* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', sans-serif;
        }

        body {
            background: #ffffff;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #111827;
            padding: 20px;
        }

        .container {
            background: #ffffff;
            border: 1px solid #e5e7eb;
            border-radius: 16px;
            padding: 40px;
            max-width: 440px;
            width: 100%;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
        }

        .logo {
            text-align: center;
            margin-bottom: 24px;
        }

        .logo-icon {
            width: 48px;
            height: 48px;
            margin: 0 auto 12px;
        }

        .logo h1 {
            font-size: 24px;
            font-weight: 700;
            color: #111827;
            margin-bottom: 4px;
        }

        .logo p {
            color: #6b7280;
            font-size: 14px;
        }

        .pricing-info {
            background: #f9fafb;
            border: 1px solid #e5e7eb;
            padding: 20px;
            border-radius: 12px;
            margin-bottom: 24px;
        }

        .pricing-info h3 {
            font-size: 16px;
            font-weight: 600;
            color: #111827;
            text-align: center;
            margin-bottom: 8px;
        }

        .pricing-info .price {
            font-size: 32px;
            font-weight: 700;
            text-align: center;
            color: #111827;
            margin-bottom: 12px;
        }

        .pricing-info .price small {
            font-size: 14px;
            font-weight: 400;
            color: #6b7280;
        }

        .pricing-info ul {
            list-style: none;
            margin: 0;
        }

        .pricing-info li {
            padding: 6px 0;
            padding-left: 24px;
            position: relative;
            font-size: 14px;
            color: #374151;
        }

        .pricing-info li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: #111827;
            font-weight: 600;
        }

        .message {
            padding: 12px 16px;
            border-radius: 8px;
            margin-bottom: 16px;
            font-size: 14px;
            display: none;
        }

        .message.success {
            background: #d1fae5;
            color: #065f46;
            border: 1px solid #a7f3d0;
        }

        .message.error {
            background: #fee2e2;
            color: #991b1b;
            border: 1px solid #fecaca;
        }

        .google-btn {
            width: 100%;
            padding: 12px;
            font-size: 14px;
            font-weight: 500;
            border: 1px solid #d1d5db;
            border-radius: 8px;
            background: #ffffff;
            color: #374151;
            cursor: pointer;
            transition: all 0.2s;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }

        .google-btn:hover:not(:disabled) {
            background: #f9fafb;
            border-color: #9ca3af;
        }

        .divider {
            text-align: center;
            margin: 20px 0;
            position: relative;
        }

        .divider::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            width: 100%;
            height: 1px;
            background: #e5e7eb;
        }

        .divider span {
            background: #ffffff;
            padding: 0 12px;
            position: relative;
            z-index: 1;
            color: #6b7280;
            font-size: 13px;
        }

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

        label {
            display: block;
            margin-bottom: 6px;
            font-weight: 500;
            font-size: 14px;
            color: #374151;
        }

        input {
            width: 100%;
            padding: 12px 14px;
            background: #ffffff;
            border: 1px solid #d1d5db;
            border-radius: 8px;
            color: #111827;
            font-size: 14px;
            transition: all 0.2s;
        }

        input::placeholder {
            color: #9ca3af;
        }

        input:focus {
            outline: none;
            border-color: #111827;
        }

        button[type="submit"] {
            width: 100%;
            padding: 12px;
            font-size: 14px;
            font-weight: 600;
            border: none;
            border-radius: 8px;
            background: #111827;
            color: #ffffff;
            cursor: pointer;
            transition: all 0.2s;
            margin-top: 8px;
        }

        button[type="submit"]:hover:not(:disabled) {
            background: #1f2937;
            transform: translateY(-1px);
        }

        button[type="submit"]:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        .link-text {
            text-align: center;
            margin-top: 20px;
            font-size: 14px;
            color: #6b7280;
        }

        .link-text a {
            color: #111827;
            text-decoration: none;
            font-weight: 600;
        }

        .link-text a:hover {
            text-decoration: underline;
        }

        .password-strength {
            margin-top: 8px;
            font-size: 13px;
            color: #6b7280;
        }

        .strength-bar {
            height: 3px;
            background: #e5e7eb;
            border-radius: 2px;
            margin-top: 4px;
            overflow: hidden;
        }

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

        .strength-weak { width: 33%; background: #ef4444; }
        .strength-medium { width: 66%; background: #f59e0b; }
        .strength-strong { width: 100%; background: #10b981; }

        .loading {
            display: inline-block;
            width: 14px;
            height: 14px;
            border: 2px solid #e5e7eb;
            border-top-color: #ffffff;
            border-radius: 50%;
            animation: spin 0.6s linear infinite;
        }

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