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

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

*::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

*::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
}

*::-webkit-scrollbar-thumb {
  background: rgba(79, 70, 229, 0.4);
  border-radius: 10px;
  transition: background 0.3s ease;
}

*::-webkit-scrollbar-thumb:hover {
  background: rgba(79, 70, 229, 0.7);
}

/* ================================
   CSS CUSTOM PROPERTIES
   ================================ */

:root {
  --primary-color: #4f46e5;
  --primary-dark: #4338ca;
  --primary-light: #6366f1;
  --primary-lighter: #818cf8;
  --primary-ultra-light: #a5b4fc;
  --success-color: #10b981;
  --error-color: #ef4444;
  --warning-color: #f59e0b;
  --background-white: #ffffff;
  --background-light: #f9fafb;
  --background-lighter: #f3f4f6;
  --text-dark: #1f2937;
  --text-medium: #4b5563;
  --text-light: #6b7280;
  --text-lighter: #9ca3af;
  --border-color: #e5e7eb;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.12);
  --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.2);
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 20px;
  --border-radius-2xl: 24px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 2.5rem;
  --spacing-3xl: 3rem;
  --font-xs: 0.75rem;
  --font-sm: 0.875rem;
  --font-base: 1rem;
  --font-lg: 1.125rem;
  --font-xl: 1.25rem;
  --font-2xl: 1.5rem;
  --font-3xl: 1.875rem;
}

/* ================================
   GLOBAL STYLES
   ================================ */

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

body {
  font-family: 'Times New Roman', Times, serif !important;
  min-height: 100vh;
  background: var(--background-white);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1.5rem;
  overflow-x: hidden;
  color: var(--text-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
}

body.loading {
  overflow: hidden;
}

body.loading::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  z-index: 9998;
  animation: fadeIn var(--transition-fast);
}

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

.background-animation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
}

.floating-shapes {
  position: absolute;
  width: 100%;
  height: 100%;
}

.shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.4;
  filter: blur(40px);
}

.shape-1 {
  width: 400px;
  height: 400px;
  top: -200px;
  left: -200px;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.08), transparent);
  animation: float 25s infinite ease-in-out;
}

.shape-2 {
  width: 350px;
  height: 350px;
  bottom: -175px;
  right: -100px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.06), transparent);
  animation: float 28s infinite ease-in-out 2s;
}

.shape-3 {
  width: 300px;
  height: 300px;
  top: 50%;
  right: 5%;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.05), transparent);
  animation: float 30s infinite ease-in-out 4s;
}

@keyframes float {
  0%, 100% {
    transform: translate(0, 0) rotate(0deg);
  }
  33% {
    transform: translate(40px, -40px) rotate(120deg);
  }
  66% {
    transform: translate(-30px, 30px) rotate(240deg);
  }
}

/* ================================
   SIGNUP CONTAINER
   ================================ */

.signup-container {
  width: 100%;
  max-width: 520px;
  position: relative;
  z-index: 1;
  animation: slideInUp 0.6s ease;
}

.signup-card {
  background: var(--background-white);
  border-radius: var(--border-radius-2xl);
  box-shadow:
    0 0 0 1px rgba(79, 70, 229, 0.05),
    0 20px 60px rgba(0, 0, 0, 0.12),
    0 35px 90px rgba(79, 70, 229, 0.1);
  padding: 30px;
  transition: all var(--transition-base);
  position: relative;
  overflow: visible; /* FIXED: Changed from overflow: hidden */
}

.signup-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(79, 70, 229, 0.3), transparent);
}

.signup-card:hover {
  transform: translateY(-4px);
  box-shadow:
    0 0 0 1px rgba(79, 70, 229, 0.08),
    0 25px 70px rgba(0, 0, 0, 0.18),
    0 40px 100px rgba(79, 70, 229, 0.15);
}

/* ================================
   CARD HEADER
   ================================ */

.card-header {
  text-align: center;
  margin-bottom: 20px;
  animation: fadeInDown 0.6s ease;
}


.header-icon i {
  width: 36px;
  height: 36px;
  color: white;
  stroke-width: 2;
}

.header-title {
  color: #4f46e5;
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 0.375rem;
  letter-spacing: -0.5px;
}

.header-subtitle {
  color: var(--text-medium);
  font-size: var(--font-base);
  line-height: 1.6;
  margin: 0;
}

/* ================================
   FORM SECTION
   ================================ */

.form-section {
  animation: fadeInUp 0.6s ease 0.1s both;
}

.name-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.input-field {
  margin-bottom: var(--spacing-lg);
  position: relative;
  overflow: visible; /* FIXED: Added to allow popup to show */
}

