/* Premium Register Page CSS - Production Ready */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Orbitron:wght@400;500;600;700;800;900&display=swap');

:root {
  /* Refined Color Palette - Slight Variation from Main */
  --primary-register: #FF6B35;
  --primary-dark: #E55A2B;
  --secondary-register: #00B4D8;
  --accent-purple: #8B5CF6;
  --accent-gold: #F59E0B;
  --success-emerald: #059669;
  --error-crimson: #DC2626;
  
  /* Enhanced Dark Theme */
  --bg-primary: #0B0C14;
  --bg-secondary: #1C1D28;
  --bg-tertiary: #2D2E3F;
  --surface-glass: rgba(255, 255, 255, 0.08);
  --surface-elevated: rgba(255, 255, 255, 0.12);
  --surface-ultra: rgba(255, 255, 255, 0.16);
  
  /* Typography Colors */
  --text-primary: #FFFFFF;
  --text-secondary: rgba(255, 255, 255, 0.85);
  --text-tertiary: rgba(255, 255, 255, 0.65);
  --text-muted: rgba(255, 255, 255, 0.45);
  
  /* Advanced Shadows */
  --shadow-glow: 0 0 30px rgba(255, 107, 53, 0.15);
  --shadow-intense: 0 25px 50px rgba(0, 0, 0, 0.25);
  --shadow-register: 0 20px 40px rgba(255, 107, 53, 0.2);
  
  /* Animations */
  --transition-smooth: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 400ms cubic-bezier(0.175, 0.885, 0.32, 1.1);
  --transition-elastic: 600ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Global Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
}

/* Advanced Animated Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: 
    radial-gradient(circle at 25% 25%, var(--primary-register) 0%, transparent 50%),
    radial-gradient(circle at 75% 75%, var(--secondary-register) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, var(--accent-purple) 0%, transparent 70%),
    radial-gradient(circle at 10% 80%, var(--accent-gold) 0%, transparent 40%);
  opacity: 0.06;
  z-index: -2;
  animation: cosmicDrift 12s ease-in-out infinite;
}

@keyframes cosmicDrift {
  0%, 100% { 
    opacity: 0.06; 
    transform: scale(1) rotate(0deg);
  }
  25% { 
    opacity: 0.12; 
    transform: scale(1.05) rotate(1deg);
  }
  50% { 
    opacity: 0.08; 
    transform: scale(0.98) rotate(-0.5deg);
  }
  75% { 
    opacity: 0.15; 
    transform: scale(1.02) rotate(0.8deg);
  }
}

/* Floating Particles Effect */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(2px 2px at 20px 30px, var(--primary-register), transparent),
    radial-gradient(2px 2px at 40px 70px, var(--secondary-register), transparent),
    radial-gradient(1px 1px at 90px 40px, var(--accent-purple), transparent),
    radial-gradient(1px 1px at 130px 80px, var(--accent-gold), transparent);
  background-repeat: repeat;
  background-size: 150px 100px;
  opacity: 0.3;
  z-index: -1;
  animation: particleFloat 20s linear infinite;
}

@keyframes particleFloat {
  0% { transform: translateY(0px) translateX(0px); }
  100% { transform: translateY(-100px) translateX(50px); }
}

/* Premium Register Container */
.register-container {
  background: var(--surface-ultra);
  backdrop-filter: blur(30px) saturate(180%);
  border: 1px solid rgba(255, 107, 53, 0.25);
  border-radius: 24px;
  padding: 3.5rem;
  width: 100%;
  max-width: 480px;
  min-height: 600px;
  box-shadow: 
    var(--shadow-register),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
  animation: containerEntrance 1s var(--transition-bounce);
  transform-origin: center;
}

@keyframes containerEntrance {
  0% {
    opacity: 0;
    transform: translateY(30px) scale(0.95) rotateX(10deg);
    filter: blur(10px);
  }
  50% {
    opacity: 0.8;
    transform: translateY(-5px) scale(1.02) rotateX(-2deg);
    filter: blur(2px);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1) rotateX(0deg);
    filter: blur(0px);
  }
}

/* Gradient Border Animation */
.register-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 24px;
  padding: 1px;
  background: linear-gradient(135deg, 
    var(--primary-register) 0%,
    var(--secondary-register) 25%,
    var(--accent-purple) 50%,
    var(--accent-gold) 75%,
    var(--primary-register) 100%);
  background-size: 400% 400%;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: xor;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  animation: borderGlow 4s ease-in-out infinite;
  z-index: -1;
}

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

/* Floating Glow Effect */
.register-container::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--primary-register) 0%, transparent 70%);
  opacity: 0.1;
  transform: translate(-50%, -50%);
  z-index: -1;
  animation: innerGlow 6s ease-in-out infinite alternate;
}

