/* Design System Variables */
:root {
  /* Colors - Cyberpunk Palette */
  --color-space-black: #0a0a0b;
  --color-deep-black: #111114;
  --color-electric-blue: #00d4ff;
  --color-cyan: #00ffff;
  --color-white: #ffffff;
  --color-off-white: #f8f9fa;
  --color-gray-100: #1a1a1d;
  --color-gray-200: #2a2a2f;
  --color-gray-300: #3a3a42;
  --color-gray-400: #5a5a64;
  --color-gray-500: #7a7a84;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-electric-blue), var(--color-cyan));
  --gradient-dark: linear-gradient(135deg, var(--color-space-black), var(--color-deep-black));
  --gradient-glow: radial-gradient(circle at center, rgba(0, 212, 255, 0.2), transparent 70%);

  /* Typography */
  --font-family: 'Inter', -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;

  /* Font Sizes */
  --text-xs: 0.75rem;    /* 12px */
  --text-sm: 0.875rem;   /* 14px */
  --text-base: 1rem;     /* 16px */
  --text-lg: 1.125rem;   /* 18px */
  --text-xl: 1.25rem;    /* 20px */
  --text-2xl: 1.5rem;    /* 24px */
  --text-3xl: 1.875rem;  /* 30px */
  --text-4xl: 2.25rem;   /* 36px */
  --text-5xl: 3rem;      /* 48px */
  --text-6xl: 3.75rem;   /* 60px */
  --text-7xl: 4.5rem;    /* 72px */

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Borders */
  --border-radius-sm: 4px;
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;

  /* Shadows */
  --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.3);
  --shadow-glow-strong: 0 0 40px rgba(0, 212, 255, 0.5);
  --shadow-dark: 0 10px 25px rgba(0, 0, 0, 0.5);

  /* Transitions */
  --transition-fast: 0.15s ease-out;
  --transition-normal: 0.3s ease-out;
  --transition-slow: 0.5s ease-out;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  background: var(--color-space-black);
  color: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
  font-size: var(--text-base);
  font-weight: var(--font-weight-normal);
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section {
  padding: var(--space-20) 0;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(10, 10, 11, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-gray-200);
  z-index: 1000;
  transition: var(--transition-normal);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  max-width: 1400px;
  margin: 0 auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--font-weight-bold);
  font-size: var(--text-xl);
}

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

.logo-accent {
  color: var(--color-electric-blue);
  font-weight: var(--font-weight-light);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-8);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: var(--space-2);
  gap: 4px;
  z-index: 1001;
}

.mobile-menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-white);
  transition: var(--transition-fast);
  border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 10, 11, 0.95);
  backdrop-filter: blur(20px);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-menu {
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-space-black);
  z-index: 1000;
  transform: translateX(-100%);
  transition: transform var(--transition-normal);
  padding: var(--space-8) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.mobile-nav-menu.active {
  transform: translateX(0);
}

.mobile-nav-menu .nav-link {
  font-size: var(--text-lg);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-gray-200);
}

.page-transition {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-dark);
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.5s ease-in-out;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-transition.active {
  opacity: 1;
  visibility: visible;
}

.transition-logo {
  font-size: var(--text-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-electric-blue);
  animation: pulse 1s infinite;
}

.nav-link {
  color: var(--color-gray-400);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  transition: var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-electric-blue);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  border: none;
  border-radius: var(--border-radius);
  font-family: var(--font-family);
  font-weight: var(--font-weight-medium);
  font-size: var(--text-sm);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-space-black);
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-strong);
}

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

.btn-secondary:hover {
  background: var(--color-electric-blue);
  color: var(--color-space-black);
  transform: translateY(-2px);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-highlight {
  color: var(--color-cyan);
  font-weight: var(--font-weight-semibold);
}

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Animations */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
  }
  50% {
    box-shadow: 0 0 40px rgba(0, 212, 255, 0.8);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% center;
  }
  100% {
    background-position: 200% center;
  }
}

/* Advanced micro-interactions */
.btn {
  overflow: hidden;
  position: relative;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:active::before {
  width: 300px;
  height: 300px;
}

