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

    :root {
      --bg-1: #0a0a0f;
      --bg-2: #141420;
      --card: rgba(255, 255, 255, 0.03);
      --card-border: rgba(255, 255, 255, 0.08);
      --text-primary: #ffffff;
      --text-secondary: #a1a1aa;
      --accent-a: #ff6b35;
      --accent-b: #f72585;
      --accent-c: #7209b7;
      --accent-d: #3a86ff;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
      background: var(--bg-1);
      color: var(--text-primary);
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 20px;
      overflow-x: hidden;
      position: relative;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      background: radial-gradient(circle at 20% 50%, rgba(255, 107, 53, 0.15), transparent 40%),
                  radial-gradient(circle at 80% 20%, rgba(247, 37, 133, 0.15), transparent 40%),
                  radial-gradient(circle at 40% 80%, rgba(58, 134, 255, 0.12), transparent 40%);
      animation: bgFlow 20s ease-in-out infinite;
      pointer-events: none;
      z-index: 0;
    }

    @keyframes bgFlow {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.8; transform: scale(1.1) rotate(5deg); }
    }

    .particles {
      position: fixed;
      inset: 0;
      overflow: hidden;
      pointer-events: none;
      z-index: 1;
    }

    .particle {
      position: absolute;
      width: 3px;
      height: 3px;
      background: linear-gradient(135deg, var(--accent-a), var(--accent-c));
      border-radius: 50%;
      opacity: 0.3;
      animation: float 15s infinite;
    }

    .particle:nth-child(1) { left: 10%; animation-delay: 0s; }
    .particle:nth-child(2) { left: 25%; animation-delay: 2s; }
    .particle:nth-child(3) { left: 40%; animation-delay: 4s; }
    .particle:nth-child(4) { left: 60%; animation-delay: 1s; }
    .particle:nth-child(5) { left: 75%; animation-delay: 3s; }
    .particle:nth-child(6) { left: 90%; animation-delay: 5s; }

    @keyframes float {
      0%, 100% { transform: translateY(100vh) scale(0); opacity: 0; }
      10% { opacity: 0.3; }
      90% { opacity: 0.3; }
      100% { transform: translateY(-100px) scale(1); }
    }

    .auth-container {
      max-width: 480px;
      width: 100%;
      position: relative;
      z-index: 2;
      animation: containerFadeIn 1s cubic-bezier(0.16, 1, 0.3, 1);
    }

    @keyframes containerFadeIn {
      from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
      }
      to {
        opacity: 1;
        transform: translateY(0) scale(1);
      }
    }

    .auth-card {
      padding: 50px 40px;
      border-radius: 32px;
      background: var(--card);
      backdrop-filter: blur(40px);
      -webkit-backdrop-filter: blur(40px);
      box-shadow: 0 0 0 1px var(--card-border),
                  0 40px 100px rgba(0, 0, 0, 0.4),
                  inset 0 0 80px rgba(255, 255, 255, 0.02);
      position: relative;
      overflow: hidden;
    }

    .auth-card::before,
    .auth-card::after {
      content: "";
      position: absolute;
      border-radius: 50%;
      filter: blur(80px);
      opacity: 0.2;
      animation: pulse 8s ease-in-out infinite;
      pointer-events: none;
    }

    .auth-card::before {
      width: 300px;
      height: 300px;
      background: radial-gradient(circle, var(--accent-a), var(--accent-b));
      top: -150px;
      right: -150px;
    }

    .auth-card::after {
      width: 250px;
      height: 250px;
      background: radial-gradient(circle, var(--accent-c), var(--accent-d));
      bottom: -100px;
      left: -100px;
      animation-delay: 4s;
    }

    @keyframes pulse {
      0%, 100% { transform: scale(1); opacity: 0.2; }
      50% { transform: scale(1.1); opacity: 0.15; }
    }

    .auth-card h2 {
      font-size: 2.5rem;
      font-weight: 900;
      background: linear-gradient(135deg, var(--accent-a), var(--accent-b), var(--accent-c));
      background-size: 200% 200%;
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      letter-spacing: -1.5px;
      margin-bottom: 12px;
      animation: gradientShift 6s ease infinite;
      position: relative;
      z-index: 5;
    }

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

    .subtitle {
      color: var(--text-secondary);
      margin-bottom: 35px;
      font-size: 1rem;
      position: relative;
      z-index: 5;
    }

    form {
      display: flex;
      flex-direction: column;
      gap: 20px;
      position: relative;
      z-index: 5;
    }

    label {
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-primary);
      margin-bottom: -12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    input {
      padding: 16px 20px;
      border-radius: 14px;
      border: 1px solid rgba(255, 255, 255, 0.1);
      background: rgba(255, 255, 255, 0.03);
      backdrop-filter: blur(10px);
      color: var(--text-primary);
      font-size: 1rem;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      outline: none;
    }

    input::placeholder {
      color: var(--text-secondary);
      opacity: 0.6;
    }

    input:focus {
      border-color: var(--accent-a);
      background: rgba(255, 255, 255, 0.05);
      box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1),
                  0 10px 30px rgba(255, 107, 53, 0.1);
      transform: translateY(-2px);
    }

    .btn-primary {
      padding: 18px 40px;
      border-radius: 14px;
      font-weight: 700;
      font-size: 1rem;
      border: none;
      cursor: pointer;
      background: linear-gradient(135deg, var(--accent-a), var(--accent-b));
      color: #fff;
      box-shadow: 0 10px 30px rgba(255, 107, 53, 0.3),
                  inset 0 -2px 10px rgba(0, 0, 0, 0.2);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      position: relative;
      overflow: hidden;
      letter-spacing: 0.5px;
      margin-top: 10px;
    }

    .btn-primary::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
      opacity: 0;
      transition: opacity 0.3s ease;
    }

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

    .btn-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 15px 40px rgba(255, 107, 53, 0.4),
                  inset 0 -2px 10px rgba(0, 0, 0, 0.2);
    }

    .btn-primary:active {
      transform: translateY(-1px);
    }

    .message {
      font-size: 0.9rem;
      text-align: center;
      padding: 12px;
      border-radius: 10px;
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.05);
      min-height: 44px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-top: -5px;
    }

    .message:empty {
      display: none;
    }

    .redirect {
      text-align: center;
      margin-top: 30px;
      color: var(--text-secondary);
      font-size: 0.95rem;
      position: relative;
      z-index: 5;
    }

    .redirect a {
      color: var(--accent-a);
      text-decoration: none;
      font-weight: 600;
      transition: all 0.3s ease;
      position: relative;
    }

    .redirect a::after {
      content: "";
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 0;
      height: 2px;
      background: linear-gradient(90deg, var(--accent-a), var(--accent-b));
      transition: width 0.3s ease;
    }

    .redirect a:hover::after {
      width: 100%;
    }

    .redirect a:hover {
      color: var(--accent-b);
    }

    @media (max-width: 480px) {
      .auth-card {
        padding: 40px 30px;
        border-radius: 24px;
      }

      .auth-card h2 {
        font-size: 2rem;
      }

      input, .btn-primary {
        padding: 15px 18px;
      }
    }