/**
 * Homepage Specific Styles
 * Builds on top of design-system.css
 */

/* ============================================================================
   NAVIGATION
   ============================================================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background: rgba(10, 14, 39, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-base);
}

[data-theme="light"] .header {
  background: rgba(255, 255, 255, 0.8);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  gap: var(--space-lg);
}

.nav-brand {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.logo-bracket {
  color: var(--accent-primary);
  font-size: 1.75rem;
}

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

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
  margin: 0;
}

.nav-link {
  font-weight: 500;
  color: var(--text-secondary);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 80%;
  height: 2px;
  background: var(--gradient-primary);
  transition: transform var(--transition-base);
}

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

.nav-link:hover::after,
.nav-link.active::after {
  transform: translateX(-50%) scaleX(1);
}

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

.btn-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--text-primary);
  font-size: 1.2rem;
}

.btn-icon:hover {
  background: var(--bg-elevated);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.mobile-menu-toggle {
  display: none;
}

/* ============================================================================
   HERO SECTION
   ============================================================================ */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: calc(60px + var(--space-3xl)) 0 var(--space-3xl);
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}

.grid-pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(var(--border-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
  background-size: 50px 50px;
  opacity: 0.3;
}

#particle-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero-greeting {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.terminal-prompt {
  color: var(--accent-primary);
}

.typing-text {
  color: var(--text-primary);
}

.cursor {
  color: var(--accent-primary);
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: var(--space-lg);
  line-height: 1.1;
}

.hero-subtitle {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
}

.role-badge {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent-primary);
  background: var(--bg-tertiary);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-accent);
}

.role-separator {
  color: var(--text-tertiary);
}

.hero-description {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--border-color);
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-primary);
  font-family: var(--font-display);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Terminal Window */
.hero-visual {
  position: relative;
}

.terminal-window {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
}

.terminal-button {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal-button.red { background: #ff5f56; }
.terminal-button.yellow { background: #ffbd2e; }
.terminal-button.green { background: #27c93f; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-left: auto;
}

.terminal-body {
  padding: var(--space-xl);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.8;
}

.terminal-line {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.terminal-prompt {
  color: var(--accent-primary);
  font-weight: 600;
}

.terminal-command {
  color: var(--accent-secondary);
}

.terminal-output {
  color: var(--text-secondary);
  padding-left: calc(var(--space-sm) * 3);
}

.terminal-cursor {
  color: var(--accent-primary);
  animation: blink 1s infinite;
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-tertiary);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition-base);
}

.scroll-indicator:hover {
  color: var(--accent-primary);
  transform: translateX(-50%) translateY(-5px);
}

.mouse {
  width: 24px;
  height: 36px;
  border: 2px solid currentColor;
  border-radius: 12px;
  position: relative;
}

.wheel {
  width: 3px;
  height: 8px;
  background: currentColor;
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 2px;
  animation: scroll 2s ease-in-out infinite;
}

@keyframes scroll {
  0% { opacity: 1; top: 8px; }
  100% { opacity: 0; top: 20px; }
}

/* ============================================================================
   ABOUT SECTION
   ============================================================================ */

.about-section {
  background: var(--bg-secondary);
}

.about-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.about-intro {
  font-size: 1.125rem;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}

.about-highlights {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.highlight-item i {
  color: var(--accent-primary);
}

.about-image {
  position: relative;
}

.image-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 1;
}

.image-placeholder {
  width: 100%;
  height: 100%;
  background: var(--gradient-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-primary);
}

.image-border {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  right: calc(var(--space-md) * -1);
  bottom: calc(var(--space-md) * -1);
  border: 2px solid var(--accent-primary);
  border-radius: var(--radius-lg);
  z-index: -1;
}

/* ============================================================================
   SKILLS SECTION
   ============================================================================ */

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.skill-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform var(--transition-base);
  transform-origin: left;
}

.skill-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-primary);
}

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

.skill-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  font-size: 2rem;
  color: var(--accent-primary);
  margin-bottom: var(--space-lg);
}

.skill-title {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

.skill-description {
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* ============================================================================
   PROJECTS SECTION
   ============================================================================ */

.projects-section {
  background: var(--bg-secondary);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.project-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-primary);
}

.project-image {
  width: 100%;
  height: 200px;
  background: var(--gradient-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  font-size: 3rem;
  position: relative;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-content {
  padding: var(--space-xl);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-title {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.project-description {
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  line-height: 1.6;
  flex: 1;
}

.project-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  color: var(--text-tertiary);
  font-size: 0.875rem;
}

.project-meta i {
  color: var(--accent-primary);
}

.project-links {
  display: flex;
  gap: var(--space-sm);
}

.projects-cta {
  text-align: center;
}

.skeleton-card {
  height: 400px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.skeleton-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.05),
    transparent
  );
  animation: skeleton-loading 1.5s infinite;
}

/* ============================================================================
   CONTACT SECTION
   ============================================================================ */

.contact-section {
  background: var(--bg-secondary);
}

.contact-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.contact-intro {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  line-height: 1.7;
}

.contact-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
}

.contact-card {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-xl);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  text-decoration: none;
  text-align: left;
}

.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-primary);
}

.contact-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  font-size: 1.5rem;
  color: var(--accent-primary);
  flex-shrink: 0;
}

.contact-info h4 {
  font-size: 1rem;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}

.contact-info p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 0;
}

/* ============================================================================
   FOOTER
   ============================================================================ */

.footer {
  padding: var(--space-2xl) 0;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
}

.footer-content {
  text-align: center;
}

.footer-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.footer-copy {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin: 0;
}

/* ============================================================================
   SECTION NUMBERS
   ============================================================================ */

.section-number {
  font-family: var(--font-mono);
  color: var(--accent-primary);
  font-size: 1.5rem;
  margin-right: var(--space-sm);
}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */

@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
    max-width: 500px;
    margin: 0 auto;
  }

  .about-content {
    grid-template-columns: 1fr;
  }

  .about-image {
    max-width: 300px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .hero {
    padding: calc(60px + var(--space-2xl)) 0 var(--space-2xl);
  }

  .hero-stats {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .hero-cta {
    flex-direction: column;
  }

  .hero-cta .btn {
    width: 100%;
    justify-content: center;
  }

  .about-highlights {
    grid-template-columns: 1fr;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .contact-links {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-subtitle {
    flex-direction: column;
    align-items: flex-start;
  }

  .role-separator {
    display: none;
  }

  .terminal-body {
    padding: var(--space-md);
    font-size: 0.8rem;
  }
}