/* =============================================================================
   CYBERPUNK PORTFOLIO DESIGN SYSTEM
   ============================================================================= */

:root {
  /* Cyberpunk Colors */
  --bg-dark: #0a0a0a;
  --bg-medium: #1a1a1a;
  --bg-light: #2a2a2a;
  --accent-cyan: #00ffff;
  --accent-magenta: #ff00ff;
  --accent-yellow: #ffff00;
  --grid-color: rgba(0, 255, 255, 0.1);
  --grid-color-bright: rgba(0, 255, 255, 0.4);
  
  /* Text Colors */
  --white: #ffffff;
  --gray-light: #cccccc;
  --gray-medium: #888888;
  --gray-dark: #444444;
  
  /* Typography */
  --font-primary: "Open Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Shadows */
  --shadow-cyan: 0 0 20px rgba(0, 255, 255, 0.3);
  --shadow-magenta: 0 0 20px rgba(255, 0, 255, 0.3);
  --shadow-glow: 0 0 30px rgba(0, 255, 255, 0.2);
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* =============================================================================
   RESET & BASE STYLES
   ============================================================================= */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-primary);
  font-weight: var(--font-weight-normal);
  font-size: 16px;
  line-height: 1.6;
  color: var(--white);
  background-color: var(--bg-dark);
  overflow-x: hidden;
}

/* =============================================================================
   ANIMATED GRID BACKGROUND
   ============================================================================= */

.grid-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  background-image: 
    linear-gradient(rgba(0, 255, 255, 0.15) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 255, 0.15) 1px, transparent 1px);
  background-size: 40px 40px;
  animation: gridMove 13s linear infinite;
}

.grid-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(0, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 200px 200px;
  animation: gridMove 20s linear infinite reverse;
}

@keyframes gridMove {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(40px, 40px);
  }
}

/* =============================================================================
   TYPOGRAPHY
   ============================================================================= */

h1 {
  font-size: 2.5rem;
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  color: var(--white);
  margin-bottom: var(--space-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-shadow: 0 0 10px var(--accent-cyan);
}

h2 {
  font-size: 1rem;
  font-weight: var(--font-weight-medium);
  line-height: 1.4;
  color: var(--gray-light);
  margin-bottom: var(--space-lg);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

h3 {
  font-size: 2rem;
  font-weight: var(--font-weight-semibold);
  line-height: 1.3;
  background: linear-gradient(45deg, var(--accent-cyan), var(--accent-magenta));
  background-size: 400% 400%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 4s ease-in-out infinite;
  margin-bottom: var(--space-md);
}

@keyframes gradientShift {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

p {
  color: var(--gray-light);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

/* =============================================================================
   LAYOUT
   ============================================================================= */

.container {
  display: flex;
  width: 100vw;
  height: 100vh;
  position: relative;
  z-index: 1;
}

.col-half {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

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

#nav-column {
  background: rgba(26, 26, 26, 0.0);
  /* backdrop-filter: blur(10px); */
  border-right: 1px solid rgba(0, 255, 255, 0.2);
}

#title-card {
  padding: var(--space-3xl);
  background: rgba(0, 42, 42, 0.5);
  backdrop-filter: blur(10px);
  margin: var(--space-lg);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0, 255, 255, 0.3);
  box-shadow: var(--shadow-glow);
  text-align: center;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.resume-link, .email-link {
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  font-size: 0.875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid;
}

.resume-link {
  background: linear-gradient(45deg, var(--accent-cyan), var(--accent-magenta));
  color: var(--bg-dark);
  border-color: transparent;
  box-shadow: var(--shadow-cyan);
  font-weight: var(--font-weight-bold);
}

.resume-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 255, 255, 0.5);
  background: linear-gradient(45deg, var(--accent-magenta), var(--accent-cyan));
}

.email-link {
  background: transparent;
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
}

.email-link:hover {
  background: var(--accent-cyan);
  color: var(--bg-dark);
  box-shadow: var(--shadow-cyan);
  transform: translateY(-1px);
}