.input-field label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-dark);
  font-weight: 600;
  font-size: var(--font-sm);
  text-transform: capitalize;
  letter-spacing: 0.3px;
}

/* ================================
   INPUT STYLES
   ================================ */

.input-wrapper {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  transition: all var(--transition-base);
}

.input-wrapper.focused {
  transform: translateY(-1px);
}

.input-icon {
  position: absolute;
  left: var(--spacing-md);
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  transition: all var(--transition-base);
  pointer-events: none;
}

.input-wrapper.focused .input-icon {
  color: var(--primary-color);
}

.input-icon i {
  width: 18px;
  height: 18px;
  stroke-width: 2.5;
}

.input-wrapper input {
  width: 100%;
  padding: 0.875rem 1rem 0.875rem 2.875rem;
  background: var(--background-white);
  border: 1.5px solid var(--border-color);
  border-radius: var(--border-radius-md);
  color: var(--text-dark);
  font-size: var(--font-base);
  font-family: 'Times New Roman', Times, serif !important;
  font-weight: 500;
  transition: all var(--transition-base);
  outline: none;
}

.input-wrapper input::placeholder {
  color: var(--text-lighter);
  font-weight: 400;
}

.input-wrapper input:hover {
  border-color: var(--primary-light);
}

.input-wrapper input:focus {
  border-color: var(--primary-color);
  background: linear-gradient(to bottom, var(--background-white), rgba(79, 70, 229, 0.01));
  box-shadow:
    0 0 0 4px rgba(79, 70, 229, 0.08),
    0 2px 8px rgba(79, 70, 229, 0.1);
}

/* ================================
   PASSWORD TOGGLE BUTTON
   ================================ */

.password-toggle {
  position: absolute;
  right: var(--spacing-md);
  background: none;
  border: none;
  cursor: pointer;
  z-index: 3;
  padding: var(--spacing-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  transition: all var(--transition-base);
}

.password-toggle:hover {
  color: var(--primary-color);
  transform: scale(1.1);
}

.password-toggle .eye-icon {
  width: 18px;
  height: 18px;
  stroke-width: 2.5;
}

/* ================================
   PASSWORD REQUIREMENTS - FIXED
   ================================ */

.password-requirements {
  position: absolute;
  left: calc(100% + 16px);
  top: 0;
  background: white;
  padding: 16px;
  border-radius: 12px;
  box-shadow: 
    0 0 0 1px rgba(79, 70, 229, 0.1),
    0 8px 24px rgba(0, 0, 0, 0.12),
    0 12px 32px rgba(79, 70, 229, 0.08);
  width: 220px;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-10px);
  transition: all 0.3s ease;
  z-index: 1000;
  pointer-events: none;
}

.password-requirements.show {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

/* Arrow indicator pointing to the input */
.password-requirements::before {
  content: '';
  position: absolute;
  left: -6px;
  top: 20px;
  width: 12px;
  height: 12px;
  background: white;
  transform: rotate(45deg);
  box-shadow: -2px 2px 4px rgba(0, 0, 0, 0.05);
  border-left: 1px solid rgba(79, 70, 229, 0.1);
  border-bottom: 1px solid rgba(79, 70, 229, 0.1);
}

/* Requirement item styles */
.requirement-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 0;
  font-size: 0.875rem;
  color: #6b7280;
  transition: all 0.2s ease;
}

.requirement-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #d1d5db;
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.requirement-item.valid {
  color: #10b981;
}

.requirement-item.valid .requirement-dot {
  background: #10b981;
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.4);
  transform: scale(1.1);
}

/* ================================
   MATCH MESSAGE
   ================================ */

.match-message {
  display: block;
  margin-top: 0.5rem;
  font-size: var(--font-sm);
  font-weight: 500;
  transition: all var(--transition-base);
  height: 0;
  opacity: 0;
  overflow: hidden;
}

.match-message:not(:empty) {
  height: auto;
  opacity: 1;
}

.match-message.valid {
  color: var(--success-color);
}

.match-message.invalid {
  color: var(--error-color);
}

/* ================================
   SUBMIT BUTTON
   ================================ */

.signup-btn {
  width: 100%;
  margin-top: var(--spacing-lg);
  padding: 1rem var(--spacing-lg);
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
  color: white;
  border: none;
  border-radius: var(--border-radius-md);
  font-size: var(--font-base);
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-base);
  font-family: 'Times New Roman', Times, serif !important;
  position: relative;
  overflow: hidden;
  box-shadow:
    0 4px 14px rgba(79, 70, 229, 0.3),
    0 1px 3px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
}

.signup-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.signup-btn:hover::before {
  opacity: 1;
}