/* Enhanced hover states */
.nav-link {
  position: relative;
  overflow: hidden;
}

.nav-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.4), transparent);
  transition: left 0.5s;
}

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

/* Parallax scroll effects */
.parallax-element {
  transition: transform 0.1s ease-out;
}

/* Staggered animations */
.stagger-animation > * {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s ease-out forwards;
}

.stagger-animation > *:nth-child(1) { animation-delay: 0.1s; }
.stagger-animation > *:nth-child(2) { animation-delay: 0.2s; }
.stagger-animation > *:nth-child(3) { animation-delay: 0.3s; }
.stagger-animation > *:nth-child(4) { animation-delay: 0.4s; }
.stagger-animation > *:nth-child(5) { animation-delay: 0.5s; }
.stagger-animation > *:nth-child(6) { animation-delay: 0.6s; }

/* Loading states */
.loading-shimmer {
  background: linear-gradient(90deg, var(--color-gray-300) 0%, var(--color-gray-200) 50%, var(--color-gray-300) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

/* Focus states for accessibility */
.btn:focus,
.nav-link:focus {
  outline: 2px solid var(--color-electric-blue);
  outline-offset: 2px;
}

/* Email Modal */
.email-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.email-modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 10, 11, 0.9);
  backdrop-filter: blur(10px);
}

.modal-content {
  position: relative;
  background: var(--color-deep-black);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius-lg);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-dark);
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

.email-modal.active .modal-content {
  transform: scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-gray-200);
}

.modal-header h3 {
  font-size: var(--text-xl);
  color: var(--color-white);
}

.modal-close {
  background: none;
  border: none;
  color: var(--color-gray-400);
  font-size: var(--text-2xl);
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--border-radius);
  transition: var(--transition-fast);
}

.modal-close:hover {
  background: var(--color-gray-200);
  color: var(--color-white);
}

.modal-body {
  padding: var(--space-6);
}

.modal-body p {
  color: var(--color-gray-400);
  margin-bottom: var(--space-6);
  line-height: 1.6;
}

.form-group {
  margin-bottom: var(--space-5);
}

.form-group label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-white);
  margin-bottom: var(--space-2);
}

.form-group input,
.form-group select {
  width: 100%;
  padding: var(--space-3);
  background: var(--color-gray-100);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius);
  color: var(--color-white);
  font-size: var(--text-base);
  font-family: var(--font-family);
  transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-electric-blue);
  box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.2);
}

.form-group input::placeholder {
  color: var(--color-gray-500);
}

.full-width {
  width: 100%;
  justify-content: center;
}

.success-message,
.error-message {
  text-align: center;
  padding: var(--space-4);
}

.success-icon,
.error-icon {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-4);
  display: block;
}

.success-icon {
  color: var(--color-cyan);
}

.error-icon {
  color: #ff6b6b;
}

.success-message h4,
.error-message h4 {
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.success-message p,
.error-message p {
  color: var(--color-gray-400);
  margin-bottom: var(--space-4);
}

.success-message strong {
  color: var(--color-electric-blue);
}

/* Smooth page reveal */
body {
  opacity: 0;
  animation: fadeIn 0.5s ease-out 0.1s forwards;
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

.animate-pulse {
  animation: pulse 2s infinite;
}

.animate-glow {
  animation: glow 3s infinite;
}

.animate-fade-in-up {
  animation: fadeInUp 0.8s ease-out;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .nav-menu {
    gap: var(--space-6);
  }

  .nav-link {
    font-size: var(--text-xs);
  }
}

@media (max-width: 768px) {
  :root {
    --text-5xl: 2.5rem;
    --text-4xl: 2rem;
    --text-3xl: 1.5rem;
  }

  .nav-menu {
    display: none;
  }

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

  .container {
    padding: 0 var(--space-4);
  }

  .section {
    padding: var(--space-12) 0;
  }

  .nav-container {
    padding: var(--space-3) var(--space-4);
  }

  .nav-logo {
    font-size: var(--text-lg);
  }
}