/* =============================================================================
   PROJECT ENTRIES
   ============================================================================= */

#entries {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 0 var(--space-lg) var(--space-lg);
}

.entry-grid {
  display: flex;
  height: 100%;
  gap: 2px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(0, 255, 255, 0.1);
}

.entry {
  flex: 1;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid rgba(0, 255, 255, 0.2);
}

.entry:hover {
  transform: scale(1.02);
  z-index: 10;
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-cyan);
}

.nav-icon {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: var(--pan-x, 50%) center;
  filter: grayscale(80%) brightness(0.6) contrast(1.2);
  transition: all var(--transition-normal);
}

.entry:hover .nav-icon {
  filter: grayscale(0%) brightness(1) contrast(1);
  transform: scale(1.05);
}

.entry::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--overlay-color, var(--accent-cyan));
  opacity: var(--overlay-opacity, 0.6);
  pointer-events: none;
  z-index: 1;
  transition: opacity var(--transition-normal);
  mix-blend-mode: multiply;
}

.entry:hover::after {
  opacity: 0.2;
}

/* =============================================================================
   DETAILS COLUMN
   ============================================================================= */

#details-column {
  background: rgba(0, 26, 26, 0.45);
  backdrop-filter: blur(10px);
  position: relative;
}

.content-container {
  position: relative;
  width: 100%;
  height: 100%;
}

.content-panel {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transform: translateY(30px);
  transition: all var(--transition-slow);
  padding: var(--space-3xl);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.content-panel.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.project-header {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(0, 255, 255, 0.2);
}

.project-meta {
  display: flex;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.project-type, .project-year {
  font-size: 0.75rem;
  font-weight: var(--font-weight-bold);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: 1px solid;
}

.project-type {
  background: var(--accent-cyan);
  color: var(--bg-dark);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
}

.project-year {
  background: transparent;
  color: var(--accent-magenta);
  border-color: var(--accent-magenta);
  box-shadow: 0 0 10px rgba(255, 0, 255, 0.2);
}

.download-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.download-link {
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  font-size: 0.875rem;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan);
  transition: all var(--transition-normal);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  overflow: hidden;
}

.download-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.2), transparent);
  transition: left var(--transition-normal);
}

.download-link:hover {
  background: var(--accent-cyan);
  color: var(--bg-dark);
  box-shadow: 0 0 15px rgba(0, 255, 255, 0.5);
  transform: translateY(-1px);
}

.download-link:hover::before {
  left: 100%;
}

.project-body {
  flex: 1;
}

.project-description {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--gray-light);
  margin-bottom: var(--space-xl);
  text-align: left;
}

.image-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.gallery-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  object-position: center;
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 255, 255, 0.2);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.gallery-image:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
  transform: scale(1.02);
}

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

@media (max-width: 768px) {
  .container {
    flex-direction: column;
    height: auto;
  }
  
  .col-half {
    min-height: auto;
  }
  
  .grid-container {
    background-size: 20px 20px;
  }
  
  .grid-container::before {
    background-size: 100px 100px;
  }
  
  #title-card {
    padding: var(--space-xl);
    margin: var(--space-md);
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h3 {
    font-size: 1.5rem;
  }
  
  .entry-grid {
    flex-direction: column;
    min-height: 400px;
  }
  
  .entry {
    min-height: 80px;
  }
  
  .content-panel {
    padding: var(--space-xl);
    position: relative;
    opacity: 1;
    visibility: visible;
    transform: none;
  }
  
  .content-panel:not(.active) {
    display: none;
  }
}

@media (max-width: 480px) {
  #title-card {
    padding: var(--space-lg);
    margin: var(--space-sm);
  }
  
  h1 {
    font-size: 1.5rem;
  }
  
  .contact-links {
    gap: var(--space-sm);
  }
  
  .project-meta {
    flex-direction: column;
    gap: var(--space-sm);
  }
}

/* =============================================================================
   ACCESSIBILITY & FOCUS STATES
   ============================================================================= */

.entry:focus-visible,
.resume-link:focus-visible,
.email-link:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}