* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      -webkit-tap-highlight-color: transparent;
    }

    html,
    body {
      height: 100%;
      overflow: hidden;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      background: linear-gradient(135deg, #EE4D2D 0%, #FF6347 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
    }

    /* Animated background circles */
    .bg-circle {
      position: absolute;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.1);
      animation: float 20s infinite ease-in-out;
    }

    .bg-circle:nth-child(1) {
      width: 300px;
      height: 300px;
      top: -100px;
      left: -100px;
      animation-delay: 0s;
    }

    .bg-circle:nth-child(2) {
      width: 200px;
      height: 200px;
      bottom: -50px;
      right: -50px;
      animation-delay: 2s;
    }

    .bg-circle:nth-child(3) {
      width: 150px;
      height: 150px;
      top: 50%;
      right: 10%;
      animation-delay: 4s;
    }

    @keyframes float {

      0%,
      100% {
        transform: translate(0, 0) scale(1);
      }

      33% {
        transform: translate(30px, -30px) scale(1.1);
      }

      66% {
        transform: translate(-20px, 20px) scale(0.9);
      }
    }

    .signup-container {
      width: 90%;
      max-width: 400px;
      position: relative;
      z-index: 10;
      animation: slideUp 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
    }

    @keyframes slideUp {
      from {
        transform: translateY(30px);
        opacity: 0;
      }

      to {
        transform: translateY(0);
        opacity: 1;
      }
    }

    .logo-container {
      text-align: center;
      margin-bottom: 20px;
      animation: fadeIn 0.8s ease 0.2s backwards;
    }

    @keyframes fadeIn {
      from {
        opacity: 0;
        transform: scale(0.8);
      }

      to {
        opacity: 1;
        transform: scale(1);
      }
    }

    .logo {
      width: 60px;
      height: 60px;
      background: white;
      border-radius: 18px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 10px;
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    }

    .logo i {
      font-size: 32px;
      color: #EE4D2D;
    }

    .logo-text {
      color: white;
      font-size: 24px;
      font-weight: 700;
      text-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }

    .signup-card {
      background: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(20px);
      border-radius: 24px;
      padding: 24px 20px;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
      animation: cardSlide 0.6s ease 0.3s backwards;
      position: relative;
      overflow: hidden;
    }

    @keyframes cardSlide {
      from {
        transform: translateY(20px);
        opacity: 0;
      }

      to {
        transform: translateY(0);
        opacity: 1;
      }
    }

    /* Progress bar */
    .progress-container {
      display: flex;
      gap: 8px;
      margin-bottom: 24px;
    }

    .progress-step {
      flex: 1;
      height: 4px;
      background: #e5e7eb;
      border-radius: 2px;
      position: relative;
      overflow: hidden;
    }

    .progress-step.active {
      background: #EE4D2D;
    }

    .progress-step.completed {
      background: #10b981;
    }

    /* Step header */
    .step-header {
      text-align: center;
      margin-bottom: 20px;
    }

    .step-header h3 {
      font-size: 20px;
      color: #1a1a1a;
      margin-bottom: 4px;
      font-weight: 700;
    }

    .step-header p {
      color: #666;
      font-size: 13px;
    }

    .step-number {
      display: inline-block;
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, #EE4D2D 0%, #FF6347 100%);
      color: white;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 14px;
      margin: 0 auto 12px;
      box-shadow: 0 4px 12px rgba(238, 77, 45, 0.3);
    }

    /* Steps container */
    .steps-wrapper {
      position: relative;
      width: 100%;
      min-height: 280px;
    }

    .step {
      position: absolute;
      width: 100%;
      top: 0;
      left: 0;
      opacity: 0;
      transform: translateX(100%);
      transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
      pointer-events: none;
    }

    .step.active {
      opacity: 1;
      transform: translateX(0);
      pointer-events: all;
    }

    .step.prev {
      transform: translateX(-100%);
    }

    .form-group {
      margin-bottom: 16px;
    }

    .form-label {
      display: block;
      margin-bottom: 6px;
      font-weight: 600;
      color: #1a1a1a;
      font-size: 13px;
    }

    .input-wrapper {
      position: relative;
    }

    .input-icon {
      position: absolute;
      left: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: #999;
      font-size: 16px;
      transition: all 0.3s;
      pointer-events: none;
    }