@keyframes innerGlow {
  0% { 
    opacity: 0.1; 
    transform: translate(-50%, -50%) scale(0.8);
  }
  100% { 
    opacity: 0.2; 
    transform: translate(-50%, -50%) scale(1.2);
  }
}

/* Enhanced Header */
.register-header {
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.register-header h1 {
  font-family: 'Orbitron', monospace;
  font-size: 2.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, 
    var(--primary-register) 0%,
    var(--secondary-register) 50%,
    var(--accent-purple) 100%);
  background-size: 300% 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.8rem;
  position: relative;
  animation: titleShimmer 3s ease-in-out infinite, titleFloat 4s ease-in-out infinite;
  letter-spacing: -0.02em;
}

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

@keyframes titleFloat {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-3px); }
}

.register-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  font-weight: 400;
  opacity: 0;
  animation: subtitleFade 1s ease-out 0.5s forwards;
  line-height: 1.6;
}

@keyframes subtitleFade {
  0% { 
    opacity: 0; 
    transform: translateY(10px); 
  }
  100% { 
    opacity: 0.85; 
    transform: translateY(0); 
  }
}

/* Premium Form Groups */
.form-group {
  margin-bottom: 2rem;
  position: relative;
  animation: formSlide 0.6s ease-out forwards;
  opacity: 0;
}

.form-group:nth-child(1) { animation-delay: 0.7s; }
.form-group:nth-child(2) { animation-delay: 0.9s; }
.form-group:nth-child(3) { animation-delay: 1.1s; }

@keyframes formSlide {
  0% {
    opacity: 0;
    transform: translateX(-20px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

.form-group label {
  display: block;
  margin-bottom: 0.8rem;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.3px;
  transition: color var(--transition-smooth);
}

/* Enhanced Input Fields */
.form-group input {
  width: 100%;
  padding: 1.2rem 1.5rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1.5px solid rgba(255, 107, 53, 0.2);
  border-radius: 16px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 400;
  transition: all var(--transition-bounce);
  position: relative;
  backdrop-filter: blur(10px);
}

.form-group input::placeholder {
  color: var(--text-muted);
  font-weight: 400;
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary-register);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 
    0 0 0 3px rgba(255, 107, 53, 0.15),
    0 8px 25px rgba(255, 107, 53, 0.2);
  transform: translateY(-2px);
}

.form-group input:focus + label {
  color: var(--primary-register);
}

/* Input Animation States */
.form-group input:valid {
  border-color: var(--success-emerald);
  box-shadow: 0 0 0 1px rgba(5, 150, 105, 0.2);
}

.form-group input:invalid:not(:placeholder-shown) {
  border-color: var(--error-crimson);
  box-shadow: 0 0 0 1px rgba(220, 38, 38, 0.2);
}

/* Floating Label Animation */
.form-group {
  position: relative;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label {
  transform: translateY(-8px) scale(0.85);
  color: var(--primary-register);
}

/* Premium Register Button */
.register-btn {
  width: 100%;
  background: linear-gradient(135deg, 
    var(--primary-register) 0%,
    var(--accent-purple) 50%,
    var(--secondary-register) 100%);
  background-size: 300% 300%;
  color: white;
  padding: 1.3rem 2rem;
  border: none;
  border-radius: 20px;
  font-size: 1.15rem;
  font-weight: 700;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  margin-top: 1.5rem;
  box-shadow: 
    0 10px 30px rgba(255, 107, 53, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  transition: all var(--transition-bounce);
  animation: buttonEntrance 0.8s ease-out 1.3s both;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

@keyframes buttonEntrance {
  0% {
    opacity: 0;
    transform: translateY(20px) scale(0.9);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Button Shimmer Effect */
.register-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, 
    transparent, 
    rgba(255, 255, 255, 0.4), 
    transparent);
  transition: left 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.register-btn:hover::before {
  left: 100%;
}

.register-btn:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 
    0 15px 40px rgba(255, 107, 53, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  background-position: 100% 50%;
  animation: buttonPulse 0.6s ease-in-out;
}

@keyframes buttonPulse {
  0%, 100% { transform: translateY(-3px) scale(1.02); }
  50% { transform: translateY(-3px) scale(1.05); }
}

.register-btn:active {
  transform: translateY(-1px) scale(0.98);
  transition: transform 0.1s ease;
}

/* Loading State */
.register-btn.loading {
  pointer-events: none;
  opacity: 0.8;
}

