:root {
    --electric: #00d4ff;
    --electric-dark: #0099cc;
    --bg: #0a0e1a;
    --surface: #111827;
    --surface2: #1a2235;
    --border: rgba(0,212,255,0.15);
    --text: #e2e8f0;
    --muted: #64748b;
  }

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

  body {
    font-family: 'Inter', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    overflow: hidden;
  }

  /* Animated background grid */
  body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
      linear-gradient(rgba(0,212,255,0.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(0,212,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridMove 20s linear infinite;
    pointer-events: none;
  }

  /* Glow orbs */
  .orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    animation: float 8s ease-in-out infinite;
  }
  .orb-1 {
    width: 400px; height: 400px;
    background: rgba(0,212,255,0.07);
    top: -100px; left: -100px;
  }
  .orb-2 {
    width: 300px; height: 300px;
    background: rgba(0,80,180,0.1);
    bottom: -80px; right: -80px;
    animation-delay: -4s;
  }

  @keyframes gridMove {
    0% { transform: translateY(0); }
    100% { transform: translateY(60px); }
  }

  @keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-20px) scale(1.05); }
  }

  /* Tab switcher */
  .tab-switcher {
    display: flex;
    gap: 8px;
    margin-bottom: 32px;
    background: var(--surface2);
    border-radius: 12px;
    padding: 4px;
    border: 1px solid var(--border);
  }
  .tab-btn {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: 9px;
    font-family: 'Rajdhani', sans-serif;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: transparent;
    color: var(--muted);
  }
  .tab-btn.active {
    background: var(--electric);
    color: #0a0e1a;
  }

  /* Card */
  .auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 36px;
    position: relative;
    z-index: 10;
    box-shadow: 0 0 60px rgba(0,212,255,0.05), 0 25px 50px rgba(0,0,0,0.5);
    animation: slideUp 0.5s ease;
  }

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

  /* Logo */
  .logo {
    text-align: center;
    margin-bottom: 28px;
  }
  .logo-icon {
    width: 56px; height: 56px;
    background: linear-gradient(135deg, var(--electric), #0066ff);
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    margin-bottom: 12px;
    box-shadow: 0 0 30px rgba(0,212,255,0.3);
  }
  .logo h1 {
    font-family: 'Rajdhani', sans-serif;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 2px;
    color: #fff;
    text-transform: uppercase;
  }
  .logo p {
    font-size: 12px;
    color: var(--muted);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-top: 2px;
  }

  /* Form */
  .form-panel { display: none; }
  .form-panel.active { display: block; animation: fadeIn 0.3s ease; }

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

  .form-label {
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 6px;
    display: block;
  }

  .form-control {
    background: var(--surface2) !important;
    border: 1px solid var(--border) !important;
    border-radius: 10px !important;
    color: var(--text) !important;
    padding: 12px 16px !important;
    font-size: 14px !important;
    transition: all 0.2s ease !important;
  }
  .form-control:focus {
    border-color: var(--electric) !important;
    box-shadow: 0 0 0 3px rgba(0,212,255,0.1) !important;
    outline: none !important;
  }
  .form-control::placeholder { color: var(--muted) !important; }

  .input-wrapper {
    position: relative;
  }
  .input-icon {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--muted);
    font-size: 16px;
    pointer-events: none;
  }
  .input-wrapper .form-control { padding-right: 42px !important; }

  .mb-form { margin-bottom: 18px; }

  /* Button */
  .btn-electric {
    width: 100%;
    padding: 13px;
    background: linear-gradient(135deg, var(--electric), #0066ff);
    border: none;
    border-radius: 10px;
    color: #0a0e1a;
    font-family: 'Rajdhani', sans-serif;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 8px;
    position: relative;
    overflow: hidden;
  }
  .btn-electric::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
    opacity: 0;
    transition: opacity 0.3s;
  }
  .btn-electric:hover::before { opacity: 1; }
  .btn-electric:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 25px rgba(0,212,255,0.35);
  }
  .btn-electric:active { transform: translateY(0); }

  /* Divider */
  .divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 24px 0;
    color: var(--muted);
    font-size: 12px;
    letter-spacing: 1px;
  }
  .divider::before, .divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
  }

  /* Footer link */
  .auth-footer {
    text-align: center;
    font-size: 13px;
    color: var(--muted);
    margin-top: 4px;
  }
  .auth-footer a {
    color: var(--electric);
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.2s;
    cursor: pointer;
  }
  .auth-footer a:hover { opacity: 0.8; text-decoration: underline; }

  /* Forgot password */
  .forgot {
    text-align: right;
    margin-top: -12px;
    margin-bottom: 18px;
  }
  .forgot a {
    font-size: 12px;
    color: var(--electric);
    text-decoration: none;
    cursor: pointer;
  }

  /* Alert */
  .alert-electric {
    background: rgba(255,60,60,0.1);
    border: 1px solid rgba(255,60,60,0.3);
    border-radius: 10px;
    padding: 12px 16px;
    font-size: 13px;
    color: #ff6b6b;
    margin-bottom: 18px;
  }

  /* Stats bar */
  .stats-bar {
    display: flex;
    justify-content: space-between;
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
  }
  .stat-item {
    text-align: center;
  }
  .stat-value {
    font-family: 'Rajdhani', sans-serif;
    font-size: 18px;
    font-weight: 700;
    color: var(--electric);
  }
  .stat-label {
    font-size: 10px;
    color: var(--muted);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-top: 2px;
  }

  /* Corner badge */
  .corner-badge {
    position: absolute;
    top: -1px;
    right: 24px;
    background: var(--electric);
    color: #0a0e1a;
    font-family: 'Rajdhani', sans-serif;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1px;
    padding: 4px 10px;
    border-radius: 0 0 8px 8px;
    text-transform: uppercase;
  }