item[data-category="multiplayer"],
  .portfolio-item[data-category="casual"],
  .portfolio-item[data-category="prototype"] {
    grid-row: auto;
  }
}