.btn-content {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  position: relative;
  z-index: 2;
}

.btn-content i {
  width: 20px;
  height: 20px;
  stroke-width: 2.5;
}

.btn-ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  transform: scale(0);
  pointer-events: none;
  z-index: 1;
}

.btn-ripple.ripple-active {
  animation: ripple-animation 0.6s ease-out;
}

@keyframes ripple-animation {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

.signup-btn:hover {
  transform: translateY(-2px);
  box-shadow:
    0 8px 24px rgba(79, 70, 229, 0.4),
    0 2px 6px rgba(0, 0, 0, 0.15);
}

.signup-btn:active {
  transform: translateY(0);
  box-shadow:
    0 2px 8px rgba(79, 70, 229, 0.3),
    0 1px 3px rgba(0, 0, 0, 0.1);
}

.signup-btn.loading {
  pointer-events: none;
  opacity: 0.85;
}

.signup-btn.loading .btn-content {
  opacity: 0;
}

.signup-btn.loading::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border: 3px solid white;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  z-index: 3;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ================================
   LOGIN PROMPT
   ================================ */

.login-prompt {
  text-align: center;
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--border-color);
  animation: fadeInUp 0.6s ease 0.2s both;
}

.login-prompt p {
  color: var(--text-medium);
  font-size: var(--font-sm);
  margin: 0;
}

.login-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 700;
  transition: all var(--transition-fast);
  position: relative;
  display: inline-block;
}

.login-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-base);
}

.login-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.login-link:hover {
  color: var(--primary-dark);
}

/* ================================
   ANIMATIONS
   ================================ */

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@media (max-width: 768px) {
  .signup-container {
    max-width: 100%;
  }

  .signup-card {
    padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-lg);
  }

  .name-row {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .header-title {
    font-size: var(--font-xl);
  }

  .header-subtitle {
    font-size: var(--font-sm);
  }

  /* Move password requirements below input on tablets/mobile */
  .password-requirements {
    position: relative;
    left: 0;
    top: 8px;
    width: 100%;
    transform: translateY(-10px);
    margin-top: 8px;
  }
  
  .password-requirements.show {
    transform: translateY(0);
  }
  
  .password-requirements::before {
    display: none;
  }
}

@media (max-width: 480px) {
  body {
    padding: var(--spacing-sm);
  }

  .signup-card {
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .card-header {
    margin-bottom: var(--spacing-lg);
  }

  .header-icon {
    width: 56px;
    height: 56px;
  }

  .header-icon i {
    width: 30px;
    height: 30px;
  }

  .header-title {
    font-size: var(--font-lg);
  }

  .header-subtitle {
    font-size: var(--font-sm);
  }

  .input-field {
    margin-bottom: var(--spacing-md);
  }

  .input-wrapper input {
    padding: 0.75rem 0.875rem 0.75rem 2.625rem;
    font-size: var(--font-sm);
  }

  .input-icon i {
    width: 16px;
    height: 16px;
  }

  .signup-btn {
    padding: 0.875rem 1rem;
    font-size: var(--font-sm);
  }

  .login-prompt {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
  }

  .login-prompt p {
    font-size: 0.8125rem;
  }

  .password-requirements {
    padding: 12px;
    font-size: 0.8125rem;
  }
  
  .requirement-item {
    padding: 4px 0;
    font-size: 0.8125rem;
  }
  
  .requirement-dot {
    width: 6px;
    height: 6px;
  }
}

@media (max-width: 360px) {
  .header-title {
    font-size: var(--font-base);
  }

  .header-subtitle {
    font-size: 0.8125rem;
  }

  .input-wrapper input {
    font-size: 0.8125rem;
  }

  .signup-btn {
    font-size: 0.875rem;
  }
}

/* ================================
   ACCESSIBILITY
   ================================ */

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

:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 3px;
}

/* ================================
   UTILITIES
   ================================ */

.hidden {
  display: none !important;
}

.visible {
  display: block !important;
}


.password-strength {
    margin-top: 10px;
}

.strength-meter {
    height: 6px;
    background-color: #e0e0e0;
    border-radius: 3px;
    margin-bottom: 5px;
    overflow: hidden;
}

.strength-bar {
    height: 100%;
    width: 0;
    transition: width 0.3s, background-color 0.3s;
}

.very-weak {
    background-color: #ff4d4d;
}

.weak {
    background-color: #ffa64d;
}

.medium {
    background-color: #ffff4d;
}

.strong {
    background-color: #4dff4d;
}

.very-strong {
    background-color: #4d4dff;
}

#strengthText {
    font-size: 12px;
    color: #666;
}