    .form-control {
      width: 100%;
      padding: 13px 14px 13px 42px;
      border: 2px solid #eee;
      border-radius: 12px;
      font-size: 14px;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      background: #f8f9fa;
    }

    .form-control:focus {
      outline: none;
      border-color: #EE4D2D;
      background: white;
      box-shadow: 0 4px 12px rgba(238, 77, 45, 0.15);
    }

    .form-control:focus~.input-icon {
      color: #EE4D2D;
    }

    .toggle-password {
      position: absolute;
      right: 14px;
      top: 50%;
      transform: translateY(-50%);
      background: none;
      border: none;
      color: #999;
      cursor: pointer;
      font-size: 16px;
      padding: 4px;
      transition: all 0.3s;
    }

    .toggle-password:active {
      transform: translateY(-50%) scale(0.9);
    }

    .password-strength {
      margin-top: 8px;
      height: 4px;
      background: #eee;
      border-radius: 2px;
      overflow: hidden;
      display: none;
    }

    .password-strength-bar {
      height: 100%;
      width: 0;
      transition: all 0.3s;
      border-radius: 2px;
    }

    .password-strength.show {
      display: block;
    }

    .password-strength.weak .password-strength-bar {
      width: 33%;
      background: #ef4444;
    }

    .password-strength.medium .password-strength-bar {
      width: 66%;
      background: #f59e0b;
    }

    .password-strength.strong .password-strength-bar {
      width: 100%;
      background: #10b981;
    }

    .password-hint {
      font-size: 11px;
      color: #999;
      margin-top: 4px;
      display: none;
    }

    .password-hint.show {
      display: block;
    }

    .terms-checkbox {
      display: flex;
      align-items: flex-start;
      gap: 8px;
      margin-bottom: 16px;
      font-size: 12px;
      padding: 12px;
      background: #f8f9fa;
      border-radius: 10px;
    }

    .terms-checkbox input {
      width: 18px;
      height: 18px;
      accent-color: #EE4D2D;
      cursor: pointer;
      margin-top: 2px;
      flex-shrink: 0;
    }

    .terms-checkbox label {
      color: #666;
      cursor: pointer;
      line-height: 1.5;
    }

    .terms-checkbox a {
      color: #EE4D2D;
      text-decoration: none;
      font-weight: 600;
    }

    /* Buttons */
    .buttons-container {
      display: flex;
      gap: 10px;
      margin-top: 20px;
    }

    .btn {
      flex: 1;
      padding: 13px;
      border: none;
      border-radius: 12px;
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
    }

    .btn:active {
      transform: scale(0.97);
    }

    .btn-back {
      background: #f3f4f6;
      color: #6b7280;
    }

    .btn-next,
    .btn-finish {
      background: linear-gradient(135deg, #EE4D2D 0%, #FF6347 100%);
      color: white;
      box-shadow: 0 4px 20px rgba(238, 77, 45, 0.3);
    }

    .btn:disabled {
      opacity: 0.6;
      cursor: not-allowed;
    }

    .loading {
      display: inline-block;
      width: 14px;
      height: 14px;
      border: 2px solid #ffffff;
      border-radius: 50%;
      border-top-color: transparent;
      animation: spin 0.6s linear infinite;
    }

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

    .login-link {
      text-align: center;
      color: #666;
      font-size: 12px;
      margin-top: 16px;
    }

    .login-link a {
      color: #EE4D2D;
      text-decoration: none;
      font-weight: 700;
    }

    /* Success checkmark animation */
    .success-container {
      text-align: center;
      padding: 20px 0;
    }

    .success-icon {
      width: 80px;
      height: 80px;
      background: linear-gradient(135deg, #10b981 0%, #059669 100%);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
      animation: successPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    }

    .success-icon i {
      font-size: 40px;
      color: white;
    }

    @keyframes successPop {
      0% {
        transform: scale(0);
        opacity: 0;
      }

      100% {
        transform: scale(1);
        opacity: 1;
      }
    }

    .success-container h3 {
      font-size: 22px;
      color: #1a1a1a;
      margin-bottom: 8px;
      font-weight: 700;
    }

    .success-container p {
      color: #666;
      font-size: 14px;
      margin-bottom: 20px;
    }