.register-btn.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid transparent;
  border-top: 2px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Enhanced Footer */
.register-footer {
  text-align: center;
  margin-top: 2.5rem;
  opacity: 0;
  animation: footerFade 0.8s ease-out 1.5s forwards;
}

@keyframes footerFade {
  0% { 
    opacity: 0; 
    transform: translateY(10px); 
  }
  100% { 
    opacity: 1; 
    transform: translateY(0); 
  }
}

.register-footer p {
  color: var(--text-tertiary);
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.register-footer a {
  color: var(--primary-register);
  text-decoration: none;
  font-weight: 600;
  position: relative;
  transition: all var(--transition-smooth);
  padding: 0.5rem 1rem;
  border-radius: 8px;
}

.register-footer a::before {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-register), var(--secondary-register));
  transition: width 0.4s ease, left 0.4s ease;
}

.register-footer a:hover {
  color: var(--text-primary);
  background: rgba(255, 107, 53, 0.1);
  transform: translateY(-1px);
}

.register-footer a:hover::before {
  width: 100%;
  left: 0;
}

/* Premium Notification System */
.notification {
  position: fixed;
  top: 30px;
  right: 30px;
  background: var(--surface-ultra);
  backdrop-filter: blur(20px);
  color: white;
  padding: 1.2rem 2rem;
  border-radius: 16px;
  z-index: 1001;
  box-shadow: 
    0 20px 40px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.1);
  animation: notificationSlide 0.6s var(--transition-bounce);
  min-width: 300px;
  max-width: 400px;
}

.notification.success {
  border-color: var(--success-emerald);
  box-shadow: 
    0 20px 40px rgba(5, 150, 105, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.notification.error {
  border-color: var(--error-crimson);
  box-shadow: 
    0 20px 40px rgba(220, 38, 38, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

@keyframes notificationSlide {
  0% {
    transform: translateX(100%) scale(0.8);
    opacity: 0;
  }
  50% {
    transform: translateX(-10px) scale(1.05);
    opacity: 0.9;
  }
  100% {
    transform: translateX(0) scale(1);
    opacity: 1;
  }
}

/* Form Validation Feedback */
.form-group .validation-icon {
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.2rem;
  opacity: 0;
  transition: all var(--transition-smooth);
}

.form-group input:valid + .validation-icon.success {
  opacity: 1;
  color: var(--success-emerald);
  animation: iconBounce 0.5s ease-out;
}

.form-group input:invalid:not(:placeholder-shown) + .validation-icon.error {
  opacity: 1;
  color: var(--error-crimson);
  animation: iconShake 0.5s ease-out;
}

@keyframes iconBounce {
  0% { transform: translateY(-50%) scale(0); }
  50% { transform: translateY(-50%) scale(1.3); }
  100% { transform: translateY(-50%) scale(1); }
}

@keyframes iconShake {
  0%, 100% { transform: translateY(-50%) translateX(0); }
  25% { transform: translateY(-50%) translateX(-3px); }
  75% { transform: translateY(-50%) translateX(3px); }
}

/* Responsive Design */
@media (max-width: 768px) {
  .register-container {
    margin: 1rem;
    padding: 2.5rem 2rem;
    border-radius: 20px;
    max-width: calc(100vw - 2rem);
  }
  
  .register-header h1 {
    font-size: 2.2rem;
  }
  
  .form-group input {
    padding: 1rem 1.2rem;
  }
  
  .register-btn {
    padding: 1.1rem 1.5rem;
    font-size: 1rem;
  }
  
  .notification {
    top: 20px;
    right: 20px;
    left: 20px;
    max-width: calc(100vw - 40px);
  }
}

@media (max-width: 480px) {
  .register-container {
    padding: 2rem 1.5rem;
  }
  
  .register-header h1 {
    font-size: 1.9rem;
  }
  
  body::after {
    opacity: 0.15;
  }
}

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

/* High Contrast Mode */
@media (prefers-contrast: high) {
  .register-container {
    border: 2px solid var(--primary-register);
    background: var(--bg-primary);
  }
  
  .form-group input {
    border: 2px solid var(--text-secondary);
  }
  
  .form-group input:focus {
    border: 2px solid var(--primary-register);
  }
}

/* Focus Indicators */
.register-btn:focus-visible {
  outline: 3px solid var(--primary-register);
  outline-offset: 3px;
}

.form-group input:focus-visible {
  outline: 2px solid var(--primary-register);
  outline-offset: 2px;
}

/* Loading Overlay */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(11, 12, 20, 0.8);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-smooth);
}

.loading-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.loading-spinner {
  width: 60px;
  height: 60px;
  border: 3px solid rgba(255, 107, 53, 0.3);
  border-top: 3px solid var(--primary-register);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}