/* Hero Content Container */
.hero-content {
  display: flex;
  flex-direction: row;
  gap: var(--spacing-md);
  width: 100%;
  max-width: 1200px;
  align-items: center;
  justify-content: center;
}

/* Hero Photo */
.hero-photo {
  width: 200px;
  height: 200px;
  border-radius: 50% !important;
  overflow: hidden;
  flex-shrink: 0;
  cursor: pointer;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}
.hero-photo:hover {
  transform: scale(1.05);
  box-shadow: 0 10px 30px rgba(255, 122, 0, 0.3);
}
.hero-photo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Hero CTA */
.hero-cta { margin-top: var(--spacing-lg); margin-bottom: var(--spacing-xl); display: flex; justify-content: center; }
.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 900px;
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--glass-bg);
  border: 2px solid var(--accent-orange);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--text-primary);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: all var(--transition-normal);
}
.cta-button:hover {
  border-color: var(--accent-orange);
  background: rgba(255, 122, 0, 0.05);
  box-shadow: 0 10px 24px rgba(255, 122, 0, 0.2);
  transform: translateY(-2px);
}
.cta-text { letter-spacing: 0.02em; font-weight: var(--font-weight-medium); }

/* About Modal Overlay */
.about-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 9999;
  display: none;
  opacity: 0;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
  transition: opacity var(--transition-normal);
}

.about-overlay.visible {
  display: flex;
  opacity: 1;
}

.about-modal {
  position: relative;
  max-width: 800px;
  max-height: 85vh;
  width: 100%;
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  overflow-y: auto;
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

.about-overlay.visible .about-modal {
  transform: scale(1);
}

.about-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  width: 40px;
  height: 40px;
  border: none;
  background: rgba(0, 0, 0, 0.1);
  border-radius: 50%;
  color: var(--text-primary);
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  z-index: 10;
}

.about-close:hover {
  background: rgba(0, 0, 0, 0.2);
  transform: rotate(90deg);
}

.about-modal-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.about-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: var(--spacing-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

.about-subtitle {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  margin-top: var(--spacing-sm);
  margin-bottom: var(--spacing-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

.about-text {
  line-height: 1.7;
  color: var(--text-secondary);
  font-size: 1rem;
}

.about-text strong {
  color: var(--text-primary);
  font-weight: var(--font-weight-semibold);
}

.about-text em {
  font-style: italic;
  color: var(--accent-blue);
}

.about-signature {
  margin-top: var(--spacing-md);
  font-style: italic;
  color: var(--text-light);
  text-align: right;
}

.thesis-info {
  padding: var(--spacing-md);
  background: rgba(0, 119, 255, 0.05);
  border-left: 3px solid var(--accent-blue);
  border-radius: var(--radius-sm);
}

.thesis-link {
  color: var(--accent-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
  border-bottom: 1px solid transparent;
}

.thesis-link:hover {
  color: var(--accent-orange);
  border-bottom-color: var(--accent-orange);
}

/* Defrosting animation - blue to orange to normal */
@keyframes defrost {
  0% {
    filter: saturate(0.3) brightness(0.9) sepia(0.8) hue-rotate(180deg);
    opacity: 0.8;
  }
  35% {
    filter: saturate(0.6) brightness(1) sepia(0.6) hue-rotate(180deg);
    opacity: 0.9;
  }
  65% {
    filter: saturate(1.2) brightness(1.05) sepia(0.4) hue-rotate(20deg);
    opacity: 0.95;
  }
  100% {
    filter: saturate(1) brightness(1) sepia(0) hue-rotate(0deg);
    opacity: 1;
  }
}

.about-modal-content {
  animation: defrostContent 1.2s ease-out forwards;
}

@keyframes defrostContent {
  0% {
    filter: saturate(0.3) brightness(0.8) sepia(1) hue-rotate(190deg);
  }
  40% {
    filter: saturate(0.6) brightness(0.95) sepia(0.7) hue-rotate(190deg);
  }
  70% {
    filter: saturate(1.3) brightness(1.1) sepia(0.5) hue-rotate(10deg);
  }
  100% {
    filter: saturate(1) brightness(1) sepia(0) hue-rotate(0deg);
  }
}


@media (max-width: 768px) {
  .about-modal {
    padding: var(--spacing-lg);
    max-height: 90vh;
  }

