:root {
  --bg-color: #090d16;
  --card-bg: rgba(17, 24, 39, 0.7);
  --card-border: rgba(255, 255, 255, 0.08);
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --primary-accent: #6366f1;
  --secondary-accent: #a855f7;
  --gradient-accent: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  --success: #10b981;
  --error: #ef4444;
  --input-bg: rgba(15, 23, 42, 0.6);
  --input-border: rgba(255, 255, 255, 0.1);
  --font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: var(--font-family);
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Glow Background Effects */
.auth-wrapper {
  position: relative;
  width: 100%;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 40px 20px;
  z-index: 1;
}

.glow-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  z-index: -1;
  pointer-events: none;
}

.glow-circle {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
}

.glow-circle.primary {
  width: 400px;
  height: 400px;
  background: var(--primary-accent);
  top: -100px;
  left: -100px;
}

.glow-circle.secondary {
  width: 450px;
  height: 450px;
  background: var(--secondary-accent);
  bottom: -150px;
  right: -100px;
}

/* Card Styling */
.auth-container {
  width: 100%;
  max-width: 540px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 24px;
  padding: 40px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.auth-container:hover {
  box-shadow: 0 30px 60px -10px rgba(99, 102, 241, 0.15);
}

/* Header */
.auth-header {
  text-align: center;
  margin-bottom: 30px;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 8px;
}

.logo-icon {
  background: var(--gradient-accent);
  color: white;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.3rem;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.logo-text {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Tabs */
.auth-tabs {
  display: flex;
  background: rgba(0, 0, 0, 0.2);
  padding: 6px;
  border-radius: 14px;
  margin-bottom: 32px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.tab-btn {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.tab-btn.active {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Auth Sections */
.auth-content {
  display: none;
}

.auth-content.active {
  display: block;
  animation: fadeIn 0.4s ease forwards;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Stepper progress indicator */
.stepper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  position: relative;
  padding: 0 10px;
}

.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 2;
  position: relative;
}

.step-number {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--input-bg);
  border: 2px solid var(--input-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all 0.3s ease;
}

.step-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
  transition: all 0.3s ease;
}

.step-connector {
  position: absolute;
  top: 16px;
  left: 42px;
  right: 42px;
  height: 2px;
  background: var(--input-border);
  z-index: 1;
  transition: background-color 0.3s ease;
}

.step.active .step-number {
  background: var(--primary-accent);
  border-color: var(--primary-accent);
  color: white;
  box-shadow: 0 0 12px rgba(99, 102, 241, 0.4);
}

.step.active .step-label {
  color: var(--text-primary);
  font-weight: 600;
}

.step.completed .step-number {
  background: var(--success);
  border-color: var(--success);
  color: white;
}

.step-connector.completed {
  background: var(--success);
}

/* Form Styles */
.step-content {
  display: none;
}

.step-content.active {
  display: flex;
  flex-direction: column;
  gap: 20px;
  animation: slideIn 0.3s ease forwards;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(10px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.input-row {
  display: flex;
  gap: 16px;
}

.input-row .input-group {
  flex: 1;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 14px;
  font-size: 1.1rem;
  color: var(--text-secondary);
}

input {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 12px;
  padding: 14px 14px 14px 42px;
  color: white;
  font-size: 0.95rem;
  transition: all 0.25s ease;
}

input:focus {
  outline: none;
  border-color: var(--primary-accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
  background: rgba(15, 23, 42, 0.8);
}

input::placeholder {
  color: rgba(255, 255, 255, 0.3);
}

input[readonly] {
  background: rgba(16, 185, 129, 0.05);
  border-color: rgba(16, 185, 129, 0.2);
  color: #a7f3d0;
  cursor: default;
}

.input-wrapper.verified input {
  padding-right: 90px;
}

.verified-badge {
  position: absolute;
  right: 14px;
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.input-tip {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* reCAPTCHA Customization Container */
#recaptcha-container {
  margin: 10px 0;
  display: flex;
  justify-content: center;
}

/* Buttons */
.btn {
  width: 100%;
  border: none;
  border-radius: 12px;
  padding: 14px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-primary {
  background: var(--gradient-accent);
  color: white;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45);
  opacity: 0.95;
}

.btn-primary:active:not(:disabled) {
  transform: translateY(1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-secondary:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.08);
  margin: 8px 0;
}

/* Messages */
.message {
  margin-top: 24px;
  padding: 14px 16px;
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: 500;
  line-height: 1.4;
  display: none;
  animation: fadeIn 0.3s ease;
  border: 1px solid transparent;
}

.message.active {
  display: block;
}

.message.success {
  background: rgba(16, 185, 129, 0.1);
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.2);
}

.message.error {
  background: rgba(239, 68, 68, 0.1);
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.2);
}

/* Responsive adjustment */
@media (max-width: 480px) {
  .auth-container {
    padding: 24px 16px;
  }
  .input-row {
    flex-direction: column;
    gap: 20px;
  }
}