  .about-close {
    width: 36px;
    height: 36px;
    font-size: 1.75rem;
  }
}
/* CSS Custom Properties */
:root {
  /* Colors */
  --bg-primary: #fafbfc;
  --bg-secondary: #f5f6f7;
  --bg-gradient-start: #f8f9fa;
  --bg-gradient-end: #e9ecef;
  --glass-bg: rgba(255, 255, 255, 0.8);
  --glass-border: rgba(255, 255, 255, 0.9);
  --text-primary: #2d3748;
  --text-secondary: #4a5568;
  --text-light: #718096;
  --accent-blue: #0077FF;
  --accent-orange: #FF7A00;
  --shadow-light: rgba(0, 0, 0, 0.05);
  --shadow-medium: rgba(0, 0, 0, 0.1);
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 2rem;
  --radius-xl: 3rem;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Letter Background Colors */
  --letter-default: rgba(180, 180, 180, 0.25);
  --letter-hover: rgba(0, 119, 255, 0.3);
  --letter-accent: rgba(255, 122, 0, 0.2);
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-weight: var(--font-weight-normal);
  line-height: 1.6;
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
  min-height: 100vh;
  overflow-x: hidden;
  letter-spacing: 0.01em;
  position: relative;
}

/* Animated Letter Background */
.letter-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none; /* ignore events; we listen on window */
  z-index: 0;
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

.floating-letter {
  position: absolute;
  font-family: var(--font-family);
  font-weight: var(--font-weight-light);
  color: var(--letter-default);
  font-size: clamp(1rem, 2.8vw, 2rem);
  user-select: none;
  pointer-events: auto;
  cursor: pointer;
  transition: color 0.3s ease, transform 0.3s ease;
  z-index: 1;
  will-change: transform, color;
  backface-visibility: hidden;
}

.floating-letter:hover {
  color: var(--letter-hover);
  transform: scale(1.2);
}

.floating-letter.animate {
  animation: float 8s ease-in-out infinite;
}

.floating-letter.animate:nth-child(odd) {
  animation-delay: -2s;
  animation-duration: 10s;
}

.floating-letter.animate:nth-child(3n) {
  animation-delay: -4s;
  animation-duration: 12s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  25% {
    transform: translateY(-20px) rotate(1deg);
  }
  50% {
    transform: translateY(-10px) rotate(-1deg);
  }
  75% {
    transform: translateY(-30px) rotate(0.5deg);
  }
}

/* Glass Effect Utility */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px var(--shadow-light);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--spacing-md) 0;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  transform-origin: top;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar.minimized {
  top: 0;
  left: 50% !important;
  right: auto !important;
  transform: translateX(-50%) !important;
  width: 12.5%;
  min-width: 300px;
  height: 60px;
  border-bottom: 1px solid var(--glass-border);
  border-left: none;
  border-radius: var(--radius-lg);
  opacity: 1;
  pointer-events: auto;
  z-index: 10000;
  padding: 0 var(--spacing-md);
  margin: 0;
  display: flex;
  align-items: center;
}

.navbar.minimized .nav-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-md);
  padding: 0;
  max-width: none;
  width: 100%;
  height: 100%;
}

.navbar.minimized .logo-text::before {
  content: 'CC';
  font-weight: var(--font-weight-bold);
  font-size: 1.5rem;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar.minimized .logo-text {
  font-size: 0;
}

.navbar.minimized .nav-social {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo .logo-text {
  font-size: 1.125rem;
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  letter-spacing: 0.05em;
}

.nav-social {
  display: flex;
  gap: var(--spacing-md);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  text-decoration: none;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.social-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-orange));
  opacity: 0;
  transition: opacity var(--transition-normal);
  border-radius: 50%;
}

.social-link:hover::before {
  opacity: 0.1;
}

.social-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px var(--shadow-medium);
  border-color: var(--accent-blue);
}

.social-icon {
  width: 20px;
  height: 20px;
  position: relative;
  z-index: 1;
  transition: transform var(--transition-fast);
}

.social-link:hover .social-icon {
  transform: scale(1.1);
}

/* Main Content */
.main-content {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--spacing-xxl) + 80px) var(--spacing-lg) var(--spacing-xxl);
  position: relative;
  z-index: 1;
}

/* Hero Section */
.hero {
  text-align: center;
  max-width: 800px;
  width: 100%;
}

.hero-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
}

.hero-title {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: var(--font-weight-semibold);
  line-height: 1.1;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-sm);
}

.title-line {
  display: block;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 3vw, 1.5rem);
  font-weight: var(--font-weight-normal);
  color: var(--text-secondary);
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-md);
}

.hero-slogan {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  font-style: italic;
  color: var(--text-light);
  font-weight: var(--font-weight-light);
  letter-spacing: 0.02em;
  margin-bottom: var(--spacing-xl);
  max-width: 500px;
  line-height: 1.5;
}

/* Hero Buttons */
.hero-buttons {
  display: flex;
  flex-direction: row;
  gap: var(--spacing-md);
  width: 100%;
  max-width: 1000px;
  justify-content: center;
  align-items: center;
  perspective: 1000px;
}

.glass-button {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.02em;
  transition: all var(--transition-normal);
  overflow: hidden;
  cursor: pointer;
  flex: 1;
  min-width: 200px;
  height: 200px;
  transform-style: preserve-3d;
  will-change: transform;
}

/* Panel content */
.panel .panel-content {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  align-items: center;
}
.panel .panel-title {
  font-weight: var(--font-weight-semibold);
  font-size: 1.1rem;
}
.panel .panel-subtitle {
  font-weight: var(--font-weight-light);
  font-size: 0.9rem;
  color: var(--text-light);
}

.glass-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-orange));
  opacity: 0;
  transition: opacity var(--transition-normal);
  border-radius: var(--radius-lg);
}

.glass-button:hover::before {
  opacity: 0.1;
}

.glass-button:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 20px 40px var(--shadow-medium);
  border-color: var(--accent-blue);
}

.button-text {
  position: relative;
  z-index: 1;
  transition: color var(--transition-fast);
}

.glass-button:hover .button-text {
  color: var(--accent-blue);
}

.button-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: radial-gradient(circle, var(--accent-blue) 0%, transparent 70%);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: all var(--transition-slow);
  opacity: 0;
}

.glass-button:hover .button-glow {
  width: 200px;
  height: 200px;
  opacity: 0.1;
}

/* Button Variants */
.glass-button.primary:hover .button-text {
  color: var(--accent-blue);
}

.glass-button.secondary:hover .button-text {
  color: var(--accent-orange);
}

.glass-button.tertiary:hover .button-text {
  color: var(--accent-blue);
}

/* Footer */
.footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-lg) 0;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--glass-border);
  z-index: 1000;
  transform-origin: bottom;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.footer.minimized {
  bottom: 0;
  left: 50% !important;
  right: auto !important;
  transform: translateX(-50%) !important;
  width: 12.5%;
  min-width: 300px;
  height: 60px;
  border-top: 1px solid var(--glass-border);
  border-left: none;
  border-radius: var(--radius-lg);
  opacity: 1;
  pointer-events: auto;
  z-index: 10000;
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
}

.footer-text {
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-light);
  font-weight: var(--font-weight-light);
  letter-spacing: 0.02em;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-container {
    padding: 0 var(--spacing-md);
  }
  
  .nav-social {
    gap: var(--spacing-sm);
  }
  
  .social-link {
    width: 36px;
    height: 36px;
  }
  
  .social-icon {
    width: 18px;
    height: 18px;
  }
  
  .main-content {
    padding: calc(var(--spacing-xl) + 80px) var(--spacing-md) var(--spacing-xl);
  }
  
  .hero-container {
    gap: var(--spacing-md);
  }
  
  .hero-content {
    flex-direction: column;
  }

  .hero-buttons {
    flex-direction: column;
    max-width: 100%;
    width: 100%;
  }

  .hero-photo {
    width: 150px;
    height: 150px;
    border-radius: 50% !important;
  }

  .glass-button {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 0.9rem;
    height: 150px;
    width: 100%;
  }
}

@media (max-width: 480px) {
  .nav-container {
    padding: 0 var(--spacing-sm);
  }

  .hero-buttons {
    gap: var(--spacing-sm);
  }

  .glass-button {
    padding: var(--spacing-md);
    height: 120px;
    font-size: 0.9rem;
  }

  .hero-photo {
    min-width: 150px;
    min-height: 150px;
    max-width: 150px;
    max-height: 150px;
    border-radius: 50% !important;
  }
}

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

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --glass-bg: rgba(255, 255, 255, 0.95);
    --glass-border: rgba(0, 0, 0, 0.2);
    --text-primary: #000000;
    --text-secondary: #333333;
  }
}

/* Print styles */
@media print {
  .navbar,
  .footer {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .hero-title {
    color: black;
  }
}